5 Changes between 0.9.7 and 0.9.8 [xx XXX 2002]
7 *) Add a function EC_GROUP_check_discriminant() (defined via
8 EC_METHOD) that verifies that the curve discriminant is non-zero.
10 Add a function EC_GROUP_check() that makes some sanity tests
11 on a EC_GROUP, its generator and order. This includes
12 EC_GROUP_check_discriminant().
13 [Nils Larsch <nla@trustcenter.de>]
15 *) Add ECDSA in new directory crypto/ecdsa/.
17 Add applications 'openssl ecdsaparam' and 'openssl ecdsa'
18 (these are variants of 'openssl dsaparam' and 'openssl dsa').
20 ECDSA support is also included in various other files across the
21 library. Most notably,
22 - 'openssl req' now has a '-newkey ecdsa:file' option;
23 - EVP_PKCS82PKEY (crypto/evp/evp_pkey.c) now can handle ECDSA;
24 - X509_PUBKEY_get (crypto/asn1/x_pubkey.c) and
25 d2i_PublicKey (crypto/asn1/d2i_pu.c) have been modified to make
26 them suitable for ECDSA where domain parameters must be
27 extracted before the specific public key.
28 [Nils Larsch <nla@trustcenter.de>]
30 *) Include some named elliptic curves, and add OIDs from X9.62,
31 SECG, and WAP/WTLS. The curves can be obtained from the new
34 EC_GROUP_new_by_name()
35 Also add a 'nid' field to EC_GROUP objects, which can be accessed
39 [Nils Larsch <nla@trustcenter.de, Bodo Moeller]
41 Changes between 0.9.6d and 0.9.7 [XX xxx 2002]
43 *) Make object definitions compliant to LDAP (RFC2256): SN is the short
44 form for "surname", serialNumber has no short form (Michael Bell
45 <michael.bell@rz.hu-berlin.de>).
48 *) Add an "init" command to the ENGINE config module and auto initialize
49 ENGINEs. Without any "init" command the ENGINE will be initialized
50 after all ctrl commands have been executed on it. If init=1 the
51 ENGINE is initailized at that point (ctrls before that point are run
52 on the uninitialized ENGINE and after on the initialized one). If
53 init=0 then the ENGINE will not be iniatialized at all.
56 *) Fix the 'app_verify_callback' interface so that the user-defined
57 argument is actually passed to the callback: In the
58 SSL_CTX_set_cert_verify_callback() prototype, the callback
59 declaration has been changed from
62 int (*cb)(X509_STORE_CTX *,void *);
63 in ssl_verify_cert_chain (ssl/ssl_cert.c), the call
64 i=s->ctx->app_verify_callback(&ctx)
66 i=s->ctx->app_verify_callback(&ctx, s->ctx->app_verify_arg).
68 To update applications using SSL_CTX_set_cert_verify_callback(),
69 a dummy argument can be added to their callback functions.
70 [D. K. Smetters <smetters@parc.xerox.com>]
72 *) Added the '4758cca' ENGINE to support IBM 4758 cards.
73 [Maurice Gittens <maurice@gittens.nl>, touchups by Geoff Thorpe]
75 *) Add and OPENSSL_LOAD_CONF define which will cause
76 OpenSSL_add_all_algorithms() to load the openssl.cnf config file.
77 This allows older applications to transparently support certain
78 OpenSSL features: such as crypto acceleration and dynamic ENGINE loading.
79 Two new functions OPENSSL_add_all_algorithms_noconf() which will never
80 load the config file and OPENSSL_add_all_algorithms_conf() which will
81 always load it have also been added.
84 *) Add the OFB, CFB and CTR (all with 128 bit feedback) to AES.
85 Adjust NIDs and EVP layer.
86 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
88 *) Config modules support in openssl utility.
90 Most commands now load modules from the config file,
91 though in a few (such as version) this isn't done
92 because it couldn't be used for anything.
94 In the case of ca and req the config file used is
95 the same as the utility itself: that is the -config
96 command line option can be used to specify an
100 *) Move default behaviour from OPENSSL_config(). If appname is NULL
101 use "openssl_conf" if filename is NULL use default openssl config file.
104 *) Add an argument to OPENSSL_config() to allow the use of an alternative
105 config section name. Add a new flag to tolerate a missing config file
106 and move code to CONF_modules_load_file().
109 *) Support for crypto accelerator cards from Accelerated Encryption
110 Processing, www.aep.ie. (Use engine 'aep')
111 The support was copied from 0.9.6c [engine] and adapted/corrected
112 to work with the new engine framework.
113 [AEP Inc. and Richard Levitte]
115 *) Support for SureWare crypto accelerator cards from Baltimore
116 Technologies. (Use engine 'sureware')
117 The support was copied from 0.9.6c [engine] and adapted
118 to work with the new engine framework.
121 *) Have the CHIL engine fork-safe (as defined by nCipher) and actually
122 make the newer ENGINE framework commands for the CHIL engine work.
123 [Toomas Kiisk <vix@cyber.ee> and Richard Levitte]
125 *) Make it possible to produce shared libraries on ReliantUNIX.
126 [Robert Dahlem <Robert.Dahlem@ffm2.siemens.de> via Richard Levitte]
128 *) Add the configuration target debug-linux-ppro.
129 Make 'openssl rsa' use the general key loading routines
130 implemented in apps.c, and make those routines able to
131 handle the key format FORMAT_NETSCAPE and the variant
133 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
135 *) Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
136 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
138 *) Add -keyform to rsautl, and document -engine.
139 [Richard Levitte, inspired by Toomas Kiisk <vix@cyber.ee>]
141 *) Change BIO_new_file (crypto/bio/bss_file.c) to use new
142 BIO_R_NO_SUCH_FILE error code rather than the generic
143 ERR_R_SYS_LIB error code if fopen() fails with ENOENT.
148 ERR_peek_last_error_line
149 ERR_peek_last_error_line_data.
153 ERR_peek_error_line_data,
154 but report on the latest error recorded rather than the first one
155 still in the error queue.
156 [Ben Laurie, Bodo Moeller]
158 *) default_algorithms option in ENGINE config module. This allows things
160 default_algorithms = ALL
161 default_algorithms = RSA, DSA, RAND, CIPHERS, DIGESTS
164 *) Prelminary ENGINE config module.
167 *) New experimental application configuration code.
170 *) Change the AES code to follow the same name structure as all other
171 symmetric ciphers, and behave the same way. Move everything to
172 the directory crypto/aes, thereby obsoleting crypto/rijndael.
173 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
175 *) SECURITY: remove unsafe setjmp/signal interaction from ui_openssl.c.
176 [Ben Laurie and Theo de Raadt]
178 *) Add option to output public keys in req command.
179 [Massimiliano Pala madwolf@openca.org]
181 *) Use wNAFs in EC_POINTs_mul() for improved efficiency
182 (up to about 10% better than before for P-192 and P-224).
185 *) New functions/macros
187 SSL_CTX_set_msg_callback(ctx, cb)
188 SSL_CTX_set_msg_callback_arg(ctx, arg)
189 SSL_set_msg_callback(ssl, cb)
190 SSL_set_msg_callback_arg(ssl, arg)
192 to request calling a callback function
194 void cb(int write_p, int version, int content_type,
195 const void *buf, size_t len, SSL *ssl, void *arg)
197 whenever a protocol message has been completely received
198 (write_p == 0) or sent (write_p == 1). Here 'version' is the
199 protocol version according to which the SSL library interprets
200 the current protocol message (SSL2_VERSION, SSL3_VERSION, or
201 TLS1_VERSION). 'content_type' is 0 in the case of SSL 2.0, or
202 the content type as defined in the SSL 3.0/TLS 1.0 protocol
203 specification (change_cipher_spec(20), alert(21), handshake(22)).
204 'buf' and 'len' point to the actual message, 'ssl' to the
205 SSL object, and 'arg' is the application-defined value set by
206 SSL[_CTX]_set_msg_callback_arg().
208 'openssl s_client' and 'openssl s_server' have new '-msg' options
209 to enable a callback that displays all protocol messages.
212 *) Change the shared library support so shared libraries are built as
213 soon as the corresponding static library is finished, and thereby get
214 openssl and the test programs linked against the shared library.
215 This still only happens when the keyword "shard" has been given to
216 the configuration scripts.
218 NOTE: shared library support is still an experimental thing, and
219 backward binary compatibility is still not guaranteed.
220 ["Maciej W. Rozycki" <macro@ds2.pg.gda.pl> and Richard Levitte]
222 *) Add support for Subject Information Access extension.
223 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
225 *) Make BUF_MEM_grow() behaviour more consistent: Initialise to zero
226 additional bytes when new memory had to be allocated, not just
227 when reusing an existing buffer.
230 *) New command line and configuration option 'utf8' for the req command.
231 This allows field values to be specified as UTF8 strings.
234 *) Add -multi and -mr options to "openssl speed" - giving multiple parallel
235 runs for the former and machine-readable output for the latter.
238 *) Add '-noemailDN' option to 'openssl ca'. This prevents inclusion
239 of the e-mail address in the DN (i.e., it will go into a certificate
240 extension only). The new configuration file option 'email_in_dn = no'
242 [Massimiliano Pala madwolf@openca.org]
244 *) Change all functions with names starting with des_ to be starting
245 with DES_ instead. Add wrappers that are compatible with libdes,
246 but are named _ossl_old_des_*. Finally, add macros that map the
247 des_* symbols to the corresponding _ossl_old_des_* if libdes
248 compatibility is desired. If OpenSSL 0.9.6c compatibility is
249 desired, the des_* symbols will be mapped to DES_*, with one
252 Since we provide two compatibility mappings, the user needs to
253 define the macro OPENSSL_DES_LIBDES_COMPATIBILITY if libdes
254 compatibility is desired. The default (i.e., when that macro
255 isn't defined) is OpenSSL 0.9.6c compatibility.
257 There are also macros that enable and disable the support of old
258 des functions altogether. Those are OPENSSL_ENABLE_OLD_DES_SUPPORT
259 and OPENSSL_DISABLE_OLD_DES_SUPPORT. If none or both of those
260 are defined, the default will apply: to support the old des routines.
262 In either case, one must include openssl/des.h to get the correct
263 definitions. Do not try to just include openssl/des_old.h, that
266 NOTE: This is a major break of an old API into a new one. Software
267 authors are encouraged to switch to the DES_ style functions. Some
268 time in the future, des_old.h and the libdes compatibility functions
269 will be disable (i.e. OPENSSL_DISABLE_OLD_DES_SUPPORT will be the
270 default), and then completely removed.
273 *) Test for certificates which contain unsupported critical extensions.
274 If such a certificate is found during a verify operation it is
275 rejected by default: this behaviour can be overridden by either
276 handling the new error X509_V_ERR_UNHANDLED_CRITICAL_EXTENSION or
277 by setting the verify flag X509_V_FLAG_IGNORE_CRITICAL. A new function
278 X509_supported_extension() has also been added which returns 1 if a
279 particular extension is supported.
282 *) Modify the behaviour of EVP cipher functions in similar way to digests
283 to retain compatibility with existing code.
286 *) Modify the behaviour of EVP_DigestInit() and EVP_DigestFinal() to retain
287 compatibility with existing code. In particular the 'ctx' parameter does
288 not have to be to be initialized before the call to EVP_DigestInit() and
289 it is tidied up after a call to EVP_DigestFinal(). New function
290 EVP_DigestFinal_ex() which does not tidy up the ctx. Similarly function
291 EVP_MD_CTX_copy() changed to not require the destination to be
292 initialized valid and new function EVP_MD_CTX_copy_ex() added which
293 requires the destination to be valid.
295 Modify all the OpenSSL digest calls to use EVP_DigestInit_ex(),
296 EVP_DigestFinal_ex() and EVP_MD_CTX_copy_ex().
299 *) Change ssl3_get_message (ssl/s3_both.c) and the functions using it
300 so that complete 'Handshake' protocol structures are kept in memory
301 instead of overwriting 'msg_type' and 'length' with 'body' data.
304 *) Add an implementation of SSL_add_dir_cert_subjects_to_stack for Win32.
305 [Massimo Santin via Richard Levitte]
307 *) Major restructuring to the underlying ENGINE code. This includes
308 reduction of linker bloat, separation of pure "ENGINE" manipulation
309 (initialisation, etc) from functionality dealing with implementations
310 of specific crypto iterfaces. This change also introduces integrated
311 support for symmetric ciphers and digest implementations - so ENGINEs
312 can now accelerate these by providing EVP_CIPHER and EVP_MD
313 implementations of their own. This is detailed in crypto/engine/README
314 as it couldn't be adequately described here. However, there are a few
315 API changes worth noting - some RSA, DSA, DH, and RAND functions that
316 were changed in the original introduction of ENGINE code have now
317 reverted back - the hooking from this code to ENGINE is now a good
318 deal more passive and at run-time, operations deal directly with
319 RSA_METHODs, DSA_METHODs (etc) as they did before, rather than
320 dereferencing through an ENGINE pointer any more. Also, the ENGINE
321 functions dealing with BN_MOD_EXP[_CRT] handlers have been removed -
322 they were not being used by the framework as there is no concept of a
323 BIGNUM_METHOD and they could not be generalised to the new
324 'ENGINE_TABLE' mechanism that underlies the new code. Similarly,
325 ENGINE_cpy() has been removed as it cannot be consistently defined in
329 *) Change ASN1_GENERALIZEDTIME_check() to allow fractional seconds.
332 *) Change mkdef.pl to sort symbols that get the same entry number,
333 and make sure the automatically generated functions ERR_load_*
334 become part of libeay.num as well.
337 *) New function SSL_renegotiate_pending(). This returns true once
338 renegotiation has been requested (either SSL_renegotiate() call
339 or HelloRequest/ClientHello receveived from the peer) and becomes
340 false once a handshake has been completed.
341 (For servers, SSL_renegotiate() followed by SSL_do_handshake()
342 sends a HelloRequest, but does not ensure that a handshake takes
343 place. SSL_renegotiate_pending() is useful for checking if the
344 client has followed the request.)
347 *) New SSL option SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION.
348 By default, clients may request session resumption even during
349 renegotiation (if session ID contexts permit); with this option,
350 session resumption is possible only in the first handshake.
353 *) Add some demos for certificate and certificate request creation.
356 *) Make maximum certificate chain size accepted from the peer application
357 settable (SSL*_get/set_max_cert_list()), as proposed by
358 "Douglas E. Engert" <deengert@anl.gov>.
361 *) Add support for shared libraries for Unixware-7
362 (Boyd Lynn Gerber <gerberb@zenez.com>).
365 *) Add a "destroy" handler to ENGINEs that allows structural cleanup to
366 be done prior to destruction. Use this to unload error strings from
367 ENGINEs that load their own error strings. NB: This adds two new API
368 functions to "get" and "set" this destroy handler in an ENGINE.
371 *) Alter all existing ENGINE implementations (except "openssl" and
372 "openbsd") to dynamically instantiate their own error strings. This
373 makes them more flexible to be built both as statically-linked ENGINEs
374 and self-contained shared-libraries loadable via the "dynamic" ENGINE.
375 Also, add stub code to each that makes building them as self-contained
376 shared-libraries easier (see README.ENGINE).
379 *) Add a "dynamic" ENGINE that provides a mechanism for binding ENGINE
380 implementations into applications that are completely implemented in
381 self-contained shared-libraries. The "dynamic" ENGINE exposes control
382 commands that can be used to configure what shared-library to load and
383 to control aspects of the way it is handled. Also, made an update to
384 the README.ENGINE file that brings its information up-to-date and
385 provides some information and instructions on the "dynamic" ENGINE
386 (ie. how to use it, how to build "dynamic"-loadable ENGINEs, etc).
389 *) Make it possible to unload ranges of ERR strings with a new
390 "ERR_unload_strings" function.
393 *) Add a copy() function to EVP_MD.
396 *) Make EVP_MD routines take a context pointer instead of just the
397 md_data void pointer.
400 *) Add flags to EVP_MD and EVP_MD_CTX. EVP_MD_FLAG_ONESHOT indicates
401 that the digest can only process a single chunk of data
402 (typically because it is provided by a piece of
403 hardware). EVP_MD_CTX_FLAG_ONESHOT indicates that the application
404 is only going to provide a single chunk of data, and hence the
405 framework needn't accumulate the data for oneshot drivers.
408 *) As with "ERR", make it possible to replace the underlying "ex_data"
409 functions. This change also alters the storage and management of global
410 ex_data state - it's now all inside ex_data.c and all "class" code (eg.
411 RSA, BIO, SSL_CTX, etc) no longer stores its own STACKS and per-class
412 index counters. The API functions that use this state have been changed
413 to take a "class_index" rather than pointers to the class's local STACK
414 and counter, and there is now an API function to dynamically create new
415 classes. This centralisation allows us to (a) plug a lot of the
416 thread-safety problems that existed, and (b) makes it possible to clean
417 up all allocated state using "CRYPTO_cleanup_all_ex_data()". W.r.t. (b)
418 such data would previously have always leaked in application code and
419 workarounds were in place to make the memory debugging turn a blind eye
420 to it. Application code that doesn't use this new function will still
421 leak as before, but their memory debugging output will announce it now
422 rather than letting it slide.
424 Besides the addition of CRYPTO_cleanup_all_ex_data(), another API change
425 induced by the "ex_data" overhaul is that X509_STORE_CTX_init() now
426 has a return value to indicate success or failure.
429 *) Make it possible to replace the underlying "ERR" functions such that the
430 global state (2 LHASH tables and 2 locks) is only used by the "default"
431 implementation. This change also adds two functions to "get" and "set"
432 the implementation prior to it being automatically set the first time
433 any other ERR function takes place. Ie. an application can call "get",
434 pass the return value to a module it has just loaded, and that module
435 can call its own "set" function using that value. This means the
436 module's "ERR" operations will use (and modify) the error state in the
437 application and not in its own statically linked copy of OpenSSL code.
440 *) Give DH, DSA, and RSA types their own "**_up_ref()" function to increment
441 reference counts. This performs normal REF_PRINT/REF_CHECK macros on
442 the operation, and provides a more encapsulated way for external code
443 (crypto/evp/ and ssl/) to do this. Also changed the evp and ssl code
444 to use these functions rather than manually incrementing the counts.
446 Also rename "DSO_up()" function to more descriptive "DSO_up_ref()".
449 *) Add EVP test program.
452 *) Add symmetric cipher support to ENGINE. Expect the API to change!
455 *) New CRL functions: X509_CRL_set_version(), X509_CRL_set_issuer_name()
456 X509_CRL_set_lastUpdate(), X509_CRL_set_nextUpdate(), X509_CRL_sort(),
457 X509_REVOKED_set_serialNumber(), and X509_REVOKED_set_revocationDate().
458 These allow a CRL to be built without having to access X509_CRL fields
459 directly. Modify 'ca' application to use new functions.
462 *) Move SSL_OP_TLS_ROLLBACK_BUG out of the SSL_OP_ALL list of recommended
463 bug workarounds. Rollback attack detection is a security feature.
464 The problem will only arise on OpenSSL servers when TLSv1 is not
465 available (sslv3_server_method() or SSL_OP_NO_TLSv1).
466 Software authors not wanting to support TLSv1 will have special reasons
467 for their choice and can explicitly enable this option.
468 [Bodo Moeller, Lutz Jaenicke]
470 *) Rationalise EVP so it can be extended: don't include a union of
471 cipher/digest structures, add init/cleanup functions. This also reduces
472 the number of header dependencies.
477 EVP_MD_CTX_init(&md); /* new function call */
478 EVP_DigestInit(&md, EVP_sha1());
479 EVP_DigestUpdate(&md, in, len);
480 EVP_DigestFinal(&md, out, NULL);
481 EVP_MD_CTX_cleanup(&md); /* new function call */
485 *) Make DES key schedule conform to the usual scheme, as well as
486 correcting its structure. This means that calls to DES functions
487 now have to pass a pointer to a des_key_schedule instead of a
488 plain des_key_schedule (which was actually always a pointer
493 des_set_key_checked(..., &ks);
494 des_ncbc_encrypt(..., &ks, ...);
496 (Note that a later change renames 'des_...' into 'DES_...'.)
499 *) Initial reduction of linker bloat: the use of some functions, such as
500 PEM causes large amounts of unused functions to be linked in due to
501 poor organisation. For example pem_all.c contains every PEM function
502 which has a knock on effect of linking in large amounts of (unused)
503 ASN1 code. Grouping together similar functions and splitting unrelated
504 functions prevents this.
507 *) Cleanup of EVP macros.
510 *) Change historical references to {NID,SN,LN}_des_ede and ede3 to add the
514 *) Add initial OCSP responder support to ocsp application. The
515 revocation information is handled using the text based index
516 use by the ca application. The responder can either handle
517 requests generated internally, supplied in files (for example
518 via a CGI script) or using an internal minimal server.
521 *) Add configuration choices to get zlib compression for TLS.
524 *) Changes to Kerberos SSL for RFC 2712 compliance:
525 1. Implemented real KerberosWrapper, instead of just using
526 KRB5 AP_REQ message. [Thanks to Simon Wilkinson <sxw@sxw.org.uk>]
527 2. Implemented optional authenticator field of KerberosWrapper.
529 Added openssl-style ASN.1 macros for Kerberos ticket, ap_req,
530 and authenticator structs; see crypto/krb5/.
532 Generalized Kerberos calls to support multiple Kerberos libraries.
533 [Vern Staats <staatsvr@asc.hpc.mil>,
534 Jeffrey Altman <jaltman@columbia.edu>
537 *) Cause 'openssl speed' to use fully hard-coded DSA keys as it
538 already does with RSA. testdsa.h now has 'priv_key/pub_key'
539 values for each of the key sizes rather than having just
540 parameters (and 'speed' generating keys each time).
543 *) Speed up EVP routines.
546 type 8 bytes 64 bytes 256 bytes 1024 bytes 8192 bytes
547 des-cbc 4408.85k 5560.51k 5778.46k 5862.20k 5825.16k
548 des-cbc 4389.55k 5571.17k 5792.23k 5846.91k 5832.11k
549 des-cbc 4394.32k 5575.92k 5807.44k 5848.37k 5841.30k
551 des-cbc 3482.66k 5069.49k 5496.39k 5614.16k 5639.28k
552 des-cbc 3480.74k 5068.76k 5510.34k 5609.87k 5635.52k
553 des-cbc 3483.72k 5067.62k 5504.60k 5708.01k 5724.80k
556 des-cbc 4660.16k 5650.19k 5807.19k 5827.13k 5783.32k
558 des-cbc 3624.96k 5258.21k 5530.91k 5624.30k 5628.26k
561 *) Added the OS2-EMX target.
562 ["Brian Havard" <brianh@kheldar.apana.org.au> and Richard Levitte]
564 *) Rewrite apps to use NCONF routines instead of the old CONF. New functions
565 to support NCONF routines in extension code. New function CONF_set_nconf()
566 to allow functions which take an NCONF to also handle the old LHASH
567 structure: this means that the old CONF compatible routines can be
568 retained (in particular wrt extensions) without having to duplicate the
569 code. New function X509V3_add_ext_nconf_sk to add extensions to a stack.
572 *) Enhance the general user interface with mechanisms for inner control
573 and with possibilities to have yes/no kind of prompts.
576 *) Change all calls to low level digest routines in the library and
577 applications to use EVP. Add missing calls to HMAC_cleanup() and
578 don't assume HMAC_CTX can be copied using memcpy().
579 [Verdon Walker <VWalker@novell.com>, Steve Henson]
581 *) Add the possibility to control engines through control names but with
582 arbitrary arguments instead of just a string.
583 Change the key loaders to take a UI_METHOD instead of a callback
584 function pointer. NOTE: this breaks binary compatibility with earlier
585 versions of OpenSSL [engine].
586 Adapt the nCipher code for these new conditions and add a card insertion
590 *) Enhance the general user interface with mechanisms to better support
591 dialog box interfaces, application-defined prompts, the possibility
592 to use defaults (for example default passwords from somewhere else)
593 and interrupts/cancellations.
596 *) Tidy up PKCS#12 attribute handling. Add support for the CSP name
597 attribute in PKCS#12 files, add new -CSP option to pkcs12 utility.
600 *) Fix a memory leak in 'sk_dup()' in the case reallocation fails. (Also
601 tidy up some unnecessarily weird code in 'sk_new()').
602 [Geoff, reported by Diego Tartara <dtartara@novamens.com>]
604 *) Change the key loading routines for ENGINEs to use the same kind
605 callback (pem_password_cb) as all other routines that need this
609 *) Increase ENTROPY_NEEDED to 32 bytes, as Rijndael can operate with
610 256 bit (=32 byte) keys. Of course seeding with more entropy bytes
611 than this minimum value is recommended.
614 *) New random seeder for OpenVMS, using the system process statistics
615 that are easily reachable.
618 *) Windows apparently can't transparently handle global
619 variables defined in DLLs. Initialisations such as:
621 const ASN1_ITEM *it = &ASN1_INTEGER_it;
623 wont compile. This is used by the any applications that need to
624 declare their own ASN1 modules. This was fixed by adding the option
625 EXPORT_VAR_AS_FN to all Win32 platforms, although this isn't strictly
626 needed for static libraries under Win32.
629 *) New functions X509_PURPOSE_set() and X509_TRUST_set() to handle
630 setting of purpose and trust fields. New X509_STORE trust and
631 purpose functions and tidy up setting in other SSL functions.
634 *) Add copies of X509_STORE_CTX fields and callbacks to X509_STORE
635 structure. These are inherited by X509_STORE_CTX when it is
636 initialised. This allows various defaults to be set in the
637 X509_STORE structure (such as flags for CRL checking and custom
638 purpose or trust settings) for functions which only use X509_STORE_CTX
639 internally such as S/MIME.
641 Modify X509_STORE_CTX_purpose_inherit() so it only sets purposes and
642 trust settings if they are not set in X509_STORE. This allows X509_STORE
643 purposes and trust (in S/MIME for example) to override any set by default.
645 Add command line options for CRL checking to smime, s_client and s_server
649 *) Initial CRL based revocation checking. If the CRL checking flag(s)
650 are set then the CRL is looked up in the X509_STORE structure and
651 its validity and signature checked, then if the certificate is found
652 in the CRL the verify fails with a revoked error.
654 Various new CRL related callbacks added to X509_STORE_CTX structure.
656 Command line options added to 'verify' application to support this.
658 This needs some additional work, such as being able to handle multiple
659 CRLs with different times, extension based lookup (rather than just
660 by subject name) and ultimately more complete V2 CRL extension
664 *) Add a general user interface API (crypto/ui/). This is designed
665 to replace things like des_read_password and friends (backward
666 compatibility functions using this new API are provided).
667 The purpose is to remove prompting functions from the DES code
668 section as well as provide for prompting through dialog boxes in
669 a window system and the like.
672 *) Add "ex_data" support to ENGINE so implementations can add state at a
673 per-structure level rather than having to store it globally.
676 *) Make it possible for ENGINE structures to be copied when retrieved by
677 ENGINE_by_id() if the ENGINE specifies a new flag: ENGINE_FLAGS_BY_ID_COPY.
678 This causes the "original" ENGINE structure to act like a template,
679 analogous to the RSA vs. RSA_METHOD type of separation. Because of this
680 operational state can be localised to each ENGINE structure, despite the
681 fact they all share the same "methods". New ENGINE structures returned in
682 this case have no functional references and the return value is the single
683 structural reference. This matches the single structural reference returned
684 by ENGINE_by_id() normally, when it is incremented on the pre-existing
688 *) Fix ASN1 decoder when decoding type ANY and V_ASN1_OTHER: since this
689 needs to match any other type at all we need to manually clear the
693 *) Changes to the "openssl engine" utility to include;
694 - verbosity levels ('-v', '-vv', and '-vvv') that provide information
695 about an ENGINE's available control commands.
696 - executing control commands from command line arguments using the
697 '-pre' and '-post' switches. '-post' is only used if '-t' is
698 specified and the ENGINE is successfully initialised. The syntax for
699 the individual commands are colon-separated, for example;
700 openssl engine chil -pre FORK_CHECK:0 -pre SO_PATH:/lib/test.so
703 *) New dynamic control command support for ENGINEs. ENGINEs can now
704 declare their own commands (numbers), names (strings), descriptions,
705 and input types for run-time discovery by calling applications. A
706 subset of these commands are implicitly classed as "executable"
707 depending on their input type, and only these can be invoked through
708 the new string-based API function ENGINE_ctrl_cmd_string(). (Eg. this
709 can be based on user input, config files, etc). The distinction is
710 that "executable" commands cannot return anything other than a boolean
711 result and can only support numeric or string input, whereas some
712 discoverable commands may only be for direct use through
713 ENGINE_ctrl(), eg. supporting the exchange of binary data, function
714 pointers, or other custom uses. The "executable" commands are to
715 support parameterisations of ENGINE behaviour that can be
716 unambiguously defined by ENGINEs and used consistently across any
717 OpenSSL-based application. Commands have been added to all the
718 existing hardware-supporting ENGINEs, noticeably "SO_PATH" to allow
719 control over shared-library paths without source code alterations.
722 *) Changed all ENGINE implementations to dynamically allocate their
723 ENGINEs rather than declaring them statically. Apart from this being
724 necessary with the removal of the ENGINE_FLAGS_MALLOCED distinction,
725 this also allows the implementations to compile without using the
726 internal engine_int.h header.
729 *) Minor adjustment to "rand" code. RAND_get_rand_method() now returns a
730 'const' value. Any code that should be able to modify a RAND_METHOD
731 should already have non-const pointers to it (ie. they should only
732 modify their own ones).
