5 Changes between 0.9.5a and 0.9.6 [xx XXX 2000]
7 *) Remove lots of duplicated code from the EVP library. For example *every*
8 cipher init() function handles the 'iv' in the same way according to the
9 cipher mode. They also all do nothing if the 'key' parameter is NULL and
10 for CFB and OFB modes they zero ctx->num.
12 By shifting this to the top level EVP_CipherInit() it can be removed from
13 all individual ciphers. If the cipher wants to handle IVs or keys
14 differently it can set the EVP_CIPH_CUSTOM_IV or EVP_CIPH_ALWAYS_CALL_INIT
18 *) In ssl/s2_clnt.c and ssl/s3_clnt.c, call ERR_clear_error() when
19 the handshake is continued after ssl_verify_cert_chain();
20 otherwise, if SSL_VERIFY_NONE is set, remaining error codes
21 can lead to 'unexplainable' connection aborts later.
22 [Bodo Moeller; problem tracked down by Lutz Jaenicke]
24 *) EVP cipher enhancement. Add hooks for extra EVP features. This will allow
25 various cipher parameters to be set in the EVP interface. Initially
26 support added for variable key length ciphers via the
27 EVP_CIPHER_CTX_set_key_length() function. Other cipher specific
28 parameters will be added later via the new catchall 'ctrl' function.
29 New functionality allows removal of S/MIME code RC2 hack.
31 Still needs support in other library functions, and allow parameter
32 setting for algorithms like RC2, RC5.
34 Change lots of functions like EVP_EncryptUpdate() to now return a
35 value: although software versions of the algorithms cannot fail
36 any installed hardware versions can.
39 *) Implement SSL_OP_TLS_ROLLBACK_BUG: In ssl3_get_client_key_exchange, if
40 this option is set, tolerate broken clients that send the negotiated
41 protocol version number instead of the requested protocol version
45 *) Call dh_tmp_cb (set by ..._TMP_DH_CB) with correct 'is_export' flag;
46 i.e. non-zero for export ciphersuites, zero otherwise.
47 Previous versions had this flag inverted, inconsistent with
48 rsa_tmp_cb (..._TMP_RSA_CB).
49 [Bodo Moeller; problem reported by Amit Chopra]
51 *) Add missing DSA library text string. Work around for some IIS
52 key files with invalid SEQUENCE encoding.
55 *) Add a document (doc/standards.txt) that list all kinds of standards
56 and so on that are implemented in OpenSSL.
59 *) Enhance c_rehash script. Old version would mishandle certificates
60 with the same subject name hash and wouldn't handle CRLs at all.
61 Added -fingerprint option to crl utility, to support new c_rehash
65 *) Eliminate non-ANSI declarations in crypto.h and stack.h.
68 *) Fix for SSL server purpose checking. Server checking was
69 rejecting certificates which had extended key usage present
70 but no ssl client purpose.
71 [Steve Henson, reported by Rene Grosser <grosser@hisolutions.com>]
73 *) Make PKCS#12 code work with no password. The PKCS#12 spec
74 is a little unclear about how a blank password is handled.
75 Since the password in encoded as a BMPString with terminating
76 double NULL a zero length password would end up as just the
77 double NULL. However no password at all is different and is
78 handled differently in the PKCS#12 key generation code. NS
79 treats a blank password as zero length. MSIE treats it as no
80 password on export: but it will try both on import. We now do
81 the same: PKCS12_parse() tries zero length and no password if
82 the password is set to "" or NULL (NULL is now a valid password:
83 it wasn't before) as does the pkcs12 application.
86 *) Bugfixes in apps/x509.c: Avoid a memory leak; and don't use
87 perror when PEM_read_bio_X509_REQ fails, the error message must
88 be obtained from the error queue.
91 *) Avoid 'thread_hash' memory leak in crypto/err/err.c by freeing
92 it in ERR_remove_state if appropriate, and change ERR_get_state
93 accordingly to avoid race conditions (this is necessary because
94 thread_hash is no longer constant once set).
97 *) Bugfix for linux-elf makefile.one.
100 *) RSA_get_default_method() will now cause a default
101 RSA_METHOD to be chosen if one doesn't exist already.
102 Previously this was only set during a call to RSA_new()
103 or RSA_new_method(NULL) meaning it was possible for
104 RSA_get_default_method() to return NULL.
107 *) Added native name translation to the existing DSO code
108 that will convert (if the flag to do so is set) filenames
109 that are sufficiently small and have no path information
110 into a canonical native form. Eg. "blah" converted to
111 "libblah.so" or "blah.dll" etc.
114 *) New function ERR_error_string_n(e, buf, len) which is like
115 ERR_error_string(e, buf), but writes at most 'len' bytes
116 including the 0 terminator. For ERR_error_string_n, 'buf'
118 [Damien Miller <djm@mindrot.org>, Bodo Moeller]
120 *) CONF library reworked to become more general. A new CONF
121 configuration file reader "class" is implemented as well as a
122 new functions (NCONF_*, for "New CONF") to handle it. The now
123 old CONF_* functions are still there, but are reimplemented to
124 work in terms of the new functions. Also, a set of functions
125 to handle the internal storage of the configuration data is
126 provided to make it easier to write new configuration file
127 reader "classes" (I can definitely see something reading a
128 configuration file in XML format, for example), called _CONF_*,
129 or "the configuration storage API"...
131 The new configuration file reading functions are:
133 NCONF_new, NCONF_free, NCONF_load, NCONF_load_fp, NCONF_load_bio,
134 NCONF_get_section, NCONF_get_string, NCONF_get_numbre
136 NCONF_default, NCONF_WIN32
138 NCONF_dump_fp, NCONF_dump_bio
140 NCONF_default and NCONF_WIN32 are method (or "class") choosers,
141 NCONF_new creates a new CONF object. This works in the same way
142 as other interfaces in OpenSSL, like the BIO interface.
143 NCONF_dump_* dump the internal storage of the configuration file,
144 which is useful for debugging. All other functions take the same
145 arguments as the old CONF_* functions wth the exception of the
146 first that must be a `CONF *' instead of a `LHASH *'.
148 To make it easer to use the new classes with the old CONF_* functions,
149 the function CONF_set_default_method is provided.
152 *) Add '-tls1' option to 'openssl ciphers', which was already
153 mentioned in the documentation but had not been implemented.
154 (This option is not yet really useful because even the additional
155 experimental TLS 1.0 ciphers are currently treated as SSL 3.0 ciphers.)
158 *) Initial DSO code added into libcrypto for letting OpenSSL (and
159 OpenSSL-based applications) load shared libraries and bind to
160 them in a portable way.
161 [Geoff Thorpe, with contributions from Richard Levitte]
163 Changes between 0.9.5 and 0.9.5a [1 Apr 2000]
165 *) Make sure _lrotl and _lrotr are only used with MSVC.
167 *) Use lock CRYPTO_LOCK_RAND correctly in ssleay_rand_status
168 (the default implementation of RAND_status).
170 *) Rename openssl x509 option '-crlext', which was added in 0.9.5,
171 to '-clrext' (= clear extensions), as intended and documented.
172 [Bodo Moeller; inconsistency pointed out by Michael Attili
175 *) Fix for HMAC. It wasn't zeroing the rest of the block if the key length
176 was larger than the MD block size.
177 [Steve Henson, pointed out by Yost William <YostW@tce.com>]
179 *) Modernise PKCS12_parse() so it uses STACK_OF(X509) for its ca argument
180 fix a leak when the ca argument was passed as NULL. Stop X509_PUBKEY_set()
181 using the passed key: if the passed key was a private key the result
182 of X509_print(), for example, would be to print out all the private key
186 *) des_quad_cksum() byte order bug fix.
187 [Ulf Möller, using the problem description in krb4-0.9.7, where
188 the solution is attributed to Derrick J Brashear <shadow@DEMENTIA.ORG>]
190 *) Fix so V_ASN1_APP_CHOOSE works again: however its use is strongly
192 [Steve Henson, pointed out by Brian Korver <briank@cs.stanford.edu>]
194 *) For easily testing in shell scripts whether some command
195 'openssl XXX' exists, the new pseudo-command 'openssl no-XXX'
196 returns with exit code 0 iff no command of the given name is available.
197 'no-XXX' is printed in this case, 'XXX' otherwise. In both cases,
198 the output goes to stdout and nothing is printed to stderr.
199 Additional arguments are always ignored.
201 Since for each cipher there is a command of the same name,
202 the 'no-cipher' compilation switches can be tested this way.
204 ('openssl no-XXX' is not able to detect pseudo-commands such
205 as 'quit', 'list-XXX-commands', or 'no-XXX' itself.)
208 *) Update test suite so that 'make test' succeeds in 'no-rsa' configuration.
211 *) For SSL_[CTX_]set_tmp_dh, don't create a DH key if SSL_OP_SINGLE_DH_USE
212 is set; it will be thrown away anyway because each handshake creates
214 ssl_cert_dup, which is used by SSL_new, now copies DH keys in addition
215 to parameters -- in previous versions (since OpenSSL 0.9.3) the
216 'default key' from SSL_CTX_set_tmp_dh would always be lost, meanining
217 you effectivly got SSL_OP_SINGLE_DH_USE when using this macro.
220 *) New s_client option -ign_eof: EOF at stdin is ignored, and
221 'Q' and 'R' lose their special meanings (quit/renegotiate).
222 This is part of what -quiet does; unlike -quiet, -ign_eof
223 does not suppress any output.
226 *) Add compatibility options to the purpose and trust code. The
227 purpose X509_PURPOSE_ANY is "any purpose" which automatically
228 accepts a certificate or CA, this was the previous behaviour,
229 with all the associated security issues.
231 X509_TRUST_COMPAT is the old trust behaviour: only and
232 automatically trust self signed roots in certificate store. A
233 new trust setting X509_TRUST_DEFAULT is used to specify that
234 a purpose has no associated trust setting and it should instead
235 use the value in the default purpose.
238 *) Fix the PKCS#8 DSA private key code so it decodes keys again
239 and fix a memory leak.
242 *) In util/mkerr.pl (which implements 'make errors'), preserve
243 reason strings from the previous version of the .c file, as
244 the default to have only downcase letters (and digits) in
245 automatically generated reasons codes is not always appropriate.
248 *) In ERR_load_ERR_strings(), build an ERR_LIB_SYS error reason table
249 using strerror. Previously, ERR_reason_error_string() returned
250 library names as reason strings for SYSerr; but SYSerr is a special
251 case where small numbers are errno values, not library numbers.
254 *) Add '-dsaparam' option to 'openssl dhparam' application. This
255 converts DSA parameters into DH parameters. (When creating parameters,
256 DSA_generate_parameters is used.)
259 *) Include 'length' (recommended exponent length) in C code generated
260 by 'openssl dhparam -C'.
263 *) The second argument to set_label in perlasm was already being used
264 so couldn't be used as a "file scope" flag. Moved to third argument
268 *) In PEM_ASN1_write_bio and some other functions, use RAND_pseudo_bytes
269 instead of RAND_bytes for encryption IVs and salts.
272 *) Include RAND_status() into RAND_METHOD instead of implementing
273 it only for md_rand.c Otherwise replacing the PRNG by calling
274 RAND_set_rand_method would be impossible.
277 *) Don't let DSA_generate_key() enter an infinite loop if the random
278 number generation fails.
281 *) New 'rand' application for creating pseudo-random output.
284 *) Added configuration support for Linux/IA64
285 [Rolf Haberrecker <rolf@suse.de>]
287 *) Assembler module support for Mingw32.
290 *) Shared library support for HPUX (in shlib/).
291 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE> and Anonymous]
293 *) Shared library support for Solaris gcc.
294 [Lutz Behnke <behnke@trustcenter.de>]
296 Changes between 0.9.4 and 0.9.5 [28 Feb 2000]
298 *) PKCS7_encrypt() was adding text MIME headers twice because they
299 were added manually and by SMIME_crlf_copy().
302 *) In bntest.c don't call BN_rand with zero bits argument.
303 [Steve Henson, pointed out by Andrew W. Gray <agray@iconsinc.com>]
305 *) BN_mul bugfix: In bn_mul_part_recursion() only the a>a[n] && b>b[n]
306 case was implemented. This caused BN_div_recp() to fail occasionally.
309 *) Add an optional second argument to the set_label() in the perl
310 assembly language builder. If this argument exists and is set
311 to 1 it signals that the assembler should use a symbol whose
312 scope is the entire file, not just the current function. This
313 is needed with MASM which uses the format label:: for this scope.
314 [Steve Henson, pointed out by Peter Runestig <peter@runestig.com>]
316 *) Change the ASN1 types so they are typedefs by default. Before
317 almost all types were #define'd to ASN1_STRING which was causing
318 STACK_OF() problems: you couldn't declare STACK_OF(ASN1_UTF8STRING)
322 *) Change names of new functions to the new get1/get0 naming
323 convention: After 'get1', the caller owns a reference count
324 and has to call ..._free; 'get0' returns a pointer to some
325 data structure without incrementing reference counters.
326 (Some of the existing 'get' functions increment a reference
327 counter, some don't.)
328 Similarly, 'set1' and 'add1' functions increase reference
329 counters or duplicate objects.
332 *) Allow for the possibility of temp RSA key generation failure:
333 the code used to assume it always worked and crashed on failure.
336 *) Fix potential buffer overrun problem in BIO_printf().
337 [Ulf Möller, using public domain code by Patrick Powell; problem
338 pointed out by David Sacerdote <das33@cornell.edu>]
340 *) Support EGD <http://www.lothar.com/tech/crypto/>. New functions
341 RAND_egd() and RAND_status(). In the command line application,
342 the EGD socket can be specified like a seed file using RANDFILE
346 *) Allow the string CERTIFICATE to be tolerated in PKCS#7 structures.
347 Some CAs (e.g. Verisign) distribute certificates in this form.
350 *) Remove the SSL_ALLOW_ADH compile option and set the default cipher
351 list to exclude them. This means that no special compilation option
352 is needed to use anonymous DH: it just needs to be included in the
356 *) Change the EVP_MD_CTX_type macro so its meaning consistent with
357 EVP_MD_type. The old functionality is available in a new macro called
358 EVP_MD_md(). Change code that uses it and update docs.
361 *) ..._ctrl functions now have corresponding ..._callback_ctrl functions
362 where the 'void *' argument is replaced by a function pointer argument.
363 Previously 'void *' was abused to point to functions, which works on
364 many platforms, but is not correct. As these functions are usually
365 called by macros defined in OpenSSL header files, most source code
366 should work without changes.
369 *) <openssl/opensslconf.h> (which is created by Configure) now contains
370 sections with information on -D... compiler switches used for
371 compiling the library so that applications can see them. To enable
372 one of these sections, a pre-processor symbol OPENSSL_..._DEFINES
373 must be defined. E.g.,
374 #define OPENSSL_ALGORITHM_DEFINES
375 #include <openssl/opensslconf.h>
376 defines all pertinent NO_<algo> symbols, such as NO_IDEA, NO_RSA, etc.
