5 Changes between 0.9.6 and 0.9.7 [xx XXX 2001]
7 OpenSSL 0.9.6a/0.9.6b (bugfix releases, 5 Apr 2001 and 9 July 2001)
8 and OpenSSL 0.9.7 were developed in parallel, based on OpenSSL 0.9.6.
10 Change log entries are tagged as follows:
11 -) applies to 0.9.6a/0.9.6b/0.9.6c only
12 *) applies to 0.9.6a/0.9.6b/0.9.6c and 0.9.7
13 +) applies to 0.9.7 only
15 *) Disable caching in BIO_gethostbyname(), directly use gethostbyname()
16 instead. BIO_gethostbyname() does not know what timeouts are
17 appropriate, so entries would stay in cache even when they hade
19 [Bodo Moeller; problem pointed out by Rich Salz <rsalz@zolera.com>
21 +) New command line and configuration option 'utf8' for the req command.
22 This allows field values to be specified as UTF8 strings.
25 +) Add -multi and -mr options to "openssl speed" - giving multiple parallel
26 runs for the former and machine-readable output for the latter.
29 +) Add '-noemailDN' option to 'openssl ca'. This prevents inclusion
30 of the e-mail address in the DN (i.e., it will go into a certificate
31 extension only). The new configuration file option 'email_in_dn = no'
33 [Massimiliano Pala madwolf@openca.org]
35 *) Change ssl23_get_client_hello (ssl/s23_srvr.c) behaviour when
36 faced with a pathologically small ClientHello fragment that does
37 not contain client_version: Instead of aborting with an error,
38 simply choose the highest available protocol version (i.e.,
39 TLS 1.0 unless it is disabled). In practice, ClientHello
40 messages are never sent like this, but this change gives us
41 strictly correct behaviour at least for TLS.
44 +) Change all functions with names starting with des_ to be starting
45 with DES_ instead. This because there are increasing clashes with
46 libdes and other des libraries that are currently used by other
47 projects. The old libdes interface is provided, as well as crypt(),
48 if openssl/des_old.h is included. Note that crypt() is no longer
49 declared in openssl/des.h.
51 NOTE: This is a major break of an old API into a new one. Software
52 authors are encouraged to switch to the DES_ style functions. Some
53 time in the future, des_old.h and the libdes compatibility functions
54 will be completely removed.
57 *) Fix SSL handshake functions and SSL_clear() such that SSL_clear()
58 never resets s->method to s->ctx->method when called from within
59 one of the SSL handshake functions.
60 [Bodo Moeller; problem pointed out by Niko Baric]
62 +) Test for certificates which contain unsupported critical extensions.
63 If such a certificate is found during a verify operation it is
64 rejected by default: this behaviour can be overridden by either
65 handling the new error X509_V_ERR_UNHANDLED_CRITICAL_EXTENSION or
66 by setting the verify flag X509_V_FLAG_IGNORE_CRITICAL. A new function
67 X509_supported_extension() has also been added which returns 1 if a
68 particular extension is supported.
71 +) New functions/macros
73 SSL_CTX_set_msg_callback(ctx, cb)
74 SSL_CTX_set_msg_callback_arg(ctx, arg)
75 SSL_set_msg_callback(ssl, cb)
76 SSL_set_msg_callback_arg(ssl, arg)
78 to request calling a callback function
80 void cb(int write_p, int version, int content_type,
81 const void *buf, size_t len, SSL *ssl, void *arg)
83 whenever a protocol message has been completely received
84 (write_p == 0) or sent (write_p == 1). Here 'version' is the
85 protocol version according to which the SSL library interprets
86 the current protocol message (SSL2_VERSION, SSL3_VERSION, or
87 TLS1_VERSION). 'content_type' is 0 in the case of SSL 2.0, or
88 the content type as defined in the SSL 3.0/TLS 1.0 protocol
89 specification (change_cipher_spec(20), alert(21), handshake(22)).
90 'buf' and 'len' point to the actual message, 'ssl' to the
91 SSL object, and 'arg' is the application-defined value set by
92 SSL[_CTX]_set_msg_callback_arg().
94 'openssl s_client' and 'openssl s_server' have new '-msg' options
95 to enable a callback that displays all protocol messages.
97 TODO: SSL 2.0, doc/ssl/, doc/apps/
100 *) In ssl3_get_client_hello (ssl/s3_srvr.c), generate a fatal alert
101 (sent using the client's version number) if client_version is
102 smaller than the protocol version in use. Also change
103 ssl23_get_client_hello (ssl/s23_srvr.c) to select TLS 1.0 if
104 the client demanded SSL 3.0 but only TLS 1.0 is enabled; then
105 the client will at least see that alert.
108 +) Modify the behaviour of EVP cipher functions in similar way to digests
109 to retain compatibility with existing code.
112 +) Modify the behaviour of EVP_DigestInit() and EVP_DigestFinal() to retain
113 compatibility with existing code. In particular the 'ctx' parameter does
114 not have to be to be initialized before the call to EVP_DigestInit() and
115 it is tidied up after a call to EVP_DigestFinal(). New function
116 EVP_DigestFinal_ex() which does not tidy up the ctx. Similarly function
117 EVP_MD_CTX_copy() changed to not require the destination to be
118 initialized valid and new function EVP_MD_CTX_copy_ex() added which
119 requires the destination to be valid.
121 Modify all the OpenSSL digest calls to use EVP_DigestInit_ex(),
122 EVP_DigestFinal_ex() and EVP_MD_CTX_copy_ex().
125 +) Change ssl3_get_message (ssl/s3_both.c) and the functions using it
126 so that complete 'Handshake' protocol structures are kept in memory
127 instead of overwriting 'msg_type' and 'length' with 'body' data.
130 *) Fix ssl3_get_message (ssl/s3_both.c) to handle message fragmentation
134 +) Add an implementation of SSL_add_dir_cert_subjects_to_stack for Win32.
135 [Massimo Santin via Richard Levitte]
137 +) Major restructuring to the underlying ENGINE code. This includes
138 reduction of linker bloat, separation of pure "ENGINE" manipulation
139 (initialisation, etc) from functionality dealing with implementations
140 of specific crypto iterfaces. This change also introduces integrated
141 support for symmetric ciphers and digest implementations - so ENGINEs
142 can now accelerate these by providing EVP_CIPHER and EVP_MD
143 implementations of their own. This is detailed in crypto/engine/README
144 as it couldn't be adequately described here. However, there are a few
145 API changes worth noting - some RSA, DSA, DH, and RAND functions that
146 were changed in the original introduction of ENGINE code have now
147 reverted back - the hooking from this code to ENGINE is now a good
148 deal more passive and at run-time, operations deal directly with
149 RSA_METHODs, DSA_METHODs (etc) as they did before, rather than
150 dereferencing through an ENGINE pointer any more. Also, the ENGINE
151 functions dealing with BN_MOD_EXP[_CRT] handlers have been removed -
152 they were not being used by the framework as there is no concept of a
153 BIGNUM_METHOD and they could not be generalised to the new
154 'ENGINE_TABLE' mechanism that underlies the new code. Similarly,
155 ENGINE_cpy() has been removed as it cannot be consistently defined in
159 +) Change ASN1_GENERALIZEDTIME_check() to allow fractional seconds.
162 +) Change mkdef.pl to sort symbols that get the same entry number,
163 and make sure the automatically generated functions ERR_load_*
164 become part of libeay.num as well.
167 *) Avoid infinite loop in ssl3_get_message (ssl/s3_both.c) if a
168 client receives HelloRequest while in a handshake.
169 [Bodo Moeller; bug noticed by Andy Schneider <andy.schneider@bjss.co.uk>]
171 +) New function SSL_renegotiate_pending(). This returns true once
172 renegotiation has been requested (either SSL_renegotiate() call
173 or HelloRequest/ClientHello receveived from the peer) and becomes
174 false once a handshake has been completed.
175 (For servers, SSL_renegotiate() followed by SSL_do_handshake()
176 sends a HelloRequest, but does not ensure that a handshake takes
177 place. SSL_renegotiate_pending() is useful for checking if the
178 client has followed the request.)
181 +) New SSL option SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION.
182 By default, clients may request session resumption even during
183 renegotiation (if session ID contexts permit); with this option,
184 session resumption is possible only in the first handshake.
187 *) Bugfix in ssl3_accept (ssl/s3_srvr.c): Case SSL3_ST_SW_HELLO_REQ_C
188 should end in 'break', not 'goto end' which circuments various
189 cleanups done in state SSL_ST_OK. But session related stuff
190 must be disabled for SSL_ST_OK in the case that we just sent a
193 Also avoid some overhead by not calling ssl_init_wbio_buffer()
194 before just sending a HelloRequest.
195 [Bodo Moeller, Eric Rescorla <ekr@rtfm.com>]
197 *) Fix ssl/s3_enc.c, ssl/t1_enc.c and ssl/s3_pkt.c so that we don't
198 reveal whether illegal block cipher padding was found or a MAC
199 verification error occured. (Neither SSLerr() codes nor alerts
200 are directly visible to potential attackers, but the information
201 may leak via logfiles.)
203 Similar changes are not required for the SSL 2.0 implementation
204 because the number of padding bytes is sent in clear for SSL 2.0,
205 and the extra bytes are just ignored. However ssl/s2_pkt.c
206 failed to verify that the purported number of padding bytes is in
210 +) Add some demos for certificate and certificate request creation.
213 +) Make maximum certificate chain size accepted from the peer application
214 settable (SSL*_get/set_max_cert_list()), as proposed by
215 "Douglas E. Engert" <deengert@anl.gov>.
218 +) Add support for shared libraries for Unixware-7 and support including
219 shared libraries for OpenUNIX-8 (Boyd Lynn Gerber <gerberb@zenez.com>).
222 *) Improve RSA_padding_check_PKCS1_OAEP() check again to avoid
223 'wristwatch attack' using huge encoding parameters (cf.
224 James H. Manger's CRYPTO 2001 paper). Note that the
225 RSA_PKCS1_OAEP_PADDING case of RSA_private_decrypt() does not use
226 encoding parameters and hence was not vulnerable.
229 +) Add a "destroy" handler to ENGINEs that allows structural cleanup to
230 be done prior to destruction. Use this to unload error strings from
231 ENGINEs that load their own error strings. NB: This adds two new API
232 functions to "get" and "set" this destroy handler in an ENGINE.
235 +) Alter all existing ENGINE implementations (except "openssl" and
236 "openbsd") to dynamically instantiate their own error strings. This
237 makes them more flexible to be built both as statically-linked ENGINEs
238 and self-contained shared-libraries loadable via the "dynamic" ENGINE.
239 Also, add stub code to each that makes building them as self-contained
240 shared-libraries easier (see README.ENGINE).
243 +) Add a "dynamic" ENGINE that provides a mechanism for binding ENGINE
244 implementations into applications that are completely implemented in
245 self-contained shared-libraries. The "dynamic" ENGINE exposes control
246 commands that can be used to configure what shared-library to load and
247 to control aspects of the way it is handled. Also, made an update to
248 the README.ENGINE file that brings its information up-to-date and
249 provides some information and instructions on the "dynamic" ENGINE
250 (ie. how to use it, how to build "dynamic"-loadable ENGINEs, etc).
254 [Ulf Möller, reported by Jim Ellis <jim.ellis@cavium.com>]
256 *) Make it possible to unload ranges of ERR strings with a new
257 "ERR_unload_strings" function.
260 *) Rabin-Miller test analyses assume uniformly distributed witnesses,
261 so use BN_pseudo_rand_range() instead of using BN_pseudo_rand()
262 followed by modular reduction.
263 [Bodo Moeller; pointed out by Adam Young <AYoung1@NCSUS.JNJ.COM>]
265 *) Add BN_pseudo_rand_range() with obvious functionality: BN_rand_range()
266 equivalent based on BN_pseudo_rand() instead of BN_rand().
269 +) Add a copy() function to EVP_MD.
272 +) Make EVP_MD routines take a context pointer instead of just the
273 md_data void pointer.
276 +) Add flags to EVP_MD and EVP_MD_CTX. EVP_MD_FLAG_ONESHOT indicates
277 that the digest can only process a single chunk of data
278 (typically because it is provided by a piece of
279 hardware). EVP_MD_CTX_FLAG_ONESHOT indicates that the application
280 is only going to provide a single chunk of data, and hence the
281 framework needn't accumulate the data for oneshot drivers.
284 +) As with "ERR", make it possible to replace the underlying "ex_data"
285 functions. This change also alters the storage and management of global
286 ex_data state - it's now all inside ex_data.c and all "class" code (eg.
287 RSA, BIO, SSL_CTX, etc) no longer stores its own STACKS and per-class
288 index counters. The API functions that use this state have been changed
289 to take a "class_index" rather than pointers to the class's local STACK
290 and counter, and there is now an API function to dynamically create new
291 classes. This centralisation allows us to (a) plug a lot of the
292 thread-safety problems that existed, and (b) makes it possible to clean
293 up all allocated state using "CRYPTO_cleanup_all_ex_data()". W.r.t. (b)
294 such data would previously have always leaked in application code and
295 workarounds were in place to make the memory debugging turn a blind eye
296 to it. Application code that doesn't use this new function will still
297 leak as before, but their memory debugging output will announce it now
298 rather than letting it slide.
300 Besides the addition of CRYPTO_cleanup_all_ex_data(), another API change
301 induced by the "ex_data" overhaul is that X509_STORE_CTX_init() now
302 has a return value to indicate success or failure.
305 +) Make it possible to replace the underlying "ERR" functions such that the
306 global state (2 LHASH tables and 2 locks) is only used by the "default"
307 implementation. This change also adds two functions to "get" and "set"
308 the implementation prior to it being automatically set the first time
309 any other ERR function takes place. Ie. an application can call "get",
310 pass the return value to a module it has just loaded, and that module
311 can call its own "set" function using that value. This means the
312 module's "ERR" operations will use (and modify) the error state in the
313 application and not in its own statically linked copy of OpenSSL code.
316 +) Give DH, DSA, and RSA types their own "**_up_ref()" function to increment
317 reference counts. This performs normal REF_PRINT/REF_CHECK macros on
318 the operation, and provides a more encapsulated way for external code
319 (crypto/evp/ and ssl/) to do this. Also changed the evp and ssl code
320 to use these functions rather than manually incrementing the counts.
322 Also rename "DSO_up()" function to more descriptive "DSO_up_ref()".
325 *) s3_srvr.c: allow sending of large client certificate lists (> 16 kB).
326 This function was broken, as the check for a new client hello message
327 to handle SGC did not allow these large messages.
328 (Tracked down by "Douglas E. Engert" <deengert@anl.gov>.)
331 *) Add alert descriptions for TLSv1 to SSL_alert_desc_string[_long]().
334 +) Add EVP test program.
337 +) Add symmetric cipher support to ENGINE. Expect the API to change!
340 +) New CRL functions: X509_CRL_set_version(), X509_CRL_set_issuer_name()
341 X509_CRL_set_lastUpdate(), X509_CRL_set_nextUpdate(), X509_CRL_sort(),
342 X509_REVOKED_set_serialNumber(), and X509_REVOKED_set_revocationDate().
343 These allow a CRL to be built without having to access X509_CRL fields
344 directly. Modify 'ca' application to use new functions.
347 *) Fix buggy behaviour of BIO_get_num_renegotiates() and BIO_ctrl()
348 for BIO_C_GET_WRITE_BUF_SIZE ("Stephen Hinton" <shinton@netopia.com>).
351 *) Rework the configuration and shared library support for Tru64 Unix.
352 The configuration part makes use of modern compiler features and
353 still retains old compiler behavior for those that run older versions
354 of the OS. The shared library support part includes a variant that
355 uses the RPATH feature, and is available through the special
356 configuration target "alpha-cc-rpath", which will never be selected
358 [Tim Mooney <mooney@dogbert.cc.ndsu.NoDak.edu> via Richard Levitte]
360 *) In ssl3_get_key_exchange (ssl/s3_clnt.c), call ssl3_get_message()
361 with the same message size as in ssl3_get_certificate_request().
362 Otherwise, if no ServerKeyExchange message occurs, CertificateRequest
363 messages might inadvertently be reject as too long.
364 [Petr Lampa <lampa@fee.vutbr.cz>]
366 +) Move SSL_OP_TLS_ROLLBACK_BUG out of the SSL_OP_ALL list of recommended
367 bug workarounds. Rollback attack detection is a security feature.
368 The problem will only arise on OpenSSL servers when TLSv1 is not
369 available (sslv3_server_method() or SSL_OP_NO_TLSv1).
370 Software authors not wanting to support TLSv1 will have special reasons
371 for their choice and can explicitly enable this option.
372 [Bodo Moeller, Lutz Jaenicke]
374 +) Rationalise EVP so it can be extended: don't include a union of
375 cipher/digest structures, add init/cleanup functions. This also reduces
376 the number of header dependencies.
379 +) Make DES key schedule conform to the usual scheme, as well as
380 correcting its structure. This means that calls to DES functions
381 now have to pass a pointer to a des_key_schedule instead of a
382 plain des_key_schedule (which was actually always a pointer
386 +) Enhanced support for IA-64 Unix platforms (well, Linux and HP-UX).
389 *) Modified SSL library such that the verify_callback that has been set
390 specificly for an SSL object with SSL_set_verify() is actually being
391 used. Before the change, a verify_callback set with this function was
392 ignored and the verify_callback() set in the SSL_CTX at the time of
393 the call was used. New function X509_STORE_CTX_set_verify_cb() introduced
394 to allow the necessary settings.
397 +) Initial reduction of linker bloat: the use of some functions, such as
398 PEM causes large amounts of unused functions to be linked in due to
399 poor organisation. For example pem_all.c contains every PEM function
400 which has a knock on effect of linking in large amounts of (unused)
401 ASN1 code. Grouping together similar functions and splitting unrelated
402 functions prevents this.
405 *) Initialize static variable in crypto/dsa/dsa_lib.c and crypto/dh/dh_lib.c
406 explicitly to NULL, as at least on Solaris 8 this seems not always to be
407 done automatically (in contradiction to the requirements of the C
408 standard). This made problems when used from OpenSSH.
411 *) In OpenSSL 0.9.6a and 0.9.6b, crypto/dh/dh_key.c ignored
412 dh->length and always used
414 BN_rand_range(priv_key, dh->p).
416 BN_rand_range() is not necessary for Diffie-Hellman, and this
417 specific range makes Diffie-Hellman unnecessarily inefficient if
418 dh->length (recommended exponent length) is much smaller than the
419 length of dh->p. We could use BN_rand_range() if the order of
420 the subgroup was stored in the DH structure, but we only have
425 BN_rand(priv_key, l, ...)
427 where 'l' is dh->length if this is defined, or BN_num_bits(dh->p)-1
433 RSA_eay_public_encrypt
434 RSA_eay_private_decrypt
435 RSA_eay_private_encrypt (signing)
436 RSA_eay_public_decrypt (signature verification)
438 (default implementations for RSA_public_encrypt,
439 RSA_private_decrypt, RSA_private_encrypt, RSA_public_decrypt),
440 always reject numbers >= n.
443 *) In crypto/rand/md_rand.c, use a new short-time lock CRYPTO_LOCK_RAND2
444 to synchronize access to 'locking_thread'. This is necessary on
445 systems where access to 'locking_thread' (an 'unsigned long'
446 variable) is not atomic.
449 *) In crypto/rand/md_rand.c, set 'locking_thread' to current thread's ID
450 *before* setting the 'crypto_lock_rand' flag. The previous code had
451 a race condition if 0 is a valid thread ID.
452 [Travis Vitek <vitek@roguewave.com>]
454 +) Cleanup of EVP macros.
457 +) Change historical references to {NID,SN,LN}_des_ede and ede3 to add the
461 +) Add initial OCSP responder support to ocsp application. The
462 revocation information is handled using the text based index
463 use by the ca application. The responder can either handle
464 requests generated internally, supplied in files (for example
465 via a CGI script) or using an internal minimal server.
468 +) Add configuration choices to get zlib compression for TLS.
471 +) Changes to Kerberos SSL for RFC 2712 compliance:
472 1. Implemented real KerberosWrapper, instead of just using
473 KRB5 AP_REQ message. [Thanks to Simon Wilkinson <sxw@sxw.org.uk>]
474 2. Implemented optional authenticator field of KerberosWrapper.
476 Added openssl-style ASN.1 macros for Kerberos ticket, ap_req,
477 and authenticator structs; see crypto/krb5/.
479 Generalized Kerberos calls to support multiple Kerberos libraries.
480 [Vern Staats <staatsvr@asc.hpc.mil>,
481 Jeffrey Altman <jaltman@columbia.edu>
484 +) Cause 'openssl speed' to use fully hard-coded DSA keys as it
485 already does with RSA. testdsa.h now has 'priv_key/pub_key'
486 values for each of the key sizes rather than having just
487 parameters (and 'speed' generating keys each time).
490 -) OpenSSL 0.9.6b released [9 July 2001]
492 *) Change ssleay_rand_bytes (crypto/rand/md_rand.c)
493 to avoid a SSLeay/OpenSSL PRNG weakness pointed out by
494 Markku-Juhani O. Saarinen <markku-juhani.saarinen@nokia.com>:
495 PRNG state recovery was possible based on the output of
496 one PRNG request appropriately sized to gain knowledge on
497 'md' followed by enough consecutive 1-byte PRNG requests
498 to traverse all of 'state'.
500 1. When updating 'md_local' (the current thread's copy of 'md')
501 during PRNG output generation, hash all of the previous
502 'md_local' value, not just the half used for PRNG output.
504 2. Make the number of bytes from 'state' included into the hash
505 independent from the number of PRNG bytes requested.
507 The first measure alone would be sufficient to avoid
508 Markku-Juhani's attack. (Actually it had never occurred
509 to me that the half of 'md_local' used for chaining was the
510 half from which PRNG output bytes were taken -- I had always
511 assumed that the secret half would be used.) The second
512 measure makes sure that additional data from 'state' is never
513 mixed into 'md_local' in small portions; this heuristically
514 further strengthens the PRNG.
517 +) Speed up EVP routines.
520 type 8 bytes 64 bytes 256 bytes 1024 bytes 8192 bytes
521 des-cbc 4408.85k 5560.51k 5778.46k 5862.20k 5825.16k
522 des-cbc 4389.55k 5571.17k 5792.23k 5846.91k 5832.11k
523 des-cbc 4394.32k 5575.92k 5807.44k 5848.37k 5841.30k
525 des-cbc 3482.66k 5069.49k 5496.39k 5614.16k 5639.28k
526 des-cbc 3480.74k 5068.76k 5510.34k 5609.87k 5635.52k
527 des-cbc 3483.72k 5067.62k 5504.60k 5708.01k 5724.80k
530 des-cbc 4660.16k 5650.19k 5807.19k 5827.13k 5783.32k
532 des-cbc 3624.96k 5258.21k 5530.91k 5624.30k 5628.26k
535 *) Fix crypto/bn/asm/mips3.s.
538 *) When only the key is given to "enc", the IV is undefined. Print out
539 an error message in this case.
542 +) Added the OS2-EMX target.
543 ["Brian Havard" <brianh@kheldar.apana.org.au> and Richard Levitte]
545 +) Rewrite apps to use NCONF routines instead of the old CONF. New functions
546 to support NCONF routines in extension code. New function CONF_set_nconf()
547 to allow functions which take an NCONF to also handle the old LHASH
548 structure: this means that the old CONF compatible routines can be
549 retained (in particular wrt extensions) without having to duplicate the
550 code. New function X509V3_add_ext_nconf_sk to add extensions to a stack.
553 *) Handle special case when X509_NAME is empty in X509 printing routines.
556 *) In dsa_do_verify (crypto/dsa/dsa_ossl.c), verify that r and s are
557 positive and less than q.
560 +) Enhance the general user interface with mechanisms for inner control
561 and with possibilities to have yes/no kind of prompts.
564 +) Change all calls to low level digest routines in the library and
565 applications to use EVP. Add missing calls to HMAC_cleanup() and
566 don't assume HMAC_CTX can be copied using memcpy().
567 [Verdon Walker <VWalker@novell.com>, Steve Henson]
569 +) Add the possibility to control engines through control names but with
570 arbitrary arguments instead of just a string.
571 Change the key loaders to take a UI_METHOD instead of a callback
572 function pointer. NOTE: this breaks binary compatibility with earlier
573 versions of OpenSSL [engine].
574 Adapt the nCipher code for these new conditions and add a card insertion
578 +) Enhance the general user interface with mechanisms to better support
579 dialog box interfaces, application-defined prompts, the possibility
580 to use defaults (for example default passwords from somewhere else)
581 and interrupts/cancellations.
584 *) Don't change *pointer in CRYPTO_add_lock() is add_lock_callback is
585 used: it isn't thread safe and the add_lock_callback should handle
587 [Paul Rose <Paul.Rose@bridge.com>]
589 *) Verify that incoming data obeys the block size in
590 ssl3_enc (ssl/s3_enc.c) and tls1_enc (ssl/t1_enc.c).
593 +) Tidy up PKCS#12 attribute handling. Add support for the CSP name
594 attribute in PKCS#12 files, add new -CSP option to pkcs12 utility.
598 [Ulf Möller, Bodo Möller]
600 *) The countermeasure against Bleichbacher's attack on PKCS #1 v1.5
601 RSA encryption was accidentally removed in s3_srvr.c in OpenSSL 0.9.5
602 when fixing the server behaviour for backwards-compatible 'client
603 hello' messages. (Note that the attack is impractical against
604 SSL 3.0 and TLS 1.0 anyway because length and version checking
605 means that the probability of guessing a valid ciphertext is
606 around 2^-40; see section 5 in Bleichenbacher's CRYPTO '98
609 Before 0.9.5, the countermeasure (hide the error by generating a
610 random 'decryption result') did not work properly because
611 ERR_clear_error() was missing, meaning that SSL_get_error() would
612 detect the supposedly ignored error.
614 Both problems are now fixed.
617 *) In crypto/bio/bf_buff.c, increase DEFAULT_BUFFER_SIZE to 4096
618 (previously it was 1024).
621 +) Fix a memory leak in 'sk_dup()' in the case reallocation fails. (Also
622 tidy up some unnecessarily weird code in 'sk_new()').
623 [Geoff, reported by Diego Tartara <dtartara@novamens.com>]
625 +) Change the key loading routines for ENGINEs to use the same kind
626 callback (pem_password_cb) as all other routines that need this
630 *) Fix for compatibility mode trust settings: ignore trust settings
631 unless some valid trust or reject settings are present.
634 *) Fix for blowfish EVP: its a variable length cipher.
637 +) Increase ENTROPY_NEEDED to 32 bytes, as Rijndael can operate with
638 256 bit (=32 byte) keys. Of course seeding with more entropy bytes
639 than this minimum value is recommended.
642 +) New random seeder for OpenVMS, using the system process statistics
643 that are easily reachable.
646 +) Windows apparently can't transparently handle global
647 variables defined in DLLs. Initialisations such as:
649 const ASN1_ITEM *it = &ASN1_INTEGER_it;
651 wont compile. This is used by the any applications that need to
652 declare their own ASN1 modules. This was fixed by adding the option
653 EXPORT_VAR_AS_FN to all Win32 platforms, although this isn't strictly
654 needed for static libraries under Win32.
657 +) New functions X509_PURPOSE_set() and X509_TRUST_set() to handle
658 setting of purpose and trust fields. New X509_STORE trust and
659 purpose functions and tidy up setting in other SSL functions.