735 *) Made a variety of little tweaks to the ENGINE code.
736 - "atalla" and "ubsec" string definitions were moved from header files
737 to C code. "nuron" string definitions were placed in variables
738 rather than hard-coded - allowing parameterisation of these values
739 later on via ctrl() commands.
740 - Removed unused "#if 0"'d code.
741 - Fixed engine list iteration code so it uses ENGINE_free() to release
742 structural references.
743 - Constified the RAND_METHOD element of ENGINE structures.
744 - Constified various get/set functions as appropriate and added
745 missing functions (including a catch-all ENGINE_cpy that duplicates
746 all ENGINE values onto a new ENGINE except reference counts/state).
747 - Removed NULL parameter checks in get/set functions. Setting a method
748 or function to NULL is a way of cancelling out a previously set
749 value. Passing a NULL ENGINE parameter is just plain stupid anyway
750 and doesn't justify the extra error symbols and code.
751 - Deprecate the ENGINE_FLAGS_MALLOCED define and move the area for
752 flags from engine_int.h to engine.h.
753 - Changed prototypes for ENGINE handler functions (init(), finish(),
754 ctrl(), key-load functions, etc) to take an (ENGINE*) parameter.
757 *) Implement binary inversion algorithm for BN_mod_inverse in addition
758 to the algorithm using long division. The binary algorithm can be
759 used only if the modulus is odd. On 32-bit systems, it is faster
760 only for relatively small moduli (roughly 20-30% for 128-bit moduli,
761 roughly 5-15% for 256-bit moduli), so we use it only for moduli
762 up to 450 bits. In 64-bit environments, the binary algorithm
763 appears to be advantageous for much longer moduli; here we use it
764 for moduli up to 2048 bits.
767 *) Rewrite CHOICE field setting in ASN1_item_ex_d2i(). The old code
768 could not support the combine flag in choice fields.
771 *) Add a 'copy_extensions' option to the 'ca' utility. This copies
772 extensions from a certificate request to the certificate.
775 *) Allow multiple 'certopt' and 'nameopt' options to be separated
776 by commas. Add 'namopt' and 'certopt' options to the 'ca' config
777 file: this allows the display of the certificate about to be
778 signed to be customised, to allow certain fields to be included
779 or excluded and extension details. The old system didn't display
780 multicharacter strings properly, omitted fields not in the policy
781 and couldn't display additional details such as extensions.
784 *) Function EC_POINTs_mul for multiple scalar multiplication
785 of an arbitrary number of elliptic curve points
786 \sum scalars[i]*points[i],
787 optionally including the generator defined for the EC_GROUP:
788 scalar*generator + \sum scalars[i]*points[i].
790 EC_POINT_mul is a simple wrapper function for the typical case
791 that the point list has just one item (besides the optional
795 *) First EC_METHODs for curves over GF(p):
797 EC_GFp_simple_method() uses the basic BN_mod_mul and BN_mod_sqr
798 operations and provides various method functions that can also
799 operate with faster implementations of modular arithmetic.
801 EC_GFp_mont_method() reuses most functions that are part of
802 EC_GFp_simple_method, but uses Montgomery arithmetic.
804 [Bodo Moeller; point addition and point doubling
805 implementation directly derived from source code provided by
806 Lenka Fibikova <fibikova@exp-math.uni-essen.de>]
808 *) Framework for elliptic curves (crypto/ec/ec.h, crypto/ec/ec_lcl.h,
811 Curves are EC_GROUP objects (with an optional group generator)
812 based on EC_METHODs that are built into the library.
814 Points are EC_POINT objects based on EC_GROUP objects.
816 Most of the framework would be able to handle curves over arbitrary
817 finite fields, but as there are no obvious types for fields other
818 than GF(p), some functions are limited to that for now.
821 *) Add the -HTTP option to s_server. It is similar to -WWW, but requires
822 that the file contains a complete HTTP response.
825 *) Add the ec directory to mkdef.pl and mkfiles.pl. In mkdef.pl
826 change the def and num file printf format specifier from "%-40sXXX"
827 to "%-39s XXX". The latter will always guarantee a space after the
828 field while the former will cause them to run together if the field
829 is 40 of more characters long.
832 *) Constify the cipher and digest 'method' functions and structures
833 and modify related functions to take constant EVP_MD and EVP_CIPHER
837 *) Hide BN_CTX structure details in bn_lcl.h instead of publishing them
838 in <openssl/bn.h>. Also further increase BN_CTX_NUM to 32.
841 *) Modify EVP_Digest*() routines so they now return values. Although the
842 internal software routines can never fail additional hardware versions
846 *) Clean up crypto/err/err.h and change some error codes to avoid conflicts:
848 Previously ERR_R_FATAL was too small and coincided with ERR_LIB_PKCS7
849 (= ERR_R_PKCS7_LIB); it is now 64 instead of 32.
852 ERR_R_NESTED_ASN1_ERROR
854 ERR_R_MISSING_ASN1_EOS
855 were 4 .. 9, conflicting with
856 ERR_LIB_RSA (= ERR_R_RSA_LIB)
858 ERR_LIB_PEM (= ERR_R_PEM_LIB).
859 They are now 58 .. 63 (i.e., just below ERR_R_FATAL).
861 Add new error code 'ERR_R_INTERNAL_ERROR'.
864 *) Don't overuse locks in crypto/err/err.c: For data retrieval, CRYPTO_r_lock
868 *) New option '-subj arg' for 'openssl req' and 'openssl ca'. This
869 sets the subject name for a new request or supersedes the
870 subject name in a given request. Formats that can be parsed are
871 'CN=Some Name, OU=myOU, C=IT'
873 'CN=Some Name/OU=myOU/C=IT'.
875 Add options '-batch' and '-verbose' to 'openssl req'.
876 [Massimiliano Pala <madwolf@hackmasters.net>]
878 *) Introduce the possibility to access global variables through
879 functions on platform were that's the best way to handle exporting
880 global variables in shared libraries. To enable this functionality,
881 one must configure with "EXPORT_VAR_AS_FN" or defined the C macro
882 "OPENSSL_EXPORT_VAR_AS_FUNCTION" in crypto/opensslconf.h (the latter
883 is normally done by Configure or something similar).
885 To implement a global variable, use the macro OPENSSL_IMPLEMENT_GLOBAL
886 in the source file (foo.c) like this:
888 OPENSSL_IMPLEMENT_GLOBAL(int,foo)=1;
889 OPENSSL_IMPLEMENT_GLOBAL(double,bar);
891 To declare a global variable, use the macros OPENSSL_DECLARE_GLOBAL
892 and OPENSSL_GLOBAL_REF in the header file (foo.h) like this:
894 OPENSSL_DECLARE_GLOBAL(int,foo);
895 #define foo OPENSSL_GLOBAL_REF(foo)
896 OPENSSL_DECLARE_GLOBAL(double,bar);
897 #define bar OPENSSL_GLOBAL_REF(bar)
899 The #defines are very important, and therefore so is including the
900 header file everywhere where the defined globals are used.
902 The macro OPENSSL_EXPORT_VAR_AS_FUNCTION also affects the definition
903 of ASN.1 items, but that structure is a bit different.
905 The largest change is in util/mkdef.pl which has been enhanced with
906 better and easier to understand logic to choose which symbols should
907 go into the Windows .def files as well as a number of fixes and code
908 cleanup (among others, algorithm keywords are now sorted
909 lexicographically to avoid constant rewrites).
912 *) In BN_div() keep a copy of the sign of 'num' before writing the
913 result to 'rm' because if rm==num the value will be overwritten
914 and produce the wrong result if 'num' is negative: this caused
915 problems with BN_mod() and BN_nnmod().
918 *) Function OCSP_request_verify(). This checks the signature on an
919 OCSP request and verifies the signer certificate. The signer
920 certificate is just checked for a generic purpose and OCSP request
924 *) Add OCSP_check_validity() function to check the validity of OCSP
925 responses. OCSP responses are prepared in real time and may only
926 be a few seconds old. Simply checking that the current time lies
927 between thisUpdate and nextUpdate max reject otherwise valid responses
928 caused by either OCSP responder or client clock inaccuracy. Instead
929 we allow thisUpdate and nextUpdate to fall within a certain period of
930 the current time. The age of the response can also optionally be
931 checked. Two new options -validity_period and -status_age added to
935 *) If signature or public key algorithm is unrecognized print out its
936 OID rather that just UNKNOWN.
939 *) Change OCSP_cert_to_id() to tolerate a NULL subject certificate and
940 OCSP_cert_id_new() a NULL serialNumber. This allows a partial certificate
941 ID to be generated from the issuer certificate alone which can then be
942 passed to OCSP_id_issuer_cmp().
945 *) New compilation option ASN1_ITEM_FUNCTIONS. This causes the new
946 ASN1 modules to export functions returning ASN1_ITEM pointers
947 instead of the ASN1_ITEM structures themselves. This adds several
948 new macros which allow the underlying ASN1 function/structure to
949 be accessed transparently. As a result code should not use ASN1_ITEM
950 references directly (such as &X509_it) but instead use the relevant
951 macros (such as ASN1_ITEM_rptr(X509)). This option is to allow
952 use of the new ASN1 code on platforms where exporting structures
953 is problematical (for example in shared libraries) but exporting
954 functions returning pointers to structures is not.
957 *) Add support for overriding the generation of SSL/TLS session IDs.
958 These callbacks can be registered either in an SSL_CTX or per SSL.
959 The purpose of this is to allow applications to control, if they wish,
960 the arbitrary values chosen for use as session IDs, particularly as it
961 can be useful for session caching in multiple-server environments. A
962 command-line switch for testing this (and any client code that wishes
963 to use such a feature) has been added to "s_server".
964 [Geoff Thorpe, Lutz Jaenicke]
966 *) Modify mkdef.pl to recognise and parse preprocessor conditionals
967 of the form '#if defined(...) || defined(...) || ...' and
968 '#if !defined(...) && !defined(...) && ...'. This also avoids
969 the growing number of special cases it was previously handling.
972 *) Make all configuration macros available for application by making
973 sure they are available in opensslconf.h, by giving them names starting
974 with "OPENSSL_" to avoid conflicts with other packages and by making
975 sure e_os2.h will cover all platform-specific cases together with
977 Additionally, it is now possible to define configuration/platform-
978 specific names (called "system identities"). In the C code, these
979 are prefixed with "OPENSSL_SYSNAME_". e_os2.h will create another
980 macro with the name beginning with "OPENSSL_SYS_", which is determined
981 from "OPENSSL_SYSNAME_*" or compiler-specific macros depending on
985 *) New option -set_serial to 'req' and 'x509' this allows the serial
986 number to use to be specified on the command line. Previously self
987 signed certificates were hard coded with serial number 0 and the
988 CA options of 'x509' had to use a serial number in a file which was
992 *) New options to 'ca' utility to support V2 CRL entry extensions.
993 Currently CRL reason, invalidity date and hold instruction are
994 supported. Add new CRL extensions to V3 code and some new objects.
997 *) New function EVP_CIPHER_CTX_set_padding() this is used to
998 disable standard block padding (aka PKCS#5 padding) in the EVP
999 API, which was previously mandatory. This means that the data is
1000 not padded in any way and so the total length much be a multiple
1001 of the block size, otherwise an error occurs.
1004 *) Initial (incomplete) OCSP SSL support.
1007 *) New function OCSP_parse_url(). This splits up a URL into its host,
1008 port and path components: primarily to parse OCSP URLs. New -url
1009 option to ocsp utility.
1012 *) New nonce behavior. The return value of OCSP_check_nonce() now
1013 reflects the various checks performed. Applications can decide
1014 whether to tolerate certain situations such as an absent nonce
1015 in a response when one was present in a request: the ocsp application
1016 just prints out a warning. New function OCSP_add1_basic_nonce()
1017 this is to allow responders to include a nonce in a response even if
1018 the request is nonce-less.
1021 *) Disable stdin buffering in load_cert (apps/apps.c) so that no certs are
1022 skipped when using openssl x509 multiple times on a single input file,
1023 e.g. "(openssl x509 -out cert1; openssl x509 -out cert2) <certs".
1026 *) Make ASN1_UTCTIME_set_string() and ASN1_GENERALIZEDTIME_set_string()
1027 set string type: to handle setting ASN1_TIME structures. Fix ca
1028 utility to correctly initialize revocation date of CRLs.
1031 *) New option SSL_OP_CIPHER_SERVER_PREFERENCE allows the server to override
1032 the clients preferred ciphersuites and rather use its own preferences.
1033 Should help to work around M$ SGC (Server Gated Cryptography) bug in
1034 Internet Explorer by ensuring unchanged hash method during stepup.
1035 (Also replaces the broken/deactivated SSL_OP_NON_EXPORT_FIRST option.)
1038 *) Make mkdef.pl recognise all DECLARE_ASN1 macros, change rijndael
1039 to aes and add a new 'exist' option to print out symbols that don't
1043 *) Additional options to ocsp utility to allow flags to be set and
1044 additional certificates supplied.
1047 *) Add the option -VAfile to 'openssl ocsp', so the user can give the
1048 OCSP client a number of certificate to only verify the response
1052 *) Update Rijndael code to version 3.0 and change EVP AES ciphers to
1053 handle the new API. Currently only ECB, CBC modes supported. Add new
1054 AES OIDs. Add TLS AES ciphersuites as described in the "AES Ciphersuites
1055 for TLS" draft-ietf-tls-ciphersuite-03.txt.
1056 [Ben Laurie, Steve Henson]
1058 *) New function OCSP_copy_nonce() to copy nonce value (if present) from
1059 request to response.
1062 *) Functions for OCSP responders. OCSP_request_onereq_count(),
1063 OCSP_request_onereq_get0(), OCSP_onereq_get0_id() and OCSP_id_get0_info()
1064 extract information from a certificate request. OCSP_response_create()
1065 creates a response and optionally adds a basic response structure.
1066 OCSP_basic_add1_status() adds a complete single response to a basic
1067 response and returns the OCSP_SINGLERESP structure just added (to allow
1068 extensions to be included for example). OCSP_basic_add1_cert() adds a
1069 certificate to a basic response and OCSP_basic_sign() signs a basic
1070 response with various flags. New helper functions ASN1_TIME_check()
1071 (checks validity of ASN1_TIME structure) and ASN1_TIME_to_generalizedtime()
1072 (converts ASN1_TIME to GeneralizedTime).
1075 *) Various new functions. EVP_Digest() combines EVP_Digest{Init,Update,Final}()
1076 in a single operation. X509_get0_pubkey_bitstr() extracts the public_key
1077 structure from a certificate. X509_pubkey_digest() digests the public_key
1078 contents: this is used in various key identifiers.
1081 *) Make sk_sort() tolerate a NULL argument.
1082 [Steve Henson reported by Massimiliano Pala <madwolf@comune.modena.it>]
1084 *) New OCSP verify flag OCSP_TRUSTOTHER. When set the "other" certificates
1085 passed by the function are trusted implicitly. If any of them signed the
1086 response then it is assumed to be valid and is not verified.
1089 *) In PKCS7_set_type() initialise content_type in PKCS7_ENC_CONTENT
1090 to data. This was previously part of the PKCS7 ASN1 code. This
1091 was causing problems with OpenSSL created PKCS#12 and PKCS#7 structures.
1092 [Steve Henson, reported by Kenneth R. Robinette
1093 <support@securenetterm.com>]
1095 *) Add CRYPTO_push_info() and CRYPTO_pop_info() calls to new ASN1
1096 routines: without these tracing memory leaks is very painful.
1097 Fix leaks in PKCS12 and PKCS7 routines.
1100 *) Make X509_time_adj() cope with the new behaviour of ASN1_TIME_new().
1101 Previously it initialised the 'type' argument to V_ASN1_UTCTIME which
1102 effectively meant GeneralizedTime would never be used. Now it
1103 is initialised to -1 but X509_time_adj() now has to check the value
1104 and use ASN1_TIME_set() if the value is not V_ASN1_UTCTIME or
1105 V_ASN1_GENERALIZEDTIME, without this it always uses GeneralizedTime.
1106 [Steve Henson, reported by Kenneth R. Robinette
1107 <support@securenetterm.com>]
1109 *) Fixes to BN_to_ASN1_INTEGER when bn is zero. This would previously
1110 result in a zero length in the ASN1_INTEGER structure which was
1111 not consistent with the structure when d2i_ASN1_INTEGER() was used
1112 and would cause ASN1_INTEGER_cmp() to fail. Enhance s2i_ASN1_INTEGER()
1113 to cope with hex and negative integers. Fix bug in i2a_ASN1_INTEGER()
1114 where it did not print out a minus for negative ASN1_INTEGER.
1117 *) Add summary printout to ocsp utility. The various functions which
1118 convert status values to strings have been renamed to:
1119 OCSP_response_status_str(), OCSP_cert_status_str() and
1120 OCSP_crl_reason_str() and are no longer static. New options
1121 to verify nonce values and to disable verification. OCSP response
1122 printout format cleaned up.
1125 *) Add additional OCSP certificate checks. These are those specified
1126 in RFC2560. This consists of two separate checks: the CA of the
1127 certificate being checked must either be the OCSP signer certificate
1128 or the issuer of the OCSP signer certificate. In the latter case the
1129 OCSP signer certificate must contain the OCSP signing extended key
1130 usage. This check is performed by attempting to match the OCSP
1131 signer or the OCSP signer CA to the issuerNameHash and issuerKeyHash
1132 in the OCSP_CERTID structures of the response.
1135 *) Initial OCSP certificate verification added to OCSP_basic_verify()
1136 and related routines. This uses the standard OpenSSL certificate
1137 verify routines to perform initial checks (just CA validity) and
1138 to obtain the certificate chain. Then additional checks will be
1139 performed on the chain. Currently the root CA is checked to see
1140 if it is explicitly trusted for OCSP signing. This is used to set
1141 a root CA as a global signing root: that is any certificate that
1142 chains to that CA is an acceptable OCSP signing certificate.
1145 *) New '-extfile ...' option to 'openssl ca' for reading X.509v3
1146 extensions from a separate configuration file.
1147 As when reading extensions from the main configuration file,
1148 the '-extensions ...' option may be used for specifying the
1150 [Massimiliano Pala <madwolf@comune.modena.it>]
1152 *) New OCSP utility. Allows OCSP requests to be generated or
1153 read. The request can be sent to a responder and the output
1154 parsed, outputed or printed in text form. Not complete yet:
1155 still needs to check the OCSP response validity.
1158 *) New subcommands for 'openssl ca':
1159 'openssl ca -status <serial>' prints the status of the cert with
1160 the given serial number (according to the index file).
1161 'openssl ca -updatedb' updates the expiry status of certificates
1163 [Massimiliano Pala <madwolf@comune.modena.it>]
1165 *) New '-newreq-nodes' command option to CA.pl. This is like
1166 '-newreq', but calls 'openssl req' with the '-nodes' option
1167 so that the resulting key is not encrypted.
1168 [Damien Miller <djm@mindrot.org>]
1170 *) New configuration for the GNU Hurd.
1171 [Jonathan Bartlett <johnnyb@wolfram.com> via Richard Levitte]
1173 *) Initial code to implement OCSP basic response verify. This
1174 is currently incomplete. Currently just finds the signer's
1175 certificate and verifies the signature on the response.
1178 *) New SSLeay_version code SSLEAY_DIR to determine the compiled-in
1179 value of OPENSSLDIR. This is available via the new '-d' option
1180 to 'openssl version', and is also included in 'openssl version -a'.
1183 *) Allowing defining memory allocation callbacks that will be given
1184 file name and line number information in additional arguments
1185 (a const char* and an int). The basic functionality remains, as
1186 well as the original possibility to just replace malloc(),
1187 realloc() and free() by functions that do not know about these
1188 additional arguments. To register and find out the current
1189 settings for extended allocation functions, the following
1190 functions are provided:
1192 CRYPTO_set_mem_ex_functions
1193 CRYPTO_set_locked_mem_ex_functions
1194 CRYPTO_get_mem_ex_functions
1195 CRYPTO_get_locked_mem_ex_functions
1197 These work the same way as CRYPTO_set_mem_functions and friends.
1198 CRYPTO_get_[locked_]mem_functions now writes 0 where such an
1199 extended allocation function is enabled.
1200 Similarly, CRYPTO_get_[locked_]mem_ex_functions writes 0 where
1201 a conventional allocation function is enabled.
1202 [Richard Levitte, Bodo Moeller]
1204 *) Finish off removing the remaining LHASH function pointer casts.
1205 There should no longer be any prototype-casting required when using
1206 the LHASH abstraction, and any casts that remain are "bugs". See
1207 the callback types and macros at the head of lhash.h for details
1208 (and "OBJ_cleanup" in crypto/objects/obj_dat.c as an example).
1211 *) Add automatic query of EGD sockets in RAND_poll() for the unix variant.
1212 If /dev/[u]random devices are not available or do not return enough
1213 entropy, EGD style sockets (served by EGD or PRNGD) will automatically
1215 The locations /var/run/egd-pool, /dev/egd-pool, /etc/egd-pool, and
1216 /etc/entropy will be queried once each in this sequence, quering stops
1217 when enough entropy was collected without querying more sockets.
1220 *) Change the Unix RAND_poll() variant to be able to poll several
1221 random devices, as specified by DEVRANDOM, until a sufficient amount
1222 of data has been collected. We spend at most 10 ms on each file
1223 (select timeout) and read in non-blocking mode. DEVRANDOM now
1224 defaults to the list "/dev/urandom", "/dev/random", "/dev/srandom"
1225 (previously it was just the string "/dev/urandom"), so on typical
1226 platforms the 10 ms delay will never occur.
1227 Also separate out the Unix variant to its own file, rand_unix.c.
1228 For VMS, there's a currently-empty rand_vms.c.
1231 *) Move OCSP client related routines to ocsp_cl.c. These
1232 provide utility functions which an application needing
1233 to issue a request to an OCSP responder and analyse the
1234 response will typically need: as opposed to those which an
1235 OCSP responder itself would need which will be added later.
1237 OCSP_request_sign() signs an OCSP request with an API similar
1238 to PKCS7_sign(). OCSP_response_status() returns status of OCSP
1239 response. OCSP_response_get1_basic() extracts basic response
1240 from response. OCSP_resp_find_status(): finds and extracts status
1241 information from an OCSP_CERTID structure (which will be created
1242 when the request structure is built). These are built from lower
1243 level functions which work on OCSP_SINGLERESP structures but
1244 wont normally be used unless the application wishes to examine
1245 extensions in the OCSP response for example.
1247 Replace nonce routines with a pair of functions.
1248 OCSP_request_add1_nonce() adds a nonce value and optionally
1249 generates a random value. OCSP_check_nonce() checks the
1250 validity of the nonce in an OCSP response.
1253 *) Change function OCSP_request_add() to OCSP_request_add0_id().
1254 This doesn't copy the supplied OCSP_CERTID and avoids the
1255 need to free up the newly created id. Change return type
1256 to OCSP_ONEREQ to return the internal OCSP_ONEREQ structure.
1257 This can then be used to add extensions to the request.
1258 Deleted OCSP_request_new(), since most of its functionality
1259 is now in OCSP_REQUEST_new() (and the case insensitive name
1260 clash) apart from the ability to set the request name which
1261 will be added elsewhere.
1264 *) Update OCSP API. Remove obsolete extensions argument from
1265 various functions. Extensions are now handled using the new
1266 OCSP extension code. New simple OCSP HTTP function which
1267 can be used to send requests and parse the response.
1270 *) Fix the PKCS#7 (S/MIME) code to work with new ASN1. Two new
1271 ASN1_ITEM structures help with sign and verify. PKCS7_ATTR_SIGN
1272 uses the special reorder version of SET OF to sort the attributes
1273 and reorder them to match the encoded order. This resolves a long
1274 standing problem: a verify on a PKCS7 structure just after signing
1275 it used to fail because the attribute order did not match the
1276 encoded order. PKCS7_ATTR_VERIFY does not reorder the attributes:
1277 it uses the received order. This is necessary to tolerate some broken
1278 software that does not order SET OF. This is handled by encoding
1279 as a SEQUENCE OF but using implicit tagging (with UNIVERSAL class)
1280 to produce the required SET OF.
1283 *) Have mk1mf.pl generate the macros OPENSSL_BUILD_SHLIBCRYPTO and
1284 OPENSSL_BUILD_SHLIBSSL and use them appropriately in the header
1285 files to get correct declarations of the ASN.1 item variables.
1288 *) Rewrite of PKCS#12 code to use new ASN1 functionality. Replace many
1289 PKCS#12 macros with real functions. Fix two unrelated ASN1 bugs:
1290 asn1_check_tlen() would sometimes attempt to use 'ctx' when it was
1291 NULL and ASN1_TYPE was not dereferenced properly in asn1_ex_c2i().
1292 New ASN1 macro: DECLARE_ASN1_ITEM() which just declares the relevant
1293 ASN1_ITEM and no wrapper functions.
1296 *) New functions or ASN1_item_d2i_fp() and ASN1_item_d2i_bio(). These
1297 replace the old function pointer based I/O routines. Change most of
1298 the *_d2i_bio() and *_d2i_fp() functions to use these.
1301 *) Enhance mkdef.pl to be more accepting about spacing in C preprocessor
1302 lines, recognice more "algorithms" that can be deselected, and make
1303 it complain about algorithm deselection that isn't recognised.
1306 *) New ASN1 functions to handle dup, sign, verify, digest, pack and
1307 unpack operations in terms of ASN1_ITEM. Modify existing wrappers
1308 to use new functions. Add NO_ASN1_OLD which can be set to remove
1309 some old style ASN1 functions: this can be used to determine if old
1310 code will still work when these eventually go away.
1313 *) New extension functions for OCSP structures, these follow the
1314 same conventions as certificates and CRLs.
1317 *) New function X509V3_add1_i2d(). This automatically encodes and
1318 adds an extension. Its behaviour can be customised with various
1319 flags to append, replace or delete. Various wrappers added for
1320 certifcates and CRLs.
1323 *) Fix to avoid calling the underlying ASN1 print routine when
1324 an extension cannot be parsed. Correct a typo in the
1325 OCSP_SERVICELOC extension. Tidy up print OCSP format.
1328 *) Make mkdef.pl parse some of the ASN1 macros and add apropriate
1329 entries for variables.
1332 *) Add functionality to apps/openssl.c for detecting locking
1333 problems: As the program is single-threaded, all we have
1334 to do is register a locking callback using an array for
1335 storing which locks are currently held by the program.
1338 *) Use a lock around the call to CRYPTO_get_ex_new_index() in
1339 SSL_get_ex_data_X509_STORE_idx(), which is used in
1340 ssl_verify_cert_chain() and thus can be called at any time
1341 during TLS/SSL handshakes so that thread-safety is essential.
1342 Unfortunately, the ex_data design is not at all suited
1343 for multi-threaded use, so it probably should be abolished.
1346 *) Added Broadcom "ubsec" ENGINE to OpenSSL.
1347 [Broadcom, tweaked and integrated by Geoff Thorpe]
1349 *) Move common extension printing code to new function
1350 X509V3_print_extensions(). Reorganise OCSP print routines and
1351 implement some needed OCSP ASN1 functions. Add OCSP extensions.
1354 *) New function X509_signature_print() to remove duplication in some
1358 *) Add a special meaning when SET OF and SEQUENCE OF flags are both
1359 set (this was treated exactly the same as SET OF previously). This
1360 is used to reorder the STACK representing the structure to match the
1361 encoding. This will be used to get round a problem where a PKCS7
1362 structure which was signed could not be verified because the STACK
1363 order did not reflect the encoded order.
1366 *) Reimplement the OCSP ASN1 module using the new code.
1369 *) Update the X509V3 code to permit the use of an ASN1_ITEM structure
1370 for its ASN1 operations. The old style function pointers still exist
1371 for now but they will eventually go away.
1374 *) Merge in replacement ASN1 code from the ASN1 branch. This almost
1375 completely replaces the old ASN1 functionality with a table driven
1376 encoder and decoder which interprets an ASN1_ITEM structure describing
1377 the ASN1 module. Compatibility with the existing ASN1 API (i2d,d2i) is
1378 largely maintained. Almost all of the old asn1_mac.h macro based ASN1
1379 has also been converted to the new form.
1382 *) Change BN_mod_exp_recp so that negative moduli are tolerated
1383 (the sign is ignored). Similarly, ignore the sign in BN_MONT_CTX_set
1384 so that BN_mod_exp_mont and BN_mod_exp_mont_word work
1385 for negative moduli.
1388 *) Fix BN_uadd and BN_usub: Always return non-negative results instead
1389 of not touching the result's sign bit.
1392 *) BN_div bugfix: If the result is 0, the sign (res->neg) must not be
1396 *) Changed the LHASH code to use prototypes for callbacks, and created
1397 macros to declare and implement thin (optionally static) functions
1398 that provide type-safety and avoid function pointer casting for the
1399 type-specific callbacks.
1402 *) Added Kerberos Cipher Suites to be used with TLS, as written in
1404 [Veers Staats <staatsvr@asc.hpc.mil>,
1405 Jeffrey Altman <jaltman@columbia.edu>, via Richard Levitte]
1407 *) Reformat the FAQ so the different questions and answers can be divided
1408 in sections depending on the subject.
1411 *) Have the zlib compression code load ZLIB.DLL dynamically under
1415 *) New function BN_mod_sqrt for computing square roots modulo a prime
1416 (using the probabilistic Tonelli-Shanks algorithm unless
1417 p == 3 (mod 4) or p == 5 (mod 8), which are cases that can
1418 be handled deterministically).