377 [Richard Levitte, Ulf and Bodo Möller]
379 *) Bugfix: Tolerate fragmentation and interleaving in the SSL 3/TLS
383 *) Change the 'other' type in certificate aux info to a STACK_OF
384 X509_ALGOR. Although not an AlgorithmIdentifier as such it has
385 the required ASN1 format: arbitrary types determined by an OID.
388 *) Add some PEM_write_X509_REQ_NEW() functions and a command line
389 argument to 'req'. This is not because the function is newer or
390 better than others it just uses the work 'NEW' in the certificate
391 request header lines. Some software needs this.
394 *) Reorganise password command line arguments: now passwords can be
395 obtained from various sources. Delete the PEM_cb function and make
396 it the default behaviour: i.e. if the callback is NULL and the
397 usrdata argument is not NULL interpret it as a null terminated pass
398 phrase. If usrdata and the callback are NULL then the pass phrase
399 is prompted for as usual.
402 *) Add support for the Compaq Atalla crypto accelerator. If it is installed,
403 the support is automatically enabled. The resulting binaries will
404 autodetect the card and use it if present.
405 [Ben Laurie and Compaq Inc.]
407 *) Work around for Netscape hang bug. This sends certificate request
408 and server done in one record. Since this is perfectly legal in the
409 SSL/TLS protocol it isn't a "bug" option and is on by default. See
410 the bugs/SSLv3 entry for more info.
413 *) HP-UX tune-up: new unified configs, HP C compiler bug workaround.
416 *) Add -rand argument to smime and pkcs12 applications and read/write
420 *) New 'passwd' tool for crypt(3) and apr1 password hashes.
423 *) Add command line password options to the remaining applications.
426 *) Bug fix for BN_div_recp() for numerators with an even number of
430 *) More tests in bntest.c, and changed test_bn output.
433 *) ./config recognizes MacOS X now.
436 *) Bug fix for BN_div() when the first words of num and divsor are
437 equal (it gave wrong results if (rem=(n1-q*d0)&BN_MASK2) < d0).
440 *) Add support for various broken PKCS#8 formats, and command line
441 options to produce them.
444 *) New functions BN_CTX_start(), BN_CTX_get() and BT_CTX_end() to
445 get temporary BIGNUMs from a BN_CTX.
448 *) Correct return values in BN_mod_exp_mont() and BN_mod_exp2_mont()
452 *) Change the SSLeay_add_all_*() functions to OpenSSL_add_all_*() and
453 include a #define from the old name to the new. The original intent
454 was that statically linked binaries could for example just call
455 SSLeay_add_all_ciphers() to just add ciphers to the table and not
456 link with digests. This never worked becayse SSLeay_add_all_digests()
457 and SSLeay_add_all_ciphers() were in the same source file so calling
458 one would link with the other. They are now in separate source files.
461 *) Add a new -notext option to 'ca' and a -pubkey option to 'spkac'.
464 *) Use a less unusual form of the Miller-Rabin primality test (it used
465 a binary algorithm for exponentiation integrated into the Miller-Rabin
466 loop, our standard modexp algorithms are faster).
469 *) Support for the EBCDIC character set completed.
470 [Martin Kraemer <Martin.Kraemer@Mch.SNI.De>]
472 *) Source code cleanups: use const where appropriate, eliminate casts,
473 use void * instead of char * in lhash.
476 *) Bugfix: ssl3_send_server_key_exchange was not restartable
477 (the state was not changed to SSL3_ST_SW_KEY_EXCH_B, and because of
478 this the server could overwrite ephemeral keys that the client
482 *) Turn DSA_is_prime into a macro that calls BN_is_prime,
483 using 50 iterations of the Rabin-Miller test.
485 DSA_generate_parameters now uses BN_is_prime_fasttest (with 50
486 iterations of the Rabin-Miller test as required by the appendix
487 to FIPS PUB 186[-1]) instead of DSA_is_prime.
488 As BN_is_prime_fasttest includes trial division, DSA parameter
489 generation becomes much faster.
491 This implies a change for the callback functions in DSA_is_prime
492 and DSA_generate_parameters: The callback function is called once
493 for each positive witness in the Rabin-Miller test, not just
494 occasionally in the inner loop; and the parameters to the
495 callback function now provide an iteration count for the outer
496 loop rather than for the current invocation of the inner loop.
497 DSA_generate_parameters additionally can call the callback
498 function with an 'iteration count' of -1, meaning that a
499 candidate has passed the trial division test (when q is generated
500 from an application-provided seed, trial division is skipped).
503 *) New function BN_is_prime_fasttest that optionally does trial
504 division before starting the Rabin-Miller test and has
505 an additional BN_CTX * argument (whereas BN_is_prime always
506 has to allocate at least one BN_CTX).
507 'callback(1, -1, cb_arg)' is called when a number has passed the
508 trial division stage.
511 *) Fix for bug in CRL encoding. The validity dates weren't being handled
515 *) New -pkcs12 option to CA.pl script to write out a PKCS#12 file.
518 *) New function BN_pseudo_rand().
521 *) Clean up BN_mod_mul_montgomery(): replace the broken (and unreadable)
522 bignum version of BN_from_montgomery() with the working code from
523 SSLeay 0.9.0 (the word based version is faster anyway), and clean up
527 *) Avoid a race condition in s2_clnt.c (function get_server_hello) that
528 made it impossible to use the same SSL_SESSION data structure in
529 SSL2 clients in multiple threads.
532 *) The return value of RAND_load_file() no longer counts bytes obtained
533 by stat(). RAND_load_file(..., -1) is new and uses the complete file
534 to seed the PRNG (previously an explicit byte count was required).
535 [Ulf Möller, Bodo Möller]
537 *) Clean up CRYPTO_EX_DATA functions, some of these didn't have prototypes
538 used (char *) instead of (void *) and had casts all over the place.
541 *) Make BN_generate_prime() return NULL on error if ret!=NULL.
544 *) Retain source code compatibility for BN_prime_checks macro:
545 BN_is_prime(..., BN_prime_checks, ...) now uses
546 BN_prime_checks_for_size to determine the appropriate number of
547 Rabin-Miller iterations.
550 *) Diffie-Hellman uses "safe" primes: DH_check() return code renamed to
551 DH_CHECK_P_NOT_SAFE_PRIME.
552 (Check if this is true? OpenPGP calls them "strong".)
555 *) Merge the functionality of "dh" and "gendh" programs into a new program
556 "dhparam". The old programs are retained for now but will handle DH keys
557 (instead of parameters) in future.
560 *) Make the ciphers, s_server and s_client programs check the return values
561 when a new cipher list is set.
564 *) Enhance the SSL/TLS cipher mechanism to correctly handle the TLS 56bit
565 ciphers. Before when the 56bit ciphers were enabled the sorting was
568 The syntax for the cipher sorting has been extended to support sorting by
569 cipher-strength (using the strength_bits hard coded in the tables).
570 The new command is "@STRENGTH" (see also doc/apps/ciphers.pod).
572 Fix a bug in the cipher-command parser: when supplying a cipher command
573 string with an "undefined" symbol (neither command nor alphanumeric
574 [A-Za-z0-9], ssl_set_cipher_list used to hang in an endless loop. Now
577 Due to the strength-sorting extension, the code of the
578 ssl_create_cipher_list() function was completely rearranged. I hope that
579 the readability was also increased :-)
580 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
582 *) Minor change to 'x509' utility. The -CAcreateserial option now uses 1
583 for the first serial number and places 2 in the serial number file. This
584 avoids problems when the root CA is created with serial number zero and
585 the first user certificate has the same issuer name and serial number
589 *) Fixes to X509_ATTRIBUTE utilities, change the 'req' program so it uses
590 the new code. Add documentation for this stuff.
593 *) Changes to X509_ATTRIBUTE utilities. These have been renamed from
594 X509_*() to X509at_*() on the grounds that they don't handle X509
595 structures and behave in an analagous way to the X509v3 functions:
596 they shouldn't be called directly but wrapper functions should be used
599 So we also now have some wrapper functions that call the X509at functions
600 when passed certificate requests. (TO DO: similar things can be done with
601 PKCS#7 signed and unsigned attributes, PKCS#12 attributes and a few other
602 things. Some of these need some d2i or i2d and print functionality
603 because they handle more complex structures.)
606 *) Add missing #ifndefs that caused missing symbols when building libssl
607 as a shared library without RSA. Use #ifndef NO_SSL2 instead of
609 [Kris Kennaway <kris@hub.freebsd.org>, modified by Ulf Möller]
611 *) Precautions against using the PRNG uninitialized: RAND_bytes() now
612 has a return value which indicates the quality of the random data
613 (1 = ok, 0 = not seeded). Also an error is recorded on the thread's
614 error queue. New function RAND_pseudo_bytes() generates output that is
615 guaranteed to be unique but not unpredictable. RAND_add is like
616 RAND_seed, but takes an extra argument for an entropy estimate
617 (RAND_seed always assumes full entropy).
620 *) Do more iterations of Rabin-Miller probable prime test (specifically,
621 3 for 1024-bit primes, 6 for 512-bit primes, 12 for 256-bit primes
622 instead of only 2 for all lengths; see BN_prime_checks_for_size definition
623 in crypto/bn/bn_prime.c for the complete table). This guarantees a
624 false-positive rate of at most 2^-80 for random input.
627 *) Rewrite ssl3_read_n (ssl/s3_pkt.c) avoiding a couple of bugs.
630 *) New function X509_CTX_rget_chain() (renamed to X509_CTX_get1_chain
631 in the 0.9.5 release), this returns the chain
632 from an X509_CTX structure with a dup of the stack and all
633 the X509 reference counts upped: so the stack will exist
634 after X509_CTX_cleanup() has been called. Modify pkcs12.c
637 Also make SSL_SESSION_print() print out the verify return
641 *) Add manpage for the pkcs12 command. Also change the default
642 behaviour so MAC iteration counts are used unless the new
643 -nomaciter option is used. This improves file security and
644 only older versions of MSIE (4.0 for example) need it.
647 *) Honor the no-xxx Configure options when creating .DEF files.
650 *) Add PKCS#10 attributes to field table: challengePassword,
651 unstructuredName and unstructuredAddress. These are taken from
652 draft PKCS#9 v2.0 but are compatible with v1.2 provided no
653 international characters are used.
655 More changes to X509_ATTRIBUTE code: allow the setting of types
656 based on strings. Remove the 'loc' parameter when adding
657 attributes because these will be a SET OF encoding which is sorted
661 *) Initial changes to the 'req' utility to allow request generation
662 automation. This will allow an application to just generate a template
663 file containing all the field values and have req construct the
666 Initial support for X509_ATTRIBUTE handling. Stacks of these are
667 used all over the place including certificate requests and PKCS#7
668 structures. They are currently handled manually where necessary with
669 some primitive wrappers for PKCS#7. The new functions behave in a
670 manner analogous to the X509 extension functions: they allow
671 attributes to be looked up by NID and added.
673 Later something similar to the X509V3 code would be desirable to
674 automatically handle the encoding, decoding and printing of the
675 more complex types. The string types like challengePassword can
676 be handled by the string table functions.
678 Also modified the multi byte string table handling. Now there is
679 a 'global mask' which masks out certain types. The table itself
680 can use the flag STABLE_NO_MASK to ignore the mask setting: this
681 is useful when for example there is only one permissible type
682 (as in countryName) and using the mask might result in no valid
686 *) Clean up 'Finished' handling, and add functions SSL_get_finished and
687 SSL_get_peer_finished to allow applications to obtain the latest
688 Finished messages sent to the peer or expected from the peer,
689 respectively. (SSL_get_peer_finished is usually the Finished message
690 actually received from the peer, otherwise the protocol will be aborted.)
692 As the Finished message are message digests of the complete handshake
693 (with a total of 192 bits for TLS 1.0 and more for SSL 3.0), they can
694 be used for external authentication procedures when the authentication
695 provided by SSL/TLS is not desired or is not enough.
698 *) Enhanced support for Alpha Linux is added. Now ./config checks if
699 the host supports BWX extension and if Compaq C is present on the
700 $PATH. Just exploiting of the BWX extension results in 20-30%
701 performance kick for some algorithms, e.g. DES and RC4 to mention
702 a couple. Compaq C in turn generates ~20% faster code for MD5 and
706 *) Add support for MS "fast SGC". This is arguably a violation of the
707 SSL3/TLS protocol. Netscape SGC does two handshakes: the first with
708 weak crypto and after checking the certificate is SGC a second one
709 with strong crypto. MS SGC stops the first handshake after receiving
710 the server certificate message and sends a second client hello. Since
711 a server will typically do all the time consuming operations before
712 expecting any further messages from the client (server key exchange
713 is the most expensive) there is little difference between the two.
715 To get OpenSSL to support MS SGC we have to permit a second client
716 hello message after we have sent server done. In addition we have to
717 reset the MAC if we do get this second client hello.
720 *) Add a function 'd2i_AutoPrivateKey()' this will automatically decide
721 if a DER encoded private key is RSA or DSA traditional format. Changed
722 d2i_PrivateKey_bio() to use it. This is only needed for the "traditional"
723 format DER encoded private key. Newer code should use PKCS#8 format which
724 has the key type encoded in the ASN1 structure. Added DER private key
725 support to pkcs8 application.
728 *) SSL 3/TLS 1 servers now don't request certificates when an anonymous
729 ciphersuites has been selected (as required by the SSL 3/TLS 1
730 specifications). Exception: When SSL_VERIFY_FAIL_IF_NO_PEER_CERT
731 is set, we interpret this as a request to violate the specification
732 (the worst that can happen is a handshake failure, and 'correct'
733 behaviour would result in a handshake failure anyway).
736 *) In SSL_CTX_add_session, take into account that there might be multiple
737 SSL_SESSION structures with the same session ID (e.g. when two threads
738 concurrently obtain them from an external cache).
739 The internal cache can handle only one SSL_SESSION with a given ID,
740 so if there's a conflict, we now throw out the old one to achieve
744 *) Add OIDs for idea and blowfish in CBC mode. This will allow both
745 to be used in PKCS#5 v2.0 and S/MIME. Also add checking to
746 some routines that use cipher OIDs: some ciphers do not have OIDs
747 defined and so they cannot be used for S/MIME and PKCS#5 v2.0 for
751 *) Simplify the trust setting structure and code. Now we just have
752 two sequences of OIDs for trusted and rejected settings. These will
753 typically have values the same as the extended key usage extension
754 and any application specific purposes.
756 The trust checking code now has a default behaviour: it will just
757 check for an object with the same NID as the passed id. Functions can
758 be provided to override either the default behaviour or the behaviour
759 for a given id. SSL client, server and email already have functions
760 in place for compatibility: they check the NID and also return "trusted"
761 if the certificate is self signed.
764 *) Add d2i,i2d bio/fp functions for PrivateKey: these convert the
765 traditional format into an EVP_PKEY structure.
