4 Changes between 0.9.6 and 0.9.7 [xx XXX 2000]
6 *) Added Kerberos Cipher Suites to be used with TLS, as written in RFC
8 [Veers Staats <staatsvr@asc.hpc.mil>,
9 Jeffrey Altman <jaltnab@columbia.edu>
12 *) rand_win.c fix for Borland C.
15 *) BN_rshift bugfix for n == 0.
18 *) Reformat the FAQ so the different questions and answers can be divided
19 in sections depending on the subject.
22 *) Have the zlib compression code load ZLIB.DLL dynamically under
26 *) New function BN_mod_sqrt for computing square roots modulo a prime
27 (Tonelli-Shanks algorithm).
28 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
30 *) Store verify_result within SSL_SESSION also for client side to
31 avoid potential security hole. (Re-used sessions on the client side
32 always resulted in verify_result==X509_V_OK, not using the original
33 result of the server certificate verification.)
36 *) Make BN_mod_inverse faster by explicitly handling small quotients
37 in the Euclid loop. (Speed gain about 20% for small moduli [256 or
38 512 bits], about 30% for larger ones [1024 or 2048 bits].)
41 *) Disable ssl2_peek and ssl3_peek (i.e., both implementations
42 of SSL_peek) because they both are completely broken.
43 They will be fixed RSN by adding an additional 'peek' parameter
44 to the internal read functions.
47 *) New function BN_kronecker.
50 *) Fix BN_gcd so that it works on negative inputs; the result is
51 positive unless both parameters are zero.
52 Previously something reasonably close to an infinite loop was
53 possible because numbers could be growing instead of shrinking
54 in the implementation of Euclid's algorithm.
57 *) Fix BN_is_word() and BN_is_one() macros to take into account the
58 sign of the number in question.
60 Fix BN_is_word(a,w) to work correctly for w == 0.
62 The old BN_is_word(a,w) macro is now called BN_abs_is_word(a,w)
63 because its test if the absolute value of 'a' equals 'w'.
64 Note that BN_abs_is_word does *not* handle w == 0 reliably;
65 it exists mostly for use in the implementations of BN_is_zero(),
66 BN_is_one(), and BN_is_word().
69 *) Initialise "ex_data" member of RSA/DSA/DH structures prior to calling
70 the method-specific "init()" handler. Also clean up ex_data after
71 calling the method-specific "finish()" handler. Previously, this was
72 happening the other way round.
75 *) New function BN_swap.
78 *) Use BN_nnmod instead of BN_mod in crypto/bn/bn_exp.c so that
79 the exponentiation functions are more likely to produce reasonable
80 results on negative inputs.
83 *) Change BN_mod_mul so that the result is always non-negative.
84 Previously, it could be negative if one of the factors was negative;
85 I don't think anyone really wanted that behaviour.
88 *) Move BN_mod_... functions into new file crypto/bn/bn_mod.c
89 (except for exponentation, which stays in crypto/bn/bn_exp.c,
90 and BN_mod_mul_reciprocal, which stays in crypto/bn/bn_recp.c)
91 and add new functions:
104 These functions always generate non-negative results.
106 BN_nnmod otherwise is like BN_mod (if BN_mod computes a remainder r
107 such that |m| < r < 0, BN_nnmod will output rem + |m| instead).
109 BN_mod_XXX_quick(r, a, [b,] m) generates the same result as
110 BN_mod_XXX(r, a, [b,] m, ctx), but requires that a [and b]
112 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
114 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
115 was actually never needed) and in BN_mul(). The removal in BN_mul()
116 required a small change in bn_mul_part_recursive() and the addition
117 of the static functions bn_cmp_part_words(), bn_sub_part_words()
118 and bn_add_part_words() which do the same thing as bn_cmp_words(),
119 bn_sub_words() and bn_add_words() except they take arrays with
123 *) In 'openssl passwd', verify passwords read from the terminal
124 unless the '-salt' option is used (which usually means that
125 verification would just waste user's time since the resulting
126 hash is going to be compared with some given password hash)
127 or the new '-noverify' option is used.
129 This is an incompatible change, but it does not affect
130 non-interactive use of 'openssl passwd' (passwords on the command
131 line, '-stdin' option, '-in ...' option) and thus should not
135 *) Remove all references to RSAref, since there's no more need for it.
138 *) Increase BN_CTX_NUM (the number of BIGNUMs in a BN_CTX) to 16.
139 The previous value, 12, was not always sufficient for BN_mod_exp().
142 *) Make DSO load along a path given through an environment variable
143 (SHLIB_PATH) with shl_load().
146 *) Constify the ENGINE code as a result of BIGNUM constification.
147 Also constify the RSA code and most things related to it. In a
148 few places, most notable in the depth of the ASN.1 code, ugly
149 casts back to non-const were required (to be solved at a later
153 *) Make it so the openssl application has all engines loaded by default.
156 *) Constify the BIGNUM routines a little more.
159 *) Make sure that shared libraries get the internal name engine with
160 the full version number and not just 0. This should mark the
161 shared libraries as not backward compatible. Of course, this should
162 be changed again when we can guarantee backward binary compatibility.
165 *) Add the following functions:
171 ENGINE_load_builtin_engines()
173 That way, an application can itself choose if external engines that
174 are built-in in OpenSSL shall ever be used or not. The benefit is
175 that applications won't have to be linked with libdl or other dso
176 libraries unless it's really needed.
178 Changed 'openssl engine' to load all engines on demand.
179 Changed the engine header files to avoid the duplication of some
180 declarations (they differed!).
183 *) 'openssl engine' can now list capabilities.
186 *) Better error reporting in 'openssl engine'.
189 *) Never call load_dh_param(NULL) in s_server.
192 *) Add engine application. It can currently list engines by name and
193 identity, and test if they are actually available.
196 *) Add support for shared libraries under Irix.
197 [Albert Chin-A-Young <china@thewrittenword.com>]
199 *) Improve RPM specification file by forcing symbolic linking and making
200 sure the installed documentation is also owned by root.root.
201 [Damien Miller <djm@mindrot.org>]
203 *) Add configuration option to build on Linux on both big-endian and
205 [Ralf Baechle <ralf@uni-koblenz.de>]
207 *) Give the OpenSSL applications more possibilities to make use of
208 keys (public as well as private) handled by engines.
211 *) Add OCSP code that comes from CertCo.
214 *) Add VMS support for the Rijndael code.
217 *) Added untested support for Nuron crypto accelerator.
220 *) Add support for external cryptographic devices. This code was
221 previously distributed separately as the "engine" branch.
222 [Geoff Thorpe, Richard Levitte]
224 *) Rework the filename-translation in the DSO code. It is now possible to
225 have far greater control over how a "name" is turned into a filename
226 depending on the operating environment and any oddities about the
227 different shared library filenames on each system.
230 *) Support threads on FreeBSD-elf in Configure.
233 *) Add the possibility to create shared libraries on HP-UX
236 *) Fix for SHA1 assembly problem with MASM: it produces
237 warnings about corrupt line number information when assembling
238 with debugging information. This is caused by the overlapping
240 [Bernd Matthes <mainbug@celocom.de>, Steve Henson]
243 NCONF_get_number() has no error checking at all. As a replacement,
244 NCONF_get_number_e() is defined (_e for "error checking") and is
245 promoted strongly. The old NCONF_get_number is kept around for
246 binary backward compatibility.
247 Make it possible for methods to load from something other than a BIO,
248 by providing a function pointer that is given a name instead of a BIO.
249 For example, this could be used to load configuration data from an
253 *) Fix typo in get_cert_by_subject() in by_dir.c
254 [Jean-Marc Desperrier <jean-marc.desperrier@certplus.com>]
256 *) Rework the system to generate shared libraries:
258 - Make note of the expected extension for the shared libraries and
259 if there is a need for symbolic links from for example libcrypto.so.0
260 to libcrypto.so.0.9.7. There is extended info in Configure for
263 - Make as few rebuilds of the shared libraries as possible.
265 - Still avoid linking the OpenSSL programs with the shared libraries.
267 - When installing, install the shared libraries separately from the
271 *) Fix for non blocking accept BIOs. Added new I/O special reason
272 BIO_RR_ACCEPT to cover this case. Previously use of accept BIOs
273 with non blocking I/O was not possible because no retry code was
274 implemented. Also added new SSL code SSL_WANT_ACCEPT to cover
278 *) Added the beginnings of Rijndael support.
281 *) Fix for bug in DirectoryString mask setting. Add support for
282 X509_NAME_print_ex() in 'req' and X509_print_ex() function
283 to allow certificate printing to more controllable, additional
284 'certopt' option to 'x509' to allow new printing options to be
288 *) Clean old EAY MD5 hack from e_os.h.
291 *) Fix SSL_CTX_set_read_ahead macro to actually use its argument.
293 Copy SSL_CTX's read_ahead flag to SSL object directly in SSL_new
294 and not in SSL_clear because the latter is also used by the
295 accept/connect functions; previously, the settings made by
296 SSL_set_read_ahead would be lost during the handshake.
297 [Bodo Moeller; problems reported by Anders Gertz <gertz@epact.se>]
299 *) Correct util/mkdef.pl to be selective about disabled algorithms.
300 Previously, it would create entries for disableed algorithms no
304 Changes between 0.9.5a and 0.9.6 [24 Sep 2000]
306 *) In ssl23_get_client_hello, generate an error message when faced
307 with an initial SSL 3.0/TLS record that is too small to contain the
308 first two bytes of the ClientHello message, i.e. client_version.
309 (Note that this is a pathologic case that probably has never happened
310 in real life.) The previous approach was to use the version number
311 from the record header as a substitute; but our protocol choice
312 should not depend on that one because it is not authenticated
313 by the Finished messages.
316 *) More robust randomness gathering functions for Windows.
317 [Jeffrey Altman <jaltman@columbia.edu>]
319 *) For compatibility reasons if the flag X509_V_FLAG_ISSUER_CHECK is
320 not set then we don't setup the error code for issuer check errors
321 to avoid possibly overwriting other errors which the callback does
322 handle. If an application does set the flag then we assume it knows
323 what it is doing and can handle the new informational codes
327 *) Fix for a nasty bug in ASN1_TYPE handling. ASN1_TYPE is used for
328 a general "ANY" type, as such it should be able to decode anything
329 including tagged types. However it didn't check the class so it would
330 wrongly interpret tagged types in the same way as their universal
331 counterpart and unknown types were just rejected. Changed so that the
332 tagged and unknown types are handled in the same way as a SEQUENCE:
333 that is the encoding is stored intact. There is also a new type
334 "V_ASN1_OTHER" which is used when the class is not universal, in this
335 case we have no idea what the actual type is so we just lump them all
339 *) On VMS, stdout may very well lead to a file that is written to
340 in a record-oriented fashion. That means that every write() will
341 write a separate record, which will be read separately by the
342 programs trying to read from it. This can be very confusing.
344 The solution is to put a BIO filter in the way that will buffer
345 text until a linefeed is reached, and then write everything a
346 line at a time, so every record written will be an actual line,
347 not chunks of lines and not (usually doesn't happen, but I've
348 seen it once) several lines in one record. BIO_f_linebuffer() is
351 Currently, it's a VMS-only method, because that's where it has
352 been tested well enough.
355 *) Remove 'optimized' squaring variant in BN_mod_mul_montgomery,
356 it can return incorrect results.
357 (Note: The buggy variant was not enabled in OpenSSL 0.9.5a,
358 but it was in 0.9.6-beta[12].)
361 *) Disable the check for content being present when verifying detached
362 signatures in pk7_smime.c. Some versions of Netscape (wrongly)
363 include zero length content when signing messages.
366 *) New BIO_shutdown_wr macro, which invokes the BIO_C_SHUTDOWN_WR
367 BIO_ctrl (for BIO pairs).
370 *) Add DSO method for VMS.
373 *) Bug fix: Montgomery multiplication could produce results with the
377 *) Add RPM specification openssl.spec and modify it to build three
378 packages. The default package contains applications, application
379 documentation and run-time libraries. The devel package contains
380 include files, static libraries and function documentation. The
381 doc package contains the contents of the doc directory. The original
382 openssl.spec was provided by Damien Miller <djm@mindrot.org>.
385 *) Add a large number of documentation files for many SSL routines.
386 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
388 *) Add a configuration entry for Sony News 4.
389 [NAKAJI Hiroyuki <nakaji@tutrp.tut.ac.jp>]
391 *) Don't set the two most significant bits to one when generating a
392 random number < q in the DSA library.
395 *) New SSL API mode 'SSL_MODE_AUTO_RETRY'. This disables the default
396 behaviour that SSL_read may result in SSL_ERROR_WANT_READ (even if
397 the underlying transport is blocking) if a handshake took place.
398 (The default behaviour is needed by applications such as s_client
399 and s_server that use select() to determine when to use SSL_read;
400 but for applications that know in advance when to expect data, it
401 just makes things more complicated.)
404 *) Add RAND_egd_bytes(), which gives control over the number of bytes read
408 *) Add a few more EBCDIC conditionals that make `req' and `x509'
409 work better on such systems.
410 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
412 *) Add two demo programs for PKCS12_parse() and PKCS12_create().
413 Update PKCS12_parse() so it copies the friendlyName and the
414 keyid to the certificates aux info.
417 *) Fix bug in PKCS7_verify() which caused an infinite loop
418 if there was more than one signature.
419 [Sven Uszpelkat <su@celocom.de>]
421 *) Major change in util/mkdef.pl to include extra information
422 about each symbol, as well as presentig variables as well
423 as functions. This change means that there's n more need
424 to rebuild the .num files when some algorithms are excluded.
427 *) Allow the verify time to be set by an application,
428 rather than always using the current time.
431 *) Phase 2 verify code reorganisation. The certificate
432 verify code now looks up an issuer certificate by a
433 number of criteria: subject name, authority key id
434 and key usage. It also verifies self signed certificates
435 by the same criteria. The main comparison function is
436 X509_check_issued() which performs these checks.
438 Lot of changes were necessary in order to support this
439 without completely rewriting the lookup code.
441 Authority and subject key identifier are now cached.
443 The LHASH 'certs' is X509_STORE has now been replaced
444 by a STACK_OF(X509_OBJECT). This is mainly because an
445 LHASH can't store or retrieve multiple objects with
448 As a result various functions (which were all internal
449 use only) have changed to handle the new X509_STORE
450 structure. This will break anything that messed round
451 with X509_STORE internally.
453 The functions X509_STORE_add_cert() now checks for an
454 exact match, rather than just subject name.
456 The X509_STORE API doesn't directly support the retrieval
457 of multiple certificates matching a given criteria, however
458 this can be worked round by performing a lookup first
459 (which will fill the cache with candidate certificates)
460 and then examining the cache for matches. This is probably
461 the best we can do without throwing out X509_LOOKUP
462 entirely (maybe later...).
464 The X509_VERIFY_CTX structure has been enhanced considerably.
466 All certificate lookup operations now go via a get_issuer()
467 callback. Although this currently uses an X509_STORE it
468 can be replaced by custom lookups. This is a simple way
469 to bypass the X509_STORE hackery necessary to make this
470 work and makes it possible to use more efficient techniques
471 in future. A very simple version which uses a simple
472 STACK for its trusted certificate store is also provided
473 using X509_STORE_CTX_trusted_stack().
475 The verify_cb() and verify() callbacks now have equivalents
476 in the X509_STORE_CTX structure.
478 X509_STORE_CTX also has a 'flags' field which can be used
479 to customise the verify behaviour.
482 *) Add new PKCS#7 signing option PKCS7_NOSMIMECAP which
483 excludes S/MIME capabilities.
486 *) When a certificate request is read in keep a copy of the
487 original encoding of the signed data and use it when outputing
488 again. Signatures then use the original encoding rather than
489 a decoded, encoded version which may cause problems if the
490 request is improperly encoded.
493 *) For consistency with other BIO_puts implementations, call
494 buffer_write(b, ...) directly in buffer_puts instead of calling
497 In BIO_puts, increment b->num_write as in BIO_write.
498 [Peter.Sylvester@EdelWeb.fr]
500 *) Fix BN_mul_word for the case where the word is 0. (We have to use
501 BN_zero, we may not return a BIGNUM with an array consisting of
505 *) Avoid calling abort() from within the library when problems are
506 detected, except if preprocessor symbols have been defined
507 (such as REF_CHECK, BN_DEBUG etc.).
510 *) New openssl application 'rsautl'. This utility can be
511 used for low level RSA operations. DER public key
512 BIO/fp routines also added.
515 *) New Configure entry and patches for compiling on QNX 4.
516 [Andreas Schneider <andreas@ds3.etech.fh-hamburg.de>]
518 *) A demo state-machine implementation was sponsored by
519 Nuron (http://www.nuron.com/) and is now available in
523 *) New options added to the 'dgst' utility for signature
524 generation and verification.
527 *) Unrecognized PKCS#7 content types are now handled via a
528 catch all ASN1_TYPE structure. This allows unsupported
529 types to be stored as a "blob" and an application can
530 encode and decode it manually.
533 *) Fix various signed/unsigned issues to make a_strex.c
535 [Oscar Jacobsson <oscar.jacobsson@celocom.com>]
537 *) ASN1 fixes. i2d_ASN1_OBJECT was not returning the correct
538 length if passed a buffer. ASN1_INTEGER_to_BN failed
539 if passed a NULL BN and its argument was negative.
540 [Steve Henson, pointed out by Sven Heiberg <sven@tartu.cyber.ee>]
542 *) Modification to PKCS#7 encoding routines to output definite
543 length encoding. Since currently the whole structures are in
544 memory there's not real point in using indefinite length
545 constructed encoding. However if OpenSSL is compiled with
546 the flag PKCS7_INDEFINITE_ENCODING the old form is used.
549 *) Added BIO_vprintf() and BIO_vsnprintf().