1419 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
1421 *) Make BN_mod_inverse faster by explicitly handling small quotients
1422 in the Euclid loop. (Speed gain about 20% for small moduli [256 or
1423 512 bits], about 30% for larger ones [1024 or 2048 bits].)
1426 *) New function BN_kronecker.
1429 *) Fix BN_gcd so that it works on negative inputs; the result is
1430 positive unless both parameters are zero.
1431 Previously something reasonably close to an infinite loop was
1432 possible because numbers could be growing instead of shrinking
1433 in the implementation of Euclid's algorithm.
1436 *) Fix BN_is_word() and BN_is_one() macros to take into account the
1437 sign of the number in question.
1439 Fix BN_is_word(a,w) to work correctly for w == 0.
1441 The old BN_is_word(a,w) macro is now called BN_abs_is_word(a,w)
1442 because its test if the absolute value of 'a' equals 'w'.
1443 Note that BN_abs_is_word does *not* handle w == 0 reliably;
1444 it exists mostly for use in the implementations of BN_is_zero(),
1445 BN_is_one(), and BN_is_word().
1448 *) New function BN_swap.
1451 *) Use BN_nnmod instead of BN_mod in crypto/bn/bn_exp.c so that
1452 the exponentiation functions are more likely to produce reasonable
1453 results on negative inputs.
1456 *) Change BN_mod_mul so that the result is always non-negative.
1457 Previously, it could be negative if one of the factors was negative;
1458 I don't think anyone really wanted that behaviour.
1461 *) Move BN_mod_... functions into new file crypto/bn/bn_mod.c
1462 (except for exponentiation, which stays in crypto/bn/bn_exp.c,
1463 and BN_mod_mul_reciprocal, which stays in crypto/bn/bn_recp.c)
1464 and add new functions:
1473 BN_mod_lshift1_quick
1477 These functions always generate non-negative results.
1479 BN_nnmod otherwise is like BN_mod (if BN_mod computes a remainder r
1480 such that |m| < r < 0, BN_nnmod will output rem + |m| instead).
1482 BN_mod_XXX_quick(r, a, [b,] m) generates the same result as
1483 BN_mod_XXX(r, a, [b,] m, ctx), but requires that a [and b]
1484 be reduced modulo m.
1485 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
1487 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
1488 was actually never needed) and in BN_mul(). The removal in BN_mul()
1489 required a small change in bn_mul_part_recursive() and the addition
1490 of the functions bn_cmp_part_words(), bn_sub_part_words() and
1491 bn_add_part_words(), which do the same thing as bn_cmp_words(),
1492 bn_sub_words() and bn_add_words() except they take arrays with
1496 *) In 'openssl passwd', verify passwords read from the terminal
1497 unless the '-salt' option is used (which usually means that
1498 verification would just waste user's time since the resulting
1499 hash is going to be compared with some given password hash)
1500 or the new '-noverify' option is used.
1502 This is an incompatible change, but it does not affect
1503 non-interactive use of 'openssl passwd' (passwords on the command
1504 line, '-stdin' option, '-in ...' option) and thus should not
1508 *) Remove all references to RSAref, since there's no more need for it.
1511 *) Make DSO load along a path given through an environment variable
1512 (SHLIB_PATH) with shl_load().
1515 *) Constify the ENGINE code as a result of BIGNUM constification.
1516 Also constify the RSA code and most things related to it. In a
1517 few places, most notable in the depth of the ASN.1 code, ugly
1518 casts back to non-const were required (to be solved at a later
1522 *) Make it so the openssl application has all engines loaded by default.
1525 *) Constify the BIGNUM routines a little more.
1528 *) Add the following functions:
1530 ENGINE_load_cswift()
1532 ENGINE_load_atalla()
1534 ENGINE_load_builtin_engines()
1536 That way, an application can itself choose if external engines that
1537 are built-in in OpenSSL shall ever be used or not. The benefit is
1538 that applications won't have to be linked with libdl or other dso
1539 libraries unless it's really needed.
1541 Changed 'openssl engine' to load all engines on demand.
1542 Changed the engine header files to avoid the duplication of some
1543 declarations (they differed!).
1546 *) 'openssl engine' can now list capabilities.
1549 *) Better error reporting in 'openssl engine'.
1552 *) Never call load_dh_param(NULL) in s_server.
1555 *) Add engine application. It can currently list engines by name and
1556 identity, and test if they are actually available.
1559 *) Improve RPM specification file by forcing symbolic linking and making
1560 sure the installed documentation is also owned by root.root.
1561 [Damien Miller <djm@mindrot.org>]
1563 *) Give the OpenSSL applications more possibilities to make use of
1564 keys (public as well as private) handled by engines.
1567 *) Add OCSP code that comes from CertCo.
1570 *) Add VMS support for the Rijndael code.
1573 *) Added untested support for Nuron crypto accelerator.
1576 *) Add support for external cryptographic devices. This code was
1577 previously distributed separately as the "engine" branch.
1578 [Geoff Thorpe, Richard Levitte]
1580 *) Rework the filename-translation in the DSO code. It is now possible to
1581 have far greater control over how a "name" is turned into a filename
1582 depending on the operating environment and any oddities about the
1583 different shared library filenames on each system.
1586 *) Support threads on FreeBSD-elf in Configure.
1589 *) Fix for SHA1 assembly problem with MASM: it produces
1590 warnings about corrupt line number information when assembling
1591 with debugging information. This is caused by the overlapping
1593 [Bernd Matthes <mainbug@celocom.de>, Steve Henson]
1596 NCONF_get_number() has no error checking at all. As a replacement,
1597 NCONF_get_number_e() is defined (_e for "error checking") and is
1598 promoted strongly. The old NCONF_get_number is kept around for
1599 binary backward compatibility.
1600 Make it possible for methods to load from something other than a BIO,
1601 by providing a function pointer that is given a name instead of a BIO.
1602 For example, this could be used to load configuration data from an
1606 *) Fix for non blocking accept BIOs. Added new I/O special reason
1607 BIO_RR_ACCEPT to cover this case. Previously use of accept BIOs
1608 with non blocking I/O was not possible because no retry code was
1609 implemented. Also added new SSL code SSL_WANT_ACCEPT to cover
1613 *) Added the beginnings of Rijndael support.
1616 *) Fix for bug in DirectoryString mask setting. Add support for
1617 X509_NAME_print_ex() in 'req' and X509_print_ex() function
1618 to allow certificate printing to more controllable, additional
1619 'certopt' option to 'x509' to allow new printing options to be
1623 *) Clean old EAY MD5 hack from e_os.h.
1626 Changes between 0.9.6c and 0.9.6d [XX xxx 2002]
1628 *) Fix BASE64 decode (EVP_DecodeUpdate) for data with CR/LF ended lines:
1629 an end-of-file condition would erronously be flagged, when the CRLF
1630 was just at the end of a processed block. The bug was discovered when
1631 processing data through a buffering memory BIO handing the data to a
1632 BASE64-decoding BIO. Bug fund and patch submitted by Pavel Tsekov
1633 <ptsekov@syntrex.com> and Nedelcho Stanev.
1636 *) Implement a countermeasure against a vulnerability recently found
1637 in CBC ciphersuites in SSL 3.0/TLS 1.0: Send an empty fragment
1638 before application data chunks to avoid the use of known IVs
1639 with data potentially chosen by the attacker.
1642 *) Fix length checks in ssl3_get_client_hello().
1645 *) TLS/SSL library bugfix: use s->s3->in_read_app_data differently
1646 to prevent ssl3_read_internal() from incorrectly assuming that
1647 ssl3_read_bytes() found application data while handshake
1648 processing was enabled when in fact s->s3->in_read_app_data was
1649 merely automatically cleared during the initial handshake.
1650 [Bodo Moeller; problem pointed out by Arne Ansper <arne@ats.cyber.ee>]
1652 *) Fix object definitions for Private and Enterprise: they were not
1653 recognized in their shortname (=lowercase) representation. Extend
1654 obj_dat.pl to issue an error when using undefined keywords instead
1655 of silently ignoring the problem (Svenning Sorensen
1656 <sss@sss.dnsalias.net>).
1659 *) Fix DH_generate_parameters() so that it works for 'non-standard'
1660 generators, i.e. generators other than 2 and 5. (Previously, the
1661 code did not properly initialise the 'add' and 'rem' values to
1662 BN_generate_prime().)
1664 In the new general case, we do not insist that 'generator' is
1665 actually a primitive root: This requirement is rather pointless;
1666 a generator of the order-q subgroup is just as good, if not
1670 *) Map new X509 verification errors to alerts. Discovered and submitted by
1671 Tom Wu <tom@arcot.com>.
1674 *) Fix ssl3_pending() (ssl/s3_lib.c) to prevent SSL_pending() from
1675 returning non-zero before the data has been completely received
1676 when using non-blocking I/O.
1677 [Bodo Moeller; problem pointed out by John Hughes]
1679 *) Some of the ciphers missed the strength entry (SSL_LOW etc).
1680 [Ben Laurie, Lutz Jaenicke]
1682 *) Fix bug in SSL_clear(): bad sessions were not removed (found by
1683 Yoram Zahavi <YoramZ@gilian.com>).
1686 *) Add information about CygWin 1.3 and on, and preserve proper
1687 configuration for the versions before that.
1688 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
1690 *) Make removal from session cache (SSL_CTX_remove_session()) more robust:
1691 check whether we deal with a copy of a session and do not delete from
1692 the cache in this case. Problem reported by "Izhar Shoshani Levi"
1693 <izhar@checkpoint.com>.
1696 *) Do not store session data into the internal session cache, if it
1697 is never intended to be looked up (SSL_SESS_CACHE_NO_INTERNAL_LOOKUP
1698 flag is set). Proposed by Aslam <aslam@funk.com>.
1701 *) Have ASN1_BIT_STRING_set_bit() really clear a bit when the requested
1705 *) Add the configuration target linux-s390x.
1706 [Neale Ferguson <Neale.Ferguson@SoftwareAG-USA.com> via Richard Levitte]
1708 *) [In 0.9.6d-engine release:]
1709 Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
1710 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
1712 *) The earlier bugfix for the SSL3_ST_SW_HELLO_REQ_C case of
1713 ssl3_accept (ssl/s3_srvr.c) incorrectly used a local flag
1714 variable as an indication that a ClientHello message has been
1715 received. As the flag value will be lost between multiple
1716 invocations of ssl3_accept when using non-blocking I/O, the
1717 function may not be aware that a handshake has actually taken
1718 place, thus preventing a new session from being added to the
1721 To avoid this problem, we now set s->new_session to 2 instead of
1722 using a local variable.
1723 [Lutz Jaenicke, Bodo Moeller]
1725 *) Bugfix: Return -1 from ssl3_get_server_done (ssl3/s3_clnt.c)
1726 if the SSL_R_LENGTH_MISMATCH error is detected.
1727 [Geoff Thorpe, Bodo Moeller]
1729 *) New 'shared_ldflag' column in Configure platform table.
1732 *) Fix EVP_CIPHER_mode macro.
1733 ["Dan S. Camper" <dan@bti.net>]
1735 *) Fix ssl3_read_bytes (ssl/s3_pkt.c): To ignore messages of unknown
1736 type, we must throw them away by setting rr->length to 0.
1737 [D P Chang <dpc@qualys.com>]
1739 Changes between 0.9.6b and 0.9.6c [21 dec 2001]
1741 *) Fix BN_rand_range bug pointed out by Dominikus Scherkl
1742 <Dominikus.Scherkl@biodata.com>. (The previous implementation
1743 worked incorrectly for those cases where range = 10..._2 and
1744 3*range is two bits longer than range.)
1747 *) Only add signing time to PKCS7 structures if it is not already
1751 *) Fix crypto/objects/objects.h: "ld-ce" should be "id-ce",
1752 OBJ_ld_ce should be OBJ_id_ce.
1753 Also some ip-pda OIDs in crypto/objects/objects.txt were
1754 incorrect (cf. RFC 3039).
1755 [Matt Cooper, Frederic Giudicelli, Bodo Moeller]
1757 *) Release CRYPTO_LOCK_DYNLOCK when CRYPTO_destroy_dynlockid()
1758 returns early because it has nothing to do.
1759 [Andy Schneider <andy.schneider@bjss.co.uk>]
1761 *) [In 0.9.6c-engine release:]
1762 Fix mutex callback return values in crypto/engine/hw_ncipher.c.
1763 [Andy Schneider <andy.schneider@bjss.co.uk>]
1765 *) [In 0.9.6c-engine release:]
1766 Add support for Cryptographic Appliance's keyserver technology.
1767 (Use engine 'keyclient')
1768 [Cryptographic Appliances and Geoff Thorpe]
1770 *) Add a configuration entry for OS/390 Unix. The C compiler 'c89'
1771 is called via tools/c89.sh because arguments have to be
1772 rearranged (all '-L' options must appear before the first object
1774 [Richard Shapiro <rshapiro@abinitio.com>]
1776 *) [In 0.9.6c-engine release:]
1777 Add support for Broadcom crypto accelerator cards, backported
1779 [Broadcom, Nalin Dahyabhai <nalin@redhat.com>, Mark Cox]
1781 *) [In 0.9.6c-engine release:]
1782 Add support for SureWare crypto accelerator cards from
1783 Baltimore Technologies. (Use engine 'sureware')
1784 [Baltimore Technologies and Mark Cox]
1786 *) [In 0.9.6c-engine release:]
1787 Add support for crypto accelerator cards from Accelerated
1788 Encryption Processing, www.aep.ie. (Use engine 'aep')
1789 [AEP Inc. and Mark Cox]
1791 *) Add a configuration entry for gcc on UnixWare.
1792 [Gary Benson <gbenson@redhat.com>]
1794 *) Change ssl/s2_clnt.c and ssl/s2_srvr.c so that received handshake
1795 messages are stored in a single piece (fixed-length part and
1796 variable-length part combined) and fix various bugs found on the way.
1799 *) Disable caching in BIO_gethostbyname(), directly use gethostbyname()
1800 instead. BIO_gethostbyname() does not know what timeouts are
1801 appropriate, so entries would stay in cache even when they have
1803 [Bodo Moeller; problem pointed out by Rich Salz <rsalz@zolera.com>
1805 *) Change ssl23_get_client_hello (ssl/s23_srvr.c) behaviour when
1806 faced with a pathologically small ClientHello fragment that does
1807 not contain client_version: Instead of aborting with an error,
1808 simply choose the highest available protocol version (i.e.,
1809 TLS 1.0 unless it is disabled). In practice, ClientHello
1810 messages are never sent like this, but this change gives us
1811 strictly correct behaviour at least for TLS.
1814 *) Fix SSL handshake functions and SSL_clear() such that SSL_clear()
1815 never resets s->method to s->ctx->method when called from within
1816 one of the SSL handshake functions.
1817 [Bodo Moeller; problem pointed out by Niko Baric]
1819 *) In ssl3_get_client_hello (ssl/s3_srvr.c), generate a fatal alert
1820 (sent using the client's version number) if client_version is
1821 smaller than the protocol version in use. Also change
1822 ssl23_get_client_hello (ssl/s23_srvr.c) to select TLS 1.0 if
1823 the client demanded SSL 3.0 but only TLS 1.0 is enabled; then
1824 the client will at least see that alert.
1827 *) Fix ssl3_get_message (ssl/s3_both.c) to handle message fragmentation
1831 *) Avoid infinite loop in ssl3_get_message (ssl/s3_both.c) if a
1832 client receives HelloRequest while in a handshake.
1833 [Bodo Moeller; bug noticed by Andy Schneider <andy.schneider@bjss.co.uk>]
1835 *) Bugfix in ssl3_accept (ssl/s3_srvr.c): Case SSL3_ST_SW_HELLO_REQ_C
1836 should end in 'break', not 'goto end' which circuments various
1837 cleanups done in state SSL_ST_OK. But session related stuff
1838 must be disabled for SSL_ST_OK in the case that we just sent a
1841 Also avoid some overhead by not calling ssl_init_wbio_buffer()
1842 before just sending a HelloRequest.
1843 [Bodo Moeller, Eric Rescorla <ekr@rtfm.com>]
1845 *) Fix ssl/s3_enc.c, ssl/t1_enc.c and ssl/s3_pkt.c so that we don't
1846 reveal whether illegal block cipher padding was found or a MAC
1847 verification error occured. (Neither SSLerr() codes nor alerts
1848 are directly visible to potential attackers, but the information
1849 may leak via logfiles.)
1851 Similar changes are not required for the SSL 2.0 implementation
1852 because the number of padding bytes is sent in clear for SSL 2.0,
1853 and the extra bytes are just ignored. However ssl/s2_pkt.c
1854 failed to verify that the purported number of padding bytes is in
1858 *) Add OpenUNIX-8 support including shared libraries
1859 (Boyd Lynn Gerber <gerberb@zenez.com>).
1862 *) Improve RSA_padding_check_PKCS1_OAEP() check again to avoid
1863 'wristwatch attack' using huge encoding parameters (cf.
1864 James H. Manger's CRYPTO 2001 paper). Note that the
1865 RSA_PKCS1_OAEP_PADDING case of RSA_private_decrypt() does not use
1866 encoding parameters and hence was not vulnerable.
1869 *) BN_sqr() bug fix.
1870 [Ulf Möller, reported by Jim Ellis <jim.ellis@cavium.com>]
1872 *) Rabin-Miller test analyses assume uniformly distributed witnesses,
1873 so use BN_pseudo_rand_range() instead of using BN_pseudo_rand()
1874 followed by modular reduction.
1875 [Bodo Moeller; pointed out by Adam Young <AYoung1@NCSUS.JNJ.COM>]
1877 *) Add BN_pseudo_rand_range() with obvious functionality: BN_rand_range()
1878 equivalent based on BN_pseudo_rand() instead of BN_rand().
1881 *) s3_srvr.c: allow sending of large client certificate lists (> 16 kB).
1882 This function was broken, as the check for a new client hello message
1883 to handle SGC did not allow these large messages.
1884 (Tracked down by "Douglas E. Engert" <deengert@anl.gov>.)
1887 *) Add alert descriptions for TLSv1 to SSL_alert_desc_string[_long]().
1890 *) Fix buggy behaviour of BIO_get_num_renegotiates() and BIO_ctrl()
1891 for BIO_C_GET_WRITE_BUF_SIZE ("Stephen Hinton" <shinton@netopia.com>).
1894 *) Rework the configuration and shared library support for Tru64 Unix.
1895 The configuration part makes use of modern compiler features and
1896 still retains old compiler behavior for those that run older versions
1897 of the OS. The shared library support part includes a variant that
1898 uses the RPATH feature, and is available through the special
1899 configuration target "alpha-cc-rpath", which will never be selected
1901 [Tim Mooney <mooney@dogbert.cc.ndsu.NoDak.edu> via Richard Levitte]
1903 *) In ssl3_get_key_exchange (ssl/s3_clnt.c), call ssl3_get_message()
1904 with the same message size as in ssl3_get_certificate_request().
1905 Otherwise, if no ServerKeyExchange message occurs, CertificateRequest
1906 messages might inadvertently be reject as too long.
1907 [Petr Lampa <lampa@fee.vutbr.cz>]
1909 *) Enhanced support for IA-64 Unix platforms (well, Linux and HP-UX).
1912 *) Modified SSL library such that the verify_callback that has been set
1913 specificly for an SSL object with SSL_set_verify() is actually being
1914 used. Before the change, a verify_callback set with this function was
1915 ignored and the verify_callback() set in the SSL_CTX at the time of
1916 the call was used. New function X509_STORE_CTX_set_verify_cb() introduced
1917 to allow the necessary settings.
1920 *) Initialize static variable in crypto/dsa/dsa_lib.c and crypto/dh/dh_lib.c
1921 explicitly to NULL, as at least on Solaris 8 this seems not always to be
1922 done automatically (in contradiction to the requirements of the C
1923 standard). This made problems when used from OpenSSH.
1926 *) In OpenSSL 0.9.6a and 0.9.6b, crypto/dh/dh_key.c ignored
1927 dh->length and always used
1929 BN_rand_range(priv_key, dh->p).
1931 BN_rand_range() is not necessary for Diffie-Hellman, and this
1932 specific range makes Diffie-Hellman unnecessarily inefficient if
1933 dh->length (recommended exponent length) is much smaller than the
1934 length of dh->p. We could use BN_rand_range() if the order of
1935 the subgroup was stored in the DH structure, but we only have
1940 BN_rand(priv_key, l, ...)
1942 where 'l' is dh->length if this is defined, or BN_num_bits(dh->p)-1
1948 RSA_eay_public_encrypt
1949 RSA_eay_private_decrypt
1950 RSA_eay_private_encrypt (signing)
1951 RSA_eay_public_decrypt (signature verification)
1953 (default implementations for RSA_public_encrypt,
1954 RSA_private_decrypt, RSA_private_encrypt, RSA_public_decrypt),
1955 always reject numbers >= n.
1958 *) In crypto/rand/md_rand.c, use a new short-time lock CRYPTO_LOCK_RAND2
1959 to synchronize access to 'locking_thread'. This is necessary on
1960 systems where access to 'locking_thread' (an 'unsigned long'
1961 variable) is not atomic.
1964 *) In crypto/rand/md_rand.c, set 'locking_thread' to current thread's ID
1965 *before* setting the 'crypto_lock_rand' flag. The previous code had
1966 a race condition if 0 is a valid thread ID.
1967 [Travis Vitek <vitek@roguewave.com>]
1969 *) Add support for shared libraries under Irix.
1970 [Albert Chin-A-Young <china@thewrittenword.com>]
1972 *) Add configuration option to build on Linux on both big-endian and
1974 [Ralf Baechle <ralf@uni-koblenz.de>]
1976 *) Add the possibility to create shared libraries on HP-UX.
1979 Changes between 0.9.6a and 0.9.6b [9 Jul 2001]
1981 *) Change ssleay_rand_bytes (crypto/rand/md_rand.c)
1982 to avoid a SSLeay/OpenSSL PRNG weakness pointed out by
1983 Markku-Juhani O. Saarinen <markku-juhani.saarinen@nokia.com>:
1984 PRNG state recovery was possible based on the output of
1985 one PRNG request appropriately sized to gain knowledge on
1986 'md' followed by enough consecutive 1-byte PRNG requests
1987 to traverse all of 'state'.
1989 1. When updating 'md_local' (the current thread's copy of 'md')
1990 during PRNG output generation, hash all of the previous
1991 'md_local' value, not just the half used for PRNG output.
1993 2. Make the number of bytes from 'state' included into the hash
1994 independent from the number of PRNG bytes requested.
1996 The first measure alone would be sufficient to avoid
1997 Markku-Juhani's attack. (Actually it had never occurred
1998 to me that the half of 'md_local' used for chaining was the
1999 half from which PRNG output bytes were taken -- I had always
2000 assumed that the secret half would be used.) The second
2001 measure makes sure that additional data from 'state' is never
2002 mixed into 'md_local' in small portions; this heuristically
2003 further strengthens the PRNG.
2006 *) Fix crypto/bn/asm/mips3.s.
2009 *) When only the key is given to "enc", the IV is undefined. Print out
2010 an error message in this case.
2013 *) Handle special case when X509_NAME is empty in X509 printing routines.
2016 *) In dsa_do_verify (crypto/dsa/dsa_ossl.c), verify that r and s are
2017 positive and less than q.
2020 *) Don't change *pointer in CRYPTO_add_lock() is add_lock_callback is
2021 used: it isn't thread safe and the add_lock_callback should handle
2023 [Paul Rose <Paul.Rose@bridge.com>]
2025 *) Verify that incoming data obeys the block size in
2026 ssl3_enc (ssl/s3_enc.c) and tls1_enc (ssl/t1_enc.c).
2030 [Ulf Möller, Bodo Möller]
2032 *) The countermeasure against Bleichbacher's attack on PKCS #1 v1.5
2033 RSA encryption was accidentally removed in s3_srvr.c in OpenSSL 0.9.5
2034 when fixing the server behaviour for backwards-compatible 'client
2035 hello' messages. (Note that the attack is impractical against
2036 SSL 3.0 and TLS 1.0 anyway because length and version checking
2037 means that the probability of guessing a valid ciphertext is
2038 around 2^-40; see section 5 in Bleichenbacher's CRYPTO '98
2041 Before 0.9.5, the countermeasure (hide the error by generating a
2042 random 'decryption result') did not work properly because
2043 ERR_clear_error() was missing, meaning that SSL_get_error() would
2044 detect the supposedly ignored error.
2046 Both problems are now fixed.
2049 *) In crypto/bio/bf_buff.c, increase DEFAULT_BUFFER_SIZE to 4096
2050 (previously it was 1024).
2053 *) Fix for compatibility mode trust settings: ignore trust settings
2054 unless some valid trust or reject settings are present.
2057 *) Fix for blowfish EVP: its a variable length cipher.
2060 *) Fix various bugs related to DSA S/MIME verification. Handle missing
2061 parameters in DSA public key structures and return an error in the
2062 DSA routines if parameters are absent.
2065 *) In versions up to 0.9.6, RAND_file_name() resorted to file ".rnd"
2066 in the current directory if neither $RANDFILE nor $HOME was set.
2067 RAND_file_name() in 0.9.6a returned NULL in this case. This has
2068 caused some confusion to Windows users who haven't defined $HOME.
2069 Thus RAND_file_name() is changed again: e_os.h can define a
2070 DEFAULT_HOME, which will be used if $HOME is not set.
2071 For Windows, we use "C:"; on other platforms, we still require
2072 environment variables.
2074 *) Move 'if (!initialized) RAND_poll()' into regions protected by
2075 CRYPTO_LOCK_RAND. This is not strictly necessary, but avoids
2076 having multiple threads call RAND_poll() concurrently.
2079 *) In crypto/rand/md_rand.c, replace 'add_do_not_lock' flag by a
2080 combination of a flag and a thread ID variable.
2081 Otherwise while one thread is in ssleay_rand_bytes (which sets the
2082 flag), *other* threads can enter ssleay_add_bytes without obeying
2083 the CRYPTO_LOCK_RAND lock (and may even illegally release the lock
2084 that they do not hold after the first thread unsets add_do_not_lock).
2087 *) Change bctest again: '-x' expressions are not available in all
2091 Changes between 0.9.6 and 0.9.6a [5 Apr 2001]
2093 *) Fix a couple of memory leaks in PKCS7_dataDecode()
2094 [Steve Henson, reported by Heyun Zheng <hzheng@atdsprint.com>]
2096 *) Change Configure and Makefiles to provide EXE_EXT, which will contain
2097 the default extension for executables, if any. Also, make the perl
2098 scripts that use symlink() to test if it really exists and use "cp"
2099 if it doesn't. All this made OpenSSL compilable and installable in
2103 *) Fix for asn1_GetSequence() for indefinite length constructed data.
2104 If SEQUENCE is length is indefinite just set c->slen to the total
2105 amount of data available.
2106 [Steve Henson, reported by shige@FreeBSD.org]
2107 [This change does not apply to 0.9.7.]
2109 *) Change bctest to avoid here-documents inside command substitution
2110 (workaround for FreeBSD /bin/sh bug).
2111 For compatibility with Ultrix, avoid shell functions (introduced
2112 in the bctest version that searches along $PATH).
2115 *) Rename 'des_encrypt' to 'des_encrypt1'. This avoids the clashes
2116 with des_encrypt() defined on some operating systems, like Solaris
2120 *) Check the result of RSA-CRT (see D. Boneh, R. DeMillo, R. Lipton:
2121 On the Importance of Eliminating Errors in Cryptographic
2122 Computations, J. Cryptology 14 (2001) 2, 101-119,
2123 http://theory.stanford.edu/~dabo/papers/faults.ps.gz).
2126 *) MIPS assembler BIGNUM division bug fix.
2129 *) Disabled incorrect Alpha assembler code.
2132 *) Fix PKCS#7 decode routines so they correctly update the length
2133 after reading an EOC for the EXPLICIT tag.
2135 [This change does not apply to 0.9.7.]
2137 *) Fix bug in PKCS#12 key generation routines. This was triggered
2138 if a 3DES key was generated with a 0 initial byte. Include
2139 PKCS12_BROKEN_KEYGEN compilation option to retain the old
2140 (but broken) behaviour.
2143 *) Enhance bctest to search for a working bc along $PATH and print
2145 [Tim Rice <tim@multitalents.net> via Richard Levitte]
2147 *) Fix memory leaks in err.c: free err_data string if necessary;
2148 don't write to the wrong index in ERR_set_error_data.
2151 *) Implement ssl23_peek (analogous to ssl23_read), which previously
2155 *) Replace rdtsc with _emit statements for VC++ version 5.
2156 [Jeremy Cooper <jeremy@baymoo.org>]
2158 *) Make it possible to reuse SSLv2 sessions.
2161 *) In copy_email() check for >= 0 as a return value for
2162 X509_NAME_get_index_by_NID() since 0 is a valid index.
2163 [Steve Henson reported by Massimiliano Pala <madwolf@opensca.org>]
2165 *) Avoid coredump with unsupported or invalid public keys by checking if
2166 X509_get_pubkey() fails in PKCS7_verify(). Fix memory leak when
2167 PKCS7_verify() fails with non detached data.
2170 *) Don't use getenv in library functions when run as setuid/setgid.
2171 New function OPENSSL_issetugid().
2174 *) Avoid false positives in memory leak detection code (crypto/mem_dbg.c)
2175 due to incorrect handling of multi-threading:
2177 1. Fix timing glitch in the MemCheck_off() portion of CRYPTO_mem_ctrl().
2179 2. Fix logical glitch in is_MemCheck_on() aka CRYPTO_is_mem_check_on().