662 +) Add copies of X509_STORE_CTX fields and callbacks to X509_STORE
663 structure. These are inherited by X509_STORE_CTX when it is
664 initialised. This allows various defaults to be set in the
665 X509_STORE structure (such as flags for CRL checking and custom
666 purpose or trust settings) for functions which only use X509_STORE_CTX
667 internally such as S/MIME.
669 Modify X509_STORE_CTX_purpose_inherit() so it only sets purposes and
670 trust settings if they are not set in X509_STORE. This allows X509_STORE
671 purposes and trust (in S/MIME for example) to override any set by default.
673 Add command line options for CRL checking to smime, s_client and s_server
677 +) Initial CRL based revocation checking. If the CRL checking flag(s)
678 are set then the CRL is looked up in the X509_STORE structure and
679 its validity and signature checked, then if the certificate is found
680 in the CRL the verify fails with a revoked error.
682 Various new CRL related callbacks added to X509_STORE_CTX structure.
684 Command line options added to 'verify' application to support this.
686 This needs some additional work, such as being able to handle multiple
687 CRLs with different times, extension based lookup (rather than just
688 by subject name) and ultimately more complete V2 CRL extension
692 +) Add a general user interface API (crypto/ui/). This is designed
693 to replace things like des_read_password and friends (backward
694 compatibility functions using this new API are provided).
695 The purpose is to remove prompting functions from the DES code
696 section as well as provide for prompting through dialog boxes in
697 a window system and the like.
700 *) Fix various bugs related to DSA S/MIME verification. Handle missing
701 parameters in DSA public key structures and return an error in the
702 DSA routines if parameters are absent.
705 *) In versions up to 0.9.6, RAND_file_name() resorted to file ".rnd"
706 in the current directory if neither $RANDFILE nor $HOME was set.
707 RAND_file_name() in 0.9.6a returned NULL in this case. This has
708 caused some confusion to Windows users who haven't defined $HOME.
709 Thus RAND_file_name() is changed again: e_os.h can define a
710 DEFAULT_HOME, which will be used if $HOME is not set.
711 For Windows, we use "C:"; on other platforms, we still require
712 environment variables.
714 +) Add "ex_data" support to ENGINE so implementations can add state at a
715 per-structure level rather than having to store it globally.
718 +) Make it possible for ENGINE structures to be copied when retrieved by
719 ENGINE_by_id() if the ENGINE specifies a new flag: ENGINE_FLAGS_BY_ID_COPY.
720 This causes the "original" ENGINE structure to act like a template,
721 analogous to the RSA vs. RSA_METHOD type of separation. Because of this
722 operational state can be localised to each ENGINE structure, despite the
723 fact they all share the same "methods". New ENGINE structures returned in
724 this case have no functional references and the return value is the single
725 structural reference. This matches the single structural reference returned
726 by ENGINE_by_id() normally, when it is incremented on the pre-existing
730 +) Fix ASN1 decoder when decoding type ANY and V_ASN1_OTHER: since this
731 needs to match any other type at all we need to manually clear the
735 +) Changes to the "openssl engine" utility to include;
736 - verbosity levels ('-v', '-vv', and '-vvv') that provide information
737 about an ENGINE's available control commands.
738 - executing control commands from command line arguments using the
739 '-pre' and '-post' switches. '-post' is only used if '-t' is
740 specified and the ENGINE is successfully initialised. The syntax for
741 the individual commands are colon-separated, for example;
742 openssl engine chil -pre FORK_CHECK:0 -pre SO_PATH:/lib/test.so
745 +) New dynamic control command support for ENGINEs. ENGINEs can now
746 declare their own commands (numbers), names (strings), descriptions,
747 and input types for run-time discovery by calling applications. A
748 subset of these commands are implicitly classed as "executable"
749 depending on their input type, and only these can be invoked through
750 the new string-based API function ENGINE_ctrl_cmd_string(). (Eg. this
751 can be based on user input, config files, etc). The distinction is
752 that "executable" commands cannot return anything other than a boolean
753 result and can only support numeric or string input, whereas some
754 discoverable commands may only be for direct use through
755 ENGINE_ctrl(), eg. supporting the exchange of binary data, function
756 pointers, or other custom uses. The "executable" commands are to
757 support parameterisations of ENGINE behaviour that can be
758 unambiguously defined by ENGINEs and used consistently across any
759 OpenSSL-based application. Commands have been added to all the
760 existing hardware-supporting ENGINEs, noticeably "SO_PATH" to allow
761 control over shared-library paths without source code alterations.
764 +) Changed all ENGINE implementations to dynamically allocate their
765 ENGINEs rather than declaring them statically. Apart from this being
766 necessary with the removal of the ENGINE_FLAGS_MALLOCED distinction,
767 this also allows the implementations to compile without using the
768 internal engine_int.h header.
771 +) Minor adjustment to "rand" code. RAND_get_rand_method() now returns a
772 'const' value. Any code that should be able to modify a RAND_METHOD
773 should already have non-const pointers to it (ie. they should only
774 modify their own ones).
777 +) Made a variety of little tweaks to the ENGINE code.
778 - "atalla" and "ubsec" string definitions were moved from header files
779 to C code. "nuron" string definitions were placed in variables
780 rather than hard-coded - allowing parameterisation of these values
781 later on via ctrl() commands.
782 - Removed unused "#if 0"'d code.
783 - Fixed engine list iteration code so it uses ENGINE_free() to release
784 structural references.
785 - Constified the RAND_METHOD element of ENGINE structures.
786 - Constified various get/set functions as appropriate and added
787 missing functions (including a catch-all ENGINE_cpy that duplicates
788 all ENGINE values onto a new ENGINE except reference counts/state).
789 - Removed NULL parameter checks in get/set functions. Setting a method
790 or function to NULL is a way of cancelling out a previously set
791 value. Passing a NULL ENGINE parameter is just plain stupid anyway
792 and doesn't justify the extra error symbols and code.
793 - Deprecate the ENGINE_FLAGS_MALLOCED define and move the area for
794 flags from engine_int.h to engine.h.
795 - Changed prototypes for ENGINE handler functions (init(), finish(),
796 ctrl(), key-load functions, etc) to take an (ENGINE*) parameter.
799 *) Move 'if (!initialized) RAND_poll()' into regions protected by
800 CRYPTO_LOCK_RAND. This is not strictly necessary, but avoids
801 having multiple threads call RAND_poll() concurrently.
804 *) In crypto/rand/md_rand.c, replace 'add_do_not_lock' flag by a
805 combination of a flag and a thread ID variable.
806 Otherwise while one thread is in ssleay_rand_bytes (which sets the
807 flag), *other* threads can enter ssleay_add_bytes without obeying
808 the CRYPTO_LOCK_RAND lock (and may even illegally release the lock
809 that they do not hold after the first thread unsets add_do_not_lock).
812 +) Implement binary inversion algorithm for BN_mod_inverse in addition
813 to the algorithm using long division. The binary algorithm can be
814 used only if the modulus is odd. On 32-bit systems, it is faster
815 only for relatively small moduli (roughly 20-30% for 128-bit moduli,
816 roughly 5-15% for 256-bit moduli), so we use it only for moduli
817 up to 450 bits. In 64-bit environments, the binary algorithm
818 appears to be advantageous for much longer moduli; here we use it
819 for moduli up to 2048 bits.
822 *) Change bctest again: '-x' expressions are not available in all
826 -) OpenSSL 0.9.6a released [5 Apr 2001]
828 *) Fix a couple of memory leaks in PKCS7_dataDecode()
829 [Steve Henson, reported by Heyun Zheng <hzheng@atdsprint.com>]
831 *) Change Configure and Makefiles to provide EXE_EXT, which will contain
832 the default extension for executables, if any. Also, make the perl
833 scripts that use symlink() to test if it really exists and use "cp"
834 if it doesn't. All this made OpenSSL compilable and installable in
838 +) Rewrite CHOICE field setting in ASN1_item_ex_d2i(). The old code
839 could not support the combine flag in choice fields.
842 -) Fix for asn1_GetSequence() for indefinite length constructed data.
843 If SEQUENCE is length is indefinite just set c->slen to the total
844 amount of data available.
845 [Steve Henson, reported by shige@FreeBSD.org]
846 [This change does not apply to 0.9.7.]
848 *) Change bctest to avoid here-documents inside command substitution
849 (workaround for FreeBSD /bin/sh bug).
850 For compatibility with Ultrix, avoid shell functions (introduced
851 in the bctest version that searches along $PATH).
854 *) Rename 'des_encrypt' to 'des_encrypt1'. This avoids the clashes
855 with des_encrypt() defined on some operating systems, like Solaris
859 *) Check the result of RSA-CRT (see D. Boneh, R. DeMillo, R. Lipton:
860 On the Importance of Eliminating Errors in Cryptographic
861 Computations, J. Cryptology 14 (2001) 2, 101-119,
862 http://theory.stanford.edu/~dabo/papers/faults.ps.gz).
865 *) MIPS assembler BIGNUM division bug fix.
868 *) Disabled incorrect Alpha assembler code.
871 -) Fix PKCS#7 decode routines so they correctly update the length
872 after reading an EOC for the EXPLICIT tag.
874 [This change does not apply to 0.9.7.]
876 *) Fix bug in PKCS#12 key generation routines. This was triggered
877 if a 3DES key was generated with a 0 initial byte. Include
878 PKCS12_BROKEN_KEYGEN compilation option to retain the old
879 (but broken) behaviour.
882 *) Enhance bctest to search for a working bc along $PATH and print
884 [Tim Rice <tim@multitalents.net> via Richard Levitte]
886 +) Add a 'copy_extensions' option to the 'ca' utility. This copies
887 extensions from a certificate request to the certificate.
890 +) Allow multiple 'certopt' and 'nameopt' options to be separated
891 by commas. Add 'namopt' and 'certopt' options to the 'ca' config
892 file: this allows the display of the certificate about to be
893 signed to be customised, to allow certain fields to be included
894 or excluded and extension details. The old system didn't display
895 multicharacter strings properly, omitted fields not in the policy
896 and couldn't display additional details such as extensions.
899 *) Fix memory leaks in err.c: free err_data string if necessary;
900 don't write to the wrong index in ERR_set_error_data.
903 +) Function EC_POINTs_mul for simultaneous scalar multiplication
904 of an arbitrary number of elliptic curve points, optionally
905 including the generator defined for the EC_GROUP.
906 EC_POINT_mul is a simple wrapper function for the typical case
907 that the point list has just one item (besides the optional
911 +) First EC_METHODs for curves over GF(p):
913 EC_GFp_simple_method() uses the basic BN_mod_mul and BN_mod_sqr
914 operations and provides various method functions that can also
915 operate with faster implementations of modular arithmetic.
917 EC_GFp_mont_method() reuses most functions that are part of
918 EC_GFp_simple_method, but uses Montgomery arithmetic.
920 [Bodo Moeller; point addition and point doubling
921 implementation directly derived from source code provided by
922 Lenka Fibikova <fibikova@exp-math.uni-essen.de>]
924 +) Framework for elliptic curves (crypto/ec/ec.h, crypto/ec/ec_lcl.h,
927 Curves are EC_GROUP objects (with an optional group generator)
928 based on EC_METHODs that are built into the library.
930 Points are EC_POINT objects based on EC_GROUP objects.
932 Most of the framework would be able to handle curves over arbitrary
933 finite fields, but as there are no obvious types for fields other
934 than GF(p), some functions are limited to that for now.
937 +) Add the -HTTP option to s_server. It is similar to -WWW, but requires
938 that the file contains a complete HTTP response.
941 +) Add the ec directory to mkdef.pl and mkfiles.pl. In mkdef.pl
942 change the def and num file printf format specifier from "%-40sXXX"
943 to "%-39s XXX". The latter will always guarantee a space after the
944 field while the former will cause them to run together if the field
945 is 40 of more characters long.
948 +) Constify the cipher and digest 'method' functions and structures
949 and modify related functions to take constant EVP_MD and EVP_CIPHER
953 *) Implement ssl23_peek (analogous to ssl23_read), which previously
957 *) Replace rdtsc with _emit statements for VC++ version 5.
958 [Jeremy Cooper <jeremy@baymoo.org>]
960 +) Hide BN_CTX structure details in bn_lcl.h instead of publishing them
961 in <openssl/bn.h>. Also further increase BN_CTX_NUM to 32.
964 +) Modify EVP_Digest*() routines so they now return values. Although the
965 internal software routines can never fail additional hardware versions
969 +) Clean up crypto/err/err.h and change some error codes to avoid conflicts:
971 Previously ERR_R_FATAL was too small and coincided with ERR_LIB_PKCS7
972 (= ERR_R_PKCS7_LIB); it is now 64 instead of 32.
975 ERR_R_NESTED_ASN1_ERROR
977 ERR_R_MISSING_ASN1_EOS
978 were 4 .. 9, conflicting with
979 ERR_LIB_RSA (= ERR_R_RSA_LIB)
981 ERR_LIB_PEM (= ERR_R_PEM_LIB).
982 They are now 58 .. 63 (i.e., just below ERR_R_FATAL).
984 Add new error code 'ERR_R_INTERNAL_ERROR'.
987 +) Don't overuse locks in crypto/err/err.c: For data retrieval, CRYPTO_r_lock
991 +) New option '-subj arg' for 'openssl req' and 'openssl ca'. This
992 sets the subject name for a new request or supersedes the
993 subject name in a given request. Formats that can be parsed are
994 'CN=Some Name, OU=myOU, C=IT'
996 'CN=Some Name/OU=myOU/C=IT'.
998 Add options '-batch' and '-verbose' to 'openssl req'.
999 [Massimiliano Pala <madwolf@hackmasters.net>]
1001 *) Make it possible to reuse SSLv2 sessions.
1004 +) Introduce the possibility to access global variables through
1005 functions on platform were that's the best way to handle exporting
1006 global variables in shared libraries. To enable this functionality,
1007 one must configure with "EXPORT_VAR_AS_FN" or defined the C macro
1008 "OPENSSL_EXPORT_VAR_AS_FUNCTION" in crypto/opensslconf.h (the latter
1009 is normally done by Configure or something similar).
1011 To implement a global variable, use the macro OPENSSL_IMPLEMENT_GLOBAL
1012 in the source file (foo.c) like this:
1014 OPENSSL_IMPLEMENT_GLOBAL(int,foo)=1;
1015 OPENSSL_IMPLEMENT_GLOBAL(double,bar);
1017 To declare a global variable, use the macros OPENSSL_DECLARE_GLOBAL
1018 and OPENSSL_GLOBAL_REF in the header file (foo.h) like this:
1020 OPENSSL_DECLARE_GLOBAL(int,foo);
1021 #define foo OPENSSL_GLOBAL_REF(foo)
1022 OPENSSL_DECLARE_GLOBAL(double,bar);
1023 #define bar OPENSSL_GLOBAL_REF(bar)
1025 The #defines are very important, and therefore so is including the
1026 header file everywhere where the defined globals are used.
1028 The macro OPENSSL_EXPORT_VAR_AS_FUNCTION also affects the definition
1029 of ASN.1 items, but that structure is a bit different.
1031 The largest change is in util/mkdef.pl which has been enhanced with
1032 better and easier to understand logic to choose which symbols should
1033 go into the Windows .def files as well as a number of fixes and code
1034 cleanup (among others, algorithm keywords are now sorted
1035 lexicographically to avoid constant rewrites).
1038 *) In copy_email() check for >= 0 as a return value for
1039 X509_NAME_get_index_by_NID() since 0 is a valid index.
1040 [Steve Henson reported by Massimiliano Pala <madwolf@opensca.org>]
1042 +) In BN_div() keep a copy of the sign of 'num' before writing the
1043 result to 'rm' because if rm==num the value will be overwritten
1044 and produce the wrong result if 'num' is negative: this caused
1045 problems with BN_mod() and BN_nnmod().
1048 +) Function OCSP_request_verify(). This checks the signature on an
1049 OCSP request and verifies the signer certificate. The signer
1050 certificate is just checked for a generic purpose and OCSP request
1054 +) Add OCSP_check_validity() function to check the validity of OCSP
1055 responses. OCSP responses are prepared in real time and may only
1056 be a few seconds old. Simply checking that the current time lies
1057 between thisUpdate and nextUpdate max reject otherwise valid responses
1058 caused by either OCSP responder or client clock inaccuracy. Instead
1059 we allow thisUpdate and nextUpdate to fall within a certain period of
1060 the current time. The age of the response can also optionally be
1061 checked. Two new options -validity_period and -status_age added to
1065 +) If signature or public key algorithm is unrecognized print out its
1066 OID rather that just UNKNOWN.
1069 *) Avoid coredump with unsupported or invalid public keys by checking if
1070 X509_get_pubkey() fails in PKCS7_verify(). Fix memory leak when
1071 PKCS7_verify() fails with non detached data.
1074 +) Change OCSP_cert_to_id() to tolerate a NULL subject certificate and
1075 OCSP_cert_id_new() a NULL serialNumber. This allows a partial certificate
1076 ID to be generated from the issuer certificate alone which can then be
1077 passed to OCSP_id_issuer_cmp().
1080 +) New compilation option ASN1_ITEM_FUNCTIONS. This causes the new
1081 ASN1 modules to export functions returning ASN1_ITEM pointers
1082 instead of the ASN1_ITEM structures themselves. This adds several
1083 new macros which allow the underlying ASN1 function/structure to
1084 be accessed transparently. As a result code should not use ASN1_ITEM
1085 references directly (such as &X509_it) but instead use the relevant
1086 macros (such as ASN1_ITEM_rptr(X509)). This option is to allow
1087 use of the new ASN1 code on platforms where exporting structures
1088 is problematical (for example in shared libraries) but exporting
1089 functions returning pointers to structures is not.
1092 +) Add support for overriding the generation of SSL/TLS session IDs.
1093 These callbacks can be registered either in an SSL_CTX or per SSL.
1094 The purpose of this is to allow applications to control, if they wish,
1095 the arbitrary values chosen for use as session IDs, particularly as it
1096 can be useful for session caching in multiple-server environments. A
1097 command-line switch for testing this (and any client code that wishes
1098 to use such a feature) has been added to "s_server".
1099 [Geoff Thorpe, Lutz Jaenicke]
1101 +) Modify mkdef.pl to recognise and parse preprocessor conditionals
1102 of the form '#if defined(...) || defined(...) || ...' and
1103 '#if !defined(...) && !defined(...) && ...'. This also avoids
1104 the growing number of special cases it was previously handling.
1107 *) Don't use getenv in library functions when run as setuid/setgid.
1108 New function OPENSSL_issetugid().
1111 +) Make all configuration macros available for application by making
1112 sure they are available in opensslconf.h, by giving them names starting
1113 with "OPENSSL_" to avoid conflicts with other packages and by making
1114 sure e_os2.h will cover all platform-specific cases together with
1116 Additionally, it is now possible to define configuration/platform-
1117 specific names (called "system identities"). In the C code, these
1118 are prefixed with "OPENSSL_SYSNAME_". e_os2.h will create another
1119 macro with the name beginning with "OPENSSL_SYS_", which is determined
1120 from "OPENSSL_SYSNAME_*" or compiler-specific macros depending on
1124 +) New option -set_serial to 'req' and 'x509' this allows the serial
1125 number to use to be specified on the command line. Previously self
1126 signed certificates were hard coded with serial number 0 and the
1127 CA options of 'x509' had to use a serial number in a file which was
1131 *) Avoid false positives in memory leak detection code (crypto/mem_dbg.c)
1132 due to incorrect handling of multi-threading:
1134 1. Fix timing glitch in the MemCheck_off() portion of CRYPTO_mem_ctrl().
1136 2. Fix logical glitch in is_MemCheck_on() aka CRYPTO_is_mem_check_on().
1138 3. Count how many times MemCheck_off() has been called so that
1139 nested use can be treated correctly. This also avoids
1140 inband-signalling in the previous code (which relied on the
1141 assumption that thread ID 0 is impossible).
1144 +) New options to 'ca' utility to support V2 CRL entry extensions.
1145 Currently CRL reason, invalidity date and hold instruction are
1146 supported. Add new CRL extensions to V3 code and some new objects.
1149 *) Add "-rand" option also to s_client and s_server.
1152 +) New function EVP_CIPHER_CTX_set_padding() this is used to
1153 disable standard block padding (aka PKCS#5 padding) in the EVP
1154 API, which was previously mandatory. This means that the data is
1155 not padded in any way and so the total length much be a multiple
1156 of the block size, otherwise an error occurs.
1159 +) Initial (incomplete) OCSP SSL support.
1162 *) Fix CPU detection on Irix 6.x.
1163 [Kurt Hockenbury <khockenb@stevens-tech.edu> and
1164 "Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
1166 +) New function OCSP_parse_url(). This splits up a URL into its host,
1167 port and path components: primarily to parse OCSP URLs. New -url
1168 option to ocsp utility.
1171 +) New nonce behavior. The return value of OCSP_check_nonce() now
1172 reflects the various checks performed. Applications can decide
1173 whether to tolerate certain situations such as an absent nonce
1174 in a response when one was present in a request: the ocsp application
1175 just prints out a warning. New function OCSP_add1_basic_nonce()
1176 this is to allow responders to include a nonce in a response even if
1177 the request is nonce-less.
1180 *) Fix X509_NAME bug which produced incorrect encoding if X509_NAME
1183 [This change does not apply to 0.9.7.]
1185 *) Use the cached encoding of an X509_NAME structure rather than
1186 copying it. This is apparently the reason for the libsafe "errors"
1187 but the code is actually correct.
1190 +) Disable stdin buffering in load_cert (apps/apps.c) so that no certs are
1191 skipped when using openssl x509 multiple times on a single input file,
1192 e.g. "(openssl x509 -out cert1; openssl x509 -out cert2) <certs".
1195 +) Make ASN1_UTCTIME_set_string() and ASN1_GENERALIZEDTIME_set_string()
1196 set string type: to handle setting ASN1_TIME structures. Fix ca
1197 utility to correctly initialize revocation date of CRLs.
1200 +) New option SSL_OP_CIPHER_SERVER_PREFERENCE allows the server to override
1201 the clients preferred ciphersuites and rather use its own preferences.
1202 Should help to work around M$ SGC (Server Gated Cryptography) bug in
1203 Internet Explorer by ensuring unchanged hash method during stepup.
1204 (Also replaces the broken/deactivated SSL_OP_NON_EXPORT_FIRST option.)
1207 +) Make mkdef.pl recognise all DECLARE_ASN1 macros, change rijndael
1208 to aes and add a new 'exist' option to print out symbols that don't
1212 +) Additional options to ocsp utility to allow flags to be set and
1213 additional certificates supplied.
1216 +) Add the option -VAfile to 'openssl ocsp', so the user can give the
1217 OCSP client a number of certificate to only verify the response
1221 *) Add new function BN_rand_range(), and fix DSA_sign_setup() to prevent
1222 Bleichenbacher's DSA attack.
1223 Extend BN_[pseudo_]rand: As before, top=1 forces the highest two bits
1224 to be set and top=0 forces the highest bit to be set; top=-1 is new
1225 and leaves the highest bit random.
1226 [Ulf Moeller, Bodo Moeller]
1228 +) Update Rijndael code to version 3.0 and change EVP AES ciphers to
1229 handle the new API. Currently only ECB, CBC modes supported. Add new
1230 AES OIDs. Add TLS AES ciphersuites as described in the "AES Ciphersuites
1231 for TLS" draft-ietf-tls-ciphersuite-03.txt.
1232 [Ben Laurie, Steve Henson]
1234 *) In the NCONF_...-based implementations for CONF_... queries
1235 (crypto/conf/conf_lib.c), if the input LHASH is NULL, avoid using
1236 a temporary CONF structure with the data component set to NULL
1237 (which gives segmentation faults in lh_retrieve).
1238 Instead, use NULL for the CONF pointer in CONF_get_string and
1239 CONF_get_number (which may use environment variables) and directly
1240 return NULL from CONF_get_section.
1243 *) Fix potential buffer overrun for EBCDIC.
1246 +) New function OCSP_copy_nonce() to copy nonce value (if present) from
1247 request to response.
1250 +) Functions for OCSP responders. OCSP_request_onereq_count(),
1251 OCSP_request_onereq_get0(), OCSP_onereq_get0_id() and OCSP_id_get0_info()
1252 extract information from a certificate request. OCSP_response_create()
1253 creates a response and optionally adds a basic response structure.
1254 OCSP_basic_add1_status() adds a complete single response to a basic
1255 response and returns the OCSP_SINGLERESP structure just added (to allow
1256 extensions to be included for example). OCSP_basic_add1_cert() adds a
1257 certificate to a basic response and OCSP_basic_sign() signs a basic
1258 response with various flags. New helper functions ASN1_TIME_check()
1259 (checks validity of ASN1_TIME structure) and ASN1_TIME_to_generalizedtime()
1260 (converts ASN1_TIME to GeneralizedTime).
1263 +) Various new functions. EVP_Digest() combines EVP_Digest{Init,Update,Final}()
1264 in a single operation. X509_get0_pubkey_bitstr() extracts the public_key
1265 structure from a certificate. X509_pubkey_digest() digests the public_key
1266 contents: this is used in various key identifiers.
1269 *) Tolerate nonRepudiation as being valid for S/MIME signing and certSign
1270 keyUsage if basicConstraints absent for a CA.
1273 *) Make SMIME_write_PKCS7() write mail header values with a format that
1274 is more generally accepted (no spaces before the semicolon), since
1275 some programs can't parse those values properly otherwise. Also make
1276 sure BIO's that break lines after each write do not create invalid
1280 +) Make sk_sort() tolerate a NULL argument.
1281 [Steve Henson reported by Massimiliano Pala <madwolf@comune.modena.it>]
1283 +) New OCSP verify flag OCSP_TRUSTOTHER. When set the "other" certificates
1284 passed by the function are trusted implicitly. If any of them signed the
1285 response then it is assumed to be valid and is not verified.
1288 -) Make the CRL encoding routines work with empty SEQUENCE OF. The
1289 macros previously used would not encode an empty SEQUENCE OF
1290 and break the signature.
1292 [This change does not apply to 0.9.7.]
1294 *) Zero the premaster secret after deriving the master secret in
1298 +) In PKCS7_set_type() initialise content_type in PKCS7_ENC_CONTENT
1299 to data. This was previously part of the PKCS7 ASN1 code. This
1300 was causing problems with OpenSSL created PKCS#12 and PKCS#7 structures.
1301 [Steve Henson, reported by Kenneth R. Robinette
1302 <support@securenetterm.com>]
1304 +) Add CRYPTO_push_info() and CRYPTO_pop_info() calls to new ASN1
1305 routines: without these tracing memory leaks is very painful.
1306 Fix leaks in PKCS12 and PKCS7 routines.
1309 *) Add some EVP_add_digest_alias registrations (as found in
1310 OpenSSL_add_all_digests()) to SSL_library_init()
1311 aka OpenSSL_add_ssl_algorithms(). This provides improved
1312 compatibility with peers using X.509 certificates
1313 with unconventional AlgorithmIdentifier OIDs.
1316 *) Fix for Irix with NO_ASM.
1317 ["Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
1319 *) ./config script fixes.
1320 [Ulf Moeller, Richard Levitte]
1322 +) Make X509_time_adj() cope with the new behaviour of ASN1_TIME_new().
