4 Changes between 0.9.6 and 0.9.7 [xx XXX 2000]
6 *) Zero the premaster secret after deriving the master secret in
10 *) In PKCS7_set_type() initialise content_type in PKCS7_ENC_CONTENT
11 to data. This was previously part of the PKCS7 ASN1 code. This
12 was causing problems with OpenSSL created PKCS#12 and PKCS#7 structures.
13 [Steve Henson, reported by Kenneth R. Robinette
14 <support@securenetterm.com>]
16 *) Add CRYPTO_push_info() and CRYPTO_pop_info() calls to new ASN1
17 routines: without these tracing memory leaks is very painful.
18 Fix leaks in PKCS12 and PKCS7 routines.
21 *) Fix for Irix with NO_ASM.
22 ["Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
24 *) Add some EVP_add_digest_alias registrations (as found in
25 OpenSSL_add_all_digests()), to SSL_library_init()
26 aka OpenSSL_add_ssl_algorithms(). This provides improved
27 compatibility with peers using X.509 certificates
28 with unconventional AlgorithmIdentifier OIDs.
31 *) ./config script fixes.
32 [Ulf Moeller, Richard Levitte]
34 *) Make X509_time_adj() cope with the new behaviour of ASN1_TIME_new().
35 Previously it initialised the 'type' argument to V_ASN1_UTCTIME which
36 effectively meant GeneralizedTime would never be used. Now it
37 is initialised to -1 but X509_time_adj() now has to check the value
38 and use ASN1_TIME_set() if the value is not V_ASN1_UTCTIME or
39 V_ASN1_GENERALIZEDTIME, without this it always uses GeneralizedTime.
40 [Steve Henson, reported by Kenneth R. Robinette
41 <support@securenetterm.com>]
43 *) Fixes to BN_to_ASN1_INTEGER when bn is zero. This would previously
44 result in a zero length in the ASN1_INTEGER structure which was
45 not consistent with the structure when d2i_ASN1_INTEGER() was used
46 and would cause ASN1_INTEGER_cmp() to fail. Enhance s2i_ASN1_INTEGER()
47 to cope with hex and negative integers. Fix bug in i2a_ASN1_INTEGER()
48 where it did not print out a minus for negative ASN1_INTEGER.
51 *) Fix 'openssl passwd -1'.
54 *) Add summary printout to ocsp utility. The various functions which
55 convert status values to strings have been renamed to:
56 OCSP_response_status_str(), OCSP_cert_status_str() and
57 OCSP_crl_reason_str() and are no longer static. New options
58 to verify nonce values and to disable verification. OCSP response
59 printout format cleaned up.
62 *) Add additional OCSP certificate checks. These are those specified
63 in RFC2560. This consists of two separate checks: the CA of the
64 certificate being checked must either be the OCSP signer certificate
65 or the issuer of the OCSP signer certificate. In the latter case the
66 OCSP signer certificate must contain the OCSP signing extended key
67 usage. This check is performed by attempting to match the OCSP
68 signer or the OCSP signer CA to the issuerNameHash and issuerKeyHash
69 in the OCSP_CERTID structures of the response.
72 *) Initial OCSP certificate verification added to OCSP_basic_verify()
73 and related routines. This uses the standard OpenSSL certificate
74 verify routines to perform initial checks (just CA validity) and
75 to obtain the certificate chain. Then additional checks will be
76 performed on the chain. Currently the root CA is checked to see
77 if it is explicitly trusted for OCSP signing. This is used to set
78 a root CA as a global signing root: that is any certificate that
79 chains to that CA is an acceptable OCSP signing certificate.
82 *) New '-extfile ...' option to 'openssl ca' for reading X.509v3
83 extensions from a separate configuration file.
84 As when reading extensions from the main configuration file,
85 the '-extensions ...' option may be used for specifying the
87 [Massimiliano Pala <madwolf@comune.modena.it>]
89 *) Change PKCS12_key_gen_asc() so it can cope with non null
90 terminated strings whose length is passed in the passlen
91 parameter, for example from PEM callbacks. This was done
92 by adding an extra length parameter to asc2uni().
93 [Steve Henson, reported by <oddissey@samsung.co.kr>]
95 *) New OCSP utility. Allows OCSP requests to be generated or
96 read. The request can be sent to a responder and the output
97 parsed, outputed or printed in text form. Not complete yet:
98 still needs to check the OCSP response validity.
101 *) New subcommands for 'openssl ca':
102 'openssl ca -status <serial>' prints the status of the cert with
103 the given serial number (according to the index file).
104 'openssl ca -updatedb' updates the expiry status of certificates
106 [Massimiliano Pala <madwolf@comune.modena.it>]
108 *) New '-newreq-nodes' command option to CA.pl. This is like
109 '-newreq', but calls 'openssl req' with the '-nodes' option
110 so that the resulting key is not encrypted.
111 [Damien Miller <djm@mindrot.org>]
113 *) New configuration for the GNU Hurd.
114 [Jonathan Bartlett <johnnyb@wolfram.com> via Richard Levitte]
116 *) Initial code to implement OCSP basic response verify. This
117 is currently incomplete. Currently just finds the signer's
118 certificate and verifies the signature on the response.
121 *) New SSLeay_version code SSLEAY_DIR to determine the compiled-in
122 value of OPENSSLDIR. This is available via the new '-d' option
123 to 'openssl version', and is also included in 'openssl version -a'.
126 *) Fix C code generated by 'openssl dsaparam -C': If a BN_bin2bn
127 call failed, free the DSA structure.
130 *) Allowing defining memory allocation callbacks that will be given
131 file name and line number information in additional arguments
132 (a const char* and an int). The basic functionality remains, as
133 well as the original possibility to just replace malloc(),
134 realloc() and free() by functions that do not know about these
135 additional arguments. To register and find out the current
136 settings for extended allocation functions, the following
137 functions are provided:
139 CRYPTO_set_mem_ex_functions
140 CRYPTO_set_locked_mem_ex_functions
141 CRYPTO_get_mem_ex_functions
142 CRYPTO_get_locked_mem_ex_functions
144 These work the same way as CRYPTO_set_mem_functions and friends.
145 CRYPTO_get_[locked_]mem_functions now writes 0 where such an
146 extended allocation function is enabled.
147 Similarly, CRYPTO_get_[locked_]mem_ex_functions writes 0 where
148 a conventional allocation function is enabled.
149 [Richard Levitte, Bodo Moeller]
151 *) Fix to uni2asc() to cope with zero length Unicode strings.
152 These are present in some PKCS#12 files.
155 *) Finish off removing the remaining LHASH function pointer casts.
156 There should no longer be any prototype-casting required when using
157 the LHASH abstraction, and any casts that remain are "bugs". See
158 the callback types and macros at the head of lhash.h for details
159 (and "OBJ_cleanup" in crypto/objects/obj_dat.c as an example).
162 *) Add automatic query of EGD sockets in RAND_poll() for the unix variant.
163 If an EGD or PRNGD is running and enough entropy is returned, automatic
164 seeding like with /dev/[u]random will be performed.
165 Positions tried are: /etc/entropy, /var/run/egd-pool.
168 *) Change the Unix RAND_poll() variant to be able to poll several
169 random devices, as specified by DEVRANDOM, until a sufficient amount
170 of data has been collected. We spend at most 10 ms on each file
171 (select timeout) and read in non-blocking mode. DEVRANDOM now
172 defaults to the list "/dev/urandom", "/dev/random", "/dev/srandom"
173 (previously it was just the string "/dev/urandom"), so on typical
174 platforms the 10 ms delay will never occur.
175 Also separate out the Unix variant to its own file, rand_unix.c.
176 For VMS, there's a currently-empty rand_vms.c.
179 *) Move OCSP client related routines to ocsp_cl.c. These
180 provide utility functions which an application needing
181 to issue a request to an OCSP responder and analyse the
182 response will typically need: as opposed to those which an
183 OCSP responder itself would need which will be added later.
185 OCSP_request_sign() signs an OCSP request with an API similar
186 to PKCS7_sign(). OCSP_response_status() returns status of OCSP
187 response. OCSP_response_get1_basic() extracts basic response
188 from response. OCSP_resp_find_status(): finds and extracts status
189 information from an OCSP_CERTID structure (which will be created
190 when the request structure is built). These are built from lower
191 level functions which work on OCSP_SINGLERESP structures but
192 wont normally be used unless the application wishes to examine
193 extensions in the OCSP response for example.
195 Replace nonce routines with a pair of functions.
196 OCSP_request_add1_nonce() adds a nonce value and optionally
197 generates a random value. OCSP_check_nonce() checks the
198 validity of the nonce in an OCSP response.
201 *) Change function OCSP_request_add() to OCSP_request_add0_id().
202 This doesn't copy the supplied OCSP_CERTID and avoids the
203 need to free up the newly created id. Change return type
204 to OCSP_ONEREQ to return the internal OCSP_ONEREQ structure.
205 This can then be used to add extensions to the request.
206 Deleted OCSP_request_new(), since most of its functionality
207 is now in OCSP_REQUEST_new() (and the case insensitive name
208 clash) apart from the ability to set the request name which
209 will be added elsewhere.
212 *) Update OCSP API. Remove obsolete extensions argument from
213 various functions. Extensions are now handled using the new
214 OCSP extension code. New simple OCSP HTTP function which
215 can be used to send requests and parse the response.
218 *) Fix the PKCS#7 (S/MIME) code to work with new ASN1. Two new
219 ASN1_ITEM structures help with sign and verify. PKCS7_ATTR_SIGN
220 uses the special reorder version of SET OF to sort the attributes
221 and reorder them to match the encoded order. This resolves a long
222 standing problem: a verify on a PKCS7 structure just after signing
223 it used to fail because the attribute order did not match the
224 encoded order. PKCS7_ATTR_VERIFY does not reorder the attributes:
225 it uses the received order. This is necessary to tolerate some broken
226 software that does not order SET OF. This is handled by encoding
227 as a SEQUENCE OF but using implicit tagging (with UNIVERSAL class)
228 to produce the required SET OF.
231 *) Have mk1mf.pl generate the macros OPENSSL_BUILD_SHLIBCRYPTO and
232 OPENSSL_BUILD_SHLIBSSL and use them appropriately in the header
233 files to get correct declarations of the ASN.1 item variables.
236 *) Rewrite of PKCS#12 code to use new ASN1 functionality. Replace many
237 PKCS#12 macros with real functions. Fix two unrelated ASN1 bugs:
238 asn1_check_tlen() would sometimes attempt to use 'ctx' when it was
239 NULL and ASN1_TYPE was not dereferenced properly in asn1_ex_c2i().
240 New ASN1 macro: DECLARE_ASN1_ITEM() which just declares the relevant
241 ASN1_ITEM and no wrapper functions.
244 *) New functions or ASN1_item_d2i_fp() and ASN1_item_d2i_bio(). These
245 replace the old function pointer based I/O routines. Change most of
246 the *_d2i_bio() and *_d2i_fp() functions to use these.
249 *) Enhance mkdef.pl to be more accepting about spacing in C preprocessor
250 lines, recognice more "algorithms" that can be deselected, and make
251 it complain about algorithm deselection that isn't recognised.
254 *) New ASN1 functions to handle dup, sign, verify, digest, pack and
255 unpack operations in terms of ASN1_ITEM. Modify existing wrappers
256 to use new functions. Add NO_ASN1_OLD which can be set to remove
257 some old style ASN1 functions: this can be used to determine if old
258 code will still work when these eventually go away.
261 *) New extension functions for OCSP structures, these follow the
262 same conventions as certificates and CRLs.
265 *) New function X509V3_add1_i2d(). This automatically encodes and
266 adds an extension. Its behaviour can be customised with various
267 flags to append, replace or delete. Various wrappers added for
268 certifcates and CRLs.
271 *) Fix to avoid calling the underlying ASN1 print routine when
272 an extension cannot be parsed. Correct a typo in the
273 OCSP_SERVICELOC extension. Tidy up print OCSP format.
276 *) Increase s2->wbuf allocation by one byte in ssl2_new (ssl/s2_lib.c).
277 Otherwise do_ssl_write (ssl/s2_pkt.c) will write beyond buffer limits
278 when writing a 32767 byte record.
279 [Bodo Moeller; problem reported by Eric Day <eday@concentric.net>]
281 *) In RSA_eay_public_{en,ed}crypt and RSA_eay_mod_exp (rsa_eay.c),
282 obtain lock CRYPTO_LOCK_RSA before setting rsa->_method_mod_{n,p,q}.