2181 3. Count how many times MemCheck_off() has been called so that
2182 nested use can be treated correctly. This also avoids
2183 inband-signalling in the previous code (which relied on the
2184 assumption that thread ID 0 is impossible).
2187 *) Add "-rand" option also to s_client and s_server.
2190 *) Fix CPU detection on Irix 6.x.
2191 [Kurt Hockenbury <khockenb@stevens-tech.edu> and
2192 "Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
2194 *) Fix X509_NAME bug which produced incorrect encoding if X509_NAME
2197 [This change does not apply to 0.9.7.]
2199 *) Use the cached encoding of an X509_NAME structure rather than
2200 copying it. This is apparently the reason for the libsafe "errors"
2201 but the code is actually correct.
2204 *) Add new function BN_rand_range(), and fix DSA_sign_setup() to prevent
2205 Bleichenbacher's DSA attack.
2206 Extend BN_[pseudo_]rand: As before, top=1 forces the highest two bits
2207 to be set and top=0 forces the highest bit to be set; top=-1 is new
2208 and leaves the highest bit random.
2209 [Ulf Moeller, Bodo Moeller]
2211 *) In the NCONF_...-based implementations for CONF_... queries
2212 (crypto/conf/conf_lib.c), if the input LHASH is NULL, avoid using
2213 a temporary CONF structure with the data component set to NULL
2214 (which gives segmentation faults in lh_retrieve).
2215 Instead, use NULL for the CONF pointer in CONF_get_string and
2216 CONF_get_number (which may use environment variables) and directly
2217 return NULL from CONF_get_section.
2220 *) Fix potential buffer overrun for EBCDIC.
2223 *) Tolerate nonRepudiation as being valid for S/MIME signing and certSign
2224 keyUsage if basicConstraints absent for a CA.
2227 *) Make SMIME_write_PKCS7() write mail header values with a format that
2228 is more generally accepted (no spaces before the semicolon), since
2229 some programs can't parse those values properly otherwise. Also make
2230 sure BIO's that break lines after each write do not create invalid
2234 *) Make the CRL encoding routines work with empty SEQUENCE OF. The
2235 macros previously used would not encode an empty SEQUENCE OF
2236 and break the signature.
2238 [This change does not apply to 0.9.7.]
2240 *) Zero the premaster secret after deriving the master secret in
2244 *) Add some EVP_add_digest_alias registrations (as found in
2245 OpenSSL_add_all_digests()) to SSL_library_init()
2246 aka OpenSSL_add_ssl_algorithms(). This provides improved
2247 compatibility with peers using X.509 certificates
2248 with unconventional AlgorithmIdentifier OIDs.
2251 *) Fix for Irix with NO_ASM.
2252 ["Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
2254 *) ./config script fixes.
2255 [Ulf Moeller, Richard Levitte]
2257 *) Fix 'openssl passwd -1'.
2260 *) Change PKCS12_key_gen_asc() so it can cope with non null
2261 terminated strings whose length is passed in the passlen
2262 parameter, for example from PEM callbacks. This was done
2263 by adding an extra length parameter to asc2uni().
2264 [Steve Henson, reported by <oddissey@samsung.co.kr>]
2266 *) Fix C code generated by 'openssl dsaparam -C': If a BN_bin2bn
2267 call failed, free the DSA structure.
2270 *) Fix to uni2asc() to cope with zero length Unicode strings.
2271 These are present in some PKCS#12 files.
2274 *) Increase s2->wbuf allocation by one byte in ssl2_new (ssl/s2_lib.c).
2275 Otherwise do_ssl_write (ssl/s2_pkt.c) will write beyond buffer limits
2276 when writing a 32767 byte record.
2277 [Bodo Moeller; problem reported by Eric Day <eday@concentric.net>]
2279 *) In RSA_eay_public_{en,ed}crypt and RSA_eay_mod_exp (rsa_eay.c),
2280 obtain lock CRYPTO_LOCK_RSA before setting rsa->_method_mod_{n,p,q}.
2282 (RSA objects have a reference count access to which is protected
2283 by CRYPTO_LOCK_RSA [see rsa_lib.c, s3_srvr.c, ssl_cert.c, ssl_rsa.c],
2284 so they are meant to be shared between threads.)
2285 [Bodo Moeller, Geoff Thorpe; original patch submitted by
2286 "Reddie, Steven" <Steven.Reddie@ca.com>]
2288 *) Fix a deadlock in CRYPTO_mem_leaks().
2291 *) Use better test patterns in bntest.
2294 *) rand_win.c fix for Borland C.
2297 *) BN_rshift bugfix for n == 0.
2300 *) Add a 'bctest' script that checks for some known 'bc' bugs
2301 so that 'make test' does not abort just because 'bc' is broken.
2304 *) Store verify_result within SSL_SESSION also for client side to
2305 avoid potential security hole. (Re-used sessions on the client side
2306 always resulted in verify_result==X509_V_OK, not using the original
2307 result of the server certificate verification.)
2310 *) Fix ssl3_pending: If the record in s->s3->rrec is not of type
2311 SSL3_RT_APPLICATION_DATA, return 0.
2312 Similarly, change ssl2_pending to return 0 if SSL_in_init(s) is true.
2316 Both ssl2_peek and ssl3_peek, which were totally broken in earlier
2317 releases, have been re-implemented by renaming the previous
2318 implementations of ssl2_read and ssl3_read to ssl2_read_internal
2319 and ssl3_read_internal, respectively, and adding 'peek' parameters
2320 to them. The new ssl[23]_{read,peek} functions are calls to
2321 ssl[23]_read_internal with the 'peek' flag set appropriately.
2322 A 'peek' parameter has also been added to ssl3_read_bytes, which
2323 does the actual work for ssl3_read_internal.
2326 *) Initialise "ex_data" member of RSA/DSA/DH structures prior to calling
2327 the method-specific "init()" handler. Also clean up ex_data after
2328 calling the method-specific "finish()" handler. Previously, this was
2329 happening the other way round.
2332 *) Increase BN_CTX_NUM (the number of BIGNUMs in a BN_CTX) to 16.
2333 The previous value, 12, was not always sufficient for BN_mod_exp().
2336 *) Make sure that shared libraries get the internal name engine with
2337 the full version number and not just 0. This should mark the
2338 shared libraries as not backward compatible. Of course, this should
2339 be changed again when we can guarantee backward binary compatibility.
2342 *) Fix typo in get_cert_by_subject() in by_dir.c
2343 [Jean-Marc Desperrier <jean-marc.desperrier@certplus.com>]
2345 *) Rework the system to generate shared libraries:
2347 - Make note of the expected extension for the shared libraries and
2348 if there is a need for symbolic links from for example libcrypto.so.0
2349 to libcrypto.so.0.9.7. There is extended info in Configure for
2352 - Make as few rebuilds of the shared libraries as possible.
2354 - Still avoid linking the OpenSSL programs with the shared libraries.
2356 - When installing, install the shared libraries separately from the
2360 *) Fix SSL_CTX_set_read_ahead macro to actually use its argument.
2362 Copy SSL_CTX's read_ahead flag to SSL object directly in SSL_new
2363 and not in SSL_clear because the latter is also used by the
2364 accept/connect functions; previously, the settings made by
2365 SSL_set_read_ahead would be lost during the handshake.
2366 [Bodo Moeller; problems reported by Anders Gertz <gertz@epact.se>]
2368 *) Correct util/mkdef.pl to be selective about disabled algorithms.
2369 Previously, it would create entries for disableed algorithms no
2373 *) Added several new manual pages for SSL_* function.
2376 Changes between 0.9.5a and 0.9.6 [24 Sep 2000]
2378 *) In ssl23_get_client_hello, generate an error message when faced
2379 with an initial SSL 3.0/TLS record that is too small to contain the
2380 first two bytes of the ClientHello message, i.e. client_version.
2381 (Note that this is a pathologic case that probably has never happened
2382 in real life.) The previous approach was to use the version number
2383 from the record header as a substitute; but our protocol choice
2384 should not depend on that one because it is not authenticated
2385 by the Finished messages.
2388 *) More robust randomness gathering functions for Windows.
2389 [Jeffrey Altman <jaltman@columbia.edu>]
2391 *) For compatibility reasons if the flag X509_V_FLAG_ISSUER_CHECK is
2392 not set then we don't setup the error code for issuer check errors
2393 to avoid possibly overwriting other errors which the callback does
2394 handle. If an application does set the flag then we assume it knows
2395 what it is doing and can handle the new informational codes
2399 *) Fix for a nasty bug in ASN1_TYPE handling. ASN1_TYPE is used for
2400 a general "ANY" type, as such it should be able to decode anything
2401 including tagged types. However it didn't check the class so it would
2402 wrongly interpret tagged types in the same way as their universal
2403 counterpart and unknown types were just rejected. Changed so that the
2404 tagged and unknown types are handled in the same way as a SEQUENCE:
2405 that is the encoding is stored intact. There is also a new type
2406 "V_ASN1_OTHER" which is used when the class is not universal, in this
2407 case we have no idea what the actual type is so we just lump them all
2411 *) On VMS, stdout may very well lead to a file that is written to
2412 in a record-oriented fashion. That means that every write() will
2413 write a separate record, which will be read separately by the
2414 programs trying to read from it. This can be very confusing.
2416 The solution is to put a BIO filter in the way that will buffer
2417 text until a linefeed is reached, and then write everything a
2418 line at a time, so every record written will be an actual line,
2419 not chunks of lines and not (usually doesn't happen, but I've
2420 seen it once) several lines in one record. BIO_f_linebuffer() is
2423 Currently, it's a VMS-only method, because that's where it has
2424 been tested well enough.
2427 *) Remove 'optimized' squaring variant in BN_mod_mul_montgomery,
2428 it can return incorrect results.
2429 (Note: The buggy variant was not enabled in OpenSSL 0.9.5a,
2430 but it was in 0.9.6-beta[12].)
2433 *) Disable the check for content being present when verifying detached
2434 signatures in pk7_smime.c. Some versions of Netscape (wrongly)
2435 include zero length content when signing messages.
2438 *) New BIO_shutdown_wr macro, which invokes the BIO_C_SHUTDOWN_WR
2439 BIO_ctrl (for BIO pairs).
2442 *) Add DSO method for VMS.
2445 *) Bug fix: Montgomery multiplication could produce results with the
2449 *) Add RPM specification openssl.spec and modify it to build three
2450 packages. The default package contains applications, application
2451 documentation and run-time libraries. The devel package contains
2452 include files, static libraries and function documentation. The
2453 doc package contains the contents of the doc directory. The original
2454 openssl.spec was provided by Damien Miller <djm@mindrot.org>.
2457 *) Add a large number of documentation files for many SSL routines.
2458 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
2460 *) Add a configuration entry for Sony News 4.
2461 [NAKAJI Hiroyuki <nakaji@tutrp.tut.ac.jp>]
2463 *) Don't set the two most significant bits to one when generating a
2464 random number < q in the DSA library.
2467 *) New SSL API mode 'SSL_MODE_AUTO_RETRY'. This disables the default
2468 behaviour that SSL_read may result in SSL_ERROR_WANT_READ (even if
2469 the underlying transport is blocking) if a handshake took place.
2470 (The default behaviour is needed by applications such as s_client
2471 and s_server that use select() to determine when to use SSL_read;
2472 but for applications that know in advance when to expect data, it
2473 just makes things more complicated.)
2476 *) Add RAND_egd_bytes(), which gives control over the number of bytes read
2480 *) Add a few more EBCDIC conditionals that make `req' and `x509'
2481 work better on such systems.
2482 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
2484 *) Add two demo programs for PKCS12_parse() and PKCS12_create().
2485 Update PKCS12_parse() so it copies the friendlyName and the
2486 keyid to the certificates aux info.
2489 *) Fix bug in PKCS7_verify() which caused an infinite loop
2490 if there was more than one signature.
2491 [Sven Uszpelkat <su@celocom.de>]
2493 *) Major change in util/mkdef.pl to include extra information
2494 about each symbol, as well as presentig variables as well
2495 as functions. This change means that there's n more need
2496 to rebuild the .num files when some algorithms are excluded.
2499 *) Allow the verify time to be set by an application,
2500 rather than always using the current time.
2503 *) Phase 2 verify code reorganisation. The certificate
2504 verify code now looks up an issuer certificate by a
2505 number of criteria: subject name, authority key id
2506 and key usage. It also verifies self signed certificates
2507 by the same criteria. The main comparison function is
2508 X509_check_issued() which performs these checks.
2510 Lot of changes were necessary in order to support this
2511 without completely rewriting the lookup code.
2513 Authority and subject key identifier are now cached.
2515 The LHASH 'certs' is X509_STORE has now been replaced
2516 by a STACK_OF(X509_OBJECT). This is mainly because an
2517 LHASH can't store or retrieve multiple objects with
2518 the same hash value.
2520 As a result various functions (which were all internal
2521 use only) have changed to handle the new X509_STORE
2522 structure. This will break anything that messed round
2523 with X509_STORE internally.
2525 The functions X509_STORE_add_cert() now checks for an
2526 exact match, rather than just subject name.
2528 The X509_STORE API doesn't directly support the retrieval
2529 of multiple certificates matching a given criteria, however
2530 this can be worked round by performing a lookup first
2531 (which will fill the cache with candidate certificates)
2532 and then examining the cache for matches. This is probably
2533 the best we can do without throwing out X509_LOOKUP
2534 entirely (maybe later...).
2536 The X509_VERIFY_CTX structure has been enhanced considerably.
2538 All certificate lookup operations now go via a get_issuer()
2539 callback. Although this currently uses an X509_STORE it
2540 can be replaced by custom lookups. This is a simple way
2541 to bypass the X509_STORE hackery necessary to make this
2542 work and makes it possible to use more efficient techniques
2543 in future. A very simple version which uses a simple
2544 STACK for its trusted certificate store is also provided
2545 using X509_STORE_CTX_trusted_stack().
2547 The verify_cb() and verify() callbacks now have equivalents
2548 in the X509_STORE_CTX structure.
2550 X509_STORE_CTX also has a 'flags' field which can be used
2551 to customise the verify behaviour.
2554 *) Add new PKCS#7 signing option PKCS7_NOSMIMECAP which
2555 excludes S/MIME capabilities.
2558 *) When a certificate request is read in keep a copy of the
2559 original encoding of the signed data and use it when outputing
2560 again. Signatures then use the original encoding rather than
2561 a decoded, encoded version which may cause problems if the
2562 request is improperly encoded.
2565 *) For consistency with other BIO_puts implementations, call
2566 buffer_write(b, ...) directly in buffer_puts instead of calling
2569 In BIO_puts, increment b->num_write as in BIO_write.
2570 [Peter.Sylvester@EdelWeb.fr]
2572 *) Fix BN_mul_word for the case where the word is 0. (We have to use
2573 BN_zero, we may not return a BIGNUM with an array consisting of
2577 *) Avoid calling abort() from within the library when problems are
2578 detected, except if preprocessor symbols have been defined
2579 (such as REF_CHECK, BN_DEBUG etc.).
2582 *) New openssl application 'rsautl'. This utility can be
2583 used for low level RSA operations. DER public key
2584 BIO/fp routines also added.
2587 *) New Configure entry and patches for compiling on QNX 4.
2588 [Andreas Schneider <andreas@ds3.etech.fh-hamburg.de>]
2590 *) A demo state-machine implementation was sponsored by
2591 Nuron (http://www.nuron.com/) and is now available in
2592 demos/state_machine.
2595 *) New options added to the 'dgst' utility for signature
2596 generation and verification.
2599 *) Unrecognized PKCS#7 content types are now handled via a
2600 catch all ASN1_TYPE structure. This allows unsupported
2601 types to be stored as a "blob" and an application can
2602 encode and decode it manually.
2605 *) Fix various signed/unsigned issues to make a_strex.c
2607 [Oscar Jacobsson <oscar.jacobsson@celocom.com>]
2609 *) ASN1 fixes. i2d_ASN1_OBJECT was not returning the correct
2610 length if passed a buffer. ASN1_INTEGER_to_BN failed
2611 if passed a NULL BN and its argument was negative.
2612 [Steve Henson, pointed out by Sven Heiberg <sven@tartu.cyber.ee>]
2614 *) Modification to PKCS#7 encoding routines to output definite
2615 length encoding. Since currently the whole structures are in
2616 memory there's not real point in using indefinite length
2617 constructed encoding. However if OpenSSL is compiled with
2618 the flag PKCS7_INDEFINITE_ENCODING the old form is used.
2621 *) Added BIO_vprintf() and BIO_vsnprintf().
2624 *) Added more prefixes to parse for in the the strings written
2625 through a logging bio, to cover all the levels that are available
2626 through syslog. The prefixes are now:
2628 PANIC, EMERG, EMR => LOG_EMERG
2629 ALERT, ALR => LOG_ALERT
2630 CRIT, CRI => LOG_CRIT
2631 ERROR, ERR => LOG_ERR
2632 WARNING, WARN, WAR => LOG_WARNING
2633 NOTICE, NOTE, NOT => LOG_NOTICE
2634 INFO, INF => LOG_INFO
2635 DEBUG, DBG => LOG_DEBUG
2637 and as before, if none of those prefixes are present at the
2638 beginning of the string, LOG_ERR is chosen.
2640 On Win32, the LOG_* levels are mapped according to this:
2642 LOG_EMERG, LOG_ALERT, LOG_CRIT, LOG_ERR => EVENTLOG_ERROR_TYPE
2643 LOG_WARNING => EVENTLOG_WARNING_TYPE
2644 LOG_NOTICE, LOG_INFO, LOG_DEBUG => EVENTLOG_INFORMATION_TYPE
2648 *) Made it possible to reconfigure with just the configuration
2649 argument "reconf" or "reconfigure". The command line arguments
2650 are stored in Makefile.ssl in the variable CONFIGURE_ARGS,
2651 and are retrieved from there when reconfiguring.
2655 [Assar Westerlund <assar@sics.se>, Richard Levitte]
2657 *) Add the arguments -CAfile and -CApath to the pkcs12 utility.
2660 *) The obj_dat.pl script was messing up the sorting of object
2661 names. The reason was that it compared the quoted version
2662 of strings as a result "OCSP" > "OCSP Signing" because
2663 " > SPACE. Changed script to store unquoted versions of
2664 names and add quotes on output. It was also omitting some
2665 names from the lookup table if they were given a default
2666 value (that is if SN is missing it is given the same
2667 value as LN and vice versa), these are now added on the
2668 grounds that if an object has a name we should be able to
2669 look it up. Finally added warning output when duplicate
2670 short or long names are found.
2673 *) Changes needed for Tandem NSK.
2674 [Scott Uroff <scott@xypro.com>]
2676 *) Fix SSL 2.0 rollback checking: Due to an off-by-one error in
2677 RSA_padding_check_SSLv23(), special padding was never detected
2678 and thus the SSL 3.0/TLS 1.0 countermeasure against protocol
2679 version rollback attacks was not effective.
2681 In s23_clnt.c, don't use special rollback-attack detection padding
2682 (RSA_SSLV23_PADDING) if SSL 2.0 is the only protocol enabled in the
2683 client; similarly, in s23_srvr.c, don't do the rollback check if
2684 SSL 2.0 is the only protocol enabled in the server.
2687 *) Make it possible to get hexdumps of unprintable data with 'openssl
2688 asn1parse'. By implication, the functions ASN1_parse_dump() and
2689 BIO_dump_indent() are added.
2692 *) New functions ASN1_STRING_print_ex() and X509_NAME_print_ex()
2693 these print out strings and name structures based on various
2694 flags including RFC2253 support and proper handling of
2695 multibyte characters. Added options to the 'x509' utility
2696 to allow the various flags to be set.
2699 *) Various fixes to use ASN1_TIME instead of ASN1_UTCTIME.
2700 Also change the functions X509_cmp_current_time() and
2701 X509_gmtime_adj() work with an ASN1_TIME structure,
2702 this will enable certificates using GeneralizedTime in validity
2703 dates to be checked.
2706 *) Make the NEG_PUBKEY_BUG code (which tolerates invalid
2707 negative public key encodings) on by default,
2708 NO_NEG_PUBKEY_BUG can be set to disable it.
2711 *) New function c2i_ASN1_OBJECT() which acts on ASN1_OBJECT
2712 content octets. An i2c_ASN1_OBJECT is unnecessary because
2713 the encoding can be trivially obtained from the structure.
2716 *) crypto/err.c locking bugfix: Use write locks (CRYPTO_w_[un]lock),
2717 not read locks (CRYPTO_r_[un]lock).
2720 *) A first attempt at creating official support for shared
2721 libraries through configuration. I've kept it so the
2722 default is static libraries only, and the OpenSSL programs
2723 are always statically linked for now, but there are
2724 preparations for dynamic linking in place.
2725 This has been tested on Linux and Tru64.
2728 *) Randomness polling function for Win9x, as described in:
2729 Peter Gutmann, Software Generation of Practically Strong
2733 *) Fix so PRNG is seeded in req if using an already existing
2737 *) New options to smime application. -inform and -outform
2738 allow alternative formats for the S/MIME message including
2739 PEM and DER. The -content option allows the content to be
2740 specified separately. This should allow things like Netscape
2741 form signing output easier to verify.
2744 *) Fix the ASN1 encoding of tags using the 'long form'.
2747 *) New ASN1 functions, i2c_* and c2i_* for INTEGER and BIT
2748 STRING types. These convert content octets to and from the
2749 underlying type. The actual tag and length octets are
2750 already assumed to have been read in and checked. These
2751 are needed because all other string types have virtually
2752 identical handling apart from the tag. By having versions
2753 of the ASN1 functions that just operate on content octets
2754 IMPLICIT tagging can be handled properly. It also allows
2755 the ASN1_ENUMERATED code to be cut down because ASN1_ENUMERATED
2756 and ASN1_INTEGER are identical apart from the tag.
2759 *) Change the handling of OID objects as follows:
2761 - New object identifiers are inserted in objects.txt, following
2762 the syntax given in objects.README.
2763 - objects.pl is used to process obj_mac.num and create a new
2765 - obj_dat.pl is used to create a new obj_dat.h, using the data in
2768 This is currently kind of a hack, and the perl code in objects.pl
2769 isn't very elegant, but it works as I intended. The simplest way
2770 to check that it worked correctly is to look in obj_dat.h and
2771 check the array nid_objs and make sure the objects haven't moved
2772 around (this is important!). Additions are OK, as well as
2773 consistent name changes.
2776 *) Add BSD-style MD5-based passwords to 'openssl passwd' (option '-1').
2779 *) Addition of the command line parameter '-rand file' to 'openssl req'.
2780 The given file adds to whatever has already been seeded into the
2781 random pool through the RANDFILE configuration file option or
2782 environment variable, or the default random state file.
2785 *) mkstack.pl now sorts each macro group into lexical order.
2786 Previously the output order depended on the order the files
2787 appeared in the directory, resulting in needless rewriting
2791 *) Patches to make OpenSSL compile under Win32 again. Mostly
2792 work arounds for the VC++ problem that it treats func() as
2793 func(void). Also stripped out the parts of mkdef.pl that
2794 added extra typesafe functions: these no longer exist.
2797 *) Reorganisation of the stack code. The macros are now all
2798 collected in safestack.h . Each macro is defined in terms of
2799 a "stack macro" of the form SKM_<name>(type, a, b). The
2800 DEBUG_SAFESTACK is now handled in terms of function casts,
2801 this has the advantage of retaining type safety without the
2802 use of additional functions. If DEBUG_SAFESTACK is not defined
2803 then the non typesafe macros are used instead. Also modified the
2804 mkstack.pl script to handle the new form. Needs testing to see
2805 if which (if any) compilers it chokes and maybe make DEBUG_SAFESTACK
2806 the default if no major problems. Similar behaviour for ASN1_SET_OF
2807 and PKCS12_STACK_OF.
2810 *) When some versions of IIS use the 'NET' form of private key the
2811 key derivation algorithm is different. Normally MD5(password) is
2812 used as a 128 bit RC4 key. In the modified case
2813 MD5(MD5(password) + "SGCKEYSALT") is used insted. Added some
2814 new functions i2d_RSA_NET(), d2i_RSA_NET() etc which are the same
2815 as the old Netscape_RSA functions except they have an additional
2816 'sgckey' parameter which uses the modified algorithm. Also added
2817 an -sgckey command line option to the rsa utility. Thanks to
2818 Adrian Peck <bertie@ncipher.com> for posting details of the modified
2819 algorithm to openssl-dev.
2822 *) The evp_local.h macros were using 'c.##kname' which resulted in
2823 invalid expansion on some systems (SCO 5.0.5 for example).
2824 Corrected to 'c.kname'.
2825 [Phillip Porch <root@theporch.com>]
2827 *) New X509_get1_email() and X509_REQ_get1_email() functions that return
2828 a STACK of email addresses from a certificate or request, these look
2829 in the subject name and the subject alternative name extensions and
2830 omit any duplicate addresses.
2833 *) Re-implement BN_mod_exp2_mont using independent (and larger) windows.
2834 This makes DSA verification about 2 % faster.
2837 *) Increase maximum window size in BN_mod_exp_... to 6 bits instead of 5
2838 (meaning that now 2^5 values will be precomputed, which is only 4 KB
2839 plus overhead for 1024 bit moduli).
2840 This makes exponentiations about 0.5 % faster for 1024 bit
2841 exponents (as measured by "openssl speed rsa2048").
2844 *) Rename memory handling macros to avoid conflicts with other
2846 Malloc => OPENSSL_malloc
2847 Malloc_locked => OPENSSL_malloc_locked
2848 Realloc => OPENSSL_realloc
2849 Free => OPENSSL_free
2852 *) New function BN_mod_exp_mont_word for small bases (roughly 15%
2853 faster than BN_mod_exp_mont, i.e. 7% for a full DH exchange).
2856 *) CygWin32 support.
2857 [John Jarvie <jjarvie@newsguy.com>]
2859 *) The type-safe stack code has been rejigged. It is now only compiled
2860 in when OpenSSL is configured with the DEBUG_SAFESTACK option and
2861 by default all type-specific stack functions are "#define"d back to
2862 standard stack functions. This results in more streamlined output
2863 but retains the type-safety checking possibilities of the original
2867 *) The STACK code has been cleaned up, and certain type declarations
2868 that didn't make a lot of sense have been brought in line. This has
2869 also involved a cleanup of sorts in safestack.h to more correctly
2870 map type-safe stack functions onto their plain stack counterparts.
2871 This work has also resulted in a variety of "const"ifications of
2872 lots of the code, especially "_cmp" operations which should normally
2873 be prototyped with "const" parameters anyway.
2876 *) When generating bytes for the first time in md_rand.c, 'stir the pool'
2877 by seeding with STATE_SIZE dummy bytes (with zero entropy count).
2878 (The PRNG state consists of two parts, the large pool 'state' and 'md',
2879 where all of 'md' is used each time the PRNG is used, but 'state'
2880 is used only indexed by a cyclic counter. As entropy may not be
2881 well distributed from the beginning, 'md' is important as a
2882 chaining variable. However, the output function chains only half
2883 of 'md', i.e. 80 bits. ssleay_rand_add, on the other hand, chains
2884 all of 'md', and seeding with STATE_SIZE dummy bytes will result
2885 in all of 'state' being rewritten, with the new values depending
2886 on virtually all of 'md'. This overcomes the 80 bit limitation.)
2889 *) In ssl/s2_clnt.c and ssl/s3_clnt.c, call ERR_clear_error() when
2890 the handshake is continued after ssl_verify_cert_chain();
2891 otherwise, if SSL_VERIFY_NONE is set, remaining error codes
2892 can lead to 'unexplainable' connection aborts later.
2893 [Bodo Moeller; problem tracked down by Lutz Jaenicke]
2895 *) Major EVP API cipher revision.
2896 Add hooks for extra EVP features. This allows various cipher
2897 parameters to be set in the EVP interface. Support added for variable
2898 key length ciphers via the EVP_CIPHER_CTX_set_key_length() function and
2899 setting of RC2 and RC5 parameters.
2901 Modify EVP_OpenInit() and EVP_SealInit() to cope with variable key length
2904 Remove lots of duplicated code from the EVP library. For example *every*
2905 cipher init() function handles the 'iv' in the same way according to the
2906 cipher mode. They also all do nothing if the 'key' parameter is NULL and
2907 for CFB and OFB modes they zero ctx->num.
2909 New functionality allows removal of S/MIME code RC2 hack.
2911 Most of the routines have the same form and so can be declared in terms
2914 By shifting this to the top level EVP_CipherInit() it can be removed from
2915 all individual ciphers. If the cipher wants to handle IVs or keys
2916 differently it can set the EVP_CIPH_CUSTOM_IV or EVP_CIPH_ALWAYS_CALL_INIT
2919 Change lots of functions like EVP_EncryptUpdate() to now return a
2920 value: although software versions of the algorithms cannot fail
2921 any installed hardware versions can.
2924 *) Implement SSL_OP_TLS_ROLLBACK_BUG: In ssl3_get_client_key_exchange, if
2925 this option is set, tolerate broken clients that send the negotiated
2926 protocol version number instead of the requested protocol version
2930 *) Call dh_tmp_cb (set by ..._TMP_DH_CB) with correct 'is_export' flag;
2931 i.e. non-zero for export ciphersuites, zero otherwise.
2932 Previous versions had this flag inverted, inconsistent with
2933 rsa_tmp_cb (..._TMP_RSA_CB).
2934 [Bodo Moeller; problem reported by Amit Chopra]
2936 *) Add missing DSA library text string. Work around for some IIS
2937 key files with invalid SEQUENCE encoding.