1323 Previously it initialised the 'type' argument to V_ASN1_UTCTIME which
1324 effectively meant GeneralizedTime would never be used. Now it
1325 is initialised to -1 but X509_time_adj() now has to check the value
1326 and use ASN1_TIME_set() if the value is not V_ASN1_UTCTIME or
1327 V_ASN1_GENERALIZEDTIME, without this it always uses GeneralizedTime.
1328 [Steve Henson, reported by Kenneth R. Robinette
1329 <support@securenetterm.com>]
1331 +) Fixes to BN_to_ASN1_INTEGER when bn is zero. This would previously
1332 result in a zero length in the ASN1_INTEGER structure which was
1333 not consistent with the structure when d2i_ASN1_INTEGER() was used
1334 and would cause ASN1_INTEGER_cmp() to fail. Enhance s2i_ASN1_INTEGER()
1335 to cope with hex and negative integers. Fix bug in i2a_ASN1_INTEGER()
1336 where it did not print out a minus for negative ASN1_INTEGER.
1339 *) Fix 'openssl passwd -1'.
1342 +) Add summary printout to ocsp utility. The various functions which
1343 convert status values to strings have been renamed to:
1344 OCSP_response_status_str(), OCSP_cert_status_str() and
1345 OCSP_crl_reason_str() and are no longer static. New options
1346 to verify nonce values and to disable verification. OCSP response
1347 printout format cleaned up.
1350 +) Add additional OCSP certificate checks. These are those specified
1351 in RFC2560. This consists of two separate checks: the CA of the
1352 certificate being checked must either be the OCSP signer certificate
1353 or the issuer of the OCSP signer certificate. In the latter case the
1354 OCSP signer certificate must contain the OCSP signing extended key
1355 usage. This check is performed by attempting to match the OCSP
1356 signer or the OCSP signer CA to the issuerNameHash and issuerKeyHash
1357 in the OCSP_CERTID structures of the response.
1360 +) Initial OCSP certificate verification added to OCSP_basic_verify()
1361 and related routines. This uses the standard OpenSSL certificate
1362 verify routines to perform initial checks (just CA validity) and
1363 to obtain the certificate chain. Then additional checks will be
1364 performed on the chain. Currently the root CA is checked to see
1365 if it is explicitly trusted for OCSP signing. This is used to set
1366 a root CA as a global signing root: that is any certificate that
1367 chains to that CA is an acceptable OCSP signing certificate.
1370 +) New '-extfile ...' option to 'openssl ca' for reading X.509v3
1371 extensions from a separate configuration file.
1372 As when reading extensions from the main configuration file,
1373 the '-extensions ...' option may be used for specifying the
1375 [Massimiliano Pala <madwolf@comune.modena.it>]
1377 *) Change PKCS12_key_gen_asc() so it can cope with non null
1378 terminated strings whose length is passed in the passlen
1379 parameter, for example from PEM callbacks. This was done
1380 by adding an extra length parameter to asc2uni().
1381 [Steve Henson, reported by <oddissey@samsung.co.kr>]
1383 +) New OCSP utility. Allows OCSP requests to be generated or
1384 read. The request can be sent to a responder and the output
1385 parsed, outputed or printed in text form. Not complete yet:
1386 still needs to check the OCSP response validity.
1389 +) New subcommands for 'openssl ca':
1390 'openssl ca -status <serial>' prints the status of the cert with
1391 the given serial number (according to the index file).
1392 'openssl ca -updatedb' updates the expiry status of certificates
1394 [Massimiliano Pala <madwolf@comune.modena.it>]
1396 +) New '-newreq-nodes' command option to CA.pl. This is like
1397 '-newreq', but calls 'openssl req' with the '-nodes' option
1398 so that the resulting key is not encrypted.
1399 [Damien Miller <djm@mindrot.org>]
1401 +) New configuration for the GNU Hurd.
1402 [Jonathan Bartlett <johnnyb@wolfram.com> via Richard Levitte]
1404 +) Initial code to implement OCSP basic response verify. This
1405 is currently incomplete. Currently just finds the signer's
1406 certificate and verifies the signature on the response.
1409 +) New SSLeay_version code SSLEAY_DIR to determine the compiled-in
1410 value of OPENSSLDIR. This is available via the new '-d' option
1411 to 'openssl version', and is also included in 'openssl version -a'.
1414 *) Fix C code generated by 'openssl dsaparam -C': If a BN_bin2bn
1415 call failed, free the DSA structure.
1418 +) Allowing defining memory allocation callbacks that will be given
1419 file name and line number information in additional arguments
1420 (a const char* and an int). The basic functionality remains, as
1421 well as the original possibility to just replace malloc(),
1422 realloc() and free() by functions that do not know about these
1423 additional arguments. To register and find out the current
1424 settings for extended allocation functions, the following
1425 functions are provided:
1427 CRYPTO_set_mem_ex_functions
1428 CRYPTO_set_locked_mem_ex_functions
1429 CRYPTO_get_mem_ex_functions
1430 CRYPTO_get_locked_mem_ex_functions
1432 These work the same way as CRYPTO_set_mem_functions and friends.
1433 CRYPTO_get_[locked_]mem_functions now writes 0 where such an
1434 extended allocation function is enabled.
1435 Similarly, CRYPTO_get_[locked_]mem_ex_functions writes 0 where
1436 a conventional allocation function is enabled.
1437 [Richard Levitte, Bodo Moeller]
1439 *) Fix to uni2asc() to cope with zero length Unicode strings.
1440 These are present in some PKCS#12 files.
1443 +) Finish off removing the remaining LHASH function pointer casts.
1444 There should no longer be any prototype-casting required when using
1445 the LHASH abstraction, and any casts that remain are "bugs". See
1446 the callback types and macros at the head of lhash.h for details
1447 (and "OBJ_cleanup" in crypto/objects/obj_dat.c as an example).
1450 +) Add automatic query of EGD sockets in RAND_poll() for the unix variant.
1451 If /dev/[u]random devices are not available or do not return enough
1452 entropy, EGD style sockets (served by EGD or PRNGD) will automatically
1454 The locations /var/run/egd-pool, /dev/egd-pool, /etc/egd-pool, and
1455 /etc/entropy will be queried once each in this sequence, quering stops
1456 when enough entropy was collected without querying more sockets.
1459 +) Change the Unix RAND_poll() variant to be able to poll several
1460 random devices, as specified by DEVRANDOM, until a sufficient amount
1461 of data has been collected. We spend at most 10 ms on each file
1462 (select timeout) and read in non-blocking mode. DEVRANDOM now
1463 defaults to the list "/dev/urandom", "/dev/random", "/dev/srandom"
1464 (previously it was just the string "/dev/urandom"), so on typical
1465 platforms the 10 ms delay will never occur.
1466 Also separate out the Unix variant to its own file, rand_unix.c.
1467 For VMS, there's a currently-empty rand_vms.c.
1470 +) Move OCSP client related routines to ocsp_cl.c. These
1471 provide utility functions which an application needing
1472 to issue a request to an OCSP responder and analyse the
1473 response will typically need: as opposed to those which an
1474 OCSP responder itself would need which will be added later.
1476 OCSP_request_sign() signs an OCSP request with an API similar
1477 to PKCS7_sign(). OCSP_response_status() returns status of OCSP
1478 response. OCSP_response_get1_basic() extracts basic response
1479 from response. OCSP_resp_find_status(): finds and extracts status
1480 information from an OCSP_CERTID structure (which will be created
1481 when the request structure is built). These are built from lower
1482 level functions which work on OCSP_SINGLERESP structures but
1483 wont normally be used unless the application wishes to examine
1484 extensions in the OCSP response for example.
1486 Replace nonce routines with a pair of functions.
1487 OCSP_request_add1_nonce() adds a nonce value and optionally
1488 generates a random value. OCSP_check_nonce() checks the
1489 validity of the nonce in an OCSP response.
1492 +) Change function OCSP_request_add() to OCSP_request_add0_id().
1493 This doesn't copy the supplied OCSP_CERTID and avoids the
1494 need to free up the newly created id. Change return type
1495 to OCSP_ONEREQ to return the internal OCSP_ONEREQ structure.
1496 This can then be used to add extensions to the request.
1497 Deleted OCSP_request_new(), since most of its functionality
1498 is now in OCSP_REQUEST_new() (and the case insensitive name
1499 clash) apart from the ability to set the request name which
1500 will be added elsewhere.
1503 +) Update OCSP API. Remove obsolete extensions argument from
1504 various functions. Extensions are now handled using the new
1505 OCSP extension code. New simple OCSP HTTP function which
1506 can be used to send requests and parse the response.
1509 +) Fix the PKCS#7 (S/MIME) code to work with new ASN1. Two new
1510 ASN1_ITEM structures help with sign and verify. PKCS7_ATTR_SIGN
1511 uses the special reorder version of SET OF to sort the attributes
1512 and reorder them to match the encoded order. This resolves a long
1513 standing problem: a verify on a PKCS7 structure just after signing
1514 it used to fail because the attribute order did not match the
1515 encoded order. PKCS7_ATTR_VERIFY does not reorder the attributes:
1516 it uses the received order. This is necessary to tolerate some broken
1517 software that does not order SET OF. This is handled by encoding
1518 as a SEQUENCE OF but using implicit tagging (with UNIVERSAL class)
1519 to produce the required SET OF.
1522 +) Have mk1mf.pl generate the macros OPENSSL_BUILD_SHLIBCRYPTO and
1523 OPENSSL_BUILD_SHLIBSSL and use them appropriately in the header
1524 files to get correct declarations of the ASN.1 item variables.
1527 +) Rewrite of PKCS#12 code to use new ASN1 functionality. Replace many
1528 PKCS#12 macros with real functions. Fix two unrelated ASN1 bugs:
1529 asn1_check_tlen() would sometimes attempt to use 'ctx' when it was
1530 NULL and ASN1_TYPE was not dereferenced properly in asn1_ex_c2i().
1531 New ASN1 macro: DECLARE_ASN1_ITEM() which just declares the relevant
1532 ASN1_ITEM and no wrapper functions.
1535 +) New functions or ASN1_item_d2i_fp() and ASN1_item_d2i_bio(). These
1536 replace the old function pointer based I/O routines. Change most of
1537 the *_d2i_bio() and *_d2i_fp() functions to use these.
1540 +) Enhance mkdef.pl to be more accepting about spacing in C preprocessor
1541 lines, recognice more "algorithms" that can be deselected, and make
1542 it complain about algorithm deselection that isn't recognised.
1545 +) New ASN1 functions to handle dup, sign, verify, digest, pack and
1546 unpack operations in terms of ASN1_ITEM. Modify existing wrappers
1547 to use new functions. Add NO_ASN1_OLD which can be set to remove
1548 some old style ASN1 functions: this can be used to determine if old
1549 code will still work when these eventually go away.
1552 +) New extension functions for OCSP structures, these follow the
1553 same conventions as certificates and CRLs.
1556 +) New function X509V3_add1_i2d(). This automatically encodes and
1557 adds an extension. Its behaviour can be customised with various
1558 flags to append, replace or delete. Various wrappers added for
1559 certifcates and CRLs.
1562 +) Fix to avoid calling the underlying ASN1 print routine when
1563 an extension cannot be parsed. Correct a typo in the
1564 OCSP_SERVICELOC extension. Tidy up print OCSP format.
1567 *) Increase s2->wbuf allocation by one byte in ssl2_new (ssl/s2_lib.c).
1568 Otherwise do_ssl_write (ssl/s2_pkt.c) will write beyond buffer limits
1569 when writing a 32767 byte record.
1570 [Bodo Moeller; problem reported by Eric Day <eday@concentric.net>]
1572 *) In RSA_eay_public_{en,ed}crypt and RSA_eay_mod_exp (rsa_eay.c),
1573 obtain lock CRYPTO_LOCK_RSA before setting rsa->_method_mod_{n,p,q}.
1575 (RSA objects have a reference count access to which is protected
1576 by CRYPTO_LOCK_RSA [see rsa_lib.c, s3_srvr.c, ssl_cert.c, ssl_rsa.c],
1577 so they are meant to be shared between threads.)
1578 [Bodo Moeller, Geoff Thorpe; original patch submitted by
1579 "Reddie, Steven" <Steven.Reddie@ca.com>]
1581 +) Make mkdef.pl parse some of the ASN1 macros and add apropriate
1582 entries for variables.
1585 *) Fix a deadlock in CRYPTO_mem_leaks().
1588 +) Add functionality to apps/openssl.c for detecting locking
1589 problems: As the program is single-threaded, all we have
1590 to do is register a locking callback using an array for
1591 storing which locks are currently held by the program.
1594 +) Use a lock around the call to CRYPTO_get_ex_new_index() in
1595 SSL_get_ex_data_X509_STORE_idx(), which is used in
1596 ssl_verify_cert_chain() and thus can be called at any time
1597 during TLS/SSL handshakes so that thread-safety is essential.
1598 Unfortunately, the ex_data design is not at all suited
1599 for multi-threaded use, so it probably should be abolished.
1602 +) Added Broadcom "ubsec" ENGINE to OpenSSL.
1603 [Broadcom, tweaked and integrated by Geoff Thorpe]
1605 +) Move common extension printing code to new function
1606 X509V3_print_extensions(). Reorganise OCSP print routines and
1607 implement some needed OCSP ASN1 functions. Add OCSP extensions.
1610 +) New function X509_signature_print() to remove duplication in some
1614 +) Add a special meaning when SET OF and SEQUENCE OF flags are both
1615 set (this was treated exactly the same as SET OF previously). This
1616 is used to reorder the STACK representing the structure to match the
1617 encoding. This will be used to get round a problem where a PKCS7
1618 structure which was signed could not be verified because the STACK
1619 order did not reflect the encoded order.
1622 +) Reimplement the OCSP ASN1 module using the new code.
1625 +) Update the X509V3 code to permit the use of an ASN1_ITEM structure
1626 for its ASN1 operations. The old style function pointers still exist
1627 for now but they will eventually go away.
1630 +) Merge in replacement ASN1 code from the ASN1 branch. This almost
1631 completely replaces the old ASN1 functionality with a table driven
1632 encoder and decoder which interprets an ASN1_ITEM structure describing
1633 the ASN1 module. Compatibility with the existing ASN1 API (i2d,d2i) is
1634 largely maintained. Almost all of the old asn1_mac.h macro based ASN1
1635 has also been converted to the new form.
1638 +) Change BN_mod_exp_recp so that negative moduli are tolerated
1639 (the sign is ignored). Similarly, ignore the sign in BN_MONT_CTX_set
1640 so that BN_mod_exp_mont and BN_mod_exp_mont_word work
1641 for negative moduli.
1644 +) Fix BN_uadd and BN_usub: Always return non-negative results instead
1645 of not touching the result's sign bit.
1648 +) BN_div bugfix: If the result is 0, the sign (res->neg) must not be
1652 +) Changed the LHASH code to use prototypes for callbacks, and created
1653 macros to declare and implement thin (optionally static) functions
1654 that provide type-safety and avoid function pointer casting for the
1655 type-specific callbacks.
1658 *) Use better test patterns in bntest.
1661 +) Added Kerberos Cipher Suites to be used with TLS, as written in
1663 [Veers Staats <staatsvr@asc.hpc.mil>,
1664 Jeffrey Altman <jaltman@columbia.edu>, via Richard Levitte]
1666 *) rand_win.c fix for Borland C.
1669 *) BN_rshift bugfix for n == 0.
1672 +) Reformat the FAQ so the different questions and answers can be divided
1673 in sections depending on the subject.
1676 +) Have the zlib compression code load ZLIB.DLL dynamically under
1680 +) New function BN_mod_sqrt for computing square roots modulo a prime
1681 (using the probabilistic Tonelli-Shanks algorithm unless
1682 p == 3 (mod 4) or p == 5 (mod 8), which are cases that can
1683 be handled deterministically).
1684 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
1686 *) Add a 'bctest' script that checks for some known 'bc' bugs
1687 so that 'make test' does not abort just because 'bc' is broken.
1690 *) Store verify_result within SSL_SESSION also for client side to
1691 avoid potential security hole. (Re-used sessions on the client side
1692 always resulted in verify_result==X509_V_OK, not using the original
1693 result of the server certificate verification.)
1696 +) Make BN_mod_inverse faster by explicitly handling small quotients
1697 in the Euclid loop. (Speed gain about 20% for small moduli [256 or
1698 512 bits], about 30% for larger ones [1024 or 2048 bits].)
1701 *) Fix ssl3_pending: If the record in s->s3->rrec is not of type
1702 SSL3_RT_APPLICATION_DATA, return 0.
1703 Similarly, change ssl2_pending to return 0 if SSL_in_init(s) is true.
1707 Both ssl2_peek and ssl3_peek, which were totally broken in earlier
1708 releases, have been re-implemented by renaming the previous
1709 implementations of ssl2_read and ssl3_read to ssl2_read_internal
1710 and ssl3_read_internal, respectively, and adding 'peek' parameters
1711 to them. The new ssl[23]_{read,peek} functions are calls to
1712 ssl[23]_read_internal with the 'peek' flag set appropriately.
1713 A 'peek' parameter has also been added to ssl3_read_bytes, which
1714 does the actual work for ssl3_read_internal.
1717 +) New function BN_kronecker.
1720 +) Fix BN_gcd so that it works on negative inputs; the result is
1721 positive unless both parameters are zero.
1722 Previously something reasonably close to an infinite loop was
1723 possible because numbers could be growing instead of shrinking
1724 in the implementation of Euclid's algorithm.
1727 +) Fix BN_is_word() and BN_is_one() macros to take into account the
1728 sign of the number in question.
1730 Fix BN_is_word(a,w) to work correctly for w == 0.
1732 The old BN_is_word(a,w) macro is now called BN_abs_is_word(a,w)
1733 because its test if the absolute value of 'a' equals 'w'.
1734 Note that BN_abs_is_word does *not* handle w == 0 reliably;
1735 it exists mostly for use in the implementations of BN_is_zero(),
1736 BN_is_one(), and BN_is_word().
1739 *) Initialise "ex_data" member of RSA/DSA/DH structures prior to calling
1740 the method-specific "init()" handler. Also clean up ex_data after
1741 calling the method-specific "finish()" handler. Previously, this was
1742 happening the other way round.
1745 +) New function BN_swap.
1748 +) Use BN_nnmod instead of BN_mod in crypto/bn/bn_exp.c so that
1749 the exponentiation functions are more likely to produce reasonable
1750 results on negative inputs.
1753 +) Change BN_mod_mul so that the result is always non-negative.
1754 Previously, it could be negative if one of the factors was negative;
1755 I don't think anyone really wanted that behaviour.
1758 +) Move BN_mod_... functions into new file crypto/bn/bn_mod.c
1759 (except for exponentiation, which stays in crypto/bn/bn_exp.c,
1760 and BN_mod_mul_reciprocal, which stays in crypto/bn/bn_recp.c)
1761 and add new functions:
1770 BN_mod_lshift1_quick
1774 These functions always generate non-negative results.
1776 BN_nnmod otherwise is like BN_mod (if BN_mod computes a remainder r
1777 such that |m| < r < 0, BN_nnmod will output rem + |m| instead).
1779 BN_mod_XXX_quick(r, a, [b,] m) generates the same result as
1780 BN_mod_XXX(r, a, [b,] m, ctx), but requires that a [and b]
1781 be reduced modulo m.
1782 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
1784 +) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
1785 was actually never needed) and in BN_mul(). The removal in BN_mul()
1786 required a small change in bn_mul_part_recursive() and the addition
1787 of the functions bn_cmp_part_words(), bn_sub_part_words() and
1788 bn_add_part_words(), which do the same thing as bn_cmp_words(),
1789 bn_sub_words() and bn_add_words() except they take arrays with
1793 +) In 'openssl passwd', verify passwords read from the terminal
1794 unless the '-salt' option is used (which usually means that
1795 verification would just waste user's time since the resulting
1796 hash is going to be compared with some given password hash)
1797 or the new '-noverify' option is used.
1799 This is an incompatible change, but it does not affect
1800 non-interactive use of 'openssl passwd' (passwords on the command
1801 line, '-stdin' option, '-in ...' option) and thus should not
1805 +) Remove all references to RSAref, since there's no more need for it.
1808 *) Increase BN_CTX_NUM (the number of BIGNUMs in a BN_CTX) to 16.
1809 The previous value, 12, was not always sufficient for BN_mod_exp().
1812 +) Make DSO load along a path given through an environment variable
1813 (SHLIB_PATH) with shl_load().
1816 +) Constify the ENGINE code as a result of BIGNUM constification.
1817 Also constify the RSA code and most things related to it. In a
1818 few places, most notable in the depth of the ASN.1 code, ugly
1819 casts back to non-const were required (to be solved at a later
1823 +) Make it so the openssl application has all engines loaded by default.
1826 +) Constify the BIGNUM routines a little more.
1829 *) Make sure that shared libraries get the internal name engine with
1830 the full version number and not just 0. This should mark the
1831 shared libraries as not backward compatible. Of course, this should
1832 be changed again when we can guarantee backward binary compatibility.
1835 +) Add the following functions:
1837 ENGINE_load_cswift()
1839 ENGINE_load_atalla()
1841 ENGINE_load_builtin_engines()
1843 That way, an application can itself choose if external engines that
1844 are built-in in OpenSSL shall ever be used or not. The benefit is
1845 that applications won't have to be linked with libdl or other dso
1846 libraries unless it's really needed.
1848 Changed 'openssl engine' to load all engines on demand.
1849 Changed the engine header files to avoid the duplication of some
1850 declarations (they differed!).
1853 +) 'openssl engine' can now list capabilities.
1856 +) Better error reporting in 'openssl engine'.
1859 +) Never call load_dh_param(NULL) in s_server.
1862 +) Add engine application. It can currently list engines by name and
1863 identity, and test if they are actually available.
1866 +) Add support for shared libraries under Irix.
1867 [Albert Chin-A-Young <china@thewrittenword.com>]
1869 +) Improve RPM specification file by forcing symbolic linking and making
1870 sure the installed documentation is also owned by root.root.
1871 [Damien Miller <djm@mindrot.org>]
1873 +) Add configuration option to build on Linux on both big-endian and
1875 [Ralf Baechle <ralf@uni-koblenz.de>]
1877 +) Give the OpenSSL applications more possibilities to make use of
1878 keys (public as well as private) handled by engines.
1881 +) Add OCSP code that comes from CertCo.
1884 +) Add VMS support for the Rijndael code.
1887 +) Added untested support for Nuron crypto accelerator.
1890 +) Add support for external cryptographic devices. This code was
1891 previously distributed separately as the "engine" branch.
1892 [Geoff Thorpe, Richard Levitte]
1894 +) Rework the filename-translation in the DSO code. It is now possible to
1895 have far greater control over how a "name" is turned into a filename
1896 depending on the operating environment and any oddities about the
1897 different shared library filenames on each system.
1900 +) Support threads on FreeBSD-elf in Configure.
1903 +) Add the possibility to create shared libraries on HP-UX
1906 +) Fix for SHA1 assembly problem with MASM: it produces
1907 warnings about corrupt line number information when assembling
1908 with debugging information. This is caused by the overlapping
1910 [Bernd Matthes <mainbug@celocom.de>, Steve Henson]
1913 NCONF_get_number() has no error checking at all. As a replacement,
1914 NCONF_get_number_e() is defined (_e for "error checking") and is
1915 promoted strongly. The old NCONF_get_number is kept around for
1916 binary backward compatibility.
1917 Make it possible for methods to load from something other than a BIO,
1918 by providing a function pointer that is given a name instead of a BIO.
1919 For example, this could be used to load configuration data from an
1923 *) Fix typo in get_cert_by_subject() in by_dir.c
1924 [Jean-Marc Desperrier <jean-marc.desperrier@certplus.com>]
1926 *) Rework the system to generate shared libraries:
1928 - Make note of the expected extension for the shared libraries and
1929 if there is a need for symbolic links from for example libcrypto.so.0
1930 to libcrypto.so.0.9.7. There is extended info in Configure for
1933 - Make as few rebuilds of the shared libraries as possible.
1935 - Still avoid linking the OpenSSL programs with the shared libraries.
1937 - When installing, install the shared libraries separately from the
1941 +) Fix for non blocking accept BIOs. Added new I/O special reason
1942 BIO_RR_ACCEPT to cover this case. Previously use of accept BIOs
1943 with non blocking I/O was not possible because no retry code was
1944 implemented. Also added new SSL code SSL_WANT_ACCEPT to cover
1948 +) Added the beginnings of Rijndael support.
1951 +) Fix for bug in DirectoryString mask setting. Add support for
1952 X509_NAME_print_ex() in 'req' and X509_print_ex() function
1953 to allow certificate printing to more controllable, additional
1954 'certopt' option to 'x509' to allow new printing options to be
1958 +) Clean old EAY MD5 hack from e_os.h.
1961 *) Fix SSL_CTX_set_read_ahead macro to actually use its argument.
1963 Copy SSL_CTX's read_ahead flag to SSL object directly in SSL_new
1964 and not in SSL_clear because the latter is also used by the
1965 accept/connect functions; previously, the settings made by
1966 SSL_set_read_ahead would be lost during the handshake.
1967 [Bodo Moeller; problems reported by Anders Gertz <gertz@epact.se>]
1969 *) Correct util/mkdef.pl to be selective about disabled algorithms.
1970 Previously, it would create entries for disableed algorithms no
1974 *) Added several new manual pages for SSL_* function.
1977 Changes between 0.9.5a and 0.9.6 [24 Sep 2000]
1979 *) In ssl23_get_client_hello, generate an error message when faced
1980 with an initial SSL 3.0/TLS record that is too small to contain the
1981 first two bytes of the ClientHello message, i.e. client_version.
1982 (Note that this is a pathologic case that probably has never happened
1983 in real life.) The previous approach was to use the version number
1984 from the record header as a substitute; but our protocol choice
1985 should not depend on that one because it is not authenticated
1986 by the Finished messages.
1989 *) More robust randomness gathering functions for Windows.
1990 [Jeffrey Altman <jaltman@columbia.edu>]
1992 *) For compatibility reasons if the flag X509_V_FLAG_ISSUER_CHECK is
1993 not set then we don't setup the error code for issuer check errors
1994 to avoid possibly overwriting other errors which the callback does
1995 handle. If an application does set the flag then we assume it knows
1996 what it is doing and can handle the new informational codes
2000 *) Fix for a nasty bug in ASN1_TYPE handling. ASN1_TYPE is used for
2001 a general "ANY" type, as such it should be able to decode anything
2002 including tagged types. However it didn't check the class so it would
2003 wrongly interpret tagged types in the same way as their universal
2004 counterpart and unknown types were just rejected. Changed so that the
2005 tagged and unknown types are handled in the same way as a SEQUENCE:
2006 that is the encoding is stored intact. There is also a new type
2007 "V_ASN1_OTHER" which is used when the class is not universal, in this
2008 case we have no idea what the actual type is so we just lump them all
2012 *) On VMS, stdout may very well lead to a file that is written to
2013 in a record-oriented fashion. That means that every write() will
2014 write a separate record, which will be read separately by the
2015 programs trying to read from it. This can be very confusing.
2017 The solution is to put a BIO filter in the way that will buffer
2018 text until a linefeed is reached, and then write everything a
2019 line at a time, so every record written will be an actual line,
2020 not chunks of lines and not (usually doesn't happen, but I've
2021 seen it once) several lines in one record. BIO_f_linebuffer() is
2024 Currently, it's a VMS-only method, because that's where it has
2025 been tested well enough.
2028 *) Remove 'optimized' squaring variant in BN_mod_mul_montgomery,
2029 it can return incorrect results.
2030 (Note: The buggy variant was not enabled in OpenSSL 0.9.5a,
2031 but it was in 0.9.6-beta[12].)
2034 *) Disable the check for content being present when verifying detached
2035 signatures in pk7_smime.c. Some versions of Netscape (wrongly)
2036 include zero length content when signing messages.