552 *) Added more prefixes to parse for in the the strings written
553 through a logging bio, to cover all the levels that are available
554 through syslog. The prefixes are now:
556 PANIC, EMERG, EMR => LOG_EMERG
557 ALERT, ALR => LOG_ALERT
558 CRIT, CRI => LOG_CRIT
559 ERROR, ERR => LOG_ERR
560 WARNING, WARN, WAR => LOG_WARNING
561 NOTICE, NOTE, NOT => LOG_NOTICE
562 INFO, INF => LOG_INFO
563 DEBUG, DBG => LOG_DEBUG
565 and as before, if none of those prefixes are present at the
566 beginning of the string, LOG_ERR is chosen.
568 On Win32, the LOG_* levels are mapped according to this:
570 LOG_EMERG, LOG_ALERT, LOG_CRIT, LOG_ERR => EVENTLOG_ERROR_TYPE
571 LOG_WARNING => EVENTLOG_WARNING_TYPE
572 LOG_NOTICE, LOG_INFO, LOG_DEBUG => EVENTLOG_INFORMATION_TYPE
576 *) Made it possible to reconfigure with just the configuration
577 argument "reconf" or "reconfigure". The command line arguments
578 are stored in Makefile.ssl in the variable CONFIGURE_ARGS,
579 and are retrieved from there when reconfiguring.
583 [Assar Westerlund <assar@sics.se>, Richard Levitte]
585 *) Add the arguments -CAfile and -CApath to the pkcs12 utility.
588 *) The obj_dat.pl script was messing up the sorting of object
589 names. The reason was that it compared the quoted version
590 of strings as a result "OCSP" > "OCSP Signing" because
591 " > SPACE. Changed script to store unquoted versions of
592 names and add quotes on output. It was also omitting some
593 names from the lookup table if they were given a default
594 value (that is if SN is missing it is given the same
595 value as LN and vice versa), these are now added on the
596 grounds that if an object has a name we should be able to
597 look it up. Finally added warning output when duplicate
598 short or long names are found.
601 *) Changes needed for Tandem NSK.
602 [Scott Uroff <scott@xypro.com>]
604 *) Fix SSL 2.0 rollback checking: Due to an off-by-one error in
605 RSA_padding_check_SSLv23(), special padding was never detected
606 and thus the SSL 3.0/TLS 1.0 countermeasure against protocol
607 version rollback attacks was not effective.
609 In s23_clnt.c, don't use special rollback-attack detection padding
610 (RSA_SSLV23_PADDING) if SSL 2.0 is the only protocol enabled in the
611 client; similarly, in s23_srvr.c, don't do the rollback check if
612 SSL 2.0 is the only protocol enabled in the server.
615 *) Make it possible to get hexdumps of unprintable data with 'openssl
616 asn1parse'. By implication, the functions ASN1_parse_dump() and
617 BIO_dump_indent() are added.
620 *) New functions ASN1_STRING_print_ex() and X509_NAME_print_ex()
621 these print out strings and name structures based on various
622 flags including RFC2253 support and proper handling of
623 multibyte characters. Added options to the 'x509' utility
624 to allow the various flags to be set.
627 *) Various fixes to use ASN1_TIME instead of ASN1_UTCTIME.
628 Also change the functions X509_cmp_current_time() and
629 X509_gmtime_adj() work with an ASN1_TIME structure,
630 this will enable certificates using GeneralizedTime in validity
634 *) Make the NEG_PUBKEY_BUG code (which tolerates invalid
635 negative public key encodings) on by default,
636 NO_NEG_PUBKEY_BUG can be set to disable it.
639 *) New function c2i_ASN1_OBJECT() which acts on ASN1_OBJECT
640 content octets. An i2c_ASN1_OBJECT is unnecessary because
641 the encoding can be trivially obtained from the structure.
644 *) crypto/err.c locking bugfix: Use write locks (CRYPTO_w_[un]lock),
645 not read locks (CRYPTO_r_[un]lock).
648 *) A first attempt at creating official support for shared
649 libraries through configuration. I've kept it so the
650 default is static libraries only, and the OpenSSL programs
651 are always statically linked for now, but there are
652 preparations for dynamic linking in place.
653 This has been tested on Linux and True64.
656 *) Randomness polling function for Win9x, as described in:
657 Peter Gutmann, Software Generation of Practically Strong
661 *) Fix so PRNG is seeded in req if using an already existing
665 *) New options to smime application. -inform and -outform
666 allow alternative formats for the S/MIME message including
667 PEM and DER. The -content option allows the content to be
668 specified separately. This should allow things like Netscape
669 form signing output easier to verify.
672 *) Fix the ASN1 encoding of tags using the 'long form'.
675 *) New ASN1 functions, i2c_* and c2i_* for INTEGER and BIT
676 STRING types. These convert content octets to and from the
677 underlying type. The actual tag and length octets are
678 already assumed to have been read in and checked. These
679 are needed because all other string types have virtually
680 identical handling apart from the tag. By having versions
681 of the ASN1 functions that just operate on content octets
682 IMPLICIT tagging can be handled properly. It also allows
683 the ASN1_ENUMERATED code to be cut down because ASN1_ENUMERATED
684 and ASN1_INTEGER are identical apart from the tag.
687 *) Change the handling of OID objects as follows:
689 - New object identifiers are inserted in objects.txt, following
690 the syntax given in objects.README.
691 - objects.pl is used to process obj_mac.num and create a new
693 - obj_dat.pl is used to create a new obj_dat.h, using the data in
696 This is currently kind of a hack, and the perl code in objects.pl
697 isn't very elegant, but it works as I intended. The simplest way
698 to check that it worked correctly is to look in obj_dat.h and
699 check the array nid_objs and make sure the objects haven't moved
700 around (this is important!). Additions are OK, as well as
701 consistent name changes.
704 *) Add BSD-style MD5-based passwords to 'openssl passwd' (option '-1').
707 *) Addition of the command line parameter '-rand file' to 'openssl req'.
708 The given file adds to whatever has already been seeded into the
709 random pool through the RANDFILE configuration file option or
710 environment variable, or the default random state file.
713 *) mkstack.pl now sorts each macro group into lexical order.
714 Previously the output order depended on the order the files
715 appeared in the directory, resulting in needless rewriting
719 *) Patches to make OpenSSL compile under Win32 again. Mostly
720 work arounds for the VC++ problem that it treats func() as
721 func(void). Also stripped out the parts of mkdef.pl that
722 added extra typesafe functions: these no longer exist.
725 *) Reorganisation of the stack code. The macros are now all
726 collected in safestack.h . Each macro is defined in terms of
727 a "stack macro" of the form SKM_<name>(type, a, b). The
728 DEBUG_SAFESTACK is now handled in terms of function casts,
729 this has the advantage of retaining type safety without the
730 use of additional functions. If DEBUG_SAFESTACK is not defined
731 then the non typesafe macros are used instead. Also modified the
732 mkstack.pl script to handle the new form. Needs testing to see
733 if which (if any) compilers it chokes and maybe make DEBUG_SAFESTACK
734 the default if no major problems. Similar behaviour for ASN1_SET_OF
738 *) When some versions of IIS use the 'NET' form of private key the
739 key derivation algorithm is different. Normally MD5(password) is
740 used as a 128 bit RC4 key. In the modified case
741 MD5(MD5(password) + "SGCKEYSALT") is used insted. Added some
742 new functions i2d_RSA_NET(), d2i_RSA_NET() etc which are the same
743 as the old Netscape_RSA functions except they have an additional
744 'sgckey' parameter which uses the modified algorithm. Also added
745 an -sgckey command line option to the rsa utility. Thanks to
746 Adrian Peck <bertie@ncipher.com> for posting details of the modified
747 algorithm to openssl-dev.
750 *) The evp_local.h macros were using 'c.##kname' which resulted in
751 invalid expansion on some systems (SCO 5.0.5 for example).
752 Corrected to 'c.kname'.
753 [Phillip Porch <root@theporch.com>]
755 *) New X509_get1_email() and X509_REQ_get1_email() functions that return
756 a STACK of email addresses from a certificate or request, these look
757 in the subject name and the subject alternative name extensions and
758 omit any duplicate addresses.
761 *) Re-implement BN_mod_exp2_mont using independent (and larger) windows.
762 This makes DSA verification about 2 % faster.
765 *) Increase maximum window size in BN_mod_exp_... to 6 bits instead of 5
766 (meaning that now 2^5 values will be precomputed, which is only 4 KB
767 plus overhead for 1024 bit moduli).
768 This makes exponentiations about 0.5 % faster for 1024 bit
769 exponents (as measured by "openssl speed rsa2048").
772 *) Rename memory handling macros to avoid conflicts with other
774 Malloc => OPENSSL_malloc
775 Malloc_locked => OPENSSL_malloc_locked
776 Realloc => OPENSSL_realloc
780 *) New function BN_mod_exp_mont_word for small bases (roughly 15%
781 faster than BN_mod_exp_mont, i.e. 7% for a full DH exchange).
785 [John Jarvie <jjarvie@newsguy.com>]
787 *) The type-safe stack code has been rejigged. It is now only compiled
788 in when OpenSSL is configured with the DEBUG_SAFESTACK option and
789 by default all type-specific stack functions are "#define"d back to
790 standard stack functions. This results in more streamlined output
791 but retains the type-safety checking possibilities of the original
795 *) The STACK code has been cleaned up, and certain type declarations
796 that didn't make a lot of sense have been brought in line. This has
797 also involved a cleanup of sorts in safestack.h to more correctly
798 map type-safe stack functions onto their plain stack counterparts.
799 This work has also resulted in a variety of "const"ifications of
800 lots of the code, especially "_cmp" operations which should normally
801 be prototyped with "const" parameters anyway.
804 *) When generating bytes for the first time in md_rand.c, 'stir the pool'
805 by seeding with STATE_SIZE dummy bytes (with zero entropy count).
806 (The PRNG state consists of two parts, the large pool 'state' and 'md',
807 where all of 'md' is used each time the PRNG is used, but 'state'
808 is used only indexed by a cyclic counter. As entropy may not be
809 well distributed from the beginning, 'md' is important as a
810 chaining variable. However, the output function chains only half
811 of 'md', i.e. 80 bits. ssleay_rand_add, on the other hand, chains
812 all of 'md', and seeding with STATE_SIZE dummy bytes will result
813 in all of 'state' being rewritten, with the new values depending
814 on virtually all of 'md'. This overcomes the 80 bit limitation.)
817 *) In ssl/s2_clnt.c and ssl/s3_clnt.c, call ERR_clear_error() when
818 the handshake is continued after ssl_verify_cert_chain();
819 otherwise, if SSL_VERIFY_NONE is set, remaining error codes
820 can lead to 'unexplainable' connection aborts later.
821 [Bodo Moeller; problem tracked down by Lutz Jaenicke]
823 *) Major EVP API cipher revision.
824 Add hooks for extra EVP features. This allows various cipher
825 parameters to be set in the EVP interface. Support added for variable
826 key length ciphers via the EVP_CIPHER_CTX_set_key_length() function and
827 setting of RC2 and RC5 parameters.
829 Modify EVP_OpenInit() and EVP_SealInit() to cope with variable key length
832 Remove lots of duplicated code from the EVP library. For example *every*
833 cipher init() function handles the 'iv' in the same way according to the
834 cipher mode. They also all do nothing if the 'key' parameter is NULL and
835 for CFB and OFB modes they zero ctx->num.
837 New functionality allows removal of S/MIME code RC2 hack.
839 Most of the routines have the same form and so can be declared in terms
842 By shifting this to the top level EVP_CipherInit() it can be removed from
843 all individual ciphers. If the cipher wants to handle IVs or keys
844 differently it can set the EVP_CIPH_CUSTOM_IV or EVP_CIPH_ALWAYS_CALL_INIT
847 Change lots of functions like EVP_EncryptUpdate() to now return a
848 value: although software versions of the algorithms cannot fail
849 any installed hardware versions can.
852 *) Implement SSL_OP_TLS_ROLLBACK_BUG: In ssl3_get_client_key_exchange, if
853 this option is set, tolerate broken clients that send the negotiated
854 protocol version number instead of the requested protocol version
858 *) Call dh_tmp_cb (set by ..._TMP_DH_CB) with correct 'is_export' flag;
859 i.e. non-zero for export ciphersuites, zero otherwise.
860 Previous versions had this flag inverted, inconsistent with
861 rsa_tmp_cb (..._TMP_RSA_CB).
862 [Bodo Moeller; problem reported by Amit Chopra]
864 *) Add missing DSA library text string. Work around for some IIS
865 key files with invalid SEQUENCE encoding.
868 *) Add a document (doc/standards.txt) that list all kinds of standards
869 and so on that are implemented in OpenSSL.
872 *) Enhance c_rehash script. Old version would mishandle certificates
873 with the same subject name hash and wouldn't handle CRLs at all.
874 Added -fingerprint option to crl utility, to support new c_rehash
878 *) Eliminate non-ANSI declarations in crypto.h and stack.h.
881 *) Fix for SSL server purpose checking. Server checking was
882 rejecting certificates which had extended key usage present
883 but no ssl client purpose.
884 [Steve Henson, reported by Rene Grosser <grosser@hisolutions.com>]
886 *) Make PKCS#12 code work with no password. The PKCS#12 spec
887 is a little unclear about how a blank password is handled.
888 Since the password in encoded as a BMPString with terminating
889 double NULL a zero length password would end up as just the
890 double NULL. However no password at all is different and is
891 handled differently in the PKCS#12 key generation code. NS
892 treats a blank password as zero length. MSIE treats it as no
893 password on export: but it will try both on import. We now do
894 the same: PKCS12_parse() tries zero length and no password if
895 the password is set to "" or NULL (NULL is now a valid password:
896 it wasn't before) as does the pkcs12 application.
899 *) Bugfixes in apps/x509.c: Avoid a memory leak; and don't use
900 perror when PEM_read_bio_X509_REQ fails, the error message must
901 be obtained from the error queue.
904 *) Avoid 'thread_hash' memory leak in crypto/err/err.c by freeing
905 it in ERR_remove_state if appropriate, and change ERR_get_state
906 accordingly to avoid race conditions (this is necessary because
907 thread_hash is no longer constant once set).
910 *) Bugfix for linux-elf makefile.one.
913 *) RSA_get_default_method() will now cause a default
914 RSA_METHOD to be chosen if one doesn't exist already.
915 Previously this was only set during a call to RSA_new()
916 or RSA_new_method(NULL) meaning it was possible for
917 RSA_get_default_method() to return NULL.
920 *) Added native name translation to the existing DSO code
921 that will convert (if the flag to do so is set) filenames
922 that are sufficiently small and have no path information
923 into a canonical native form. Eg. "blah" converted to
924 "libblah.so" or "blah.dll" etc.
927 *) New function ERR_error_string_n(e, buf, len) which is like
928 ERR_error_string(e, buf), but writes at most 'len' bytes
929 including the 0 terminator. For ERR_error_string_n, 'buf'
931 [Damien Miller <djm@mindrot.org>, Bodo Moeller]
933 *) CONF library reworked to become more general. A new CONF
934 configuration file reader "class" is implemented as well as a
935 new functions (NCONF_*, for "New CONF") to handle it. The now
936 old CONF_* functions are still there, but are reimplemented to
937 work in terms of the new functions. Also, a set of functions
938 to handle the internal storage of the configuration data is
939 provided to make it easier to write new configuration file
940 reader "classes" (I can definitely see something reading a
941 configuration file in XML format, for example), called _CONF_*,
942 or "the configuration storage API"...
944 The new configuration file reading functions are:
946 NCONF_new, NCONF_free, NCONF_load, NCONF_load_fp, NCONF_load_bio,
947 NCONF_get_section, NCONF_get_string, NCONF_get_numbre
949 NCONF_default, NCONF_WIN32
951 NCONF_dump_fp, NCONF_dump_bio
953 NCONF_default and NCONF_WIN32 are method (or "class") choosers,
954 NCONF_new creates a new CONF object. This works in the same way
955 as other interfaces in OpenSSL, like the BIO interface.
956 NCONF_dump_* dump the internal storage of the configuration file,
957 which is useful for debugging. All other functions take the same
958 arguments as the old CONF_* functions wth the exception of the
959 first that must be a `CONF *' instead of a `LHASH *'.
961 To make it easer to use the new classes with the old CONF_* functions,
962 the function CONF_set_default_method is provided.
965 *) Add '-tls1' option to 'openssl ciphers', which was already
966 mentioned in the documentation but had not been implemented.
967 (This option is not yet really useful because even the additional
968 experimental TLS 1.0 ciphers are currently treated as SSL 3.0 ciphers.)
971 *) Initial DSO code added into libcrypto for letting OpenSSL (and
972 OpenSSL-based applications) load shared libraries and bind to
973 them in a portable way.
974 [Geoff Thorpe, with contributions from Richard Levitte]
976 Changes between 0.9.5 and 0.9.5a [1 Apr 2000]
978 *) Make sure _lrotl and _lrotr are only used with MSVC.
980 *) Use lock CRYPTO_LOCK_RAND correctly in ssleay_rand_status
981 (the default implementation of RAND_status).
983 *) Rename openssl x509 option '-crlext', which was added in 0.9.5,
984 to '-clrext' (= clear extensions), as intended and documented.
985 [Bodo Moeller; inconsistency pointed out by Michael Attili
988 *) Fix for HMAC. It wasn't zeroing the rest of the block if the key length
989 was larger than the MD block size.
990 [Steve Henson, pointed out by Yost William <YostW@tce.com>]
992 *) Modernise PKCS12_parse() so it uses STACK_OF(X509) for its ca argument
993 fix a leak when the ca argument was passed as NULL. Stop X509_PUBKEY_set()
994 using the passed key: if the passed key was a private key the result
995 of X509_print(), for example, would be to print out all the private key
999 *) des_quad_cksum() byte order bug fix.
1000 [Ulf Möller, using the problem description in krb4-0.9.7, where
1001 the solution is attributed to Derrick J Brashear <shadow@DEMENTIA.ORG>]
1003 *) Fix so V_ASN1_APP_CHOOSE works again: however its use is strongly
1005 [Steve Henson, pointed out by Brian Korver <briank@cs.stanford.edu>]
1007 *) For easily testing in shell scripts whether some command
1008 'openssl XXX' exists, the new pseudo-command 'openssl no-XXX'
1009 returns with exit code 0 iff no command of the given name is available.