2940 *) Add a document (doc/standards.txt) that list all kinds of standards
2941 and so on that are implemented in OpenSSL.
2944 *) Enhance c_rehash script. Old version would mishandle certificates
2945 with the same subject name hash and wouldn't handle CRLs at all.
2946 Added -fingerprint option to crl utility, to support new c_rehash
2950 *) Eliminate non-ANSI declarations in crypto.h and stack.h.
2953 *) Fix for SSL server purpose checking. Server checking was
2954 rejecting certificates which had extended key usage present
2955 but no ssl client purpose.
2956 [Steve Henson, reported by Rene Grosser <grosser@hisolutions.com>]
2958 *) Make PKCS#12 code work with no password. The PKCS#12 spec
2959 is a little unclear about how a blank password is handled.
2960 Since the password in encoded as a BMPString with terminating
2961 double NULL a zero length password would end up as just the
2962 double NULL. However no password at all is different and is
2963 handled differently in the PKCS#12 key generation code. NS
2964 treats a blank password as zero length. MSIE treats it as no
2965 password on export: but it will try both on import. We now do
2966 the same: PKCS12_parse() tries zero length and no password if
2967 the password is set to "" or NULL (NULL is now a valid password:
2968 it wasn't before) as does the pkcs12 application.
2971 *) Bugfixes in apps/x509.c: Avoid a memory leak; and don't use
2972 perror when PEM_read_bio_X509_REQ fails, the error message must
2973 be obtained from the error queue.
2976 *) Avoid 'thread_hash' memory leak in crypto/err/err.c by freeing
2977 it in ERR_remove_state if appropriate, and change ERR_get_state
2978 accordingly to avoid race conditions (this is necessary because
2979 thread_hash is no longer constant once set).
2982 *) Bugfix for linux-elf makefile.one.
2985 *) RSA_get_default_method() will now cause a default
2986 RSA_METHOD to be chosen if one doesn't exist already.
2987 Previously this was only set during a call to RSA_new()
2988 or RSA_new_method(NULL) meaning it was possible for
2989 RSA_get_default_method() to return NULL.
2992 *) Added native name translation to the existing DSO code
2993 that will convert (if the flag to do so is set) filenames
2994 that are sufficiently small and have no path information
2995 into a canonical native form. Eg. "blah" converted to
2996 "libblah.so" or "blah.dll" etc.
2999 *) New function ERR_error_string_n(e, buf, len) which is like
3000 ERR_error_string(e, buf), but writes at most 'len' bytes
3001 including the 0 terminator. For ERR_error_string_n, 'buf'
3003 [Damien Miller <djm@mindrot.org>, Bodo Moeller]
3005 *) CONF library reworked to become more general. A new CONF
3006 configuration file reader "class" is implemented as well as a
3007 new functions (NCONF_*, for "New CONF") to handle it. The now
3008 old CONF_* functions are still there, but are reimplemented to
3009 work in terms of the new functions. Also, a set of functions
3010 to handle the internal storage of the configuration data is
3011 provided to make it easier to write new configuration file
3012 reader "classes" (I can definitely see something reading a
3013 configuration file in XML format, for example), called _CONF_*,
3014 or "the configuration storage API"...
3016 The new configuration file reading functions are:
3018 NCONF_new, NCONF_free, NCONF_load, NCONF_load_fp, NCONF_load_bio,
3019 NCONF_get_section, NCONF_get_string, NCONF_get_numbre
3021 NCONF_default, NCONF_WIN32
3023 NCONF_dump_fp, NCONF_dump_bio
3025 NCONF_default and NCONF_WIN32 are method (or "class") choosers,
3026 NCONF_new creates a new CONF object. This works in the same way
3027 as other interfaces in OpenSSL, like the BIO interface.
3028 NCONF_dump_* dump the internal storage of the configuration file,
3029 which is useful for debugging. All other functions take the same
3030 arguments as the old CONF_* functions wth the exception of the
3031 first that must be a `CONF *' instead of a `LHASH *'.
3033 To make it easer to use the new classes with the old CONF_* functions,
3034 the function CONF_set_default_method is provided.
3037 *) Add '-tls1' option to 'openssl ciphers', which was already
3038 mentioned in the documentation but had not been implemented.
3039 (This option is not yet really useful because even the additional
3040 experimental TLS 1.0 ciphers are currently treated as SSL 3.0 ciphers.)
3043 *) Initial DSO code added into libcrypto for letting OpenSSL (and
3044 OpenSSL-based applications) load shared libraries and bind to
3045 them in a portable way.
3046 [Geoff Thorpe, with contributions from Richard Levitte]
3048 Changes between 0.9.5 and 0.9.5a [1 Apr 2000]
3050 *) Make sure _lrotl and _lrotr are only used with MSVC.
3052 *) Use lock CRYPTO_LOCK_RAND correctly in ssleay_rand_status
3053 (the default implementation of RAND_status).
3055 *) Rename openssl x509 option '-crlext', which was added in 0.9.5,
3056 to '-clrext' (= clear extensions), as intended and documented.
3057 [Bodo Moeller; inconsistency pointed out by Michael Attili
3060 *) Fix for HMAC. It wasn't zeroing the rest of the block if the key length
3061 was larger than the MD block size.
3062 [Steve Henson, pointed out by Yost William <YostW@tce.com>]
3064 *) Modernise PKCS12_parse() so it uses STACK_OF(X509) for its ca argument
3065 fix a leak when the ca argument was passed as NULL. Stop X509_PUBKEY_set()
3066 using the passed key: if the passed key was a private key the result
3067 of X509_print(), for example, would be to print out all the private key
3071 *) des_quad_cksum() byte order bug fix.
3072 [Ulf Möller, using the problem description in krb4-0.9.7, where
3073 the solution is attributed to Derrick J Brashear <shadow@DEMENTIA.ORG>]
3075 *) Fix so V_ASN1_APP_CHOOSE works again: however its use is strongly
3077 [Steve Henson, pointed out by Brian Korver <briank@cs.stanford.edu>]
3079 *) For easily testing in shell scripts whether some command
3080 'openssl XXX' exists, the new pseudo-command 'openssl no-XXX'
3081 returns with exit code 0 iff no command of the given name is available.
3082 'no-XXX' is printed in this case, 'XXX' otherwise. In both cases,
3083 the output goes to stdout and nothing is printed to stderr.
3084 Additional arguments are always ignored.
3086 Since for each cipher there is a command of the same name,
3087 the 'no-cipher' compilation switches can be tested this way.
3089 ('openssl no-XXX' is not able to detect pseudo-commands such
3090 as 'quit', 'list-XXX-commands', or 'no-XXX' itself.)
3093 *) Update test suite so that 'make test' succeeds in 'no-rsa' configuration.
3096 *) For SSL_[CTX_]set_tmp_dh, don't create a DH key if SSL_OP_SINGLE_DH_USE
3097 is set; it will be thrown away anyway because each handshake creates
3099 ssl_cert_dup, which is used by SSL_new, now copies DH keys in addition
3100 to parameters -- in previous versions (since OpenSSL 0.9.3) the
3101 'default key' from SSL_CTX_set_tmp_dh would always be lost, meanining
3102 you effectivly got SSL_OP_SINGLE_DH_USE when using this macro.
3105 *) New s_client option -ign_eof: EOF at stdin is ignored, and
3106 'Q' and 'R' lose their special meanings (quit/renegotiate).
3107 This is part of what -quiet does; unlike -quiet, -ign_eof
3108 does not suppress any output.
3111 *) Add compatibility options to the purpose and trust code. The
3112 purpose X509_PURPOSE_ANY is "any purpose" which automatically
3113 accepts a certificate or CA, this was the previous behaviour,
3114 with all the associated security issues.
3116 X509_TRUST_COMPAT is the old trust behaviour: only and
3117 automatically trust self signed roots in certificate store. A
3118 new trust setting X509_TRUST_DEFAULT is used to specify that
3119 a purpose has no associated trust setting and it should instead
3120 use the value in the default purpose.
3123 *) Fix the PKCS#8 DSA private key code so it decodes keys again
3124 and fix a memory leak.
3127 *) In util/mkerr.pl (which implements 'make errors'), preserve
3128 reason strings from the previous version of the .c file, as
3129 the default to have only downcase letters (and digits) in
3130 automatically generated reasons codes is not always appropriate.
3133 *) In ERR_load_ERR_strings(), build an ERR_LIB_SYS error reason table
3134 using strerror. Previously, ERR_reason_error_string() returned
3135 library names as reason strings for SYSerr; but SYSerr is a special
3136 case where small numbers are errno values, not library numbers.
3139 *) Add '-dsaparam' option to 'openssl dhparam' application. This
3140 converts DSA parameters into DH parameters. (When creating parameters,
3141 DSA_generate_parameters is used.)
3144 *) Include 'length' (recommended exponent length) in C code generated
3145 by 'openssl dhparam -C'.
3148 *) The second argument to set_label in perlasm was already being used
3149 so couldn't be used as a "file scope" flag. Moved to third argument
3153 *) In PEM_ASN1_write_bio and some other functions, use RAND_pseudo_bytes
3154 instead of RAND_bytes for encryption IVs and salts.
3157 *) Include RAND_status() into RAND_METHOD instead of implementing
3158 it only for md_rand.c Otherwise replacing the PRNG by calling
3159 RAND_set_rand_method would be impossible.
3162 *) Don't let DSA_generate_key() enter an infinite loop if the random
3163 number generation fails.
3166 *) New 'rand' application for creating pseudo-random output.
3169 *) Added configuration support for Linux/IA64
3170 [Rolf Haberrecker <rolf@suse.de>]
3172 *) Assembler module support for Mingw32.
3175 *) Shared library support for HPUX (in shlib/).
3176 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE> and Anonymous]
3178 *) Shared library support for Solaris gcc.
3179 [Lutz Behnke <behnke@trustcenter.de>]
3181 Changes between 0.9.4 and 0.9.5 [28 Feb 2000]
3183 *) PKCS7_encrypt() was adding text MIME headers twice because they
3184 were added manually and by SMIME_crlf_copy().
3187 *) In bntest.c don't call BN_rand with zero bits argument.
3188 [Steve Henson, pointed out by Andrew W. Gray <agray@iconsinc.com>]
3190 *) BN_mul bugfix: In bn_mul_part_recursion() only the a>a[n] && b>b[n]
3191 case was implemented. This caused BN_div_recp() to fail occasionally.
3194 *) Add an optional second argument to the set_label() in the perl
3195 assembly language builder. If this argument exists and is set
3196 to 1 it signals that the assembler should use a symbol whose
3197 scope is the entire file, not just the current function. This
3198 is needed with MASM which uses the format label:: for this scope.
3199 [Steve Henson, pointed out by Peter Runestig <peter@runestig.com>]
3201 *) Change the ASN1 types so they are typedefs by default. Before
3202 almost all types were #define'd to ASN1_STRING which was causing
3203 STACK_OF() problems: you couldn't declare STACK_OF(ASN1_UTF8STRING)
3207 *) Change names of new functions to the new get1/get0 naming
3208 convention: After 'get1', the caller owns a reference count
3209 and has to call ..._free; 'get0' returns a pointer to some
3210 data structure without incrementing reference counters.
3211 (Some of the existing 'get' functions increment a reference
3212 counter, some don't.)
3213 Similarly, 'set1' and 'add1' functions increase reference
3214 counters or duplicate objects.
3217 *) Allow for the possibility of temp RSA key generation failure:
3218 the code used to assume it always worked and crashed on failure.
3221 *) Fix potential buffer overrun problem in BIO_printf().
3222 [Ulf Möller, using public domain code by Patrick Powell; problem
3223 pointed out by David Sacerdote <das33@cornell.edu>]
3225 *) Support EGD <http://www.lothar.com/tech/crypto/>. New functions
3226 RAND_egd() and RAND_status(). In the command line application,
3227 the EGD socket can be specified like a seed file using RANDFILE
3231 *) Allow the string CERTIFICATE to be tolerated in PKCS#7 structures.
3232 Some CAs (e.g. Verisign) distribute certificates in this form.
3235 *) Remove the SSL_ALLOW_ADH compile option and set the default cipher
3236 list to exclude them. This means that no special compilation option
3237 is needed to use anonymous DH: it just needs to be included in the
3241 *) Change the EVP_MD_CTX_type macro so its meaning consistent with
3242 EVP_MD_type. The old functionality is available in a new macro called
3243 EVP_MD_md(). Change code that uses it and update docs.
3246 *) ..._ctrl functions now have corresponding ..._callback_ctrl functions
3247 where the 'void *' argument is replaced by a function pointer argument.
3248 Previously 'void *' was abused to point to functions, which works on
3249 many platforms, but is not correct. As these functions are usually
3250 called by macros defined in OpenSSL header files, most source code
3251 should work without changes.
3254 *) <openssl/opensslconf.h> (which is created by Configure) now contains
3255 sections with information on -D... compiler switches used for
3256 compiling the library so that applications can see them. To enable
3257 one of these sections, a pre-processor symbol OPENSSL_..._DEFINES
3258 must be defined. E.g.,
3259 #define OPENSSL_ALGORITHM_DEFINES
3260 #include <openssl/opensslconf.h>
3261 defines all pertinent NO_<algo> symbols, such as NO_IDEA, NO_RSA, etc.
3262 [Richard Levitte, Ulf and Bodo Möller]
3264 *) Bugfix: Tolerate fragmentation and interleaving in the SSL 3/TLS
3268 *) Change the 'other' type in certificate aux info to a STACK_OF
3269 X509_ALGOR. Although not an AlgorithmIdentifier as such it has
3270 the required ASN1 format: arbitrary types determined by an OID.
3273 *) Add some PEM_write_X509_REQ_NEW() functions and a command line
3274 argument to 'req'. This is not because the function is newer or
3275 better than others it just uses the work 'NEW' in the certificate
3276 request header lines. Some software needs this.
3279 *) Reorganise password command line arguments: now passwords can be
3280 obtained from various sources. Delete the PEM_cb function and make
3281 it the default behaviour: i.e. if the callback is NULL and the
3282 usrdata argument is not NULL interpret it as a null terminated pass
3283 phrase. If usrdata and the callback are NULL then the pass phrase
3284 is prompted for as usual.
3287 *) Add support for the Compaq Atalla crypto accelerator. If it is installed,
3288 the support is automatically enabled. The resulting binaries will
3289 autodetect the card and use it if present.
3290 [Ben Laurie and Compaq Inc.]
3292 *) Work around for Netscape hang bug. This sends certificate request
3293 and server done in one record. Since this is perfectly legal in the
3294 SSL/TLS protocol it isn't a "bug" option and is on by default. See
3295 the bugs/SSLv3 entry for more info.
3298 *) HP-UX tune-up: new unified configs, HP C compiler bug workaround.
3301 *) Add -rand argument to smime and pkcs12 applications and read/write
3305 *) New 'passwd' tool for crypt(3) and apr1 password hashes.
3308 *) Add command line password options to the remaining applications.
3311 *) Bug fix for BN_div_recp() for numerators with an even number of
3315 *) More tests in bntest.c, and changed test_bn output.
3318 *) ./config recognizes MacOS X now.
3321 *) Bug fix for BN_div() when the first words of num and divsor are
3322 equal (it gave wrong results if (rem=(n1-q*d0)&BN_MASK2) < d0).
3325 *) Add support for various broken PKCS#8 formats, and command line
3326 options to produce them.
3329 *) New functions BN_CTX_start(), BN_CTX_get() and BT_CTX_end() to
3330 get temporary BIGNUMs from a BN_CTX.
3333 *) Correct return values in BN_mod_exp_mont() and BN_mod_exp2_mont()
3337 *) Change the SSLeay_add_all_*() functions to OpenSSL_add_all_*() and
3338 include a #define from the old name to the new. The original intent
3339 was that statically linked binaries could for example just call
3340 SSLeay_add_all_ciphers() to just add ciphers to the table and not
3341 link with digests. This never worked becayse SSLeay_add_all_digests()
3342 and SSLeay_add_all_ciphers() were in the same source file so calling
3343 one would link with the other. They are now in separate source files.
3346 *) Add a new -notext option to 'ca' and a -pubkey option to 'spkac'.
3349 *) Use a less unusual form of the Miller-Rabin primality test (it used
3350 a binary algorithm for exponentiation integrated into the Miller-Rabin
3351 loop, our standard modexp algorithms are faster).
3354 *) Support for the EBCDIC character set completed.
3355 [Martin Kraemer <Martin.Kraemer@Mch.SNI.De>]
3357 *) Source code cleanups: use const where appropriate, eliminate casts,
3358 use void * instead of char * in lhash.
3361 *) Bugfix: ssl3_send_server_key_exchange was not restartable
3362 (the state was not changed to SSL3_ST_SW_KEY_EXCH_B, and because of
3363 this the server could overwrite ephemeral keys that the client
3367 *) Turn DSA_is_prime into a macro that calls BN_is_prime,
3368 using 50 iterations of the Rabin-Miller test.
3370 DSA_generate_parameters now uses BN_is_prime_fasttest (with 50
3371 iterations of the Rabin-Miller test as required by the appendix
3372 to FIPS PUB 186[-1]) instead of DSA_is_prime.
3373 As BN_is_prime_fasttest includes trial division, DSA parameter
3374 generation becomes much faster.
3376 This implies a change for the callback functions in DSA_is_prime
3377 and DSA_generate_parameters: The callback function is called once
3378 for each positive witness in the Rabin-Miller test, not just
3379 occasionally in the inner loop; and the parameters to the
3380 callback function now provide an iteration count for the outer
3381 loop rather than for the current invocation of the inner loop.
3382 DSA_generate_parameters additionally can call the callback
3383 function with an 'iteration count' of -1, meaning that a
3384 candidate has passed the trial division test (when q is generated
3385 from an application-provided seed, trial division is skipped).
3388 *) New function BN_is_prime_fasttest that optionally does trial
3389 division before starting the Rabin-Miller test and has
3390 an additional BN_CTX * argument (whereas BN_is_prime always
3391 has to allocate at least one BN_CTX).
3392 'callback(1, -1, cb_arg)' is called when a number has passed the
3393 trial division stage.
3396 *) Fix for bug in CRL encoding. The validity dates weren't being handled
3400 *) New -pkcs12 option to CA.pl script to write out a PKCS#12 file.
3403 *) New function BN_pseudo_rand().
3406 *) Clean up BN_mod_mul_montgomery(): replace the broken (and unreadable)
3407 bignum version of BN_from_montgomery() with the working code from
3408 SSLeay 0.9.0 (the word based version is faster anyway), and clean up
3412 *) Avoid a race condition in s2_clnt.c (function get_server_hello) that
3413 made it impossible to use the same SSL_SESSION data structure in
3414 SSL2 clients in multiple threads.
3417 *) The return value of RAND_load_file() no longer counts bytes obtained
3418 by stat(). RAND_load_file(..., -1) is new and uses the complete file
3419 to seed the PRNG (previously an explicit byte count was required).
3420 [Ulf Möller, Bodo Möller]
3422 *) Clean up CRYPTO_EX_DATA functions, some of these didn't have prototypes
3423 used (char *) instead of (void *) and had casts all over the place.
3426 *) Make BN_generate_prime() return NULL on error if ret!=NULL.
3429 *) Retain source code compatibility for BN_prime_checks macro:
3430 BN_is_prime(..., BN_prime_checks, ...) now uses
3431 BN_prime_checks_for_size to determine the appropriate number of
3432 Rabin-Miller iterations.
3435 *) Diffie-Hellman uses "safe" primes: DH_check() return code renamed to
3436 DH_CHECK_P_NOT_SAFE_PRIME.
3437 (Check if this is true? OpenPGP calls them "strong".)
3440 *) Merge the functionality of "dh" and "gendh" programs into a new program
3441 "dhparam". The old programs are retained for now but will handle DH keys
3442 (instead of parameters) in future.
3445 *) Make the ciphers, s_server and s_client programs check the return values
3446 when a new cipher list is set.
3449 *) Enhance the SSL/TLS cipher mechanism to correctly handle the TLS 56bit
3450 ciphers. Before when the 56bit ciphers were enabled the sorting was
3453 The syntax for the cipher sorting has been extended to support sorting by
3454 cipher-strength (using the strength_bits hard coded in the tables).
3455 The new command is "@STRENGTH" (see also doc/apps/ciphers.pod).
3457 Fix a bug in the cipher-command parser: when supplying a cipher command
3458 string with an "undefined" symbol (neither command nor alphanumeric
3459 [A-Za-z0-9], ssl_set_cipher_list used to hang in an endless loop. Now
3460 an error is flagged.
3462 Due to the strength-sorting extension, the code of the
3463 ssl_create_cipher_list() function was completely rearranged. I hope that
3464 the readability was also increased :-)
3465 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
3467 *) Minor change to 'x509' utility. The -CAcreateserial option now uses 1
3468 for the first serial number and places 2 in the serial number file. This
3469 avoids problems when the root CA is created with serial number zero and
3470 the first user certificate has the same issuer name and serial number
3474 *) Fixes to X509_ATTRIBUTE utilities, change the 'req' program so it uses
3475 the new code. Add documentation for this stuff.
3478 *) Changes to X509_ATTRIBUTE utilities. These have been renamed from
3479 X509_*() to X509at_*() on the grounds that they don't handle X509
3480 structures and behave in an analagous way to the X509v3 functions:
3481 they shouldn't be called directly but wrapper functions should be used
3484 So we also now have some wrapper functions that call the X509at functions
3485 when passed certificate requests. (TO DO: similar things can be done with
3486 PKCS#7 signed and unsigned attributes, PKCS#12 attributes and a few other
3487 things. Some of these need some d2i or i2d and print functionality
3488 because they handle more complex structures.)
3491 *) Add missing #ifndefs that caused missing symbols when building libssl
3492 as a shared library without RSA. Use #ifndef NO_SSL2 instead of
3493 NO_RSA in ssl/s2*.c.
3494 [Kris Kennaway <kris@hub.freebsd.org>, modified by Ulf Möller]
3496 *) Precautions against using the PRNG uninitialized: RAND_bytes() now
3497 has a return value which indicates the quality of the random data
3498 (1 = ok, 0 = not seeded). Also an error is recorded on the thread's
3499 error queue. New function RAND_pseudo_bytes() generates output that is
3500 guaranteed to be unique but not unpredictable. RAND_add is like
3501 RAND_seed, but takes an extra argument for an entropy estimate
3502 (RAND_seed always assumes full entropy).
3505 *) Do more iterations of Rabin-Miller probable prime test (specifically,
3506 3 for 1024-bit primes, 6 for 512-bit primes, 12 for 256-bit primes
3507 instead of only 2 for all lengths; see BN_prime_checks_for_size definition
3508 in crypto/bn/bn_prime.c for the complete table). This guarantees a
3509 false-positive rate of at most 2^-80 for random input.
3512 *) Rewrite ssl3_read_n (ssl/s3_pkt.c) avoiding a couple of bugs.
3515 *) New function X509_CTX_rget_chain() (renamed to X509_CTX_get1_chain
3516 in the 0.9.5 release), this returns the chain
3517 from an X509_CTX structure with a dup of the stack and all
3518 the X509 reference counts upped: so the stack will exist
3519 after X509_CTX_cleanup() has been called. Modify pkcs12.c
3522 Also make SSL_SESSION_print() print out the verify return
3526 *) Add manpage for the pkcs12 command. Also change the default
3527 behaviour so MAC iteration counts are used unless the new
3528 -nomaciter option is used. This improves file security and
3529 only older versions of MSIE (4.0 for example) need it.
3532 *) Honor the no-xxx Configure options when creating .DEF files.
3535 *) Add PKCS#10 attributes to field table: challengePassword,
3536 unstructuredName and unstructuredAddress. These are taken from
3537 draft PKCS#9 v2.0 but are compatible with v1.2 provided no
3538 international characters are used.
3540 More changes to X509_ATTRIBUTE code: allow the setting of types
3541 based on strings. Remove the 'loc' parameter when adding
3542 attributes because these will be a SET OF encoding which is sorted
3546 *) Initial changes to the 'req' utility to allow request generation
3547 automation. This will allow an application to just generate a template
3548 file containing all the field values and have req construct the
3551 Initial support for X509_ATTRIBUTE handling. Stacks of these are
3552 used all over the place including certificate requests and PKCS#7
3553 structures. They are currently handled manually where necessary with
3554 some primitive wrappers for PKCS#7. The new functions behave in a
3555 manner analogous to the X509 extension functions: they allow
3556 attributes to be looked up by NID and added.
3558 Later something similar to the X509V3 code would be desirable to
3559 automatically handle the encoding, decoding and printing of the
3560 more complex types. The string types like challengePassword can
3561 be handled by the string table functions.
3563 Also modified the multi byte string table handling. Now there is
3564 a 'global mask' which masks out certain types. The table itself
3565 can use the flag STABLE_NO_MASK to ignore the mask setting: this
3566 is useful when for example there is only one permissible type
3567 (as in countryName) and using the mask might result in no valid
3571 *) Clean up 'Finished' handling, and add functions SSL_get_finished and
3572 SSL_get_peer_finished to allow applications to obtain the latest
3573 Finished messages sent to the peer or expected from the peer,
3574 respectively. (SSL_get_peer_finished is usually the Finished message
3575 actually received from the peer, otherwise the protocol will be aborted.)
3577 As the Finished message are message digests of the complete handshake
3578 (with a total of 192 bits for TLS 1.0 and more for SSL 3.0), they can
3579 be used for external authentication procedures when the authentication
3580 provided by SSL/TLS is not desired or is not enough.
3583 *) Enhanced support for Alpha Linux is added. Now ./config checks if
3584 the host supports BWX extension and if Compaq C is present on the
3585 $PATH. Just exploiting of the BWX extension results in 20-30%
3586 performance kick for some algorithms, e.g. DES and RC4 to mention
3587 a couple. Compaq C in turn generates ~20% faster code for MD5 and
3591 *) Add support for MS "fast SGC". This is arguably a violation of the
3592 SSL3/TLS protocol. Netscape SGC does two handshakes: the first with
3593 weak crypto and after checking the certificate is SGC a second one
3594 with strong crypto. MS SGC stops the first handshake after receiving
3595 the server certificate message and sends a second client hello. Since
3596 a server will typically do all the time consuming operations before
3597 expecting any further messages from the client (server key exchange
3598 is the most expensive) there is little difference between the two.
3600 To get OpenSSL to support MS SGC we have to permit a second client
3601 hello message after we have sent server done. In addition we have to
3602 reset the MAC if we do get this second client hello.
3605 *) Add a function 'd2i_AutoPrivateKey()' this will automatically decide
3606 if a DER encoded private key is RSA or DSA traditional format. Changed
3607 d2i_PrivateKey_bio() to use it. This is only needed for the "traditional"
3608 format DER encoded private key. Newer code should use PKCS#8 format which
3609 has the key type encoded in the ASN1 structure. Added DER private key
3610 support to pkcs8 application.
3613 *) SSL 3/TLS 1 servers now don't request certificates when an anonymous
3614 ciphersuites has been selected (as required by the SSL 3/TLS 1
3615 specifications). Exception: When SSL_VERIFY_FAIL_IF_NO_PEER_CERT
3616 is set, we interpret this as a request to violate the specification
3617 (the worst that can happen is a handshake failure, and 'correct'
3618 behaviour would result in a handshake failure anyway).
3621 *) In SSL_CTX_add_session, take into account that there might be multiple
3622 SSL_SESSION structures with the same session ID (e.g. when two threads
3623 concurrently obtain them from an external cache).
3624 The internal cache can handle only one SSL_SESSION with a given ID,
3625 so if there's a conflict, we now throw out the old one to achieve
3629 *) Add OIDs for idea and blowfish in CBC mode. This will allow both
3630 to be used in PKCS#5 v2.0 and S/MIME. Also add checking to
3631 some routines that use cipher OIDs: some ciphers do not have OIDs
3632 defined and so they cannot be used for S/MIME and PKCS#5 v2.0 for
3636 *) Simplify the trust setting structure and code. Now we just have
3637 two sequences of OIDs for trusted and rejected settings. These will
3638 typically have values the same as the extended key usage extension
3639 and any application specific purposes.
3641 The trust checking code now has a default behaviour: it will just
3642 check for an object with the same NID as the passed id. Functions can
3643 be provided to override either the default behaviour or the behaviour
3644 for a given id. SSL client, server and email already have functions
3645 in place for compatibility: they check the NID and also return "trusted"
3646 if the certificate is self signed.
3649 *) Add d2i,i2d bio/fp functions for PrivateKey: these convert the
3650 traditional format into an EVP_PKEY structure.
3653 *) Add a password callback function PEM_cb() which either prompts for
3654 a password if usr_data is NULL or otherwise assumes it is a null
3655 terminated password. Allow passwords to be passed on command line
3656 environment or config files in a few more utilities.
3659 *) Add a bunch of DER and PEM functions to handle PKCS#8 format private
3660 keys. Add some short names for PKCS#8 PBE algorithms and allow them
3661 to be specified on the command line for the pkcs8 and pkcs12 utilities.
3662 Update documentation.
3665 *) Support for ASN1 "NULL" type. This could be handled before by using
3666 ASN1_TYPE but there wasn't any function that would try to read a NULL
3667 and produce an error if it couldn't. For compatibility we also have
3668 ASN1_NULL_new() and ASN1_NULL_free() functions but these are faked and
3669 don't allocate anything because they don't need to.