2039 *) New BIO_shutdown_wr macro, which invokes the BIO_C_SHUTDOWN_WR
2040 BIO_ctrl (for BIO pairs).
2043 *) Add DSO method for VMS.
2046 *) Bug fix: Montgomery multiplication could produce results with the
2050 *) Add RPM specification openssl.spec and modify it to build three
2051 packages. The default package contains applications, application
2052 documentation and run-time libraries. The devel package contains
2053 include files, static libraries and function documentation. The
2054 doc package contains the contents of the doc directory. The original
2055 openssl.spec was provided by Damien Miller <djm@mindrot.org>.
2058 *) Add a large number of documentation files for many SSL routines.
2059 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
2061 *) Add a configuration entry for Sony News 4.
2062 [NAKAJI Hiroyuki <nakaji@tutrp.tut.ac.jp>]
2064 *) Don't set the two most significant bits to one when generating a
2065 random number < q in the DSA library.
2068 *) New SSL API mode 'SSL_MODE_AUTO_RETRY'. This disables the default
2069 behaviour that SSL_read may result in SSL_ERROR_WANT_READ (even if
2070 the underlying transport is blocking) if a handshake took place.
2071 (The default behaviour is needed by applications such as s_client
2072 and s_server that use select() to determine when to use SSL_read;
2073 but for applications that know in advance when to expect data, it
2074 just makes things more complicated.)
2077 *) Add RAND_egd_bytes(), which gives control over the number of bytes read
2081 *) Add a few more EBCDIC conditionals that make `req' and `x509'
2082 work better on such systems.
2083 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
2085 *) Add two demo programs for PKCS12_parse() and PKCS12_create().
2086 Update PKCS12_parse() so it copies the friendlyName and the
2087 keyid to the certificates aux info.
2090 *) Fix bug in PKCS7_verify() which caused an infinite loop
2091 if there was more than one signature.
2092 [Sven Uszpelkat <su@celocom.de>]
2094 *) Major change in util/mkdef.pl to include extra information
2095 about each symbol, as well as presentig variables as well
2096 as functions. This change means that there's n more need
2097 to rebuild the .num files when some algorithms are excluded.
2100 *) Allow the verify time to be set by an application,
2101 rather than always using the current time.
2104 *) Phase 2 verify code reorganisation. The certificate
2105 verify code now looks up an issuer certificate by a
2106 number of criteria: subject name, authority key id
2107 and key usage. It also verifies self signed certificates
2108 by the same criteria. The main comparison function is
2109 X509_check_issued() which performs these checks.
2111 Lot of changes were necessary in order to support this
2112 without completely rewriting the lookup code.
2114 Authority and subject key identifier are now cached.
2116 The LHASH 'certs' is X509_STORE has now been replaced
2117 by a STACK_OF(X509_OBJECT). This is mainly because an
2118 LHASH can't store or retrieve multiple objects with
2119 the same hash value.
2121 As a result various functions (which were all internal
2122 use only) have changed to handle the new X509_STORE
2123 structure. This will break anything that messed round
2124 with X509_STORE internally.
2126 The functions X509_STORE_add_cert() now checks for an
2127 exact match, rather than just subject name.
2129 The X509_STORE API doesn't directly support the retrieval
2130 of multiple certificates matching a given criteria, however
2131 this can be worked round by performing a lookup first
2132 (which will fill the cache with candidate certificates)
2133 and then examining the cache for matches. This is probably
2134 the best we can do without throwing out X509_LOOKUP
2135 entirely (maybe later...).
2137 The X509_VERIFY_CTX structure has been enhanced considerably.
2139 All certificate lookup operations now go via a get_issuer()
2140 callback. Although this currently uses an X509_STORE it
2141 can be replaced by custom lookups. This is a simple way
2142 to bypass the X509_STORE hackery necessary to make this
2143 work and makes it possible to use more efficient techniques
2144 in future. A very simple version which uses a simple
2145 STACK for its trusted certificate store is also provided
2146 using X509_STORE_CTX_trusted_stack().
2148 The verify_cb() and verify() callbacks now have equivalents
2149 in the X509_STORE_CTX structure.
2151 X509_STORE_CTX also has a 'flags' field which can be used
2152 to customise the verify behaviour.
2155 *) Add new PKCS#7 signing option PKCS7_NOSMIMECAP which
2156 excludes S/MIME capabilities.
2159 *) When a certificate request is read in keep a copy of the
2160 original encoding of the signed data and use it when outputing
2161 again. Signatures then use the original encoding rather than
2162 a decoded, encoded version which may cause problems if the
2163 request is improperly encoded.
2166 *) For consistency with other BIO_puts implementations, call
2167 buffer_write(b, ...) directly in buffer_puts instead of calling
2170 In BIO_puts, increment b->num_write as in BIO_write.
2171 [Peter.Sylvester@EdelWeb.fr]
2173 *) Fix BN_mul_word for the case where the word is 0. (We have to use
2174 BN_zero, we may not return a BIGNUM with an array consisting of
2178 *) Avoid calling abort() from within the library when problems are
2179 detected, except if preprocessor symbols have been defined
2180 (such as REF_CHECK, BN_DEBUG etc.).
2183 *) New openssl application 'rsautl'. This utility can be
2184 used for low level RSA operations. DER public key
2185 BIO/fp routines also added.
2188 *) New Configure entry and patches for compiling on QNX 4.
2189 [Andreas Schneider <andreas@ds3.etech.fh-hamburg.de>]
2191 *) A demo state-machine implementation was sponsored by
2192 Nuron (http://www.nuron.com/) and is now available in
2193 demos/state_machine.
2196 *) New options added to the 'dgst' utility for signature
2197 generation and verification.
2200 *) Unrecognized PKCS#7 content types are now handled via a
2201 catch all ASN1_TYPE structure. This allows unsupported
2202 types to be stored as a "blob" and an application can
2203 encode and decode it manually.
2206 *) Fix various signed/unsigned issues to make a_strex.c
2208 [Oscar Jacobsson <oscar.jacobsson@celocom.com>]
2210 *) ASN1 fixes. i2d_ASN1_OBJECT was not returning the correct
2211 length if passed a buffer. ASN1_INTEGER_to_BN failed
2212 if passed a NULL BN and its argument was negative.
2213 [Steve Henson, pointed out by Sven Heiberg <sven@tartu.cyber.ee>]
2215 *) Modification to PKCS#7 encoding routines to output definite
2216 length encoding. Since currently the whole structures are in
2217 memory there's not real point in using indefinite length
2218 constructed encoding. However if OpenSSL is compiled with
2219 the flag PKCS7_INDEFINITE_ENCODING the old form is used.
2222 *) Added BIO_vprintf() and BIO_vsnprintf().
2225 *) Added more prefixes to parse for in the the strings written
2226 through a logging bio, to cover all the levels that are available
2227 through syslog. The prefixes are now:
2229 PANIC, EMERG, EMR => LOG_EMERG
2230 ALERT, ALR => LOG_ALERT
2231 CRIT, CRI => LOG_CRIT
2232 ERROR, ERR => LOG_ERR
2233 WARNING, WARN, WAR => LOG_WARNING
2234 NOTICE, NOTE, NOT => LOG_NOTICE
2235 INFO, INF => LOG_INFO
2236 DEBUG, DBG => LOG_DEBUG
2238 and as before, if none of those prefixes are present at the
2239 beginning of the string, LOG_ERR is chosen.
2241 On Win32, the LOG_* levels are mapped according to this:
2243 LOG_EMERG, LOG_ALERT, LOG_CRIT, LOG_ERR => EVENTLOG_ERROR_TYPE
2244 LOG_WARNING => EVENTLOG_WARNING_TYPE
2245 LOG_NOTICE, LOG_INFO, LOG_DEBUG => EVENTLOG_INFORMATION_TYPE
2249 *) Made it possible to reconfigure with just the configuration
2250 argument "reconf" or "reconfigure". The command line arguments
2251 are stored in Makefile.ssl in the variable CONFIGURE_ARGS,
2252 and are retrieved from there when reconfiguring.
2256 [Assar Westerlund <assar@sics.se>, Richard Levitte]
2258 *) Add the arguments -CAfile and -CApath to the pkcs12 utility.
2261 *) The obj_dat.pl script was messing up the sorting of object
2262 names. The reason was that it compared the quoted version
2263 of strings as a result "OCSP" > "OCSP Signing" because
2264 " > SPACE. Changed script to store unquoted versions of
2265 names and add quotes on output. It was also omitting some
2266 names from the lookup table if they were given a default
2267 value (that is if SN is missing it is given the same
2268 value as LN and vice versa), these are now added on the
2269 grounds that if an object has a name we should be able to
2270 look it up. Finally added warning output when duplicate
2271 short or long names are found.
2274 *) Changes needed for Tandem NSK.
2275 [Scott Uroff <scott@xypro.com>]
2277 *) Fix SSL 2.0 rollback checking: Due to an off-by-one error in
2278 RSA_padding_check_SSLv23(), special padding was never detected
2279 and thus the SSL 3.0/TLS 1.0 countermeasure against protocol
2280 version rollback attacks was not effective.
2282 In s23_clnt.c, don't use special rollback-attack detection padding
2283 (RSA_SSLV23_PADDING) if SSL 2.0 is the only protocol enabled in the
2284 client; similarly, in s23_srvr.c, don't do the rollback check if
2285 SSL 2.0 is the only protocol enabled in the server.
2288 *) Make it possible to get hexdumps of unprintable data with 'openssl
2289 asn1parse'. By implication, the functions ASN1_parse_dump() and
2290 BIO_dump_indent() are added.
2293 *) New functions ASN1_STRING_print_ex() and X509_NAME_print_ex()
2294 these print out strings and name structures based on various
2295 flags including RFC2253 support and proper handling of
2296 multibyte characters. Added options to the 'x509' utility
2297 to allow the various flags to be set.
2300 *) Various fixes to use ASN1_TIME instead of ASN1_UTCTIME.
2301 Also change the functions X509_cmp_current_time() and
2302 X509_gmtime_adj() work with an ASN1_TIME structure,
2303 this will enable certificates using GeneralizedTime in validity
2304 dates to be checked.
2307 *) Make the NEG_PUBKEY_BUG code (which tolerates invalid
2308 negative public key encodings) on by default,
2309 NO_NEG_PUBKEY_BUG can be set to disable it.
2312 *) New function c2i_ASN1_OBJECT() which acts on ASN1_OBJECT
2313 content octets. An i2c_ASN1_OBJECT is unnecessary because
2314 the encoding can be trivially obtained from the structure.
2317 *) crypto/err.c locking bugfix: Use write locks (CRYPTO_w_[un]lock),
2318 not read locks (CRYPTO_r_[un]lock).
2321 *) A first attempt at creating official support for shared
2322 libraries through configuration. I've kept it so the
2323 default is static libraries only, and the OpenSSL programs
2324 are always statically linked for now, but there are
2325 preparations for dynamic linking in place.
2326 This has been tested on Linux and Tru64.
2329 *) Randomness polling function for Win9x, as described in:
2330 Peter Gutmann, Software Generation of Practically Strong
2334 *) Fix so PRNG is seeded in req if using an already existing
2338 *) New options to smime application. -inform and -outform
2339 allow alternative formats for the S/MIME message including
2340 PEM and DER. The -content option allows the content to be
2341 specified separately. This should allow things like Netscape
2342 form signing output easier to verify.
2345 *) Fix the ASN1 encoding of tags using the 'long form'.
2348 *) New ASN1 functions, i2c_* and c2i_* for INTEGER and BIT
2349 STRING types. These convert content octets to and from the
2350 underlying type. The actual tag and length octets are
2351 already assumed to have been read in and checked. These
2352 are needed because all other string types have virtually
2353 identical handling apart from the tag. By having versions
2354 of the ASN1 functions that just operate on content octets
2355 IMPLICIT tagging can be handled properly. It also allows
2356 the ASN1_ENUMERATED code to be cut down because ASN1_ENUMERATED
2357 and ASN1_INTEGER are identical apart from the tag.
2360 *) Change the handling of OID objects as follows:
2362 - New object identifiers are inserted in objects.txt, following
2363 the syntax given in objects.README.
2364 - objects.pl is used to process obj_mac.num and create a new
2366 - obj_dat.pl is used to create a new obj_dat.h, using the data in
2369 This is currently kind of a hack, and the perl code in objects.pl
2370 isn't very elegant, but it works as I intended. The simplest way
2371 to check that it worked correctly is to look in obj_dat.h and
2372 check the array nid_objs and make sure the objects haven't moved
2373 around (this is important!). Additions are OK, as well as
2374 consistent name changes.
2377 *) Add BSD-style MD5-based passwords to 'openssl passwd' (option '-1').
2380 *) Addition of the command line parameter '-rand file' to 'openssl req'.
2381 The given file adds to whatever has already been seeded into the
2382 random pool through the RANDFILE configuration file option or
2383 environment variable, or the default random state file.
2386 *) mkstack.pl now sorts each macro group into lexical order.
2387 Previously the output order depended on the order the files
2388 appeared in the directory, resulting in needless rewriting
2392 *) Patches to make OpenSSL compile under Win32 again. Mostly
2393 work arounds for the VC++ problem that it treats func() as
2394 func(void). Also stripped out the parts of mkdef.pl that
2395 added extra typesafe functions: these no longer exist.
2398 *) Reorganisation of the stack code. The macros are now all
2399 collected in safestack.h . Each macro is defined in terms of
2400 a "stack macro" of the form SKM_<name>(type, a, b). The
2401 DEBUG_SAFESTACK is now handled in terms of function casts,
2402 this has the advantage of retaining type safety without the
2403 use of additional functions. If DEBUG_SAFESTACK is not defined
2404 then the non typesafe macros are used instead. Also modified the
2405 mkstack.pl script to handle the new form. Needs testing to see
2406 if which (if any) compilers it chokes and maybe make DEBUG_SAFESTACK
2407 the default if no major problems. Similar behaviour for ASN1_SET_OF
2408 and PKCS12_STACK_OF.
2411 *) When some versions of IIS use the 'NET' form of private key the
2412 key derivation algorithm is different. Normally MD5(password) is
2413 used as a 128 bit RC4 key. In the modified case
2414 MD5(MD5(password) + "SGCKEYSALT") is used insted. Added some
2415 new functions i2d_RSA_NET(), d2i_RSA_NET() etc which are the same
2416 as the old Netscape_RSA functions except they have an additional
2417 'sgckey' parameter which uses the modified algorithm. Also added
2418 an -sgckey command line option to the rsa utility. Thanks to
2419 Adrian Peck <bertie@ncipher.com> for posting details of the modified
2420 algorithm to openssl-dev.
2423 *) The evp_local.h macros were using 'c.##kname' which resulted in
2424 invalid expansion on some systems (SCO 5.0.5 for example).
2425 Corrected to 'c.kname'.
2426 [Phillip Porch <root@theporch.com>]
2428 *) New X509_get1_email() and X509_REQ_get1_email() functions that return
2429 a STACK of email addresses from a certificate or request, these look
2430 in the subject name and the subject alternative name extensions and
2431 omit any duplicate addresses.
2434 *) Re-implement BN_mod_exp2_mont using independent (and larger) windows.
2435 This makes DSA verification about 2 % faster.
2438 *) Increase maximum window size in BN_mod_exp_... to 6 bits instead of 5
2439 (meaning that now 2^5 values will be precomputed, which is only 4 KB
2440 plus overhead for 1024 bit moduli).
2441 This makes exponentiations about 0.5 % faster for 1024 bit
2442 exponents (as measured by "openssl speed rsa2048").
2445 *) Rename memory handling macros to avoid conflicts with other
2447 Malloc => OPENSSL_malloc
2448 Malloc_locked => OPENSSL_malloc_locked
2449 Realloc => OPENSSL_realloc
2450 Free => OPENSSL_free
2453 *) New function BN_mod_exp_mont_word for small bases (roughly 15%
2454 faster than BN_mod_exp_mont, i.e. 7% for a full DH exchange).
2457 *) CygWin32 support.
2458 [John Jarvie <jjarvie@newsguy.com>]
2460 *) The type-safe stack code has been rejigged. It is now only compiled
2461 in when OpenSSL is configured with the DEBUG_SAFESTACK option and
2462 by default all type-specific stack functions are "#define"d back to
2463 standard stack functions. This results in more streamlined output
2464 but retains the type-safety checking possibilities of the original
2468 *) The STACK code has been cleaned up, and certain type declarations
2469 that didn't make a lot of sense have been brought in line. This has
2470 also involved a cleanup of sorts in safestack.h to more correctly
2471 map type-safe stack functions onto their plain stack counterparts.
2472 This work has also resulted in a variety of "const"ifications of
2473 lots of the code, especially "_cmp" operations which should normally
2474 be prototyped with "const" parameters anyway.
2477 *) When generating bytes for the first time in md_rand.c, 'stir the pool'
2478 by seeding with STATE_SIZE dummy bytes (with zero entropy count).
2479 (The PRNG state consists of two parts, the large pool 'state' and 'md',
2480 where all of 'md' is used each time the PRNG is used, but 'state'
2481 is used only indexed by a cyclic counter. As entropy may not be
2482 well distributed from the beginning, 'md' is important as a
2483 chaining variable. However, the output function chains only half
2484 of 'md', i.e. 80 bits. ssleay_rand_add, on the other hand, chains
2485 all of 'md', and seeding with STATE_SIZE dummy bytes will result
2486 in all of 'state' being rewritten, with the new values depending
2487 on virtually all of 'md'. This overcomes the 80 bit limitation.)
2490 *) In ssl/s2_clnt.c and ssl/s3_clnt.c, call ERR_clear_error() when
2491 the handshake is continued after ssl_verify_cert_chain();
2492 otherwise, if SSL_VERIFY_NONE is set, remaining error codes
2493 can lead to 'unexplainable' connection aborts later.
2494 [Bodo Moeller; problem tracked down by Lutz Jaenicke]
2496 *) Major EVP API cipher revision.
2497 Add hooks for extra EVP features. This allows various cipher
2498 parameters to be set in the EVP interface. Support added for variable
2499 key length ciphers via the EVP_CIPHER_CTX_set_key_length() function and
2500 setting of RC2 and RC5 parameters.
2502 Modify EVP_OpenInit() and EVP_SealInit() to cope with variable key length
2505 Remove lots of duplicated code from the EVP library. For example *every*
2506 cipher init() function handles the 'iv' in the same way according to the
2507 cipher mode. They also all do nothing if the 'key' parameter is NULL and
2508 for CFB and OFB modes they zero ctx->num.
2510 New functionality allows removal of S/MIME code RC2 hack.
2512 Most of the routines have the same form and so can be declared in terms
2515 By shifting this to the top level EVP_CipherInit() it can be removed from
2516 all individual ciphers. If the cipher wants to handle IVs or keys
2517 differently it can set the EVP_CIPH_CUSTOM_IV or EVP_CIPH_ALWAYS_CALL_INIT
2520 Change lots of functions like EVP_EncryptUpdate() to now return a
2521 value: although software versions of the algorithms cannot fail
2522 any installed hardware versions can.
2525 *) Implement SSL_OP_TLS_ROLLBACK_BUG: In ssl3_get_client_key_exchange, if
2526 this option is set, tolerate broken clients that send the negotiated
2527 protocol version number instead of the requested protocol version
2531 *) Call dh_tmp_cb (set by ..._TMP_DH_CB) with correct 'is_export' flag;
2532 i.e. non-zero for export ciphersuites, zero otherwise.
2533 Previous versions had this flag inverted, inconsistent with
2534 rsa_tmp_cb (..._TMP_RSA_CB).
2535 [Bodo Moeller; problem reported by Amit Chopra]
2537 *) Add missing DSA library text string. Work around for some IIS
2538 key files with invalid SEQUENCE encoding.
2541 *) Add a document (doc/standards.txt) that list all kinds of standards
2542 and so on that are implemented in OpenSSL.
2545 *) Enhance c_rehash script. Old version would mishandle certificates
2546 with the same subject name hash and wouldn't handle CRLs at all.
2547 Added -fingerprint option to crl utility, to support new c_rehash
2551 *) Eliminate non-ANSI declarations in crypto.h and stack.h.
2554 *) Fix for SSL server purpose checking. Server checking was
2555 rejecting certificates which had extended key usage present
2556 but no ssl client purpose.
2557 [Steve Henson, reported by Rene Grosser <grosser@hisolutions.com>]
2559 *) Make PKCS#12 code work with no password. The PKCS#12 spec
2560 is a little unclear about how a blank password is handled.
2561 Since the password in encoded as a BMPString with terminating
2562 double NULL a zero length password would end up as just the
2563 double NULL. However no password at all is different and is
2564 handled differently in the PKCS#12 key generation code. NS
2565 treats a blank password as zero length. MSIE treats it as no
2566 password on export: but it will try both on import. We now do
2567 the same: PKCS12_parse() tries zero length and no password if
2568 the password is set to "" or NULL (NULL is now a valid password:
2569 it wasn't before) as does the pkcs12 application.
2572 *) Bugfixes in apps/x509.c: Avoid a memory leak; and don't use
2573 perror when PEM_read_bio_X509_REQ fails, the error message must
2574 be obtained from the error queue.
2577 *) Avoid 'thread_hash' memory leak in crypto/err/err.c by freeing
2578 it in ERR_remove_state if appropriate, and change ERR_get_state
2579 accordingly to avoid race conditions (this is necessary because
2580 thread_hash is no longer constant once set).
2583 *) Bugfix for linux-elf makefile.one.
2586 *) RSA_get_default_method() will now cause a default
2587 RSA_METHOD to be chosen if one doesn't exist already.
2588 Previously this was only set during a call to RSA_new()
2589 or RSA_new_method(NULL) meaning it was possible for
2590 RSA_get_default_method() to return NULL.
2593 *) Added native name translation to the existing DSO code
2594 that will convert (if the flag to do so is set) filenames
2595 that are sufficiently small and have no path information
2596 into a canonical native form. Eg. "blah" converted to
2597 "libblah.so" or "blah.dll" etc.
2600 *) New function ERR_error_string_n(e, buf, len) which is like
2601 ERR_error_string(e, buf), but writes at most 'len' bytes
2602 including the 0 terminator. For ERR_error_string_n, 'buf'
2604 [Damien Miller <djm@mindrot.org>, Bodo Moeller]
2606 *) CONF library reworked to become more general. A new CONF
2607 configuration file reader "class" is implemented as well as a
2608 new functions (NCONF_*, for "New CONF") to handle it. The now
2609 old CONF_* functions are still there, but are reimplemented to
2610 work in terms of the new functions. Also, a set of functions
2611 to handle the internal storage of the configuration data is
2612 provided to make it easier to write new configuration file
2613 reader "classes" (I can definitely see something reading a
2614 configuration file in XML format, for example), called _CONF_*,
2615 or "the configuration storage API"...
2617 The new configuration file reading functions are:
2619 NCONF_new, NCONF_free, NCONF_load, NCONF_load_fp, NCONF_load_bio,
2620 NCONF_get_section, NCONF_get_string, NCONF_get_numbre
2622 NCONF_default, NCONF_WIN32
2624 NCONF_dump_fp, NCONF_dump_bio
2626 NCONF_default and NCONF_WIN32 are method (or "class") choosers,
2627 NCONF_new creates a new CONF object. This works in the same way
2628 as other interfaces in OpenSSL, like the BIO interface.
2629 NCONF_dump_* dump the internal storage of the configuration file,
2630 which is useful for debugging. All other functions take the same
2631 arguments as the old CONF_* functions wth the exception of the
2632 first that must be a `CONF *' instead of a `LHASH *'.
2634 To make it easer to use the new classes with the old CONF_* functions,
2635 the function CONF_set_default_method is provided.
2638 *) Add '-tls1' option to 'openssl ciphers', which was already
2639 mentioned in the documentation but had not been implemented.
2640 (This option is not yet really useful because even the additional
2641 experimental TLS 1.0 ciphers are currently treated as SSL 3.0 ciphers.)
2644 *) Initial DSO code added into libcrypto for letting OpenSSL (and
2645 OpenSSL-based applications) load shared libraries and bind to
2646 them in a portable way.
2647 [Geoff Thorpe, with contributions from Richard Levitte]
2649 Changes between 0.9.5 and 0.9.5a [1 Apr 2000]
2651 *) Make sure _lrotl and _lrotr are only used with MSVC.
2653 *) Use lock CRYPTO_LOCK_RAND correctly in ssleay_rand_status
2654 (the default implementation of RAND_status).
2656 *) Rename openssl x509 option '-crlext', which was added in 0.9.5,
2657 to '-clrext' (= clear extensions), as intended and documented.
2658 [Bodo Moeller; inconsistency pointed out by Michael Attili
2661 *) Fix for HMAC. It wasn't zeroing the rest of the block if the key length
2662 was larger than the MD block size.
2663 [Steve Henson, pointed out by Yost William <YostW@tce.com>]
2665 *) Modernise PKCS12_parse() so it uses STACK_OF(X509) for its ca argument
2666 fix a leak when the ca argument was passed as NULL. Stop X509_PUBKEY_set()
2667 using the passed key: if the passed key was a private key the result
2668 of X509_print(), for example, would be to print out all the private key
2672 *) des_quad_cksum() byte order bug fix.
2673 [Ulf Möller, using the problem description in krb4-0.9.7, where
2674 the solution is attributed to Derrick J Brashear <shadow@DEMENTIA.ORG>]
2676 *) Fix so V_ASN1_APP_CHOOSE works again: however its use is strongly
2678 [Steve Henson, pointed out by Brian Korver <briank@cs.stanford.edu>]
2680 *) For easily testing in shell scripts whether some command
2681 'openssl XXX' exists, the new pseudo-command 'openssl no-XXX'
2682 returns with exit code 0 iff no command of the given name is available.
2683 'no-XXX' is printed in this case, 'XXX' otherwise. In both cases,
2684 the output goes to stdout and nothing is printed to stderr.
2685 Additional arguments are always ignored.
2687 Since for each cipher there is a command of the same name,
2688 the 'no-cipher' compilation switches can be tested this way.
2690 ('openssl no-XXX' is not able to detect pseudo-commands such
2691 as 'quit', 'list-XXX-commands', or 'no-XXX' itself.)
2694 *) Update test suite so that 'make test' succeeds in 'no-rsa' configuration.
2697 *) For SSL_[CTX_]set_tmp_dh, don't create a DH key if SSL_OP_SINGLE_DH_USE
2698 is set; it will be thrown away anyway because each handshake creates
2700 ssl_cert_dup, which is used by SSL_new, now copies DH keys in addition
2701 to parameters -- in previous versions (since OpenSSL 0.9.3) the
2702 'default key' from SSL_CTX_set_tmp_dh would always be lost, meanining
2703 you effectivly got SSL_OP_SINGLE_DH_USE when using this macro.
2706 *) New s_client option -ign_eof: EOF at stdin is ignored, and
2707 'Q' and 'R' lose their special meanings (quit/renegotiate).
2708 This is part of what -quiet does; unlike -quiet, -ign_eof
2709 does not suppress any output.
2712 *) Add compatibility options to the purpose and trust code. The
2713 purpose X509_PURPOSE_ANY is "any purpose" which automatically
2714 accepts a certificate or CA, this was the previous behaviour,
2715 with all the associated security issues.
2717 X509_TRUST_COMPAT is the old trust behaviour: only and
2718 automatically trust self signed roots in certificate store. A
2719 new trust setting X509_TRUST_DEFAULT is used to specify that
2720 a purpose has no associated trust setting and it should instead
2721 use the value in the default purpose.
2724 *) Fix the PKCS#8 DSA private key code so it decodes keys again
2725 and fix a memory leak.