1010 'no-XXX' is printed in this case, 'XXX' otherwise. In both cases,
1011 the output goes to stdout and nothing is printed to stderr.
1012 Additional arguments are always ignored.
1014 Since for each cipher there is a command of the same name,
1015 the 'no-cipher' compilation switches can be tested this way.
1017 ('openssl no-XXX' is not able to detect pseudo-commands such
1018 as 'quit', 'list-XXX-commands', or 'no-XXX' itself.)
1021 *) Update test suite so that 'make test' succeeds in 'no-rsa' configuration.
1024 *) For SSL_[CTX_]set_tmp_dh, don't create a DH key if SSL_OP_SINGLE_DH_USE
1025 is set; it will be thrown away anyway because each handshake creates
1027 ssl_cert_dup, which is used by SSL_new, now copies DH keys in addition
1028 to parameters -- in previous versions (since OpenSSL 0.9.3) the
1029 'default key' from SSL_CTX_set_tmp_dh would always be lost, meanining
1030 you effectivly got SSL_OP_SINGLE_DH_USE when using this macro.
1033 *) New s_client option -ign_eof: EOF at stdin is ignored, and
1034 'Q' and 'R' lose their special meanings (quit/renegotiate).
1035 This is part of what -quiet does; unlike -quiet, -ign_eof
1036 does not suppress any output.
1039 *) Add compatibility options to the purpose and trust code. The
1040 purpose X509_PURPOSE_ANY is "any purpose" which automatically
1041 accepts a certificate or CA, this was the previous behaviour,
1042 with all the associated security issues.
1044 X509_TRUST_COMPAT is the old trust behaviour: only and
1045 automatically trust self signed roots in certificate store. A
1046 new trust setting X509_TRUST_DEFAULT is used to specify that
1047 a purpose has no associated trust setting and it should instead
1048 use the value in the default purpose.
1051 *) Fix the PKCS#8 DSA private key code so it decodes keys again
1052 and fix a memory leak.
1055 *) In util/mkerr.pl (which implements 'make errors'), preserve
1056 reason strings from the previous version of the .c file, as
1057 the default to have only downcase letters (and digits) in
1058 automatically generated reasons codes is not always appropriate.
1061 *) In ERR_load_ERR_strings(), build an ERR_LIB_SYS error reason table
1062 using strerror. Previously, ERR_reason_error_string() returned
1063 library names as reason strings for SYSerr; but SYSerr is a special
1064 case where small numbers are errno values, not library numbers.
1067 *) Add '-dsaparam' option to 'openssl dhparam' application. This
1068 converts DSA parameters into DH parameters. (When creating parameters,
1069 DSA_generate_parameters is used.)
1072 *) Include 'length' (recommended exponent length) in C code generated
1073 by 'openssl dhparam -C'.
1076 *) The second argument to set_label in perlasm was already being used
1077 so couldn't be used as a "file scope" flag. Moved to third argument
1081 *) In PEM_ASN1_write_bio and some other functions, use RAND_pseudo_bytes
1082 instead of RAND_bytes for encryption IVs and salts.
1085 *) Include RAND_status() into RAND_METHOD instead of implementing
1086 it only for md_rand.c Otherwise replacing the PRNG by calling
1087 RAND_set_rand_method would be impossible.
1090 *) Don't let DSA_generate_key() enter an infinite loop if the random
1091 number generation fails.
1094 *) New 'rand' application for creating pseudo-random output.
1097 *) Added configuration support for Linux/IA64
1098 [Rolf Haberrecker <rolf@suse.de>]
1100 *) Assembler module support for Mingw32.
1103 *) Shared library support for HPUX (in shlib/).
1104 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE> and Anonymous]
1106 *) Shared library support for Solaris gcc.
1107 [Lutz Behnke <behnke@trustcenter.de>]
1109 Changes between 0.9.4 and 0.9.5 [28 Feb 2000]
1111 *) PKCS7_encrypt() was adding text MIME headers twice because they
1112 were added manually and by SMIME_crlf_copy().
1115 *) In bntest.c don't call BN_rand with zero bits argument.
1116 [Steve Henson, pointed out by Andrew W. Gray <agray@iconsinc.com>]
1118 *) BN_mul bugfix: In bn_mul_part_recursion() only the a>a[n] && b>b[n]
1119 case was implemented. This caused BN_div_recp() to fail occasionally.
1122 *) Add an optional second argument to the set_label() in the perl
1123 assembly language builder. If this argument exists and is set
1124 to 1 it signals that the assembler should use a symbol whose
1125 scope is the entire file, not just the current function. This
1126 is needed with MASM which uses the format label:: for this scope.
1127 [Steve Henson, pointed out by Peter Runestig <peter@runestig.com>]
1129 *) Change the ASN1 types so they are typedefs by default. Before
1130 almost all types were #define'd to ASN1_STRING which was causing
1131 STACK_OF() problems: you couldn't declare STACK_OF(ASN1_UTF8STRING)
1135 *) Change names of new functions to the new get1/get0 naming
1136 convention: After 'get1', the caller owns a reference count
1137 and has to call ..._free; 'get0' returns a pointer to some
1138 data structure without incrementing reference counters.
1139 (Some of the existing 'get' functions increment a reference
1140 counter, some don't.)
1141 Similarly, 'set1' and 'add1' functions increase reference
1142 counters or duplicate objects.
1145 *) Allow for the possibility of temp RSA key generation failure:
1146 the code used to assume it always worked and crashed on failure.
1149 *) Fix potential buffer overrun problem in BIO_printf().
1150 [Ulf Möller, using public domain code by Patrick Powell; problem
1151 pointed out by David Sacerdote <das33@cornell.edu>]
1153 *) Support EGD <http://www.lothar.com/tech/crypto/>. New functions
1154 RAND_egd() and RAND_status(). In the command line application,
1155 the EGD socket can be specified like a seed file using RANDFILE
1159 *) Allow the string CERTIFICATE to be tolerated in PKCS#7 structures.
1160 Some CAs (e.g. Verisign) distribute certificates in this form.
1163 *) Remove the SSL_ALLOW_ADH compile option and set the default cipher
1164 list to exclude them. This means that no special compilation option
1165 is needed to use anonymous DH: it just needs to be included in the
1169 *) Change the EVP_MD_CTX_type macro so its meaning consistent with
1170 EVP_MD_type. The old functionality is available in a new macro called
1171 EVP_MD_md(). Change code that uses it and update docs.
1174 *) ..._ctrl functions now have corresponding ..._callback_ctrl functions
1175 where the 'void *' argument is replaced by a function pointer argument.
1176 Previously 'void *' was abused to point to functions, which works on
1177 many platforms, but is not correct. As these functions are usually
1178 called by macros defined in OpenSSL header files, most source code
1179 should work without changes.
1182 *) <openssl/opensslconf.h> (which is created by Configure) now contains
1183 sections with information on -D... compiler switches used for
1184 compiling the library so that applications can see them. To enable
1185 one of these sections, a pre-processor symbol OPENSSL_..._DEFINES
1186 must be defined. E.g.,
1187 #define OPENSSL_ALGORITHM_DEFINES
1188 #include <openssl/opensslconf.h>
1189 defines all pertinent NO_<algo> symbols, such as NO_IDEA, NO_RSA, etc.
1190 [Richard Levitte, Ulf and Bodo Möller]
1192 *) Bugfix: Tolerate fragmentation and interleaving in the SSL 3/TLS
1196 *) Change the 'other' type in certificate aux info to a STACK_OF
1197 X509_ALGOR. Although not an AlgorithmIdentifier as such it has
1198 the required ASN1 format: arbitrary types determined by an OID.
1201 *) Add some PEM_write_X509_REQ_NEW() functions and a command line
1202 argument to 'req'. This is not because the function is newer or
1203 better than others it just uses the work 'NEW' in the certificate
1204 request header lines. Some software needs this.
1207 *) Reorganise password command line arguments: now passwords can be
1208 obtained from various sources. Delete the PEM_cb function and make
1209 it the default behaviour: i.e. if the callback is NULL and the
1210 usrdata argument is not NULL interpret it as a null terminated pass
1211 phrase. If usrdata and the callback are NULL then the pass phrase
1212 is prompted for as usual.
1215 *) Add support for the Compaq Atalla crypto accelerator. If it is installed,
1216 the support is automatically enabled. The resulting binaries will
1217 autodetect the card and use it if present.
1218 [Ben Laurie and Compaq Inc.]
1220 *) Work around for Netscape hang bug. This sends certificate request
1221 and server done in one record. Since this is perfectly legal in the
1222 SSL/TLS protocol it isn't a "bug" option and is on by default. See
1223 the bugs/SSLv3 entry for more info.
1226 *) HP-UX tune-up: new unified configs, HP C compiler bug workaround.
1229 *) Add -rand argument to smime and pkcs12 applications and read/write
1233 *) New 'passwd' tool for crypt(3) and apr1 password hashes.
1236 *) Add command line password options to the remaining applications.
1239 *) Bug fix for BN_div_recp() for numerators with an even number of
1243 *) More tests in bntest.c, and changed test_bn output.
1246 *) ./config recognizes MacOS X now.
1249 *) Bug fix for BN_div() when the first words of num and divsor are
1250 equal (it gave wrong results if (rem=(n1-q*d0)&BN_MASK2) < d0).
1253 *) Add support for various broken PKCS#8 formats, and command line
1254 options to produce them.
1257 *) New functions BN_CTX_start(), BN_CTX_get() and BT_CTX_end() to
1258 get temporary BIGNUMs from a BN_CTX.
1261 *) Correct return values in BN_mod_exp_mont() and BN_mod_exp2_mont()
1265 *) Change the SSLeay_add_all_*() functions to OpenSSL_add_all_*() and
1266 include a #define from the old name to the new. The original intent
1267 was that statically linked binaries could for example just call
1268 SSLeay_add_all_ciphers() to just add ciphers to the table and not
1269 link with digests. This never worked becayse SSLeay_add_all_digests()
1270 and SSLeay_add_all_ciphers() were in the same source file so calling
1271 one would link with the other. They are now in separate source files.
1274 *) Add a new -notext option to 'ca' and a -pubkey option to 'spkac'.
1277 *) Use a less unusual form of the Miller-Rabin primality test (it used
1278 a binary algorithm for exponentiation integrated into the Miller-Rabin
1279 loop, our standard modexp algorithms are faster).
1282 *) Support for the EBCDIC character set completed.
1283 [Martin Kraemer <Martin.Kraemer@Mch.SNI.De>]
1285 *) Source code cleanups: use const where appropriate, eliminate casts,
1286 use void * instead of char * in lhash.
1289 *) Bugfix: ssl3_send_server_key_exchange was not restartable
1290 (the state was not changed to SSL3_ST_SW_KEY_EXCH_B, and because of
1291 this the server could overwrite ephemeral keys that the client
1295 *) Turn DSA_is_prime into a macro that calls BN_is_prime,
1296 using 50 iterations of the Rabin-Miller test.
1298 DSA_generate_parameters now uses BN_is_prime_fasttest (with 50
1299 iterations of the Rabin-Miller test as required by the appendix
1300 to FIPS PUB 186[-1]) instead of DSA_is_prime.
1301 As BN_is_prime_fasttest includes trial division, DSA parameter
1302 generation becomes much faster.
1304 This implies a change for the callback functions in DSA_is_prime
1305 and DSA_generate_parameters: The callback function is called once
1306 for each positive witness in the Rabin-Miller test, not just
1307 occasionally in the inner loop; and the parameters to the
1308 callback function now provide an iteration count for the outer
1309 loop rather than for the current invocation of the inner loop.
1310 DSA_generate_parameters additionally can call the callback
1311 function with an 'iteration count' of -1, meaning that a
1312 candidate has passed the trial division test (when q is generated
1313 from an application-provided seed, trial division is skipped).
1316 *) New function BN_is_prime_fasttest that optionally does trial
1317 division before starting the Rabin-Miller test and has
1318 an additional BN_CTX * argument (whereas BN_is_prime always
1319 has to allocate at least one BN_CTX).
1320 'callback(1, -1, cb_arg)' is called when a number has passed the
1321 trial division stage.
1324 *) Fix for bug in CRL encoding. The validity dates weren't being handled
1328 *) New -pkcs12 option to CA.pl script to write out a PKCS#12 file.
1331 *) New function BN_pseudo_rand().
1334 *) Clean up BN_mod_mul_montgomery(): replace the broken (and unreadable)
1335 bignum version of BN_from_montgomery() with the working code from
1336 SSLeay 0.9.0 (the word based version is faster anyway), and clean up
1340 *) Avoid a race condition in s2_clnt.c (function get_server_hello) that
1341 made it impossible to use the same SSL_SESSION data structure in
1342 SSL2 clients in multiple threads.
1345 *) The return value of RAND_load_file() no longer counts bytes obtained
1346 by stat(). RAND_load_file(..., -1) is new and uses the complete file
1347 to seed the PRNG (previously an explicit byte count was required).
1348 [Ulf Möller, Bodo Möller]
1350 *) Clean up CRYPTO_EX_DATA functions, some of these didn't have prototypes
1351 used (char *) instead of (void *) and had casts all over the place.
1354 *) Make BN_generate_prime() return NULL on error if ret!=NULL.
1357 *) Retain source code compatibility for BN_prime_checks macro:
1358 BN_is_prime(..., BN_prime_checks, ...) now uses
1359 BN_prime_checks_for_size to determine the appropriate number of
1360 Rabin-Miller iterations.
1363 *) Diffie-Hellman uses "safe" primes: DH_check() return code renamed to
1364 DH_CHECK_P_NOT_SAFE_PRIME.
1365 (Check if this is true? OpenPGP calls them "strong".)
1368 *) Merge the functionality of "dh" and "gendh" programs into a new program
1369 "dhparam". The old programs are retained for now but will handle DH keys
1370 (instead of parameters) in future.
1373 *) Make the ciphers, s_server and s_client programs check the return values
1374 when a new cipher list is set.
1377 *) Enhance the SSL/TLS cipher mechanism to correctly handle the TLS 56bit
1378 ciphers. Before when the 56bit ciphers were enabled the sorting was
1381 The syntax for the cipher sorting has been extended to support sorting by
1382 cipher-strength (using the strength_bits hard coded in the tables).
1383 The new command is "@STRENGTH" (see also doc/apps/ciphers.pod).
1385 Fix a bug in the cipher-command parser: when supplying a cipher command
1386 string with an "undefined" symbol (neither command nor alphanumeric
1387 [A-Za-z0-9], ssl_set_cipher_list used to hang in an endless loop. Now
1388 an error is flagged.
1390 Due to the strength-sorting extension, the code of the
1391 ssl_create_cipher_list() function was completely rearranged. I hope that
1392 the readability was also increased :-)
1393 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
1395 *) Minor change to 'x509' utility. The -CAcreateserial option now uses 1
1396 for the first serial number and places 2 in the serial number file. This
1397 avoids problems when the root CA is created with serial number zero and
1398 the first user certificate has the same issuer name and serial number
1402 *) Fixes to X509_ATTRIBUTE utilities, change the 'req' program so it uses
1403 the new code. Add documentation for this stuff.
1406 *) Changes to X509_ATTRIBUTE utilities. These have been renamed from
1407 X509_*() to X509at_*() on the grounds that they don't handle X509
1408 structures and behave in an analagous way to the X509v3 functions:
1409 they shouldn't be called directly but wrapper functions should be used
1412 So we also now have some wrapper functions that call the X509at functions
1413 when passed certificate requests. (TO DO: similar things can be done with
1414 PKCS#7 signed and unsigned attributes, PKCS#12 attributes and a few other
1415 things. Some of these need some d2i or i2d and print functionality
1416 because they handle more complex structures.)
1419 *) Add missing #ifndefs that caused missing symbols when building libssl
1420 as a shared library without RSA. Use #ifndef NO_SSL2 instead of
1421 NO_RSA in ssl/s2*.c.
1422 [Kris Kennaway <kris@hub.freebsd.org>, modified by Ulf Möller]
1424 *) Precautions against using the PRNG uninitialized: RAND_bytes() now
1425 has a return value which indicates the quality of the random data
1426 (1 = ok, 0 = not seeded). Also an error is recorded on the thread's
1427 error queue. New function RAND_pseudo_bytes() generates output that is
1428 guaranteed to be unique but not unpredictable. RAND_add is like
1429 RAND_seed, but takes an extra argument for an entropy estimate
1430 (RAND_seed always assumes full entropy).
1433 *) Do more iterations of Rabin-Miller probable prime test (specifically,
1434 3 for 1024-bit primes, 6 for 512-bit primes, 12 for 256-bit primes
1435 instead of only 2 for all lengths; see BN_prime_checks_for_size definition
1436 in crypto/bn/bn_prime.c for the complete table). This guarantees a
1437 false-positive rate of at most 2^-80 for random input.
1440 *) Rewrite ssl3_read_n (ssl/s3_pkt.c) avoiding a couple of bugs.
1443 *) New function X509_CTX_rget_chain() (renamed to X509_CTX_get1_chain
1444 in the 0.9.5 release), this returns the chain
1445 from an X509_CTX structure with a dup of the stack and all
1446 the X509 reference counts upped: so the stack will exist
1447 after X509_CTX_cleanup() has been called. Modify pkcs12.c
1450 Also make SSL_SESSION_print() print out the verify return
1454 *) Add manpage for the pkcs12 command. Also change the default
1455 behaviour so MAC iteration counts are used unless the new
1456 -nomaciter option is used. This improves file security and
1457 only older versions of MSIE (4.0 for example) need it.
1460 *) Honor the no-xxx Configure options when creating .DEF files.
1463 *) Add PKCS#10 attributes to field table: challengePassword,
1464 unstructuredName and unstructuredAddress. These are taken from
1465 draft PKCS#9 v2.0 but are compatible with v1.2 provided no
1466 international characters are used.