284 (RSA objects have a reference count access to which is protected
285 by CRYPTO_LOCK_RSA [see rsa_lib.c, s3_srvr.c, ssl_cert.c, ssl_rsa.c],
286 so they are meant to be shared between threads.)
287 [Bodo Moeller, Geoff Thorpe; original patch submitted by
288 "Reddie, Steven" <Steven.Reddie@ca.com>]
290 *) Make mkdef.pl parse some of the ASN1 macros and add apropriate
291 entries for variables.
294 *) Fix a deadlock in CRYPTO_mem_leaks().
297 *) Add functionality to apps/openssl.c for detecting locking
298 problems: As the program is single-threaded, all we have
299 to do is register a locking callback using an array for
300 storing which locks are currently held by the program.
303 *) Use a lock around the call to CRYPTO_get_ex_new_index() in
304 SSL_get_ex_data_X509_STORE_idx(), which is used in
305 ssl_verify_cert_chain() and thus can be called at any time
306 during TLS/SSL handshakes so that thread-safety is essential.
307 Unfortunately, the ex_data design is not at all suited
308 for multi-threaded use, so it probably should be abolished.
311 *) Added Broadcom "ubsec" ENGINE to OpenSSL.
312 [Broadcom, tweaked and integrated by Geoff Thorpe]
314 *) Move common extension printing code to new function
315 X509V3_print_extensions(). Reorganise OCSP print routines and
316 implement some needed OCSP ASN1 functions. Add OCSP extensions.
319 *) New function X509_signature_print() to remove duplication in some
323 *) Add a special meaning when SET OF and SEQUENCE OF flags are both
324 set (this was treated exactly the same as SET OF previously). This
325 is used to reorder the STACK representing the structure to match the
326 encoding. This will be used to get round a problem where a PKCS7
327 structure which was signed could not be verified because the STACK
328 order did not reflect the encoded order.
331 *) Reimplement the OCSP ASN1 module using the new code.
334 *) Update the X509V3 code to permit the use of an ASN1_ITEM structure
335 for its ASN1 operations. The old style function pointers still exist
336 for now but they will eventually go away.
339 *) Merge in replacement ASN1 code from the ASN1 branch. This almost
340 completely replaces the old ASN1 functionality with a table driven
341 encoder and decoder which interprets an ASN1_ITEM structure describing
342 the ASN1 module. Compatibility with the existing ASN1 API (i2d,d2i) is
343 largely maintained. Almost all of the old asn1_mac.h macro based ASN1
344 has also been converted to the new form.
347 *) Change BN_mod_exp_recp so that negative moduli are tolerated
348 (the sign is ignored). Similarly, ignore the sign in BN_MONT_CTX_set
349 so that BN_mod_exp_mont and BN_mod_exp_mont_word work
353 *) Fix BN_uadd and BN_usub: Always return non-negative results instead
354 of not touching the result's sign bit.
357 *) BN_div bugfix: If the result is 0, the sign (res->neg) must not be
361 *) Changed the LHASH code to use prototypes for callbacks, and created
362 macros to declare and implement thin (optionally static) functions
363 that provide type-safety and avoid function pointer casting for the
364 type-specific callbacks.
367 *) Use better test patterns in bntest.
370 *) Added Kerberos Cipher Suites to be used with TLS, as written in
372 [Veers Staats <staatsvr@asc.hpc.mil>,
373 Jeffrey Altman <jaltman@columbia.edu>, via Richard Levitte]
375 *) rand_win.c fix for Borland C.
378 *) BN_rshift bugfix for n == 0.
381 *) Reformat the FAQ so the different questions and answers can be divided
382 in sections depending on the subject.
385 *) Have the zlib compression code load ZLIB.DLL dynamically under
389 *) New function BN_mod_sqrt for computing square roots modulo a prime
390 (using the probabilistic Tonelli-Shanks algorithm unless
391 p == 3 (mod 4) or p == 5 (mod 8), which are cases that can
392 be handled deterministically).
393 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
395 *) Store verify_result within SSL_SESSION also for client side to
396 avoid potential security hole. (Re-used sessions on the client side
397 always resulted in verify_result==X509_V_OK, not using the original
398 result of the server certificate verification.)
401 *) Make BN_mod_inverse faster by explicitly handling small quotients
402 in the Euclid loop. (Speed gain about 20% for small moduli [256 or
403 512 bits], about 30% for larger ones [1024 or 2048 bits].)
406 *) Fix ssl3_pending: If the record in s->s3->rrec is not of type
407 SSL3_RT_APPLICATION_DATA, return 0.
408 Similarly, change ssl2_pending to return 0 if SSL_in_init(s) is true.
412 Both ssl2_peek and ssl3_peek, which were totally broken in earlier
413 releases, have been re-implemented by renaming the previous
414 implementations of ssl2_read and ssl3_read to ssl2_read_internal
415 and ssl3_read_internal, respectively, and adding 'peek' parameters
416 to them. The new ssl[23]_{read,peek} functions are calls to
417 ssl[23]_read_internal with the 'peek' flag set appropriately.
418 A 'peek' parameter has also been added to ssl3_read_bytes, which
419 does the actual work for ssl3_read_internal.
422 *) New function BN_kronecker.
425 *) Fix BN_gcd so that it works on negative inputs; the result is
426 positive unless both parameters are zero.
427 Previously something reasonably close to an infinite loop was
428 possible because numbers could be growing instead of shrinking
429 in the implementation of Euclid's algorithm.
432 *) Fix BN_is_word() and BN_is_one() macros to take into account the
433 sign of the number in question.
435 Fix BN_is_word(a,w) to work correctly for w == 0.
437 The old BN_is_word(a,w) macro is now called BN_abs_is_word(a,w)
438 because its test if the absolute value of 'a' equals 'w'.
439 Note that BN_abs_is_word does *not* handle w == 0 reliably;
440 it exists mostly for use in the implementations of BN_is_zero(),
441 BN_is_one(), and BN_is_word().
444 *) Initialise "ex_data" member of RSA/DSA/DH structures prior to calling
445 the method-specific "init()" handler. Also clean up ex_data after
446 calling the method-specific "finish()" handler. Previously, this was
447 happening the other way round.
450 *) New function BN_swap.
453 *) Use BN_nnmod instead of BN_mod in crypto/bn/bn_exp.c so that
454 the exponentiation functions are more likely to produce reasonable
455 results on negative inputs.
458 *) Change BN_mod_mul so that the result is always non-negative.
459 Previously, it could be negative if one of the factors was negative;
460 I don't think anyone really wanted that behaviour.
463 *) Move BN_mod_... functions into new file crypto/bn/bn_mod.c
464 (except for exponentiation, which stays in crypto/bn/bn_exp.c,
465 and BN_mod_mul_reciprocal, which stays in crypto/bn/bn_recp.c)
466 and add new functions:
479 These functions always generate non-negative results.
481 BN_nnmod otherwise is like BN_mod (if BN_mod computes a remainder r
482 such that |m| < r < 0, BN_nnmod will output rem + |m| instead).
484 BN_mod_XXX_quick(r, a, [b,] m) generates the same result as
485 BN_mod_XXX(r, a, [b,] m, ctx), but requires that a [and b]
487 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
489 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
490 was actually never needed) and in BN_mul(). The removal in BN_mul()
491 required a small change in bn_mul_part_recursive() and the addition
492 of the functions bn_cmp_part_words(), bn_sub_part_words() and
493 bn_add_part_words(), which do the same thing as bn_cmp_words(),
494 bn_sub_words() and bn_add_words() except they take arrays with
498 *) In 'openssl passwd', verify passwords read from the terminal
499 unless the '-salt' option is used (which usually means that
500 verification would just waste user's time since the resulting
501 hash is going to be compared with some given password hash)
502 or the new '-noverify' option is used.
504 This is an incompatible change, but it does not affect
505 non-interactive use of 'openssl passwd' (passwords on the command
506 line, '-stdin' option, '-in ...' option) and thus should not
510 *) Remove all references to RSAref, since there's no more need for it.
513 *) Increase BN_CTX_NUM (the number of BIGNUMs in a BN_CTX) to 16.
514 The previous value, 12, was not always sufficient for BN_mod_exp().
517 *) Make DSO load along a path given through an environment variable
518 (SHLIB_PATH) with shl_load().
521 *) Constify the ENGINE code as a result of BIGNUM constification.
522 Also constify the RSA code and most things related to it. In a
523 few places, most notable in the depth of the ASN.1 code, ugly
524 casts back to non-const were required (to be solved at a later
528 *) Make it so the openssl application has all engines loaded by default.
531 *) Constify the BIGNUM routines a little more.
534 *) Make sure that shared libraries get the internal name engine with
535 the full version number and not just 0. This should mark the
536 shared libraries as not backward compatible. Of course, this should
537 be changed again when we can guarantee backward binary compatibility.
540 *) Add the following functions:
546 ENGINE_load_builtin_engines()
548 That way, an application can itself choose if external engines that
549 are built-in in OpenSSL shall ever be used or not. The benefit is
550 that applications won't have to be linked with libdl or other dso
551 libraries unless it's really needed.
553 Changed 'openssl engine' to load all engines on demand.
554 Changed the engine header files to avoid the duplication of some
555 declarations (they differed!).
558 *) 'openssl engine' can now list capabilities.
561 *) Better error reporting in 'openssl engine'.
564 *) Never call load_dh_param(NULL) in s_server.
567 *) Add engine application. It can currently list engines by name and
568 identity, and test if they are actually available.
571 *) Add support for shared libraries under Irix.
572 [Albert Chin-A-Young <china@thewrittenword.com>]
574 *) Improve RPM specification file by forcing symbolic linking and making
575 sure the installed documentation is also owned by root.root.
576 [Damien Miller <djm@mindrot.org>]
578 *) Add configuration option to build on Linux on both big-endian and
580 [Ralf Baechle <ralf@uni-koblenz.de>]
582 *) Give the OpenSSL applications more possibilities to make use of
583 keys (public as well as private) handled by engines.
586 *) Add OCSP code that comes from CertCo.
589 *) Add VMS support for the Rijndael code.
592 *) Added untested support for Nuron crypto accelerator.
595 *) Add support for external cryptographic devices. This code was
596 previously distributed separately as the "engine" branch.
597 [Geoff Thorpe, Richard Levitte]
599 *) Rework the filename-translation in the DSO code. It is now possible to
600 have far greater control over how a "name" is turned into a filename
601 depending on the operating environment and any oddities about the
602 different shared library filenames on each system.
605 *) Support threads on FreeBSD-elf in Configure.
608 *) Add the possibility to create shared libraries on HP-UX
611 *) Fix for SHA1 assembly problem with MASM: it produces
612 warnings about corrupt line number information when assembling
613 with debugging information. This is caused by the overlapping
615 [Bernd Matthes <mainbug@celocom.de>, Steve Henson]
618 NCONF_get_number() has no error checking at all. As a replacement,
619 NCONF_get_number_e() is defined (_e for "error checking") and is
620 promoted strongly. The old NCONF_get_number is kept around for
621 binary backward compatibility.
622 Make it possible for methods to load from something other than a BIO,
623 by providing a function pointer that is given a name instead of a BIO.
624 For example, this could be used to load configuration data from an
628 *) Fix typo in get_cert_by_subject() in by_dir.c
629 [Jean-Marc Desperrier <jean-marc.desperrier@certplus.com>]
631 *) Rework the system to generate shared libraries:
633 - Make note of the expected extension for the shared libraries and
634 if there is a need for symbolic links from for example libcrypto.so.0
635 to libcrypto.so.0.9.7. There is extended info in Configure for
638 - Make as few rebuilds of the shared libraries as possible.
640 - Still avoid linking the OpenSSL programs with the shared libraries.
642 - When installing, install the shared libraries separately from the
646 *) Fix for non blocking accept BIOs. Added new I/O special reason
647 BIO_RR_ACCEPT to cover this case. Previously use of accept BIOs
648 with non blocking I/O was not possible because no retry code was
649 implemented. Also added new SSL code SSL_WANT_ACCEPT to cover
653 *) Added the beginnings of Rijndael support.
656 *) Fix for bug in DirectoryString mask setting. Add support for
657 X509_NAME_print_ex() in 'req' and X509_print_ex() function
658 to allow certificate printing to more controllable, additional
659 'certopt' option to 'x509' to allow new printing options to be
663 *) Clean old EAY MD5 hack from e_os.h.
666 *) Fix SSL_CTX_set_read_ahead macro to actually use its argument.
668 Copy SSL_CTX's read_ahead flag to SSL object directly in SSL_new
669 and not in SSL_clear because the latter is also used by the
670 accept/connect functions; previously, the settings made by
671 SSL_set_read_ahead would be lost during the handshake.
672 [Bodo Moeller; problems reported by Anders Gertz <gertz@epact.se>]
674 *) Correct util/mkdef.pl to be selective about disabled algorithms.