2728 *) In util/mkerr.pl (which implements 'make errors'), preserve
2729 reason strings from the previous version of the .c file, as
2730 the default to have only downcase letters (and digits) in
2731 automatically generated reasons codes is not always appropriate.
2734 *) In ERR_load_ERR_strings(), build an ERR_LIB_SYS error reason table
2735 using strerror. Previously, ERR_reason_error_string() returned
2736 library names as reason strings for SYSerr; but SYSerr is a special
2737 case where small numbers are errno values, not library numbers.
2740 *) Add '-dsaparam' option to 'openssl dhparam' application. This
2741 converts DSA parameters into DH parameters. (When creating parameters,
2742 DSA_generate_parameters is used.)
2745 *) Include 'length' (recommended exponent length) in C code generated
2746 by 'openssl dhparam -C'.
2749 *) The second argument to set_label in perlasm was already being used
2750 so couldn't be used as a "file scope" flag. Moved to third argument
2754 *) In PEM_ASN1_write_bio and some other functions, use RAND_pseudo_bytes
2755 instead of RAND_bytes for encryption IVs and salts.
2758 *) Include RAND_status() into RAND_METHOD instead of implementing
2759 it only for md_rand.c Otherwise replacing the PRNG by calling
2760 RAND_set_rand_method would be impossible.
2763 *) Don't let DSA_generate_key() enter an infinite loop if the random
2764 number generation fails.
2767 *) New 'rand' application for creating pseudo-random output.
2770 *) Added configuration support for Linux/IA64
2771 [Rolf Haberrecker <rolf@suse.de>]
2773 *) Assembler module support for Mingw32.
2776 *) Shared library support for HPUX (in shlib/).
2777 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE> and Anonymous]
2779 *) Shared library support for Solaris gcc.
2780 [Lutz Behnke <behnke@trustcenter.de>]
2782 Changes between 0.9.4 and 0.9.5 [28 Feb 2000]
2784 *) PKCS7_encrypt() was adding text MIME headers twice because they
2785 were added manually and by SMIME_crlf_copy().
2788 *) In bntest.c don't call BN_rand with zero bits argument.
2789 [Steve Henson, pointed out by Andrew W. Gray <agray@iconsinc.com>]
2791 *) BN_mul bugfix: In bn_mul_part_recursion() only the a>a[n] && b>b[n]
2792 case was implemented. This caused BN_div_recp() to fail occasionally.
2795 *) Add an optional second argument to the set_label() in the perl
2796 assembly language builder. If this argument exists and is set
2797 to 1 it signals that the assembler should use a symbol whose
2798 scope is the entire file, not just the current function. This
2799 is needed with MASM which uses the format label:: for this scope.
2800 [Steve Henson, pointed out by Peter Runestig <peter@runestig.com>]
2802 *) Change the ASN1 types so they are typedefs by default. Before
2803 almost all types were #define'd to ASN1_STRING which was causing
2804 STACK_OF() problems: you couldn't declare STACK_OF(ASN1_UTF8STRING)
2808 *) Change names of new functions to the new get1/get0 naming
2809 convention: After 'get1', the caller owns a reference count
2810 and has to call ..._free; 'get0' returns a pointer to some
2811 data structure without incrementing reference counters.
2812 (Some of the existing 'get' functions increment a reference
2813 counter, some don't.)
2814 Similarly, 'set1' and 'add1' functions increase reference
2815 counters or duplicate objects.
2818 *) Allow for the possibility of temp RSA key generation failure:
2819 the code used to assume it always worked and crashed on failure.
2822 *) Fix potential buffer overrun problem in BIO_printf().
2823 [Ulf Möller, using public domain code by Patrick Powell; problem
2824 pointed out by David Sacerdote <das33@cornell.edu>]
2826 *) Support EGD <http://www.lothar.com/tech/crypto/>. New functions
2827 RAND_egd() and RAND_status(). In the command line application,
2828 the EGD socket can be specified like a seed file using RANDFILE
2832 *) Allow the string CERTIFICATE to be tolerated in PKCS#7 structures.
2833 Some CAs (e.g. Verisign) distribute certificates in this form.
2836 *) Remove the SSL_ALLOW_ADH compile option and set the default cipher
2837 list to exclude them. This means that no special compilation option
2838 is needed to use anonymous DH: it just needs to be included in the
2842 *) Change the EVP_MD_CTX_type macro so its meaning consistent with
2843 EVP_MD_type. The old functionality is available in a new macro called
2844 EVP_MD_md(). Change code that uses it and update docs.
2847 *) ..._ctrl functions now have corresponding ..._callback_ctrl functions
2848 where the 'void *' argument is replaced by a function pointer argument.
2849 Previously 'void *' was abused to point to functions, which works on
2850 many platforms, but is not correct. As these functions are usually
2851 called by macros defined in OpenSSL header files, most source code
2852 should work without changes.
2855 *) <openssl/opensslconf.h> (which is created by Configure) now contains
2856 sections with information on -D... compiler switches used for
2857 compiling the library so that applications can see them. To enable
2858 one of these sections, a pre-processor symbol OPENSSL_..._DEFINES
2859 must be defined. E.g.,
2860 #define OPENSSL_ALGORITHM_DEFINES
2861 #include <openssl/opensslconf.h>
2862 defines all pertinent NO_<algo> symbols, such as NO_IDEA, NO_RSA, etc.
2863 [Richard Levitte, Ulf and Bodo Möller]
2865 *) Bugfix: Tolerate fragmentation and interleaving in the SSL 3/TLS
2869 *) Change the 'other' type in certificate aux info to a STACK_OF
2870 X509_ALGOR. Although not an AlgorithmIdentifier as such it has
2871 the required ASN1 format: arbitrary types determined by an OID.
2874 *) Add some PEM_write_X509_REQ_NEW() functions and a command line
2875 argument to 'req'. This is not because the function is newer or
2876 better than others it just uses the work 'NEW' in the certificate
2877 request header lines. Some software needs this.
2880 *) Reorganise password command line arguments: now passwords can be
2881 obtained from various sources. Delete the PEM_cb function and make
2882 it the default behaviour: i.e. if the callback is NULL and the
2883 usrdata argument is not NULL interpret it as a null terminated pass
2884 phrase. If usrdata and the callback are NULL then the pass phrase
2885 is prompted for as usual.
2888 *) Add support for the Compaq Atalla crypto accelerator. If it is installed,
2889 the support is automatically enabled. The resulting binaries will
2890 autodetect the card and use it if present.
2891 [Ben Laurie and Compaq Inc.]
2893 *) Work around for Netscape hang bug. This sends certificate request
2894 and server done in one record. Since this is perfectly legal in the
2895 SSL/TLS protocol it isn't a "bug" option and is on by default. See
2896 the bugs/SSLv3 entry for more info.
2899 *) HP-UX tune-up: new unified configs, HP C compiler bug workaround.
2902 *) Add -rand argument to smime and pkcs12 applications and read/write
2906 *) New 'passwd' tool for crypt(3) and apr1 password hashes.
2909 *) Add command line password options to the remaining applications.
2912 *) Bug fix for BN_div_recp() for numerators with an even number of
2916 *) More tests in bntest.c, and changed test_bn output.
2919 *) ./config recognizes MacOS X now.
2922 *) Bug fix for BN_div() when the first words of num and divsor are
2923 equal (it gave wrong results if (rem=(n1-q*d0)&BN_MASK2) < d0).
2926 *) Add support for various broken PKCS#8 formats, and command line
2927 options to produce them.
2930 *) New functions BN_CTX_start(), BN_CTX_get() and BT_CTX_end() to
2931 get temporary BIGNUMs from a BN_CTX.
2934 *) Correct return values in BN_mod_exp_mont() and BN_mod_exp2_mont()
2938 *) Change the SSLeay_add_all_*() functions to OpenSSL_add_all_*() and
2939 include a #define from the old name to the new. The original intent
2940 was that statically linked binaries could for example just call
2941 SSLeay_add_all_ciphers() to just add ciphers to the table and not
2942 link with digests. This never worked becayse SSLeay_add_all_digests()
2943 and SSLeay_add_all_ciphers() were in the same source file so calling
2944 one would link with the other. They are now in separate source files.
2947 *) Add a new -notext option to 'ca' and a -pubkey option to 'spkac'.
2950 *) Use a less unusual form of the Miller-Rabin primality test (it used
2951 a binary algorithm for exponentiation integrated into the Miller-Rabin
2952 loop, our standard modexp algorithms are faster).
2955 *) Support for the EBCDIC character set completed.
2956 [Martin Kraemer <Martin.Kraemer@Mch.SNI.De>]
2958 *) Source code cleanups: use const where appropriate, eliminate casts,
2959 use void * instead of char * in lhash.
2962 *) Bugfix: ssl3_send_server_key_exchange was not restartable
2963 (the state was not changed to SSL3_ST_SW_KEY_EXCH_B, and because of
2964 this the server could overwrite ephemeral keys that the client
2968 *) Turn DSA_is_prime into a macro that calls BN_is_prime,
2969 using 50 iterations of the Rabin-Miller test.
2971 DSA_generate_parameters now uses BN_is_prime_fasttest (with 50
2972 iterations of the Rabin-Miller test as required by the appendix
2973 to FIPS PUB 186[-1]) instead of DSA_is_prime.
2974 As BN_is_prime_fasttest includes trial division, DSA parameter
2975 generation becomes much faster.
2977 This implies a change for the callback functions in DSA_is_prime
2978 and DSA_generate_parameters: The callback function is called once
2979 for each positive witness in the Rabin-Miller test, not just
2980 occasionally in the inner loop; and the parameters to the
2981 callback function now provide an iteration count for the outer
2982 loop rather than for the current invocation of the inner loop.
2983 DSA_generate_parameters additionally can call the callback
2984 function with an 'iteration count' of -1, meaning that a
2985 candidate has passed the trial division test (when q is generated
2986 from an application-provided seed, trial division is skipped).
2989 *) New function BN_is_prime_fasttest that optionally does trial
2990 division before starting the Rabin-Miller test and has
2991 an additional BN_CTX * argument (whereas BN_is_prime always
2992 has to allocate at least one BN_CTX).
2993 'callback(1, -1, cb_arg)' is called when a number has passed the
2994 trial division stage.
2997 *) Fix for bug in CRL encoding. The validity dates weren't being handled
3001 *) New -pkcs12 option to CA.pl script to write out a PKCS#12 file.
3004 *) New function BN_pseudo_rand().
3007 *) Clean up BN_mod_mul_montgomery(): replace the broken (and unreadable)
3008 bignum version of BN_from_montgomery() with the working code from
3009 SSLeay 0.9.0 (the word based version is faster anyway), and clean up
3013 *) Avoid a race condition in s2_clnt.c (function get_server_hello) that
3014 made it impossible to use the same SSL_SESSION data structure in
3015 SSL2 clients in multiple threads.
3018 *) The return value of RAND_load_file() no longer counts bytes obtained
3019 by stat(). RAND_load_file(..., -1) is new and uses the complete file
3020 to seed the PRNG (previously an explicit byte count was required).
3021 [Ulf Möller, Bodo Möller]
3023 *) Clean up CRYPTO_EX_DATA functions, some of these didn't have prototypes
3024 used (char *) instead of (void *) and had casts all over the place.
3027 *) Make BN_generate_prime() return NULL on error if ret!=NULL.
3030 *) Retain source code compatibility for BN_prime_checks macro:
3031 BN_is_prime(..., BN_prime_checks, ...) now uses
3032 BN_prime_checks_for_size to determine the appropriate number of
3033 Rabin-Miller iterations.
3036 *) Diffie-Hellman uses "safe" primes: DH_check() return code renamed to
3037 DH_CHECK_P_NOT_SAFE_PRIME.
3038 (Check if this is true? OpenPGP calls them "strong".)
3041 *) Merge the functionality of "dh" and "gendh" programs into a new program
3042 "dhparam". The old programs are retained for now but will handle DH keys
3043 (instead of parameters) in future.
3046 *) Make the ciphers, s_server and s_client programs check the return values
3047 when a new cipher list is set.
3050 *) Enhance the SSL/TLS cipher mechanism to correctly handle the TLS 56bit
3051 ciphers. Before when the 56bit ciphers were enabled the sorting was
3054 The syntax for the cipher sorting has been extended to support sorting by
3055 cipher-strength (using the strength_bits hard coded in the tables).
3056 The new command is "@STRENGTH" (see also doc/apps/ciphers.pod).
3058 Fix a bug in the cipher-command parser: when supplying a cipher command
3059 string with an "undefined" symbol (neither command nor alphanumeric
3060 [A-Za-z0-9], ssl_set_cipher_list used to hang in an endless loop. Now
3061 an error is flagged.
3063 Due to the strength-sorting extension, the code of the
3064 ssl_create_cipher_list() function was completely rearranged. I hope that
3065 the readability was also increased :-)
3066 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
3068 *) Minor change to 'x509' utility. The -CAcreateserial option now uses 1
3069 for the first serial number and places 2 in the serial number file. This
3070 avoids problems when the root CA is created with serial number zero and
3071 the first user certificate has the same issuer name and serial number
3075 *) Fixes to X509_ATTRIBUTE utilities, change the 'req' program so it uses
3076 the new code. Add documentation for this stuff.
3079 *) Changes to X509_ATTRIBUTE utilities. These have been renamed from
3080 X509_*() to X509at_*() on the grounds that they don't handle X509
3081 structures and behave in an analagous way to the X509v3 functions:
3082 they shouldn't be called directly but wrapper functions should be used
3085 So we also now have some wrapper functions that call the X509at functions
3086 when passed certificate requests. (TO DO: similar things can be done with
3087 PKCS#7 signed and unsigned attributes, PKCS#12 attributes and a few other
3088 things. Some of these need some d2i or i2d and print functionality
3089 because they handle more complex structures.)
3092 *) Add missing #ifndefs that caused missing symbols when building libssl
3093 as a shared library without RSA. Use #ifndef NO_SSL2 instead of
3094 NO_RSA in ssl/s2*.c.
3095 [Kris Kennaway <kris@hub.freebsd.org>, modified by Ulf Möller]
3097 *) Precautions against using the PRNG uninitialized: RAND_bytes() now
3098 has a return value which indicates the quality of the random data
3099 (1 = ok, 0 = not seeded). Also an error is recorded on the thread's
3100 error queue. New function RAND_pseudo_bytes() generates output that is
3101 guaranteed to be unique but not unpredictable. RAND_add is like
3102 RAND_seed, but takes an extra argument for an entropy estimate
3103 (RAND_seed always assumes full entropy).
3106 *) Do more iterations of Rabin-Miller probable prime test (specifically,
3107 3 for 1024-bit primes, 6 for 512-bit primes, 12 for 256-bit primes
3108 instead of only 2 for all lengths; see BN_prime_checks_for_size definition
3109 in crypto/bn/bn_prime.c for the complete table). This guarantees a
3110 false-positive rate of at most 2^-80 for random input.
3113 *) Rewrite ssl3_read_n (ssl/s3_pkt.c) avoiding a couple of bugs.
3116 *) New function X509_CTX_rget_chain() (renamed to X509_CTX_get1_chain
3117 in the 0.9.5 release), this returns the chain
3118 from an X509_CTX structure with a dup of the stack and all
3119 the X509 reference counts upped: so the stack will exist
3120 after X509_CTX_cleanup() has been called. Modify pkcs12.c
3123 Also make SSL_SESSION_print() print out the verify return
3127 *) Add manpage for the pkcs12 command. Also change the default
3128 behaviour so MAC iteration counts are used unless the new
3129 -nomaciter option is used. This improves file security and
3130 only older versions of MSIE (4.0 for example) need it.
3133 *) Honor the no-xxx Configure options when creating .DEF files.
3136 *) Add PKCS#10 attributes to field table: challengePassword,
3137 unstructuredName and unstructuredAddress. These are taken from
3138 draft PKCS#9 v2.0 but are compatible with v1.2 provided no
3139 international characters are used.
3141 More changes to X509_ATTRIBUTE code: allow the setting of types
3142 based on strings. Remove the 'loc' parameter when adding
3143 attributes because these will be a SET OF encoding which is sorted
3147 *) Initial changes to the 'req' utility to allow request generation
3148 automation. This will allow an application to just generate a template
3149 file containing all the field values and have req construct the
3152 Initial support for X509_ATTRIBUTE handling. Stacks of these are
3153 used all over the place including certificate requests and PKCS#7
3154 structures. They are currently handled manually where necessary with
3155 some primitive wrappers for PKCS#7. The new functions behave in a
3156 manner analogous to the X509 extension functions: they allow
3157 attributes to be looked up by NID and added.
3159 Later something similar to the X509V3 code would be desirable to
3160 automatically handle the encoding, decoding and printing of the
3161 more complex types. The string types like challengePassword can
3162 be handled by the string table functions.
3164 Also modified the multi byte string table handling. Now there is
3165 a 'global mask' which masks out certain types. The table itself
3166 can use the flag STABLE_NO_MASK to ignore the mask setting: this
3167 is useful when for example there is only one permissible type
3168 (as in countryName) and using the mask might result in no valid
3172 *) Clean up 'Finished' handling, and add functions SSL_get_finished and
3173 SSL_get_peer_finished to allow applications to obtain the latest
3174 Finished messages sent to the peer or expected from the peer,
3175 respectively. (SSL_get_peer_finished is usually the Finished message
3176 actually received from the peer, otherwise the protocol will be aborted.)
3178 As the Finished message are message digests of the complete handshake
3179 (with a total of 192 bits for TLS 1.0 and more for SSL 3.0), they can
3180 be used for external authentication procedures when the authentication
3181 provided by SSL/TLS is not desired or is not enough.
3184 *) Enhanced support for Alpha Linux is added. Now ./config checks if
3185 the host supports BWX extension and if Compaq C is present on the
3186 $PATH. Just exploiting of the BWX extension results in 20-30%
3187 performance kick for some algorithms, e.g. DES and RC4 to mention
3188 a couple. Compaq C in turn generates ~20% faster code for MD5 and
3192 *) Add support for MS "fast SGC". This is arguably a violation of the
3193 SSL3/TLS protocol. Netscape SGC does two handshakes: the first with
3194 weak crypto and after checking the certificate is SGC a second one
3195 with strong crypto. MS SGC stops the first handshake after receiving
3196 the server certificate message and sends a second client hello. Since
3197 a server will typically do all the time consuming operations before
3198 expecting any further messages from the client (server key exchange
3199 is the most expensive) there is little difference between the two.
3201 To get OpenSSL to support MS SGC we have to permit a second client
3202 hello message after we have sent server done. In addition we have to
3203 reset the MAC if we do get this second client hello.
3206 *) Add a function 'd2i_AutoPrivateKey()' this will automatically decide
3207 if a DER encoded private key is RSA or DSA traditional format. Changed
3208 d2i_PrivateKey_bio() to use it. This is only needed for the "traditional"
3209 format DER encoded private key. Newer code should use PKCS#8 format which
3210 has the key type encoded in the ASN1 structure. Added DER private key
3211 support to pkcs8 application.
3214 *) SSL 3/TLS 1 servers now don't request certificates when an anonymous
3215 ciphersuites has been selected (as required by the SSL 3/TLS 1
3216 specifications). Exception: When SSL_VERIFY_FAIL_IF_NO_PEER_CERT
3217 is set, we interpret this as a request to violate the specification
3218 (the worst that can happen is a handshake failure, and 'correct'
3219 behaviour would result in a handshake failure anyway).
3222 *) In SSL_CTX_add_session, take into account that there might be multiple
3223 SSL_SESSION structures with the same session ID (e.g. when two threads
3224 concurrently obtain them from an external cache).
3225 The internal cache can handle only one SSL_SESSION with a given ID,
3226 so if there's a conflict, we now throw out the old one to achieve
3230 *) Add OIDs for idea and blowfish in CBC mode. This will allow both
3231 to be used in PKCS#5 v2.0 and S/MIME. Also add checking to
3232 some routines that use cipher OIDs: some ciphers do not have OIDs
3233 defined and so they cannot be used for S/MIME and PKCS#5 v2.0 for
3237 *) Simplify the trust setting structure and code. Now we just have
3238 two sequences of OIDs for trusted and rejected settings. These will
3239 typically have values the same as the extended key usage extension
3240 and any application specific purposes.
3242 The trust checking code now has a default behaviour: it will just
3243 check for an object with the same NID as the passed id. Functions can
3244 be provided to override either the default behaviour or the behaviour
3245 for a given id. SSL client, server and email already have functions
3246 in place for compatibility: they check the NID and also return "trusted"
3247 if the certificate is self signed.
3250 *) Add d2i,i2d bio/fp functions for PrivateKey: these convert the
3251 traditional format into an EVP_PKEY structure.
3254 *) Add a password callback function PEM_cb() which either prompts for
3255 a password if usr_data is NULL or otherwise assumes it is a null
3256 terminated password. Allow passwords to be passed on command line
3257 environment or config files in a few more utilities.
3260 *) Add a bunch of DER and PEM functions to handle PKCS#8 format private
3261 keys. Add some short names for PKCS#8 PBE algorithms and allow them
3262 to be specified on the command line for the pkcs8 and pkcs12 utilities.
3263 Update documentation.
3266 *) Support for ASN1 "NULL" type. This could be handled before by using
3267 ASN1_TYPE but there wasn't any function that would try to read a NULL
3268 and produce an error if it couldn't. For compatibility we also have
3269 ASN1_NULL_new() and ASN1_NULL_free() functions but these are faked and
3270 don't allocate anything because they don't need to.
3273 *) Initial support for MacOS is now provided. Examine INSTALL.MacOS
3275 [Andy Polyakov, Roy Woods <roy@centicsystems.ca>]
3277 *) Rebuild of the memory allocation routines used by OpenSSL code and
3278 possibly others as well. The purpose is to make an interface that
3279 provide hooks so anyone can build a separate set of allocation and
3280 deallocation routines to be used by OpenSSL, for example memory
3281 pool implementations, or something else, which was previously hard
3282 since Malloc(), Realloc() and Free() were defined as macros having
3283 the values malloc, realloc and free, respectively (except for Win32
3284 compilations). The same is provided for memory debugging code.
3285 OpenSSL already comes with functionality to find memory leaks, but
3286 this gives people a chance to debug other memory problems.
3288 With these changes, a new set of functions and macros have appeared:
3290 CRYPTO_set_mem_debug_functions() [F]
3291 CRYPTO_get_mem_debug_functions() [F]
3292 CRYPTO_dbg_set_options() [F]
3293 CRYPTO_dbg_get_options() [F]
3294 CRYPTO_malloc_debug_init() [M]
3296 The memory debug functions are NULL by default, unless the library
3297 is compiled with CRYPTO_MDEBUG or friends is defined. If someone
3298 wants to debug memory anyway, CRYPTO_malloc_debug_init() (which
3299 gives the standard debugging functions that come with OpenSSL) or
3300 CRYPTO_set_mem_debug_functions() (tells OpenSSL to use functions
3301 provided by the library user) must be used. When the standard
3302 debugging functions are used, CRYPTO_dbg_set_options can be used to
3303 request additional information:
3304 CRYPTO_dbg_set_options(V_CYRPTO_MDEBUG_xxx) corresponds to setting
3305 the CRYPTO_MDEBUG_xxx macro when compiling the library.
3307 Also, things like CRYPTO_set_mem_functions will always give the
3308 expected result (the new set of functions is used for allocation
3309 and deallocation) at all times, regardless of platform and compiler
3312 To finish it up, some functions that were never use in any other
3313 way than through macros have a new API and new semantic:
3316 CRYPTO_dbg_realloc()
3319 All macros of value have retained their old syntax.
3320 [Richard Levitte and Bodo Moeller]
3322 *) Some S/MIME fixes. The OID for SMIMECapabilities was wrong, the
3323 ordering of SMIMECapabilities wasn't in "strength order" and there
3324 was a missing NULL in the AlgorithmIdentifier for the SHA1 signature
3328 *) Some ASN1 types with illegal zero length encoding (INTEGER,
3329 ENUMERATED and OBJECT IDENTIFIER) choked the ASN1 routines.
3330 [Frans Heymans <fheymans@isaserver.be>, modified by Steve Henson]
3332 *) Merge in my S/MIME library for OpenSSL. This provides a simple
3333 S/MIME API on top of the PKCS#7 code, a MIME parser (with enough
3334 functionality to handle multipart/signed properly) and a utility
3335 called 'smime' to call all this stuff. This is based on code I
3336 originally wrote for Celo who have kindly allowed it to be
3337 included in OpenSSL.
3340 *) Add variants des_set_key_checked and des_set_key_unchecked of
3341 des_set_key (aka des_key_sched). Global variable des_check_key
3342 decides which of these is called by des_set_key; this way
3343 des_check_key behaves as it always did, but applications and
3344 the library itself, which was buggy for des_check_key == 1,
3345 have a cleaner way to pick the version they need.
3348 *) New function PKCS12_newpass() which changes the password of a
3352 *) Modify X509_TRUST and X509_PURPOSE so it also uses a static and
3353 dynamic mix. In both cases the ids can be used as an index into the
3354 table. Also modified the X509_TRUST_add() and X509_PURPOSE_add()
3355 functions so they accept a list of the field values and the
3356 application doesn't need to directly manipulate the X509_TRUST
3360 *) Modify the ASN1_STRING_TABLE stuff so it also uses bsearch and doesn't
3364 *) Modify the way the V3 extension code looks up extensions. This now
3365 works in a similar way to the object code: we have some "standard"
3366 extensions in a static table which is searched with OBJ_bsearch()
3367 and the application can add dynamic ones if needed. The file
3368 crypto/x509v3/ext_dat.h now has the info: this file needs to be
3369 updated whenever a new extension is added to the core code and kept
3370 in ext_nid order. There is a simple program 'tabtest.c' which checks
3371 this. New extensions are not added too often so this file can readily
3372 be maintained manually.
3374 There are two big advantages in doing things this way. The extensions
3375 can be looked up immediately and no longer need to be "added" using
3376 X509V3_add_standard_extensions(): this function now does nothing.
3377 [Side note: I get *lots* of email saying the extension code doesn't
3378 work because people forget to call this function]
3379 Also no dynamic allocation is done unless new extensions are added:
3380 so if we don't add custom extensions there is no need to call
3381 X509V3_EXT_cleanup().
3384 *) Modify enc utility's salting as follows: make salting the default. Add a
3385 magic header, so unsalted files fail gracefully instead of just decrypting
3386 to garbage. This is because not salting is a big security hole, so people
3387 should be discouraged from doing it.
3390 *) Fixes and enhancements to the 'x509' utility. It allowed a message
3391 digest to be passed on the command line but it only used this
3392 parameter when signing a certificate. Modified so all relevant
3393 operations are affected by the digest parameter including the
3394 -fingerprint and -x509toreq options. Also -x509toreq choked if a
3395 DSA key was used because it didn't fix the digest.
3398 *) Initial certificate chain verify code. Currently tests the untrusted
3399 certificates for consistency with the verify purpose (which is set
3400 when the X509_STORE_CTX structure is set up) and checks the pathlength.
3402 There is a NO_CHAIN_VERIFY compilation option to keep the old behaviour:
3403 this is because it will reject chains with invalid extensions whereas
3404 every previous version of OpenSSL and SSLeay made no checks at all.
3406 Trust code: checks the root CA for the relevant trust settings. Trust
3407 settings have an initial value consistent with the verify purpose: e.g.
3408 if the verify purpose is for SSL client use it expects the CA to be
3409 trusted for SSL client use. However the default value can be changed to
3410 permit custom trust settings: one example of this would be to only trust
3411 certificates from a specific "secure" set of CAs.