1468 More changes to X509_ATTRIBUTE code: allow the setting of types
1469 based on strings. Remove the 'loc' parameter when adding
1470 attributes because these will be a SET OF encoding which is sorted
1474 *) Initial changes to the 'req' utility to allow request generation
1475 automation. This will allow an application to just generate a template
1476 file containing all the field values and have req construct the
1479 Initial support for X509_ATTRIBUTE handling. Stacks of these are
1480 used all over the place including certificate requests and PKCS#7
1481 structures. They are currently handled manually where necessary with
1482 some primitive wrappers for PKCS#7. The new functions behave in a
1483 manner analogous to the X509 extension functions: they allow
1484 attributes to be looked up by NID and added.
1486 Later something similar to the X509V3 code would be desirable to
1487 automatically handle the encoding, decoding and printing of the
1488 more complex types. The string types like challengePassword can
1489 be handled by the string table functions.
1491 Also modified the multi byte string table handling. Now there is
1492 a 'global mask' which masks out certain types. The table itself
1493 can use the flag STABLE_NO_MASK to ignore the mask setting: this
1494 is useful when for example there is only one permissible type
1495 (as in countryName) and using the mask might result in no valid
1499 *) Clean up 'Finished' handling, and add functions SSL_get_finished and
1500 SSL_get_peer_finished to allow applications to obtain the latest
1501 Finished messages sent to the peer or expected from the peer,
1502 respectively. (SSL_get_peer_finished is usually the Finished message
1503 actually received from the peer, otherwise the protocol will be aborted.)
1505 As the Finished message are message digests of the complete handshake
1506 (with a total of 192 bits for TLS 1.0 and more for SSL 3.0), they can
1507 be used for external authentication procedures when the authentication
1508 provided by SSL/TLS is not desired or is not enough.
1511 *) Enhanced support for Alpha Linux is added. Now ./config checks if
1512 the host supports BWX extension and if Compaq C is present on the
1513 $PATH. Just exploiting of the BWX extension results in 20-30%
1514 performance kick for some algorithms, e.g. DES and RC4 to mention
1515 a couple. Compaq C in turn generates ~20% faster code for MD5 and
1519 *) Add support for MS "fast SGC". This is arguably a violation of the
1520 SSL3/TLS protocol. Netscape SGC does two handshakes: the first with
1521 weak crypto and after checking the certificate is SGC a second one
1522 with strong crypto. MS SGC stops the first handshake after receiving
1523 the server certificate message and sends a second client hello. Since
1524 a server will typically do all the time consuming operations before
1525 expecting any further messages from the client (server key exchange
1526 is the most expensive) there is little difference between the two.
1528 To get OpenSSL to support MS SGC we have to permit a second client
1529 hello message after we have sent server done. In addition we have to
1530 reset the MAC if we do get this second client hello.
1533 *) Add a function 'd2i_AutoPrivateKey()' this will automatically decide
1534 if a DER encoded private key is RSA or DSA traditional format. Changed
1535 d2i_PrivateKey_bio() to use it. This is only needed for the "traditional"
1536 format DER encoded private key. Newer code should use PKCS#8 format which
1537 has the key type encoded in the ASN1 structure. Added DER private key
1538 support to pkcs8 application.
1541 *) SSL 3/TLS 1 servers now don't request certificates when an anonymous
1542 ciphersuites has been selected (as required by the SSL 3/TLS 1
1543 specifications). Exception: When SSL_VERIFY_FAIL_IF_NO_PEER_CERT
1544 is set, we interpret this as a request to violate the specification
1545 (the worst that can happen is a handshake failure, and 'correct'
1546 behaviour would result in a handshake failure anyway).
1549 *) In SSL_CTX_add_session, take into account that there might be multiple
1550 SSL_SESSION structures with the same session ID (e.g. when two threads
1551 concurrently obtain them from an external cache).
1552 The internal cache can handle only one SSL_SESSION with a given ID,
1553 so if there's a conflict, we now throw out the old one to achieve
1557 *) Add OIDs for idea and blowfish in CBC mode. This will allow both
1558 to be used in PKCS#5 v2.0 and S/MIME. Also add checking to
1559 some routines that use cipher OIDs: some ciphers do not have OIDs
1560 defined and so they cannot be used for S/MIME and PKCS#5 v2.0 for
1564 *) Simplify the trust setting structure and code. Now we just have
1565 two sequences of OIDs for trusted and rejected settings. These will
1566 typically have values the same as the extended key usage extension
1567 and any application specific purposes.
1569 The trust checking code now has a default behaviour: it will just
1570 check for an object with the same NID as the passed id. Functions can
1571 be provided to override either the default behaviour or the behaviour
1572 for a given id. SSL client, server and email already have functions
1573 in place for compatibility: they check the NID and also return "trusted"
1574 if the certificate is self signed.
1577 *) Add d2i,i2d bio/fp functions for PrivateKey: these convert the
1578 traditional format into an EVP_PKEY structure.
1581 *) Add a password callback function PEM_cb() which either prompts for
1582 a password if usr_data is NULL or otherwise assumes it is a null
1583 terminated password. Allow passwords to be passed on command line
1584 environment or config files in a few more utilities.
1587 *) Add a bunch of DER and PEM functions to handle PKCS#8 format private
1588 keys. Add some short names for PKCS#8 PBE algorithms and allow them
1589 to be specified on the command line for the pkcs8 and pkcs12 utilities.
1590 Update documentation.
1593 *) Support for ASN1 "NULL" type. This could be handled before by using
1594 ASN1_TYPE but there wasn't any function that would try to read a NULL
1595 and produce an error if it couldn't. For compatibility we also have
1596 ASN1_NULL_new() and ASN1_NULL_free() functions but these are faked and
1597 don't allocate anything because they don't need to.
1600 *) Initial support for MacOS is now provided. Examine INSTALL.MacOS
1602 [Andy Polyakov, Roy Woods <roy@centicsystems.ca>]
1604 *) Rebuild of the memory allocation routines used by OpenSSL code and
1605 possibly others as well. The purpose is to make an interface that
1606 provide hooks so anyone can build a separate set of allocation and
1607 deallocation routines to be used by OpenSSL, for example memory
1608 pool implementations, or something else, which was previously hard
1609 since Malloc(), Realloc() and Free() were defined as macros having
1610 the values malloc, realloc and free, respectively (except for Win32
1611 compilations). The same is provided for memory debugging code.
1612 OpenSSL already comes with functionality to find memory leaks, but
1613 this gives people a chance to debug other memory problems.
1615 With these changes, a new set of functions and macros have appeared:
1617 CRYPTO_set_mem_debug_functions() [F]
1618 CRYPTO_get_mem_debug_functions() [F]
1619 CRYPTO_dbg_set_options() [F]
1620 CRYPTO_dbg_get_options() [F]
1621 CRYPTO_malloc_debug_init() [M]
1623 The memory debug functions are NULL by default, unless the library
1624 is compiled with CRYPTO_MDEBUG or friends is defined. If someone
1625 wants to debug memory anyway, CRYPTO_malloc_debug_init() (which
1626 gives the standard debugging functions that come with OpenSSL) or
1627 CRYPTO_set_mem_debug_functions() (tells OpenSSL to use functions
1628 provided by the library user) must be used. When the standard
1629 debugging functions are used, CRYPTO_dbg_set_options can be used to
1630 request additional information:
1631 CRYPTO_dbg_set_options(V_CYRPTO_MDEBUG_xxx) corresponds to setting
1632 the CRYPTO_MDEBUG_xxx macro when compiling the library.
1634 Also, things like CRYPTO_set_mem_functions will always give the
1635 expected result (the new set of functions is used for allocation
1636 and deallocation) at all times, regardless of platform and compiler
1639 To finish it up, some functions that were never use in any other
1640 way than through macros have a new API and new semantic:
1643 CRYPTO_dbg_realloc()
1646 All macros of value have retained their old syntax.
1647 [Richard Levitte and Bodo Moeller]
1649 *) Some S/MIME fixes. The OID for SMIMECapabilities was wrong, the
1650 ordering of SMIMECapabilities wasn't in "strength order" and there
1651 was a missing NULL in the AlgorithmIdentifier for the SHA1 signature
1655 *) Some ASN1 types with illegal zero length encoding (INTEGER,
1656 ENUMERATED and OBJECT IDENTIFIER) choked the ASN1 routines.
1657 [Frans Heymans <fheymans@isaserver.be>, modified by Steve Henson]
1659 *) Merge in my S/MIME library for OpenSSL. This provides a simple
1660 S/MIME API on top of the PKCS#7 code, a MIME parser (with enough
1661 functionality to handle multipart/signed properly) and a utility
1662 called 'smime' to call all this stuff. This is based on code I
1663 originally wrote for Celo who have kindly allowed it to be
1664 included in OpenSSL.
1667 *) Add variants des_set_key_checked and des_set_key_unchecked of
1668 des_set_key (aka des_key_sched). Global variable des_check_key
1669 decides which of these is called by des_set_key; this way
1670 des_check_key behaves as it always did, but applications and
1671 the library itself, which was buggy for des_check_key == 1,
1672 have a cleaner way to pick the version they need.
1675 *) New function PKCS12_newpass() which changes the password of a
1679 *) Modify X509_TRUST and X509_PURPOSE so it also uses a static and
1680 dynamic mix. In both cases the ids can be used as an index into the
1681 table. Also modified the X509_TRUST_add() and X509_PURPOSE_add()
1682 functions so they accept a list of the field values and the
1683 application doesn't need to directly manipulate the X509_TRUST
1687 *) Modify the ASN1_STRING_TABLE stuff so it also uses bsearch and doesn't
1691 *) Modify the way the V3 extension code looks up extensions. This now
1692 works in a similar way to the object code: we have some "standard"
1693 extensions in a static table which is searched with OBJ_bsearch()
1694 and the application can add dynamic ones if needed. The file
1695 crypto/x509v3/ext_dat.h now has the info: this file needs to be
1696 updated whenever a new extension is added to the core code and kept
1697 in ext_nid order. There is a simple program 'tabtest.c' which checks
1698 this. New extensions are not added too often so this file can readily
1699 be maintained manually.
1701 There are two big advantages in doing things this way. The extensions
1702 can be looked up immediately and no longer need to be "added" using
1703 X509V3_add_standard_extensions(): this function now does nothing.
1704 [Side note: I get *lots* of email saying the extension code doesn't
1705 work because people forget to call this function]
1706 Also no dynamic allocation is done unless new extensions are added:
1707 so if we don't add custom extensions there is no need to call
1708 X509V3_EXT_cleanup().
1711 *) Modify enc utility's salting as follows: make salting the default. Add a
1712 magic header, so unsalted files fail gracefully instead of just decrypting
1713 to garbage. This is because not salting is a big security hole, so people
1714 should be discouraged from doing it.
1717 *) Fixes and enhancements to the 'x509' utility. It allowed a message
1718 digest to be passed on the command line but it only used this
1719 parameter when signing a certificate. Modified so all relevant
1720 operations are affected by the digest parameter including the
1721 -fingerprint and -x509toreq options. Also -x509toreq choked if a
1722 DSA key was used because it didn't fix the digest.
1725 *) Initial certificate chain verify code. Currently tests the untrusted
1726 certificates for consistency with the verify purpose (which is set
1727 when the X509_STORE_CTX structure is set up) and checks the pathlength.
1729 There is a NO_CHAIN_VERIFY compilation option to keep the old behaviour:
1730 this is because it will reject chains with invalid extensions whereas
1731 every previous version of OpenSSL and SSLeay made no checks at all.
1733 Trust code: checks the root CA for the relevant trust settings. Trust
1734 settings have an initial value consistent with the verify purpose: e.g.
1735 if the verify purpose is for SSL client use it expects the CA to be
1736 trusted for SSL client use. However the default value can be changed to
1737 permit custom trust settings: one example of this would be to only trust
1738 certificates from a specific "secure" set of CAs.
1740 Also added X509_STORE_CTX_new() and X509_STORE_CTX_free() functions
1741 which should be used for version portability: especially since the
1742 verify structure is likely to change more often now.
1744 SSL integration. Add purpose and trust to SSL_CTX and SSL and functions
1745 to set them. If not set then assume SSL clients will verify SSL servers
1748 Two new options to the verify program: -untrusted allows a set of
1749 untrusted certificates to be passed in and -purpose which sets the
1750 intended purpose of the certificate. If a purpose is set then the
1751 new chain verify code is used to check extension consistency.
1754 *) Support for the authority information access extension.
1757 *) Modify RSA and DSA PEM read routines to transparently handle
1758 PKCS#8 format private keys. New *_PUBKEY_* functions that handle
1759 public keys in a format compatible with certificate
1760 SubjectPublicKeyInfo structures. Unfortunately there were already
1761 functions called *_PublicKey_* which used various odd formats so
1762 these are retained for compatibility: however the DSA variants were
1763 never in a public release so they have been deleted. Changed dsa/rsa
1764 utilities to handle the new format: note no releases ever handled public
1765 keys so we should be OK.
1767 The primary motivation for this change is to avoid the same fiasco
1768 that dogs private keys: there are several incompatible private key
1769 formats some of which are standard and some OpenSSL specific and
1770 require various evil hacks to allow partial transparent handling and
1771 even then it doesn't work with DER formats. Given the option anything
1772 other than PKCS#8 should be dumped: but the other formats have to
1773 stay in the name of compatibility.
1775 With public keys and the benefit of hindsight one standard format
1776 is used which works with EVP_PKEY, RSA or DSA structures: though
1777 it clearly returns an error if you try to read the wrong kind of key.
1779 Added a -pubkey option to the 'x509' utility to output the public key.
1780 Also rename the EVP_PKEY_get_*() to EVP_PKEY_rget_*()
1781 (renamed to EVP_PKEY_get1_*() in the OpenSSL 0.9.5 release) and add
1782 EVP_PKEY_rset_*() functions (renamed to EVP_PKEY_set1_*())
1783 that do the same as the EVP_PKEY_assign_*() except they up the
1784 reference count of the added key (they don't "swallow" the
1788 *) Fixes to crypto/x509/by_file.c the code to read in certificates and
1789 CRLs would fail if the file contained no certificates or no CRLs:
1790 added a new function to read in both types and return the number
1791 read: this means that if none are read it will be an error. The
1792 DER versions of the certificate and CRL reader would always fail
1793 because it isn't possible to mix certificates and CRLs in DER format
1794 without choking one or the other routine. Changed this to just read
1795 a certificate: this is the best we can do. Also modified the code
1796 in apps/verify.c to take notice of return codes: it was previously
1797 attempting to read in certificates from NULL pointers and ignoring
1798 any errors: this is one reason why the cert and CRL reader seemed
1799 to work. It doesn't check return codes from the default certificate
1800 routines: these may well fail if the certificates aren't installed.
1803 *) Code to support otherName option in GeneralName.
1806 *) First update to verify code. Change the verify utility
1807 so it warns if it is passed a self signed certificate:
1808 for consistency with the normal behaviour. X509_verify
1809 has been modified to it will now verify a self signed
1810 certificate if *exactly* the same certificate appears
1811 in the store: it was previously impossible to trust a
1812 single self signed certificate. This means that:
1813 openssl verify ss.pem
1814 now gives a warning about a self signed certificate but
1815 openssl verify -CAfile ss.pem ss.pem
1819 *) For servers, store verify_result in SSL_SESSION data structure
1820 (and add it to external session representation).
1821 This is needed when client certificate verifications fails,
1822 but an application-provided verification callback (set by
1823 SSL_CTX_set_cert_verify_callback) allows accepting the session
1824 anyway (i.e. leaves x509_store_ctx->error != X509_V_OK
1825 but returns 1): When the session is reused, we have to set
1826 ssl->verify_result to the appropriate error code to avoid
1828 [Bodo Moeller, problem pointed out by Lutz Jaenicke]
1830 *) Fix a bug in the new PKCS#7 code: it didn't consider the
1831 case in PKCS7_dataInit() where the signed PKCS7 structure
1832 didn't contain any existing data because it was being created.
1833 [Po-Cheng Chen <pocheng@nst.com.tw>, slightly modified by Steve Henson]
1835 *) Add a salt to the key derivation routines in enc.c. This
1836 forms the first 8 bytes of the encrypted file. Also add a
1837 -S option to allow a salt to be input on the command line.
1840 *) New function X509_cmp(). Oddly enough there wasn't a function
1841 to compare two certificates. We do this by working out the SHA1
1842 hash and comparing that. X509_cmp() will be needed by the trust
1846 *) SSL_get1_session() is like SSL_get_session(), but increments
1847 the reference count in the SSL_SESSION returned.
1848 [Geoff Thorpe <geoff@eu.c2.net>]
1850 *) Fix for 'req': it was adding a null to request attributes.
1851 Also change the X509_LOOKUP and X509_INFO code to handle
1852 certificate auxiliary information.
1855 *) Add support for 40 and 64 bit RC2 and RC4 algorithms: document
1859 *) Add the possibility to add extra information to the memory leak
1860 detecting output, to form tracebacks, showing from where each
1861 allocation was originated: CRYPTO_push_info("constant string") adds
1862 the string plus current file name and line number to a per-thread
1863 stack, CRYPTO_pop_info() does the obvious, CRYPTO_remove_all_info()
1864 is like calling CYRPTO_pop_info() until the stack is empty.
1865 Also updated memory leak detection code to be multi-thread-safe.
1868 *) Add options -text and -noout to pkcs7 utility and delete the
1869 encryption options which never did anything. Update docs.
1872 *) Add options to some of the utilities to allow the pass phrase
1873 to be included on either the command line (not recommended on
1874 OSes like Unix) or read from the environment. Update the
1875 manpages and fix a few bugs.
1878 *) Add a few manpages for some of the openssl commands.
1881 *) Fix the -revoke option in ca. It was freeing up memory twice,
1882 leaking and not finding already revoked certificates.
1885 *) Extensive changes to support certificate auxiliary information.
1886 This involves the use of X509_CERT_AUX structure and X509_AUX
1887 functions. An X509_AUX function such as PEM_read_X509_AUX()
1888 can still read in a certificate file in the usual way but it
1889 will also read in any additional "auxiliary information". By
1890 doing things this way a fair degree of compatibility can be
1891 retained: existing certificates can have this information added
1892 using the new 'x509' options.
1894 Current auxiliary information includes an "alias" and some trust
1895 settings. The trust settings will ultimately be used in enhanced
1896 certificate chain verification routines: currently a certificate
1897 can only be trusted if it is self signed and then it is trusted
1901 *) Fix assembler for Alpha (tested only on DEC OSF not Linux or *BSD).