675 Previously, it would create entries for disableed algorithms no
679 Changes between 0.9.5a and 0.9.6 [24 Sep 2000]
681 *) In ssl23_get_client_hello, generate an error message when faced
682 with an initial SSL 3.0/TLS record that is too small to contain the
683 first two bytes of the ClientHello message, i.e. client_version.
684 (Note that this is a pathologic case that probably has never happened
685 in real life.) The previous approach was to use the version number
686 from the record header as a substitute; but our protocol choice
687 should not depend on that one because it is not authenticated
688 by the Finished messages.
691 *) More robust randomness gathering functions for Windows.
692 [Jeffrey Altman <jaltman@columbia.edu>]
694 *) For compatibility reasons if the flag X509_V_FLAG_ISSUER_CHECK is
695 not set then we don't setup the error code for issuer check errors
696 to avoid possibly overwriting other errors which the callback does
697 handle. If an application does set the flag then we assume it knows
698 what it is doing and can handle the new informational codes
702 *) Fix for a nasty bug in ASN1_TYPE handling. ASN1_TYPE is used for
703 a general "ANY" type, as such it should be able to decode anything
704 including tagged types. However it didn't check the class so it would
705 wrongly interpret tagged types in the same way as their universal
706 counterpart and unknown types were just rejected. Changed so that the
707 tagged and unknown types are handled in the same way as a SEQUENCE:
708 that is the encoding is stored intact. There is also a new type
709 "V_ASN1_OTHER" which is used when the class is not universal, in this
710 case we have no idea what the actual type is so we just lump them all
714 *) On VMS, stdout may very well lead to a file that is written to
715 in a record-oriented fashion. That means that every write() will
716 write a separate record, which will be read separately by the
717 programs trying to read from it. This can be very confusing.
719 The solution is to put a BIO filter in the way that will buffer
720 text until a linefeed is reached, and then write everything a
721 line at a time, so every record written will be an actual line,
722 not chunks of lines and not (usually doesn't happen, but I've
723 seen it once) several lines in one record. BIO_f_linebuffer() is
726 Currently, it's a VMS-only method, because that's where it has
727 been tested well enough.
730 *) Remove 'optimized' squaring variant in BN_mod_mul_montgomery,
731 it can return incorrect results.
732 (Note: The buggy variant was not enabled in OpenSSL 0.9.5a,
733 but it was in 0.9.6-beta[12].)
736 *) Disable the check for content being present when verifying detached
737 signatures in pk7_smime.c. Some versions of Netscape (wrongly)
738 include zero length content when signing messages.
741 *) New BIO_shutdown_wr macro, which invokes the BIO_C_SHUTDOWN_WR
742 BIO_ctrl (for BIO pairs).
745 *) Add DSO method for VMS.
748 *) Bug fix: Montgomery multiplication could produce results with the
752 *) Add RPM specification openssl.spec and modify it to build three
753 packages. The default package contains applications, application
754 documentation and run-time libraries. The devel package contains
755 include files, static libraries and function documentation. The
756 doc package contains the contents of the doc directory. The original
757 openssl.spec was provided by Damien Miller <djm@mindrot.org>.
760 *) Add a large number of documentation files for many SSL routines.
761 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
763 *) Add a configuration entry for Sony News 4.
764 [NAKAJI Hiroyuki <nakaji@tutrp.tut.ac.jp>]
766 *) Don't set the two most significant bits to one when generating a
767 random number < q in the DSA library.
770 *) New SSL API mode 'SSL_MODE_AUTO_RETRY'. This disables the default
771 behaviour that SSL_read may result in SSL_ERROR_WANT_READ (even if
772 the underlying transport is blocking) if a handshake took place.
773 (The default behaviour is needed by applications such as s_client
774 and s_server that use select() to determine when to use SSL_read;
775 but for applications that know in advance when to expect data, it
776 just makes things more complicated.)
779 *) Add RAND_egd_bytes(), which gives control over the number of bytes read
783 *) Add a few more EBCDIC conditionals that make `req' and `x509'
784 work better on such systems.
785 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
787 *) Add two demo programs for PKCS12_parse() and PKCS12_create().
788 Update PKCS12_parse() so it copies the friendlyName and the
789 keyid to the certificates aux info.
792 *) Fix bug in PKCS7_verify() which caused an infinite loop
793 if there was more than one signature.
794 [Sven Uszpelkat <su@celocom.de>]
796 *) Major change in util/mkdef.pl to include extra information
797 about each symbol, as well as presentig variables as well
798 as functions. This change means that there's n more need
799 to rebuild the .num files when some algorithms are excluded.
802 *) Allow the verify time to be set by an application,
803 rather than always using the current time.
806 *) Phase 2 verify code reorganisation. The certificate
807 verify code now looks up an issuer certificate by a
808 number of criteria: subject name, authority key id
809 and key usage. It also verifies self signed certificates
810 by the same criteria. The main comparison function is
811 X509_check_issued() which performs these checks.
813 Lot of changes were necessary in order to support this
814 without completely rewriting the lookup code.
816 Authority and subject key identifier are now cached.
818 The LHASH 'certs' is X509_STORE has now been replaced
819 by a STACK_OF(X509_OBJECT). This is mainly because an
820 LHASH can't store or retrieve multiple objects with
823 As a result various functions (which were all internal
824 use only) have changed to handle the new X509_STORE
825 structure. This will break anything that messed round
826 with X509_STORE internally.
828 The functions X509_STORE_add_cert() now checks for an
829 exact match, rather than just subject name.
831 The X509_STORE API doesn't directly support the retrieval
832 of multiple certificates matching a given criteria, however
833 this can be worked round by performing a lookup first
834 (which will fill the cache with candidate certificates)
835 and then examining the cache for matches. This is probably
836 the best we can do without throwing out X509_LOOKUP
837 entirely (maybe later...).
839 The X509_VERIFY_CTX structure has been enhanced considerably.
841 All certificate lookup operations now go via a get_issuer()
842 callback. Although this currently uses an X509_STORE it
843 can be replaced by custom lookups. This is a simple way
844 to bypass the X509_STORE hackery necessary to make this
845 work and makes it possible to use more efficient techniques
846 in future. A very simple version which uses a simple
847 STACK for its trusted certificate store is also provided
848 using X509_STORE_CTX_trusted_stack().
850 The verify_cb() and verify() callbacks now have equivalents
851 in the X509_STORE_CTX structure.
853 X509_STORE_CTX also has a 'flags' field which can be used
854 to customise the verify behaviour.
857 *) Add new PKCS#7 signing option PKCS7_NOSMIMECAP which
858 excludes S/MIME capabilities.
861 *) When a certificate request is read in keep a copy of the
862 original encoding of the signed data and use it when outputing
863 again. Signatures then use the original encoding rather than
864 a decoded, encoded version which may cause problems if the
865 request is improperly encoded.
868 *) For consistency with other BIO_puts implementations, call
869 buffer_write(b, ...) directly in buffer_puts instead of calling
872 In BIO_puts, increment b->num_write as in BIO_write.
873 [Peter.Sylvester@EdelWeb.fr]
875 *) Fix BN_mul_word for the case where the word is 0. (We have to use
876 BN_zero, we may not return a BIGNUM with an array consisting of
880 *) Avoid calling abort() from within the library when problems are
881 detected, except if preprocessor symbols have been defined
882 (such as REF_CHECK, BN_DEBUG etc.).
885 *) New openssl application 'rsautl'. This utility can be
886 used for low level RSA operations. DER public key
887 BIO/fp routines also added.
890 *) New Configure entry and patches for compiling on QNX 4.
891 [Andreas Schneider <andreas@ds3.etech.fh-hamburg.de>]
893 *) A demo state-machine implementation was sponsored by
894 Nuron (http://www.nuron.com/) and is now available in
898 *) New options added to the 'dgst' utility for signature
899 generation and verification.
902 *) Unrecognized PKCS#7 content types are now handled via a
903 catch all ASN1_TYPE structure. This allows unsupported
904 types to be stored as a "blob" and an application can
905 encode and decode it manually.
908 *) Fix various signed/unsigned issues to make a_strex.c
910 [Oscar Jacobsson <oscar.jacobsson@celocom.com>]
912 *) ASN1 fixes. i2d_ASN1_OBJECT was not returning the correct
913 length if passed a buffer. ASN1_INTEGER_to_BN failed
914 if passed a NULL BN and its argument was negative.
915 [Steve Henson, pointed out by Sven Heiberg <sven@tartu.cyber.ee>]
917 *) Modification to PKCS#7 encoding routines to output definite
918 length encoding. Since currently the whole structures are in
919 memory there's not real point in using indefinite length
920 constructed encoding. However if OpenSSL is compiled with
921 the flag PKCS7_INDEFINITE_ENCODING the old form is used.
924 *) Added BIO_vprintf() and BIO_vsnprintf().
927 *) Added more prefixes to parse for in the the strings written
928 through a logging bio, to cover all the levels that are available
929 through syslog. The prefixes are now:
931 PANIC, EMERG, EMR => LOG_EMERG
932 ALERT, ALR => LOG_ALERT
933 CRIT, CRI => LOG_CRIT
934 ERROR, ERR => LOG_ERR
935 WARNING, WARN, WAR => LOG_WARNING
936 NOTICE, NOTE, NOT => LOG_NOTICE
937 INFO, INF => LOG_INFO
938 DEBUG, DBG => LOG_DEBUG
940 and as before, if none of those prefixes are present at the
941 beginning of the string, LOG_ERR is chosen.
943 On Win32, the LOG_* levels are mapped according to this:
945 LOG_EMERG, LOG_ALERT, LOG_CRIT, LOG_ERR => EVENTLOG_ERROR_TYPE
946 LOG_WARNING => EVENTLOG_WARNING_TYPE
947 LOG_NOTICE, LOG_INFO, LOG_DEBUG => EVENTLOG_INFORMATION_TYPE
951 *) Made it possible to reconfigure with just the configuration
952 argument "reconf" or "reconfigure". The command line arguments
953 are stored in Makefile.ssl in the variable CONFIGURE_ARGS,
954 and are retrieved from there when reconfiguring.
958 [Assar Westerlund <assar@sics.se>, Richard Levitte]
960 *) Add the arguments -CAfile and -CApath to the pkcs12 utility.
963 *) The obj_dat.pl script was messing up the sorting of object
964 names. The reason was that it compared the quoted version
965 of strings as a result "OCSP" > "OCSP Signing" because
966 " > SPACE. Changed script to store unquoted versions of
967 names and add quotes on output. It was also omitting some
968 names from the lookup table if they were given a default
969 value (that is if SN is missing it is given the same
970 value as LN and vice versa), these are now added on the
971 grounds that if an object has a name we should be able to
972 look it up. Finally added warning output when duplicate
973 short or long names are found.
976 *) Changes needed for Tandem NSK.
977 [Scott Uroff <scott@xypro.com>]
979 *) Fix SSL 2.0 rollback checking: Due to an off-by-one error in
980 RSA_padding_check_SSLv23(), special padding was never detected
981 and thus the SSL 3.0/TLS 1.0 countermeasure against protocol
982 version rollback attacks was not effective.
984 In s23_clnt.c, don't use special rollback-attack detection padding
985 (RSA_SSLV23_PADDING) if SSL 2.0 is the only protocol enabled in the
986 client; similarly, in s23_srvr.c, don't do the rollback check if
987 SSL 2.0 is the only protocol enabled in the server.
990 *) Make it possible to get hexdumps of unprintable data with 'openssl
991 asn1parse'. By implication, the functions ASN1_parse_dump() and
992 BIO_dump_indent() are added.
995 *) New functions ASN1_STRING_print_ex() and X509_NAME_print_ex()
996 these print out strings and name structures based on various
997 flags including RFC2253 support and proper handling of
998 multibyte characters. Added options to the 'x509' utility
999 to allow the various flags to be set.
1002 *) Various fixes to use ASN1_TIME instead of ASN1_UTCTIME.
1003 Also change the functions X509_cmp_current_time() and
1004 X509_gmtime_adj() work with an ASN1_TIME structure,
1005 this will enable certificates using GeneralizedTime in validity
1006 dates to be checked.
1009 *) Make the NEG_PUBKEY_BUG code (which tolerates invalid
1010 negative public key encodings) on by default,
1011 NO_NEG_PUBKEY_BUG can be set to disable it.
1014 *) New function c2i_ASN1_OBJECT() which acts on ASN1_OBJECT
1015 content octets. An i2c_ASN1_OBJECT is unnecessary because
1016 the encoding can be trivially obtained from the structure.