3413 Also added X509_STORE_CTX_new() and X509_STORE_CTX_free() functions
3414 which should be used for version portability: especially since the
3415 verify structure is likely to change more often now.
3417 SSL integration. Add purpose and trust to SSL_CTX and SSL and functions
3418 to set them. If not set then assume SSL clients will verify SSL servers
3421 Two new options to the verify program: -untrusted allows a set of
3422 untrusted certificates to be passed in and -purpose which sets the
3423 intended purpose of the certificate. If a purpose is set then the
3424 new chain verify code is used to check extension consistency.
3427 *) Support for the authority information access extension.
3430 *) Modify RSA and DSA PEM read routines to transparently handle
3431 PKCS#8 format private keys. New *_PUBKEY_* functions that handle
3432 public keys in a format compatible with certificate
3433 SubjectPublicKeyInfo structures. Unfortunately there were already
3434 functions called *_PublicKey_* which used various odd formats so
3435 these are retained for compatibility: however the DSA variants were
3436 never in a public release so they have been deleted. Changed dsa/rsa
3437 utilities to handle the new format: note no releases ever handled public
3438 keys so we should be OK.
3440 The primary motivation for this change is to avoid the same fiasco
3441 that dogs private keys: there are several incompatible private key
3442 formats some of which are standard and some OpenSSL specific and
3443 require various evil hacks to allow partial transparent handling and
3444 even then it doesn't work with DER formats. Given the option anything
3445 other than PKCS#8 should be dumped: but the other formats have to
3446 stay in the name of compatibility.
3448 With public keys and the benefit of hindsight one standard format
3449 is used which works with EVP_PKEY, RSA or DSA structures: though
3450 it clearly returns an error if you try to read the wrong kind of key.
3452 Added a -pubkey option to the 'x509' utility to output the public key.
3453 Also rename the EVP_PKEY_get_*() to EVP_PKEY_rget_*()
3454 (renamed to EVP_PKEY_get1_*() in the OpenSSL 0.9.5 release) and add
3455 EVP_PKEY_rset_*() functions (renamed to EVP_PKEY_set1_*())
3456 that do the same as the EVP_PKEY_assign_*() except they up the
3457 reference count of the added key (they don't "swallow" the
3461 *) Fixes to crypto/x509/by_file.c the code to read in certificates and
3462 CRLs would fail if the file contained no certificates or no CRLs:
3463 added a new function to read in both types and return the number
3464 read: this means that if none are read it will be an error. The
3465 DER versions of the certificate and CRL reader would always fail
3466 because it isn't possible to mix certificates and CRLs in DER format
3467 without choking one or the other routine. Changed this to just read
3468 a certificate: this is the best we can do. Also modified the code
3469 in apps/verify.c to take notice of return codes: it was previously
3470 attempting to read in certificates from NULL pointers and ignoring
3471 any errors: this is one reason why the cert and CRL reader seemed
3472 to work. It doesn't check return codes from the default certificate
3473 routines: these may well fail if the certificates aren't installed.
3476 *) Code to support otherName option in GeneralName.
3479 *) First update to verify code. Change the verify utility
3480 so it warns if it is passed a self signed certificate:
3481 for consistency with the normal behaviour. X509_verify
3482 has been modified to it will now verify a self signed
3483 certificate if *exactly* the same certificate appears
3484 in the store: it was previously impossible to trust a
3485 single self signed certificate. This means that:
3486 openssl verify ss.pem
3487 now gives a warning about a self signed certificate but
3488 openssl verify -CAfile ss.pem ss.pem
3492 *) For servers, store verify_result in SSL_SESSION data structure
3493 (and add it to external session representation).
3494 This is needed when client certificate verifications fails,
3495 but an application-provided verification callback (set by
3496 SSL_CTX_set_cert_verify_callback) allows accepting the session
3497 anyway (i.e. leaves x509_store_ctx->error != X509_V_OK
3498 but returns 1): When the session is reused, we have to set
3499 ssl->verify_result to the appropriate error code to avoid
3501 [Bodo Moeller, problem pointed out by Lutz Jaenicke]
3503 *) Fix a bug in the new PKCS#7 code: it didn't consider the
3504 case in PKCS7_dataInit() where the signed PKCS7 structure
3505 didn't contain any existing data because it was being created.
3506 [Po-Cheng Chen <pocheng@nst.com.tw>, slightly modified by Steve Henson]
3508 *) Add a salt to the key derivation routines in enc.c. This
3509 forms the first 8 bytes of the encrypted file. Also add a
3510 -S option to allow a salt to be input on the command line.
3513 *) New function X509_cmp(). Oddly enough there wasn't a function
3514 to compare two certificates. We do this by working out the SHA1
3515 hash and comparing that. X509_cmp() will be needed by the trust
3519 *) SSL_get1_session() is like SSL_get_session(), but increments
3520 the reference count in the SSL_SESSION returned.
3521 [Geoff Thorpe <geoff@eu.c2.net>]
3523 *) Fix for 'req': it was adding a null to request attributes.
3524 Also change the X509_LOOKUP and X509_INFO code to handle
3525 certificate auxiliary information.
3528 *) Add support for 40 and 64 bit RC2 and RC4 algorithms: document
3532 *) Add the possibility to add extra information to the memory leak
3533 detecting output, to form tracebacks, showing from where each
3534 allocation was originated: CRYPTO_push_info("constant string") adds
3535 the string plus current file name and line number to a per-thread
3536 stack, CRYPTO_pop_info() does the obvious, CRYPTO_remove_all_info()
3537 is like calling CYRPTO_pop_info() until the stack is empty.
3538 Also updated memory leak detection code to be multi-thread-safe.
3541 *) Add options -text and -noout to pkcs7 utility and delete the
3542 encryption options which never did anything. Update docs.
3545 *) Add options to some of the utilities to allow the pass phrase
3546 to be included on either the command line (not recommended on
3547 OSes like Unix) or read from the environment. Update the
3548 manpages and fix a few bugs.
3551 *) Add a few manpages for some of the openssl commands.
3554 *) Fix the -revoke option in ca. It was freeing up memory twice,
3555 leaking and not finding already revoked certificates.
3558 *) Extensive changes to support certificate auxiliary information.
3559 This involves the use of X509_CERT_AUX structure and X509_AUX
3560 functions. An X509_AUX function such as PEM_read_X509_AUX()
3561 can still read in a certificate file in the usual way but it
3562 will also read in any additional "auxiliary information". By
3563 doing things this way a fair degree of compatibility can be
3564 retained: existing certificates can have this information added
3565 using the new 'x509' options.
3567 Current auxiliary information includes an "alias" and some trust
3568 settings. The trust settings will ultimately be used in enhanced
3569 certificate chain verification routines: currently a certificate
3570 can only be trusted if it is self signed and then it is trusted
3574 *) Fix assembler for Alpha (tested only on DEC OSF not Linux or *BSD).
3575 The problem was that one of the replacement routines had not been working
3576 since SSLeay releases. For now the offending routine has been replaced
3577 with non-optimised assembler. Even so, this now gives around 95%
3578 performance improvement for 1024 bit RSA signs.
3581 *) Hack to fix PKCS#7 decryption when used with some unorthodox RC2
3582 handling. Most clients have the effective key size in bits equal to
3583 the key length in bits: so a 40 bit RC2 key uses a 40 bit (5 byte) key.
3584 A few however don't do this and instead use the size of the decrypted key
3585 to determine the RC2 key length and the AlgorithmIdentifier to determine
3586 the effective key length. In this case the effective key length can still
3587 be 40 bits but the key length can be 168 bits for example. This is fixed
3588 by manually forcing an RC2 key into the EVP_PKEY structure because the
3589 EVP code can't currently handle unusual RC2 key sizes: it always assumes
3590 the key length and effective key length are equal.
3593 *) Add a bunch of functions that should simplify the creation of
3594 X509_NAME structures. Now you should be able to do:
3595 X509_NAME_add_entry_by_txt(nm, "CN", MBSTRING_ASC, "Steve", -1, -1, 0);
3596 and have it automatically work out the correct field type and fill in
3597 the structures. The more adventurous can try:
3598 X509_NAME_add_entry_by_txt(nm, field, MBSTRING_UTF8, str, -1, -1, 0);
3599 and it will (hopefully) work out the correct multibyte encoding.
3602 *) Change the 'req' utility to use the new field handling and multibyte
3603 copy routines. Before the DN field creation was handled in an ad hoc
3604 way in req, ca, and x509 which was rather broken and didn't support
3605 BMPStrings or UTF8Strings. Since some software doesn't implement
3606 BMPStrings or UTF8Strings yet, they can be enabled using the config file
3607 using the dirstring_type option. See the new comment in the default
3608 openssl.cnf for more info.
3611 *) Make crypto/rand/md_rand.c more robust:
3612 - Assure unique random numbers after fork().
3613 - Make sure that concurrent threads access the global counter and
3614 md serializably so that we never lose entropy in them
3615 or use exactly the same state in multiple threads.
3616 Access to the large state is not always serializable because
3617 the additional locking could be a performance killer, and
3618 md should be large enough anyway.
3621 *) New file apps/app_rand.c with commonly needed functionality
3622 for handling the random seed file.
3624 Use the random seed file in some applications that previously did not:
3626 dsaparam -genkey (which also ignored its '-rand' option),
3629 x509 (when signing).
3630 Except on systems with /dev/urandom, it is crucial to have a random
3631 seed file at least for key creation, DSA signing, and for DH exchanges;
3632 for RSA signatures we could do without one.
3634 gendh and gendsa (unlike genrsa) used to read only the first byte
3635 of each file listed in the '-rand' option. The function as previously
3636 found in genrsa is now in app_rand.c and is used by all programs
3637 that support '-rand'.
3640 *) In RAND_write_file, use mode 0600 for creating files;
3641 don't just chmod when it may be too late.
3644 *) Report an error from X509_STORE_load_locations
3645 when X509_LOOKUP_load_file or X509_LOOKUP_add_dir failed.
3648 *) New function ASN1_mbstring_copy() this copies a string in either
3649 ASCII, Unicode, Universal (4 bytes per character) or UTF8 format
3650 into an ASN1_STRING type. A mask of permissible types is passed
3651 and it chooses the "minimal" type to use or an error if not type
3655 *) Add function equivalents to the various macros in asn1.h. The old
3656 macros are retained with an M_ prefix. Code inside the library can
3657 use the M_ macros. External code (including the openssl utility)
3658 should *NOT* in order to be "shared library friendly".
3661 *) Add various functions that can check a certificate's extensions
3662 to see if it usable for various purposes such as SSL client,
3663 server or S/MIME and CAs of these types. This is currently
3664 VERY EXPERIMENTAL but will ultimately be used for certificate chain
3665 verification. Also added a -purpose flag to x509 utility to
3666 print out all the purposes.
3669 *) Add a CRYPTO_EX_DATA to X509 certificate structure and associated
3673 *) New X509V3_{X509,CRL,REVOKED}_get_d2i() functions. These will search
3674 for, obtain and decode and extension and obtain its critical flag.
3675 This allows all the necessary extension code to be handled in a
3676 single function call.
3679 *) RC4 tune-up featuring 30-40% performance improvement on most RISC
3680 platforms. See crypto/rc4/rc4_enc.c for further details.
3683 *) New -noout option to asn1parse. This causes no output to be produced
3684 its main use is when combined with -strparse and -out to extract data
3685 from a file (which may not be in ASN.1 format).
3688 *) Fix for pkcs12 program. It was hashing an invalid certificate pointer
3689 when producing the local key id.
3690 [Richard Levitte <levitte@stacken.kth.se>]
3692 *) New option -dhparam in s_server. This allows a DH parameter file to be
3693 stated explicitly. If it is not stated then it tries the first server
3694 certificate file. The previous behaviour hard coded the filename
3698 *) Add -pubin and -pubout options to the rsa and dsa commands. These allow
3699 a public key to be input or output. For example:
3700 openssl rsa -in key.pem -pubout -out pubkey.pem
3701 Also added necessary DSA public key functions to handle this.
3704 *) Fix so PKCS7_dataVerify() doesn't crash if no certificates are contained
3705 in the message. This was handled by allowing
3706 X509_find_by_issuer_and_serial() to tolerate a NULL passed to it.
3707 [Steve Henson, reported by Sampo Kellomaki <sampo@mail.neuronio.pt>]
3709 *) Fix for bug in d2i_ASN1_bytes(): other ASN1 functions add an extra null
3710 to the end of the strings whereas this didn't. This would cause problems
3711 if strings read with d2i_ASN1_bytes() were later modified.
3712 [Steve Henson, reported by Arne Ansper <arne@ats.cyber.ee>]
3714 *) Fix for base64 decode bug. When a base64 bio reads only one line of
3715 data and it contains EOF it will end up returning an error. This is
3716 caused by input 46 bytes long. The cause is due to the way base64
3717 BIOs find the start of base64 encoded data. They do this by trying a
3718 trial decode on each line until they find one that works. When they
3719 do a flag is set and it starts again knowing it can pass all the
3720 data directly through the decoder. Unfortunately it doesn't reset
3721 the context it uses. This means that if EOF is reached an attempt
3722 is made to pass two EOFs through the context and this causes the
3723 resulting error. This can also cause other problems as well. As is
3724 usual with these problems it takes *ages* to find and the fix is
3725 trivial: move one line.
3726 [Steve Henson, reported by ian@uns.ns.ac.yu (Ivan Nejgebauer) ]
3728 *) Ugly workaround to get s_client and s_server working under Windows. The
3729 old code wouldn't work because it needed to select() on sockets and the
3730 tty (for keypresses and to see if data could be written). Win32 only
3731 supports select() on sockets so we select() with a 1s timeout on the
3732 sockets and then see if any characters are waiting to be read, if none
3733 are present then we retry, we also assume we can always write data to
3734 the tty. This isn't nice because the code then blocks until we've
3735 received a complete line of data and it is effectively polling the
3736 keyboard at 1s intervals: however it's quite a bit better than not
3737 working at all :-) A dedicated Windows application might handle this
3738 with an event loop for example.
3741 *) Enhance RSA_METHOD structure. Now there are two extra methods, rsa_sign
3742 and rsa_verify. When the RSA_FLAGS_SIGN_VER option is set these functions
3743 will be called when RSA_sign() and RSA_verify() are used. This is useful
3744 if rsa_pub_dec() and rsa_priv_enc() equivalents are not available.
3745 For this to work properly RSA_public_decrypt() and RSA_private_encrypt()
3746 should *not* be used: RSA_sign() and RSA_verify() must be used instead.
3747 This necessitated the support of an extra signature type NID_md5_sha1
3748 for SSL signatures and modifications to the SSL library to use it instead
3749 of calling RSA_public_decrypt() and RSA_private_encrypt().
3752 *) Add new -verify -CAfile and -CApath options to the crl program, these
3753 will lookup a CRL issuers certificate and verify the signature in a
3754 similar way to the verify program. Tidy up the crl program so it
3755 no longer accesses structures directly. Make the ASN1 CRL parsing a bit
3756 less strict. It will now permit CRL extensions even if it is not
3757 a V2 CRL: this will allow it to tolerate some broken CRLs.
3760 *) Initialize all non-automatic variables each time one of the openssl
3761 sub-programs is started (this is necessary as they may be started
3762 multiple times from the "OpenSSL>" prompt).
3763 [Lennart Bang, Bodo Moeller]
3765 *) Preliminary compilation option RSA_NULL which disables RSA crypto without
3766 removing all other RSA functionality (this is what NO_RSA does). This
3767 is so (for example) those in the US can disable those operations covered
3768 by the RSA patent while allowing storage and parsing of RSA keys and RSA
3772 *) Non-copying interface to BIO pairs.
3773 (still largely untested)
3776 *) New function ANS1_tag2str() to convert an ASN1 tag to a descriptive
3777 ASCII string. This was handled independently in various places before.
3780 *) New functions UTF8_getc() and UTF8_putc() that parse and generate
3781 UTF8 strings a character at a time.
3784 *) Use client_version from client hello to select the protocol
3785 (s23_srvr.c) and for RSA client key exchange verification
3786 (s3_srvr.c), as required by the SSL 3.0/TLS 1.0 specifications.
3789 *) Add various utility functions to handle SPKACs, these were previously
3790 handled by poking round in the structure internals. Added new function
3791 NETSCAPE_SPKI_print() to print out SPKAC and a new utility 'spkac' to
3792 print, verify and generate SPKACs. Based on an original idea from
3793 Massimiliano Pala <madwolf@comune.modena.it> but extensively modified.
3796 *) RIPEMD160 is operational on all platforms and is back in 'make test'.
3799 *) Allow the config file extension section to be overwritten on the
3800 command line. Based on an original idea from Massimiliano Pala
3801 <madwolf@comune.modena.it>. The new option is called -extensions
3802 and can be applied to ca, req and x509. Also -reqexts to override
3803 the request extensions in req and -crlexts to override the crl extensions
3807 *) Add new feature to the SPKAC handling in ca. Now you can include
3808 the same field multiple times by preceding it by "XXXX." for example:
3811 this is the same syntax as used in the req config file.
3814 *) Allow certificate extensions to be added to certificate requests. These
3815 are specified in a 'req_extensions' option of the req section of the
3816 config file. They can be printed out with the -text option to req but
3817 are otherwise ignored at present.
3820 *) Fix a horrible bug in enc_read() in crypto/evp/bio_enc.c: if the first
3821 data read consists of only the final block it would not decrypted because
3822 EVP_CipherUpdate() would correctly report zero bytes had been decrypted.
3823 A misplaced 'break' also meant the decrypted final block might not be
3824 copied until the next read.
3827 *) Initial support for DH_METHOD. Again based on RSA_METHOD. Also added
3828 a few extra parameters to the DH structure: these will be useful if
3829 for example we want the value of 'q' or implement X9.42 DH.
3832 *) Initial support for DSA_METHOD. This is based on the RSA_METHOD and
3833 provides hooks that allow the default DSA functions or functions on a
3834 "per key" basis to be replaced. This allows hardware acceleration and
3835 hardware key storage to be handled without major modification to the
3836 library. Also added low level modexp hooks and CRYPTO_EX structure and
3837 associated functions.
3840 *) Add a new flag to memory BIOs, BIO_FLAG_MEM_RDONLY. This marks the BIO
3841 as "read only": it can't be written to and the buffer it points to will
3842 not be freed. Reading from a read only BIO is much more efficient than
3843 a normal memory BIO. This was added because there are several times when
3844 an area of memory needs to be read from a BIO. The previous method was
3845 to create a memory BIO and write the data to it, this results in two
3846 copies of the data and an O(n^2) reading algorithm. There is a new
3847 function BIO_new_mem_buf() which creates a read only memory BIO from
3848 an area of memory. Also modified the PKCS#7 routines to use read only
3852 *) Bugfix: ssl23_get_client_hello did not work properly when called in
3853 state SSL23_ST_SR_CLNT_HELLO_B, i.e. when the first 7 bytes of
3854 a SSLv2-compatible client hello for SSLv3 or TLSv1 could be read,
3855 but a retry condition occured while trying to read the rest.
3858 *) The PKCS7_ENC_CONTENT_new() function was setting the content type as
3859 NID_pkcs7_encrypted by default: this was wrong since this should almost
3860 always be NID_pkcs7_data. Also modified the PKCS7_set_type() to handle
3861 the encrypted data type: this is a more sensible place to put it and it
3862 allows the PKCS#12 code to be tidied up that duplicated this
3866 *) Changed obj_dat.pl script so it takes its input and output files on
3867 the command line. This should avoid shell escape redirection problems
3871 *) Initial support for certificate extension requests, these are included
3872 in things like Xenroll certificate requests. Included functions to allow
3873 extensions to be obtained and added.
3876 *) -crlf option to s_client and s_server for sending newlines as
3877 CRLF (as required by many protocols).
3880 Changes between 0.9.3a and 0.9.4 [09 Aug 1999]
3882 *) Install libRSAglue.a when OpenSSL is built with RSAref.
3883 [Ralf S. Engelschall]
3885 *) A few more ``#ifndef NO_FP_API / #endif'' pairs for consistency.
3886 [Andrija Antonijevic <TheAntony2@bigfoot.com>]
3888 *) Fix -startdate and -enddate (which was missing) arguments to 'ca'
3892 *) New function DSA_dup_DH, which duplicates DSA parameters/keys as
3893 DH parameters/keys (q is lost during that conversion, but the resulting
3894 DH parameters contain its length).
3896 For 1024-bit p, DSA_generate_parameters followed by DSA_dup_DH is
3897 much faster than DH_generate_parameters (which creates parameters
3898 where p = 2*q + 1), and also the smaller q makes DH computations
3899 much more efficient (160-bit exponentiation instead of 1024-bit
3900 exponentiation); so this provides a convenient way to support DHE
3901 ciphersuites in SSL/TLS servers (see ssl/ssltest.c). It is of
3902 utter importance to use
3903 SSL_CTX_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
3905 SSL_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
3906 when such DH parameters are used, because otherwise small subgroup
3907 attacks may become possible!
3910 *) Avoid memory leak in i2d_DHparams.
3913 *) Allow the -k option to be used more than once in the enc program:
3914 this allows the same encrypted message to be read by multiple recipients.
3917 *) New function OBJ_obj2txt(buf, buf_len, a, no_name), this converts
3918 an ASN1_OBJECT to a text string. If the "no_name" parameter is set then
3919 it will always use the numerical form of the OID, even if it has a short
3923 *) Added an extra RSA flag: RSA_FLAG_EXT_PKEY. Previously the rsa_mod_exp
3924 method only got called if p,q,dmp1,dmq1,iqmp components were present,
3925 otherwise bn_mod_exp was called. In the case of hardware keys for example
3926 no private key components need be present and it might store extra data
3927 in the RSA structure, which cannot be accessed from bn_mod_exp.
3928 By setting RSA_FLAG_EXT_PKEY rsa_mod_exp will always be called for
3929 private key operations.
3932 *) Added support for SPARC Linux.
3935 *) pem_password_cb function type incompatibly changed from
3936 typedef int pem_password_cb(char *buf, int size, int rwflag);
3938 ....(char *buf, int size, int rwflag, void *userdata);
3939 so that applications can pass data to their callbacks:
3940 The PEM[_ASN1]_{read,write}... functions and macros now take an
3941 additional void * argument, which is just handed through whenever
3942 the password callback is called.
3943 [Damien Miller <dmiller@ilogic.com.au>; tiny changes by Bodo Moeller]
3945 New function SSL_CTX_set_default_passwd_cb_userdata.
3947 Compatibility note: As many C implementations push function arguments
3948 onto the stack in reverse order, the new library version is likely to
3949 interoperate with programs that have been compiled with the old
3950 pem_password_cb definition (PEM_whatever takes some data that
3951 happens to be on the stack as its last argument, and the callback
3952 just ignores this garbage); but there is no guarantee whatsoever that
3955 *) The -DPLATFORM="\"$(PLATFORM)\"" definition and the similar -DCFLAGS=...
3956 (both in crypto/Makefile.ssl for use by crypto/cversion.c) caused
3957 problems not only on Windows, but also on some Unix platforms.
3958 To avoid problematic command lines, these definitions are now in an
3959 auto-generated file crypto/buildinf.h (created by crypto/Makefile.ssl
3960 for standard "make" builds, by util/mk1mf.pl for "mk1mf" builds).
3963 *) MIPS III/IV assembler module is reimplemented.
3966 *) More DES library cleanups: remove references to srand/rand and
3967 delete an unused file.
3970 *) Add support for the the free Netwide assembler (NASM) under Win32,
3971 since not many people have MASM (ml) and it can be hard to obtain.
3972 This is currently experimental but it seems to work OK and pass all
3973 the tests. Check out INSTALL.W32 for info.
3976 *) Fix memory leaks in s3_clnt.c: All non-anonymous SSL3/TLS1 connections
3977 without temporary keys kept an extra copy of the server key,
3978 and connections with temporary keys did not free everything in case
3982 *) New function RSA_check_key and new openssl rsa option -check
3983 for verifying the consistency of RSA keys.
3984 [Ulf Moeller, Bodo Moeller]
3986 *) Various changes to make Win32 compile work:
3987 1. Casts to avoid "loss of data" warnings in p5_crpt2.c
3988 2. Change unsigned int to int in b_dump.c to avoid "signed/unsigned
3989 comparison" warnings.
3990 3. Add sk_<TYPE>_sort to DEF file generator and do make update.
3993 *) Add a debugging option to PKCS#5 v2 key generation function: when
3994 you #define DEBUG_PKCS5V2 passwords, salts, iteration counts and
3995 derived keys are printed to stderr.
3998 *) Copy the flags in ASN1_STRING_dup().
3999 [Roman E. Pavlov <pre@mo.msk.ru>]
4001 *) The x509 application mishandled signing requests containing DSA
4002 keys when the signing key was also DSA and the parameters didn't match.
4004 It was supposed to omit the parameters when they matched the signing key:
4005 the verifying software was then supposed to automatically use the CA's
4006 parameters if they were absent from the end user certificate.
4008 Omitting parameters is no longer recommended. The test was also
4009 the wrong way round! This was probably due to unusual behaviour in
4010 EVP_cmp_parameters() which returns 1 if the parameters match.
4011 This meant that parameters were omitted when they *didn't* match and
4012 the certificate was useless. Certificates signed with 'ca' didn't have
4014 [Steve Henson, reported by Doug Erickson <Doug.Erickson@Part.NET>]
4016 *) Memory leak checking (-DCRYPTO_MDEBUG) had some problems.
4017 The interface is as follows:
4018 Applications can use
4019 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON) aka MemCheck_start(),
4020 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_OFF) aka MemCheck_stop();
4021 "off" is now the default.
4022 The library internally uses
4023 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_DISABLE) aka MemCheck_off(),
4024 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ENABLE) aka MemCheck_on()
4025 to disable memory-checking temporarily.
4027 Some inconsistent states that previously were possible (and were
4028 even the default) are now avoided.
4030 -DCRYPTO_MDEBUG_TIME is new and additionally stores the current time
4031 with each memory chunk allocated; this is occasionally more helpful
4032 than just having a counter.
4034 -DCRYPTO_MDEBUG_THREAD is also new and adds the thread ID.
4036 -DCRYPTO_MDEBUG_ALL enables all of the above, plus any future
4040 *) Introduce "mode" for SSL structures (with defaults in SSL_CTX),
4041 which largely parallels "options", but is for changing API behaviour,
4042 whereas "options" are about protocol behaviour.
4043 Initial "mode" flags are:
4045 SSL_MODE_ENABLE_PARTIAL_WRITE Allow SSL_write to report success when
4046 a single record has been written.
4047 SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER Don't insist that SSL_write
4048 retries use the same buffer location.
4049 (But all of the contents must be
4053 *) Bugfix: SSL_set_options ignored its parameter, only SSL_CTX_set_options
4056 *) Fix problems with no-hmac etc.
4057 [Ulf Möller, pointed out by Brian Wellington <bwelling@tislabs.com>]
4059 *) New functions RSA_get_default_method(), RSA_set_method() and
4060 RSA_get_method(). These allows replacement of RSA_METHODs without having
4061 to mess around with the internals of an RSA structure.
4064 *) Fix memory leaks in DSA_do_sign and DSA_is_prime.