1902 The problem was that one of the replacement routines had not been working
1903 since SSLeay releases. For now the offending routine has been replaced
1904 with non-optimised assembler. Even so, this now gives around 95%
1905 performance improvement for 1024 bit RSA signs.
1908 *) Hack to fix PKCS#7 decryption when used with some unorthodox RC2
1909 handling. Most clients have the effective key size in bits equal to
1910 the key length in bits: so a 40 bit RC2 key uses a 40 bit (5 byte) key.
1911 A few however don't do this and instead use the size of the decrypted key
1912 to determine the RC2 key length and the AlgorithmIdentifier to determine
1913 the effective key length. In this case the effective key length can still
1914 be 40 bits but the key length can be 168 bits for example. This is fixed
1915 by manually forcing an RC2 key into the EVP_PKEY structure because the
1916 EVP code can't currently handle unusual RC2 key sizes: it always assumes
1917 the key length and effective key length are equal.
1920 *) Add a bunch of functions that should simplify the creation of
1921 X509_NAME structures. Now you should be able to do:
1922 X509_NAME_add_entry_by_txt(nm, "CN", MBSTRING_ASC, "Steve", -1, -1, 0);
1923 and have it automatically work out the correct field type and fill in
1924 the structures. The more adventurous can try:
1925 X509_NAME_add_entry_by_txt(nm, field, MBSTRING_UTF8, str, -1, -1, 0);
1926 and it will (hopefully) work out the correct multibyte encoding.
1929 *) Change the 'req' utility to use the new field handling and multibyte
1930 copy routines. Before the DN field creation was handled in an ad hoc
1931 way in req, ca, and x509 which was rather broken and didn't support
1932 BMPStrings or UTF8Strings. Since some software doesn't implement
1933 BMPStrings or UTF8Strings yet, they can be enabled using the config file
1934 using the dirstring_type option. See the new comment in the default
1935 openssl.cnf for more info.
1938 *) Make crypto/rand/md_rand.c more robust:
1939 - Assure unique random numbers after fork().
1940 - Make sure that concurrent threads access the global counter and
1941 md serializably so that we never lose entropy in them
1942 or use exactly the same state in multiple threads.
1943 Access to the large state is not always serializable because
1944 the additional locking could be a performance killer, and
1945 md should be large enough anyway.
1948 *) New file apps/app_rand.c with commonly needed functionality
1949 for handling the random seed file.
1951 Use the random seed file in some applications that previously did not:
1953 dsaparam -genkey (which also ignored its '-rand' option),
1956 x509 (when signing).
1957 Except on systems with /dev/urandom, it is crucial to have a random
1958 seed file at least for key creation, DSA signing, and for DH exchanges;
1959 for RSA signatures we could do without one.
1961 gendh and gendsa (unlike genrsa) used to read only the first byte
1962 of each file listed in the '-rand' option. The function as previously
1963 found in genrsa is now in app_rand.c and is used by all programs
1964 that support '-rand'.
1967 *) In RAND_write_file, use mode 0600 for creating files;
1968 don't just chmod when it may be too late.
1971 *) Report an error from X509_STORE_load_locations
1972 when X509_LOOKUP_load_file or X509_LOOKUP_add_dir failed.
1975 *) New function ASN1_mbstring_copy() this copies a string in either
1976 ASCII, Unicode, Universal (4 bytes per character) or UTF8 format
1977 into an ASN1_STRING type. A mask of permissible types is passed
1978 and it chooses the "minimal" type to use or an error if not type
1982 *) Add function equivalents to the various macros in asn1.h. The old
1983 macros are retained with an M_ prefix. Code inside the library can
1984 use the M_ macros. External code (including the openssl utility)
1985 should *NOT* in order to be "shared library friendly".
1988 *) Add various functions that can check a certificate's extensions
1989 to see if it usable for various purposes such as SSL client,
1990 server or S/MIME and CAs of these types. This is currently
1991 VERY EXPERIMENTAL but will ultimately be used for certificate chain
1992 verification. Also added a -purpose flag to x509 utility to
1993 print out all the purposes.
1996 *) Add a CRYPTO_EX_DATA to X509 certificate structure and associated
2000 *) New X509V3_{X509,CRL,REVOKED}_get_d2i() functions. These will search
2001 for, obtain and decode and extension and obtain its critical flag.
2002 This allows all the necessary extension code to be handled in a
2003 single function call.
2006 *) RC4 tune-up featuring 30-40% performance improvement on most RISC
2007 platforms. See crypto/rc4/rc4_enc.c for further details.
2010 *) New -noout option to asn1parse. This causes no output to be produced
2011 its main use is when combined with -strparse and -out to extract data
2012 from a file (which may not be in ASN.1 format).
2015 *) Fix for pkcs12 program. It was hashing an invalid certificate pointer
2016 when producing the local key id.
2017 [Richard Levitte <levitte@stacken.kth.se>]
2019 *) New option -dhparam in s_server. This allows a DH parameter file to be
2020 stated explicitly. If it is not stated then it tries the first server
2021 certificate file. The previous behaviour hard coded the filename
2025 *) Add -pubin and -pubout options to the rsa and dsa commands. These allow
2026 a public key to be input or output. For example:
2027 openssl rsa -in key.pem -pubout -out pubkey.pem
2028 Also added necessary DSA public key functions to handle this.
2031 *) Fix so PKCS7_dataVerify() doesn't crash if no certificates are contained
2032 in the message. This was handled by allowing
2033 X509_find_by_issuer_and_serial() to tolerate a NULL passed to it.
2034 [Steve Henson, reported by Sampo Kellomaki <sampo@mail.neuronio.pt>]
2036 *) Fix for bug in d2i_ASN1_bytes(): other ASN1 functions add an extra null
2037 to the end of the strings whereas this didn't. This would cause problems
2038 if strings read with d2i_ASN1_bytes() were later modified.
2039 [Steve Henson, reported by Arne Ansper <arne@ats.cyber.ee>]
2041 *) Fix for base64 decode bug. When a base64 bio reads only one line of
2042 data and it contains EOF it will end up returning an error. This is
2043 caused by input 46 bytes long. The cause is due to the way base64
2044 BIOs find the start of base64 encoded data. They do this by trying a
2045 trial decode on each line until they find one that works. When they
2046 do a flag is set and it starts again knowing it can pass all the
2047 data directly through the decoder. Unfortunately it doesn't reset
2048 the context it uses. This means that if EOF is reached an attempt
2049 is made to pass two EOFs through the context and this causes the
2050 resulting error. This can also cause other problems as well. As is
2051 usual with these problems it takes *ages* to find and the fix is
2052 trivial: move one line.
2053 [Steve Henson, reported by ian@uns.ns.ac.yu (Ivan Nejgebauer) ]
2055 *) Ugly workaround to get s_client and s_server working under Windows. The
2056 old code wouldn't work because it needed to select() on sockets and the
2057 tty (for keypresses and to see if data could be written). Win32 only
2058 supports select() on sockets so we select() with a 1s timeout on the
2059 sockets and then see if any characters are waiting to be read, if none
2060 are present then we retry, we also assume we can always write data to
2061 the tty. This isn't nice because the code then blocks until we've
2062 received a complete line of data and it is effectively polling the
2063 keyboard at 1s intervals: however it's quite a bit better than not
2064 working at all :-) A dedicated Windows application might handle this
2065 with an event loop for example.
2068 *) Enhance RSA_METHOD structure. Now there are two extra methods, rsa_sign
2069 and rsa_verify. When the RSA_FLAGS_SIGN_VER option is set these functions
2070 will be called when RSA_sign() and RSA_verify() are used. This is useful
2071 if rsa_pub_dec() and rsa_priv_enc() equivalents are not available.
2072 For this to work properly RSA_public_decrypt() and RSA_private_encrypt()
2073 should *not* be used: RSA_sign() and RSA_verify() must be used instead.
2074 This necessitated the support of an extra signature type NID_md5_sha1
2075 for SSL signatures and modifications to the SSL library to use it instead
2076 of calling RSA_public_decrypt() and RSA_private_encrypt().
2079 *) Add new -verify -CAfile and -CApath options to the crl program, these
2080 will lookup a CRL issuers certificate and verify the signature in a
2081 similar way to the verify program. Tidy up the crl program so it
2082 no longer accesses structures directly. Make the ASN1 CRL parsing a bit
2083 less strict. It will now permit CRL extensions even if it is not
2084 a V2 CRL: this will allow it to tolerate some broken CRLs.
2087 *) Initialize all non-automatic variables each time one of the openssl
2088 sub-programs is started (this is necessary as they may be started
2089 multiple times from the "OpenSSL>" prompt).
2090 [Lennart Bang, Bodo Moeller]
2092 *) Preliminary compilation option RSA_NULL which disables RSA crypto without
2093 removing all other RSA functionality (this is what NO_RSA does). This
2094 is so (for example) those in the US can disable those operations covered
2095 by the RSA patent while allowing storage and parsing of RSA keys and RSA
2099 *) Non-copying interface to BIO pairs.
2100 (still largely untested)
2103 *) New function ANS1_tag2str() to convert an ASN1 tag to a descriptive
2104 ASCII string. This was handled independently in various places before.
2107 *) New functions UTF8_getc() and UTF8_putc() that parse and generate
2108 UTF8 strings a character at a time.
2111 *) Use client_version from client hello to select the protocol
2112 (s23_srvr.c) and for RSA client key exchange verification
2113 (s3_srvr.c), as required by the SSL 3.0/TLS 1.0 specifications.
2116 *) Add various utility functions to handle SPKACs, these were previously
2117 handled by poking round in the structure internals. Added new function
2118 NETSCAPE_SPKI_print() to print out SPKAC and a new utility 'spkac' to
2119 print, verify and generate SPKACs. Based on an original idea from
2120 Massimiliano Pala <madwolf@comune.modena.it> but extensively modified.
2123 *) RIPEMD160 is operational on all platforms and is back in 'make test'.
2126 *) Allow the config file extension section to be overwritten on the
2127 command line. Based on an original idea from Massimiliano Pala
2128 <madwolf@comune.modena.it>. The new option is called -extensions
2129 and can be applied to ca, req and x509. Also -reqexts to override
2130 the request extensions in req and -crlexts to override the crl extensions
2134 *) Add new feature to the SPKAC handling in ca. Now you can include
2135 the same field multiple times by preceding it by "XXXX." for example:
2138 this is the same syntax as used in the req config file.
2141 *) Allow certificate extensions to be added to certificate requests. These
2142 are specified in a 'req_extensions' option of the req section of the
2143 config file. They can be printed out with the -text option to req but
2144 are otherwise ignored at present.
2147 *) Fix a horrible bug in enc_read() in crypto/evp/bio_enc.c: if the first
2148 data read consists of only the final block it would not decrypted because
2149 EVP_CipherUpdate() would correctly report zero bytes had been decrypted.
2150 A misplaced 'break' also meant the decrypted final block might not be
2151 copied until the next read.
2154 *) Initial support for DH_METHOD. Again based on RSA_METHOD. Also added
2155 a few extra parameters to the DH structure: these will be useful if
2156 for example we want the value of 'q' or implement X9.42 DH.
2159 *) Initial support for DSA_METHOD. This is based on the RSA_METHOD and
2160 provides hooks that allow the default DSA functions or functions on a
2161 "per key" basis to be replaced. This allows hardware acceleration and
2162 hardware key storage to be handled without major modification to the
2163 library. Also added low level modexp hooks and CRYPTO_EX structure and
2164 associated functions.
2167 *) Add a new flag to memory BIOs, BIO_FLAG_MEM_RDONLY. This marks the BIO
2168 as "read only": it can't be written to and the buffer it points to will
2169 not be freed. Reading from a read only BIO is much more efficient than
2170 a normal memory BIO. This was added because there are several times when
2171 an area of memory needs to be read from a BIO. The previous method was
2172 to create a memory BIO and write the data to it, this results in two
2173 copies of the data and an O(n^2) reading algorithm. There is a new
2174 function BIO_new_mem_buf() which creates a read only memory BIO from
2175 an area of memory. Also modified the PKCS#7 routines to use read only
2179 *) Bugfix: ssl23_get_client_hello did not work properly when called in
2180 state SSL23_ST_SR_CLNT_HELLO_B, i.e. when the first 7 bytes of
2181 a SSLv2-compatible client hello for SSLv3 or TLSv1 could be read,
2182 but a retry condition occured while trying to read the rest.
2185 *) The PKCS7_ENC_CONTENT_new() function was setting the content type as
2186 NID_pkcs7_encrypted by default: this was wrong since this should almost
2187 always be NID_pkcs7_data. Also modified the PKCS7_set_type() to handle
2188 the encrypted data type: this is a more sensible place to put it and it
2189 allows the PKCS#12 code to be tidied up that duplicated this
2193 *) Changed obj_dat.pl script so it takes its input and output files on
2194 the command line. This should avoid shell escape redirection problems
2198 *) Initial support for certificate extension requests, these are included
2199 in things like Xenroll certificate requests. Included functions to allow
2200 extensions to be obtained and added.
2203 *) -crlf option to s_client and s_server for sending newlines as
2204 CRLF (as required by many protocols).
2207 Changes between 0.9.3a and 0.9.4 [09 Aug 1999]
2209 *) Install libRSAglue.a when OpenSSL is built with RSAref.
2210 [Ralf S. Engelschall]
2212 *) A few more ``#ifndef NO_FP_API / #endif'' pairs for consistency.
2213 [Andrija Antonijevic <TheAntony2@bigfoot.com>]
2215 *) Fix -startdate and -enddate (which was missing) arguments to 'ca'
2219 *) New function DSA_dup_DH, which duplicates DSA parameters/keys as
2220 DH parameters/keys (q is lost during that conversion, but the resulting
2221 DH parameters contain its length).
2223 For 1024-bit p, DSA_generate_parameters followed by DSA_dup_DH is
2224 much faster than DH_generate_parameters (which creates parameters
2225 where p = 2*q + 1), and also the smaller q makes DH computations
2226 much more efficient (160-bit exponentiation instead of 1024-bit
2227 exponentiation); so this provides a convenient way to support DHE
2228 ciphersuites in SSL/TLS servers (see ssl/ssltest.c). It is of
2229 utter importance to use
2230 SSL_CTX_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
2232 SSL_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
2233 when such DH parameters are used, because otherwise small subgroup
2234 attacks may become possible!
2237 *) Avoid memory leak in i2d_DHparams.
2240 *) Allow the -k option to be used more than once in the enc program:
2241 this allows the same encrypted message to be read by multiple recipients.
2244 *) New function OBJ_obj2txt(buf, buf_len, a, no_name), this converts
2245 an ASN1_OBJECT to a text string. If the "no_name" parameter is set then
2246 it will always use the numerical form of the OID, even if it has a short
2250 *) Added an extra RSA flag: RSA_FLAG_EXT_PKEY. Previously the rsa_mod_exp
2251 method only got called if p,q,dmp1,dmq1,iqmp components were present,
2252 otherwise bn_mod_exp was called. In the case of hardware keys for example
2253 no private key components need be present and it might store extra data
2254 in the RSA structure, which cannot be accessed from bn_mod_exp.
2255 By setting RSA_FLAG_EXT_PKEY rsa_mod_exp will always be called for
2256 private key operations.
2259 *) Added support for SPARC Linux.
2262 *) pem_password_cb function type incompatibly changed from
2263 typedef int pem_password_cb(char *buf, int size, int rwflag);
2265 ....(char *buf, int size, int rwflag, void *userdata);
2266 so that applications can pass data to their callbacks:
2267 The PEM[_ASN1]_{read,write}... functions and macros now take an
2268 additional void * argument, which is just handed through whenever
2269 the password callback is called.
2270 [Damien Miller <dmiller@ilogic.com.au>; tiny changes by Bodo Moeller]
2272 New function SSL_CTX_set_default_passwd_cb_userdata.
2274 Compatibility note: As many C implementations push function arguments
2275 onto the stack in reverse order, the new library version is likely to
2276 interoperate with programs that have been compiled with the old
2277 pem_password_cb definition (PEM_whatever takes some data that
2278 happens to be on the stack as its last argument, and the callback
2279 just ignores this garbage); but there is no guarantee whatsoever that
2282 *) The -DPLATFORM="\"$(PLATFORM)\"" definition and the similar -DCFLAGS=...
2283 (both in crypto/Makefile.ssl for use by crypto/cversion.c) caused
2284 problems not only on Windows, but also on some Unix platforms.
2285 To avoid problematic command lines, these definitions are now in an
2286 auto-generated file crypto/buildinf.h (created by crypto/Makefile.ssl
2287 for standard "make" builds, by util/mk1mf.pl for "mk1mf" builds).
2290 *) MIPS III/IV assembler module is reimplemented.
2293 *) More DES library cleanups: remove references to srand/rand and
2294 delete an unused file.
2297 *) Add support for the the free Netwide assembler (NASM) under Win32,
2298 since not many people have MASM (ml) and it can be hard to obtain.
2299 This is currently experimental but it seems to work OK and pass all
2300 the tests. Check out INSTALL.W32 for info.
2303 *) Fix memory leaks in s3_clnt.c: All non-anonymous SSL3/TLS1 connections
2304 without temporary keys kept an extra copy of the server key,
2305 and connections with temporary keys did not free everything in case
2309 *) New function RSA_check_key and new openssl rsa option -check
2310 for verifying the consistency of RSA keys.
2311 [Ulf Moeller, Bodo Moeller]
2313 *) Various changes to make Win32 compile work:
2314 1. Casts to avoid "loss of data" warnings in p5_crpt2.c
2315 2. Change unsigned int to int in b_dump.c to avoid "signed/unsigned
2316 comparison" warnings.
2317 3. Add sk_<TYPE>_sort to DEF file generator and do make update.
2320 *) Add a debugging option to PKCS#5 v2 key generation function: when
2321 you #define DEBUG_PKCS5V2 passwords, salts, iteration counts and
2322 derived keys are printed to stderr.
2325 *) Copy the flags in ASN1_STRING_dup().