768 *) Add a password callback function PEM_cb() which either prompts for
769 a password if usr_data is NULL or otherwise assumes it is a null
770 terminated password. Allow passwords to be passed on command line
771 environment or config files in a few more utilities.
774 *) Add a bunch of DER and PEM functions to handle PKCS#8 format private
775 keys. Add some short names for PKCS#8 PBE algorithms and allow them
776 to be specified on the command line for the pkcs8 and pkcs12 utilities.
777 Update documentation.
780 *) Support for ASN1 "NULL" type. This could be handled before by using
781 ASN1_TYPE but there wasn't any function that would try to read a NULL
782 and produce an error if it couldn't. For compatibility we also have
783 ASN1_NULL_new() and ASN1_NULL_free() functions but these are faked and
784 don't allocate anything because they don't need to.
787 *) Initial support for MacOS is now provided. Examine INSTALL.MacOS
789 [Andy Polyakov, Roy Woods <roy@centicsystems.ca>]
791 *) Rebuild of the memory allocation routines used by OpenSSL code and
792 possibly others as well. The purpose is to make an interface that
793 provide hooks so anyone can build a separate set of allocation and
794 deallocation routines to be used by OpenSSL, for example memory
795 pool implementations, or something else, which was previously hard
796 since Malloc(), Realloc() and Free() were defined as macros having
797 the values malloc, realloc and free, respectively (except for Win32
798 compilations). The same is provided for memory debugging code.
799 OpenSSL already comes with functionality to find memory leaks, but
800 this gives people a chance to debug other memory problems.
802 With these changes, a new set of functions and macros have appeared:
804 CRYPTO_set_mem_debug_functions() [F]
805 CRYPTO_get_mem_debug_functions() [F]
806 CRYPTO_dbg_set_options() [F]
807 CRYPTO_dbg_get_options() [F]
808 CRYPTO_malloc_debug_init() [M]
810 The memory debug functions are NULL by default, unless the library
811 is compiled with CRYPTO_MDEBUG or friends is defined. If someone
812 wants to debug memory anyway, CRYPTO_malloc_debug_init() (which
813 gives the standard debugging functions that come with OpenSSL) or
814 CRYPTO_set_mem_debug_functions() (tells OpenSSL to use functions
815 provided by the library user) must be used. When the standard
816 debugging functions are used, CRYPTO_dbg_set_options can be used to
817 request additional information:
818 CRYPTO_dbg_set_options(V_CYRPTO_MDEBUG_xxx) corresponds to setting
819 the CRYPTO_MDEBUG_xxx macro when compiling the library.
821 Also, things like CRYPTO_set_mem_functions will always give the
822 expected result (the new set of functions is used for allocation
823 and deallocation) at all times, regardless of platform and compiler
826 To finish it up, some functions that were never use in any other
827 way than through macros have a new API and new semantic:
833 All macros of value have retained their old syntax.
834 [Richard Levitte and Bodo Moeller]
836 *) Some S/MIME fixes. The OID for SMIMECapabilities was wrong, the
837 ordering of SMIMECapabilities wasn't in "strength order" and there
838 was a missing NULL in the AlgorithmIdentifier for the SHA1 signature
842 *) Some ASN1 types with illegal zero length encoding (INTEGER,
843 ENUMERATED and OBJECT IDENTIFIER) choked the ASN1 routines.
844 [Frans Heymans <fheymans@isaserver.be>, modified by Steve Henson]
846 *) Merge in my S/MIME library for OpenSSL. This provides a simple
847 S/MIME API on top of the PKCS#7 code, a MIME parser (with enough
848 functionality to handle multipart/signed properly) and a utility
849 called 'smime' to call all this stuff. This is based on code I
850 originally wrote for Celo who have kindly allowed it to be
854 *) Add variants des_set_key_checked and des_set_key_unchecked of
855 des_set_key (aka des_key_sched). Global variable des_check_key
856 decides which of these is called by des_set_key; this way
857 des_check_key behaves as it always did, but applications and
858 the library itself, which was buggy for des_check_key == 1,
859 have a cleaner way to pick the version they need.
862 *) New function PKCS12_newpass() which changes the password of a
866 *) Modify X509_TRUST and X509_PURPOSE so it also uses a static and
867 dynamic mix. In both cases the ids can be used as an index into the
868 table. Also modified the X509_TRUST_add() and X509_PURPOSE_add()
869 functions so they accept a list of the field values and the
870 application doesn't need to directly manipulate the X509_TRUST
874 *) Modify the ASN1_STRING_TABLE stuff so it also uses bsearch and doesn't
878 *) Modify the way the V3 extension code looks up extensions. This now
879 works in a similar way to the object code: we have some "standard"
880 extensions in a static table which is searched with OBJ_bsearch()
881 and the application can add dynamic ones if needed. The file
882 crypto/x509v3/ext_dat.h now has the info: this file needs to be
883 updated whenever a new extension is added to the core code and kept
884 in ext_nid order. There is a simple program 'tabtest.c' which checks
885 this. New extensions are not added too often so this file can readily
886 be maintained manually.
888 There are two big advantages in doing things this way. The extensions
889 can be looked up immediately and no longer need to be "added" using
890 X509V3_add_standard_extensions(): this function now does nothing.
891 [Side note: I get *lots* of email saying the extension code doesn't
892 work because people forget to call this function]
893 Also no dynamic allocation is done unless new extensions are added:
894 so if we don't add custom extensions there is no need to call
895 X509V3_EXT_cleanup().
898 *) Modify enc utility's salting as follows: make salting the default. Add a
899 magic header, so unsalted files fail gracefully instead of just decrypting
900 to garbage. This is because not salting is a big security hole, so people
901 should be discouraged from doing it.
904 *) Fixes and enhancements to the 'x509' utility. It allowed a message
905 digest to be passed on the command line but it only used this
906 parameter when signing a certificate. Modified so all relevant
907 operations are affected by the digest parameter including the
908 -fingerprint and -x509toreq options. Also -x509toreq choked if a
909 DSA key was used because it didn't fix the digest.
912 *) Initial certificate chain verify code. Currently tests the untrusted
913 certificates for consistency with the verify purpose (which is set
914 when the X509_STORE_CTX structure is set up) and checks the pathlength.
916 There is a NO_CHAIN_VERIFY compilation option to keep the old behaviour:
917 this is because it will reject chains with invalid extensions whereas
918 every previous version of OpenSSL and SSLeay made no checks at all.
920 Trust code: checks the root CA for the relevant trust settings. Trust
921 settings have an initial value consistent with the verify purpose: e.g.
922 if the verify purpose is for SSL client use it expects the CA to be
923 trusted for SSL client use. However the default value can be changed to
924 permit custom trust settings: one example of this would be to only trust
925 certificates from a specific "secure" set of CAs.
927 Also added X509_STORE_CTX_new() and X509_STORE_CTX_free() functions
928 which should be used for version portability: especially since the
929 verify structure is likely to change more often now.
931 SSL integration. Add purpose and trust to SSL_CTX and SSL and functions
932 to set them. If not set then assume SSL clients will verify SSL servers
935 Two new options to the verify program: -untrusted allows a set of
936 untrusted certificates to be passed in and -purpose which sets the
937 intended purpose of the certificate. If a purpose is set then the
938 new chain verify code is used to check extension consistency.
941 *) Support for the authority information access extension.
944 *) Modify RSA and DSA PEM read routines to transparently handle
945 PKCS#8 format private keys. New *_PUBKEY_* functions that handle
946 public keys in a format compatible with certificate
947 SubjectPublicKeyInfo structures. Unfortunately there were already
948 functions called *_PublicKey_* which used various odd formats so
949 these are retained for compatibility: however the DSA variants were
950 never in a public release so they have been deleted. Changed dsa/rsa
951 utilities to handle the new format: note no releases ever handled public
952 keys so we should be OK.
954 The primary motivation for this change is to avoid the same fiasco
955 that dogs private keys: there are several incompatible private key
956 formats some of which are standard and some OpenSSL specific and
957 require various evil hacks to allow partial transparent handling and
958 even then it doesn't work with DER formats. Given the option anything
959 other than PKCS#8 should be dumped: but the other formats have to
960 stay in the name of compatibility.
962 With public keys and the benefit of hindsight one standard format
963 is used which works with EVP_PKEY, RSA or DSA structures: though
964 it clearly returns an error if you try to read the wrong kind of key.
966 Added a -pubkey option to the 'x509' utility to output the public key.
967 Also rename the EVP_PKEY_get_*() to EVP_PKEY_rget_*()
968 (renamed to EVP_PKEY_get1_*() in the OpenSSL 0.9.5 release) and add
969 EVP_PKEY_rset_*() functions (renamed to EVP_PKEY_set1_*())
970 that do the same as the EVP_PKEY_assign_*() except they up the
971 reference count of the added key (they don't "swallow" the
975 *) Fixes to crypto/x509/by_file.c the code to read in certificates and
976 CRLs would fail if the file contained no certificates or no CRLs:
977 added a new function to read in both types and return the number
978 read: this means that if none are read it will be an error. The
979 DER versions of the certificate and CRL reader would always fail
980 because it isn't possible to mix certificates and CRLs in DER format
981 without choking one or the other routine. Changed this to just read
982 a certificate: this is the best we can do. Also modified the code
983 in apps/verify.c to take notice of return codes: it was previously
984 attempting to read in certificates from NULL pointers and ignoring
985 any errors: this is one reason why the cert and CRL reader seemed
986 to work. It doesn't check return codes from the default certificate
987 routines: these may well fail if the certificates aren't installed.
990 *) Code to support otherName option in GeneralName.
993 *) First update to verify code. Change the verify utility
994 so it warns if it is passed a self signed certificate:
995 for consistency with the normal behaviour. X509_verify
996 has been modified to it will now verify a self signed
997 certificate if *exactly* the same certificate appears
998 in the store: it was previously impossible to trust a
999 single self signed certificate. This means that:
1000 openssl verify ss.pem
1001 now gives a warning about a self signed certificate but
1002 openssl verify -CAfile ss.pem ss.pem
1006 *) For servers, store verify_result in SSL_SESSION data structure
1007 (and add it to external session representation).
1008 This is needed when client certificate verifications fails,
1009 but an application-provided verification callback (set by
1010 SSL_CTX_set_cert_verify_callback) allows accepting the session
1011 anyway (i.e. leaves x509_store_ctx->error != X509_V_OK
1012 but returns 1): When the session is reused, we have to set
1013 ssl->verify_result to the appropriate error code to avoid
1015 [Bodo Moeller, problem pointed out by Lutz Jaenicke]
1017 *) Fix a bug in the new PKCS#7 code: it didn't consider the
1018 case in PKCS7_dataInit() where the signed PKCS7 structure
1019 didn't contain any existing data because it was being created.
1020 [Po-Cheng Chen <pocheng@nst.com.tw>, slightly modified by Steve Henson]
1022 *) Add a salt to the key derivation routines in enc.c. This
1023 forms the first 8 bytes of the encrypted file. Also add a
1024 -S option to allow a salt to be input on the command line.
1027 *) New function X509_cmp(). Oddly enough there wasn't a function
1028 to compare two certificates. We do this by working out the SHA1
1029 hash and comparing that. X509_cmp() will be needed by the trust
1033 *) SSL_get1_session() is like SSL_get_session(), but increments
1034 the reference count in the SSL_SESSION returned.
1035 [Geoff Thorpe <geoff@eu.c2.net>]
1037 *) Fix for 'req': it was adding a null to request attributes.
1038 Also change the X509_LOOKUP and X509_INFO code to handle
1039 certificate auxiliary information.
1042 *) Add support for 40 and 64 bit RC2 and RC4 algorithms: document
1046 *) Add the possibility to add extra information to the memory leak
1047 detecting output, to form tracebacks, showing from where each
1048 allocation was originated: CRYPTO_push_info("constant string") adds
1049 the string plus current file name and line number to a per-thread
1050 stack, CRYPTO_pop_info() does the obvious, CRYPTO_remove_all_info()
1051 is like calling CYRPTO_pop_info() until the stack is empty.
1052 Also updated memory leak detection code to be multi-thread-safe.
1055 *) Add options -text and -noout to pkcs7 utility and delete the
1056 encryption options which never did anything. Update docs.
1059 *) Add options to some of the utilities to allow the pass phrase
1060 to be included on either the command line (not recommended on
1061 OSes like Unix) or read from the environment. Update the
1062 manpages and fix a few bugs.
1065 *) Add a few manpages for some of the openssl commands.
1068 *) Fix the -revoke option in ca. It was freeing up memory twice,
1069 leaking and not finding already revoked certificates.
1072 *) Extensive changes to support certificate auxiliary information.
1073 This involves the use of X509_CERT_AUX structure and X509_AUX
1074 functions. An X509_AUX function such as PEM_read_X509_AUX()
1075 can still read in a certificate file in the usual way but it
1076 will also read in any additional "auxiliary information". By
1077 doing things this way a fair degree of compatibility can be
1078 retained: existing certificates can have this information added
1079 using the new 'x509' options.
1081 Current auxiliary information includes an "alias" and some trust
1082 settings. The trust settings will ultimately be used in enhanced
1083 certificate chain verification routines: currently a certificate
1084 can only be trusted if it is self signed and then it is trusted
1088 *) Fix assembler for Alpha (tested only on DEC OSF not Linux or *BSD).
1089 The problem was that one of the replacement routines had not been working
1090 since SSLeay releases. For now the offending routine has been replaced
1091 with non-optimised assembler. Even so, this now gives around 95%
1092 performance improvement for 1024 bit RSA signs.
1095 *) Hack to fix PKCS#7 decryption when used with some unorthodox RC2
1096 handling. Most clients have the effective key size in bits equal to
1097 the key length in bits: so a 40 bit RC2 key uses a 40 bit (5 byte) key.
1098 A few however don't do this and instead use the size of the decrypted key
1099 to determine the RC2 key length and the AlgorithmIdentifier to determine
1100 the effective key length. In this case the effective key length can still
1101 be 40 bits but the key length can be 168 bits for example. This is fixed
1102 by manually forcing an RC2 key into the EVP_PKEY structure because the
1103 EVP code can't currently handle unusual RC2 key sizes: it always assumes
1104 the key length and effective key length are equal.
1107 *) Add a bunch of functions that should simplify the creation of
1108 X509_NAME structures. Now you should be able to do:
1109 X509_NAME_add_entry_by_txt(nm, "CN", MBSTRING_ASC, "Steve", -1, -1, 0);
1110 and have it automatically work out the correct field type and fill in
1111 the structures. The more adventurous can try:
1112 X509_NAME_add_entry_by_txt(nm, field, MBSTRING_UTF8, str, -1, -1, 0);
1113 and it will (hopefully) work out the correct multibyte encoding.
1116 *) Change the 'req' utility to use the new field handling and multibyte
1117 copy routines. Before the DN field creation was handled in an ad hoc
1118 way in req, ca, and x509 which was rather broken and didn't support
1119 BMPStrings or UTF8Strings. Since some software doesn't implement
1120 BMPStrings or UTF8Strings yet, they can be enabled using the config file
1121 using the dirstring_type option. See the new comment in the default
1122 openssl.cnf for more info.