4065 Also really enable memory leak checks in openssl.c and in some
4067 [Chad C. Mulligan, Bodo Moeller]
4069 *) Fix a bug in d2i_ASN1_INTEGER() and i2d_ASN1_INTEGER() which can mess
4070 up the length of negative integers. This has now been simplified to just
4071 store the length when it is first determined and use it later, rather
4072 than trying to keep track of where data is copied and updating it to
4074 [Steve Henson, reported by Brien Wheeler
4075 <bwheeler@authentica-security.com>]
4077 *) Add a new function PKCS7_signatureVerify. This allows the verification
4078 of a PKCS#7 signature but with the signing certificate passed to the
4079 function itself. This contrasts with PKCS7_dataVerify which assumes the
4080 certificate is present in the PKCS#7 structure. This isn't always the
4081 case: certificates can be omitted from a PKCS#7 structure and be
4082 distributed by "out of band" means (such as a certificate database).
4085 *) Complete the PEM_* macros with DECLARE_PEM versions to replace the
4086 function prototypes in pem.h, also change util/mkdef.pl to add the
4087 necessary function names.
4090 *) mk1mf.pl (used by Windows builds) did not properly read the
4091 options set by Configure in the top level Makefile, and Configure
4092 was not even able to write more than one option correctly.
4093 Fixed, now "no-idea no-rc5 -DCRYPTO_MDEBUG" etc. works as intended.
4096 *) New functions CONF_load_bio() and CONF_load_fp() to allow a config
4097 file to be loaded from a BIO or FILE pointer. The BIO version will
4098 for example allow memory BIOs to contain config info.
4101 *) New function "CRYPTO_num_locks" that returns CRYPTO_NUM_LOCKS.
4102 Whoever hopes to achieve shared-library compatibility across versions
4103 must use this, not the compile-time macro.
4104 (Exercise 0.9.4: Which is the minimum library version required by
4106 Note: All this applies only to multi-threaded programs, others don't
4110 *) Add missing case to s3_clnt.c state machine -- one of the new SSL tests
4111 through a BIO pair triggered the default case, i.e.
4112 SSLerr(...,SSL_R_UNKNOWN_STATE).
4115 *) New "BIO pair" concept (crypto/bio/bss_bio.c) so that applications
4116 can use the SSL library even if none of the specific BIOs is
4120 *) Fix a bug in i2d_DSAPublicKey() which meant it returned the wrong value
4121 for the encoded length.
4122 [Jeon KyoungHo <khjeon@sds.samsung.co.kr>]
4124 *) Add initial documentation of the X509V3 functions.
4127 *) Add a new pair of functions PEM_write_PKCS8PrivateKey() and
4128 PEM_write_bio_PKCS8PrivateKey() that are equivalent to
4129 PEM_write_PrivateKey() and PEM_write_bio_PrivateKey() but use the more
4130 secure PKCS#8 private key format with a high iteration count.
4133 *) Fix determination of Perl interpreter: A perl or perl5
4134 _directory_ in $PATH was also accepted as the interpreter.
4135 [Ralf S. Engelschall]
4137 *) Fix demos/sign/sign.c: well there wasn't anything strictly speaking
4138 wrong with it but it was very old and did things like calling
4139 PEM_ASN1_read() directly and used MD5 for the hash not to mention some
4143 *) Fix demos/selfsign.c: it used obsolete and deleted functions, changed
4144 to use the new extension code.
4147 *) Implement the PEM_read/PEM_write functions in crypto/pem/pem_all.c
4148 with macros. This should make it easier to change their form, add extra
4149 arguments etc. Fix a few PEM prototypes which didn't have cipher as a
4153 *) Add to configuration table a new entry that can specify an alternative
4154 name for unistd.h (for pre-POSIX systems); we need this for NeXTstep,
4155 according to Mark Crispin <MRC@Panda.COM>.
4159 *) DES CBC did not update the IV. Weird.
4162 des_cbc_encrypt does not update the IV, but des_ncbc_encrypt does.
4163 Changing the behaviour of the former might break existing programs --
4164 where IV updating is needed, des_ncbc_encrypt can be used.
4167 *) When bntest is run from "make test" it drives bc to check its
4168 calculations, as well as internally checking them. If an internal check
4169 fails, it needs to cause bc to give a non-zero result or make test carries
4170 on without noticing the failure. Fixed.
4173 *) DES library cleanups.
4176 *) Add support for PKCS#5 v2.0 PBE algorithms. This will permit PKCS#8 to be
4177 used with any cipher unlike PKCS#5 v1.5 which can at most handle 64 bit
4178 ciphers. NOTE: although the key derivation function has been verified
4179 against some published test vectors it has not been extensively tested
4180 yet. Added a -v2 "cipher" option to pkcs8 application to allow the use
4184 *) Instead of "mkdir -p", which is not fully portable, use new
4185 Perl script "util/mkdir-p.pl".
4188 *) Rewrite the way password based encryption (PBE) is handled. It used to
4189 assume that the ASN1 AlgorithmIdentifier parameter was a PBEParameter
4190 structure. This was true for the PKCS#5 v1.5 and PKCS#12 PBE algorithms
4191 but doesn't apply to PKCS#5 v2.0 where it can be something else. Now
4192 the 'parameter' field of the AlgorithmIdentifier is passed to the
4193 underlying key generation function so it must do its own ASN1 parsing.
4194 This has also changed the EVP_PBE_CipherInit() function which now has a
4195 'parameter' argument instead of literal salt and iteration count values
4196 and the function EVP_PBE_ALGOR_CipherInit() has been deleted.
4199 *) Support for PKCS#5 v1.5 compatible password based encryption algorithms
4200 and PKCS#8 functionality. New 'pkcs8' application linked to openssl.
4201 Needed to change the PEM_STRING_EVP_PKEY value which was just "PRIVATE
4202 KEY" because this clashed with PKCS#8 unencrypted string. Since this
4203 value was just used as a "magic string" and not used directly its
4204 value doesn't matter.
4207 *) Introduce some semblance of const correctness to BN. Shame C doesn't
4211 *) "linux-sparc64" configuration (ultrapenguin).
4212 [Ray Miller <ray.miller@oucs.ox.ac.uk>]
4213 "linux-sparc" configuration.
4214 [Christian Forster <fo@hawo.stw.uni-erlangen.de>]
4216 *) config now generates no-xxx options for missing ciphers.
4219 *) Support the EBCDIC character set (work in progress).
4220 File ebcdic.c not yet included because it has a different license.
4221 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
4223 *) Support BS2000/OSD-POSIX.
4224 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
4226 *) Make callbacks for key generation use void * instead of char *.
4229 *) Make S/MIME samples compile (not yet tested).
4232 *) Additional typesafe stacks.
4235 *) New configuration variants "bsdi-elf-gcc" (BSD/OS 4.x).
4239 Changes between 0.9.3 and 0.9.3a [29 May 1999]
4241 *) New configuration variant "sco5-gcc".
4243 *) Updated some demos.
4244 [Sean O Riordain, Wade Scholine]
4246 *) Add missing BIO_free at exit of pkcs12 application.
4249 *) Fix memory leak in conf.c.
4252 *) Updates for Win32 to assembler version of MD5.
4255 *) Set #! path to perl in apps/der_chop to where we found it
4256 instead of using a fixed path.
4259 *) SHA library changes for irix64-mips4-cc.
4262 *) Improvements for VMS support.
4266 Changes between 0.9.2b and 0.9.3 [24 May 1999]
4268 *) Bignum library bug fix. IRIX 6 passes "make test" now!
4269 This also avoids the problems with SC4.2 and unpatched SC5.
4270 [Andy Polyakov <appro@fy.chalmers.se>]
4272 *) New functions sk_num, sk_value and sk_set to replace the previous macros.
4273 These are required because of the typesafe stack would otherwise break
4274 existing code. If old code used a structure member which used to be STACK
4275 and is now STACK_OF (for example cert in a PKCS7_SIGNED structure) with
4276 sk_num or sk_value it would produce an error because the num, data members
4277 are not present in STACK_OF. Now it just produces a warning. sk_set
4278 replaces the old method of assigning a value to sk_value
4279 (e.g. sk_value(x, i) = y) which the library used in a few cases. Any code
4280 that does this will no longer work (and should use sk_set instead) but
4281 this could be regarded as a "questionable" behaviour anyway.
4284 *) Fix most of the other PKCS#7 bugs. The "experimental" code can now
4285 correctly handle encrypted S/MIME data.
4288 *) Change type of various DES function arguments from des_cblock
4289 (which means, in function argument declarations, pointer to char)
4290 to des_cblock * (meaning pointer to array with 8 char elements),
4291 which allows the compiler to do more typechecking; it was like
4292 that back in SSLeay, but with lots of ugly casts.
4294 Introduce new type const_des_cblock.
4297 *) Reorganise the PKCS#7 library and get rid of some of the more obvious
4298 problems: find RecipientInfo structure that matches recipient certificate
4299 and initialise the ASN1 structures properly based on passed cipher.
4302 *) Belatedly make the BN tests actually check the results.
4305 *) Fix the encoding and decoding of negative ASN1 INTEGERS and conversion
4306 to and from BNs: it was completely broken. New compilation option
4307 NEG_PUBKEY_BUG to allow for some broken certificates that encode public
4308 key elements as negative integers.
4311 *) Reorganize and speed up MD5.
4312 [Andy Polyakov <appro@fy.chalmers.se>]
4315 [Richard Levitte <richard@levitte.org>]
4317 *) New option -out to asn1parse to allow the parsed structure to be
4318 output to a file. This is most useful when combined with the -strparse
4319 option to examine the output of things like OCTET STRINGS.
4322 *) Make SSL library a little more fool-proof by not requiring any longer
4323 that SSL_set_{accept,connect}_state be called before
4324 SSL_{accept,connect} may be used (SSL_set_..._state is omitted
4325 in many applications because usually everything *appeared* to work as
4326 intended anyway -- now it really works as intended).
4329 *) Move openssl.cnf out of lib/.
4332 *) Fix various things to let OpenSSL even pass ``egcc -pipe -O2 -Wall
4333 -Wshadow -Wpointer-arith -Wcast-align -Wmissing-prototypes
4334 -Wmissing-declarations -Wnested-externs -Winline'' with EGCS 1.1.2+
4335 [Ralf S. Engelschall]
4337 *) Various fixes to the EVP and PKCS#7 code. It may now be able to
4338 handle PKCS#7 enveloped data properly.
4339 [Sebastian Akerman <sak@parallelconsulting.com>, modified by Steve]
4341 *) Create a duplicate of the SSL_CTX's CERT in SSL_new instead of
4342 copying pointers. The cert_st handling is changed by this in
4343 various ways (and thus what used to be known as ctx->default_cert
4344 is now called ctx->cert, since we don't resort to s->ctx->[default_]cert
4345 any longer when s->cert does not give us what we need).
4346 ssl_cert_instantiate becomes obsolete by this change.
4347 As soon as we've got the new code right (possibly it already is?),
4348 we have solved a couple of bugs of the earlier code where s->cert
4349 was used as if it could not have been shared with other SSL structures.
4351 Note that using the SSL API in certain dirty ways now will result
4352 in different behaviour than observed with earlier library versions:
4353 Changing settings for an SSL_CTX *ctx after having done s = SSL_new(ctx)
4354 does not influence s as it used to.
4356 In order to clean up things more thoroughly, inside SSL_SESSION
4357 we don't use CERT any longer, but a new structure SESS_CERT
4358 that holds per-session data (if available); currently, this is
4359 the peer's certificate chain and, for clients, the server's certificate
4360 and temporary key. CERT holds only those values that can have
4361 meaningful defaults in an SSL_CTX.
4364 *) New function X509V3_EXT_i2d() to create an X509_EXTENSION structure
4365 from the internal representation. Various PKCS#7 fixes: remove some
4366 evil casts and set the enc_dig_alg field properly based on the signing
4370 *) Allow PKCS#12 password to be set from the command line or the
4371 environment. Let 'ca' get its config file name from the environment
4372 variables "OPENSSL_CONF" or "SSLEAY_CONF" (for consistency with 'req'
4376 *) Allow certificate policies extension to use an IA5STRING for the
4377 organization field. This is contrary to the PKIX definition but
4378 VeriSign uses it and IE5 only recognises this form. Document 'x509'
4382 *) Add PEDANTIC compiler flag to allow compilation with gcc -pedantic,
4383 without disallowing inline assembler and the like for non-pedantic builds.
4386 *) Support Borland C++ builder.
4387 [Janez Jere <jj@void.si>, modified by Ulf Möller]
4392 *) SHA-1 cleanups and performance enhancements.
4393 [Andy Polyakov <appro@fy.chalmers.se>]
4395 *) Sparc v8plus assembler for the bignum library.
4396 [Andy Polyakov <appro@fy.chalmers.se>]
4398 *) Accept any -xxx and +xxx compiler options in Configure.
4401 *) Update HPUX configuration.
4404 *) Add missing sk_<type>_unshift() function to safestack.h
4405 [Ralf S. Engelschall]
4407 *) New function SSL_CTX_use_certificate_chain_file that sets the
4408 "extra_cert"s in addition to the certificate. (This makes sense
4409 only for "PEM" format files, as chains as a whole are not
4413 *) Support verify_depth from the SSL API.
4414 x509_vfy.c had what can be considered an off-by-one-error:
4415 Its depth (which was not part of the external interface)
4416 was actually counting the number of certificates in a chain;
4417 now it really counts the depth.
4420 *) Bugfix in crypto/x509/x509_cmp.c: The SSLerr macro was used
4421 instead of X509err, which often resulted in confusing error
4422 messages since the error codes are not globally unique
4423 (e.g. an alleged error in ssl3_accept when a certificate
4424 didn't match the private key).
4426 *) New function SSL_CTX_set_session_id_context that allows to set a default
4427 value (so that you don't need SSL_set_session_id_context for each
4428 connection using the SSL_CTX).
4431 *) OAEP decoding bug fix.
4434 *) Support INSTALL_PREFIX for package builders, as proposed by
4438 *) New Configure options "threads" and "no-threads". For systems
4439 where the proper compiler options are known (currently Solaris
4440 and Linux), "threads" is the default.
4443 *) New script util/mklink.pl as a faster substitute for util/mklink.sh.
4446 *) Install various scripts to $(OPENSSLDIR)/misc, not to
4447 $(INSTALLTOP)/bin -- they shouldn't clutter directories
4448 such as /usr/local/bin.
4451 *) "make linux-shared" to build shared libraries.
4452 [Niels Poppe <niels@netbox.org>]
4454 *) New Configure option no-<cipher> (rsa, idea, rc5, ...).
4457 *) Add the PKCS#12 API documentation to openssl.txt. Preliminary support for
4458 extension adding in x509 utility.
4461 *) Remove NOPROTO sections and error code comments.
4464 *) Partial rewrite of the DEF file generator to now parse the ANSI
4468 *) New Configure options --prefix=DIR and --openssldir=DIR.
4471 *) Complete rewrite of the error code script(s). It is all now handled
4472 by one script at the top level which handles error code gathering,
4473 header rewriting and C source file generation. It should be much better
4474 than the old method: it now uses a modified version of Ulf's parser to
4475 read the ANSI prototypes in all header files (thus the old K&R definitions
4476 aren't needed for error creation any more) and do a better job of
4477 translating function codes into names. The old 'ASN1 error code imbedded
4478 in a comment' is no longer necessary and it doesn't use .err files which
4479 have now been deleted. Also the error code call doesn't have to appear all
4480 on one line (which resulted in some large lines...).
4483 *) Change #include filenames from <foo.h> to <openssl/foo.h>.
4486 *) Change behaviour of ssl2_read when facing length-0 packets: Don't return
4487 0 (which usually indicates a closed connection), but continue reading.
4490 *) Fix some race conditions.
4493 *) Add support for CRL distribution points extension. Add Certificate
4494 Policies and CRL distribution points documentation.
4497 *) Move the autogenerated header file parts to crypto/opensslconf.h.
4500 *) Fix new 56-bit DES export ciphersuites: they were using 7 bytes instead of
4501 8 of keying material. Merlin has also confirmed interop with this fix
4502 between OpenSSL and Baltimore C/SSL 2.0 and J/SSL 2.0.
4503 [Merlin Hughes <merlin@baltimore.ie>]
4505 *) Fix lots of warnings.
4506 [Richard Levitte <levitte@stacken.kth.se>]
4508 *) In add_cert_dir() in crypto/x509/by_dir.c, break out of the loop if
4509 the directory spec didn't end with a LIST_SEPARATOR_CHAR.
4510 [Richard Levitte <levitte@stacken.kth.se>]
4512 *) Fix problems with sizeof(long) == 8.
4513 [Andy Polyakov <appro@fy.chalmers.se>]
4515 *) Change functions to ANSI C.
4518 *) Fix typos in error codes.
4519 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>, Ulf Möller]
4521 *) Remove defunct assembler files from Configure.
4524 *) SPARC v8 assembler BIGNUM implementation.
4525 [Andy Polyakov <appro@fy.chalmers.se>]
4527 *) Support for Certificate Policies extension: both print and set.
4528 Various additions to support the r2i method this uses.
4531 *) A lot of constification, and fix a bug in X509_NAME_oneline() that could
4532 return a const string when you are expecting an allocated buffer.
4535 *) Add support for ASN1 types UTF8String and VISIBLESTRING, also the CHOICE
4536 types DirectoryString and DisplayText.
4539 *) Add code to allow r2i extensions to access the configuration database,
4540 add an LHASH database driver and add several ctx helper functions.
4543 *) Fix an evil bug in bn_expand2() which caused various BN functions to
4544 fail when they extended the size of a BIGNUM.
4547 *) Various utility functions to handle SXNet extension. Modify mkdef.pl to
4548 support typesafe stack.
4551 *) Fix typo in SSL_[gs]et_options().
4552 [Nils Frostberg <nils@medcom.se>]
4554 *) Delete various functions and files that belonged to the (now obsolete)
4555 old X509V3 handling code.
4558 *) New Configure option "rsaref".
4561 *) Don't auto-generate pem.h.
4564 *) Introduce type-safe ASN.1 SETs.
4567 *) Convert various additional casted stacks to type-safe STACK_OF() variants.
4568 [Ben Laurie, Ralf S. Engelschall, Steve Henson]
4570 *) Introduce type-safe STACKs. This will almost certainly break lots of code
4571 that links with OpenSSL (well at least cause lots of warnings), but fear
4572 not: the conversion is trivial, and it eliminates loads of evil casts. A
4573 few STACKed things have been converted already. Feel free to convert more.
4574 In the fullness of time, I'll do away with the STACK type altogether.
4577 *) Add `openssl ca -revoke <certfile>' facility which revokes a certificate
4578 specified in <certfile> by updating the entry in the index.txt file.
4579 This way one no longer has to edit the index.txt file manually for
4580 revoking a certificate. The -revoke option does the gory details now.
4581 [Massimiliano Pala <madwolf@openca.org>, Ralf S. Engelschall]
4583 *) Fix `openssl crl -noout -text' combination where `-noout' killed the
4584 `-text' option at all and this way the `-noout -text' combination was
4585 inconsistent in `openssl crl' with the friends in `openssl x509|rsa|dsa'.
4586 [Ralf S. Engelschall]
4588 *) Make sure a corresponding plain text error message exists for the
4589 X509_V_ERR_CERT_REVOKED/23 error number which can occur when a
4590 verify callback function determined that a certificate was revoked.
4591 [Ralf S. Engelschall]
4593 *) Bugfix: In test/testenc, don't test "openssl <cipher>" for
4594 ciphers that were excluded, e.g. by -DNO_IDEA. Also, test
4595 all available cipers including rc5, which was forgotten until now.
4596 In order to let the testing shell script know which algorithms
4597 are available, a new (up to now undocumented) command
4598 "openssl list-cipher-commands" is used.
4601 *) Bugfix: s_client occasionally would sleep in select() when
4602 it should have checked SSL_pending() first.
4605 *) New functions DSA_do_sign and DSA_do_verify to provide access to
4606 the raw DSA values prior to ASN.1 encoding.
4609 *) Tweaks to Configure
4610 [Niels Poppe <niels@netbox.org>]
4612 *) Add support for PKCS#5 v2.0 ASN1 PBES2 structures. No other support,
4616 *) New variables $(RANLIB) and $(PERL) in the Makefiles.
4619 *) New config option to avoid instructions that are illegal on the 80386.
4620 The default code is faster, but requires at least a 486.
4623 *) Got rid of old SSL2_CLIENT_VERSION (inconsistently used) and
4624 SSL2_SERVER_VERSION (not used at all) macros, which are now the
4625 same as SSL2_VERSION anyway.
4628 *) New "-showcerts" option for s_client.
4631 *) Still more PKCS#12 integration. Add pkcs12 application to openssl
4632 application. Various cleanups and fixes.
4635 *) More PKCS#12 integration. Add new pkcs12 directory with Makefile.ssl and
4636 modify error routines to work internally. Add error codes and PBE init
4637 to library startup routines.
4640 *) Further PKCS#12 integration. Added password based encryption, PKCS#8 and
4641 packing functions to asn1 and evp. Changed function names and error
4642 codes along the way.
4645 *) PKCS12 integration: and so it begins... First of several patches to
4646 slowly integrate PKCS#12 functionality into OpenSSL. Add PKCS#12
4647 objects to objects.h
4650 *) Add a new 'indent' option to some X509V3 extension code. Initial ASN1
4651 and display support for Thawte strong extranet extension.
4654 *) Add LinuxPPC support.
4655 [Jeff Dubrule <igor@pobox.org>]
4657 *) Get rid of redundant BN file bn_mulw.c, and rename bn_div64 to
4658 bn_div_words in alpha.s.
4659 [Hannes Reinecke <H.Reinecke@hw.ac.uk> and Ben Laurie]
4661 *) Make sure the RSA OAEP test is skipped under -DRSAref because
4662 OAEP isn't supported when OpenSSL is built with RSAref.
4663 [Ulf Moeller <ulf@fitug.de>]
4665 *) Move definitions of IS_SET/IS_SEQUENCE inside crypto/asn1/asn1.h
4666 so they no longer are missing under -DNOPROTO.
4667 [Soren S. Jorvang <soren@t.dk>]
4670 Changes between 0.9.1c and 0.9.2b [22 Mar 1999]
4672 *) Make SSL_get_peer_cert_chain() work in servers. Unfortunately, it still
4673 doesn't work when the session is reused. Coming soon!
4676 *) Fix a security hole, that allows sessions to be reused in the wrong
4677 context thus bypassing client cert protection! All software that uses
4678 client certs and session caches in multiple contexts NEEDS PATCHING to
4679 allow session reuse! A fuller solution is in the works.
4680 [Ben Laurie, problem pointed out by Holger Reif, Bodo Moeller (and ???)]
4682 *) Some more source tree cleanups (removed obsolete files
4683 crypto/bf/asm/bf586.pl, test/test.txt and crypto/sha/asm/f.s; changed
4684 permission on "config" script to be executable) and a fix for the INSTALL
4686 [Ulf Moeller <ulf@fitug.de>]
4688 *) Remove some legacy and erroneous uses of malloc, free instead of
4690 [Lennart Bang <lob@netstream.se>, with minor changes by Steve]
4692 *) Make rsa_oaep_test return non-zero on error.
4693 [Ulf Moeller <ulf@fitug.de>]
4695 *) Add support for native Solaris shared libraries. Configure
4696 solaris-sparc-sc4-pic, make, then run shlib/solaris-sc4.sh. It'd be nice
4697 if someone would make that last step automatic.
4698 [Matthias Loepfe <Matthias.Loepfe@AdNovum.CH>]
4700 *) ctx_size was not built with the right compiler during "make links". Fixed.
4703 *) Change the meaning of 'ALL' in the cipher list. It now means "everything
4704 except NULL ciphers". This means the default cipher list will no longer
4705 enable NULL ciphers. They need to be specifically enabled e.g. with
4706 the string "DEFAULT:eNULL".
4709 *) Fix to RSA private encryption routines: if p < q then it would
4710 occasionally produce an invalid result. This will only happen with
4711 externally generated keys because OpenSSL (and SSLeay) ensure p > q.
4714 *) Be less restrictive and allow also `perl util/perlpath.pl
4715 /path/to/bin/perl' in addition to `perl util/perlpath.pl /path/to/bin',
4716 because this way one can also use an interpreter named `perl5' (which is
4717 usually the name of Perl 5.xxx on platforms where an Perl 4.x is still
4718 installed as `perl').
4719 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
4721 *) Let util/clean-depend.pl work also with older Perl 5.00x versions.
4722 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
4724 *) Fix Makefile.org so CC,CFLAG etc are passed to 'make links' add
4725 advapi32.lib to Win32 build and change the pem test comparision
4726 to fc.exe (thanks to Ulrich Kroener <kroneru@yahoo.com> for the
4727 suggestion). Fix misplaced ASNI prototypes and declarations in evp.h
4728 and crypto/des/ede_cbcm_enc.c.
4731 *) DES quad checksum was broken on big-endian architectures. Fixed.
4734 *) Comment out two functions in bio.h that aren't implemented. Fix up the
4735 Win32 test batch file so it (might) work again. The Win32 test batch file
4736 is horrible: I feel ill....
4739 *) Move various #ifdefs around so NO_SYSLOG, NO_DIRENT etc are now selected
4740 in e_os.h. Audit of header files to check ANSI and non ANSI
4741 sections: 10 functions were absent from non ANSI section and not exported
4742 from Windows DLLs. Fixed up libeay.num for new functions.
4745 *) Make `openssl version' output lines consistent.
4746 [Ralf S. Engelschall]
4748 *) Fix Win32 symbol export lists for BIO functions: Added
4749 BIO_get_ex_new_index, BIO_get_ex_num, BIO_get_ex_data and BIO_set_ex_data
4750 to ms/libeay{16,32}.def.
4751 [Ralf S. Engelschall]
4753 *) Second round of fixing the OpenSSL perl/ stuff. It now at least compiled
4754 fine under Unix and passes some trivial tests I've now added. But the
4755 whole stuff is horribly incomplete, so a README.1ST with a disclaimer was
4756 added to make sure no one expects that this stuff really works in the
4757 OpenSSL 0.9.2 release. Additionally I've started to clean the XS sources
4758 up and fixed a few little bugs and inconsistencies in OpenSSL.{pm,xs} and
4760 [Ralf S. Engelschall]
4762 *) Fix the generation of two part addresses in perl.
4763 [Kenji Miyake <kenji@miyake.org>, integrated by Ben Laurie]
4765 *) Add config entry for Linux on MIPS.
4766 [John Tobey <jtobey@channel1.com>]
4768 *) Make links whenever Configure is run, unless we are on Windoze.
4771 *) Permit extensions to be added to CRLs using crl_section in openssl.cnf.
4772 Currently only issuerAltName and AuthorityKeyIdentifier make any sense
4776 *) Add a useful kludge to allow package maintainers to specify compiler and
4777 other platforms details on the command line without having to patch the
4778 Configure script everytime: One now can use ``perl Configure
4779 <id>:<details>'', i.e. platform ids are allowed to have details appended
4780 to them (seperated by colons). This is treated as there would be a static
4781 pre-configured entry in Configure's %table under key <id> with value
4782 <details> and ``perl Configure <id>'' is called. So, when you want to
4783 perform a quick test-compile under FreeBSD 3.1 with pgcc and without
4784 assembler stuff you can use ``perl Configure "FreeBSD-elf:pgcc:-O6:::"''
4785 now, which overrides the FreeBSD-elf entry on-the-fly.
4786 [Ralf S. Engelschall]
4788 *) Disable new TLS1 ciphersuites by default: they aren't official yet.
4791 *) Allow DSO flags like -fpic, -fPIC, -KPIC etc. to be specified
4792 on the `perl Configure ...' command line. This way one can compile
4793 OpenSSL libraries with Position Independent Code (PIC) which is needed
4794 for linking it into DSOs.
4795 [Ralf S. Engelschall]
4797 *) Remarkably, export ciphers were totally broken and no-one had noticed!