1019 *) crypto/err.c locking bugfix: Use write locks (CRYPTO_w_[un]lock),
1020 not read locks (CRYPTO_r_[un]lock).
1023 *) A first attempt at creating official support for shared
1024 libraries through configuration. I've kept it so the
1025 default is static libraries only, and the OpenSSL programs
1026 are always statically linked for now, but there are
1027 preparations for dynamic linking in place.
1028 This has been tested on Linux and True64.
1031 *) Randomness polling function for Win9x, as described in:
1032 Peter Gutmann, Software Generation of Practically Strong
1036 *) Fix so PRNG is seeded in req if using an already existing
1040 *) New options to smime application. -inform and -outform
1041 allow alternative formats for the S/MIME message including
1042 PEM and DER. The -content option allows the content to be
1043 specified separately. This should allow things like Netscape
1044 form signing output easier to verify.
1047 *) Fix the ASN1 encoding of tags using the 'long form'.
1050 *) New ASN1 functions, i2c_* and c2i_* for INTEGER and BIT
1051 STRING types. These convert content octets to and from the
1052 underlying type. The actual tag and length octets are
1053 already assumed to have been read in and checked. These
1054 are needed because all other string types have virtually
1055 identical handling apart from the tag. By having versions
1056 of the ASN1 functions that just operate on content octets
1057 IMPLICIT tagging can be handled properly. It also allows
1058 the ASN1_ENUMERATED code to be cut down because ASN1_ENUMERATED
1059 and ASN1_INTEGER are identical apart from the tag.
1062 *) Change the handling of OID objects as follows:
1064 - New object identifiers are inserted in objects.txt, following
1065 the syntax given in objects.README.
1066 - objects.pl is used to process obj_mac.num and create a new
1068 - obj_dat.pl is used to create a new obj_dat.h, using the data in
1071 This is currently kind of a hack, and the perl code in objects.pl
1072 isn't very elegant, but it works as I intended. The simplest way
1073 to check that it worked correctly is to look in obj_dat.h and
1074 check the array nid_objs and make sure the objects haven't moved
1075 around (this is important!). Additions are OK, as well as
1076 consistent name changes.
1079 *) Add BSD-style MD5-based passwords to 'openssl passwd' (option '-1').
1082 *) Addition of the command line parameter '-rand file' to 'openssl req'.
1083 The given file adds to whatever has already been seeded into the
1084 random pool through the RANDFILE configuration file option or
1085 environment variable, or the default random state file.
1088 *) mkstack.pl now sorts each macro group into lexical order.
1089 Previously the output order depended on the order the files
1090 appeared in the directory, resulting in needless rewriting
1094 *) Patches to make OpenSSL compile under Win32 again. Mostly
1095 work arounds for the VC++ problem that it treats func() as
1096 func(void). Also stripped out the parts of mkdef.pl that
1097 added extra typesafe functions: these no longer exist.
1100 *) Reorganisation of the stack code. The macros are now all
1101 collected in safestack.h . Each macro is defined in terms of
1102 a "stack macro" of the form SKM_<name>(type, a, b). The
1103 DEBUG_SAFESTACK is now handled in terms of function casts,
1104 this has the advantage of retaining type safety without the
1105 use of additional functions. If DEBUG_SAFESTACK is not defined
1106 then the non typesafe macros are used instead. Also modified the
1107 mkstack.pl script to handle the new form. Needs testing to see
1108 if which (if any) compilers it chokes and maybe make DEBUG_SAFESTACK
1109 the default if no major problems. Similar behaviour for ASN1_SET_OF
1110 and PKCS12_STACK_OF.
1113 *) When some versions of IIS use the 'NET' form of private key the
1114 key derivation algorithm is different. Normally MD5(password) is
1115 used as a 128 bit RC4 key. In the modified case
1116 MD5(MD5(password) + "SGCKEYSALT") is used insted. Added some
1117 new functions i2d_RSA_NET(), d2i_RSA_NET() etc which are the same
1118 as the old Netscape_RSA functions except they have an additional
1119 'sgckey' parameter which uses the modified algorithm. Also added
1120 an -sgckey command line option to the rsa utility. Thanks to
1121 Adrian Peck <bertie@ncipher.com> for posting details of the modified
1122 algorithm to openssl-dev.
1125 *) The evp_local.h macros were using 'c.##kname' which resulted in
1126 invalid expansion on some systems (SCO 5.0.5 for example).
1127 Corrected to 'c.kname'.
1128 [Phillip Porch <root@theporch.com>]
1130 *) New X509_get1_email() and X509_REQ_get1_email() functions that return
1131 a STACK of email addresses from a certificate or request, these look
1132 in the subject name and the subject alternative name extensions and
1133 omit any duplicate addresses.
1136 *) Re-implement BN_mod_exp2_mont using independent (and larger) windows.
1137 This makes DSA verification about 2 % faster.
1140 *) Increase maximum window size in BN_mod_exp_... to 6 bits instead of 5
1141 (meaning that now 2^5 values will be precomputed, which is only 4 KB
1142 plus overhead for 1024 bit moduli).
1143 This makes exponentiations about 0.5 % faster for 1024 bit
1144 exponents (as measured by "openssl speed rsa2048").
1147 *) Rename memory handling macros to avoid conflicts with other
1149 Malloc => OPENSSL_malloc
1150 Malloc_locked => OPENSSL_malloc_locked
1151 Realloc => OPENSSL_realloc
1152 Free => OPENSSL_free
1155 *) New function BN_mod_exp_mont_word for small bases (roughly 15%
1156 faster than BN_mod_exp_mont, i.e. 7% for a full DH exchange).
1159 *) CygWin32 support.
1160 [John Jarvie <jjarvie@newsguy.com>]
1162 *) The type-safe stack code has been rejigged. It is now only compiled
1163 in when OpenSSL is configured with the DEBUG_SAFESTACK option and
1164 by default all type-specific stack functions are "#define"d back to
1165 standard stack functions. This results in more streamlined output
1166 but retains the type-safety checking possibilities of the original
1170 *) The STACK code has been cleaned up, and certain type declarations
1171 that didn't make a lot of sense have been brought in line. This has
1172 also involved a cleanup of sorts in safestack.h to more correctly
1173 map type-safe stack functions onto their plain stack counterparts.
1174 This work has also resulted in a variety of "const"ifications of
1175 lots of the code, especially "_cmp" operations which should normally
1176 be prototyped with "const" parameters anyway.
1179 *) When generating bytes for the first time in md_rand.c, 'stir the pool'
1180 by seeding with STATE_SIZE dummy bytes (with zero entropy count).
1181 (The PRNG state consists of two parts, the large pool 'state' and 'md',
1182 where all of 'md' is used each time the PRNG is used, but 'state'
1183 is used only indexed by a cyclic counter. As entropy may not be
1184 well distributed from the beginning, 'md' is important as a
1185 chaining variable. However, the output function chains only half
1186 of 'md', i.e. 80 bits. ssleay_rand_add, on the other hand, chains
1187 all of 'md', and seeding with STATE_SIZE dummy bytes will result
1188 in all of 'state' being rewritten, with the new values depending
1189 on virtually all of 'md'. This overcomes the 80 bit limitation.)
1192 *) In ssl/s2_clnt.c and ssl/s3_clnt.c, call ERR_clear_error() when
1193 the handshake is continued after ssl_verify_cert_chain();
1194 otherwise, if SSL_VERIFY_NONE is set, remaining error codes
1195 can lead to 'unexplainable' connection aborts later.
1196 [Bodo Moeller; problem tracked down by Lutz Jaenicke]
1198 *) Major EVP API cipher revision.
1199 Add hooks for extra EVP features. This allows various cipher
1200 parameters to be set in the EVP interface. Support added for variable
1201 key length ciphers via the EVP_CIPHER_CTX_set_key_length() function and
1202 setting of RC2 and RC5 parameters.
1204 Modify EVP_OpenInit() and EVP_SealInit() to cope with variable key length
1207 Remove lots of duplicated code from the EVP library. For example *every*
1208 cipher init() function handles the 'iv' in the same way according to the
1209 cipher mode. They also all do nothing if the 'key' parameter is NULL and
1210 for CFB and OFB modes they zero ctx->num.
1212 New functionality allows removal of S/MIME code RC2 hack.
1214 Most of the routines have the same form and so can be declared in terms
1217 By shifting this to the top level EVP_CipherInit() it can be removed from
1218 all individual ciphers. If the cipher wants to handle IVs or keys
1219 differently it can set the EVP_CIPH_CUSTOM_IV or EVP_CIPH_ALWAYS_CALL_INIT
1222 Change lots of functions like EVP_EncryptUpdate() to now return a
1223 value: although software versions of the algorithms cannot fail
1224 any installed hardware versions can.
1227 *) Implement SSL_OP_TLS_ROLLBACK_BUG: In ssl3_get_client_key_exchange, if
1228 this option is set, tolerate broken clients that send the negotiated
1229 protocol version number instead of the requested protocol version
1233 *) Call dh_tmp_cb (set by ..._TMP_DH_CB) with correct 'is_export' flag;
1234 i.e. non-zero for export ciphersuites, zero otherwise.
1235 Previous versions had this flag inverted, inconsistent with
1236 rsa_tmp_cb (..._TMP_RSA_CB).
1237 [Bodo Moeller; problem reported by Amit Chopra]
1239 *) Add missing DSA library text string. Work around for some IIS
1240 key files with invalid SEQUENCE encoding.
1243 *) Add a document (doc/standards.txt) that list all kinds of standards
1244 and so on that are implemented in OpenSSL.
1247 *) Enhance c_rehash script. Old version would mishandle certificates
1248 with the same subject name hash and wouldn't handle CRLs at all.
1249 Added -fingerprint option to crl utility, to support new c_rehash
1253 *) Eliminate non-ANSI declarations in crypto.h and stack.h.
1256 *) Fix for SSL server purpose checking. Server checking was
1257 rejecting certificates which had extended key usage present
1258 but no ssl client purpose.
1259 [Steve Henson, reported by Rene Grosser <grosser@hisolutions.com>]
1261 *) Make PKCS#12 code work with no password. The PKCS#12 spec
1262 is a little unclear about how a blank password is handled.
1263 Since the password in encoded as a BMPString with terminating
1264 double NULL a zero length password would end up as just the
1265 double NULL. However no password at all is different and is
1266 handled differently in the PKCS#12 key generation code. NS
1267 treats a blank password as zero length. MSIE treats it as no
1268 password on export: but it will try both on import. We now do
1269 the same: PKCS12_parse() tries zero length and no password if
1270 the password is set to "" or NULL (NULL is now a valid password:
1271 it wasn't before) as does the pkcs12 application.
1274 *) Bugfixes in apps/x509.c: Avoid a memory leak; and don't use
1275 perror when PEM_read_bio_X509_REQ fails, the error message must
1276 be obtained from the error queue.
1279 *) Avoid 'thread_hash' memory leak in crypto/err/err.c by freeing
1280 it in ERR_remove_state if appropriate, and change ERR_get_state
1281 accordingly to avoid race conditions (this is necessary because
1282 thread_hash is no longer constant once set).
1285 *) Bugfix for linux-elf makefile.one.
1288 *) RSA_get_default_method() will now cause a default
1289 RSA_METHOD to be chosen if one doesn't exist already.
1290 Previously this was only set during a call to RSA_new()
1291 or RSA_new_method(NULL) meaning it was possible for
1292 RSA_get_default_method() to return NULL.
1295 *) Added native name translation to the existing DSO code
1296 that will convert (if the flag to do so is set) filenames
1297 that are sufficiently small and have no path information
1298 into a canonical native form. Eg. "blah" converted to
1299 "libblah.so" or "blah.dll" etc.
1302 *) New function ERR_error_string_n(e, buf, len) which is like
1303 ERR_error_string(e, buf), but writes at most 'len' bytes
1304 including the 0 terminator. For ERR_error_string_n, 'buf'
1306 [Damien Miller <djm@mindrot.org>, Bodo Moeller]
1308 *) CONF library reworked to become more general. A new CONF
1309 configuration file reader "class" is implemented as well as a
1310 new functions (NCONF_*, for "New CONF") to handle it. The now
1311 old CONF_* functions are still there, but are reimplemented to
1312 work in terms of the new functions. Also, a set of functions
1313 to handle the internal storage of the configuration data is
1314 provided to make it easier to write new configuration file
1315 reader "classes" (I can definitely see something reading a
1316 configuration file in XML format, for example), called _CONF_*,
1317 or "the configuration storage API"...