1125 *) Make crypto/rand/md_rand.c more robust:
1126 - Assure unique random numbers after fork().
1127 - Make sure that concurrent threads access the global counter and
1128 md serializably so that we never lose entropy in them
1129 or use exactly the same state in multiple threads.
1130 Access to the large state is not always serializable because
1131 the additional locking could be a performance killer, and
1132 md should be large enough anyway.
1135 *) New file apps/app_rand.c with commonly needed functionality
1136 for handling the random seed file.
1138 Use the random seed file in some applications that previously did not:
1140 dsaparam -genkey (which also ignored its '-rand' option),
1143 x509 (when signing).
1144 Except on systems with /dev/urandom, it is crucial to have a random
1145 seed file at least for key creation, DSA signing, and for DH exchanges;
1146 for RSA signatures we could do without one.
1148 gendh and gendsa (unlike genrsa) used to read only the first byte
1149 of each file listed in the '-rand' option. The function as previously
1150 found in genrsa is now in app_rand.c and is used by all programs
1151 that support '-rand'.
1154 *) In RAND_write_file, use mode 0600 for creating files;
1155 don't just chmod when it may be too late.
1158 *) Report an error from X509_STORE_load_locations
1159 when X509_LOOKUP_load_file or X509_LOOKUP_add_dir failed.
1162 *) New function ASN1_mbstring_copy() this copies a string in either
1163 ASCII, Unicode, Universal (4 bytes per character) or UTF8 format
1164 into an ASN1_STRING type. A mask of permissible types is passed
1165 and it chooses the "minimal" type to use or an error if not type
1169 *) Add function equivalents to the various macros in asn1.h. The old
1170 macros are retained with an M_ prefix. Code inside the library can
1171 use the M_ macros. External code (including the openssl utility)
1172 should *NOT* in order to be "shared library friendly".
1175 *) Add various functions that can check a certificate's extensions
1176 to see if it usable for various purposes such as SSL client,
1177 server or S/MIME and CAs of these types. This is currently
1178 VERY EXPERIMENTAL but will ultimately be used for certificate chain
1179 verification. Also added a -purpose flag to x509 utility to
1180 print out all the purposes.
1183 *) Add a CRYPTO_EX_DATA to X509 certificate structure and associated
1187 *) New X509V3_{X509,CRL,REVOKED}_get_d2i() functions. These will search
1188 for, obtain and decode and extension and obtain its critical flag.
1189 This allows all the necessary extension code to be handled in a
1190 single function call.
1193 *) RC4 tune-up featuring 30-40% performance improvement on most RISC
1194 platforms. See crypto/rc4/rc4_enc.c for further details.
1197 *) New -noout option to asn1parse. This causes no output to be produced
1198 its main use is when combined with -strparse and -out to extract data
1199 from a file (which may not be in ASN.1 format).
1202 *) Fix for pkcs12 program. It was hashing an invalid certificate pointer
1203 when producing the local key id.
1204 [Richard Levitte <levitte@stacken.kth.se>]
1206 *) New option -dhparam in s_server. This allows a DH parameter file to be
1207 stated explicitly. If it is not stated then it tries the first server
1208 certificate file. The previous behaviour hard coded the filename
1212 *) Add -pubin and -pubout options to the rsa and dsa commands. These allow
1213 a public key to be input or output. For example:
1214 openssl rsa -in key.pem -pubout -out pubkey.pem
1215 Also added necessary DSA public key functions to handle this.
1218 *) Fix so PKCS7_dataVerify() doesn't crash if no certificates are contained
1219 in the message. This was handled by allowing
1220 X509_find_by_issuer_and_serial() to tolerate a NULL passed to it.
1221 [Steve Henson, reported by Sampo Kellomaki <sampo@mail.neuronio.pt>]
1223 *) Fix for bug in d2i_ASN1_bytes(): other ASN1 functions add an extra null
1224 to the end of the strings whereas this didn't. This would cause problems
1225 if strings read with d2i_ASN1_bytes() were later modified.
1226 [Steve Henson, reported by Arne Ansper <arne@ats.cyber.ee>]
1228 *) Fix for base64 decode bug. When a base64 bio reads only one line of
1229 data and it contains EOF it will end up returning an error. This is
1230 caused by input 46 bytes long. The cause is due to the way base64
1231 BIOs find the start of base64 encoded data. They do this by trying a
1232 trial decode on each line until they find one that works. When they
1233 do a flag is set and it starts again knowing it can pass all the
1234 data directly through the decoder. Unfortunately it doesn't reset
1235 the context it uses. This means that if EOF is reached an attempt
1236 is made to pass two EOFs through the context and this causes the
1237 resulting error. This can also cause other problems as well. As is
1238 usual with these problems it takes *ages* to find and the fix is
1239 trivial: move one line.
1240 [Steve Henson, reported by ian@uns.ns.ac.yu (Ivan Nejgebauer) ]
1242 *) Ugly workaround to get s_client and s_server working under Windows. The
1243 old code wouldn't work because it needed to select() on sockets and the
1244 tty (for keypresses and to see if data could be written). Win32 only
1245 supports select() on sockets so we select() with a 1s timeout on the
1246 sockets and then see if any characters are waiting to be read, if none
1247 are present then we retry, we also assume we can always write data to
1248 the tty. This isn't nice because the code then blocks until we've
1249 received a complete line of data and it is effectively polling the
1250 keyboard at 1s intervals: however it's quite a bit better than not
1251 working at all :-) A dedicated Windows application might handle this
1252 with an event loop for example.
1255 *) Enhance RSA_METHOD structure. Now there are two extra methods, rsa_sign
1256 and rsa_verify. When the RSA_FLAGS_SIGN_VER option is set these functions
1257 will be called when RSA_sign() and RSA_verify() are used. This is useful
1258 if rsa_pub_dec() and rsa_priv_enc() equivalents are not available.
1259 For this to work properly RSA_public_decrypt() and RSA_private_encrypt()
1260 should *not* be used: RSA_sign() and RSA_verify() must be used instead.
1261 This necessitated the support of an extra signature type NID_md5_sha1
1262 for SSL signatures and modifications to the SSL library to use it instead
1263 of calling RSA_public_decrypt() and RSA_private_encrypt().
1266 *) Add new -verify -CAfile and -CApath options to the crl program, these
1267 will lookup a CRL issuers certificate and verify the signature in a
1268 similar way to the verify program. Tidy up the crl program so it
1269 no longer accesses structures directly. Make the ASN1 CRL parsing a bit
1270 less strict. It will now permit CRL extensions even if it is not
1271 a V2 CRL: this will allow it to tolerate some broken CRLs.
1274 *) Initialize all non-automatic variables each time one of the openssl
1275 sub-programs is started (this is necessary as they may be started
1276 multiple times from the "OpenSSL>" prompt).
1277 [Lennart Bang, Bodo Moeller]
1279 *) Preliminary compilation option RSA_NULL which disables RSA crypto without
1280 removing all other RSA functionality (this is what NO_RSA does). This
1281 is so (for example) those in the US can disable those operations covered
1282 by the RSA patent while allowing storage and parsing of RSA keys and RSA
1286 *) Non-copying interface to BIO pairs.
1287 (still largely untested)
1290 *) New function ANS1_tag2str() to convert an ASN1 tag to a descriptive
1291 ASCII string. This was handled independently in various places before.
1294 *) New functions UTF8_getc() and UTF8_putc() that parse and generate
1295 UTF8 strings a character at a time.
1298 *) Use client_version from client hello to select the protocol
1299 (s23_srvr.c) and for RSA client key exchange verification
1300 (s3_srvr.c), as required by the SSL 3.0/TLS 1.0 specifications.
1303 *) Add various utility functions to handle SPKACs, these were previously
1304 handled by poking round in the structure internals. Added new function
1305 NETSCAPE_SPKI_print() to print out SPKAC and a new utility 'spkac' to
1306 print, verify and generate SPKACs. Based on an original idea from
1307 Massimiliano Pala <madwolf@comune.modena.it> but extensively modified.
1310 *) RIPEMD160 is operational on all platforms and is back in 'make test'.
1313 *) Allow the config file extension section to be overwritten on the
1314 command line. Based on an original idea from Massimiliano Pala
1315 <madwolf@comune.modena.it>. The new option is called -extensions
1316 and can be applied to ca, req and x509. Also -reqexts to override
1317 the request extensions in req and -crlexts to override the crl extensions
1321 *) Add new feature to the SPKAC handling in ca. Now you can include
1322 the same field multiple times by preceding it by "XXXX." for example:
1325 this is the same syntax as used in the req config file.
1328 *) Allow certificate extensions to be added to certificate requests. These
1329 are specified in a 'req_extensions' option of the req section of the
1330 config file. They can be printed out with the -text option to req but
1331 are otherwise ignored at present.
1334 *) Fix a horrible bug in enc_read() in crypto/evp/bio_enc.c: if the first
1335 data read consists of only the final block it would not decrypted because
1336 EVP_CipherUpdate() would correctly report zero bytes had been decrypted.
1337 A misplaced 'break' also meant the decrypted final block might not be
1338 copied until the next read.
1341 *) Initial support for DH_METHOD. Again based on RSA_METHOD. Also added
1342 a few extra parameters to the DH structure: these will be useful if
1343 for example we want the value of 'q' or implement X9.42 DH.
1346 *) Initial support for DSA_METHOD. This is based on the RSA_METHOD and
1347 provides hooks that allow the default DSA functions or functions on a
1348 "per key" basis to be replaced. This allows hardware acceleration and
1349 hardware key storage to be handled without major modification to the
1350 library. Also added low level modexp hooks and CRYPTO_EX structure and
1351 associated functions.
1354 *) Add a new flag to memory BIOs, BIO_FLAG_MEM_RDONLY. This marks the BIO
1355 as "read only": it can't be written to and the buffer it points to will
1356 not be freed. Reading from a read only BIO is much more efficient than
1357 a normal memory BIO. This was added because there are several times when
1358 an area of memory needs to be read from a BIO. The previous method was
1359 to create a memory BIO and write the data to it, this results in two
1360 copies of the data and an O(n^2) reading algorithm. There is a new
1361 function BIO_new_mem_buf() which creates a read only memory BIO from
1362 an area of memory. Also modified the PKCS#7 routines to use read only
1366 *) Bugfix: ssl23_get_client_hello did not work properly when called in
1367 state SSL23_ST_SR_CLNT_HELLO_B, i.e. when the first 7 bytes of
1368 a SSLv2-compatible client hello for SSLv3 or TLSv1 could be read,
1369 but a retry condition occured while trying to read the rest.
1372 *) The PKCS7_ENC_CONTENT_new() function was setting the content type as
1373 NID_pkcs7_encrypted by default: this was wrong since this should almost
1374 always be NID_pkcs7_data. Also modified the PKCS7_set_type() to handle
1375 the encrypted data type: this is a more sensible place to put it and it
1376 allows the PKCS#12 code to be tidied up that duplicated this
1380 *) Changed obj_dat.pl script so it takes its input and output files on
1381 the command line. This should avoid shell escape redirection problems
1385 *) Initial support for certificate extension requests, these are included
1386 in things like Xenroll certificate requests. Included functions to allow
1387 extensions to be obtained and added.
1390 *) -crlf option to s_client and s_server for sending newlines as
1391 CRLF (as required by many protocols).
1394 Changes between 0.9.3a and 0.9.4 [09 Aug 1999]
1396 *) Install libRSAglue.a when OpenSSL is built with RSAref.
1397 [Ralf S. Engelschall]
1399 *) A few more ``#ifndef NO_FP_API / #endif'' pairs for consistency.
1400 [Andrija Antonijevic <TheAntony2@bigfoot.com>]
1402 *) Fix -startdate and -enddate (which was missing) arguments to 'ca'
1406 *) New function DSA_dup_DH, which duplicates DSA parameters/keys as
1407 DH parameters/keys (q is lost during that conversion, but the resulting
1408 DH parameters contain its length).
1410 For 1024-bit p, DSA_generate_parameters followed by DSA_dup_DH is
1411 much faster than DH_generate_parameters (which creates parameters
1412 where p = 2*q + 1), and also the smaller q makes DH computations
1413 much more efficient (160-bit exponentiation instead of 1024-bit
1414 exponentiation); so this provides a convenient way to support DHE
1415 ciphersuites in SSL/TLS servers (see ssl/ssltest.c). It is of
1416 utter importance to use
1417 SSL_CTX_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
1419 SSL_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
1420 when such DH parameters are used, because otherwise small subgroup
1421 attacks may become possible!
1424 *) Avoid memory leak in i2d_DHparams.
1427 *) Allow the -k option to be used more than once in the enc program:
1428 this allows the same encrypted message to be read by multiple recipients.
1431 *) New function OBJ_obj2txt(buf, buf_len, a, no_name), this converts
1432 an ASN1_OBJECT to a text string. If the "no_name" parameter is set then
1433 it will always use the numerical form of the OID, even if it has a short
1437 *) Added an extra RSA flag: RSA_FLAG_EXT_PKEY. Previously the rsa_mod_exp
1438 method only got called if p,q,dmp1,dmq1,iqmp components were present,
1439 otherwise bn_mod_exp was called. In the case of hardware keys for example
1440 no private key components need be present and it might store extra data
1441 in the RSA structure, which cannot be accessed from bn_mod_exp.
1442 By setting RSA_FLAG_EXT_PKEY rsa_mod_exp will always be called for
1443 private key operations.
1446 *) Added support for SPARC Linux.
1449 *) pem_password_cb function type incompatibly changed from
1450 typedef int pem_password_cb(char *buf, int size, int rwflag);
1452 ....(char *buf, int size, int rwflag, void *userdata);
1453 so that applications can pass data to their callbacks:
1454 The PEM[_ASN1]_{read,write}... functions and macros now take an
1455 additional void * argument, which is just handed through whenever
1456 the password callback is called.
1457 [Damien Miller <dmiller@ilogic.com.au>; tiny changes by Bodo Moeller]
1459 New function SSL_CTX_set_default_passwd_cb_userdata.
1461 Compatibility note: As many C implementations push function arguments
1462 onto the stack in reverse order, the new library version is likely to
1463 interoperate with programs that have been compiled with the old
1464 pem_password_cb definition (PEM_whatever takes some data that
1465 happens to be on the stack as its last argument, and the callback
1466 just ignores this garbage); but there is no guarantee whatsoever that
1469 *) The -DPLATFORM="\"$(PLATFORM)\"" definition and the similar -DCFLAGS=...
1470 (both in crypto/Makefile.ssl for use by crypto/cversion.c) caused
1471 problems not only on Windows, but also on some Unix platforms.
1472 To avoid problematic command lines, these definitions are now in an
1473 auto-generated file crypto/buildinf.h (created by crypto/Makefile.ssl
1474 for standard "make" builds, by util/mk1mf.pl for "mk1mf" builds).
1477 *) MIPS III/IV assembler module is reimplemented.