3672 *) Initial support for MacOS is now provided. Examine INSTALL.MacOS
3674 [Andy Polyakov, Roy Woods <roy@centicsystems.ca>]
3676 *) Rebuild of the memory allocation routines used by OpenSSL code and
3677 possibly others as well. The purpose is to make an interface that
3678 provide hooks so anyone can build a separate set of allocation and
3679 deallocation routines to be used by OpenSSL, for example memory
3680 pool implementations, or something else, which was previously hard
3681 since Malloc(), Realloc() and Free() were defined as macros having
3682 the values malloc, realloc and free, respectively (except for Win32
3683 compilations). The same is provided for memory debugging code.
3684 OpenSSL already comes with functionality to find memory leaks, but
3685 this gives people a chance to debug other memory problems.
3687 With these changes, a new set of functions and macros have appeared:
3689 CRYPTO_set_mem_debug_functions() [F]
3690 CRYPTO_get_mem_debug_functions() [F]
3691 CRYPTO_dbg_set_options() [F]
3692 CRYPTO_dbg_get_options() [F]
3693 CRYPTO_malloc_debug_init() [M]
3695 The memory debug functions are NULL by default, unless the library
3696 is compiled with CRYPTO_MDEBUG or friends is defined. If someone
3697 wants to debug memory anyway, CRYPTO_malloc_debug_init() (which
3698 gives the standard debugging functions that come with OpenSSL) or
3699 CRYPTO_set_mem_debug_functions() (tells OpenSSL to use functions
3700 provided by the library user) must be used. When the standard
3701 debugging functions are used, CRYPTO_dbg_set_options can be used to
3702 request additional information:
3703 CRYPTO_dbg_set_options(V_CYRPTO_MDEBUG_xxx) corresponds to setting
3704 the CRYPTO_MDEBUG_xxx macro when compiling the library.
3706 Also, things like CRYPTO_set_mem_functions will always give the
3707 expected result (the new set of functions is used for allocation
3708 and deallocation) at all times, regardless of platform and compiler
3711 To finish it up, some functions that were never use in any other
3712 way than through macros have a new API and new semantic:
3715 CRYPTO_dbg_realloc()
3718 All macros of value have retained their old syntax.
3719 [Richard Levitte and Bodo Moeller]
3721 *) Some S/MIME fixes. The OID for SMIMECapabilities was wrong, the
3722 ordering of SMIMECapabilities wasn't in "strength order" and there
3723 was a missing NULL in the AlgorithmIdentifier for the SHA1 signature
3727 *) Some ASN1 types with illegal zero length encoding (INTEGER,
3728 ENUMERATED and OBJECT IDENTIFIER) choked the ASN1 routines.
3729 [Frans Heymans <fheymans@isaserver.be>, modified by Steve Henson]
3731 *) Merge in my S/MIME library for OpenSSL. This provides a simple
3732 S/MIME API on top of the PKCS#7 code, a MIME parser (with enough
3733 functionality to handle multipart/signed properly) and a utility
3734 called 'smime' to call all this stuff. This is based on code I
3735 originally wrote for Celo who have kindly allowed it to be
3736 included in OpenSSL.
3739 *) Add variants des_set_key_checked and des_set_key_unchecked of
3740 des_set_key (aka des_key_sched). Global variable des_check_key
3741 decides which of these is called by des_set_key; this way
3742 des_check_key behaves as it always did, but applications and
3743 the library itself, which was buggy for des_check_key == 1,
3744 have a cleaner way to pick the version they need.
3747 *) New function PKCS12_newpass() which changes the password of a
3751 *) Modify X509_TRUST and X509_PURPOSE so it also uses a static and
3752 dynamic mix. In both cases the ids can be used as an index into the
3753 table. Also modified the X509_TRUST_add() and X509_PURPOSE_add()
3754 functions so they accept a list of the field values and the
3755 application doesn't need to directly manipulate the X509_TRUST
3759 *) Modify the ASN1_STRING_TABLE stuff so it also uses bsearch and doesn't
3763 *) Modify the way the V3 extension code looks up extensions. This now
3764 works in a similar way to the object code: we have some "standard"
3765 extensions in a static table which is searched with OBJ_bsearch()
3766 and the application can add dynamic ones if needed. The file
3767 crypto/x509v3/ext_dat.h now has the info: this file needs to be
3768 updated whenever a new extension is added to the core code and kept
3769 in ext_nid order. There is a simple program 'tabtest.c' which checks
3770 this. New extensions are not added too often so this file can readily
3771 be maintained manually.
3773 There are two big advantages in doing things this way. The extensions
3774 can be looked up immediately and no longer need to be "added" using
3775 X509V3_add_standard_extensions(): this function now does nothing.
3776 [Side note: I get *lots* of email saying the extension code doesn't
3777 work because people forget to call this function]
3778 Also no dynamic allocation is done unless new extensions are added:
3779 so if we don't add custom extensions there is no need to call
3780 X509V3_EXT_cleanup().
3783 *) Modify enc utility's salting as follows: make salting the default. Add a
3784 magic header, so unsalted files fail gracefully instead of just decrypting
3785 to garbage. This is because not salting is a big security hole, so people
3786 should be discouraged from doing it.
3789 *) Fixes and enhancements to the 'x509' utility. It allowed a message
3790 digest to be passed on the command line but it only used this
3791 parameter when signing a certificate. Modified so all relevant
3792 operations are affected by the digest parameter including the
3793 -fingerprint and -x509toreq options. Also -x509toreq choked if a
3794 DSA key was used because it didn't fix the digest.
3797 *) Initial certificate chain verify code. Currently tests the untrusted
3798 certificates for consistency with the verify purpose (which is set
3799 when the X509_STORE_CTX structure is set up) and checks the pathlength.
3801 There is a NO_CHAIN_VERIFY compilation option to keep the old behaviour:
3802 this is because it will reject chains with invalid extensions whereas
3803 every previous version of OpenSSL and SSLeay made no checks at all.
3805 Trust code: checks the root CA for the relevant trust settings. Trust
3806 settings have an initial value consistent with the verify purpose: e.g.
3807 if the verify purpose is for SSL client use it expects the CA to be
3808 trusted for SSL client use. However the default value can be changed to
3809 permit custom trust settings: one example of this would be to only trust
3810 certificates from a specific "secure" set of CAs.
3812 Also added X509_STORE_CTX_new() and X509_STORE_CTX_free() functions
3813 which should be used for version portability: especially since the
3814 verify structure is likely to change more often now.
3816 SSL integration. Add purpose and trust to SSL_CTX and SSL and functions
3817 to set them. If not set then assume SSL clients will verify SSL servers
3820 Two new options to the verify program: -untrusted allows a set of
3821 untrusted certificates to be passed in and -purpose which sets the
3822 intended purpose of the certificate. If a purpose is set then the
3823 new chain verify code is used to check extension consistency.
3826 *) Support for the authority information access extension.
3829 *) Modify RSA and DSA PEM read routines to transparently handle
3830 PKCS#8 format private keys. New *_PUBKEY_* functions that handle
3831 public keys in a format compatible with certificate
3832 SubjectPublicKeyInfo structures. Unfortunately there were already
3833 functions called *_PublicKey_* which used various odd formats so
3834 these are retained for compatibility: however the DSA variants were
3835 never in a public release so they have been deleted. Changed dsa/rsa
3836 utilities to handle the new format: note no releases ever handled public
3837 keys so we should be OK.
3839 The primary motivation for this change is to avoid the same fiasco
3840 that dogs private keys: there are several incompatible private key
3841 formats some of which are standard and some OpenSSL specific and
3842 require various evil hacks to allow partial transparent handling and
3843 even then it doesn't work with DER formats. Given the option anything
3844 other than PKCS#8 should be dumped: but the other formats have to
3845 stay in the name of compatibility.
3847 With public keys and the benefit of hindsight one standard format
3848 is used which works with EVP_PKEY, RSA or DSA structures: though
3849 it clearly returns an error if you try to read the wrong kind of key.
3851 Added a -pubkey option to the 'x509' utility to output the public key.
3852 Also rename the EVP_PKEY_get_*() to EVP_PKEY_rget_*()
3853 (renamed to EVP_PKEY_get1_*() in the OpenSSL 0.9.5 release) and add
3854 EVP_PKEY_rset_*() functions (renamed to EVP_PKEY_set1_*())
3855 that do the same as the EVP_PKEY_assign_*() except they up the
3856 reference count of the added key (they don't "swallow" the
3860 *) Fixes to crypto/x509/by_file.c the code to read in certificates and
3861 CRLs would fail if the file contained no certificates or no CRLs:
3862 added a new function to read in both types and return the number
3863 read: this means that if none are read it will be an error. The
3864 DER versions of the certificate and CRL reader would always fail
3865 because it isn't possible to mix certificates and CRLs in DER format
3866 without choking one or the other routine. Changed this to just read
3867 a certificate: this is the best we can do. Also modified the code
3868 in apps/verify.c to take notice of return codes: it was previously
3869 attempting to read in certificates from NULL pointers and ignoring
3870 any errors: this is one reason why the cert and CRL reader seemed
3871 to work. It doesn't check return codes from the default certificate
3872 routines: these may well fail if the certificates aren't installed.
3875 *) Code to support otherName option in GeneralName.
3878 *) First update to verify code. Change the verify utility
3879 so it warns if it is passed a self signed certificate:
3880 for consistency with the normal behaviour. X509_verify
3881 has been modified to it will now verify a self signed
3882 certificate if *exactly* the same certificate appears
3883 in the store: it was previously impossible to trust a
3884 single self signed certificate. This means that:
3885 openssl verify ss.pem
3886 now gives a warning about a self signed certificate but
3887 openssl verify -CAfile ss.pem ss.pem
3891 *) For servers, store verify_result in SSL_SESSION data structure
3892 (and add it to external session representation).
3893 This is needed when client certificate verifications fails,
3894 but an application-provided verification callback (set by
3895 SSL_CTX_set_cert_verify_callback) allows accepting the session
3896 anyway (i.e. leaves x509_store_ctx->error != X509_V_OK
3897 but returns 1): When the session is reused, we have to set
3898 ssl->verify_result to the appropriate error code to avoid
3900 [Bodo Moeller, problem pointed out by Lutz Jaenicke]
3902 *) Fix a bug in the new PKCS#7 code: it didn't consider the
3903 case in PKCS7_dataInit() where the signed PKCS7 structure
3904 didn't contain any existing data because it was being created.
3905 [Po-Cheng Chen <pocheng@nst.com.tw>, slightly modified by Steve Henson]
3907 *) Add a salt to the key derivation routines in enc.c. This
3908 forms the first 8 bytes of the encrypted file. Also add a
3909 -S option to allow a salt to be input on the command line.
3912 *) New function X509_cmp(). Oddly enough there wasn't a function
3913 to compare two certificates. We do this by working out the SHA1
3914 hash and comparing that. X509_cmp() will be needed by the trust
3918 *) SSL_get1_session() is like SSL_get_session(), but increments
3919 the reference count in the SSL_SESSION returned.
3920 [Geoff Thorpe <geoff@eu.c2.net>]
3922 *) Fix for 'req': it was adding a null to request attributes.
3923 Also change the X509_LOOKUP and X509_INFO code to handle
3924 certificate auxiliary information.
3927 *) Add support for 40 and 64 bit RC2 and RC4 algorithms: document
3931 *) Add the possibility to add extra information to the memory leak
3932 detecting output, to form tracebacks, showing from where each
3933 allocation was originated: CRYPTO_push_info("constant string") adds
3934 the string plus current file name and line number to a per-thread
3935 stack, CRYPTO_pop_info() does the obvious, CRYPTO_remove_all_info()
3936 is like calling CYRPTO_pop_info() until the stack is empty.
3937 Also updated memory leak detection code to be multi-thread-safe.
3940 *) Add options -text and -noout to pkcs7 utility and delete the
3941 encryption options which never did anything. Update docs.
3944 *) Add options to some of the utilities to allow the pass phrase
3945 to be included on either the command line (not recommended on
3946 OSes like Unix) or read from the environment. Update the
3947 manpages and fix a few bugs.
3950 *) Add a few manpages for some of the openssl commands.
3953 *) Fix the -revoke option in ca. It was freeing up memory twice,
3954 leaking and not finding already revoked certificates.
3957 *) Extensive changes to support certificate auxiliary information.
3958 This involves the use of X509_CERT_AUX structure and X509_AUX
3959 functions. An X509_AUX function such as PEM_read_X509_AUX()
3960 can still read in a certificate file in the usual way but it
3961 will also read in any additional "auxiliary information". By
3962 doing things this way a fair degree of compatibility can be
3963 retained: existing certificates can have this information added
3964 using the new 'x509' options.
3966 Current auxiliary information includes an "alias" and some trust
3967 settings. The trust settings will ultimately be used in enhanced
3968 certificate chain verification routines: currently a certificate
3969 can only be trusted if it is self signed and then it is trusted
3973 *) Fix assembler for Alpha (tested only on DEC OSF not Linux or *BSD).
3974 The problem was that one of the replacement routines had not been working
3975 since SSLeay releases. For now the offending routine has been replaced
3976 with non-optimised assembler. Even so, this now gives around 95%
3977 performance improvement for 1024 bit RSA signs.
3980 *) Hack to fix PKCS#7 decryption when used with some unorthodox RC2
3981 handling. Most clients have the effective key size in bits equal to
3982 the key length in bits: so a 40 bit RC2 key uses a 40 bit (5 byte) key.
3983 A few however don't do this and instead use the size of the decrypted key
3984 to determine the RC2 key length and the AlgorithmIdentifier to determine
3985 the effective key length. In this case the effective key length can still
3986 be 40 bits but the key length can be 168 bits for example. This is fixed
3987 by manually forcing an RC2 key into the EVP_PKEY structure because the
3988 EVP code can't currently handle unusual RC2 key sizes: it always assumes
3989 the key length and effective key length are equal.
3992 *) Add a bunch of functions that should simplify the creation of
3993 X509_NAME structures. Now you should be able to do:
3994 X509_NAME_add_entry_by_txt(nm, "CN", MBSTRING_ASC, "Steve", -1, -1, 0);
3995 and have it automatically work out the correct field type and fill in
3996 the structures. The more adventurous can try:
3997 X509_NAME_add_entry_by_txt(nm, field, MBSTRING_UTF8, str, -1, -1, 0);
3998 and it will (hopefully) work out the correct multibyte encoding.
4001 *) Change the 'req' utility to use the new field handling and multibyte
4002 copy routines. Before the DN field creation was handled in an ad hoc
4003 way in req, ca, and x509 which was rather broken and didn't support
4004 BMPStrings or UTF8Strings. Since some software doesn't implement
4005 BMPStrings or UTF8Strings yet, they can be enabled using the config file
4006 using the dirstring_type option. See the new comment in the default
4007 openssl.cnf for more info.
4010 *) Make crypto/rand/md_rand.c more robust:
4011 - Assure unique random numbers after fork().
4012 - Make sure that concurrent threads access the global counter and
4013 md serializably so that we never lose entropy in them
4014 or use exactly the same state in multiple threads.
4015 Access to the large state is not always serializable because
4016 the additional locking could be a performance killer, and
4017 md should be large enough anyway.
4020 *) New file apps/app_rand.c with commonly needed functionality
4021 for handling the random seed file.
4023 Use the random seed file in some applications that previously did not:
4025 dsaparam -genkey (which also ignored its '-rand' option),
4028 x509 (when signing).
4029 Except on systems with /dev/urandom, it is crucial to have a random
4030 seed file at least for key creation, DSA signing, and for DH exchanges;
4031 for RSA signatures we could do without one.
4033 gendh and gendsa (unlike genrsa) used to read only the first byte
4034 of each file listed in the '-rand' option. The function as previously
4035 found in genrsa is now in app_rand.c and is used by all programs
4036 that support '-rand'.
4039 *) In RAND_write_file, use mode 0600 for creating files;
4040 don't just chmod when it may be too late.
4043 *) Report an error from X509_STORE_load_locations
4044 when X509_LOOKUP_load_file or X509_LOOKUP_add_dir failed.
4047 *) New function ASN1_mbstring_copy() this copies a string in either
4048 ASCII, Unicode, Universal (4 bytes per character) or UTF8 format
4049 into an ASN1_STRING type. A mask of permissible types is passed
4050 and it chooses the "minimal" type to use or an error if not type
4054 *) Add function equivalents to the various macros in asn1.h. The old
4055 macros are retained with an M_ prefix. Code inside the library can
4056 use the M_ macros. External code (including the openssl utility)
4057 should *NOT* in order to be "shared library friendly".
4060 *) Add various functions that can check a certificate's extensions
4061 to see if it usable for various purposes such as SSL client,
4062 server or S/MIME and CAs of these types. This is currently
4063 VERY EXPERIMENTAL but will ultimately be used for certificate chain
4064 verification. Also added a -purpose flag to x509 utility to
4065 print out all the purposes.
4068 *) Add a CRYPTO_EX_DATA to X509 certificate structure and associated
4072 *) New X509V3_{X509,CRL,REVOKED}_get_d2i() functions. These will search
4073 for, obtain and decode and extension and obtain its critical flag.
4074 This allows all the necessary extension code to be handled in a
4075 single function call.
4078 *) RC4 tune-up featuring 30-40% performance improvement on most RISC
4079 platforms. See crypto/rc4/rc4_enc.c for further details.
4082 *) New -noout option to asn1parse. This causes no output to be produced
4083 its main use is when combined with -strparse and -out to extract data
4084 from a file (which may not be in ASN.1 format).
4087 *) Fix for pkcs12 program. It was hashing an invalid certificate pointer
4088 when producing the local key id.
4089 [Richard Levitte <levitte@stacken.kth.se>]
4091 *) New option -dhparam in s_server. This allows a DH parameter file to be
4092 stated explicitly. If it is not stated then it tries the first server
4093 certificate file. The previous behaviour hard coded the filename
4097 *) Add -pubin and -pubout options to the rsa and dsa commands. These allow
4098 a public key to be input or output. For example:
4099 openssl rsa -in key.pem -pubout -out pubkey.pem
4100 Also added necessary DSA public key functions to handle this.
4103 *) Fix so PKCS7_dataVerify() doesn't crash if no certificates are contained
4104 in the message. This was handled by allowing
4105 X509_find_by_issuer_and_serial() to tolerate a NULL passed to it.
4106 [Steve Henson, reported by Sampo Kellomaki <sampo@mail.neuronio.pt>]
4108 *) Fix for bug in d2i_ASN1_bytes(): other ASN1 functions add an extra null
4109 to the end of the strings whereas this didn't. This would cause problems
4110 if strings read with d2i_ASN1_bytes() were later modified.
4111 [Steve Henson, reported by Arne Ansper <arne@ats.cyber.ee>]
4113 *) Fix for base64 decode bug. When a base64 bio reads only one line of
4114 data and it contains EOF it will end up returning an error. This is
4115 caused by input 46 bytes long. The cause is due to the way base64
4116 BIOs find the start of base64 encoded data. They do this by trying a
4117 trial decode on each line until they find one that works. When they
4118 do a flag is set and it starts again knowing it can pass all the
4119 data directly through the decoder. Unfortunately it doesn't reset
4120 the context it uses. This means that if EOF is reached an attempt
4121 is made to pass two EOFs through the context and this causes the
4122 resulting error. This can also cause other problems as well. As is
4123 usual with these problems it takes *ages* to find and the fix is
4124 trivial: move one line.
4125 [Steve Henson, reported by ian@uns.ns.ac.yu (Ivan Nejgebauer) ]
4127 *) Ugly workaround to get s_client and s_server working under Windows. The
4128 old code wouldn't work because it needed to select() on sockets and the
4129 tty (for keypresses and to see if data could be written). Win32 only
4130 supports select() on sockets so we select() with a 1s timeout on the
4131 sockets and then see if any characters are waiting to be read, if none
4132 are present then we retry, we also assume we can always write data to
4133 the tty. This isn't nice because the code then blocks until we've
4134 received a complete line of data and it is effectively polling the
4135 keyboard at 1s intervals: however it's quite a bit better than not
4136 working at all :-) A dedicated Windows application might handle this
4137 with an event loop for example.
4140 *) Enhance RSA_METHOD structure. Now there are two extra methods, rsa_sign
4141 and rsa_verify. When the RSA_FLAGS_SIGN_VER option is set these functions
4142 will be called when RSA_sign() and RSA_verify() are used. This is useful
4143 if rsa_pub_dec() and rsa_priv_enc() equivalents are not available.
4144 For this to work properly RSA_public_decrypt() and RSA_private_encrypt()
4145 should *not* be used: RSA_sign() and RSA_verify() must be used instead.
4146 This necessitated the support of an extra signature type NID_md5_sha1
4147 for SSL signatures and modifications to the SSL library to use it instead
4148 of calling RSA_public_decrypt() and RSA_private_encrypt().
4151 *) Add new -verify -CAfile and -CApath options to the crl program, these
4152 will lookup a CRL issuers certificate and verify the signature in a
4153 similar way to the verify program. Tidy up the crl program so it
4154 no longer accesses structures directly. Make the ASN1 CRL parsing a bit
4155 less strict. It will now permit CRL extensions even if it is not
4156 a V2 CRL: this will allow it to tolerate some broken CRLs.
4159 *) Initialize all non-automatic variables each time one of the openssl
4160 sub-programs is started (this is necessary as they may be started
4161 multiple times from the "OpenSSL>" prompt).
4162 [Lennart Bang, Bodo Moeller]
4164 *) Preliminary compilation option RSA_NULL which disables RSA crypto without
4165 removing all other RSA functionality (this is what NO_RSA does). This
4166 is so (for example) those in the US can disable those operations covered
4167 by the RSA patent while allowing storage and parsing of RSA keys and RSA
4171 *) Non-copying interface to BIO pairs.
4172 (still largely untested)
4175 *) New function ANS1_tag2str() to convert an ASN1 tag to a descriptive
4176 ASCII string. This was handled independently in various places before.
4179 *) New functions UTF8_getc() and UTF8_putc() that parse and generate
4180 UTF8 strings a character at a time.
4183 *) Use client_version from client hello to select the protocol
4184 (s23_srvr.c) and for RSA client key exchange verification
4185 (s3_srvr.c), as required by the SSL 3.0/TLS 1.0 specifications.
4188 *) Add various utility functions to handle SPKACs, these were previously
4189 handled by poking round in the structure internals. Added new function
4190 NETSCAPE_SPKI_print() to print out SPKAC and a new utility 'spkac' to
4191 print, verify and generate SPKACs. Based on an original idea from
4192 Massimiliano Pala <madwolf@comune.modena.it> but extensively modified.
4195 *) RIPEMD160 is operational on all platforms and is back in 'make test'.
4198 *) Allow the config file extension section to be overwritten on the
4199 command line. Based on an original idea from Massimiliano Pala
4200 <madwolf@comune.modena.it>. The new option is called -extensions
4201 and can be applied to ca, req and x509. Also -reqexts to override
4202 the request extensions in req and -crlexts to override the crl extensions
4206 *) Add new feature to the SPKAC handling in ca. Now you can include
4207 the same field multiple times by preceding it by "XXXX." for example:
4210 this is the same syntax as used in the req config file.
4213 *) Allow certificate extensions to be added to certificate requests. These
4214 are specified in a 'req_extensions' option of the req section of the
4215 config file. They can be printed out with the -text option to req but
4216 are otherwise ignored at present.
4219 *) Fix a horrible bug in enc_read() in crypto/evp/bio_enc.c: if the first
4220 data read consists of only the final block it would not decrypted because
4221 EVP_CipherUpdate() would correctly report zero bytes had been decrypted.
4222 A misplaced 'break' also meant the decrypted final block might not be
4223 copied until the next read.
4226 *) Initial support for DH_METHOD. Again based on RSA_METHOD. Also added
4227 a few extra parameters to the DH structure: these will be useful if
4228 for example we want the value of 'q' or implement X9.42 DH.
4231 *) Initial support for DSA_METHOD. This is based on the RSA_METHOD and
4232 provides hooks that allow the default DSA functions or functions on a
4233 "per key" basis to be replaced. This allows hardware acceleration and
4234 hardware key storage to be handled without major modification to the
4235 library. Also added low level modexp hooks and CRYPTO_EX structure and
4236 associated functions.
4239 *) Add a new flag to memory BIOs, BIO_FLAG_MEM_RDONLY. This marks the BIO
4240 as "read only": it can't be written to and the buffer it points to will
4241 not be freed. Reading from a read only BIO is much more efficient than
4242 a normal memory BIO. This was added because there are several times when
4243 an area of memory needs to be read from a BIO. The previous method was
4244 to create a memory BIO and write the data to it, this results in two
4245 copies of the data and an O(n^2) reading algorithm. There is a new
4246 function BIO_new_mem_buf() which creates a read only memory BIO from
4247 an area of memory. Also modified the PKCS#7 routines to use read only
4251 *) Bugfix: ssl23_get_client_hello did not work properly when called in
4252 state SSL23_ST_SR_CLNT_HELLO_B, i.e. when the first 7 bytes of
4253 a SSLv2-compatible client hello for SSLv3 or TLSv1 could be read,
4254 but a retry condition occured while trying to read the rest.
4257 *) The PKCS7_ENC_CONTENT_new() function was setting the content type as
4258 NID_pkcs7_encrypted by default: this was wrong since this should almost
4259 always be NID_pkcs7_data. Also modified the PKCS7_set_type() to handle
4260 the encrypted data type: this is a more sensible place to put it and it
4261 allows the PKCS#12 code to be tidied up that duplicated this
4265 *) Changed obj_dat.pl script so it takes its input and output files on
4266 the command line. This should avoid shell escape redirection problems
4270 *) Initial support for certificate extension requests, these are included
4271 in things like Xenroll certificate requests. Included functions to allow
4272 extensions to be obtained and added.
4275 *) -crlf option to s_client and s_server for sending newlines as
4276 CRLF (as required by many protocols).
4279 Changes between 0.9.3a and 0.9.4 [09 Aug 1999]
4281 *) Install libRSAglue.a when OpenSSL is built with RSAref.
4282 [Ralf S. Engelschall]
4284 *) A few more ``#ifndef NO_FP_API / #endif'' pairs for consistency.
4285 [Andrija Antonijevic <TheAntony2@bigfoot.com>]
4287 *) Fix -startdate and -enddate (which was missing) arguments to 'ca'
4291 *) New function DSA_dup_DH, which duplicates DSA parameters/keys as
4292 DH parameters/keys (q is lost during that conversion, but the resulting
4293 DH parameters contain its length).
4295 For 1024-bit p, DSA_generate_parameters followed by DSA_dup_DH is
4296 much faster than DH_generate_parameters (which creates parameters
4297 where p = 2*q + 1), and also the smaller q makes DH computations
4298 much more efficient (160-bit exponentiation instead of 1024-bit
4299 exponentiation); so this provides a convenient way to support DHE
4300 ciphersuites in SSL/TLS servers (see ssl/ssltest.c). It is of
4301 utter importance to use
4302 SSL_CTX_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
4304 SSL_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
4305 when such DH parameters are used, because otherwise small subgroup
4306 attacks may become possible!
4309 *) Avoid memory leak in i2d_DHparams.
4312 *) Allow the -k option to be used more than once in the enc program:
4313 this allows the same encrypted message to be read by multiple recipients.
4316 *) New function OBJ_obj2txt(buf, buf_len, a, no_name), this converts
4317 an ASN1_OBJECT to a text string. If the "no_name" parameter is set then
4318 it will always use the numerical form of the OID, even if it has a short
4322 *) Added an extra RSA flag: RSA_FLAG_EXT_PKEY. Previously the rsa_mod_exp
4323 method only got called if p,q,dmp1,dmq1,iqmp components were present,
4324 otherwise bn_mod_exp was called. In the case of hardware keys for example
4325 no private key components need be present and it might store extra data
4326 in the RSA structure, which cannot be accessed from bn_mod_exp.
4327 By setting RSA_FLAG_EXT_PKEY rsa_mod_exp will always be called for
4328 private key operations.
4331 *) Added support for SPARC Linux.
4334 *) pem_password_cb function type incompatibly changed from
4335 typedef int pem_password_cb(char *buf, int size, int rwflag);
4337 ....(char *buf, int size, int rwflag, void *userdata);
4338 so that applications can pass data to their callbacks:
4339 The PEM[_ASN1]_{read,write}... functions and macros now take an
4340 additional void * argument, which is just handed through whenever
4341 the password callback is called.
4342 [Damien Miller <dmiller@ilogic.com.au>; tiny changes by Bodo Moeller]
4344 New function SSL_CTX_set_default_passwd_cb_userdata.
4346 Compatibility note: As many C implementations push function arguments
4347 onto the stack in reverse order, the new library version is likely to
4348 interoperate with programs that have been compiled with the old
4349 pem_password_cb definition (PEM_whatever takes some data that
4350 happens to be on the stack as its last argument, and the callback
4351 just ignores this garbage); but there is no guarantee whatsoever that
4354 *) The -DPLATFORM="\"$(PLATFORM)\"" definition and the similar -DCFLAGS=...
4355 (both in crypto/Makefile.ssl for use by crypto/cversion.c) caused
4356 problems not only on Windows, but also on some Unix platforms.
4357 To avoid problematic command lines, these definitions are now in an
4358 auto-generated file crypto/buildinf.h (created by crypto/Makefile.ssl
4359 for standard "make" builds, by util/mk1mf.pl for "mk1mf" builds).
4362 *) MIPS III/IV assembler module is reimplemented.
4365 *) More DES library cleanups: remove references to srand/rand and
4366 delete an unused file.
4369 *) Add support for the the free Netwide assembler (NASM) under Win32,
4370 since not many people have MASM (ml) and it can be hard to obtain.
4371 This is currently experimental but it seems to work OK and pass all
4372 the tests. Check out INSTALL.W32 for info.