1319 The new configuration file reading functions are:
1321 NCONF_new, NCONF_free, NCONF_load, NCONF_load_fp, NCONF_load_bio,
1322 NCONF_get_section, NCONF_get_string, NCONF_get_numbre
1324 NCONF_default, NCONF_WIN32
1326 NCONF_dump_fp, NCONF_dump_bio
1328 NCONF_default and NCONF_WIN32 are method (or "class") choosers,
1329 NCONF_new creates a new CONF object. This works in the same way
1330 as other interfaces in OpenSSL, like the BIO interface.
1331 NCONF_dump_* dump the internal storage of the configuration file,
1332 which is useful for debugging. All other functions take the same
1333 arguments as the old CONF_* functions wth the exception of the
1334 first that must be a `CONF *' instead of a `LHASH *'.
1336 To make it easer to use the new classes with the old CONF_* functions,
1337 the function CONF_set_default_method is provided.
1340 *) Add '-tls1' option to 'openssl ciphers', which was already
1341 mentioned in the documentation but had not been implemented.
1342 (This option is not yet really useful because even the additional
1343 experimental TLS 1.0 ciphers are currently treated as SSL 3.0 ciphers.)
1346 *) Initial DSO code added into libcrypto for letting OpenSSL (and
1347 OpenSSL-based applications) load shared libraries and bind to
1348 them in a portable way.
1349 [Geoff Thorpe, with contributions from Richard Levitte]
1351 Changes between 0.9.5 and 0.9.5a [1 Apr 2000]
1353 *) Make sure _lrotl and _lrotr are only used with MSVC.
1355 *) Use lock CRYPTO_LOCK_RAND correctly in ssleay_rand_status
1356 (the default implementation of RAND_status).
1358 *) Rename openssl x509 option '-crlext', which was added in 0.9.5,
1359 to '-clrext' (= clear extensions), as intended and documented.
1360 [Bodo Moeller; inconsistency pointed out by Michael Attili
1363 *) Fix for HMAC. It wasn't zeroing the rest of the block if the key length
1364 was larger than the MD block size.
1365 [Steve Henson, pointed out by Yost William <YostW@tce.com>]
1367 *) Modernise PKCS12_parse() so it uses STACK_OF(X509) for its ca argument
1368 fix a leak when the ca argument was passed as NULL. Stop X509_PUBKEY_set()
1369 using the passed key: if the passed key was a private key the result
1370 of X509_print(), for example, would be to print out all the private key
1374 *) des_quad_cksum() byte order bug fix.
1375 [Ulf Möller, using the problem description in krb4-0.9.7, where
1376 the solution is attributed to Derrick J Brashear <shadow@DEMENTIA.ORG>]
1378 *) Fix so V_ASN1_APP_CHOOSE works again: however its use is strongly
1380 [Steve Henson, pointed out by Brian Korver <briank@cs.stanford.edu>]
1382 *) For easily testing in shell scripts whether some command
1383 'openssl XXX' exists, the new pseudo-command 'openssl no-XXX'
1384 returns with exit code 0 iff no command of the given name is available.
1385 'no-XXX' is printed in this case, 'XXX' otherwise. In both cases,
1386 the output goes to stdout and nothing is printed to stderr.
1387 Additional arguments are always ignored.
1389 Since for each cipher there is a command of the same name,
1390 the 'no-cipher' compilation switches can be tested this way.
1392 ('openssl no-XXX' is not able to detect pseudo-commands such
1393 as 'quit', 'list-XXX-commands', or 'no-XXX' itself.)
1396 *) Update test suite so that 'make test' succeeds in 'no-rsa' configuration.
1399 *) For SSL_[CTX_]set_tmp_dh, don't create a DH key if SSL_OP_SINGLE_DH_USE
1400 is set; it will be thrown away anyway because each handshake creates
1402 ssl_cert_dup, which is used by SSL_new, now copies DH keys in addition
1403 to parameters -- in previous versions (since OpenSSL 0.9.3) the
1404 'default key' from SSL_CTX_set_tmp_dh would always be lost, meanining
1405 you effectivly got SSL_OP_SINGLE_DH_USE when using this macro.
1408 *) New s_client option -ign_eof: EOF at stdin is ignored, and
1409 'Q' and 'R' lose their special meanings (quit/renegotiate).
1410 This is part of what -quiet does; unlike -quiet, -ign_eof
1411 does not suppress any output.
1414 *) Add compatibility options to the purpose and trust code. The
1415 purpose X509_PURPOSE_ANY is "any purpose" which automatically
1416 accepts a certificate or CA, this was the previous behaviour,
1417 with all the associated security issues.
1419 X509_TRUST_COMPAT is the old trust behaviour: only and
1420 automatically trust self signed roots in certificate store. A
1421 new trust setting X509_TRUST_DEFAULT is used to specify that
1422 a purpose has no associated trust setting and it should instead
1423 use the value in the default purpose.
1426 *) Fix the PKCS#8 DSA private key code so it decodes keys again
1427 and fix a memory leak.
1430 *) In util/mkerr.pl (which implements 'make errors'), preserve
1431 reason strings from the previous version of the .c file, as
1432 the default to have only downcase letters (and digits) in
1433 automatically generated reasons codes is not always appropriate.
1436 *) In ERR_load_ERR_strings(), build an ERR_LIB_SYS error reason table
1437 using strerror. Previously, ERR_reason_error_string() returned
1438 library names as reason strings for SYSerr; but SYSerr is a special
1439 case where small numbers are errno values, not library numbers.
1442 *) Add '-dsaparam' option to 'openssl dhparam' application. This
1443 converts DSA parameters into DH parameters. (When creating parameters,
1444 DSA_generate_parameters is used.)
1447 *) Include 'length' (recommended exponent length) in C code generated
1448 by 'openssl dhparam -C'.
1451 *) The second argument to set_label in perlasm was already being used
1452 so couldn't be used as a "file scope" flag. Moved to third argument
1456 *) In PEM_ASN1_write_bio and some other functions, use RAND_pseudo_bytes
1457 instead of RAND_bytes for encryption IVs and salts.
1460 *) Include RAND_status() into RAND_METHOD instead of implementing
1461 it only for md_rand.c Otherwise replacing the PRNG by calling
1462 RAND_set_rand_method would be impossible.
1465 *) Don't let DSA_generate_key() enter an infinite loop if the random
1466 number generation fails.
1469 *) New 'rand' application for creating pseudo-random output.
1472 *) Added configuration support for Linux/IA64
1473 [Rolf Haberrecker <rolf@suse.de>]
1475 *) Assembler module support for Mingw32.
1478 *) Shared library support for HPUX (in shlib/).
1479 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE> and Anonymous]
1481 *) Shared library support for Solaris gcc.
1482 [Lutz Behnke <behnke@trustcenter.de>]
1484 Changes between 0.9.4 and 0.9.5 [28 Feb 2000]
1486 *) PKCS7_encrypt() was adding text MIME headers twice because they
1487 were added manually and by SMIME_crlf_copy().
1490 *) In bntest.c don't call BN_rand with zero bits argument.
1491 [Steve Henson, pointed out by Andrew W. Gray <agray@iconsinc.com>]
1493 *) BN_mul bugfix: In bn_mul_part_recursion() only the a>a[n] && b>b[n]
1494 case was implemented. This caused BN_div_recp() to fail occasionally.
1497 *) Add an optional second argument to the set_label() in the perl
1498 assembly language builder. If this argument exists and is set
1499 to 1 it signals that the assembler should use a symbol whose
1500 scope is the entire file, not just the current function. This
1501 is needed with MASM which uses the format label:: for this scope.
1502 [Steve Henson, pointed out by Peter Runestig <peter@runestig.com>]
1504 *) Change the ASN1 types so they are typedefs by default. Before
1505 almost all types were #define'd to ASN1_STRING which was causing
1506 STACK_OF() problems: you couldn't declare STACK_OF(ASN1_UTF8STRING)
1510 *) Change names of new functions to the new get1/get0 naming
1511 convention: After 'get1', the caller owns a reference count
1512 and has to call ..._free; 'get0' returns a pointer to some
1513 data structure without incrementing reference counters.
1514 (Some of the existing 'get' functions increment a reference
1515 counter, some don't.)
1516 Similarly, 'set1' and 'add1' functions increase reference
1517 counters or duplicate objects.
1520 *) Allow for the possibility of temp RSA key generation failure:
1521 the code used to assume it always worked and crashed on failure.
1524 *) Fix potential buffer overrun problem in BIO_printf().
1525 [Ulf Möller, using public domain code by Patrick Powell; problem
1526 pointed out by David Sacerdote <das33@cornell.edu>]
1528 *) Support EGD <http://www.lothar.com/tech/crypto/>. New functions
1529 RAND_egd() and RAND_status(). In the command line application,
1530 the EGD socket can be specified like a seed file using RANDFILE
1534 *) Allow the string CERTIFICATE to be tolerated in PKCS#7 structures.
1535 Some CAs (e.g. Verisign) distribute certificates in this form.
1538 *) Remove the SSL_ALLOW_ADH compile option and set the default cipher
1539 list to exclude them. This means that no special compilation option
1540 is needed to use anonymous DH: it just needs to be included in the
1544 *) Change the EVP_MD_CTX_type macro so its meaning consistent with
1545 EVP_MD_type. The old functionality is available in a new macro called
1546 EVP_MD_md(). Change code that uses it and update docs.
1549 *) ..._ctrl functions now have corresponding ..._callback_ctrl functions
1550 where the 'void *' argument is replaced by a function pointer argument.
1551 Previously 'void *' was abused to point to functions, which works on
1552 many platforms, but is not correct. As these functions are usually
1553 called by macros defined in OpenSSL header files, most source code
1554 should work without changes.
1557 *) <openssl/opensslconf.h> (which is created by Configure) now contains
1558 sections with information on -D... compiler switches used for
1559 compiling the library so that applications can see them. To enable
1560 one of these sections, a pre-processor symbol OPENSSL_..._DEFINES
1561 must be defined. E.g.,
1562 #define OPENSSL_ALGORITHM_DEFINES
1563 #include <openssl/opensslconf.h>
1564 defines all pertinent NO_<algo> symbols, such as NO_IDEA, NO_RSA, etc.
1565 [Richard Levitte, Ulf and Bodo Möller]
1567 *) Bugfix: Tolerate fragmentation and interleaving in the SSL 3/TLS
1571 *) Change the 'other' type in certificate aux info to a STACK_OF
1572 X509_ALGOR. Although not an AlgorithmIdentifier as such it has
1573 the required ASN1 format: arbitrary types determined by an OID.
1576 *) Add some PEM_write_X509_REQ_NEW() functions and a command line
1577 argument to 'req'. This is not because the function is newer or
1578 better than others it just uses the work 'NEW' in the certificate
1579 request header lines. Some software needs this.
1582 *) Reorganise password command line arguments: now passwords can be
1583 obtained from various sources. Delete the PEM_cb function and make
1584 it the default behaviour: i.e. if the callback is NULL and the
1585 usrdata argument is not NULL interpret it as a null terminated pass
1586 phrase. If usrdata and the callback are NULL then the pass phrase
1587 is prompted for as usual.
1590 *) Add support for the Compaq Atalla crypto accelerator. If it is installed,
1591 the support is automatically enabled. The resulting binaries will
1592 autodetect the card and use it if present.
1593 [Ben Laurie and Compaq Inc.]
1595 *) Work around for Netscape hang bug. This sends certificate request
1596 and server done in one record. Since this is perfectly legal in the
1597 SSL/TLS protocol it isn't a "bug" option and is on by default. See
1598 the bugs/SSLv3 entry for more info.
1601 *) HP-UX tune-up: new unified configs, HP C compiler bug workaround.
1604 *) Add -rand argument to smime and pkcs12 applications and read/write
1608 *) New 'passwd' tool for crypt(3) and apr1 password hashes.
1611 *) Add command line password options to the remaining applications.
1614 *) Bug fix for BN_div_recp() for numerators with an even number of
1618 *) More tests in bntest.c, and changed test_bn output.
1621 *) ./config recognizes MacOS X now.
1624 *) Bug fix for BN_div() when the first words of num and divsor are
1625 equal (it gave wrong results if (rem=(n1-q*d0)&BN_MASK2) < d0).
1628 *) Add support for various broken PKCS#8 formats, and command line
1629 options to produce them.
1632 *) New functions BN_CTX_start(), BN_CTX_get() and BT_CTX_end() to
1633 get temporary BIGNUMs from a BN_CTX.