1480 *) More DES library cleanups: remove references to srand/rand and
1481 delete an unused file.
1484 *) Add support for the the free Netwide assembler (NASM) under Win32,
1485 since not many people have MASM (ml) and it can be hard to obtain.
1486 This is currently experimental but it seems to work OK and pass all
1487 the tests. Check out INSTALL.W32 for info.
1490 *) Fix memory leaks in s3_clnt.c: All non-anonymous SSL3/TLS1 connections
1491 without temporary keys kept an extra copy of the server key,
1492 and connections with temporary keys did not free everything in case
1496 *) New function RSA_check_key and new openssl rsa option -check
1497 for verifying the consistency of RSA keys.
1498 [Ulf Moeller, Bodo Moeller]
1500 *) Various changes to make Win32 compile work:
1501 1. Casts to avoid "loss of data" warnings in p5_crpt2.c
1502 2. Change unsigned int to int in b_dump.c to avoid "signed/unsigned
1503 comparison" warnings.
1504 3. Add sk_<TYPE>_sort to DEF file generator and do make update.
1507 *) Add a debugging option to PKCS#5 v2 key generation function: when
1508 you #define DEBUG_PKCS5V2 passwords, salts, iteration counts and
1509 derived keys are printed to stderr.
1512 *) Copy the flags in ASN1_STRING_dup().
1513 [Roman E. Pavlov <pre@mo.msk.ru>]
1515 *) The x509 application mishandled signing requests containing DSA
1516 keys when the signing key was also DSA and the parameters didn't match.
1518 It was supposed to omit the parameters when they matched the signing key:
1519 the verifying software was then supposed to automatically use the CA's
1520 parameters if they were absent from the end user certificate.
1522 Omitting parameters is no longer recommended. The test was also
1523 the wrong way round! This was probably due to unusual behaviour in
1524 EVP_cmp_parameters() which returns 1 if the parameters match.
1525 This meant that parameters were omitted when they *didn't* match and
1526 the certificate was useless. Certificates signed with 'ca' didn't have
1528 [Steve Henson, reported by Doug Erickson <Doug.Erickson@Part.NET>]
1530 *) Memory leak checking (-DCRYPTO_MDEBUG) had some problems.
1531 The interface is as follows:
1532 Applications can use
1533 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON) aka MemCheck_start(),
1534 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_OFF) aka MemCheck_stop();
1535 "off" is now the default.
1536 The library internally uses
1537 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_DISABLE) aka MemCheck_off(),
1538 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ENABLE) aka MemCheck_on()
1539 to disable memory-checking temporarily.
1541 Some inconsistent states that previously were possible (and were
1542 even the default) are now avoided.
1544 -DCRYPTO_MDEBUG_TIME is new and additionally stores the current time
1545 with each memory chunk allocated; this is occasionally more helpful
1546 than just having a counter.
1548 -DCRYPTO_MDEBUG_THREAD is also new and adds the thread ID.
1550 -DCRYPTO_MDEBUG_ALL enables all of the above, plus any future
1554 *) Introduce "mode" for SSL structures (with defaults in SSL_CTX),
1555 which largely parallels "options", but is for changing API behaviour,
1556 whereas "options" are about protocol behaviour.
1557 Initial "mode" flags are:
1559 SSL_MODE_ENABLE_PARTIAL_WRITE Allow SSL_write to report success when
1560 a single record has been written.
1561 SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER Don't insist that SSL_write
1562 retries use the same buffer location.
1563 (But all of the contents must be
1567 *) Bugfix: SSL_set_mode ignored its parameter, only SSL_CTX_set_mode
1570 *) Fix problems with no-hmac etc.
1571 [Ulf Möller, pointed out by Brian Wellington <bwelling@tislabs.com>]
1573 *) New functions RSA_get_default_method(), RSA_set_method() and
1574 RSA_get_method(). These allows replacement of RSA_METHODs without having
1575 to mess around with the internals of an RSA structure.
1578 *) Fix memory leaks in DSA_do_sign and DSA_is_prime.
1579 Also really enable memory leak checks in openssl.c and in some
1581 [Chad C. Mulligan, Bodo Moeller]
1583 *) Fix a bug in d2i_ASN1_INTEGER() and i2d_ASN1_INTEGER() which can mess
1584 up the length of negative integers. This has now been simplified to just
1585 store the length when it is first determined and use it later, rather
1586 than trying to keep track of where data is copied and updating it to
1588 [Steve Henson, reported by Brien Wheeler
1589 <bwheeler@authentica-security.com>]
1591 *) Add a new function PKCS7_signatureVerify. This allows the verification
1592 of a PKCS#7 signature but with the signing certificate passed to the
1593 function itself. This contrasts with PKCS7_dataVerify which assumes the
1594 certificate is present in the PKCS#7 structure. This isn't always the
1595 case: certificates can be omitted from a PKCS#7 structure and be
1596 distributed by "out of band" means (such as a certificate database).
1599 *) Complete the PEM_* macros with DECLARE_PEM versions to replace the
1600 function prototypes in pem.h, also change util/mkdef.pl to add the
1601 necessary function names.
1604 *) mk1mf.pl (used by Windows builds) did not properly read the
1605 options set by Configure in the top level Makefile, and Configure
1606 was not even able to write more than one option correctly.
1607 Fixed, now "no-idea no-rc5 -DCRYPTO_MDEBUG" etc. works as intended.
1610 *) New functions CONF_load_bio() and CONF_load_fp() to allow a config
1611 file to be loaded from a BIO or FILE pointer. The BIO version will
1612 for example allow memory BIOs to contain config info.
1615 *) New function "CRYPTO_num_locks" that returns CRYPTO_NUM_LOCKS.
1616 Whoever hopes to achieve shared-library compatibility across versions
1617 must use this, not the compile-time macro.
1618 (Exercise 0.9.4: Which is the minimum library version required by
1620 Note: All this applies only to multi-threaded programs, others don't
1624 *) Add missing case to s3_clnt.c state machine -- one of the new SSL tests
1625 through a BIO pair triggered the default case, i.e.
1626 SSLerr(...,SSL_R_UNKNOWN_STATE).
1629 *) New "BIO pair" concept (crypto/bio/bss_bio.c) so that applications
1630 can use the SSL library even if none of the specific BIOs is
1634 *) Fix a bug in i2d_DSAPublicKey() which meant it returned the wrong value
1635 for the encoded length.
1636 [Jeon KyoungHo <khjeon@sds.samsung.co.kr>]
1638 *) Add initial documentation of the X509V3 functions.
1641 *) Add a new pair of functions PEM_write_PKCS8PrivateKey() and
1642 PEM_write_bio_PKCS8PrivateKey() that are equivalent to
1643 PEM_write_PrivateKey() and PEM_write_bio_PrivateKey() but use the more
1644 secure PKCS#8 private key format with a high iteration count.
1647 *) Fix determination of Perl interpreter: A perl or perl5
1648 _directory_ in $PATH was also accepted as the interpreter.
1649 [Ralf S. Engelschall]
1651 *) Fix demos/sign/sign.c: well there wasn't anything strictly speaking
1652 wrong with it but it was very old and did things like calling
1653 PEM_ASN1_read() directly and used MD5 for the hash not to mention some
1657 *) Fix demos/selfsign.c: it used obsolete and deleted functions, changed
1658 to use the new extension code.
1661 *) Implement the PEM_read/PEM_write functions in crypto/pem/pem_all.c
1662 with macros. This should make it easier to change their form, add extra
1663 arguments etc. Fix a few PEM prototypes which didn't have cipher as a
1667 *) Add to configuration table a new entry that can specify an alternative
1668 name for unistd.h (for pre-POSIX systems); we need this for NeXTstep,
1669 according to Mark Crispin <MRC@Panda.COM>.
1673 *) DES CBC did not update the IV. Weird.
1676 des_cbc_encrypt does not update the IV, but des_ncbc_encrypt does.
1677 Changing the behaviour of the former might break existing programs --
1678 where IV updating is needed, des_ncbc_encrypt can be used.
1681 *) When bntest is run from "make test" it drives bc to check its
1682 calculations, as well as internally checking them. If an internal check
1683 fails, it needs to cause bc to give a non-zero result or make test carries
1684 on without noticing the failure. Fixed.
1687 *) DES library cleanups.
1690 *) Add support for PKCS#5 v2.0 PBE algorithms. This will permit PKCS#8 to be
1691 used with any cipher unlike PKCS#5 v1.5 which can at most handle 64 bit
1692 ciphers. NOTE: although the key derivation function has been verified
1693 against some published test vectors it has not been extensively tested
1694 yet. Added a -v2 "cipher" option to pkcs8 application to allow the use
1698 *) Instead of "mkdir -p", which is not fully portable, use new
1699 Perl script "util/mkdir-p.pl".
1702 *) Rewrite the way password based encryption (PBE) is handled. It used to
1703 assume that the ASN1 AlgorithmIdentifier parameter was a PBEParameter
1704 structure. This was true for the PKCS#5 v1.5 and PKCS#12 PBE algorithms
1705 but doesn't apply to PKCS#5 v2.0 where it can be something else. Now
1706 the 'parameter' field of the AlgorithmIdentifier is passed to the
1707 underlying key generation function so it must do its own ASN1 parsing.
1708 This has also changed the EVP_PBE_CipherInit() function which now has a
1709 'parameter' argument instead of literal salt and iteration count values
1710 and the function EVP_PBE_ALGOR_CipherInit() has been deleted.
1713 *) Support for PKCS#5 v1.5 compatible password based encryption algorithms
1714 and PKCS#8 functionality. New 'pkcs8' application linked to openssl.
1715 Needed to change the PEM_STRING_EVP_PKEY value which was just "PRIVATE
1716 KEY" because this clashed with PKCS#8 unencrypted string. Since this
1717 value was just used as a "magic string" and not used directly its
1718 value doesn't matter.
1721 *) Introduce some semblance of const correctness to BN. Shame C doesn't
1725 *) "linux-sparc64" configuration (ultrapenguin).
1726 [Ray Miller <ray.miller@oucs.ox.ac.uk>]
1727 "linux-sparc" configuration.
1728 [Christian Forster <fo@hawo.stw.uni-erlangen.de>]
1730 *) config now generates no-xxx options for missing ciphers.
1733 *) Support the EBCDIC character set (work in progress).
1734 File ebcdic.c not yet included because it has a different license.
1735 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
1737 *) Support BS2000/OSD-POSIX.
1738 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
1740 *) Make callbacks for key generation use void * instead of char *.
1743 *) Make S/MIME samples compile (not yet tested).
1746 *) Additional typesafe stacks.
1749 *) New configuration variants "bsdi-elf-gcc" (BSD/OS 4.x).
1753 Changes between 0.9.3 and 0.9.3a [29 May 1999]
1755 *) New configuration variant "sco5-gcc".
1757 *) Updated some demos.
1758 [Sean O Riordain, Wade Scholine]
1760 *) Add missing BIO_free at exit of pkcs12 application.
1763 *) Fix memory leak in conf.c.
1766 *) Updates for Win32 to assembler version of MD5.
1769 *) Set #! path to perl in apps/der_chop to where we found it
1770 instead of using a fixed path.
1773 *) SHA library changes for irix64-mips4-cc.
1776 *) Improvements for VMS support.
1780 Changes between 0.9.2b and 0.9.3 [24 May 1999]
1782 *) Bignum library bug fix. IRIX 6 passes "make test" now!
1783 This also avoids the problems with SC4.2 and unpatched SC5.
1784 [Andy Polyakov <appro@fy.chalmers.se>]
1786 *) New functions sk_num, sk_value and sk_set to replace the previous macros.
1787 These are required because of the typesafe stack would otherwise break
1788 existing code. If old code used a structure member which used to be STACK
1789 and is now STACK_OF (for example cert in a PKCS7_SIGNED structure) with
1790 sk_num or sk_value it would produce an error because the num, data members
1791 are not present in STACK_OF. Now it just produces a warning. sk_set
1792 replaces the old method of assigning a value to sk_value
1793 (e.g. sk_value(x, i) = y) which the library used in a few cases. Any code
1794 that does this will no longer work (and should use sk_set instead) but
1795 this could be regarded as a "questionable" behaviour anyway.
1798 *) Fix most of the other PKCS#7 bugs. The "experimental" code can now
1799 correctly handle encrypted S/MIME data.
1802 *) Change type of various DES function arguments from des_cblock
1803 (which means, in function argument declarations, pointer to char)
1804 to des_cblock * (meaning pointer to array with 8 char elements),
1805 which allows the compiler to do more typechecking; it was like
1806 that back in SSLeay, but with lots of ugly casts.
1808 Introduce new type const_des_cblock.
1811 *) Reorganise the PKCS#7 library and get rid of some of the more obvious
1812 problems: find RecipientInfo structure that matches recipient certificate
1813 and initialise the ASN1 structures properly based on passed cipher.
1816 *) Belatedly make the BN tests actually check the results.
1819 *) Fix the encoding and decoding of negative ASN1 INTEGERS and conversion
1820 to and from BNs: it was completely broken. New compilation option
1821 NEG_PUBKEY_BUG to allow for some broken certificates that encode public
1822 key elements as negative integers.
1825 *) Reorganize and speed up MD5.
1826 [Andy Polyakov <appro@fy.chalmers.se>]
1829 [Richard Levitte <richard@levitte.org>]
1831 *) New option -out to asn1parse to allow the parsed structure to be
1832 output to a file. This is most useful when combined with the -strparse
1833 option to examine the output of things like OCTET STRINGS.
1836 *) Make SSL library a little more fool-proof by not requiring any longer
1837 that SSL_set_{accept,connect}_state be called before
1838 SSL_{accept,connect} may be used (SSL_set_..._state is omitted
1839 in many applications because usually everything *appeared* to work as
1840 intended anyway -- now it really works as intended).
1843 *) Move openssl.cnf out of lib/.
1846 *) Fix various things to let OpenSSL even pass ``egcc -pipe -O2 -Wall
1847 -Wshadow -Wpointer-arith -Wcast-align -Wmissing-prototypes
1848 -Wmissing-declarations -Wnested-externs -Winline'' with EGCS 1.1.2+
1849 [Ralf S. Engelschall]
1851 *) Various fixes to the EVP and PKCS#7 code. It may now be able to
1852 handle PKCS#7 enveloped data properly.
1853 [Sebastian Akerman <sak@parallelconsulting.com>, modified by Steve]
1855 *) Create a duplicate of the SSL_CTX's CERT in SSL_new instead of
1856 copying pointers. The cert_st handling is changed by this in
1857 various ways (and thus what used to be known as ctx->default_cert
1858 is now called ctx->cert, since we don't resort to s->ctx->[default_]cert
1859 any longer when s->cert does not give us what we need).
1860 ssl_cert_instantiate becomes obsolete by this change.
1861 As soon as we've got the new code right (possibly it already is?),
1862 we have solved a couple of bugs of the earlier code where s->cert
1863 was used as if it could not have been shared with other SSL structures.