4801 *) Cleaned up the LICENSE document: The official contact for any license
4802 questions now is the OpenSSL core team under openssl-core@openssl.org.
4803 And add a paragraph about the dual-license situation to make sure people
4804 recognize that _BOTH_ the OpenSSL license _AND_ the SSLeay license apply
4805 to the OpenSSL toolkit.
4806 [Ralf S. Engelschall]
4808 *) General source tree makefile cleanups: Made `making xxx in yyy...'
4809 display consistent in the source tree and replaced `/bin/rm' by `rm'.
4810 Additonally cleaned up the `make links' target: Remove unnecessary
4811 semicolons, subsequent redundant removes, inline point.sh into mklink.sh
4812 to speed processing and no longer clutter the display with confusing
4813 stuff. Instead only the actually done links are displayed.
4814 [Ralf S. Engelschall]
4816 *) Permit null encryption ciphersuites, used for authentication only. It used
4817 to be necessary to set the preprocessor define SSL_ALLOW_ENULL to do this.
4818 It is now necessary to set SSL_FORBID_ENULL to prevent the use of null
4822 *) Add a bunch of fixes to the PKCS#7 stuff. It used to sometimes reorder
4823 signed attributes when verifying signatures (this would break them),
4824 the detached data encoding was wrong and public keys obtained using
4825 X509_get_pubkey() weren't freed.
4828 *) Add text documentation for the BUFFER functions. Also added a work around
4829 to a Win95 console bug. This was triggered by the password read stuff: the
4830 last character typed gets carried over to the next fread(). If you were
4831 generating a new cert request using 'req' for example then the last
4832 character of the passphrase would be CR which would then enter the first
4836 *) Added the new `Includes OpenSSL Cryptography Software' button as
4837 doc/openssl_button.{gif,html} which is similar in style to the old SSLeay
4838 button and can be used by applications based on OpenSSL to show the
4839 relationship to the OpenSSL project.
4840 [Ralf S. Engelschall]
4842 *) Remove confusing variables in function signatures in files
4843 ssl/ssl_lib.c and ssl/ssl.h.
4844 [Lennart Bong <lob@kulthea.stacken.kth.se>]
4846 *) Don't install bss_file.c under PREFIX/include/
4847 [Lennart Bong <lob@kulthea.stacken.kth.se>]
4849 *) Get the Win32 compile working again. Modify mkdef.pl so it can handle
4850 functions that return function pointers and has support for NT specific
4851 stuff. Fix mk1mf.pl and VC-32.pl to support NT differences also. Various
4852 #ifdef WIN32 and WINNTs sprinkled about the place and some changes from
4853 unsigned to signed types: this was killing the Win32 compile.
4856 *) Add new certificate file to stack functions,
4857 SSL_add_dir_cert_subjects_to_stack() and
4858 SSL_add_file_cert_subjects_to_stack(). These largely supplant
4859 SSL_load_client_CA_file(), and can be used to add multiple certs easily
4860 to a stack (usually this is then handed to SSL_CTX_set_client_CA_list()).
4861 This means that Apache-SSL and similar packages don't have to mess around
4862 to add as many CAs as they want to the preferred list.
4865 *) Experiment with doxygen documentation. Currently only partially applied to
4867 See http://www.stack.nl/~dimitri/doxygen/index.html, and run doxygen with
4868 openssl.doxy as the configuration file.
4871 *) Get rid of remaining C++-style comments which strict C compilers hate.
4872 [Ralf S. Engelschall, pointed out by Carlos Amengual]
4874 *) Changed BN_RECURSION in bn_mont.c to BN_RECURSION_MONT so it is not
4875 compiled in by default: it has problems with large keys.
4878 *) Add a bunch of SSL_xxx() functions for configuring the temporary RSA and
4879 DH private keys and/or callback functions which directly correspond to
4880 their SSL_CTX_xxx() counterparts but work on a per-connection basis. This
4881 is needed for applications which have to configure certificates on a
4882 per-connection basis (e.g. Apache+mod_ssl) instead of a per-context basis
4884 For the RSA certificate situation is makes no difference, but
4885 for the DSA certificate situation this fixes the "no shared cipher"
4886 problem where the OpenSSL cipher selection procedure failed because the
4887 temporary keys were not overtaken from the context and the API provided
4888 no way to reconfigure them.
4889 The new functions now let applications reconfigure the stuff and they
4890 are in detail: SSL_need_tmp_RSA, SSL_set_tmp_rsa, SSL_set_tmp_dh,
4891 SSL_set_tmp_rsa_callback and SSL_set_tmp_dh_callback. Additionally a new
4892 non-public-API function ssl_cert_instantiate() is used as a helper
4893 function and also to reduce code redundancy inside ssl_rsa.c.
4894 [Ralf S. Engelschall]
4896 *) Move s_server -dcert and -dkey options out of the undocumented feature
4897 area because they are useful for the DSA situation and should be
4898 recognized by the users.
4899 [Ralf S. Engelschall]
4901 *) Fix the cipher decision scheme for export ciphers: the export bits are
4902 *not* within SSL_MKEY_MASK or SSL_AUTH_MASK, they are within
4903 SSL_EXP_MASK. So, the original variable has to be used instead of the
4904 already masked variable.
4905 [Richard Levitte <levitte@stacken.kth.se>]
4907 *) Fix 'port' variable from `int' to `unsigned int' in crypto/bio/b_sock.c
4908 [Richard Levitte <levitte@stacken.kth.se>]
4910 *) Change type of another md_len variable in pk7_doit.c:PKCS7_dataFinal()
4911 from `int' to `unsigned int' because it's a length and initialized by
4912 EVP_DigestFinal() which expects an `unsigned int *'.
4913 [Richard Levitte <levitte@stacken.kth.se>]
4915 *) Don't hard-code path to Perl interpreter on shebang line of Configure
4916 script. Instead use the usual Shell->Perl transition trick.
4917 [Ralf S. Engelschall]
4919 *) Make `openssl x509 -noout -modulus' functional also for DSA certificates
4920 (in addition to RSA certificates) to match the behaviour of `openssl dsa
4921 -noout -modulus' as it's already the case for `openssl rsa -noout
4922 -modulus'. For RSA the -modulus is the real "modulus" while for DSA
4923 currently the public key is printed (a decision which was already done by
4924 `openssl dsa -modulus' in the past) which serves a similar purpose.
4925 Additionally the NO_RSA no longer completely removes the whole -modulus
4926 option; it now only avoids using the RSA stuff. Same applies to NO_DSA
4928 [Ralf S. Engelschall]
4930 *) Add Arne Ansper's reliable BIO - this is an encrypted, block-digested
4931 BIO. See the source (crypto/evp/bio_ok.c) for more info.
4932 [Arne Ansper <arne@ats.cyber.ee>]
4934 *) Dump the old yucky req code that tried (and failed) to allow raw OIDs
4935 to be added. Now both 'req' and 'ca' can use new objects defined in the
4939 *) Add cool BIO that does syslog (or event log on NT).
4940 [Arne Ansper <arne@ats.cyber.ee>, integrated by Ben Laurie]
4942 *) Add support for new TLS ciphersuites, TLS_RSA_EXPORT56_WITH_RC4_56_MD5,
4943 TLS_RSA_EXPORT56_WITH_RC2_CBC_56_MD5 and
4944 TLS_RSA_EXPORT56_WITH_DES_CBC_SHA, as specified in "56-bit Export Cipher
4945 Suites For TLS", draft-ietf-tls-56-bit-ciphersuites-00.txt.
4948 *) Add preliminary config info for new extension code.
4951 *) Make RSA_NO_PADDING really use no padding.
4952 [Ulf Moeller <ulf@fitug.de>]
4954 *) Generate errors when private/public key check is done.
4957 *) Overhaul for 'crl' utility. New function X509_CRL_print. Partial support
4958 for some CRL extensions and new objects added.
4961 *) Really fix the ASN1 IMPLICIT bug this time... Partial support for private
4962 key usage extension and fuller support for authority key id.
4965 *) Add OAEP encryption for the OpenSSL crypto library. OAEP is the improved
4966 padding method for RSA, which is recommended for new applications in PKCS
4967 #1 v2.0 (RFC 2437, October 1998).
4968 OAEP (Optimal Asymmetric Encryption Padding) has better theoretical
4969 foundations than the ad-hoc padding used in PKCS #1 v1.5. It is secure
4970 against Bleichbacher's attack on RSA.
4971 [Ulf Moeller <ulf@fitug.de>, reformatted, corrected and integrated by
4974 *) Updates to the new SSL compression code
4975 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
4977 *) Fix so that the version number in the master secret, when passed
4978 via RSA, checks that if TLS was proposed, but we roll back to SSLv3
4979 (because the server will not accept higher), that the version number
4980 is 0x03,0x01, not 0x03,0x00
4981 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
4983 *) Run extensive memory leak checks on SSL apps. Fixed *lots* of memory
4984 leaks in ssl/ relating to new X509_get_pubkey() behaviour. Also fixes
4985 in apps/ and an unrelated leak in crypto/dsa/dsa_vrf.c
4988 *) Support for RAW extensions where an arbitrary extension can be
4989 created by including its DER encoding. See apps/openssl.cnf for
4993 *) Make sure latest Perl versions don't interpret some generated C array
4994 code as Perl array code in the crypto/err/err_genc.pl script.
4995 [Lars Weber <3weber@informatik.uni-hamburg.de>]
4997 *) Modify ms/do_ms.bat to not generate assembly language makefiles since
4998 not many people have the assembler. Various Win32 compilation fixes and
4999 update to the INSTALL.W32 file with (hopefully) more accurate Win32
5003 *) Modify configure script 'Configure' to automatically create crypto/date.h
5004 file under Win32 and also build pem.h from pem.org. New script
5005 util/mkfiles.pl to create the MINFO file on environments that can't do a
5006 'make files': perl util/mkfiles.pl >MINFO should work.
5009 *) Major rework of DES function declarations, in the pursuit of correctness
5010 and purity. As a result, many evil casts evaporated, and some weirdness,
5011 too. You may find this causes warnings in your code. Zapping your evil
5012 casts will probably fix them. Mostly.
5015 *) Fix for a typo in asn1.h. Bug fix to object creation script
5016 obj_dat.pl. It considered a zero in an object definition to mean
5017 "end of object": none of the objects in objects.h have any zeros
5018 so it wasn't spotted.
5019 [Steve Henson, reported by Erwann ABALEA <eabalea@certplus.com>]
5021 *) Add support for Triple DES Cipher Block Chaining with Output Feedback
5022 Masking (CBCM). In the absence of test vectors, the best I have been able
5023 to do is check that the decrypt undoes the encrypt, so far. Send me test
5024 vectors if you have them.
5027 *) Correct calculation of key length for export ciphers (too much space was
5028 allocated for null ciphers). This has not been tested!
5031 *) Modifications to the mkdef.pl for Win32 DEF file creation. The usage
5032 message is now correct (it understands "crypto" and "ssl" on its
5033 command line). There is also now an "update" option. This will update
5034 the util/ssleay.num and util/libeay.num files with any new functions.
5036 perl util/mkdef.pl crypto ssl update
5037 it will update them.
5040 *) Overhauled the Perl interface (perl/*):
5041 - ported BN stuff to OpenSSL's different BN library
5042 - made the perl/ source tree CVS-aware
5043 - renamed the package from SSLeay to OpenSSL (the files still contain
5044 their history because I've copied them in the repository)
5045 - removed obsolete files (the test scripts will be replaced
5046 by better Test::Harness variants in the future)
5047 [Ralf S. Engelschall]
5049 *) First cut for a very conservative source tree cleanup:
5050 1. merge various obsolete readme texts into doc/ssleay.txt
5051 where we collect the old documents and readme texts.
5052 2. remove the first part of files where I'm already sure that we no
5053 longer need them because of three reasons: either they are just temporary
5054 files which were left by Eric or they are preserved original files where
5055 I've verified that the diff is also available in the CVS via "cvs diff
5056 -rSSLeay_0_8_1b" or they were renamed (as it was definitely the case for
5057 the crypto/md/ stuff).
5058 [Ralf S. Engelschall]
5060 *) More extension code. Incomplete support for subject and issuer alt
5061 name, issuer and authority key id. Change the i2v function parameters
5062 and add an extra 'crl' parameter in the X509V3_CTX structure: guess
5063 what that's for :-) Fix to ASN1 macro which messed up
5064 IMPLICIT tag and add f_enum.c which adds a2i, i2a for ENUMERATED.
5067 *) Preliminary support for ENUMERATED type. This is largely copied from the
5071 *) Add new function, EVP_MD_CTX_copy() to replace frequent use of memcpy.
5072 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
5074 *) Make sure `make rehash' target really finds the `openssl' program.
5075 [Ralf S. Engelschall, Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
5077 *) Squeeze another 7% of speed out of MD5 assembler, at least on a P2. I'd
5078 like to hear about it if this slows down other processors.
5081 *) Add CygWin32 platform information to Configure script.
5082 [Alan Batie <batie@aahz.jf.intel.com>]
5084 *) Fixed ms/32all.bat script: `no_asm' -> `no-asm'
5085 [Rainer W. Gerling <gerling@mpg-gv.mpg.de>]
5087 *) New program nseq to manipulate netscape certificate sequences
5090 *) Modify crl2pkcs7 so it supports multiple -certfile arguments. Fix a
5094 *) Fixes to BN code. Previously the default was to define BN_RECURSION
5095 but the BN code had some problems that would cause failures when
5096 doing certificate verification and some other functions.
5097 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
5099 *) Add ASN1 and PEM code to support netscape certificate sequences.
5102 *) Add ASN1 and PEM code to support netscape certificate sequences.
5105 *) Add several PKIX and private extended key usage OIDs.
5108 *) Modify the 'ca' program to handle the new extension code. Modify
5109 openssl.cnf for new extension format, add comments.
5112 *) More X509 V3 changes. Fix typo in v3_bitstr.c. Add support to 'req'
5113 and add a sample to openssl.cnf so req -x509 now adds appropriate
5117 *) Continued X509 V3 changes. Add to other makefiles, integrate with the
5118 error code, add initial support to X509_print() and x509 application.
5121 *) Takes a deep breath and start addding X509 V3 extension support code. Add
5122 files in crypto/x509v3. Move original stuff to crypto/x509v3/old. All this
5123 stuff is currently isolated and isn't even compiled yet.
5126 *) Continuing patches for GeneralizedTime. Fix up certificate and CRL
5127 ASN1 to use ASN1_TIME and modify print routines to use ASN1_TIME_print.
5128 Removed the versions check from X509 routines when loading extensions:
5129 this allows certain broken certificates that don't set the version
5130 properly to be processed.
5133 *) Deal with irritating shit to do with dependencies, in YAAHW (Yet Another
5134 Ad Hoc Way) - Makefile.ssls now all contain local dependencies, which
5135 can still be regenerated with "make depend".
5138 *) Spelling mistake in C version of CAST-128.
5139 [Ben Laurie, reported by Jeremy Hylton <jeremy@cnri.reston.va.us>]
5141 *) Changes to the error generation code. The perl script err-code.pl
5142 now reads in the old error codes and retains the old numbers, only
5143 adding new ones if necessary. It also only changes the .err files if new
5144 codes are added. The makefiles have been modified to only insert errors
5145 when needed (to avoid needlessly modifying header files). This is done
5146 by only inserting errors if the .err file is newer than the auto generated
5147 C file. To rebuild all the error codes from scratch (the old behaviour)
5148 either modify crypto/Makefile.ssl to pass the -regen flag to err_code.pl
5149 or delete all the .err files.
5152 *) CAST-128 was incorrectly implemented for short keys. The C version has
5153 been fixed, but is untested. The assembler versions are also fixed, but
5154 new assembler HAS NOT BEEN GENERATED FOR WIN32 - the Makefile needs fixing
5155 to regenerate it if needed.
5156 [Ben Laurie, reported (with fix for C version) by Jun-ichiro itojun
5157 Hagino <itojun@kame.net>]
5159 *) File was opened incorrectly in randfile.c.
5160 [Ulf Möller <ulf@fitug.de>]
5162 *) Beginning of support for GeneralizedTime. d2i, i2d, check and print
5163 functions. Also ASN1_TIME suite which is a CHOICE of UTCTime or
5164 GeneralizedTime. ASN1_TIME is the proper type used in certificates et
5165 al: it's just almost always a UTCTime. Note this patch adds new error
5166 codes so do a "make errors" if there are problems.
5169 *) Correct Linux 1 recognition in config.
5170 [Ulf Möller <ulf@fitug.de>]
5172 *) Remove pointless MD5 hash when using DSA keys in ca.
5173 [Anonymous <nobody@replay.com>]
5175 *) Generate an error if given an empty string as a cert directory. Also
5176 generate an error if handed NULL (previously returned 0 to indicate an
5177 error, but didn't set one).
5178 [Ben Laurie, reported by Anonymous <nobody@replay.com>]
5180 *) Add prototypes to SSL methods. Make SSL_write's buffer const, at last.
5183 *) Fix the dummy function BN_ref_mod_exp() in rsaref.c to have the correct
5184 parameters. This was causing a warning which killed off the Win32 compile.
5187 *) Remove C++ style comments from crypto/bn/bn_local.h.
5188 [Neil Costigan <neil.costigan@celocom.com>]
5190 *) The function OBJ_txt2nid was broken. It was supposed to return a nid
5191 based on a text string, looking up short and long names and finally
5192 "dot" format. The "dot" format stuff didn't work. Added new function
5193 OBJ_txt2obj to do the same but return an ASN1_OBJECT and rewrote
5194 OBJ_txt2nid to use it. OBJ_txt2obj can also return objects even if the
5195 OID is not part of the table.
5198 *) Add prototypes to X509 lookup/verify methods, fixing a bug in
5199 X509_LOOKUP_by_alias().
5202 *) Sort openssl functions by name.
5205 *) Get the gendsa program working (hopefully) and add it to app list. Remove
5206 encryption from sample DSA keys (in case anyone is interested the password
5210 *) Make _all_ *_free functions accept a NULL pointer.
5211 [Frans Heymans <fheymans@isaserver.be>]
5213 *) If a DH key is generated in s3_srvr.c, don't blow it by trying to use
5215 [Anonymous <nobody@replay.com>]
5217 *) s_server should send the CAfile as acceptable CAs, not its own cert.
5218 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
5220 *) Don't blow it for numeric -newkey arguments to apps/req.
5221 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
5223 *) Temp key "for export" tests were wrong in s3_srvr.c.
5224 [Anonymous <nobody@replay.com>]
5226 *) Add prototype for temp key callback functions
5227 SSL_CTX_set_tmp_{rsa,dh}_callback().
5230 *) Make DH_free() tolerate being passed a NULL pointer (like RSA_free() and
5231 DSA_free()). Make X509_PUBKEY_set() check for errors in d2i_PublicKey().
5234 *) X509_name_add_entry() freed the wrong thing after an error.
5235 [Arne Ansper <arne@ats.cyber.ee>]
5237 *) rsa_eay.c would attempt to free a NULL context.
5238 [Arne Ansper <arne@ats.cyber.ee>]
5240 *) BIO_s_socket() had a broken should_retry() on Windoze.
5241 [Arne Ansper <arne@ats.cyber.ee>]
5243 *) BIO_f_buffer() didn't pass on BIO_CTRL_FLUSH.
5244 [Arne Ansper <arne@ats.cyber.ee>]
5246 *) Make sure the already existing X509_STORE->depth variable is initialized
5247 in X509_STORE_new(), but document the fact that this variable is still
5248 unused in the certificate verification process.
5249 [Ralf S. Engelschall]
5251 *) Fix the various library and apps files to free up pkeys obtained from
5252 X509_PUBKEY_get() et al. Also allow x509.c to handle netscape extensions.
5255 *) Fix reference counting in X509_PUBKEY_get(). This makes
5256 demos/maurice/example2.c work, amongst others, probably.
5257 [Steve Henson and Ben Laurie]
5259 *) First cut of a cleanup for apps/. First the `ssleay' program is now named
5260 `openssl' and second, the shortcut symlinks for the `openssl <command>'
5261 are no longer created. This way we have a single and consistent command
5262 line interface `openssl <command>', similar to `cvs <command>'.
5263 [Ralf S. Engelschall, Paul Sutton and Ben Laurie]
5265 *) ca.c: move test for DSA keys inside #ifndef NO_DSA. Make pubkey
5266 BIT STRING wrapper always have zero unused bits.
5269 *) Add CA.pl, perl version of CA.sh, add extended key usage OID.
5272 *) Make the top-level INSTALL documentation easier to understand.
5275 *) Makefiles updated to exit if an error occurs in a sub-directory
5276 make (including if user presses ^C) [Paul Sutton]
5278 *) Make Montgomery context stuff explicit in RSA data structure.
5281 *) Fix build order of pem and err to allow for generated pem.h.
5284 *) Fix renumbering bug in X509_NAME_delete_entry().
5287 *) Enhanced the err-ins.pl script so it makes the error library number
5288 global and can add a library name. This is needed for external ASN1 and
5289 other error libraries.
5292 *) Fixed sk_insert which never worked properly.
5295 *) Fix ASN1 macros so they can handle indefinite length construted
5296 EXPLICIT tags. Some non standard certificates use these: they can now
5300 *) Merged the various old/obsolete SSLeay documentation files (doc/xxx.doc)
5301 into a single doc/ssleay.txt bundle. This way the information is still
5302 preserved but no longer messes up this directory. Now it's new room for
5303 the new set of documenation files.
5304 [Ralf S. Engelschall]
5306 *) SETs were incorrectly DER encoded. This was a major pain, because they
5307 shared code with SEQUENCEs, which aren't coded the same. This means that
5308 almost everything to do with SETs or SEQUENCEs has either changed name or
5309 number of arguments.
5310 [Ben Laurie, based on a partial fix by GP Jayan <gp@nsj.co.jp>]
5312 *) Fix test data to work with the above.
5315 *) Fix the RSA header declarations that hid a bug I fixed in 0.9.0b but
5316 was already fixed by Eric for 0.9.1 it seems.
5317 [Ben Laurie - pointed out by Ulf Möller <ulf@fitug.de>]
5319 *) Autodetect FreeBSD3.
5322 *) Fix various bugs in Configure. This affects the following platforms:
5326 unixware-2.0-pentium
5330 *) Eliminate generated files from CVS. Reorder tests to regenerate files
5331 before they are needed.
5334 *) Generate Makefile.ssl from Makefile.org (to keep CVS happy).
5338 Changes between 0.9.1b and 0.9.1c [23-Dec-1998]
5340 *) Added OPENSSL_VERSION_NUMBER to crypto/crypto.h and
5341 changed SSLeay to OpenSSL in version strings.
5342 [Ralf S. Engelschall]
5344 *) Some fixups to the top-level documents.
5347 *) Fixed the nasty bug where rsaref.h was not found under compile-time
5348 because the symlink to include/ was missing.
5349 [Ralf S. Engelschall]
5351 *) Incorporated the popular no-RSA/DSA-only patches
5352 which allow to compile a RSA-free SSLeay.
5353 [Andrew Cooke / Interrader Ldt., Ralf S. Engelschall]
5355 *) Fixed nasty rehash problem under `make -f Makefile.ssl links'
5356 when "ssleay" is still not found.
5357 [Ralf S. Engelschall]
5359 *) Added more platforms to Configure: Cray T3E, HPUX 11,
5360 [Ralf S. Engelschall, Beckmann <beckman@acl.lanl.gov>]
5362 *) Updated the README file.
5363 [Ralf S. Engelschall]
5365 *) Added various .cvsignore files in the CVS repository subdirs
5366 to make a "cvs update" really silent.
5367 [Ralf S. Engelschall]
5369 *) Recompiled the error-definition header files and added
5370 missing symbols to the Win32 linker tables.
5371 [Ralf S. Engelschall]
5373 *) Cleaned up the top-level documents;
5374 o new files: CHANGES and LICENSE
5375 o merged VERSION, HISTORY* and README* files a CHANGES.SSLeay
5376 o merged COPYRIGHT into LICENSE
5377 o removed obsolete TODO file
5378 o renamed MICROSOFT to INSTALL.W32
5379 [Ralf S. Engelschall]
5381 *) Removed dummy files from the 0.9.1b source tree:
5382 crypto/asn1/x crypto/bio/cd crypto/bio/fg crypto/bio/grep crypto/bio/vi
5383 crypto/bn/asm/......add.c crypto/bn/asm/a.out crypto/dsa/f crypto/md5/f
5384 crypto/pem/gmon.out crypto/perlasm/f crypto/pkcs7/build crypto/rsa/f
5385 crypto/sha/asm/f crypto/threads/f ms/zzz ssl/f ssl/f.mak test/f
5386 util/f.mak util/pl/f util/pl/f.mak crypto/bf/bf_locl.old apps/f
5387 [Ralf S. Engelschall]
5389 *) Added various platform portability fixes.
5392 *) The Genesis of the OpenSSL rpject:
5393 We start with the latest (unreleased) SSLeay version 0.9.1b which Eric A.
5394 Young and Tim J. Hudson created while they were working for C2Net until
5396 [The OpenSSL Project]
5399 Changes between 0.9.0b and 0.9.1b [not released]
5401 *) Updated a few CA certificates under certs/
5404 *) Changed some BIGNUM api stuff.
5407 *) Various platform ports: OpenBSD, Ultrix, IRIX 64bit, NetBSD,
5408 DGUX x86, Linux Alpha, etc.
5411 *) New COMP library [crypto/comp/] for SSL Record Layer Compression:
5412 RLE (dummy implemented) and ZLIB (really implemented when ZLIB is
5416 *) Add -strparse option to asn1pars program which parses nested
5418 [Dr Stephen Henson <shenson@bigfoot.com>]
5420 *) Added "oid_file" to ssleay.cnf for "ca" and "req" programs.
5423 *) DSA fix for "ca" program.
5426 *) Added "-genkey" option to "dsaparam" program.
5429 *) Added RIPE MD160 (rmd160) message digest.
5432 *) Added -a (all) option to "ssleay version" command.
5435 *) Added PLATFORM define which is the id given to Configure.
5438 *) Added MemCheck_XXXX functions to crypto/mem.c for memory checking.
5441 *) Extended the ASN.1 parser routines.
5444 *) Extended BIO routines to support REUSEADDR, seek, tell, etc.
5447 *) Added a BN_CTX to the BN library.
5450 *) Fixed the weak key values in DES library
5453 *) Changed API in EVP library for cipher aliases.
5456 *) Added support for RC2/64bit cipher.
5459 *) Converted the lhash library to the crypto/mem.c functions.
5462 *) Added more recognized ASN.1 object ids.
5465 *) Added more RSA padding checks for SSL/TLS.
5468 *) Added BIO proxy/filter functionality.
5471 *) Added extra_certs to SSL_CTX which can be used
5472 send extra CA certificates to the client in the CA cert chain sending
5473 process. It can be configured with SSL_CTX_add_extra_chain_cert().
5476 *) Now Fortezza is denied in the authentication phase because
5477 this is key exchange mechanism is not supported by SSLeay at all.
5480 *) Additional PKCS1 checks.
5483 *) Support the string "TLSv1" for all TLS v1 ciphers.
5486 *) Added function SSL_get_ex_data_X509_STORE_CTX_idx() which gives the
5487 ex_data index of the SSL context in the X509_STORE_CTX ex_data.
5490 *) Fixed a few memory leaks.
5493 *) Fixed various code and comment typos.
5496 *) A minor bug in ssl/s3_clnt.c where there would always be 4 0
5497 bytes sent in the client random.
5498 [Edward Bishop <ebishop@spyglass.com>]
projects / openssl.git / blob