2326 [Roman E. Pavlov <pre@mo.msk.ru>]
2328 *) The x509 application mishandled signing requests containing DSA
2329 keys when the signing key was also DSA and the parameters didn't match.
2331 It was supposed to omit the parameters when they matched the signing key:
2332 the verifying software was then supposed to automatically use the CA's
2333 parameters if they were absent from the end user certificate.
2335 Omitting parameters is no longer recommended. The test was also
2336 the wrong way round! This was probably due to unusual behaviour in
2337 EVP_cmp_parameters() which returns 1 if the parameters match.
2338 This meant that parameters were omitted when they *didn't* match and
2339 the certificate was useless. Certificates signed with 'ca' didn't have
2341 [Steve Henson, reported by Doug Erickson <Doug.Erickson@Part.NET>]
2343 *) Memory leak checking (-DCRYPTO_MDEBUG) had some problems.
2344 The interface is as follows:
2345 Applications can use
2346 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON) aka MemCheck_start(),
2347 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_OFF) aka MemCheck_stop();
2348 "off" is now the default.
2349 The library internally uses
2350 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_DISABLE) aka MemCheck_off(),
2351 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ENABLE) aka MemCheck_on()
2352 to disable memory-checking temporarily.
2354 Some inconsistent states that previously were possible (and were
2355 even the default) are now avoided.
2357 -DCRYPTO_MDEBUG_TIME is new and additionally stores the current time
2358 with each memory chunk allocated; this is occasionally more helpful
2359 than just having a counter.
2361 -DCRYPTO_MDEBUG_THREAD is also new and adds the thread ID.
2363 -DCRYPTO_MDEBUG_ALL enables all of the above, plus any future
2367 *) Introduce "mode" for SSL structures (with defaults in SSL_CTX),
2368 which largely parallels "options", but is for changing API behaviour,
2369 whereas "options" are about protocol behaviour.
2370 Initial "mode" flags are:
2372 SSL_MODE_ENABLE_PARTIAL_WRITE Allow SSL_write to report success when
2373 a single record has been written.
2374 SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER Don't insist that SSL_write
2375 retries use the same buffer location.
2376 (But all of the contents must be
2380 *) Bugfix: SSL_set_mode ignored its parameter, only SSL_CTX_set_mode
2383 *) Fix problems with no-hmac etc.
2384 [Ulf Möller, pointed out by Brian Wellington <bwelling@tislabs.com>]
2386 *) New functions RSA_get_default_method(), RSA_set_method() and
2387 RSA_get_method(). These allows replacement of RSA_METHODs without having
2388 to mess around with the internals of an RSA structure.
2391 *) Fix memory leaks in DSA_do_sign and DSA_is_prime.
2392 Also really enable memory leak checks in openssl.c and in some
2394 [Chad C. Mulligan, Bodo Moeller]
2396 *) Fix a bug in d2i_ASN1_INTEGER() and i2d_ASN1_INTEGER() which can mess
2397 up the length of negative integers. This has now been simplified to just
2398 store the length when it is first determined and use it later, rather
2399 than trying to keep track of where data is copied and updating it to
2401 [Steve Henson, reported by Brien Wheeler
2402 <bwheeler@authentica-security.com>]
2404 *) Add a new function PKCS7_signatureVerify. This allows the verification
2405 of a PKCS#7 signature but with the signing certificate passed to the
2406 function itself. This contrasts with PKCS7_dataVerify which assumes the
2407 certificate is present in the PKCS#7 structure. This isn't always the
2408 case: certificates can be omitted from a PKCS#7 structure and be
2409 distributed by "out of band" means (such as a certificate database).
2412 *) Complete the PEM_* macros with DECLARE_PEM versions to replace the
2413 function prototypes in pem.h, also change util/mkdef.pl to add the
2414 necessary function names.
2417 *) mk1mf.pl (used by Windows builds) did not properly read the
2418 options set by Configure in the top level Makefile, and Configure
2419 was not even able to write more than one option correctly.
2420 Fixed, now "no-idea no-rc5 -DCRYPTO_MDEBUG" etc. works as intended.
2423 *) New functions CONF_load_bio() and CONF_load_fp() to allow a config
2424 file to be loaded from a BIO or FILE pointer. The BIO version will
2425 for example allow memory BIOs to contain config info.
2428 *) New function "CRYPTO_num_locks" that returns CRYPTO_NUM_LOCKS.
2429 Whoever hopes to achieve shared-library compatibility across versions
2430 must use this, not the compile-time macro.
2431 (Exercise 0.9.4: Which is the minimum library version required by
2433 Note: All this applies only to multi-threaded programs, others don't
2437 *) Add missing case to s3_clnt.c state machine -- one of the new SSL tests
2438 through a BIO pair triggered the default case, i.e.
2439 SSLerr(...,SSL_R_UNKNOWN_STATE).
2442 *) New "BIO pair" concept (crypto/bio/bss_bio.c) so that applications
2443 can use the SSL library even if none of the specific BIOs is
2447 *) Fix a bug in i2d_DSAPublicKey() which meant it returned the wrong value
2448 for the encoded length.
2449 [Jeon KyoungHo <khjeon@sds.samsung.co.kr>]
2451 *) Add initial documentation of the X509V3 functions.
2454 *) Add a new pair of functions PEM_write_PKCS8PrivateKey() and
2455 PEM_write_bio_PKCS8PrivateKey() that are equivalent to
2456 PEM_write_PrivateKey() and PEM_write_bio_PrivateKey() but use the more
2457 secure PKCS#8 private key format with a high iteration count.
2460 *) Fix determination of Perl interpreter: A perl or perl5
2461 _directory_ in $PATH was also accepted as the interpreter.
2462 [Ralf S. Engelschall]
2464 *) Fix demos/sign/sign.c: well there wasn't anything strictly speaking
2465 wrong with it but it was very old and did things like calling
2466 PEM_ASN1_read() directly and used MD5 for the hash not to mention some
2470 *) Fix demos/selfsign.c: it used obsolete and deleted functions, changed
2471 to use the new extension code.
2474 *) Implement the PEM_read/PEM_write functions in crypto/pem/pem_all.c
2475 with macros. This should make it easier to change their form, add extra
2476 arguments etc. Fix a few PEM prototypes which didn't have cipher as a
2480 *) Add to configuration table a new entry that can specify an alternative
2481 name for unistd.h (for pre-POSIX systems); we need this for NeXTstep,
2482 according to Mark Crispin <MRC@Panda.COM>.
2486 *) DES CBC did not update the IV. Weird.
2489 des_cbc_encrypt does not update the IV, but des_ncbc_encrypt does.
2490 Changing the behaviour of the former might break existing programs --
2491 where IV updating is needed, des_ncbc_encrypt can be used.
2494 *) When bntest is run from "make test" it drives bc to check its
2495 calculations, as well as internally checking them. If an internal check
2496 fails, it needs to cause bc to give a non-zero result or make test carries
2497 on without noticing the failure. Fixed.
2500 *) DES library cleanups.
2503 *) Add support for PKCS#5 v2.0 PBE algorithms. This will permit PKCS#8 to be
2504 used with any cipher unlike PKCS#5 v1.5 which can at most handle 64 bit
2505 ciphers. NOTE: although the key derivation function has been verified
2506 against some published test vectors it has not been extensively tested
2507 yet. Added a -v2 "cipher" option to pkcs8 application to allow the use
2511 *) Instead of "mkdir -p", which is not fully portable, use new
2512 Perl script "util/mkdir-p.pl".
2515 *) Rewrite the way password based encryption (PBE) is handled. It used to
2516 assume that the ASN1 AlgorithmIdentifier parameter was a PBEParameter
2517 structure. This was true for the PKCS#5 v1.5 and PKCS#12 PBE algorithms
2518 but doesn't apply to PKCS#5 v2.0 where it can be something else. Now
2519 the 'parameter' field of the AlgorithmIdentifier is passed to the
2520 underlying key generation function so it must do its own ASN1 parsing.
2521 This has also changed the EVP_PBE_CipherInit() function which now has a
2522 'parameter' argument instead of literal salt and iteration count values
2523 and the function EVP_PBE_ALGOR_CipherInit() has been deleted.
2526 *) Support for PKCS#5 v1.5 compatible password based encryption algorithms
2527 and PKCS#8 functionality. New 'pkcs8' application linked to openssl.
2528 Needed to change the PEM_STRING_EVP_PKEY value which was just "PRIVATE
2529 KEY" because this clashed with PKCS#8 unencrypted string. Since this
2530 value was just used as a "magic string" and not used directly its
2531 value doesn't matter.
2534 *) Introduce some semblance of const correctness to BN. Shame C doesn't
2538 *) "linux-sparc64" configuration (ultrapenguin).
2539 [Ray Miller <ray.miller@oucs.ox.ac.uk>]
2540 "linux-sparc" configuration.
2541 [Christian Forster <fo@hawo.stw.uni-erlangen.de>]
2543 *) config now generates no-xxx options for missing ciphers.
2546 *) Support the EBCDIC character set (work in progress).
2547 File ebcdic.c not yet included because it has a different license.
2548 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
2550 *) Support BS2000/OSD-POSIX.
2551 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
2553 *) Make callbacks for key generation use void * instead of char *.
2556 *) Make S/MIME samples compile (not yet tested).
2559 *) Additional typesafe stacks.
2562 *) New configuration variants "bsdi-elf-gcc" (BSD/OS 4.x).
2566 Changes between 0.9.3 and 0.9.3a [29 May 1999]
2568 *) New configuration variant "sco5-gcc".
2570 *) Updated some demos.
2571 [Sean O Riordain, Wade Scholine]
2573 *) Add missing BIO_free at exit of pkcs12 application.
2576 *) Fix memory leak in conf.c.
2579 *) Updates for Win32 to assembler version of MD5.
2582 *) Set #! path to perl in apps/der_chop to where we found it
2583 instead of using a fixed path.
2586 *) SHA library changes for irix64-mips4-cc.
2589 *) Improvements for VMS support.
2593 Changes between 0.9.2b and 0.9.3 [24 May 1999]
2595 *) Bignum library bug fix. IRIX 6 passes "make test" now!
2596 This also avoids the problems with SC4.2 and unpatched SC5.
2597 [Andy Polyakov <appro@fy.chalmers.se>]
2599 *) New functions sk_num, sk_value and sk_set to replace the previous macros.
2600 These are required because of the typesafe stack would otherwise break
2601 existing code. If old code used a structure member which used to be STACK
2602 and is now STACK_OF (for example cert in a PKCS7_SIGNED structure) with
2603 sk_num or sk_value it would produce an error because the num, data members
2604 are not present in STACK_OF. Now it just produces a warning. sk_set
2605 replaces the old method of assigning a value to sk_value
2606 (e.g. sk_value(x, i) = y) which the library used in a few cases. Any code
2607 that does this will no longer work (and should use sk_set instead) but
2608 this could be regarded as a "questionable" behaviour anyway.
2611 *) Fix most of the other PKCS#7 bugs. The "experimental" code can now
2612 correctly handle encrypted S/MIME data.
2615 *) Change type of various DES function arguments from des_cblock
2616 (which means, in function argument declarations, pointer to char)
2617 to des_cblock * (meaning pointer to array with 8 char elements),
2618 which allows the compiler to do more typechecking; it was like
2619 that back in SSLeay, but with lots of ugly casts.
2621 Introduce new type const_des_cblock.
2624 *) Reorganise the PKCS#7 library and get rid of some of the more obvious
2625 problems: find RecipientInfo structure that matches recipient certificate
2626 and initialise the ASN1 structures properly based on passed cipher.
2629 *) Belatedly make the BN tests actually check the results.
2632 *) Fix the encoding and decoding of negative ASN1 INTEGERS and conversion
2633 to and from BNs: it was completely broken. New compilation option
2634 NEG_PUBKEY_BUG to allow for some broken certificates that encode public
2635 key elements as negative integers.
2638 *) Reorganize and speed up MD5.
2639 [Andy Polyakov <appro@fy.chalmers.se>]
2642 [Richard Levitte <richard@levitte.org>]
2644 *) New option -out to asn1parse to allow the parsed structure to be
2645 output to a file. This is most useful when combined with the -strparse
2646 option to examine the output of things like OCTET STRINGS.
2649 *) Make SSL library a little more fool-proof by not requiring any longer
2650 that SSL_set_{accept,connect}_state be called before
2651 SSL_{accept,connect} may be used (SSL_set_..._state is omitted
2652 in many applications because usually everything *appeared* to work as
2653 intended anyway -- now it really works as intended).
2656 *) Move openssl.cnf out of lib/.
2659 *) Fix various things to let OpenSSL even pass ``egcc -pipe -O2 -Wall
2660 -Wshadow -Wpointer-arith -Wcast-align -Wmissing-prototypes
2661 -Wmissing-declarations -Wnested-externs -Winline'' with EGCS 1.1.2+
2662 [Ralf S. Engelschall]
2664 *) Various fixes to the EVP and PKCS#7 code. It may now be able to
2665 handle PKCS#7 enveloped data properly.
2666 [Sebastian Akerman <sak@parallelconsulting.com>, modified by Steve]
2668 *) Create a duplicate of the SSL_CTX's CERT in SSL_new instead of
2669 copying pointers. The cert_st handling is changed by this in
2670 various ways (and thus what used to be known as ctx->default_cert
2671 is now called ctx->cert, since we don't resort to s->ctx->[default_]cert
2672 any longer when s->cert does not give us what we need).
2673 ssl_cert_instantiate becomes obsolete by this change.
2674 As soon as we've got the new code right (possibly it already is?),
2675 we have solved a couple of bugs of the earlier code where s->cert
2676 was used as if it could not have been shared with other SSL structures.
2678 Note that using the SSL API in certain dirty ways now will result
2679 in different behaviour than observed with earlier library versions:
2680 Changing settings for an SSL_CTX *ctx after having done s = SSL_new(ctx)
2681 does not influence s as it used to.
2683 In order to clean up things more thoroughly, inside SSL_SESSION
2684 we don't use CERT any longer, but a new structure SESS_CERT
2685 that holds per-session data (if available); currently, this is
2686 the peer's certificate chain and, for clients, the server's certificate
2687 and temporary key. CERT holds only those values that can have
2688 meaningful defaults in an SSL_CTX.
2691 *) New function X509V3_EXT_i2d() to create an X509_EXTENSION structure
2692 from the internal representation. Various PKCS#7 fixes: remove some
2693 evil casts and set the enc_dig_alg field properly based on the signing
2697 *) Allow PKCS#12 password to be set from the command line or the
2698 environment. Let 'ca' get its config file name from the environment
2699 variables "OPENSSL_CONF" or "SSLEAY_CONF" (for consistency with 'req'
2703 *) Allow certificate policies extension to use an IA5STRING for the
2704 organization field. This is contrary to the PKIX definition but
2705 VeriSign uses it and IE5 only recognises this form. Document 'x509'
2709 *) Add PEDANTIC compiler flag to allow compilation with gcc -pedantic,
2710 without disallowing inline assembler and the like for non-pedantic builds.
2713 *) Support Borland C++ builder.
2714 [Janez Jere <jj@void.si>, modified by Ulf Möller]
2719 *) SHA-1 cleanups and performance enhancements.
2720 [Andy Polyakov <appro@fy.chalmers.se>]
2722 *) Sparc v8plus assembler for the bignum library.
2723 [Andy Polyakov <appro@fy.chalmers.se>]
2725 *) Accept any -xxx and +xxx compiler options in Configure.
2728 *) Update HPUX configuration.
2731 *) Add missing sk_<type>_unshift() function to safestack.h
2732 [Ralf S. Engelschall]
2734 *) New function SSL_CTX_use_certificate_chain_file that sets the
2735 "extra_cert"s in addition to the certificate. (This makes sense
2736 only for "PEM" format files, as chains as a whole are not
2740 *) Support verify_depth from the SSL API.
2741 x509_vfy.c had what can be considered an off-by-one-error:
2742 Its depth (which was not part of the external interface)
2743 was actually counting the number of certificates in a chain;
2744 now it really counts the depth.
2747 *) Bugfix in crypto/x509/x509_cmp.c: The SSLerr macro was used
2748 instead of X509err, which often resulted in confusing error
2749 messages since the error codes are not globally unique
2750 (e.g. an alleged error in ssl3_accept when a certificate
2751 didn't match the private key).
2753 *) New function SSL_CTX_set_session_id_context that allows to set a default
2754 value (so that you don't need SSL_set_session_id_context for each
2755 connection using the SSL_CTX).
2758 *) OAEP decoding bug fix.
2761 *) Support INSTALL_PREFIX for package builders, as proposed by
2765 *) New Configure options "threads" and "no-threads". For systems
2766 where the proper compiler options are known (currently Solaris
2767 and Linux), "threads" is the default.
2770 *) New script util/mklink.pl as a faster substitute for util/mklink.sh.
2773 *) Install various scripts to $(OPENSSLDIR)/misc, not to
2774 $(INSTALLTOP)/bin -- they shouldn't clutter directories
2775 such as /usr/local/bin.
2778 *) "make linux-shared" to build shared libraries.
2779 [Niels Poppe <niels@netbox.org>]
2781 *) New Configure option no-<cipher> (rsa, idea, rc5, ...).
2784 *) Add the PKCS#12 API documentation to openssl.txt. Preliminary support for
2785 extension adding in x509 utility.
2788 *) Remove NOPROTO sections and error code comments.
2791 *) Partial rewrite of the DEF file generator to now parse the ANSI
2795 *) New Configure options --prefix=DIR and --openssldir=DIR.
2798 *) Complete rewrite of the error code script(s). It is all now handled
2799 by one script at the top level which handles error code gathering,
2800 header rewriting and C source file generation. It should be much better
2801 than the old method: it now uses a modified version of Ulf's parser to
2802 read the ANSI prototypes in all header files (thus the old K&R definitions
2803 aren't needed for error creation any more) and do a better job of
2804 translating function codes into names. The old 'ASN1 error code imbedded
2805 in a comment' is no longer necessary and it doesn't use .err files which
2806 have now been deleted. Also the error code call doesn't have to appear all
2807 on one line (which resulted in some large lines...).