4375 *) Fix memory leaks in s3_clnt.c: All non-anonymous SSL3/TLS1 connections
4376 without temporary keys kept an extra copy of the server key,
4377 and connections with temporary keys did not free everything in case
4381 *) New function RSA_check_key and new openssl rsa option -check
4382 for verifying the consistency of RSA keys.
4383 [Ulf Moeller, Bodo Moeller]
4385 *) Various changes to make Win32 compile work:
4386 1. Casts to avoid "loss of data" warnings in p5_crpt2.c
4387 2. Change unsigned int to int in b_dump.c to avoid "signed/unsigned
4388 comparison" warnings.
4389 3. Add sk_<TYPE>_sort to DEF file generator and do make update.
4392 *) Add a debugging option to PKCS#5 v2 key generation function: when
4393 you #define DEBUG_PKCS5V2 passwords, salts, iteration counts and
4394 derived keys are printed to stderr.
4397 *) Copy the flags in ASN1_STRING_dup().
4398 [Roman E. Pavlov <pre@mo.msk.ru>]
4400 *) The x509 application mishandled signing requests containing DSA
4401 keys when the signing key was also DSA and the parameters didn't match.
4403 It was supposed to omit the parameters when they matched the signing key:
4404 the verifying software was then supposed to automatically use the CA's
4405 parameters if they were absent from the end user certificate.
4407 Omitting parameters is no longer recommended. The test was also
4408 the wrong way round! This was probably due to unusual behaviour in
4409 EVP_cmp_parameters() which returns 1 if the parameters match.
4410 This meant that parameters were omitted when they *didn't* match and
4411 the certificate was useless. Certificates signed with 'ca' didn't have
4413 [Steve Henson, reported by Doug Erickson <Doug.Erickson@Part.NET>]
4415 *) Memory leak checking (-DCRYPTO_MDEBUG) had some problems.
4416 The interface is as follows:
4417 Applications can use
4418 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON) aka MemCheck_start(),
4419 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_OFF) aka MemCheck_stop();
4420 "off" is now the default.
4421 The library internally uses
4422 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_DISABLE) aka MemCheck_off(),
4423 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ENABLE) aka MemCheck_on()
4424 to disable memory-checking temporarily.
4426 Some inconsistent states that previously were possible (and were
4427 even the default) are now avoided.
4429 -DCRYPTO_MDEBUG_TIME is new and additionally stores the current time
4430 with each memory chunk allocated; this is occasionally more helpful
4431 than just having a counter.
4433 -DCRYPTO_MDEBUG_THREAD is also new and adds the thread ID.
4435 -DCRYPTO_MDEBUG_ALL enables all of the above, plus any future
4439 *) Introduce "mode" for SSL structures (with defaults in SSL_CTX),
4440 which largely parallels "options", but is for changing API behaviour,
4441 whereas "options" are about protocol behaviour.
4442 Initial "mode" flags are:
4444 SSL_MODE_ENABLE_PARTIAL_WRITE Allow SSL_write to report success when
4445 a single record has been written.
4446 SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER Don't insist that SSL_write
4447 retries use the same buffer location.
4448 (But all of the contents must be
4452 *) Bugfix: SSL_set_options ignored its parameter, only SSL_CTX_set_options
4455 *) Fix problems with no-hmac etc.
4456 [Ulf Möller, pointed out by Brian Wellington <bwelling@tislabs.com>]
4458 *) New functions RSA_get_default_method(), RSA_set_method() and
4459 RSA_get_method(). These allows replacement of RSA_METHODs without having
4460 to mess around with the internals of an RSA structure.
4463 *) Fix memory leaks in DSA_do_sign and DSA_is_prime.
4464 Also really enable memory leak checks in openssl.c and in some
4466 [Chad C. Mulligan, Bodo Moeller]
4468 *) Fix a bug in d2i_ASN1_INTEGER() and i2d_ASN1_INTEGER() which can mess
4469 up the length of negative integers. This has now been simplified to just
4470 store the length when it is first determined and use it later, rather
4471 than trying to keep track of where data is copied and updating it to
4473 [Steve Henson, reported by Brien Wheeler
4474 <bwheeler@authentica-security.com>]
4476 *) Add a new function PKCS7_signatureVerify. This allows the verification
4477 of a PKCS#7 signature but with the signing certificate passed to the
4478 function itself. This contrasts with PKCS7_dataVerify which assumes the
4479 certificate is present in the PKCS#7 structure. This isn't always the
4480 case: certificates can be omitted from a PKCS#7 structure and be
4481 distributed by "out of band" means (such as a certificate database).
4484 *) Complete the PEM_* macros with DECLARE_PEM versions to replace the
4485 function prototypes in pem.h, also change util/mkdef.pl to add the
4486 necessary function names.
4489 *) mk1mf.pl (used by Windows builds) did not properly read the
4490 options set by Configure in the top level Makefile, and Configure
4491 was not even able to write more than one option correctly.
4492 Fixed, now "no-idea no-rc5 -DCRYPTO_MDEBUG" etc. works as intended.
4495 *) New functions CONF_load_bio() and CONF_load_fp() to allow a config
4496 file to be loaded from a BIO or FILE pointer. The BIO version will
4497 for example allow memory BIOs to contain config info.
4500 *) New function "CRYPTO_num_locks" that returns CRYPTO_NUM_LOCKS.
4501 Whoever hopes to achieve shared-library compatibility across versions
4502 must use this, not the compile-time macro.
4503 (Exercise 0.9.4: Which is the minimum library version required by
4505 Note: All this applies only to multi-threaded programs, others don't
4509 *) Add missing case to s3_clnt.c state machine -- one of the new SSL tests
4510 through a BIO pair triggered the default case, i.e.
4511 SSLerr(...,SSL_R_UNKNOWN_STATE).
4514 *) New "BIO pair" concept (crypto/bio/bss_bio.c) so that applications
4515 can use the SSL library even if none of the specific BIOs is
4519 *) Fix a bug in i2d_DSAPublicKey() which meant it returned the wrong value
4520 for the encoded length.
4521 [Jeon KyoungHo <khjeon@sds.samsung.co.kr>]
4523 *) Add initial documentation of the X509V3 functions.
4526 *) Add a new pair of functions PEM_write_PKCS8PrivateKey() and
4527 PEM_write_bio_PKCS8PrivateKey() that are equivalent to
4528 PEM_write_PrivateKey() and PEM_write_bio_PrivateKey() but use the more
4529 secure PKCS#8 private key format with a high iteration count.
4532 *) Fix determination of Perl interpreter: A perl or perl5
4533 _directory_ in $PATH was also accepted as the interpreter.
4534 [Ralf S. Engelschall]
4536 *) Fix demos/sign/sign.c: well there wasn't anything strictly speaking
4537 wrong with it but it was very old and did things like calling
4538 PEM_ASN1_read() directly and used MD5 for the hash not to mention some
4542 *) Fix demos/selfsign.c: it used obsolete and deleted functions, changed
4543 to use the new extension code.
4546 *) Implement the PEM_read/PEM_write functions in crypto/pem/pem_all.c
4547 with macros. This should make it easier to change their form, add extra
4548 arguments etc. Fix a few PEM prototypes which didn't have cipher as a
4552 *) Add to configuration table a new entry that can specify an alternative
4553 name for unistd.h (for pre-POSIX systems); we need this for NeXTstep,
4554 according to Mark Crispin <MRC@Panda.COM>.
4558 *) DES CBC did not update the IV. Weird.
4561 des_cbc_encrypt does not update the IV, but des_ncbc_encrypt does.
4562 Changing the behaviour of the former might break existing programs --
4563 where IV updating is needed, des_ncbc_encrypt can be used.
4566 *) When bntest is run from "make test" it drives bc to check its
4567 calculations, as well as internally checking them. If an internal check
4568 fails, it needs to cause bc to give a non-zero result or make test carries
4569 on without noticing the failure. Fixed.
4572 *) DES library cleanups.
4575 *) Add support for PKCS#5 v2.0 PBE algorithms. This will permit PKCS#8 to be
4576 used with any cipher unlike PKCS#5 v1.5 which can at most handle 64 bit
4577 ciphers. NOTE: although the key derivation function has been verified
4578 against some published test vectors it has not been extensively tested
4579 yet. Added a -v2 "cipher" option to pkcs8 application to allow the use
4583 *) Instead of "mkdir -p", which is not fully portable, use new
4584 Perl script "util/mkdir-p.pl".
4587 *) Rewrite the way password based encryption (PBE) is handled. It used to
4588 assume that the ASN1 AlgorithmIdentifier parameter was a PBEParameter
4589 structure. This was true for the PKCS#5 v1.5 and PKCS#12 PBE algorithms
4590 but doesn't apply to PKCS#5 v2.0 where it can be something else. Now
4591 the 'parameter' field of the AlgorithmIdentifier is passed to the
4592 underlying key generation function so it must do its own ASN1 parsing.
4593 This has also changed the EVP_PBE_CipherInit() function which now has a
4594 'parameter' argument instead of literal salt and iteration count values
4595 and the function EVP_PBE_ALGOR_CipherInit() has been deleted.
4598 *) Support for PKCS#5 v1.5 compatible password based encryption algorithms
4599 and PKCS#8 functionality. New 'pkcs8' application linked to openssl.
4600 Needed to change the PEM_STRING_EVP_PKEY value which was just "PRIVATE
4601 KEY" because this clashed with PKCS#8 unencrypted string. Since this
4602 value was just used as a "magic string" and not used directly its
4603 value doesn't matter.
4606 *) Introduce some semblance of const correctness to BN. Shame C doesn't
4610 *) "linux-sparc64" configuration (ultrapenguin).
4611 [Ray Miller <ray.miller@oucs.ox.ac.uk>]
4612 "linux-sparc" configuration.
4613 [Christian Forster <fo@hawo.stw.uni-erlangen.de>]
4615 *) config now generates no-xxx options for missing ciphers.
4618 *) Support the EBCDIC character set (work in progress).
4619 File ebcdic.c not yet included because it has a different license.
4620 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
4622 *) Support BS2000/OSD-POSIX.
4623 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
4625 *) Make callbacks for key generation use void * instead of char *.
4628 *) Make S/MIME samples compile (not yet tested).
4631 *) Additional typesafe stacks.
4634 *) New configuration variants "bsdi-elf-gcc" (BSD/OS 4.x).
4638 Changes between 0.9.3 and 0.9.3a [29 May 1999]
4640 *) New configuration variant "sco5-gcc".
4642 *) Updated some demos.
4643 [Sean O Riordain, Wade Scholine]
4645 *) Add missing BIO_free at exit of pkcs12 application.
4648 *) Fix memory leak in conf.c.
4651 *) Updates for Win32 to assembler version of MD5.
4654 *) Set #! path to perl in apps/der_chop to where we found it
4655 instead of using a fixed path.
4658 *) SHA library changes for irix64-mips4-cc.
4661 *) Improvements for VMS support.
4665 Changes between 0.9.2b and 0.9.3 [24 May 1999]
4667 *) Bignum library bug fix. IRIX 6 passes "make test" now!
4668 This also avoids the problems with SC4.2 and unpatched SC5.
4669 [Andy Polyakov <appro@fy.chalmers.se>]
4671 *) New functions sk_num, sk_value and sk_set to replace the previous macros.
4672 These are required because of the typesafe stack would otherwise break
4673 existing code. If old code used a structure member which used to be STACK
4674 and is now STACK_OF (for example cert in a PKCS7_SIGNED structure) with
4675 sk_num or sk_value it would produce an error because the num, data members
4676 are not present in STACK_OF. Now it just produces a warning. sk_set
4677 replaces the old method of assigning a value to sk_value
4678 (e.g. sk_value(x, i) = y) which the library used in a few cases. Any code
4679 that does this will no longer work (and should use sk_set instead) but
4680 this could be regarded as a "questionable" behaviour anyway.
4683 *) Fix most of the other PKCS#7 bugs. The "experimental" code can now
4684 correctly handle encrypted S/MIME data.
4687 *) Change type of various DES function arguments from des_cblock
4688 (which means, in function argument declarations, pointer to char)
4689 to des_cblock * (meaning pointer to array with 8 char elements),
4690 which allows the compiler to do more typechecking; it was like
4691 that back in SSLeay, but with lots of ugly casts.
4693 Introduce new type const_des_cblock.
4696 *) Reorganise the PKCS#7 library and get rid of some of the more obvious
4697 problems: find RecipientInfo structure that matches recipient certificate
4698 and initialise the ASN1 structures properly based on passed cipher.
4701 *) Belatedly make the BN tests actually check the results.
4704 *) Fix the encoding and decoding of negative ASN1 INTEGERS and conversion
4705 to and from BNs: it was completely broken. New compilation option
4706 NEG_PUBKEY_BUG to allow for some broken certificates that encode public
4707 key elements as negative integers.
4710 *) Reorganize and speed up MD5.
4711 [Andy Polyakov <appro@fy.chalmers.se>]
4714 [Richard Levitte <richard@levitte.org>]
4716 *) New option -out to asn1parse to allow the parsed structure to be
4717 output to a file. This is most useful when combined with the -strparse
4718 option to examine the output of things like OCTET STRINGS.
4721 *) Make SSL library a little more fool-proof by not requiring any longer
4722 that SSL_set_{accept,connect}_state be called before
4723 SSL_{accept,connect} may be used (SSL_set_..._state is omitted
4724 in many applications because usually everything *appeared* to work as
4725 intended anyway -- now it really works as intended).
4728 *) Move openssl.cnf out of lib/.
4731 *) Fix various things to let OpenSSL even pass ``egcc -pipe -O2 -Wall
4732 -Wshadow -Wpointer-arith -Wcast-align -Wmissing-prototypes
4733 -Wmissing-declarations -Wnested-externs -Winline'' with EGCS 1.1.2+
4734 [Ralf S. Engelschall]
4736 *) Various fixes to the EVP and PKCS#7 code. It may now be able to
4737 handle PKCS#7 enveloped data properly.
4738 [Sebastian Akerman <sak@parallelconsulting.com>, modified by Steve]
4740 *) Create a duplicate of the SSL_CTX's CERT in SSL_new instead of
4741 copying pointers. The cert_st handling is changed by this in
4742 various ways (and thus what used to be known as ctx->default_cert
4743 is now called ctx->cert, since we don't resort to s->ctx->[default_]cert
4744 any longer when s->cert does not give us what we need).
4745 ssl_cert_instantiate becomes obsolete by this change.
4746 As soon as we've got the new code right (possibly it already is?),
4747 we have solved a couple of bugs of the earlier code where s->cert
4748 was used as if it could not have been shared with other SSL structures.
4750 Note that using the SSL API in certain dirty ways now will result
4751 in different behaviour than observed with earlier library versions:
4752 Changing settings for an SSL_CTX *ctx after having done s = SSL_new(ctx)
4753 does not influence s as it used to.
4755 In order to clean up things more thoroughly, inside SSL_SESSION
4756 we don't use CERT any longer, but a new structure SESS_CERT
4757 that holds per-session data (if available); currently, this is
4758 the peer's certificate chain and, for clients, the server's certificate
4759 and temporary key. CERT holds only those values that can have
4760 meaningful defaults in an SSL_CTX.
4763 *) New function X509V3_EXT_i2d() to create an X509_EXTENSION structure
4764 from the internal representation. Various PKCS#7 fixes: remove some
4765 evil casts and set the enc_dig_alg field properly based on the signing
4769 *) Allow PKCS#12 password to be set from the command line or the
4770 environment. Let 'ca' get its config file name from the environment
4771 variables "OPENSSL_CONF" or "SSLEAY_CONF" (for consistency with 'req'
4775 *) Allow certificate policies extension to use an IA5STRING for the
4776 organization field. This is contrary to the PKIX definition but
4777 VeriSign uses it and IE5 only recognises this form. Document 'x509'
4781 *) Add PEDANTIC compiler flag to allow compilation with gcc -pedantic,
4782 without disallowing inline assembler and the like for non-pedantic builds.
4785 *) Support Borland C++ builder.
4786 [Janez Jere <jj@void.si>, modified by Ulf Möller]
4791 *) SHA-1 cleanups and performance enhancements.
4792 [Andy Polyakov <appro@fy.chalmers.se>]
4794 *) Sparc v8plus assembler for the bignum library.
4795 [Andy Polyakov <appro@fy.chalmers.se>]
4797 *) Accept any -xxx and +xxx compiler options in Configure.
4800 *) Update HPUX configuration.
4803 *) Add missing sk_<type>_unshift() function to safestack.h
4804 [Ralf S. Engelschall]
4806 *) New function SSL_CTX_use_certificate_chain_file that sets the
4807 "extra_cert"s in addition to the certificate. (This makes sense
4808 only for "PEM" format files, as chains as a whole are not
4812 *) Support verify_depth from the SSL API.
4813 x509_vfy.c had what can be considered an off-by-one-error:
4814 Its depth (which was not part of the external interface)
4815 was actually counting the number of certificates in a chain;
4816 now it really counts the depth.
4819 *) Bugfix in crypto/x509/x509_cmp.c: The SSLerr macro was used
4820 instead of X509err, which often resulted in confusing error
4821 messages since the error codes are not globally unique
4822 (e.g. an alleged error in ssl3_accept when a certificate
4823 didn't match the private key).
4825 *) New function SSL_CTX_set_session_id_context that allows to set a default
4826 value (so that you don't need SSL_set_session_id_context for each
4827 connection using the SSL_CTX).
4830 *) OAEP decoding bug fix.
4833 *) Support INSTALL_PREFIX for package builders, as proposed by
4837 *) New Configure options "threads" and "no-threads". For systems
4838 where the proper compiler options are known (currently Solaris
4839 and Linux), "threads" is the default.
4842 *) New script util/mklink.pl as a faster substitute for util/mklink.sh.
4845 *) Install various scripts to $(OPENSSLDIR)/misc, not to
4846 $(INSTALLTOP)/bin -- they shouldn't clutter directories
4847 such as /usr/local/bin.
4850 *) "make linux-shared" to build shared libraries.
4851 [Niels Poppe <niels@netbox.org>]
4853 *) New Configure option no-<cipher> (rsa, idea, rc5, ...).
4856 *) Add the PKCS#12 API documentation to openssl.txt. Preliminary support for
4857 extension adding in x509 utility.
4860 *) Remove NOPROTO sections and error code comments.
4863 *) Partial rewrite of the DEF file generator to now parse the ANSI
4867 *) New Configure options --prefix=DIR and --openssldir=DIR.
4870 *) Complete rewrite of the error code script(s). It is all now handled
4871 by one script at the top level which handles error code gathering,
4872 header rewriting and C source file generation. It should be much better
4873 than the old method: it now uses a modified version of Ulf's parser to
4874 read the ANSI prototypes in all header files (thus the old K&R definitions
4875 aren't needed for error creation any more) and do a better job of
4876 translating function codes into names. The old 'ASN1 error code imbedded
4877 in a comment' is no longer necessary and it doesn't use .err files which
4878 have now been deleted. Also the error code call doesn't have to appear all
4879 on one line (which resulted in some large lines...).
4882 *) Change #include filenames from <foo.h> to <openssl/foo.h>.
4885 *) Change behaviour of ssl2_read when facing length-0 packets: Don't return
4886 0 (which usually indicates a closed connection), but continue reading.
4889 *) Fix some race conditions.
4892 *) Add support for CRL distribution points extension. Add Certificate
4893 Policies and CRL distribution points documentation.
4896 *) Move the autogenerated header file parts to crypto/opensslconf.h.
4899 *) Fix new 56-bit DES export ciphersuites: they were using 7 bytes instead of
4900 8 of keying material. Merlin has also confirmed interop with this fix
4901 between OpenSSL and Baltimore C/SSL 2.0 and J/SSL 2.0.
4902 [Merlin Hughes <merlin@baltimore.ie>]
4904 *) Fix lots of warnings.
4905 [Richard Levitte <levitte@stacken.kth.se>]
4907 *) In add_cert_dir() in crypto/x509/by_dir.c, break out of the loop if
4908 the directory spec didn't end with a LIST_SEPARATOR_CHAR.
4909 [Richard Levitte <levitte@stacken.kth.se>]
4911 *) Fix problems with sizeof(long) == 8.
4912 [Andy Polyakov <appro@fy.chalmers.se>]
4914 *) Change functions to ANSI C.
4917 *) Fix typos in error codes.
4918 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>, Ulf Möller]
4920 *) Remove defunct assembler files from Configure.
4923 *) SPARC v8 assembler BIGNUM implementation.
4924 [Andy Polyakov <appro@fy.chalmers.se>]
4926 *) Support for Certificate Policies extension: both print and set.
4927 Various additions to support the r2i method this uses.
4930 *) A lot of constification, and fix a bug in X509_NAME_oneline() that could
4931 return a const string when you are expecting an allocated buffer.
4934 *) Add support for ASN1 types UTF8String and VISIBLESTRING, also the CHOICE
4935 types DirectoryString and DisplayText.
4938 *) Add code to allow r2i extensions to access the configuration database,
4939 add an LHASH database driver and add several ctx helper functions.
4942 *) Fix an evil bug in bn_expand2() which caused various BN functions to
4943 fail when they extended the size of a BIGNUM.
4946 *) Various utility functions to handle SXNet extension. Modify mkdef.pl to
4947 support typesafe stack.
4950 *) Fix typo in SSL_[gs]et_options().
4951 [Nils Frostberg <nils@medcom.se>]
4953 *) Delete various functions and files that belonged to the (now obsolete)
4954 old X509V3 handling code.
4957 *) New Configure option "rsaref".
4960 *) Don't auto-generate pem.h.
4963 *) Introduce type-safe ASN.1 SETs.
4966 *) Convert various additional casted stacks to type-safe STACK_OF() variants.
4967 [Ben Laurie, Ralf S. Engelschall, Steve Henson]
4969 *) Introduce type-safe STACKs. This will almost certainly break lots of code
4970 that links with OpenSSL (well at least cause lots of warnings), but fear
4971 not: the conversion is trivial, and it eliminates loads of evil casts. A
4972 few STACKed things have been converted already. Feel free to convert more.
4973 In the fullness of time, I'll do away with the STACK type altogether.
4976 *) Add `openssl ca -revoke <certfile>' facility which revokes a certificate
4977 specified in <certfile> by updating the entry in the index.txt file.
4978 This way one no longer has to edit the index.txt file manually for
4979 revoking a certificate. The -revoke option does the gory details now.
4980 [Massimiliano Pala <madwolf@openca.org>, Ralf S. Engelschall]
4982 *) Fix `openssl crl -noout -text' combination where `-noout' killed the
4983 `-text' option at all and this way the `-noout -text' combination was
4984 inconsistent in `openssl crl' with the friends in `openssl x509|rsa|dsa'.
4985 [Ralf S. Engelschall]
4987 *) Make sure a corresponding plain text error message exists for the
4988 X509_V_ERR_CERT_REVOKED/23 error number which can occur when a
4989 verify callback function determined that a certificate was revoked.
4990 [Ralf S. Engelschall]
4992 *) Bugfix: In test/testenc, don't test "openssl <cipher>" for
4993 ciphers that were excluded, e.g. by -DNO_IDEA. Also, test
4994 all available cipers including rc5, which was forgotten until now.
4995 In order to let the testing shell script know which algorithms
4996 are available, a new (up to now undocumented) command
4997 "openssl list-cipher-commands" is used.
5000 *) Bugfix: s_client occasionally would sleep in select() when
5001 it should have checked SSL_pending() first.
5004 *) New functions DSA_do_sign and DSA_do_verify to provide access to
5005 the raw DSA values prior to ASN.1 encoding.
5008 *) Tweaks to Configure
5009 [Niels Poppe <niels@netbox.org>]
5011 *) Add support for PKCS#5 v2.0 ASN1 PBES2 structures. No other support,
5015 *) New variables $(RANLIB) and $(PERL) in the Makefiles.
5018 *) New config option to avoid instructions that are illegal on the 80386.
5019 The default code is faster, but requires at least a 486.
5022 *) Got rid of old SSL2_CLIENT_VERSION (inconsistently used) and
5023 SSL2_SERVER_VERSION (not used at all) macros, which are now the
5024 same as SSL2_VERSION anyway.
5027 *) New "-showcerts" option for s_client.
5030 *) Still more PKCS#12 integration. Add pkcs12 application to openssl
5031 application. Various cleanups and fixes.
5034 *) More PKCS#12 integration. Add new pkcs12 directory with Makefile.ssl and
5035 modify error routines to work internally. Add error codes and PBE init
5036 to library startup routines.
5039 *) Further PKCS#12 integration. Added password based encryption, PKCS#8 and
5040 packing functions to asn1 and evp. Changed function names and error
5041 codes along the way.
5044 *) PKCS12 integration: and so it begins... First of several patches to
5045 slowly integrate PKCS#12 functionality into OpenSSL. Add PKCS#12
5046 objects to objects.h
5049 *) Add a new 'indent' option to some X509V3 extension code. Initial ASN1
5050 and display support for Thawte strong extranet extension.
5053 *) Add LinuxPPC support.
5054 [Jeff Dubrule <igor@pobox.org>]
5056 *) Get rid of redundant BN file bn_mulw.c, and rename bn_div64 to
5057 bn_div_words in alpha.s.
5058 [Hannes Reinecke <H.Reinecke@hw.ac.uk> and Ben Laurie]
5060 *) Make sure the RSA OAEP test is skipped under -DRSAref because
5061 OAEP isn't supported when OpenSSL is built with RSAref.
5062 [Ulf Moeller <ulf@fitug.de>]
5064 *) Move definitions of IS_SET/IS_SEQUENCE inside crypto/asn1/asn1.h
5065 so they no longer are missing under -DNOPROTO.
5066 [Soren S. Jorvang <soren@t.dk>]
5069 Changes between 0.9.1c and 0.9.2b [22 Mar 1999]
5071 *) Make SSL_get_peer_cert_chain() work in servers. Unfortunately, it still
5072 doesn't work when the session is reused. Coming soon!
5075 *) Fix a security hole, that allows sessions to be reused in the wrong
5076 context thus bypassing client cert protection! All software that uses
5077 client certs and session caches in multiple contexts NEEDS PATCHING to
5078 allow session reuse! A fuller solution is in the works.
5079 [Ben Laurie, problem pointed out by Holger Reif, Bodo Moeller (and ???)]
5081 *) Some more source tree cleanups (removed obsolete files
5082 crypto/bf/asm/bf586.pl, test/test.txt and crypto/sha/asm/f.s; changed
5083 permission on "config" script to be executable) and a fix for the INSTALL
5085 [Ulf Moeller <ulf@fitug.de>]
5087 *) Remove some legacy and erroneous uses of malloc, free instead of
5089 [Lennart Bang <lob@netstream.se>, with minor changes by Steve]
5091 *) Make rsa_oaep_test return non-zero on error.
5092 [Ulf Moeller <ulf@fitug.de>]
5094 *) Add support for native Solaris shared libraries. Configure
5095 solaris-sparc-sc4-pic, make, then run shlib/solaris-sc4.sh. It'd be nice
5096 if someone would make that last step automatic.
5097 [Matthias Loepfe <Matthias.Loepfe@AdNovum.CH>]
5099 *) ctx_size was not built with the right compiler during "make links". Fixed.
5102 *) Change the meaning of 'ALL' in the cipher list. It now means "everything
5103 except NULL ciphers". This means the default cipher list will no longer
5104 enable NULL ciphers. They need to be specifically enabled e.g. with
5105 the string "DEFAULT:eNULL".
5108 *) Fix to RSA private encryption routines: if p < q then it would
5109 occasionally produce an invalid result. This will only happen with
5110 externally generated keys because OpenSSL (and SSLeay) ensure p > q.
5113 *) Be less restrictive and allow also `perl util/perlpath.pl
5114 /path/to/bin/perl' in addition to `perl util/perlpath.pl /path/to/bin',
5115 because this way one can also use an interpreter named `perl5' (which is
5116 usually the name of Perl 5.xxx on platforms where an Perl 4.x is still
5117 installed as `perl').
5118 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
5120 *) Let util/clean-depend.pl work also with older Perl 5.00x versions.
5121 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
5123 *) Fix Makefile.org so CC,CFLAG etc are passed to 'make links' add
5124 advapi32.lib to Win32 build and change the pem test comparision
5125 to fc.exe (thanks to Ulrich Kroener <kroneru@yahoo.com> for the
5126 suggestion). Fix misplaced ASNI prototypes and declarations in evp.h
5127 and crypto/des/ede_cbcm_enc.c.
5130 *) DES quad checksum was broken on big-endian architectures. Fixed.
5133 *) Comment out two functions in bio.h that aren't implemented. Fix up the
5134 Win32 test batch file so it (might) work again. The Win32 test batch file
5135 is horrible: I feel ill....
5138 *) Move various #ifdefs around so NO_SYSLOG, NO_DIRENT etc are now selected
5139 in e_os.h. Audit of header files to check ANSI and non ANSI
5140 sections: 10 functions were absent from non ANSI section and not exported
5141 from Windows DLLs. Fixed up libeay.num for new functions.
5144 *) Make `openssl version' output lines consistent.
5145 [Ralf S. Engelschall]
5147 *) Fix Win32 symbol export lists for BIO functions: Added
5148 BIO_get_ex_new_index, BIO_get_ex_num, BIO_get_ex_data and BIO_set_ex_data
5149 to ms/libeay{16,32}.def.