1865 Note that using the SSL API in certain dirty ways now will result
1866 in different behaviour than observed with earlier library versions:
1867 Changing settings for an SSL_CTX *ctx after having done s = SSL_new(ctx)
1868 does not influence s as it used to.
1870 In order to clean up things more thoroughly, inside SSL_SESSION
1871 we don't use CERT any longer, but a new structure SESS_CERT
1872 that holds per-session data (if available); currently, this is
1873 the peer's certificate chain and, for clients, the server's certificate
1874 and temporary key. CERT holds only those values that can have
1875 meaningful defaults in an SSL_CTX.
1878 *) New function X509V3_EXT_i2d() to create an X509_EXTENSION structure
1879 from the internal representation. Various PKCS#7 fixes: remove some
1880 evil casts and set the enc_dig_alg field properly based on the signing
1884 *) Allow PKCS#12 password to be set from the command line or the
1885 environment. Let 'ca' get its config file name from the environment
1886 variables "OPENSSL_CONF" or "SSLEAY_CONF" (for consistency with 'req'
1890 *) Allow certificate policies extension to use an IA5STRING for the
1891 organization field. This is contrary to the PKIX definition but
1892 VeriSign uses it and IE5 only recognises this form. Document 'x509'
1896 *) Add PEDANTIC compiler flag to allow compilation with gcc -pedantic,
1897 without disallowing inline assembler and the like for non-pedantic builds.
1900 *) Support Borland C++ builder.
1901 [Janez Jere <jj@void.si>, modified by Ulf Möller]
1906 *) SHA-1 cleanups and performance enhancements.
1907 [Andy Polyakov <appro@fy.chalmers.se>]
1909 *) Sparc v8plus assembler for the bignum library.
1910 [Andy Polyakov <appro@fy.chalmers.se>]
1912 *) Accept any -xxx and +xxx compiler options in Configure.
1915 *) Update HPUX configuration.
1918 *) Add missing sk_<type>_unshift() function to safestack.h
1919 [Ralf S. Engelschall]
1921 *) New function SSL_CTX_use_certificate_chain_file that sets the
1922 "extra_cert"s in addition to the certificate. (This makes sense
1923 only for "PEM" format files, as chains as a whole are not
1927 *) Support verify_depth from the SSL API.
1928 x509_vfy.c had what can be considered an off-by-one-error:
1929 Its depth (which was not part of the external interface)
1930 was actually counting the number of certificates in a chain;
1931 now it really counts the depth.
1934 *) Bugfix in crypto/x509/x509_cmp.c: The SSLerr macro was used
1935 instead of X509err, which often resulted in confusing error
1936 messages since the error codes are not globally unique
1937 (e.g. an alleged error in ssl3_accept when a certificate
1938 didn't match the private key).
1940 *) New function SSL_CTX_set_session_id_context that allows to set a default
1941 value (so that you don't need SSL_set_session_id_context for each
1942 connection using the SSL_CTX).
1945 *) OAEP decoding bug fix.
1948 *) Support INSTALL_PREFIX for package builders, as proposed by
1952 *) New Configure options "threads" and "no-threads". For systems
1953 where the proper compiler options are known (currently Solaris
1954 and Linux), "threads" is the default.
1957 *) New script util/mklink.pl as a faster substitute for util/mklink.sh.
1960 *) Install various scripts to $(OPENSSLDIR)/misc, not to
1961 $(INSTALLTOP)/bin -- they shouldn't clutter directories
1962 such as /usr/local/bin.
1965 *) "make linux-shared" to build shared libraries.
1966 [Niels Poppe <niels@netbox.org>]
1968 *) New Configure option no-<cipher> (rsa, idea, rc5, ...).
1971 *) Add the PKCS#12 API documentation to openssl.txt. Preliminary support for
1972 extension adding in x509 utility.
1975 *) Remove NOPROTO sections and error code comments.
1978 *) Partial rewrite of the DEF file generator to now parse the ANSI
1982 *) New Configure options --prefix=DIR and --openssldir=DIR.
1985 *) Complete rewrite of the error code script(s). It is all now handled
1986 by one script at the top level which handles error code gathering,
1987 header rewriting and C source file generation. It should be much better
1988 than the old method: it now uses a modified version of Ulf's parser to
1989 read the ANSI prototypes in all header files (thus the old K&R definitions
1990 aren't needed for error creation any more) and do a better job of
1991 translating function codes into names. The old 'ASN1 error code imbedded
1992 in a comment' is no longer necessary and it doesn't use .err files which
1993 have now been deleted. Also the error code call doesn't have to appear all
1994 on one line (which resulted in some large lines...).
1997 *) Change #include filenames from <foo.h> to <openssl/foo.h>.
2000 *) Change behaviour of ssl2_read when facing length-0 packets: Don't return
2001 0 (which usually indicates a closed connection), but continue reading.
2004 *) Fix some race conditions.
2007 *) Add support for CRL distribution points extension. Add Certificate
2008 Policies and CRL distribution points documentation.
2011 *) Move the autogenerated header file parts to crypto/opensslconf.h.
2014 *) Fix new 56-bit DES export ciphersuites: they were using 7 bytes instead of
2015 8 of keying material. Merlin has also confirmed interop with this fix
2016 between OpenSSL and Baltimore C/SSL 2.0 and J/SSL 2.0.
2017 [Merlin Hughes <merlin@baltimore.ie>]
2019 *) Fix lots of warnings.
2020 [Richard Levitte <levitte@stacken.kth.se>]
2022 *) In add_cert_dir() in crypto/x509/by_dir.c, break out of the loop if
2023 the directory spec didn't end with a LIST_SEPARATOR_CHAR.
2024 [Richard Levitte <levitte@stacken.kth.se>]
2026 *) Fix problems with sizeof(long) == 8.
2027 [Andy Polyakov <appro@fy.chalmers.se>]
2029 *) Change functions to ANSI C.
2032 *) Fix typos in error codes.
2033 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>, Ulf Möller]
2035 *) Remove defunct assembler files from Configure.
2038 *) SPARC v8 assembler BIGNUM implementation.
2039 [Andy Polyakov <appro@fy.chalmers.se>]
2041 *) Support for Certificate Policies extension: both print and set.
2042 Various additions to support the r2i method this uses.
2045 *) A lot of constification, and fix a bug in X509_NAME_oneline() that could
2046 return a const string when you are expecting an allocated buffer.
2049 *) Add support for ASN1 types UTF8String and VISIBLESTRING, also the CHOICE
2050 types DirectoryString and DisplayText.
2053 *) Add code to allow r2i extensions to access the configuration database,
2054 add an LHASH database driver and add several ctx helper functions.
2057 *) Fix an evil bug in bn_expand2() which caused various BN functions to
2058 fail when they extended the size of a BIGNUM.
2061 *) Various utility functions to handle SXNet extension. Modify mkdef.pl to
2062 support typesafe stack.
2065 *) Fix typo in SSL_[gs]et_options().
2066 [Nils Frostberg <nils@medcom.se>]
2068 *) Delete various functions and files that belonged to the (now obsolete)
2069 old X509V3 handling code.
2072 *) New Configure option "rsaref".
2075 *) Don't auto-generate pem.h.
2078 *) Introduce type-safe ASN.1 SETs.
2081 *) Convert various additional casted stacks to type-safe STACK_OF() variants.
2082 [Ben Laurie, Ralf S. Engelschall, Steve Henson]
2084 *) Introduce type-safe STACKs. This will almost certainly break lots of code
2085 that links with OpenSSL (well at least cause lots of warnings), but fear
2086 not: the conversion is trivial, and it eliminates loads of evil casts. A
2087 few STACKed things have been converted already. Feel free to convert more.
2088 In the fullness of time, I'll do away with the STACK type altogether.
2091 *) Add `openssl ca -revoke <certfile>' facility which revokes a certificate
2092 specified in <certfile> by updating the entry in the index.txt file.
2093 This way one no longer has to edit the index.txt file manually for
2094 revoking a certificate. The -revoke option does the gory details now.
2095 [Massimiliano Pala <madwolf@openca.org>, Ralf S. Engelschall]
2097 *) Fix `openssl crl -noout -text' combination where `-noout' killed the
2098 `-text' option at all and this way the `-noout -text' combination was
2099 inconsistent in `openssl crl' with the friends in `openssl x509|rsa|dsa'.
2100 [Ralf S. Engelschall]
2102 *) Make sure a corresponding plain text error message exists for the
2103 X509_V_ERR_CERT_REVOKED/23 error number which can occur when a
2104 verify callback function determined that a certificate was revoked.
2105 [Ralf S. Engelschall]
2107 *) Bugfix: In test/testenc, don't test "openssl <cipher>" for
2108 ciphers that were excluded, e.g. by -DNO_IDEA. Also, test
2109 all available cipers including rc5, which was forgotten until now.
2110 In order to let the testing shell script know which algorithms
2111 are available, a new (up to now undocumented) command
2112 "openssl list-cipher-commands" is used.
2115 *) Bugfix: s_client occasionally would sleep in select() when
2116 it should have checked SSL_pending() first.
2119 *) New functions DSA_do_sign and DSA_do_verify to provide access to
2120 the raw DSA values prior to ASN.1 encoding.
2123 *) Tweaks to Configure
2124 [Niels Poppe <niels@netbox.org>]
2126 *) Add support for PKCS#5 v2.0 ASN1 PBES2 structures. No other support,
2130 *) New variables $(RANLIB) and $(PERL) in the Makefiles.
2133 *) New config option to avoid instructions that are illegal on the 80386.
2134 The default code is faster, but requires at least a 486.
2137 *) Got rid of old SSL2_CLIENT_VERSION (inconsistently used) and
2138 SSL2_SERVER_VERSION (not used at all) macros, which are now the
2139 same as SSL2_VERSION anyway.
2142 *) New "-showcerts" option for s_client.
2145 *) Still more PKCS#12 integration. Add pkcs12 application to openssl
2146 application. Various cleanups and fixes.
2149 *) More PKCS#12 integration. Add new pkcs12 directory with Makefile.ssl and
2150 modify error routines to work internally. Add error codes and PBE init
2151 to library startup routines.
2154 *) Further PKCS#12 integration. Added password based encryption, PKCS#8 and
2155 packing functions to asn1 and evp. Changed function names and error
2156 codes along the way.
2159 *) PKCS12 integration: and so it begins... First of several patches to
2160 slowly integrate PKCS#12 functionality into OpenSSL. Add PKCS#12
2161 objects to objects.h
2164 *) Add a new 'indent' option to some X509V3 extension code. Initial ASN1
2165 and display support for Thawte strong extranet extension.
2168 *) Add LinuxPPC support.
2169 [Jeff Dubrule <igor@pobox.org>]
2171 *) Get rid of redundant BN file bn_mulw.c, and rename bn_div64 to
2172 bn_div_words in alpha.s.
2173 [Hannes Reinecke <H.Reinecke@hw.ac.uk> and Ben Laurie]
2175 *) Make sure the RSA OAEP test is skipped under -DRSAref because
2176 OAEP isn't supported when OpenSSL is built with RSAref.
2177 [Ulf Moeller <ulf@fitug.de>]
2179 *) Move definitions of IS_SET/IS_SEQUENCE inside crypto/asn1/asn1.h
2180 so they no longer are missing under -DNOPROTO.
2181 [Soren S. Jorvang <soren@t.dk>]
2184 Changes between 0.9.1c and 0.9.2b [22 Mar 1999]
2186 *) Make SSL_get_peer_cert_chain() work in servers. Unfortunately, it still
2187 doesn't work when the session is reused. Coming soon!
2190 *) Fix a security hole, that allows sessions to be reused in the wrong
2191 context thus bypassing client cert protection! All software that uses
2192 client certs and session caches in multiple contexts NEEDS PATCHING to
2193 allow session reuse! A fuller solution is in the works.
2194 [Ben Laurie, problem pointed out by Holger Reif, Bodo Moeller (and ???)]
2196 *) Some more source tree cleanups (removed obsolete files
2197 crypto/bf/asm/bf586.pl, test/test.txt and crypto/sha/asm/f.s; changed
2198 permission on "config" script to be executable) and a fix for the INSTALL
2200 [Ulf Moeller <ulf@fitug.de>]
2202 *) Remove some legacy and erroneous uses of malloc, free instead of
2204 [Lennart Bang <lob@netstream.se>, with minor changes by Steve]
2206 *) Make rsa_oaep_test return non-zero on error.
2207 [Ulf Moeller <ulf@fitug.de>]
2209 *) Add support for native Solaris shared libraries. Configure
2210 solaris-sparc-sc4-pic, make, then run shlib/solaris-sc4.sh. It'd be nice
2211 if someone would make that last step automatic.
2212 [Matthias Loepfe <Matthias.Loepfe@AdNovum.CH>]
2214 *) ctx_size was not built with the right compiler during "make links". Fixed.
2217 *) Change the meaning of 'ALL' in the cipher list. It now means "everything
2218 except NULL ciphers". This means the default cipher list will no longer
2219 enable NULL ciphers. They need to be specifically enabled e.g. with
2220 the string "DEFAULT:eNULL".
2223 *) Fix to RSA private encryption routines: if p < q then it would
2224 occasionally produce an invalid result. This will only happen with
2225 externally generated keys because OpenSSL (and SSLeay) ensure p > q.
2228 *) Be less restrictive and allow also `perl util/perlpath.pl
2229 /path/to/bin/perl' in addition to `perl util/perlpath.pl /path/to/bin',
2230 because this way one can also use an interpreter named `perl5' (which is
2231 usually the name of Perl 5.xxx on platforms where an Perl 4.x is still
2232 installed as `perl').
2233 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
2235 *) Let util/clean-depend.pl work also with older Perl 5.00x versions.
2236 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
2238 *) Fix Makefile.org so CC,CFLAG etc are passed to 'make links' add
2239 advapi32.lib to Win32 build and change the pem test comparision
2240 to fc.exe (thanks to Ulrich Kroener <kroneru@yahoo.com> for the
2241 suggestion). Fix misplaced ASNI prototypes and declarations in evp.h
2242 and crypto/des/ede_cbcm_enc.c.
2245 *) DES quad checksum was broken on big-endian architectures. Fixed.
2248 *) Comment out two functions in bio.h that aren't implemented. Fix up the
2249 Win32 test batch file so it (might) work again. The Win32 test batch file
2250 is horrible: I feel ill....
2253 *) Move various #ifdefs around so NO_SYSLOG, NO_DIRENT etc are now selected
2254 in e_os.h. Audit of header files to check ANSI and non ANSI
2255 sections: 10 functions were absent from non ANSI section and not exported
2256 from Windows DLLs. Fixed up libeay.num for new functions.
2259 *) Make `openssl version' output lines consistent.
2260 [Ralf S. Engelschall]
2262 *) Fix Win32 symbol export lists for BIO functions: Added
2263 BIO_get_ex_new_index, BIO_get_ex_num, BIO_get_ex_data and BIO_set_ex_data
2264 to ms/libeay{16,32}.def.