2810 *) Change #include filenames from <foo.h> to <openssl/foo.h>.
2813 *) Change behaviour of ssl2_read when facing length-0 packets: Don't return
2814 0 (which usually indicates a closed connection), but continue reading.
2817 *) Fix some race conditions.
2820 *) Add support for CRL distribution points extension. Add Certificate
2821 Policies and CRL distribution points documentation.
2824 *) Move the autogenerated header file parts to crypto/opensslconf.h.
2827 *) Fix new 56-bit DES export ciphersuites: they were using 7 bytes instead of
2828 8 of keying material. Merlin has also confirmed interop with this fix
2829 between OpenSSL and Baltimore C/SSL 2.0 and J/SSL 2.0.
2830 [Merlin Hughes <merlin@baltimore.ie>]
2832 *) Fix lots of warnings.
2833 [Richard Levitte <levitte@stacken.kth.se>]
2835 *) In add_cert_dir() in crypto/x509/by_dir.c, break out of the loop if
2836 the directory spec didn't end with a LIST_SEPARATOR_CHAR.
2837 [Richard Levitte <levitte@stacken.kth.se>]
2839 *) Fix problems with sizeof(long) == 8.
2840 [Andy Polyakov <appro@fy.chalmers.se>]
2842 *) Change functions to ANSI C.
2845 *) Fix typos in error codes.
2846 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>, Ulf Möller]
2848 *) Remove defunct assembler files from Configure.
2851 *) SPARC v8 assembler BIGNUM implementation.
2852 [Andy Polyakov <appro@fy.chalmers.se>]
2854 *) Support for Certificate Policies extension: both print and set.
2855 Various additions to support the r2i method this uses.
2858 *) A lot of constification, and fix a bug in X509_NAME_oneline() that could
2859 return a const string when you are expecting an allocated buffer.
2862 *) Add support for ASN1 types UTF8String and VISIBLESTRING, also the CHOICE
2863 types DirectoryString and DisplayText.
2866 *) Add code to allow r2i extensions to access the configuration database,
2867 add an LHASH database driver and add several ctx helper functions.
2870 *) Fix an evil bug in bn_expand2() which caused various BN functions to
2871 fail when they extended the size of a BIGNUM.
2874 *) Various utility functions to handle SXNet extension. Modify mkdef.pl to
2875 support typesafe stack.
2878 *) Fix typo in SSL_[gs]et_options().
2879 [Nils Frostberg <nils@medcom.se>]
2881 *) Delete various functions and files that belonged to the (now obsolete)
2882 old X509V3 handling code.
2885 *) New Configure option "rsaref".
2888 *) Don't auto-generate pem.h.
2891 *) Introduce type-safe ASN.1 SETs.
2894 *) Convert various additional casted stacks to type-safe STACK_OF() variants.
2895 [Ben Laurie, Ralf S. Engelschall, Steve Henson]
2897 *) Introduce type-safe STACKs. This will almost certainly break lots of code
2898 that links with OpenSSL (well at least cause lots of warnings), but fear
2899 not: the conversion is trivial, and it eliminates loads of evil casts. A
2900 few STACKed things have been converted already. Feel free to convert more.
2901 In the fullness of time, I'll do away with the STACK type altogether.
2904 *) Add `openssl ca -revoke <certfile>' facility which revokes a certificate
2905 specified in <certfile> by updating the entry in the index.txt file.
2906 This way one no longer has to edit the index.txt file manually for
2907 revoking a certificate. The -revoke option does the gory details now.
2908 [Massimiliano Pala <madwolf@openca.org>, Ralf S. Engelschall]
2910 *) Fix `openssl crl -noout -text' combination where `-noout' killed the
2911 `-text' option at all and this way the `-noout -text' combination was
2912 inconsistent in `openssl crl' with the friends in `openssl x509|rsa|dsa'.
2913 [Ralf S. Engelschall]
2915 *) Make sure a corresponding plain text error message exists for the
2916 X509_V_ERR_CERT_REVOKED/23 error number which can occur when a
2917 verify callback function determined that a certificate was revoked.
2918 [Ralf S. Engelschall]
2920 *) Bugfix: In test/testenc, don't test "openssl <cipher>" for
2921 ciphers that were excluded, e.g. by -DNO_IDEA. Also, test
2922 all available cipers including rc5, which was forgotten until now.
2923 In order to let the testing shell script know which algorithms
2924 are available, a new (up to now undocumented) command
2925 "openssl list-cipher-commands" is used.
2928 *) Bugfix: s_client occasionally would sleep in select() when
2929 it should have checked SSL_pending() first.
2932 *) New functions DSA_do_sign and DSA_do_verify to provide access to
2933 the raw DSA values prior to ASN.1 encoding.
2936 *) Tweaks to Configure
2937 [Niels Poppe <niels@netbox.org>]
2939 *) Add support for PKCS#5 v2.0 ASN1 PBES2 structures. No other support,
2943 *) New variables $(RANLIB) and $(PERL) in the Makefiles.
2946 *) New config option to avoid instructions that are illegal on the 80386.
2947 The default code is faster, but requires at least a 486.
2950 *) Got rid of old SSL2_CLIENT_VERSION (inconsistently used) and
2951 SSL2_SERVER_VERSION (not used at all) macros, which are now the
2952 same as SSL2_VERSION anyway.
2955 *) New "-showcerts" option for s_client.
2958 *) Still more PKCS#12 integration. Add pkcs12 application to openssl
2959 application. Various cleanups and fixes.
2962 *) More PKCS#12 integration. Add new pkcs12 directory with Makefile.ssl and
2963 modify error routines to work internally. Add error codes and PBE init
2964 to library startup routines.
2967 *) Further PKCS#12 integration. Added password based encryption, PKCS#8 and
2968 packing functions to asn1 and evp. Changed function names and error
2969 codes along the way.
2972 *) PKCS12 integration: and so it begins... First of several patches to
2973 slowly integrate PKCS#12 functionality into OpenSSL. Add PKCS#12
2974 objects to objects.h
2977 *) Add a new 'indent' option to some X509V3 extension code. Initial ASN1
2978 and display support for Thawte strong extranet extension.
2981 *) Add LinuxPPC support.
2982 [Jeff Dubrule <igor@pobox.org>]
2984 *) Get rid of redundant BN file bn_mulw.c, and rename bn_div64 to
2985 bn_div_words in alpha.s.
2986 [Hannes Reinecke <H.Reinecke@hw.ac.uk> and Ben Laurie]
2988 *) Make sure the RSA OAEP test is skipped under -DRSAref because
2989 OAEP isn't supported when OpenSSL is built with RSAref.
2990 [Ulf Moeller <ulf@fitug.de>]
2992 *) Move definitions of IS_SET/IS_SEQUENCE inside crypto/asn1/asn1.h
2993 so they no longer are missing under -DNOPROTO.
2994 [Soren S. Jorvang <soren@t.dk>]
2997 Changes between 0.9.1c and 0.9.2b [22 Mar 1999]
2999 *) Make SSL_get_peer_cert_chain() work in servers. Unfortunately, it still
3000 doesn't work when the session is reused. Coming soon!
3003 *) Fix a security hole, that allows sessions to be reused in the wrong
3004 context thus bypassing client cert protection! All software that uses
3005 client certs and session caches in multiple contexts NEEDS PATCHING to
3006 allow session reuse! A fuller solution is in the works.
3007 [Ben Laurie, problem pointed out by Holger Reif, Bodo Moeller (and ???)]
3009 *) Some more source tree cleanups (removed obsolete files
3010 crypto/bf/asm/bf586.pl, test/test.txt and crypto/sha/asm/f.s; changed
3011 permission on "config" script to be executable) and a fix for the INSTALL
3013 [Ulf Moeller <ulf@fitug.de>]
3015 *) Remove some legacy and erroneous uses of malloc, free instead of
3017 [Lennart Bang <lob@netstream.se>, with minor changes by Steve]
3019 *) Make rsa_oaep_test return non-zero on error.
3020 [Ulf Moeller <ulf@fitug.de>]
3022 *) Add support for native Solaris shared libraries. Configure
3023 solaris-sparc-sc4-pic, make, then run shlib/solaris-sc4.sh. It'd be nice
3024 if someone would make that last step automatic.
3025 [Matthias Loepfe <Matthias.Loepfe@AdNovum.CH>]
3027 *) ctx_size was not built with the right compiler during "make links". Fixed.
3030 *) Change the meaning of 'ALL' in the cipher list. It now means "everything
3031 except NULL ciphers". This means the default cipher list will no longer
3032 enable NULL ciphers. They need to be specifically enabled e.g. with
3033 the string "DEFAULT:eNULL".
3036 *) Fix to RSA private encryption routines: if p < q then it would
3037 occasionally produce an invalid result. This will only happen with
3038 externally generated keys because OpenSSL (and SSLeay) ensure p > q.
3041 *) Be less restrictive and allow also `perl util/perlpath.pl
3042 /path/to/bin/perl' in addition to `perl util/perlpath.pl /path/to/bin',
3043 because this way one can also use an interpreter named `perl5' (which is
3044 usually the name of Perl 5.xxx on platforms where an Perl 4.x is still
3045 installed as `perl').
3046 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
3048 *) Let util/clean-depend.pl work also with older Perl 5.00x versions.
3049 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
3051 *) Fix Makefile.org so CC,CFLAG etc are passed to 'make links' add
3052 advapi32.lib to Win32 build and change the pem test comparision
3053 to fc.exe (thanks to Ulrich Kroener <kroneru@yahoo.com> for the
3054 suggestion). Fix misplaced ASNI prototypes and declarations in evp.h
3055 and crypto/des/ede_cbcm_enc.c.
3058 *) DES quad checksum was broken on big-endian architectures. Fixed.
3061 *) Comment out two functions in bio.h that aren't implemented. Fix up the
3062 Win32 test batch file so it (might) work again. The Win32 test batch file
3063 is horrible: I feel ill....
3066 *) Move various #ifdefs around so NO_SYSLOG, NO_DIRENT etc are now selected
3067 in e_os.h. Audit of header files to check ANSI and non ANSI
3068 sections: 10 functions were absent from non ANSI section and not exported
3069 from Windows DLLs. Fixed up libeay.num for new functions.
3072 *) Make `openssl version' output lines consistent.
3073 [Ralf S. Engelschall]
3075 *) Fix Win32 symbol export lists for BIO functions: Added
3076 BIO_get_ex_new_index, BIO_get_ex_num, BIO_get_ex_data and BIO_set_ex_data
3077 to ms/libeay{16,32}.def.
3078 [Ralf S. Engelschall]
3080 *) Second round of fixing the OpenSSL perl/ stuff. It now at least compiled
3081 fine under Unix and passes some trivial tests I've now added. But the
3082 whole stuff is horribly incomplete, so a README.1ST with a disclaimer was
3083 added to make sure no one expects that this stuff really works in the
3084 OpenSSL 0.9.2 release. Additionally I've started to clean the XS sources
3085 up and fixed a few little bugs and inconsistencies in OpenSSL.{pm,xs} and
3087 [Ralf S. Engelschall]
3089 *) Fix the generation of two part addresses in perl.
3090 [Kenji Miyake <kenji@miyake.org>, integrated by Ben Laurie]
3092 *) Add config entry for Linux on MIPS.
3093 [John Tobey <jtobey@channel1.com>]
3095 *) Make links whenever Configure is run, unless we are on Windoze.
3098 *) Permit extensions to be added to CRLs using crl_section in openssl.cnf.
3099 Currently only issuerAltName and AuthorityKeyIdentifier make any sense
3103 *) Add a useful kludge to allow package maintainers to specify compiler and
3104 other platforms details on the command line without having to patch the
3105 Configure script everytime: One now can use ``perl Configure
3106 <id>:<details>'', i.e. platform ids are allowed to have details appended
3107 to them (seperated by colons). This is treated as there would be a static
3108 pre-configured entry in Configure's %table under key <id> with value
3109 <details> and ``perl Configure <id>'' is called. So, when you want to
3110 perform a quick test-compile under FreeBSD 3.1 with pgcc and without
3111 assembler stuff you can use ``perl Configure "FreeBSD-elf:pgcc:-O6:::"''
3112 now, which overrides the FreeBSD-elf entry on-the-fly.
3113 [Ralf S. Engelschall]
3115 *) Disable new TLS1 ciphersuites by default: they aren't official yet.
3118 *) Allow DSO flags like -fpic, -fPIC, -KPIC etc. to be specified
3119 on the `perl Configure ...' command line. This way one can compile
3120 OpenSSL libraries with Position Independent Code (PIC) which is needed
3121 for linking it into DSOs.
3122 [Ralf S. Engelschall]
3124 *) Remarkably, export ciphers were totally broken and no-one had noticed!
3128 *) Cleaned up the LICENSE document: The official contact for any license
3129 questions now is the OpenSSL core team under openssl-core@openssl.org.
3130 And add a paragraph about the dual-license situation to make sure people
3131 recognize that _BOTH_ the OpenSSL license _AND_ the SSLeay license apply
3132 to the OpenSSL toolkit.
3133 [Ralf S. Engelschall]
3135 *) General source tree makefile cleanups: Made `making xxx in yyy...'
3136 display consistent in the source tree and replaced `/bin/rm' by `rm'.
3137 Additonally cleaned up the `make links' target: Remove unnecessary
3138 semicolons, subsequent redundant removes, inline point.sh into mklink.sh
3139 to speed processing and no longer clutter the display with confusing
3140 stuff. Instead only the actually done links are displayed.
3141 [Ralf S. Engelschall]
3143 *) Permit null encryption ciphersuites, used for authentication only. It used
3144 to be necessary to set the preprocessor define SSL_ALLOW_ENULL to do this.
3145 It is now necessary to set SSL_FORBID_ENULL to prevent the use of null
3149 *) Add a bunch of fixes to the PKCS#7 stuff. It used to sometimes reorder
3150 signed attributes when verifying signatures (this would break them),
3151 the detached data encoding was wrong and public keys obtained using
3152 X509_get_pubkey() weren't freed.
3155 *) Add text documentation for the BUFFER functions. Also added a work around
3156 to a Win95 console bug. This was triggered by the password read stuff: the
3157 last character typed gets carried over to the next fread(). If you were
3158 generating a new cert request using 'req' for example then the last
3159 character of the passphrase would be CR which would then enter the first
3163 *) Added the new `Includes OpenSSL Cryptography Software' button as
3164 doc/openssl_button.{gif,html} which is similar in style to the old SSLeay
3165 button and can be used by applications based on OpenSSL to show the
3166 relationship to the OpenSSL project.
3167 [Ralf S. Engelschall]
3169 *) Remove confusing variables in function signatures in files
3170 ssl/ssl_lib.c and ssl/ssl.h.
3171 [Lennart Bong <lob@kulthea.stacken.kth.se>]
3173 *) Don't install bss_file.c under PREFIX/include/
3174 [Lennart Bong <lob@kulthea.stacken.kth.se>]
3176 *) Get the Win32 compile working again. Modify mkdef.pl so it can handle
3177 functions that return function pointers and has support for NT specific
3178 stuff. Fix mk1mf.pl and VC-32.pl to support NT differences also. Various
3179 #ifdef WIN32 and WINNTs sprinkled about the place and some changes from
3180 unsigned to signed types: this was killing the Win32 compile.
3183 *) Add new certificate file to stack functions,
3184 SSL_add_dir_cert_subjects_to_stack() and
3185 SSL_add_file_cert_subjects_to_stack(). These largely supplant
3186 SSL_load_client_CA_file(), and can be used to add multiple certs easily
3187 to a stack (usually this is then handed to SSL_CTX_set_client_CA_list()).
3188 This means that Apache-SSL and similar packages don't have to mess around
3189 to add as many CAs as they want to the preferred list.
3192 *) Experiment with doxygen documentation. Currently only partially applied to
3194 See http://www.stack.nl/~dimitri/doxygen/index.html, and run doxygen with
3195 openssl.doxy as the configuration file.
3198 *) Get rid of remaining C++-style comments which strict C compilers hate.
3199 [Ralf S. Engelschall, pointed out by Carlos Amengual]
3201 *) Changed BN_RECURSION in bn_mont.c to BN_RECURSION_MONT so it is not
3202 compiled in by default: it has problems with large keys.
3205 *) Add a bunch of SSL_xxx() functions for configuring the temporary RSA and
3206 DH private keys and/or callback functions which directly correspond to
3207 their SSL_CTX_xxx() counterparts but work on a per-connection basis. This
3208 is needed for applications which have to configure certificates on a
3209 per-connection basis (e.g. Apache+mod_ssl) instead of a per-context basis
3211 For the RSA certificate situation is makes no difference, but
3212 for the DSA certificate situation this fixes the "no shared cipher"
3213 problem where the OpenSSL cipher selection procedure failed because the
3214 temporary keys were not overtaken from the context and the API provided
3215 no way to reconfigure them.
3216 The new functions now let applications reconfigure the stuff and they
3217 are in detail: SSL_need_tmp_RSA, SSL_set_tmp_rsa, SSL_set_tmp_dh,
3218 SSL_set_tmp_rsa_callback and SSL_set_tmp_dh_callback. Additionally a new
3219 non-public-API function ssl_cert_instantiate() is used as a helper
3220 function and also to reduce code redundancy inside ssl_rsa.c.
3221 [Ralf S. Engelschall]
3223 *) Move s_server -dcert and -dkey options out of the undocumented feature
3224 area because they are useful for the DSA situation and should be
3225 recognized by the users.
3226 [Ralf S. Engelschall]
3228 *) Fix the cipher decision scheme for export ciphers: the export bits are
3229 *not* within SSL_MKEY_MASK or SSL_AUTH_MASK, they are within
3230 SSL_EXP_MASK. So, the original variable has to be used instead of the
3231 already masked variable.
3232 [Richard Levitte <levitte@stacken.kth.se>]
3234 *) Fix 'port' variable from `int' to `unsigned int' in crypto/bio/b_sock.c
3235 [Richard Levitte <levitte@stacken.kth.se>]
3237 *) Change type of another md_len variable in pk7_doit.c:PKCS7_dataFinal()
3238 from `int' to `unsigned int' because it's a length and initialized by
3239 EVP_DigestFinal() which expects an `unsigned int *'.
3240 [Richard Levitte <levitte@stacken.kth.se>]
3242 *) Don't hard-code path to Perl interpreter on shebang line of Configure
3243 script. Instead use the usual Shell->Perl transition trick.