1636 *) Correct return values in BN_mod_exp_mont() and BN_mod_exp2_mont()
1640 *) Change the SSLeay_add_all_*() functions to OpenSSL_add_all_*() and
1641 include a #define from the old name to the new. The original intent
1642 was that statically linked binaries could for example just call
1643 SSLeay_add_all_ciphers() to just add ciphers to the table and not
1644 link with digests. This never worked becayse SSLeay_add_all_digests()
1645 and SSLeay_add_all_ciphers() were in the same source file so calling
1646 one would link with the other. They are now in separate source files.
1649 *) Add a new -notext option to 'ca' and a -pubkey option to 'spkac'.
1652 *) Use a less unusual form of the Miller-Rabin primality test (it used
1653 a binary algorithm for exponentiation integrated into the Miller-Rabin
1654 loop, our standard modexp algorithms are faster).
1657 *) Support for the EBCDIC character set completed.
1658 [Martin Kraemer <Martin.Kraemer@Mch.SNI.De>]
1660 *) Source code cleanups: use const where appropriate, eliminate casts,
1661 use void * instead of char * in lhash.
1664 *) Bugfix: ssl3_send_server_key_exchange was not restartable
1665 (the state was not changed to SSL3_ST_SW_KEY_EXCH_B, and because of
1666 this the server could overwrite ephemeral keys that the client
1670 *) Turn DSA_is_prime into a macro that calls BN_is_prime,
1671 using 50 iterations of the Rabin-Miller test.
1673 DSA_generate_parameters now uses BN_is_prime_fasttest (with 50
1674 iterations of the Rabin-Miller test as required by the appendix
1675 to FIPS PUB 186[-1]) instead of DSA_is_prime.
1676 As BN_is_prime_fasttest includes trial division, DSA parameter
1677 generation becomes much faster.
1679 This implies a change for the callback functions in DSA_is_prime
1680 and DSA_generate_parameters: The callback function is called once
1681 for each positive witness in the Rabin-Miller test, not just
1682 occasionally in the inner loop; and the parameters to the
1683 callback function now provide an iteration count for the outer
1684 loop rather than for the current invocation of the inner loop.
1685 DSA_generate_parameters additionally can call the callback
1686 function with an 'iteration count' of -1, meaning that a
1687 candidate has passed the trial division test (when q is generated
1688 from an application-provided seed, trial division is skipped).
1691 *) New function BN_is_prime_fasttest that optionally does trial
1692 division before starting the Rabin-Miller test and has
1693 an additional BN_CTX * argument (whereas BN_is_prime always
1694 has to allocate at least one BN_CTX).
1695 'callback(1, -1, cb_arg)' is called when a number has passed the
1696 trial division stage.
1699 *) Fix for bug in CRL encoding. The validity dates weren't being handled
1703 *) New -pkcs12 option to CA.pl script to write out a PKCS#12 file.
1706 *) New function BN_pseudo_rand().
1709 *) Clean up BN_mod_mul_montgomery(): replace the broken (and unreadable)
1710 bignum version of BN_from_montgomery() with the working code from
1711 SSLeay 0.9.0 (the word based version is faster anyway), and clean up
1715 *) Avoid a race condition in s2_clnt.c (function get_server_hello) that
1716 made it impossible to use the same SSL_SESSION data structure in
1717 SSL2 clients in multiple threads.
1720 *) The return value of RAND_load_file() no longer counts bytes obtained
1721 by stat(). RAND_load_file(..., -1) is new and uses the complete file
1722 to seed the PRNG (previously an explicit byte count was required).
1723 [Ulf Möller, Bodo Möller]
1725 *) Clean up CRYPTO_EX_DATA functions, some of these didn't have prototypes
1726 used (char *) instead of (void *) and had casts all over the place.
1729 *) Make BN_generate_prime() return NULL on error if ret!=NULL.
1732 *) Retain source code compatibility for BN_prime_checks macro:
1733 BN_is_prime(..., BN_prime_checks, ...) now uses
1734 BN_prime_checks_for_size to determine the appropriate number of
1735 Rabin-Miller iterations.
1738 *) Diffie-Hellman uses "safe" primes: DH_check() return code renamed to
1739 DH_CHECK_P_NOT_SAFE_PRIME.
1740 (Check if this is true? OpenPGP calls them "strong".)
1743 *) Merge the functionality of "dh" and "gendh" programs into a new program
1744 "dhparam". The old programs are retained for now but will handle DH keys
1745 (instead of parameters) in future.
1748 *) Make the ciphers, s_server and s_client programs check the return values
1749 when a new cipher list is set.
1752 *) Enhance the SSL/TLS cipher mechanism to correctly handle the TLS 56bit
1753 ciphers. Before when the 56bit ciphers were enabled the sorting was
1756 The syntax for the cipher sorting has been extended to support sorting by
1757 cipher-strength (using the strength_bits hard coded in the tables).
1758 The new command is "@STRENGTH" (see also doc/apps/ciphers.pod).
1760 Fix a bug in the cipher-command parser: when supplying a cipher command
1761 string with an "undefined" symbol (neither command nor alphanumeric
1762 [A-Za-z0-9], ssl_set_cipher_list used to hang in an endless loop. Now
1763 an error is flagged.
1765 Due to the strength-sorting extension, the code of the
1766 ssl_create_cipher_list() function was completely rearranged. I hope that
1767 the readability was also increased :-)
1768 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
1770 *) Minor change to 'x509' utility. The -CAcreateserial option now uses 1
1771 for the first serial number and places 2 in the serial number file. This
1772 avoids problems when the root CA is created with serial number zero and
1773 the first user certificate has the same issuer name and serial number
1777 *) Fixes to X509_ATTRIBUTE utilities, change the 'req' program so it uses
1778 the new code. Add documentation for this stuff.
1781 *) Changes to X509_ATTRIBUTE utilities. These have been renamed from
1782 X509_*() to X509at_*() on the grounds that they don't handle X509
1783 structures and behave in an analagous way to the X509v3 functions:
1784 they shouldn't be called directly but wrapper functions should be used
1787 So we also now have some wrapper functions that call the X509at functions
1788 when passed certificate requests. (TO DO: similar things can be done with
1789 PKCS#7 signed and unsigned attributes, PKCS#12 attributes and a few other
1790 things. Some of these need some d2i or i2d and print functionality
1791 because they handle more complex structures.)
1794 *) Add missing #ifndefs that caused missing symbols when building libssl
1795 as a shared library without RSA. Use #ifndef NO_SSL2 instead of
1796 NO_RSA in ssl/s2*.c.
1797 [Kris Kennaway <kris@hub.freebsd.org>, modified by Ulf Möller]
1799 *) Precautions against using the PRNG uninitialized: RAND_bytes() now
1800 has a return value which indicates the quality of the random data
1801 (1 = ok, 0 = not seeded). Also an error is recorded on the thread's
1802 error queue. New function RAND_pseudo_bytes() generates output that is
1803 guaranteed to be unique but not unpredictable. RAND_add is like
1804 RAND_seed, but takes an extra argument for an entropy estimate
1805 (RAND_seed always assumes full entropy).
1808 *) Do more iterations of Rabin-Miller probable prime test (specifically,
1809 3 for 1024-bit primes, 6 for 512-bit primes, 12 for 256-bit primes
1810 instead of only 2 for all lengths; see BN_prime_checks_for_size definition
1811 in crypto/bn/bn_prime.c for the complete table). This guarantees a
1812 false-positive rate of at most 2^-80 for random input.
1815 *) Rewrite ssl3_read_n (ssl/s3_pkt.c) avoiding a couple of bugs.
1818 *) New function X509_CTX_rget_chain() (renamed to X509_CTX_get1_chain
1819 in the 0.9.5 release), this returns the chain
1820 from an X509_CTX structure with a dup of the stack and all
1821 the X509 reference counts upped: so the stack will exist
1822 after X509_CTX_cleanup() has been called. Modify pkcs12.c
1825 Also make SSL_SESSION_print() print out the verify return
1829 *) Add manpage for the pkcs12 command. Also change the default
1830 behaviour so MAC iteration counts are used unless the new
1831 -nomaciter option is used. This improves file security and
1832 only older versions of MSIE (4.0 for example) need it.
1835 *) Honor the no-xxx Configure options when creating .DEF files.
1838 *) Add PKCS#10 attributes to field table: challengePassword,
1839 unstructuredName and unstructuredAddress. These are taken from
1840 draft PKCS#9 v2.0 but are compatible with v1.2 provided no
1841 international characters are used.
1843 More changes to X509_ATTRIBUTE code: allow the setting of types
1844 based on strings. Remove the 'loc' parameter when adding
1845 attributes because these will be a SET OF encoding which is sorted
1849 *) Initial changes to the 'req' utility to allow request generation
1850 automation. This will allow an application to just generate a template
1851 file containing all the field values and have req construct the
1854 Initial support for X509_ATTRIBUTE handling. Stacks of these are
1855 used all over the place including certificate requests and PKCS#7
1856 structures. They are currently handled manually where necessary with
1857 some primitive wrappers for PKCS#7. The new functions behave in a
1858 manner analogous to the X509 extension functions: they allow
1859 attributes to be looked up by NID and added.
1861 Later something similar to the X509V3 code would be desirable to
1862 automatically handle the encoding, decoding and printing of the
1863 more complex types. The string types like challengePassword can
1864 be handled by the string table functions.
1866 Also modified the multi byte string table handling. Now there is
1867 a 'global mask' which masks out certain types. The table itself
1868 can use the flag STABLE_NO_MASK to ignore the mask setting: this
1869 is useful when for example there is only one permissible type
1870 (as in countryName) and using the mask might result in no valid
1874 *) Clean up 'Finished' handling, and add functions SSL_get_finished and
1875 SSL_get_peer_finished to allow applications to obtain the latest
1876 Finished messages sent to the peer or expected from the peer,
1877 respectively. (SSL_get_peer_finished is usually the Finished message
1878 actually received from the peer, otherwise the protocol will be aborted.)
1880 As the Finished message are message digests of the complete handshake
1881 (with a total of 192 bits for TLS 1.0 and more for SSL 3.0), they can
1882 be used for external authentication procedures when the authentication
1883 provided by SSL/TLS is not desired or is not enough.
1886 *) Enhanced support for Alpha Linux is added. Now ./config checks if
1887 the host supports BWX extension and if Compaq C is present on the
1888 $PATH. Just exploiting of the BWX extension results in 20-30%
1889 performance kick for some algorithms, e.g. DES and RC4 to mention
1890 a couple. Compaq C in turn generates ~20% faster code for MD5 and
1894 *) Add support for MS "fast SGC". This is arguably a violation of the
1895 SSL3/TLS protocol. Netscape SGC does two handshakes: the first with
1896 weak crypto and after checking the certificate is SGC a second one
1897 with strong crypto. MS SGC stops the first handshake after receiving
1898 the server certificate message and sends a second client hello. Since
1899 a server will typically do all the time consuming operations before
1900 expecting any further messages from the client (server key exchange
1901 is the most expensive) there is little difference between the two.
1903 To get OpenSSL to support MS SGC we have to permit a second client
1904 hello message after we have sent server done. In addition we have to
1905 reset the MAC if we do get this second client hello.
1908 *) Add a function 'd2i_AutoPrivateKey()' this will automatically decide
1909 if a DER encoded private key is RSA or DSA traditional format. Changed
1910 d2i_PrivateKey_bio() to use it. This is only needed for the "traditional"
1911 format DER encoded private key. Newer code should use PKCS#8 format which
1912 has the key type encoded in the ASN1 structure. Added DER private key
1913 support to pkcs8 application.
1916 *) SSL 3/TLS 1 servers now don't request certificates when an anonymous
1917 ciphersuites has been selected (as required by the SSL 3/TLS 1
1918 specifications). Exception: When SSL_VERIFY_FAIL_IF_NO_PEER_CERT
1919 is set, we interpret this as a request to violate the specification
1920 (the worst that can happen is a handshake failure, and 'correct'
1921 behaviour would result in a handshake failure anyway).
1924 *) In SSL_CTX_add_session, take into account that there might be multiple
1925 SSL_SESSION structures with the same session ID (e.g. when two threads
1926 concurrently obtain them from an external cache).
1927 The internal cache can handle only one SSL_SESSION with a given ID,
1928 so if there's a conflict, we now throw out the old one to achieve
1932 *) Add OIDs for idea and blowfish in CBC mode. This will allow both
1933 to be used in PKCS#5 v2.0 and S/MIME. Also add checking to
1934 some routines that use cipher OIDs: some ciphers do not have OIDs
1935 defined and so they cannot be used for S/MIME and PKCS#5 v2.0 for
1939 *) Simplify the trust setting structure and code. Now we just have
1940 two sequences of OIDs for trusted and rejected settings. These will
1941 typically have values the same as the extended key usage extension
1942 and any application specific purposes.