2265 [Ralf S. Engelschall]
2267 *) Second round of fixing the OpenSSL perl/ stuff. It now at least compiled
2268 fine under Unix and passes some trivial tests I've now added. But the
2269 whole stuff is horribly incomplete, so a README.1ST with a disclaimer was
2270 added to make sure no one expects that this stuff really works in the
2271 OpenSSL 0.9.2 release. Additionally I've started to clean the XS sources
2272 up and fixed a few little bugs and inconsistencies in OpenSSL.{pm,xs} and
2274 [Ralf S. Engelschall]
2276 *) Fix the generation of two part addresses in perl.
2277 [Kenji Miyake <kenji@miyake.org>, integrated by Ben Laurie]
2279 *) Add config entry for Linux on MIPS.
2280 [John Tobey <jtobey@channel1.com>]
2282 *) Make links whenever Configure is run, unless we are on Windoze.
2285 *) Permit extensions to be added to CRLs using crl_section in openssl.cnf.
2286 Currently only issuerAltName and AuthorityKeyIdentifier make any sense
2290 *) Add a useful kludge to allow package maintainers to specify compiler and
2291 other platforms details on the command line without having to patch the
2292 Configure script everytime: One now can use ``perl Configure
2293 <id>:<details>'', i.e. platform ids are allowed to have details appended
2294 to them (seperated by colons). This is treated as there would be a static
2295 pre-configured entry in Configure's %table under key <id> with value
2296 <details> and ``perl Configure <id>'' is called. So, when you want to
2297 perform a quick test-compile under FreeBSD 3.1 with pgcc and without
2298 assembler stuff you can use ``perl Configure "FreeBSD-elf:pgcc:-O6:::"''
2299 now, which overrides the FreeBSD-elf entry on-the-fly.
2300 [Ralf S. Engelschall]
2302 *) Disable new TLS1 ciphersuites by default: they aren't official yet.
2305 *) Allow DSO flags like -fpic, -fPIC, -KPIC etc. to be specified
2306 on the `perl Configure ...' command line. This way one can compile
2307 OpenSSL libraries with Position Independent Code (PIC) which is needed
2308 for linking it into DSOs.
2309 [Ralf S. Engelschall]
2311 *) Remarkably, export ciphers were totally broken and no-one had noticed!
2315 *) Cleaned up the LICENSE document: The official contact for any license
2316 questions now is the OpenSSL core team under openssl-core@openssl.org.
2317 And add a paragraph about the dual-license situation to make sure people
2318 recognize that _BOTH_ the OpenSSL license _AND_ the SSLeay license apply
2319 to the OpenSSL toolkit.
2320 [Ralf S. Engelschall]
2322 *) General source tree makefile cleanups: Made `making xxx in yyy...'
2323 display consistent in the source tree and replaced `/bin/rm' by `rm'.
2324 Additonally cleaned up the `make links' target: Remove unnecessary
2325 semicolons, subsequent redundant removes, inline point.sh into mklink.sh
2326 to speed processing and no longer clutter the display with confusing
2327 stuff. Instead only the actually done links are displayed.
2328 [Ralf S. Engelschall]
2330 *) Permit null encryption ciphersuites, used for authentication only. It used
2331 to be necessary to set the preprocessor define SSL_ALLOW_ENULL to do this.
2332 It is now necessary to set SSL_FORBID_ENULL to prevent the use of null
2336 *) Add a bunch of fixes to the PKCS#7 stuff. It used to sometimes reorder
2337 signed attributes when verifying signatures (this would break them),
2338 the detached data encoding was wrong and public keys obtained using
2339 X509_get_pubkey() weren't freed.
2342 *) Add text documentation for the BUFFER functions. Also added a work around
2343 to a Win95 console bug. This was triggered by the password read stuff: the
2344 last character typed gets carried over to the next fread(). If you were
2345 generating a new cert request using 'req' for example then the last
2346 character of the passphrase would be CR which would then enter the first
2350 *) Added the new `Includes OpenSSL Cryptography Software' button as
2351 doc/openssl_button.{gif,html} which is similar in style to the old SSLeay
2352 button and can be used by applications based on OpenSSL to show the
2353 relationship to the OpenSSL project.
2354 [Ralf S. Engelschall]
2356 *) Remove confusing variables in function signatures in files
2357 ssl/ssl_lib.c and ssl/ssl.h.
2358 [Lennart Bong <lob@kulthea.stacken.kth.se>]
2360 *) Don't install bss_file.c under PREFIX/include/
2361 [Lennart Bong <lob@kulthea.stacken.kth.se>]
2363 *) Get the Win32 compile working again. Modify mkdef.pl so it can handle
2364 functions that return function pointers and has support for NT specific
2365 stuff. Fix mk1mf.pl and VC-32.pl to support NT differences also. Various
2366 #ifdef WIN32 and WINNTs sprinkled about the place and some changes from
2367 unsigned to signed types: this was killing the Win32 compile.
2370 *) Add new certificate file to stack functions,
2371 SSL_add_dir_cert_subjects_to_stack() and
2372 SSL_add_file_cert_subjects_to_stack(). These largely supplant
2373 SSL_load_client_CA_file(), and can be used to add multiple certs easily
2374 to a stack (usually this is then handed to SSL_CTX_set_client_CA_list()).
2375 This means that Apache-SSL and similar packages don't have to mess around
2376 to add as many CAs as they want to the preferred list.
2379 *) Experiment with doxygen documentation. Currently only partially applied to
2381 See http://www.stack.nl/~dimitri/doxygen/index.html, and run doxygen with
2382 openssl.doxy as the configuration file.
2385 *) Get rid of remaining C++-style comments which strict C compilers hate.
2386 [Ralf S. Engelschall, pointed out by Carlos Amengual]
2388 *) Changed BN_RECURSION in bn_mont.c to BN_RECURSION_MONT so it is not
2389 compiled in by default: it has problems with large keys.
2392 *) Add a bunch of SSL_xxx() functions for configuring the temporary RSA and
2393 DH private keys and/or callback functions which directly correspond to
2394 their SSL_CTX_xxx() counterparts but work on a per-connection basis. This
2395 is needed for applications which have to configure certificates on a
2396 per-connection basis (e.g. Apache+mod_ssl) instead of a per-context basis
2398 For the RSA certificate situation is makes no difference, but
2399 for the DSA certificate situation this fixes the "no shared cipher"
2400 problem where the OpenSSL cipher selection procedure failed because the
2401 temporary keys were not overtaken from the context and the API provided
2402 no way to reconfigure them.
2403 The new functions now let applications reconfigure the stuff and they
2404 are in detail: SSL_need_tmp_RSA, SSL_set_tmp_rsa, SSL_set_tmp_dh,
2405 SSL_set_tmp_rsa_callback and SSL_set_tmp_dh_callback. Additionally a new
2406 non-public-API function ssl_cert_instantiate() is used as a helper
2407 function and also to reduce code redundancy inside ssl_rsa.c.
2408 [Ralf S. Engelschall]
2410 *) Move s_server -dcert and -dkey options out of the undocumented feature
2411 area because they are useful for the DSA situation and should be
2412 recognized by the users.
2413 [Ralf S. Engelschall]
2415 *) Fix the cipher decision scheme for export ciphers: the export bits are
2416 *not* within SSL_MKEY_MASK or SSL_AUTH_MASK, they are within
2417 SSL_EXP_MASK. So, the original variable has to be used instead of the
2418 already masked variable.
2419 [Richard Levitte <levitte@stacken.kth.se>]
2421 *) Fix 'port' variable from `int' to `unsigned int' in crypto/bio/b_sock.c
2422 [Richard Levitte <levitte@stacken.kth.se>]
2424 *) Change type of another md_len variable in pk7_doit.c:PKCS7_dataFinal()
2425 from `int' to `unsigned int' because it's a length and initialized by
2426 EVP_DigestFinal() which expects an `unsigned int *'.
2427 [Richard Levitte <levitte@stacken.kth.se>]
2429 *) Don't hard-code path to Perl interpreter on shebang line of Configure
2430 script. Instead use the usual Shell->Perl transition trick.
2431 [Ralf S. Engelschall]
2433 *) Make `openssl x509 -noout -modulus' functional also for DSA certificates
2434 (in addition to RSA certificates) to match the behaviour of `openssl dsa
2435 -noout -modulus' as it's already the case for `openssl rsa -noout
2436 -modulus'. For RSA the -modulus is the real "modulus" while for DSA
2437 currently the public key is printed (a decision which was already done by
2438 `openssl dsa -modulus' in the past) which serves a similar purpose.
2439 Additionally the NO_RSA no longer completely removes the whole -modulus
2440 option; it now only avoids using the RSA stuff. Same applies to NO_DSA
2442 [Ralf S. Engelschall]
2444 *) Add Arne Ansper's reliable BIO - this is an encrypted, block-digested
2445 BIO. See the source (crypto/evp/bio_ok.c) for more info.
2446 [Arne Ansper <arne@ats.cyber.ee>]
2448 *) Dump the old yucky req code that tried (and failed) to allow raw OIDs
2449 to be added. Now both 'req' and 'ca' can use new objects defined in the
2453 *) Add cool BIO that does syslog (or event log on NT).
2454 [Arne Ansper <arne@ats.cyber.ee>, integrated by Ben Laurie]
2456 *) Add support for new TLS ciphersuites, TLS_RSA_EXPORT56_WITH_RC4_56_MD5,
2457 TLS_RSA_EXPORT56_WITH_RC2_CBC_56_MD5 and
2458 TLS_RSA_EXPORT56_WITH_DES_CBC_SHA, as specified in "56-bit Export Cipher
2459 Suites For TLS", draft-ietf-tls-56-bit-ciphersuites-00.txt.
2462 *) Add preliminary config info for new extension code.
2465 *) Make RSA_NO_PADDING really use no padding.
2466 [Ulf Moeller <ulf@fitug.de>]
2468 *) Generate errors when private/public key check is done.
2471 *) Overhaul for 'crl' utility. New function X509_CRL_print. Partial support
2472 for some CRL extensions and new objects added.
2475 *) Really fix the ASN1 IMPLICIT bug this time... Partial support for private
2476 key usage extension and fuller support for authority key id.
2479 *) Add OAEP encryption for the OpenSSL crypto library. OAEP is the improved
2480 padding method for RSA, which is recommended for new applications in PKCS
2481 #1 v2.0 (RFC 2437, October 1998).
2482 OAEP (Optimal Asymmetric Encryption Padding) has better theoretical
2483 foundations than the ad-hoc padding used in PKCS #1 v1.5. It is secure
2484 against Bleichbacher's attack on RSA.
2485 [Ulf Moeller <ulf@fitug.de>, reformatted, corrected and integrated by
2488 *) Updates to the new SSL compression code
2489 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
2491 *) Fix so that the version number in the master secret, when passed
2492 via RSA, checks that if TLS was proposed, but we roll back to SSLv3
2493 (because the server will not accept higher), that the version number
2494 is 0x03,0x01, not 0x03,0x00
2495 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
2497 *) Run extensive memory leak checks on SSL apps. Fixed *lots* of memory
2498 leaks in ssl/ relating to new X509_get_pubkey() behaviour. Also fixes
2499 in apps/ and an unrelated leak in crypto/dsa/dsa_vrf.c
2502 *) Support for RAW extensions where an arbitrary extension can be
2503 created by including its DER encoding. See apps/openssl.cnf for
2507 *) Make sure latest Perl versions don't interpret some generated C array
2508 code as Perl array code in the crypto/err/err_genc.pl script.
2509 [Lars Weber <3weber@informatik.uni-hamburg.de>]
2511 *) Modify ms/do_ms.bat to not generate assembly language makefiles since
2512 not many people have the assembler. Various Win32 compilation fixes and
2513 update to the INSTALL.W32 file with (hopefully) more accurate Win32
2517 *) Modify configure script 'Configure' to automatically create crypto/date.h
2518 file under Win32 and also build pem.h from pem.org. New script
2519 util/mkfiles.pl to create the MINFO file on environments that can't do a
2520 'make files': perl util/mkfiles.pl >MINFO should work.
2523 *) Major rework of DES function declarations, in the pursuit of correctness
2524 and purity. As a result, many evil casts evaporated, and some weirdness,
2525 too. You may find this causes warnings in your code. Zapping your evil
2526 casts will probably fix them. Mostly.
2529 *) Fix for a typo in asn1.h. Bug fix to object creation script
2530 obj_dat.pl. It considered a zero in an object definition to mean
2531 "end of object": none of the objects in objects.h have any zeros
2532 so it wasn't spotted.
2533 [Steve Henson, reported by Erwann ABALEA <eabalea@certplus.com>]
2535 *) Add support for Triple DES Cipher Block Chaining with Output Feedback
2536 Masking (CBCM). In the absence of test vectors, the best I have been able
2537 to do is check that the decrypt undoes the encrypt, so far. Send me test
2538 vectors if you have them.
2541 *) Correct calculation of key length for export ciphers (too much space was
2542 allocated for null ciphers). This has not been tested!
2545 *) Modifications to the mkdef.pl for Win32 DEF file creation. The usage
2546 message is now correct (it understands "crypto" and "ssl" on its
2547 command line). There is also now an "update" option. This will update
2548 the util/ssleay.num and util/libeay.num files with any new functions.
2550 perl util/mkdef.pl crypto ssl update
2551 it will update them.
2554 *) Overhauled the Perl interface (perl/*):
2555 - ported BN stuff to OpenSSL's different BN library
2556 - made the perl/ source tree CVS-aware
2557 - renamed the package from SSLeay to OpenSSL (the files still contain
2558 their history because I've copied them in the repository)
2559 - removed obsolete files (the test scripts will be replaced
2560 by better Test::Harness variants in the future)
2561 [Ralf S. Engelschall]
2563 *) First cut for a very conservative source tree cleanup:
2564 1. merge various obsolete readme texts into doc/ssleay.txt
2565 where we collect the old documents and readme texts.
2566 2. remove the first part of files where I'm already sure that we no
2567 longer need them because of three reasons: either they are just temporary
2568 files which were left by Eric or they are preserved original files where
2569 I've verified that the diff is also available in the CVS via "cvs diff
2570 -rSSLeay_0_8_1b" or they were renamed (as it was definitely the case for
2571 the crypto/md/ stuff).
2572 [Ralf S. Engelschall]
2574 *) More extension code. Incomplete support for subject and issuer alt
2575 name, issuer and authority key id. Change the i2v function parameters
2576 and add an extra 'crl' parameter in the X509V3_CTX structure: guess
2577 what that's for :-) Fix to ASN1 macro which messed up
2578 IMPLICIT tag and add f_enum.c which adds a2i, i2a for ENUMERATED.
2581 *) Preliminary support for ENUMERATED type. This is largely copied from the
2585 *) Add new function, EVP_MD_CTX_copy() to replace frequent use of memcpy.
2586 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
2588 *) Make sure `make rehash' target really finds the `openssl' program.
2589 [Ralf S. Engelschall, Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
2591 *) Squeeze another 7% of speed out of MD5 assembler, at least on a P2. I'd
2592 like to hear about it if this slows down other processors.