5150 [Ralf S. Engelschall]
5152 *) Second round of fixing the OpenSSL perl/ stuff. It now at least compiled
5153 fine under Unix and passes some trivial tests I've now added. But the
5154 whole stuff is horribly incomplete, so a README.1ST with a disclaimer was
5155 added to make sure no one expects that this stuff really works in the
5156 OpenSSL 0.9.2 release. Additionally I've started to clean the XS sources
5157 up and fixed a few little bugs and inconsistencies in OpenSSL.{pm,xs} and
5159 [Ralf S. Engelschall]
5161 *) Fix the generation of two part addresses in perl.
5162 [Kenji Miyake <kenji@miyake.org>, integrated by Ben Laurie]
5164 *) Add config entry for Linux on MIPS.
5165 [John Tobey <jtobey@channel1.com>]
5167 *) Make links whenever Configure is run, unless we are on Windoze.
5170 *) Permit extensions to be added to CRLs using crl_section in openssl.cnf.
5171 Currently only issuerAltName and AuthorityKeyIdentifier make any sense
5175 *) Add a useful kludge to allow package maintainers to specify compiler and
5176 other platforms details on the command line without having to patch the
5177 Configure script everytime: One now can use ``perl Configure
5178 <id>:<details>'', i.e. platform ids are allowed to have details appended
5179 to them (seperated by colons). This is treated as there would be a static
5180 pre-configured entry in Configure's %table under key <id> with value
5181 <details> and ``perl Configure <id>'' is called. So, when you want to
5182 perform a quick test-compile under FreeBSD 3.1 with pgcc and without
5183 assembler stuff you can use ``perl Configure "FreeBSD-elf:pgcc:-O6:::"''
5184 now, which overrides the FreeBSD-elf entry on-the-fly.
5185 [Ralf S. Engelschall]
5187 *) Disable new TLS1 ciphersuites by default: they aren't official yet.
5190 *) Allow DSO flags like -fpic, -fPIC, -KPIC etc. to be specified
5191 on the `perl Configure ...' command line. This way one can compile
5192 OpenSSL libraries with Position Independent Code (PIC) which is needed
5193 for linking it into DSOs.
5194 [Ralf S. Engelschall]
5196 *) Remarkably, export ciphers were totally broken and no-one had noticed!
5200 *) Cleaned up the LICENSE document: The official contact for any license
5201 questions now is the OpenSSL core team under openssl-core@openssl.org.
5202 And add a paragraph about the dual-license situation to make sure people
5203 recognize that _BOTH_ the OpenSSL license _AND_ the SSLeay license apply
5204 to the OpenSSL toolkit.
5205 [Ralf S. Engelschall]
5207 *) General source tree makefile cleanups: Made `making xxx in yyy...'
5208 display consistent in the source tree and replaced `/bin/rm' by `rm'.
5209 Additonally cleaned up the `make links' target: Remove unnecessary
5210 semicolons, subsequent redundant removes, inline point.sh into mklink.sh
5211 to speed processing and no longer clutter the display with confusing
5212 stuff. Instead only the actually done links are displayed.
5213 [Ralf S. Engelschall]
5215 *) Permit null encryption ciphersuites, used for authentication only. It used
5216 to be necessary to set the preprocessor define SSL_ALLOW_ENULL to do this.
5217 It is now necessary to set SSL_FORBID_ENULL to prevent the use of null
5221 *) Add a bunch of fixes to the PKCS#7 stuff. It used to sometimes reorder
5222 signed attributes when verifying signatures (this would break them),
5223 the detached data encoding was wrong and public keys obtained using
5224 X509_get_pubkey() weren't freed.
5227 *) Add text documentation for the BUFFER functions. Also added a work around
5228 to a Win95 console bug. This was triggered by the password read stuff: the
5229 last character typed gets carried over to the next fread(). If you were
5230 generating a new cert request using 'req' for example then the last
5231 character of the passphrase would be CR which would then enter the first
5235 *) Added the new `Includes OpenSSL Cryptography Software' button as
5236 doc/openssl_button.{gif,html} which is similar in style to the old SSLeay
5237 button and can be used by applications based on OpenSSL to show the
5238 relationship to the OpenSSL project.
5239 [Ralf S. Engelschall]
5241 *) Remove confusing variables in function signatures in files
5242 ssl/ssl_lib.c and ssl/ssl.h.
5243 [Lennart Bong <lob@kulthea.stacken.kth.se>]
5245 *) Don't install bss_file.c under PREFIX/include/
5246 [Lennart Bong <lob@kulthea.stacken.kth.se>]
5248 *) Get the Win32 compile working again. Modify mkdef.pl so it can handle
5249 functions that return function pointers and has support for NT specific
5250 stuff. Fix mk1mf.pl and VC-32.pl to support NT differences also. Various
5251 #ifdef WIN32 and WINNTs sprinkled about the place and some changes from
5252 unsigned to signed types: this was killing the Win32 compile.
5255 *) Add new certificate file to stack functions,
5256 SSL_add_dir_cert_subjects_to_stack() and
5257 SSL_add_file_cert_subjects_to_stack(). These largely supplant
5258 SSL_load_client_CA_file(), and can be used to add multiple certs easily
5259 to a stack (usually this is then handed to SSL_CTX_set_client_CA_list()).
5260 This means that Apache-SSL and similar packages don't have to mess around
5261 to add as many CAs as they want to the preferred list.
5264 *) Experiment with doxygen documentation. Currently only partially applied to
5266 See http://www.stack.nl/~dimitri/doxygen/index.html, and run doxygen with
5267 openssl.doxy as the configuration file.
5270 *) Get rid of remaining C++-style comments which strict C compilers hate.
5271 [Ralf S. Engelschall, pointed out by Carlos Amengual]
5273 *) Changed BN_RECURSION in bn_mont.c to BN_RECURSION_MONT so it is not
5274 compiled in by default: it has problems with large keys.
5277 *) Add a bunch of SSL_xxx() functions for configuring the temporary RSA and
5278 DH private keys and/or callback functions which directly correspond to
5279 their SSL_CTX_xxx() counterparts but work on a per-connection basis. This
5280 is needed for applications which have to configure certificates on a
5281 per-connection basis (e.g. Apache+mod_ssl) instead of a per-context basis
5283 For the RSA certificate situation is makes no difference, but
5284 for the DSA certificate situation this fixes the "no shared cipher"
5285 problem where the OpenSSL cipher selection procedure failed because the
5286 temporary keys were not overtaken from the context and the API provided
5287 no way to reconfigure them.
5288 The new functions now let applications reconfigure the stuff and they
5289 are in detail: SSL_need_tmp_RSA, SSL_set_tmp_rsa, SSL_set_tmp_dh,
5290 SSL_set_tmp_rsa_callback and SSL_set_tmp_dh_callback. Additionally a new
5291 non-public-API function ssl_cert_instantiate() is used as a helper
5292 function and also to reduce code redundancy inside ssl_rsa.c.
5293 [Ralf S. Engelschall]
5295 *) Move s_server -dcert and -dkey options out of the undocumented feature
5296 area because they are useful for the DSA situation and should be
5297 recognized by the users.
5298 [Ralf S. Engelschall]
5300 *) Fix the cipher decision scheme for export ciphers: the export bits are
5301 *not* within SSL_MKEY_MASK or SSL_AUTH_MASK, they are within
5302 SSL_EXP_MASK. So, the original variable has to be used instead of the
5303 already masked variable.
5304 [Richard Levitte <levitte@stacken.kth.se>]
5306 *) Fix 'port' variable from `int' to `unsigned int' in crypto/bio/b_sock.c
5307 [Richard Levitte <levitte@stacken.kth.se>]
5309 *) Change type of another md_len variable in pk7_doit.c:PKCS7_dataFinal()
5310 from `int' to `unsigned int' because it's a length and initialized by
5311 EVP_DigestFinal() which expects an `unsigned int *'.
5312 [Richard Levitte <levitte@stacken.kth.se>]
5314 *) Don't hard-code path to Perl interpreter on shebang line of Configure
5315 script. Instead use the usual Shell->Perl transition trick.
5316 [Ralf S. Engelschall]
5318 *) Make `openssl x509 -noout -modulus' functional also for DSA certificates
5319 (in addition to RSA certificates) to match the behaviour of `openssl dsa
5320 -noout -modulus' as it's already the case for `openssl rsa -noout
5321 -modulus'. For RSA the -modulus is the real "modulus" while for DSA
5322 currently the public key is printed (a decision which was already done by
5323 `openssl dsa -modulus' in the past) which serves a similar purpose.
5324 Additionally the NO_RSA no longer completely removes the whole -modulus
5325 option; it now only avoids using the RSA stuff. Same applies to NO_DSA
5327 [Ralf S. Engelschall]
5329 *) Add Arne Ansper's reliable BIO - this is an encrypted, block-digested
5330 BIO. See the source (crypto/evp/bio_ok.c) for more info.
5331 [Arne Ansper <arne@ats.cyber.ee>]
5333 *) Dump the old yucky req code that tried (and failed) to allow raw OIDs
5334 to be added. Now both 'req' and 'ca' can use new objects defined in the
5338 *) Add cool BIO that does syslog (or event log on NT).
5339 [Arne Ansper <arne@ats.cyber.ee>, integrated by Ben Laurie]
5341 *) Add support for new TLS ciphersuites, TLS_RSA_EXPORT56_WITH_RC4_56_MD5,
5342 TLS_RSA_EXPORT56_WITH_RC2_CBC_56_MD5 and
5343 TLS_RSA_EXPORT56_WITH_DES_CBC_SHA, as specified in "56-bit Export Cipher
5344 Suites For TLS", draft-ietf-tls-56-bit-ciphersuites-00.txt.
5347 *) Add preliminary config info for new extension code.
5350 *) Make RSA_NO_PADDING really use no padding.
5351 [Ulf Moeller <ulf@fitug.de>]
5353 *) Generate errors when private/public key check is done.
5356 *) Overhaul for 'crl' utility. New function X509_CRL_print. Partial support
5357 for some CRL extensions and new objects added.
5360 *) Really fix the ASN1 IMPLICIT bug this time... Partial support for private
5361 key usage extension and fuller support for authority key id.
5364 *) Add OAEP encryption for the OpenSSL crypto library. OAEP is the improved
5365 padding method for RSA, which is recommended for new applications in PKCS
5366 #1 v2.0 (RFC 2437, October 1998).
5367 OAEP (Optimal Asymmetric Encryption Padding) has better theoretical
5368 foundations than the ad-hoc padding used in PKCS #1 v1.5. It is secure
5369 against Bleichbacher's attack on RSA.
5370 [Ulf Moeller <ulf@fitug.de>, reformatted, corrected and integrated by
5373 *) Updates to the new SSL compression code
5374 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
5376 *) Fix so that the version number in the master secret, when passed
5377 via RSA, checks that if TLS was proposed, but we roll back to SSLv3
5378 (because the server will not accept higher), that the version number
5379 is 0x03,0x01, not 0x03,0x00
5380 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
5382 *) Run extensive memory leak checks on SSL apps. Fixed *lots* of memory
5383 leaks in ssl/ relating to new X509_get_pubkey() behaviour. Also fixes
5384 in apps/ and an unrelated leak in crypto/dsa/dsa_vrf.c
5387 *) Support for RAW extensions where an arbitrary extension can be
5388 created by including its DER encoding. See apps/openssl.cnf for
5392 *) Make sure latest Perl versions don't interpret some generated C array
5393 code as Perl array code in the crypto/err/err_genc.pl script.
5394 [Lars Weber <3weber@informatik.uni-hamburg.de>]
5396 *) Modify ms/do_ms.bat to not generate assembly language makefiles since
5397 not many people have the assembler. Various Win32 compilation fixes and
5398 update to the INSTALL.W32 file with (hopefully) more accurate Win32
5402 *) Modify configure script 'Configure' to automatically create crypto/date.h
5403 file under Win32 and also build pem.h from pem.org. New script
5404 util/mkfiles.pl to create the MINFO file on environments that can't do a
5405 'make files': perl util/mkfiles.pl >MINFO should work.
5408 *) Major rework of DES function declarations, in the pursuit of correctness
5409 and purity. As a result, many evil casts evaporated, and some weirdness,
5410 too. You may find this causes warnings in your code. Zapping your evil
5411 casts will probably fix them. Mostly.
5414 *) Fix for a typo in asn1.h. Bug fix to object creation script
5415 obj_dat.pl. It considered a zero in an object definition to mean
5416 "end of object": none of the objects in objects.h have any zeros
5417 so it wasn't spotted.
5418 [Steve Henson, reported by Erwann ABALEA <eabalea@certplus.com>]
5420 *) Add support for Triple DES Cipher Block Chaining with Output Feedback
5421 Masking (CBCM). In the absence of test vectors, the best I have been able
5422 to do is check that the decrypt undoes the encrypt, so far. Send me test
5423 vectors if you have them.
5426 *) Correct calculation of key length for export ciphers (too much space was
5427 allocated for null ciphers). This has not been tested!
5430 *) Modifications to the mkdef.pl for Win32 DEF file creation. The usage
5431 message is now correct (it understands "crypto" and "ssl" on its
5432 command line). There is also now an "update" option. This will update
5433 the util/ssleay.num and util/libeay.num files with any new functions.
5435 perl util/mkdef.pl crypto ssl update
5436 it will update them.
5439 *) Overhauled the Perl interface (perl/*):
5440 - ported BN stuff to OpenSSL's different BN library
5441 - made the perl/ source tree CVS-aware
5442 - renamed the package from SSLeay to OpenSSL (the files still contain
5443 their history because I've copied them in the repository)
5444 - removed obsolete files (the test scripts will be replaced
5445 by better Test::Harness variants in the future)
5446 [Ralf S. Engelschall]
5448 *) First cut for a very conservative source tree cleanup:
5449 1. merge various obsolete readme texts into doc/ssleay.txt
5450 where we collect the old documents and readme texts.
5451 2. remove the first part of files where I'm already sure that we no
5452 longer need them because of three reasons: either they are just temporary
5453 files which were left by Eric or they are preserved original files where
5454 I've verified that the diff is also available in the CVS via "cvs diff
5455 -rSSLeay_0_8_1b" or they were renamed (as it was definitely the case for
5456 the crypto/md/ stuff).
5457 [Ralf S. Engelschall]
5459 *) More extension code. Incomplete support for subject and issuer alt
5460 name, issuer and authority key id. Change the i2v function parameters
5461 and add an extra 'crl' parameter in the X509V3_CTX structure: guess
5462 what that's for :-) Fix to ASN1 macro which messed up
5463 IMPLICIT tag and add f_enum.c which adds a2i, i2a for ENUMERATED.
5466 *) Preliminary support for ENUMERATED type. This is largely copied from the
5470 *) Add new function, EVP_MD_CTX_copy() to replace frequent use of memcpy.
5471 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
5473 *) Make sure `make rehash' target really finds the `openssl' program.
5474 [Ralf S. Engelschall, Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
5476 *) Squeeze another 7% of speed out of MD5 assembler, at least on a P2. I'd
5477 like to hear about it if this slows down other processors.
5480 *) Add CygWin32 platform information to Configure script.
5481 [Alan Batie <batie@aahz.jf.intel.com>]
5483 *) Fixed ms/32all.bat script: `no_asm' -> `no-asm'
5484 [Rainer W. Gerling <gerling@mpg-gv.mpg.de>]
5486 *) New program nseq to manipulate netscape certificate sequences
5489 *) Modify crl2pkcs7 so it supports multiple -certfile arguments. Fix a
5493 *) Fixes to BN code. Previously the default was to define BN_RECURSION
5494 but the BN code had some problems that would cause failures when
5495 doing certificate verification and some other functions.
5496 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
5498 *) Add ASN1 and PEM code to support netscape certificate sequences.
5501 *) Add ASN1 and PEM code to support netscape certificate sequences.
5504 *) Add several PKIX and private extended key usage OIDs.
5507 *) Modify the 'ca' program to handle the new extension code. Modify
5508 openssl.cnf for new extension format, add comments.
5511 *) More X509 V3 changes. Fix typo in v3_bitstr.c. Add support to 'req'
5512 and add a sample to openssl.cnf so req -x509 now adds appropriate
5516 *) Continued X509 V3 changes. Add to other makefiles, integrate with the
5517 error code, add initial support to X509_print() and x509 application.
5520 *) Takes a deep breath and start addding X509 V3 extension support code. Add
5521 files in crypto/x509v3. Move original stuff to crypto/x509v3/old. All this
5522 stuff is currently isolated and isn't even compiled yet.
5525 *) Continuing patches for GeneralizedTime. Fix up certificate and CRL
5526 ASN1 to use ASN1_TIME and modify print routines to use ASN1_TIME_print.
5527 Removed the versions check from X509 routines when loading extensions:
5528 this allows certain broken certificates that don't set the version
5529 properly to be processed.
5532 *) Deal with irritating shit to do with dependencies, in YAAHW (Yet Another
5533 Ad Hoc Way) - Makefile.ssls now all contain local dependencies, which
5534 can still be regenerated with "make depend".
5537 *) Spelling mistake in C version of CAST-128.
5538 [Ben Laurie, reported by Jeremy Hylton <jeremy@cnri.reston.va.us>]
5540 *) Changes to the error generation code. The perl script err-code.pl
5541 now reads in the old error codes and retains the old numbers, only
5542 adding new ones if necessary. It also only changes the .err files if new
5543 codes are added. The makefiles have been modified to only insert errors
5544 when needed (to avoid needlessly modifying header files). This is done
5545 by only inserting errors if the .err file is newer than the auto generated
5546 C file. To rebuild all the error codes from scratch (the old behaviour)
5547 either modify crypto/Makefile.ssl to pass the -regen flag to err_code.pl
5548 or delete all the .err files.
5551 *) CAST-128 was incorrectly implemented for short keys. The C version has
5552 been fixed, but is untested. The assembler versions are also fixed, but
5553 new assembler HAS NOT BEEN GENERATED FOR WIN32 - the Makefile needs fixing
5554 to regenerate it if needed.
5555 [Ben Laurie, reported (with fix for C version) by Jun-ichiro itojun
5556 Hagino <itojun@kame.net>]
5558 *) File was opened incorrectly in randfile.c.
5559 [Ulf Möller <ulf@fitug.de>]
5561 *) Beginning of support for GeneralizedTime. d2i, i2d, check and print
5562 functions. Also ASN1_TIME suite which is a CHOICE of UTCTime or
5563 GeneralizedTime. ASN1_TIME is the proper type used in certificates et
5564 al: it's just almost always a UTCTime. Note this patch adds new error
5565 codes so do a "make errors" if there are problems.
5568 *) Correct Linux 1 recognition in config.
5569 [Ulf Möller <ulf@fitug.de>]
5571 *) Remove pointless MD5 hash when using DSA keys in ca.
5572 [Anonymous <nobody@replay.com>]
5574 *) Generate an error if given an empty string as a cert directory. Also
5575 generate an error if handed NULL (previously returned 0 to indicate an
5576 error, but didn't set one).
5577 [Ben Laurie, reported by Anonymous <nobody@replay.com>]
5579 *) Add prototypes to SSL methods. Make SSL_write's buffer const, at last.
5582 *) Fix the dummy function BN_ref_mod_exp() in rsaref.c to have the correct
5583 parameters. This was causing a warning which killed off the Win32 compile.
5586 *) Remove C++ style comments from crypto/bn/bn_local.h.
5587 [Neil Costigan <neil.costigan@celocom.com>]
5589 *) The function OBJ_txt2nid was broken. It was supposed to return a nid
5590 based on a text string, looking up short and long names and finally
5591 "dot" format. The "dot" format stuff didn't work. Added new function
5592 OBJ_txt2obj to do the same but return an ASN1_OBJECT and rewrote
5593 OBJ_txt2nid to use it. OBJ_txt2obj can also return objects even if the
5594 OID is not part of the table.
5597 *) Add prototypes to X509 lookup/verify methods, fixing a bug in
5598 X509_LOOKUP_by_alias().
5601 *) Sort openssl functions by name.
5604 *) Get the gendsa program working (hopefully) and add it to app list. Remove
5605 encryption from sample DSA keys (in case anyone is interested the password
5609 *) Make _all_ *_free functions accept a NULL pointer.
5610 [Frans Heymans <fheymans@isaserver.be>]
5612 *) If a DH key is generated in s3_srvr.c, don't blow it by trying to use
5614 [Anonymous <nobody@replay.com>]
5616 *) s_server should send the CAfile as acceptable CAs, not its own cert.
5617 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
5619 *) Don't blow it for numeric -newkey arguments to apps/req.
5620 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
5622 *) Temp key "for export" tests were wrong in s3_srvr.c.
5623 [Anonymous <nobody@replay.com>]
5625 *) Add prototype for temp key callback functions
5626 SSL_CTX_set_tmp_{rsa,dh}_callback().
5629 *) Make DH_free() tolerate being passed a NULL pointer (like RSA_free() and
5630 DSA_free()). Make X509_PUBKEY_set() check for errors in d2i_PublicKey().
5633 *) X509_name_add_entry() freed the wrong thing after an error.
5634 [Arne Ansper <arne@ats.cyber.ee>]
5636 *) rsa_eay.c would attempt to free a NULL context.
5637 [Arne Ansper <arne@ats.cyber.ee>]
5639 *) BIO_s_socket() had a broken should_retry() on Windoze.
5640 [Arne Ansper <arne@ats.cyber.ee>]
5642 *) BIO_f_buffer() didn't pass on BIO_CTRL_FLUSH.
5643 [Arne Ansper <arne@ats.cyber.ee>]
5645 *) Make sure the already existing X509_STORE->depth variable is initialized
5646 in X509_STORE_new(), but document the fact that this variable is still
5647 unused in the certificate verification process.
5648 [Ralf S. Engelschall]
5650 *) Fix the various library and apps files to free up pkeys obtained from
5651 X509_PUBKEY_get() et al. Also allow x509.c to handle netscape extensions.
5654 *) Fix reference counting in X509_PUBKEY_get(). This makes
5655 demos/maurice/example2.c work, amongst others, probably.
5656 [Steve Henson and Ben Laurie]
5658 *) First cut of a cleanup for apps/. First the `ssleay' program is now named
5659 `openssl' and second, the shortcut symlinks for the `openssl <command>'
5660 are no longer created. This way we have a single and consistent command
5661 line interface `openssl <command>', similar to `cvs <command>'.
5662 [Ralf S. Engelschall, Paul Sutton and Ben Laurie]
5664 *) ca.c: move test for DSA keys inside #ifndef NO_DSA. Make pubkey
5665 BIT STRING wrapper always have zero unused bits.
5668 *) Add CA.pl, perl version of CA.sh, add extended key usage OID.
5671 *) Make the top-level INSTALL documentation easier to understand.
5674 *) Makefiles updated to exit if an error occurs in a sub-directory
5675 make (including if user presses ^C) [Paul Sutton]
5677 *) Make Montgomery context stuff explicit in RSA data structure.
5680 *) Fix build order of pem and err to allow for generated pem.h.
5683 *) Fix renumbering bug in X509_NAME_delete_entry().
5686 *) Enhanced the err-ins.pl script so it makes the error library number
5687 global and can add a library name. This is needed for external ASN1 and
5688 other error libraries.
5691 *) Fixed sk_insert which never worked properly.
5694 *) Fix ASN1 macros so they can handle indefinite length construted
5695 EXPLICIT tags. Some non standard certificates use these: they can now
5699 *) Merged the various old/obsolete SSLeay documentation files (doc/xxx.doc)
5700 into a single doc/ssleay.txt bundle. This way the information is still
5701 preserved but no longer messes up this directory. Now it's new room for
5702 the new set of documenation files.
5703 [Ralf S. Engelschall]
5705 *) SETs were incorrectly DER encoded. This was a major pain, because they
5706 shared code with SEQUENCEs, which aren't coded the same. This means that
5707 almost everything to do with SETs or SEQUENCEs has either changed name or
5708 number of arguments.
5709 [Ben Laurie, based on a partial fix by GP Jayan <gp@nsj.co.jp>]
5711 *) Fix test data to work with the above.
5714 *) Fix the RSA header declarations that hid a bug I fixed in 0.9.0b but
5715 was already fixed by Eric for 0.9.1 it seems.
5716 [Ben Laurie - pointed out by Ulf Möller <ulf@fitug.de>]
5718 *) Autodetect FreeBSD3.
5721 *) Fix various bugs in Configure. This affects the following platforms:
5725 unixware-2.0-pentium
5729 *) Eliminate generated files from CVS. Reorder tests to regenerate files
5730 before they are needed.
5733 *) Generate Makefile.ssl from Makefile.org (to keep CVS happy).
5737 Changes between 0.9.1b and 0.9.1c [23-Dec-1998]
5739 *) Added OPENSSL_VERSION_NUMBER to crypto/crypto.h and
5740 changed SSLeay to OpenSSL in version strings.
5741 [Ralf S. Engelschall]
5743 *) Some fixups to the top-level documents.
5746 *) Fixed the nasty bug where rsaref.h was not found under compile-time
5747 because the symlink to include/ was missing.
5748 [Ralf S. Engelschall]
5750 *) Incorporated the popular no-RSA/DSA-only patches
5751 which allow to compile a RSA-free SSLeay.
5752 [Andrew Cooke / Interrader Ldt., Ralf S. Engelschall]
5754 *) Fixed nasty rehash problem under `make -f Makefile.ssl links'
5755 when "ssleay" is still not found.
5756 [Ralf S. Engelschall]
5758 *) Added more platforms to Configure: Cray T3E, HPUX 11,
5759 [Ralf S. Engelschall, Beckmann <beckman@acl.lanl.gov>]
5761 *) Updated the README file.
5762 [Ralf S. Engelschall]
5764 *) Added various .cvsignore files in the CVS repository subdirs
5765 to make a "cvs update" really silent.
5766 [Ralf S. Engelschall]
5768 *) Recompiled the error-definition header files and added
5769 missing symbols to the Win32 linker tables.
5770 [Ralf S. Engelschall]
5772 *) Cleaned up the top-level documents;
5773 o new files: CHANGES and LICENSE
5774 o merged VERSION, HISTORY* and README* files a CHANGES.SSLeay
5775 o merged COPYRIGHT into LICENSE
5776 o removed obsolete TODO file
5777 o renamed MICROSOFT to INSTALL.W32
5778 [Ralf S. Engelschall]
5780 *) Removed dummy files from the 0.9.1b source tree:
5781 crypto/asn1/x crypto/bio/cd crypto/bio/fg crypto/bio/grep crypto/bio/vi
5782 crypto/bn/asm/......add.c crypto/bn/asm/a.out crypto/dsa/f crypto/md5/f
5783 crypto/pem/gmon.out crypto/perlasm/f crypto/pkcs7/build crypto/rsa/f
5784 crypto/sha/asm/f crypto/threads/f ms/zzz ssl/f ssl/f.mak test/f
5785 util/f.mak util/pl/f util/pl/f.mak crypto/bf/bf_locl.old apps/f
5786 [Ralf S. Engelschall]
5788 *) Added various platform portability fixes.
5791 *) The Genesis of the OpenSSL rpject:
5792 We start with the latest (unreleased) SSLeay version 0.9.1b which Eric A.
5793 Young and Tim J. Hudson created while they were working for C2Net until
5795 [The OpenSSL Project]
5798 Changes between 0.9.0b and 0.9.1b [not released]
5800 *) Updated a few CA certificates under certs/
5803 *) Changed some BIGNUM api stuff.
5806 *) Various platform ports: OpenBSD, Ultrix, IRIX 64bit, NetBSD,
5807 DGUX x86, Linux Alpha, etc.
5810 *) New COMP library [crypto/comp/] for SSL Record Layer Compression:
5811 RLE (dummy implemented) and ZLIB (really implemented when ZLIB is
5815 *) Add -strparse option to asn1pars program which parses nested
5817 [Dr Stephen Henson <shenson@bigfoot.com>]
5819 *) Added "oid_file" to ssleay.cnf for "ca" and "req" programs.
5822 *) DSA fix for "ca" program.
5825 *) Added "-genkey" option to "dsaparam" program.
5828 *) Added RIPE MD160 (rmd160) message digest.
5831 *) Added -a (all) option to "ssleay version" command.
5834 *) Added PLATFORM define which is the id given to Configure.
5837 *) Added MemCheck_XXXX functions to crypto/mem.c for memory checking.
5840 *) Extended the ASN.1 parser routines.
5843 *) Extended BIO routines to support REUSEADDR, seek, tell, etc.
5846 *) Added a BN_CTX to the BN library.
5849 *) Fixed the weak key values in DES library
5852 *) Changed API in EVP library for cipher aliases.
5855 *) Added support for RC2/64bit cipher.
5858 *) Converted the lhash library to the crypto/mem.c functions.
5861 *) Added more recognized ASN.1 object ids.
5864 *) Added more RSA padding checks for SSL/TLS.
5867 *) Added BIO proxy/filter functionality.
5870 *) Added extra_certs to SSL_CTX which can be used
5871 send extra CA certificates to the client in the CA cert chain sending
5872 process. It can be configured with SSL_CTX_add_extra_chain_cert().
5875 *) Now Fortezza is denied in the authentication phase because
5876 this is key exchange mechanism is not supported by SSLeay at all.
5879 *) Additional PKCS1 checks.
5882 *) Support the string "TLSv1" for all TLS v1 ciphers.
5885 *) Added function SSL_get_ex_data_X509_STORE_CTX_idx() which gives the
5886 ex_data index of the SSL context in the X509_STORE_CTX ex_data.
5889 *) Fixed a few memory leaks.
5892 *) Fixed various code and comment typos.
5895 *) A minor bug in ssl/s3_clnt.c where there would always be 4 0
5896 bytes sent in the client random.
5897 [Edward Bishop <ebishop@spyglass.com>]