1944 The trust checking code now has a default behaviour: it will just
1945 check for an object with the same NID as the passed id. Functions can
1946 be provided to override either the default behaviour or the behaviour
1947 for a given id. SSL client, server and email already have functions
1948 in place for compatibility: they check the NID and also return "trusted"
1949 if the certificate is self signed.
1952 *) Add d2i,i2d bio/fp functions for PrivateKey: these convert the
1953 traditional format into an EVP_PKEY structure.
1956 *) Add a password callback function PEM_cb() which either prompts for
1957 a password if usr_data is NULL or otherwise assumes it is a null
1958 terminated password. Allow passwords to be passed on command line
1959 environment or config files in a few more utilities.
1962 *) Add a bunch of DER and PEM functions to handle PKCS#8 format private
1963 keys. Add some short names for PKCS#8 PBE algorithms and allow them
1964 to be specified on the command line for the pkcs8 and pkcs12 utilities.
1965 Update documentation.
1968 *) Support for ASN1 "NULL" type. This could be handled before by using
1969 ASN1_TYPE but there wasn't any function that would try to read a NULL
1970 and produce an error if it couldn't. For compatibility we also have
1971 ASN1_NULL_new() and ASN1_NULL_free() functions but these are faked and
1972 don't allocate anything because they don't need to.
1975 *) Initial support for MacOS is now provided. Examine INSTALL.MacOS
1977 [Andy Polyakov, Roy Woods <roy@centicsystems.ca>]
1979 *) Rebuild of the memory allocation routines used by OpenSSL code and
1980 possibly others as well. The purpose is to make an interface that
1981 provide hooks so anyone can build a separate set of allocation and
1982 deallocation routines to be used by OpenSSL, for example memory
1983 pool implementations, or something else, which was previously hard
1984 since Malloc(), Realloc() and Free() were defined as macros having
1985 the values malloc, realloc and free, respectively (except for Win32
1986 compilations). The same is provided for memory debugging code.
1987 OpenSSL already comes with functionality to find memory leaks, but
1988 this gives people a chance to debug other memory problems.
1990 With these changes, a new set of functions and macros have appeared:
1992 CRYPTO_set_mem_debug_functions() [F]
1993 CRYPTO_get_mem_debug_functions() [F]
1994 CRYPTO_dbg_set_options() [F]
1995 CRYPTO_dbg_get_options() [F]
1996 CRYPTO_malloc_debug_init() [M]
1998 The memory debug functions are NULL by default, unless the library
1999 is compiled with CRYPTO_MDEBUG or friends is defined. If someone
2000 wants to debug memory anyway, CRYPTO_malloc_debug_init() (which
2001 gives the standard debugging functions that come with OpenSSL) or
2002 CRYPTO_set_mem_debug_functions() (tells OpenSSL to use functions
2003 provided by the library user) must be used. When the standard
2004 debugging functions are used, CRYPTO_dbg_set_options can be used to
2005 request additional information:
2006 CRYPTO_dbg_set_options(V_CYRPTO_MDEBUG_xxx) corresponds to setting
2007 the CRYPTO_MDEBUG_xxx macro when compiling the library.
2009 Also, things like CRYPTO_set_mem_functions will always give the
2010 expected result (the new set of functions is used for allocation
2011 and deallocation) at all times, regardless of platform and compiler
2014 To finish it up, some functions that were never use in any other
2015 way than through macros have a new API and new semantic:
2018 CRYPTO_dbg_realloc()
2021 All macros of value have retained their old syntax.
2022 [Richard Levitte and Bodo Moeller]
2024 *) Some S/MIME fixes. The OID for SMIMECapabilities was wrong, the
2025 ordering of SMIMECapabilities wasn't in "strength order" and there
2026 was a missing NULL in the AlgorithmIdentifier for the SHA1 signature
2030 *) Some ASN1 types with illegal zero length encoding (INTEGER,
2031 ENUMERATED and OBJECT IDENTIFIER) choked the ASN1 routines.
2032 [Frans Heymans <fheymans@isaserver.be>, modified by Steve Henson]
2034 *) Merge in my S/MIME library for OpenSSL. This provides a simple
2035 S/MIME API on top of the PKCS#7 code, a MIME parser (with enough
2036 functionality to handle multipart/signed properly) and a utility
2037 called 'smime' to call all this stuff. This is based on code I
2038 originally wrote for Celo who have kindly allowed it to be
2039 included in OpenSSL.
2042 *) Add variants des_set_key_checked and des_set_key_unchecked of
2043 des_set_key (aka des_key_sched). Global variable des_check_key
2044 decides which of these is called by des_set_key; this way
2045 des_check_key behaves as it always did, but applications and
2046 the library itself, which was buggy for des_check_key == 1,
2047 have a cleaner way to pick the version they need.
2050 *) New function PKCS12_newpass() which changes the password of a
2054 *) Modify X509_TRUST and X509_PURPOSE so it also uses a static and
2055 dynamic mix. In both cases the ids can be used as an index into the
2056 table. Also modified the X509_TRUST_add() and X509_PURPOSE_add()
2057 functions so they accept a list of the field values and the
2058 application doesn't need to directly manipulate the X509_TRUST
2062 *) Modify the ASN1_STRING_TABLE stuff so it also uses bsearch and doesn't
2066 *) Modify the way the V3 extension code looks up extensions. This now
2067 works in a similar way to the object code: we have some "standard"
2068 extensions in a static table which is searched with OBJ_bsearch()
2069 and the application can add dynamic ones if needed. The file
2070 crypto/x509v3/ext_dat.h now has the info: this file needs to be
2071 updated whenever a new extension is added to the core code and kept
2072 in ext_nid order. There is a simple program 'tabtest.c' which checks
2073 this. New extensions are not added too often so this file can readily
2074 be maintained manually.
2076 There are two big advantages in doing things this way. The extensions
2077 can be looked up immediately and no longer need to be "added" using
2078 X509V3_add_standard_extensions(): this function now does nothing.
2079 [Side note: I get *lots* of email saying the extension code doesn't
2080 work because people forget to call this function]
2081 Also no dynamic allocation is done unless new extensions are added:
2082 so if we don't add custom extensions there is no need to call
2083 X509V3_EXT_cleanup().
2086 *) Modify enc utility's salting as follows: make salting the default. Add a
2087 magic header, so unsalted files fail gracefully instead of just decrypting
2088 to garbage. This is because not salting is a big security hole, so people
2089 should be discouraged from doing it.
2092 *) Fixes and enhancements to the 'x509' utility. It allowed a message
2093 digest to be passed on the command line but it only used this
2094 parameter when signing a certificate. Modified so all relevant
2095 operations are affected by the digest parameter including the
2096 -fingerprint and -x509toreq options. Also -x509toreq choked if a
2097 DSA key was used because it didn't fix the digest.
2100 *) Initial certificate chain verify code. Currently tests the untrusted
2101 certificates for consistency with the verify purpose (which is set
2102 when the X509_STORE_CTX structure is set up) and checks the pathlength.
2104 There is a NO_CHAIN_VERIFY compilation option to keep the old behaviour:
2105 this is because it will reject chains with invalid extensions whereas
2106 every previous version of OpenSSL and SSLeay made no checks at all.
2108 Trust code: checks the root CA for the relevant trust settings. Trust
2109 settings have an initial value consistent with the verify purpose: e.g.
2110 if the verify purpose is for SSL client use it expects the CA to be
2111 trusted for SSL client use. However the default value can be changed to
2112 permit custom trust settings: one example of this would be to only trust
2113 certificates from a specific "secure" set of CAs.
2115 Also added X509_STORE_CTX_new() and X509_STORE_CTX_free() functions
2116 which should be used for version portability: especially since the
2117 verify structure is likely to change more often now.
2119 SSL integration. Add purpose and trust to SSL_CTX and SSL and functions
2120 to set them. If not set then assume SSL clients will verify SSL servers
2123 Two new options to the verify program: -untrusted allows a set of
2124 untrusted certificates to be passed in and -purpose which sets the
2125 intended purpose of the certificate. If a purpose is set then the
2126 new chain verify code is used to check extension consistency.
2129 *) Support for the authority information access extension.
2132 *) Modify RSA and DSA PEM read routines to transparently handle
2133 PKCS#8 format private keys. New *_PUBKEY_* functions that handle
2134 public keys in a format compatible with certificate
2135 SubjectPublicKeyInfo structures. Unfortunately there were already
2136 functions called *_PublicKey_* which used various odd formats so
2137 these are retained for compatibility: however the DSA variants were
2138 never in a public release so they have been deleted. Changed dsa/rsa
2139 utilities to handle the new format: note no releases ever handled public
2140 keys so we should be OK.
2142 The primary motivation for this change is to avoid the same fiasco
2143 that dogs private keys: there are several incompatible private key
2144 formats some of which are standard and some OpenSSL specific and
2145 require various evil hacks to allow partial transparent handling and
2146 even then it doesn't work with DER formats. Given the option anything
2147 other than PKCS#8 should be dumped: but the other formats have to
2148 stay in the name of compatibility.
2150 With public keys and the benefit of hindsight one standard format
2151 is used which works with EVP_PKEY, RSA or DSA structures: though
2152 it clearly returns an error if you try to read the wrong kind of key.
2154 Added a -pubkey option to the 'x509' utility to output the public key.
2155 Also rename the EVP_PKEY_get_*() to EVP_PKEY_rget_*()
2156 (renamed to EVP_PKEY_get1_*() in the OpenSSL 0.9.5 release) and add
2157 EVP_PKEY_rset_*() functions (renamed to EVP_PKEY_set1_*())
2158 that do the same as the EVP_PKEY_assign_*() except they up the
2159 reference count of the added key (they don't "swallow" the
2163 *) Fixes to crypto/x509/by_file.c the code to read in certificates and
2164 CRLs would fail if the file contained no certificates or no CRLs:
2165 added a new function to read in both types and return the number
2166 read: this means that if none are read it will be an error. The
2167 DER versions of the certificate and CRL reader would always fail
2168 because it isn't possible to mix certificates and CRLs in DER format
2169 without choking one or the other routine. Changed this to just read
2170 a certificate: this is the best we can do. Also modified the code
2171 in apps/verify.c to take notice of return codes: it was previously
2172 attempting to read in certificates from NULL pointers and ignoring
2173 any errors: this is one reason why the cert and CRL reader seemed
2174 to work. It doesn't check return codes from the default certificate
2175 routines: these may well fail if the certificates aren't installed.
2178 *) Code to support otherName option in GeneralName.
2181 *) First update to verify code. Change the verify utility
2182 so it warns if it is passed a self signed certificate:
2183 for consistency with the normal behaviour. X509_verify
2184 has been modified to it will now verify a self signed
2185 certificate if *exactly* the same certificate appears
2186 in the store: it was previously impossible to trust a
2187 single self signed certificate. This means that:
2188 openssl verify ss.pem
2189 now gives a warning about a self signed certificate but
2190 openssl verify -CAfile ss.pem ss.pem
2194 *) For servers, store verify_result in SSL_SESSION data structure
2195 (and add it to external session representation).
2196 This is needed when client certificate verifications fails,
2197 but an application-provided verification callback (set by
2198 SSL_CTX_set_cert_verify_callback) allows accepting the session
2199 anyway (i.e. leaves x509_store_ctx->error != X509_V_OK
2200 but returns 1): When the session is reused, we have to set
2201 ssl->verify_result to the appropriate error code to avoid
2203 [Bodo Moeller, problem pointed out by Lutz Jaenicke]
2205 *) Fix a bug in the new PKCS#7 code: it didn't consider the
2206 case in PKCS7_dataInit() where the signed PKCS7 structure
2207 didn't contain any existing data because it was being created.
2208 [Po-Cheng Chen <pocheng@nst.com.tw>, slightly modified by Steve Henson]
2210 *) Add a salt to the key derivation routines in enc.c. This
2211 forms the first 8 bytes of the encrypted file. Also add a
2212 -S option to allow a salt to be input on the command line.
2215 *) New function X509_cmp(). Oddly enough there wasn't a function
2216 to compare two certificates. We do this by working out the SHA1
2217 hash and comparing that. X509_cmp() will be needed by the trust
2221 *) SSL_get1_session() is like SSL_get_session(), but increments
2222 the reference count in the SSL_SESSION returned.
2223 [Geoff Thorpe <geoff@eu.c2.net>]
2225 *) Fix for 'req': it was adding a null to request attributes.
2226 Also change the X509_LOOKUP and X509_INFO code to handle
2227 certificate auxiliary information.