3244 [Ralf S. Engelschall]
3246 *) Make `openssl x509 -noout -modulus' functional also for DSA certificates
3247 (in addition to RSA certificates) to match the behaviour of `openssl dsa
3248 -noout -modulus' as it's already the case for `openssl rsa -noout
3249 -modulus'. For RSA the -modulus is the real "modulus" while for DSA
3250 currently the public key is printed (a decision which was already done by
3251 `openssl dsa -modulus' in the past) which serves a similar purpose.
3252 Additionally the NO_RSA no longer completely removes the whole -modulus
3253 option; it now only avoids using the RSA stuff. Same applies to NO_DSA
3255 [Ralf S. Engelschall]
3257 *) Add Arne Ansper's reliable BIO - this is an encrypted, block-digested
3258 BIO. See the source (crypto/evp/bio_ok.c) for more info.
3259 [Arne Ansper <arne@ats.cyber.ee>]
3261 *) Dump the old yucky req code that tried (and failed) to allow raw OIDs
3262 to be added. Now both 'req' and 'ca' can use new objects defined in the
3266 *) Add cool BIO that does syslog (or event log on NT).
3267 [Arne Ansper <arne@ats.cyber.ee>, integrated by Ben Laurie]
3269 *) Add support for new TLS ciphersuites, TLS_RSA_EXPORT56_WITH_RC4_56_MD5,
3270 TLS_RSA_EXPORT56_WITH_RC2_CBC_56_MD5 and
3271 TLS_RSA_EXPORT56_WITH_DES_CBC_SHA, as specified in "56-bit Export Cipher
3272 Suites For TLS", draft-ietf-tls-56-bit-ciphersuites-00.txt.
3275 *) Add preliminary config info for new extension code.
3278 *) Make RSA_NO_PADDING really use no padding.
3279 [Ulf Moeller <ulf@fitug.de>]
3281 *) Generate errors when private/public key check is done.
3284 *) Overhaul for 'crl' utility. New function X509_CRL_print. Partial support
3285 for some CRL extensions and new objects added.
3288 *) Really fix the ASN1 IMPLICIT bug this time... Partial support for private
3289 key usage extension and fuller support for authority key id.
3292 *) Add OAEP encryption for the OpenSSL crypto library. OAEP is the improved
3293 padding method for RSA, which is recommended for new applications in PKCS
3294 #1 v2.0 (RFC 2437, October 1998).
3295 OAEP (Optimal Asymmetric Encryption Padding) has better theoretical
3296 foundations than the ad-hoc padding used in PKCS #1 v1.5. It is secure
3297 against Bleichbacher's attack on RSA.
3298 [Ulf Moeller <ulf@fitug.de>, reformatted, corrected and integrated by
3301 *) Updates to the new SSL compression code
3302 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
3304 *) Fix so that the version number in the master secret, when passed
3305 via RSA, checks that if TLS was proposed, but we roll back to SSLv3
3306 (because the server will not accept higher), that the version number
3307 is 0x03,0x01, not 0x03,0x00
3308 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
3310 *) Run extensive memory leak checks on SSL apps. Fixed *lots* of memory
3311 leaks in ssl/ relating to new X509_get_pubkey() behaviour. Also fixes
3312 in apps/ and an unrelated leak in crypto/dsa/dsa_vrf.c
3315 *) Support for RAW extensions where an arbitrary extension can be
3316 created by including its DER encoding. See apps/openssl.cnf for
3320 *) Make sure latest Perl versions don't interpret some generated C array
3321 code as Perl array code in the crypto/err/err_genc.pl script.
3322 [Lars Weber <3weber@informatik.uni-hamburg.de>]
3324 *) Modify ms/do_ms.bat to not generate assembly language makefiles since
3325 not many people have the assembler. Various Win32 compilation fixes and
3326 update to the INSTALL.W32 file with (hopefully) more accurate Win32
3330 *) Modify configure script 'Configure' to automatically create crypto/date.h
3331 file under Win32 and also build pem.h from pem.org. New script
3332 util/mkfiles.pl to create the MINFO file on environments that can't do a
3333 'make files': perl util/mkfiles.pl >MINFO should work.
3336 *) Major rework of DES function declarations, in the pursuit of correctness
3337 and purity. As a result, many evil casts evaporated, and some weirdness,
3338 too. You may find this causes warnings in your code. Zapping your evil
3339 casts will probably fix them. Mostly.
3342 *) Fix for a typo in asn1.h. Bug fix to object creation script
3343 obj_dat.pl. It considered a zero in an object definition to mean
3344 "end of object": none of the objects in objects.h have any zeros
3345 so it wasn't spotted.
3346 [Steve Henson, reported by Erwann ABALEA <eabalea@certplus.com>]
3348 *) Add support for Triple DES Cipher Block Chaining with Output Feedback
3349 Masking (CBCM). In the absence of test vectors, the best I have been able
3350 to do is check that the decrypt undoes the encrypt, so far. Send me test
3351 vectors if you have them.
3354 *) Correct calculation of key length for export ciphers (too much space was
3355 allocated for null ciphers). This has not been tested!
3358 *) Modifications to the mkdef.pl for Win32 DEF file creation. The usage
3359 message is now correct (it understands "crypto" and "ssl" on its
3360 command line). There is also now an "update" option. This will update
3361 the util/ssleay.num and util/libeay.num files with any new functions.
3363 perl util/mkdef.pl crypto ssl update
3364 it will update them.
3367 *) Overhauled the Perl interface (perl/*):
3368 - ported BN stuff to OpenSSL's different BN library
3369 - made the perl/ source tree CVS-aware
3370 - renamed the package from SSLeay to OpenSSL (the files still contain
3371 their history because I've copied them in the repository)
3372 - removed obsolete files (the test scripts will be replaced
3373 by better Test::Harness variants in the future)
3374 [Ralf S. Engelschall]
3376 *) First cut for a very conservative source tree cleanup:
3377 1. merge various obsolete readme texts into doc/ssleay.txt
3378 where we collect the old documents and readme texts.
3379 2. remove the first part of files where I'm already sure that we no
3380 longer need them because of three reasons: either they are just temporary
3381 files which were left by Eric or they are preserved original files where
3382 I've verified that the diff is also available in the CVS via "cvs diff
3383 -rSSLeay_0_8_1b" or they were renamed (as it was definitely the case for
3384 the crypto/md/ stuff).
3385 [Ralf S. Engelschall]
3387 *) More extension code. Incomplete support for subject and issuer alt
3388 name, issuer and authority key id. Change the i2v function parameters
3389 and add an extra 'crl' parameter in the X509V3_CTX structure: guess
3390 what that's for :-) Fix to ASN1 macro which messed up
3391 IMPLICIT tag and add f_enum.c which adds a2i, i2a for ENUMERATED.
3394 *) Preliminary support for ENUMERATED type. This is largely copied from the
3398 *) Add new function, EVP_MD_CTX_copy() to replace frequent use of memcpy.
3399 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
3401 *) Make sure `make rehash' target really finds the `openssl' program.
3402 [Ralf S. Engelschall, Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
3404 *) Squeeze another 7% of speed out of MD5 assembler, at least on a P2. I'd
3405 like to hear about it if this slows down other processors.
3408 *) Add CygWin32 platform information to Configure script.
3409 [Alan Batie <batie@aahz.jf.intel.com>]
3411 *) Fixed ms/32all.bat script: `no_asm' -> `no-asm'
3412 [Rainer W. Gerling <gerling@mpg-gv.mpg.de>]
3414 *) New program nseq to manipulate netscape certificate sequences
3417 *) Modify crl2pkcs7 so it supports multiple -certfile arguments. Fix a
3421 *) Fixes to BN code. Previously the default was to define BN_RECURSION
3422 but the BN code had some problems that would cause failures when
3423 doing certificate verification and some other functions.
3424 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
3426 *) Add ASN1 and PEM code to support netscape certificate sequences.
3429 *) Add ASN1 and PEM code to support netscape certificate sequences.
3432 *) Add several PKIX and private extended key usage OIDs.
3435 *) Modify the 'ca' program to handle the new extension code. Modify
3436 openssl.cnf for new extension format, add comments.
3439 *) More X509 V3 changes. Fix typo in v3_bitstr.c. Add support to 'req'
3440 and add a sample to openssl.cnf so req -x509 now adds appropriate
3444 *) Continued X509 V3 changes. Add to other makefiles, integrate with the
3445 error code, add initial support to X509_print() and x509 application.
3448 *) Takes a deep breath and start addding X509 V3 extension support code. Add
3449 files in crypto/x509v3. Move original stuff to crypto/x509v3/old. All this
3450 stuff is currently isolated and isn't even compiled yet.
3453 *) Continuing patches for GeneralizedTime. Fix up certificate and CRL
3454 ASN1 to use ASN1_TIME and modify print routines to use ASN1_TIME_print.
3455 Removed the versions check from X509 routines when loading extensions:
3456 this allows certain broken certificates that don't set the version
3457 properly to be processed.
3460 *) Deal with irritating shit to do with dependencies, in YAAHW (Yet Another
3461 Ad Hoc Way) - Makefile.ssls now all contain local dependencies, which
3462 can still be regenerated with "make depend".
3465 *) Spelling mistake in C version of CAST-128.
3466 [Ben Laurie, reported by Jeremy Hylton <jeremy@cnri.reston.va.us>]
3468 *) Changes to the error generation code. The perl script err-code.pl
3469 now reads in the old error codes and retains the old numbers, only
3470 adding new ones if necessary. It also only changes the .err files if new
3471 codes are added. The makefiles have been modified to only insert errors
3472 when needed (to avoid needlessly modifying header files). This is done
3473 by only inserting errors if the .err file is newer than the auto generated
3474 C file. To rebuild all the error codes from scratch (the old behaviour)
3475 either modify crypto/Makefile.ssl to pass the -regen flag to err_code.pl
3476 or delete all the .err files.
3479 *) CAST-128 was incorrectly implemented for short keys. The C version has
3480 been fixed, but is untested. The assembler versions are also fixed, but
3481 new assembler HAS NOT BEEN GENERATED FOR WIN32 - the Makefile needs fixing
3482 to regenerate it if needed.
3483 [Ben Laurie, reported (with fix for C version) by Jun-ichiro itojun
3484 Hagino <itojun@kame.net>]
3486 *) File was opened incorrectly in randfile.c.
3487 [Ulf Möller <ulf@fitug.de>]
3489 *) Beginning of support for GeneralizedTime. d2i, i2d, check and print
3490 functions. Also ASN1_TIME suite which is a CHOICE of UTCTime or
3491 GeneralizedTime. ASN1_TIME is the proper type used in certificates et
3492 al: it's just almost always a UTCTime. Note this patch adds new error
3493 codes so do a "make errors" if there are problems.
3496 *) Correct Linux 1 recognition in config.
3497 [Ulf Möller <ulf@fitug.de>]
3499 *) Remove pointless MD5 hash when using DSA keys in ca.
3500 [Anonymous <nobody@replay.com>]
3502 *) Generate an error if given an empty string as a cert directory. Also
3503 generate an error if handed NULL (previously returned 0 to indicate an
3504 error, but didn't set one).
3505 [Ben Laurie, reported by Anonymous <nobody@replay.com>]
3507 *) Add prototypes to SSL methods. Make SSL_write's buffer const, at last.
3510 *) Fix the dummy function BN_ref_mod_exp() in rsaref.c to have the correct
3511 parameters. This was causing a warning which killed off the Win32 compile.
3514 *) Remove C++ style comments from crypto/bn/bn_local.h.
3515 [Neil Costigan <neil.costigan@celocom.com>]
3517 *) The function OBJ_txt2nid was broken. It was supposed to return a nid
3518 based on a text string, looking up short and long names and finally
3519 "dot" format. The "dot" format stuff didn't work. Added new function
3520 OBJ_txt2obj to do the same but return an ASN1_OBJECT and rewrote
3521 OBJ_txt2nid to use it. OBJ_txt2obj can also return objects even if the
3522 OID is not part of the table.
3525 *) Add prototypes to X509 lookup/verify methods, fixing a bug in
3526 X509_LOOKUP_by_alias().
3529 *) Sort openssl functions by name.
3532 *) Get the gendsa program working (hopefully) and add it to app list. Remove
3533 encryption from sample DSA keys (in case anyone is interested the password
3537 *) Make _all_ *_free functions accept a NULL pointer.
3538 [Frans Heymans <fheymans@isaserver.be>]
3540 *) If a DH key is generated in s3_srvr.c, don't blow it by trying to use
3542 [Anonymous <nobody@replay.com>]
3544 *) s_server should send the CAfile as acceptable CAs, not its own cert.
3545 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
3547 *) Don't blow it for numeric -newkey arguments to apps/req.
3548 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
3550 *) Temp key "for export" tests were wrong in s3_srvr.c.
3551 [Anonymous <nobody@replay.com>]
3553 *) Add prototype for temp key callback functions
3554 SSL_CTX_set_tmp_{rsa,dh}_callback().
3557 *) Make DH_free() tolerate being passed a NULL pointer (like RSA_free() and
3558 DSA_free()). Make X509_PUBKEY_set() check for errors in d2i_PublicKey().
3561 *) X509_name_add_entry() freed the wrong thing after an error.
3562 [Arne Ansper <arne@ats.cyber.ee>]
3564 *) rsa_eay.c would attempt to free a NULL context.
3565 [Arne Ansper <arne@ats.cyber.ee>]
3567 *) BIO_s_socket() had a broken should_retry() on Windoze.
3568 [Arne Ansper <arne@ats.cyber.ee>]
3570 *) BIO_f_buffer() didn't pass on BIO_CTRL_FLUSH.
3571 [Arne Ansper <arne@ats.cyber.ee>]
3573 *) Make sure the already existing X509_STORE->depth variable is initialized
3574 in X509_STORE_new(), but document the fact that this variable is still
3575 unused in the certificate verification process.
3576 [Ralf S. Engelschall]
3578 *) Fix the various library and apps files to free up pkeys obtained from
3579 X509_PUBKEY_get() et al. Also allow x509.c to handle netscape extensions.
3582 *) Fix reference counting in X509_PUBKEY_get(). This makes
3583 demos/maurice/example2.c work, amongst others, probably.
3584 [Steve Henson and Ben Laurie]
3586 *) First cut of a cleanup for apps/. First the `ssleay' program is now named
3587 `openssl' and second, the shortcut symlinks for the `openssl <command>'
3588 are no longer created. This way we have a single and consistent command
3589 line interface `openssl <command>', similar to `cvs <command>'.
3590 [Ralf S. Engelschall, Paul Sutton and Ben Laurie]
3592 *) ca.c: move test for DSA keys inside #ifndef NO_DSA. Make pubkey
3593 BIT STRING wrapper always have zero unused bits.
3596 *) Add CA.pl, perl version of CA.sh, add extended key usage OID.
3599 *) Make the top-level INSTALL documentation easier to understand.
3602 *) Makefiles updated to exit if an error occurs in a sub-directory
3603 make (including if user presses ^C) [Paul Sutton]
3605 *) Make Montgomery context stuff explicit in RSA data structure.
3608 *) Fix build order of pem and err to allow for generated pem.h.
3611 *) Fix renumbering bug in X509_NAME_delete_entry().
3614 *) Enhanced the err-ins.pl script so it makes the error library number
3615 global and can add a library name. This is needed for external ASN1 and
3616 other error libraries.
3619 *) Fixed sk_insert which never worked properly.
3622 *) Fix ASN1 macros so they can handle indefinite length construted
3623 EXPLICIT tags. Some non standard certificates use these: they can now
3627 *) Merged the various old/obsolete SSLeay documentation files (doc/xxx.doc)
3628 into a single doc/ssleay.txt bundle. This way the information is still
3629 preserved but no longer messes up this directory. Now it's new room for
3630 the new set of documenation files.
3631 [Ralf S. Engelschall]
3633 *) SETs were incorrectly DER encoded. This was a major pain, because they
3634 shared code with SEQUENCEs, which aren't coded the same. This means that
3635 almost everything to do with SETs or SEQUENCEs has either changed name or
3636 number of arguments.
3637 [Ben Laurie, based on a partial fix by GP Jayan <gp@nsj.co.jp>]
3639 *) Fix test data to work with the above.
3642 *) Fix the RSA header declarations that hid a bug I fixed in 0.9.0b but
3643 was already fixed by Eric for 0.9.1 it seems.
3644 [Ben Laurie - pointed out by Ulf Möller <ulf@fitug.de>]
3646 *) Autodetect FreeBSD3.
3649 *) Fix various bugs in Configure. This affects the following platforms:
3653 unixware-2.0-pentium
3657 *) Eliminate generated files from CVS. Reorder tests to regenerate files
3658 before they are needed.
3661 *) Generate Makefile.ssl from Makefile.org (to keep CVS happy).
3665 Changes between 0.9.1b and 0.9.1c [23-Dec-1998]
3667 *) Added OPENSSL_VERSION_NUMBER to crypto/crypto.h and
3668 changed SSLeay to OpenSSL in version strings.
3669 [Ralf S. Engelschall]
3671 *) Some fixups to the top-level documents.
3674 *) Fixed the nasty bug where rsaref.h was not found under compile-time
3675 because the symlink to include/ was missing.
3676 [Ralf S. Engelschall]
3678 *) Incorporated the popular no-RSA/DSA-only patches
3679 which allow to compile a RSA-free SSLeay.
3680 [Andrew Cooke / Interrader Ldt., Ralf S. Engelschall]
3682 *) Fixed nasty rehash problem under `make -f Makefile.ssl links'
3683 when "ssleay" is still not found.
3684 [Ralf S. Engelschall]
3686 *) Added more platforms to Configure: Cray T3E, HPUX 11,
3687 [Ralf S. Engelschall, Beckmann <beckman@acl.lanl.gov>]
3689 *) Updated the README file.
projects / openssl.git / blob