2595 *) Add CygWin32 platform information to Configure script.
2596 [Alan Batie <batie@aahz.jf.intel.com>]
2598 *) Fixed ms/32all.bat script: `no_asm' -> `no-asm'
2599 [Rainer W. Gerling <gerling@mpg-gv.mpg.de>]
2601 *) New program nseq to manipulate netscape certificate sequences
2604 *) Modify crl2pkcs7 so it supports multiple -certfile arguments. Fix a
2608 *) Fixes to BN code. Previously the default was to define BN_RECURSION
2609 but the BN code had some problems that would cause failures when
2610 doing certificate verification and some other functions.
2611 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
2613 *) Add ASN1 and PEM code to support netscape certificate sequences.
2616 *) Add ASN1 and PEM code to support netscape certificate sequences.
2619 *) Add several PKIX and private extended key usage OIDs.
2622 *) Modify the 'ca' program to handle the new extension code. Modify
2623 openssl.cnf for new extension format, add comments.
2626 *) More X509 V3 changes. Fix typo in v3_bitstr.c. Add support to 'req'
2627 and add a sample to openssl.cnf so req -x509 now adds appropriate
2631 *) Continued X509 V3 changes. Add to other makefiles, integrate with the
2632 error code, add initial support to X509_print() and x509 application.
2635 *) Takes a deep breath and start addding X509 V3 extension support code. Add
2636 files in crypto/x509v3. Move original stuff to crypto/x509v3/old. All this
2637 stuff is currently isolated and isn't even compiled yet.
2640 *) Continuing patches for GeneralizedTime. Fix up certificate and CRL
2641 ASN1 to use ASN1_TIME and modify print routines to use ASN1_TIME_print.
2642 Removed the versions check from X509 routines when loading extensions:
2643 this allows certain broken certificates that don't set the version
2644 properly to be processed.
2647 *) Deal with irritating shit to do with dependencies, in YAAHW (Yet Another
2648 Ad Hoc Way) - Makefile.ssls now all contain local dependencies, which
2649 can still be regenerated with "make depend".
2652 *) Spelling mistake in C version of CAST-128.
2653 [Ben Laurie, reported by Jeremy Hylton <jeremy@cnri.reston.va.us>]
2655 *) Changes to the error generation code. The perl script err-code.pl
2656 now reads in the old error codes and retains the old numbers, only
2657 adding new ones if necessary. It also only changes the .err files if new
2658 codes are added. The makefiles have been modified to only insert errors
2659 when needed (to avoid needlessly modifying header files). This is done
2660 by only inserting errors if the .err file is newer than the auto generated
2661 C file. To rebuild all the error codes from scratch (the old behaviour)
2662 either modify crypto/Makefile.ssl to pass the -regen flag to err_code.pl
2663 or delete all the .err files.
2666 *) CAST-128 was incorrectly implemented for short keys. The C version has
2667 been fixed, but is untested. The assembler versions are also fixed, but
2668 new assembler HAS NOT BEEN GENERATED FOR WIN32 - the Makefile needs fixing
2669 to regenerate it if needed.
2670 [Ben Laurie, reported (with fix for C version) by Jun-ichiro itojun
2671 Hagino <itojun@kame.net>]
2673 *) File was opened incorrectly in randfile.c.
2674 [Ulf Möller <ulf@fitug.de>]
2676 *) Beginning of support for GeneralizedTime. d2i, i2d, check and print
2677 functions. Also ASN1_TIME suite which is a CHOICE of UTCTime or
2678 GeneralizedTime. ASN1_TIME is the proper type used in certificates et
2679 al: it's just almost always a UTCTime. Note this patch adds new error
2680 codes so do a "make errors" if there are problems.
2683 *) Correct Linux 1 recognition in config.
2684 [Ulf Möller <ulf@fitug.de>]
2686 *) Remove pointless MD5 hash when using DSA keys in ca.
2687 [Anonymous <nobody@replay.com>]
2689 *) Generate an error if given an empty string as a cert directory. Also
2690 generate an error if handed NULL (previously returned 0 to indicate an
2691 error, but didn't set one).
2692 [Ben Laurie, reported by Anonymous <nobody@replay.com>]
2694 *) Add prototypes to SSL methods. Make SSL_write's buffer const, at last.
2697 *) Fix the dummy function BN_ref_mod_exp() in rsaref.c to have the correct
2698 parameters. This was causing a warning which killed off the Win32 compile.
2701 *) Remove C++ style comments from crypto/bn/bn_local.h.
2702 [Neil Costigan <neil.costigan@celocom.com>]
2704 *) The function OBJ_txt2nid was broken. It was supposed to return a nid
2705 based on a text string, looking up short and long names and finally
2706 "dot" format. The "dot" format stuff didn't work. Added new function
2707 OBJ_txt2obj to do the same but return an ASN1_OBJECT and rewrote
2708 OBJ_txt2nid to use it. OBJ_txt2obj can also return objects even if the
2709 OID is not part of the table.
2712 *) Add prototypes to X509 lookup/verify methods, fixing a bug in
2713 X509_LOOKUP_by_alias().
2716 *) Sort openssl functions by name.
2719 *) Get the gendsa program working (hopefully) and add it to app list. Remove
2720 encryption from sample DSA keys (in case anyone is interested the password
2724 *) Make _all_ *_free functions accept a NULL pointer.
2725 [Frans Heymans <fheymans@isaserver.be>]
2727 *) If a DH key is generated in s3_srvr.c, don't blow it by trying to use
2729 [Anonymous <nobody@replay.com>]
2731 *) s_server should send the CAfile as acceptable CAs, not its own cert.
2732 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
2734 *) Don't blow it for numeric -newkey arguments to apps/req.
2735 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
2737 *) Temp key "for export" tests were wrong in s3_srvr.c.
2738 [Anonymous <nobody@replay.com>]
2740 *) Add prototype for temp key callback functions
2741 SSL_CTX_set_tmp_{rsa,dh}_callback().
2744 *) Make DH_free() tolerate being passed a NULL pointer (like RSA_free() and
2745 DSA_free()). Make X509_PUBKEY_set() check for errors in d2i_PublicKey().
2748 *) X509_name_add_entry() freed the wrong thing after an error.
2749 [Arne Ansper <arne@ats.cyber.ee>]
2751 *) rsa_eay.c would attempt to free a NULL context.
2752 [Arne Ansper <arne@ats.cyber.ee>]
2754 *) BIO_s_socket() had a broken should_retry() on Windoze.
2755 [Arne Ansper <arne@ats.cyber.ee>]
2757 *) BIO_f_buffer() didn't pass on BIO_CTRL_FLUSH.
2758 [Arne Ansper <arne@ats.cyber.ee>]
2760 *) Make sure the already existing X509_STORE->depth variable is initialized
2761 in X509_STORE_new(), but document the fact that this variable is still
2762 unused in the certificate verification process.
2763 [Ralf S. Engelschall]
2765 *) Fix the various library and apps files to free up pkeys obtained from
2766 X509_PUBKEY_get() et al. Also allow x509.c to handle netscape extensions.
2769 *) Fix reference counting in X509_PUBKEY_get(). This makes
2770 demos/maurice/example2.c work, amongst others, probably.
2771 [Steve Henson and Ben Laurie]
2773 *) First cut of a cleanup for apps/. First the `ssleay' program is now named
2774 `openssl' and second, the shortcut symlinks for the `openssl <command>'
2775 are no longer created. This way we have a single and consistent command
2776 line interface `openssl <command>', similar to `cvs <command>'.
2777 [Ralf S. Engelschall, Paul Sutton and Ben Laurie]
2779 *) ca.c: move test for DSA keys inside #ifndef NO_DSA. Make pubkey
2780 BIT STRING wrapper always have zero unused bits.
2783 *) Add CA.pl, perl version of CA.sh, add extended key usage OID.
2786 *) Make the top-level INSTALL documentation easier to understand.
2789 *) Makefiles updated to exit if an error occurs in a sub-directory
2790 make (including if user presses ^C) [Paul Sutton]
2792 *) Make Montgomery context stuff explicit in RSA data structure.
2795 *) Fix build order of pem and err to allow for generated pem.h.
2798 *) Fix renumbering bug in X509_NAME_delete_entry().
2801 *) Enhanced the err-ins.pl script so it makes the error library number
2802 global and can add a library name. This is needed for external ASN1 and
2803 other error libraries.
2806 *) Fixed sk_insert which never worked properly.
2809 *) Fix ASN1 macros so they can handle indefinite length construted
2810 EXPLICIT tags. Some non standard certificates use these: they can now
2814 *) Merged the various old/obsolete SSLeay documentation files (doc/xxx.doc)
2815 into a single doc/ssleay.txt bundle. This way the information is still
2816 preserved but no longer messes up this directory. Now it's new room for
2817 the new set of documenation files.
2818 [Ralf S. Engelschall]
2820 *) SETs were incorrectly DER encoded. This was a major pain, because they
2821 shared code with SEQUENCEs, which aren't coded the same. This means that
2822 almost everything to do with SETs or SEQUENCEs has either changed name or
2823 number of arguments.
2824 [Ben Laurie, based on a partial fix by GP Jayan <gp@nsj.co.jp>]
2826 *) Fix test data to work with the above.
2829 *) Fix the RSA header declarations that hid a bug I fixed in 0.9.0b but
2830 was already fixed by Eric for 0.9.1 it seems.
2831 [Ben Laurie - pointed out by Ulf Möller <ulf@fitug.de>]
2833 *) Autodetect FreeBSD3.
2836 *) Fix various bugs in Configure. This affects the following platforms:
2840 unixware-2.0-pentium
2844 *) Eliminate generated files from CVS. Reorder tests to regenerate files
2845 before they are needed.
2848 *) Generate Makefile.ssl from Makefile.org (to keep CVS happy).
2852 Changes between 0.9.1b and 0.9.1c [23-Dec-1998]
2854 *) Added OPENSSL_VERSION_NUMBER to crypto/crypto.h and
2855 changed SSLeay to OpenSSL in version strings.
2856 [Ralf S. Engelschall]
2858 *) Some fixups to the top-level documents.
2861 *) Fixed the nasty bug where rsaref.h was not found under compile-time
2862 because the symlink to include/ was missing.
2863 [Ralf S. Engelschall]
2865 *) Incorporated the popular no-RSA/DSA-only patches
2866 which allow to compile a RSA-free SSLeay.
2867 [Andrew Cooke / Interrader Ldt., Ralf S. Engelschall]
2869 *) Fixed nasty rehash problem under `make -f Makefile.ssl links'
2870 when "ssleay" is still not found.
2871 [Ralf S. Engelschall]
2873 *) Added more platforms to Configure: Cray T3E, HPUX 11,
2874 [Ralf S. Engelschall, Beckmann <beckman@acl.lanl.gov>]
2876 *) Updated the README file.
2877 [Ralf S. Engelschall]
2879 *) Added various .cvsignore files in the CVS repository subdirs
2880 to make a "cvs update" really silent.
2881 [Ralf S. Engelschall]
2883 *) Recompiled the error-definition header files and added
2884 missing symbols to the Win32 linker tables.
2885 [Ralf S. Engelschall]
2887 *) Cleaned up the top-level documents;
2888 o new files: CHANGES and LICENSE
2889 o merged VERSION, HISTORY* and README* files a CHANGES.SSLeay
2890 o merged COPYRIGHT into LICENSE
2891 o removed obsolete TODO file
2892 o renamed MICROSOFT to INSTALL.W32
2893 [Ralf S. Engelschall]
2895 *) Removed dummy files from the 0.9.1b source tree:
2896 crypto/asn1/x crypto/bio/cd crypto/bio/fg crypto/bio/grep crypto/bio/vi
2897 crypto/bn/asm/......add.c crypto/bn/asm/a.out crypto/dsa/f crypto/md5/f
2898 crypto/pem/gmon.out crypto/perlasm/f crypto/pkcs7/build crypto/rsa/f
2899 crypto/sha/asm/f crypto/threads/f ms/zzz ssl/f ssl/f.mak test/f
2900 util/f.mak util/pl/f util/pl/f.mak crypto/bf/bf_locl.old apps/f
2901 [Ralf S. Engelschall]
2903 *) Added various platform portability fixes.
2906 *) The Genesis of the OpenSSL rpject:
2907 We start with the latest (unreleased) SSLeay version 0.9.1b which Eric A.
2908 Young and Tim J. Hudson created while they were working for C2Net until
2910 [The OpenSSL Project]
2913 Changes between 0.9.0b and 0.9.1b [not released]
2915 *) Updated a few CA certificates under certs/
2918 *) Changed some BIGNUM api stuff.
2921 *) Various platform ports: OpenBSD, Ultrix, IRIX 64bit, NetBSD,
2922 DGUX x86, Linux Alpha, etc.
2925 *) New COMP library [crypto/comp/] for SSL Record Layer Compression:
2926 RLE (dummy implemented) and ZLIB (really implemented when ZLIB is
2930 *) Add -strparse option to asn1pars program which parses nested
2932 [Dr Stephen Henson <shenson@bigfoot.com>]
2934 *) Added "oid_file" to ssleay.cnf for "ca" and "req" programs.
2937 *) DSA fix for "ca" program.
2940 *) Added "-genkey" option to "dsaparam" program.
2943 *) Added RIPE MD160 (rmd160) message digest.
2946 *) Added -a (all) option to "ssleay version" command.
2949 *) Added PLATFORM define which is the id given to Configure.
2952 *) Added MemCheck_XXXX functions to crypto/mem.c for memory checking.
2955 *) Extended the ASN.1 parser routines.
2958 *) Extended BIO routines to support REUSEADDR, seek, tell, etc.
2961 *) Added a BN_CTX to the BN library.
2964 *) Fixed the weak key values in DES library
2967 *) Changed API in EVP library for cipher aliases.
2970 *) Added support for RC2/64bit cipher.
2973 *) Converted the lhash library to the crypto/mem.c functions.
2976 *) Added more recognized ASN.1 object ids.
2979 *) Added more RSA padding checks for SSL/TLS.
2982 *) Added BIO proxy/filter functionality.
2985 *) Added extra_certs to SSL_CTX which can be used
2986 send extra CA certificates to the client in the CA cert chain sending
2987 process. It can be configured with SSL_CTX_add_extra_chain_cert().
2990 *) Now Fortezza is denied in the authentication phase because
2991 this is key exchange mechanism is not supported by SSLeay at all.
2994 *) Additional PKCS1 checks.
2997 *) Support the string "TLSv1" for all TLS v1 ciphers.
3000 *) Added function SSL_get_ex_data_X509_STORE_CTX_idx() which gives the
3001 ex_data index of the SSL context in the X509_STORE_CTX ex_data.
3004 *) Fixed a few memory leaks.
3007 *) Fixed various code and comment typos.
3010 *) A minor bug in ssl/s3_clnt.c where there would always be 4 0
3011 bytes sent in the client random.
3012 [Edward Bishop <ebishop@spyglass.com>]
projects / openssl.git / blob