2230 *) Add support for 40 and 64 bit RC2 and RC4 algorithms: document
2234 *) Add the possibility to add extra information to the memory leak
2235 detecting output, to form tracebacks, showing from where each
2236 allocation was originated: CRYPTO_push_info("constant string") adds
2237 the string plus current file name and line number to a per-thread
2238 stack, CRYPTO_pop_info() does the obvious, CRYPTO_remove_all_info()
2239 is like calling CYRPTO_pop_info() until the stack is empty.
2240 Also updated memory leak detection code to be multi-thread-safe.
2243 *) Add options -text and -noout to pkcs7 utility and delete the
2244 encryption options which never did anything. Update docs.
2247 *) Add options to some of the utilities to allow the pass phrase
2248 to be included on either the command line (not recommended on
2249 OSes like Unix) or read from the environment. Update the
2250 manpages and fix a few bugs.
2253 *) Add a few manpages for some of the openssl commands.
2256 *) Fix the -revoke option in ca. It was freeing up memory twice,
2257 leaking and not finding already revoked certificates.
2260 *) Extensive changes to support certificate auxiliary information.
2261 This involves the use of X509_CERT_AUX structure and X509_AUX
2262 functions. An X509_AUX function such as PEM_read_X509_AUX()
2263 can still read in a certificate file in the usual way but it
2264 will also read in any additional "auxiliary information". By
2265 doing things this way a fair degree of compatibility can be
2266 retained: existing certificates can have this information added
2267 using the new 'x509' options.
2269 Current auxiliary information includes an "alias" and some trust
2270 settings. The trust settings will ultimately be used in enhanced
2271 certificate chain verification routines: currently a certificate
2272 can only be trusted if it is self signed and then it is trusted
2276 *) Fix assembler for Alpha (tested only on DEC OSF not Linux or *BSD).
2277 The problem was that one of the replacement routines had not been working
2278 since SSLeay releases. For now the offending routine has been replaced
2279 with non-optimised assembler. Even so, this now gives around 95%
2280 performance improvement for 1024 bit RSA signs.
2283 *) Hack to fix PKCS#7 decryption when used with some unorthodox RC2
2284 handling. Most clients have the effective key size in bits equal to
2285 the key length in bits: so a 40 bit RC2 key uses a 40 bit (5 byte) key.
2286 A few however don't do this and instead use the size of the decrypted key
2287 to determine the RC2 key length and the AlgorithmIdentifier to determine
2288 the effective key length. In this case the effective key length can still
2289 be 40 bits but the key length can be 168 bits for example. This is fixed
2290 by manually forcing an RC2 key into the EVP_PKEY structure because the
2291 EVP code can't currently handle unusual RC2 key sizes: it always assumes
2292 the key length and effective key length are equal.
2295 *) Add a bunch of functions that should simplify the creation of
2296 X509_NAME structures. Now you should be able to do:
2297 X509_NAME_add_entry_by_txt(nm, "CN", MBSTRING_ASC, "Steve", -1, -1, 0);
2298 and have it automatically work out the correct field type and fill in
2299 the structures. The more adventurous can try:
2300 X509_NAME_add_entry_by_txt(nm, field, MBSTRING_UTF8, str, -1, -1, 0);
2301 and it will (hopefully) work out the correct multibyte encoding.
2304 *) Change the 'req' utility to use the new field handling and multibyte
2305 copy routines. Before the DN field creation was handled in an ad hoc
2306 way in req, ca, and x509 which was rather broken and didn't support
2307 BMPStrings or UTF8Strings. Since some software doesn't implement
2308 BMPStrings or UTF8Strings yet, they can be enabled using the config file
2309 using the dirstring_type option. See the new comment in the default
2310 openssl.cnf for more info.
2313 *) Make crypto/rand/md_rand.c more robust:
2314 - Assure unique random numbers after fork().
2315 - Make sure that concurrent threads access the global counter and
2316 md serializably so that we never lose entropy in them
2317 or use exactly the same state in multiple threads.
2318 Access to the large state is not always serializable because
2319 the additional locking could be a performance killer, and
2320 md should be large enough anyway.
2323 *) New file apps/app_rand.c with commonly needed functionality
2324 for handling the random seed file.
2326 Use the random seed file in some applications that previously did not:
2328 dsaparam -genkey (which also ignored its '-rand' option),
2331 x509 (when signing).
2332 Except on systems with /dev/urandom, it is crucial to have a random
2333 seed file at least for key creation, DSA signing, and for DH exchanges;
2334 for RSA signatures we could do without one.
2336 gendh and gendsa (unlike genrsa) used to read only the first byte
2337 of each file listed in the '-rand' option. The function as previously
2338 found in genrsa is now in app_rand.c and is used by all programs
2339 that support '-rand'.
2342 *) In RAND_write_file, use mode 0600 for creating files;
2343 don't just chmod when it may be too late.
2346 *) Report an error from X509_STORE_load_locations
2347 when X509_LOOKUP_load_file or X509_LOOKUP_add_dir failed.
2350 *) New function ASN1_mbstring_copy() this copies a string in either
2351 ASCII, Unicode, Universal (4 bytes per character) or UTF8 format
2352 into an ASN1_STRING type. A mask of permissible types is passed
2353 and it chooses the "minimal" type to use or an error if not type
2357 *) Add function equivalents to the various macros in asn1.h. The old
2358 macros are retained with an M_ prefix. Code inside the library can
2359 use the M_ macros. External code (including the openssl utility)
2360 should *NOT* in order to be "shared library friendly".
2363 *) Add various functions that can check a certificate's extensions
2364 to see if it usable for various purposes such as SSL client,
2365 server or S/MIME and CAs of these types. This is currently
2366 VERY EXPERIMENTAL but will ultimately be used for certificate chain
2367 verification. Also added a -purpose flag to x509 utility to
2368 print out all the purposes.
2371 *) Add a CRYPTO_EX_DATA to X509 certificate structure and associated
2375 *) New X509V3_{X509,CRL,REVOKED}_get_d2i() functions. These will search
2376 for, obtain and decode and extension and obtain its critical flag.
2377 This allows all the necessary extension code to be handled in a
2378 single function call.
2381 *) RC4 tune-up featuring 30-40% performance improvement on most RISC
2382 platforms. See crypto/rc4/rc4_enc.c for further details.
2385 *) New -noout option to asn1parse. This causes no output to be produced
2386 its main use is when combined with -strparse and -out to extract data
2387 from a file (which may not be in ASN.1 format).
2390 *) Fix for pkcs12 program. It was hashing an invalid certificate pointer
2391 when producing the local key id.
2392 [Richard Levitte <levitte@stacken.kth.se>]
2394 *) New option -dhparam in s_server. This allows a DH parameter file to be
2395 stated explicitly. If it is not stated then it tries the first server
2396 certificate file. The previous behaviour hard coded the filename
2400 *) Add -pubin and -pubout options to the rsa and dsa commands. These allow
2401 a public key to be input or output. For example:
2402 openssl rsa -in key.pem -pubout -out pubkey.pem
2403 Also added necessary DSA public key functions to handle this.
2406 *) Fix so PKCS7_dataVerify() doesn't crash if no certificates are contained
2407 in the message. This was handled by allowing
2408 X509_find_by_issuer_and_serial() to tolerate a NULL passed to it.
2409 [Steve Henson, reported by Sampo Kellomaki <sampo@mail.neuronio.pt>]
2411 *) Fix for bug in d2i_ASN1_bytes(): other ASN1 functions add an extra null
2412 to the end of the strings whereas this didn't. This would cause problems
2413 if strings read with d2i_ASN1_bytes() were later modified.
2414 [Steve Henson, reported by Arne Ansper <arne@ats.cyber.ee>]
2416 *) Fix for base64 decode bug. When a base64 bio reads only one line of
2417 data and it contains EOF it will end up returning an error. This is
2418 caused by input 46 bytes long. The cause is due to the way base64
2419 BIOs find the start of base64 encoded data. They do this by trying a
2420 trial decode on each line until they find one that works. When they
2421 do a flag is set and it starts again knowing it can pass all the
2422 data directly through the decoder. Unfortunately it doesn't reset
2423 the context it uses. This means that if EOF is reached an attempt
2424 is made to pass two EOFs through the context and this causes the
2425 resulting error. This can also cause other problems as well. As is
2426 usual with these problems it takes *ages* to find and the fix is
2427 trivial: move one line.
2428 [Steve Henson, reported by ian@uns.ns.ac.yu (Ivan Nejgebauer) ]
2430 *) Ugly workaround to get s_client and s_server working under Windows. The
2431 old code wouldn't work because it needed to select() on sockets and the
2432 tty (for keypresses and to see if data could be written). Win32 only
2433 supports select() on sockets so we select() with a 1s timeout on the
2434 sockets and then see if any characters are waiting to be read, if none
2435 are present then we retry, we also assume we can always write data to
2436 the tty. This isn't nice because the code then blocks until we've
2437 received a complete line of data and it is effectively polling the
2438 keyboard at 1s intervals: however it's quite a bit better than not
2439 working at all :-) A dedicated Windows application might handle this
2440 with an event loop for example.
2443 *) Enhance RSA_METHOD structure. Now there are two extra methods, rsa_sign
2444 and rsa_verify. When the RSA_FLAGS_SIGN_VER option is set these functions
2445 will be called when RSA_sign() and RSA_verify() are used. This is useful
2446 if rsa_pub_dec() and rsa_priv_enc() equivalents are not available.
2447 For this to work properly RSA_public_decrypt() and RSA_private_encrypt()
2448 should *not* be used: RSA_sign() and RSA_verify() must be used instead.
2449 This necessitated the support of an extra signature type NID_md5_sha1
2450 for SSL signatures and modifications to the SSL library to use it instead
2451 of calling RSA_public_decrypt() and RSA_private_encrypt().
2454 *) Add new -verify -CAfile and -CApath options to the crl program, these
2455 will lookup a CRL issuers certificate and verify the signature in a
2456 similar way to the verify program. Tidy up the crl program so it
2457 no longer accesses structures directly. Make the ASN1 CRL parsing a bit
2458 less strict. It will now permit CRL extensions even if it is not
2459 a V2 CRL: this will allow it to tolerate some broken CRLs.
2462 *) Initialize all non-automatic variables each time one of the openssl
2463 sub-programs is started (this is necessary as they may be started
2464 multiple times from the "OpenSSL>" prompt).
2465 [Lennart Bang, Bodo Moeller]
2467 *) Preliminary compilation option RSA_NULL which disables RSA crypto without
2468 removing all other RSA functionality (this is what NO_RSA does). This
2469 is so (for example) those in the US can disable those operations covered
2470 by the RSA patent while allowing storage and parsing of RSA keys and RSA
2474 *) Non-copying interface to BIO pairs.
2475 (still largely untested)
2478 *) New function ANS1_tag2str() to convert an ASN1 tag to a descriptive
2479 ASCII string. This was handled independently in various places before.
2482 *) New functions UTF8_getc() and UTF8_putc() that parse and generate
2483 UTF8 strings a character at a time.
2486 *) Use client_version from client hello to select the protocol
2487 (s23_srvr.c) and for RSA client key exchange verification
2488 (s3_srvr.c), as required by the SSL 3.0/TLS 1.0 specifications.
2491 *) Add various utility functions to handle SPKACs, these were previously
2492 handled by poking round in the structure internals. Added new function
2493 NETSCAPE_SPKI_print() to print out SPKAC and a new utility 'spkac' to
2494 print, verify and generate SPKACs. Based on an original idea from
2495 Massimiliano Pala <madwolf@comune.modena.it> but extensively modified.
2498 *) RIPEMD160 is operational on all platforms and is back in 'make test'.
2501 *) Allow the config file extension section to be overwritten on the
2502 command line. Based on an original idea from Massimiliano Pala
2503 <madwolf@comune.modena.it>. The new option is called -extensions
2504 and can be applied to ca, req and x509. Also -reqexts to override
2505 the request extensions in req and -crlexts to override the crl extensions
2509 *) Add new feature to the SPKAC handling in ca. Now you can include
2510 the same field multiple times by preceding it by "XXXX." for example:
2513 this is the same syntax as used in the req config file.
2516 *) Allow certificate extensions to be added to certificate requests. These
2517 are specified in a 'req_extensions' option of the req section of the
2518 config file. They can be printed out with the -text option to req but
2519 are otherwise ignored at present.
2522 *) Fix a horrible bug in enc_read() in crypto/evp/bio_enc.c: if the first
2523 data read consists of only the final block it would not decrypted because
2524 EVP_CipherUpdate() would correctly report zero bytes had been decrypted.
2525 A misplaced 'break' also meant the decrypted final block might not be
2526 copied until the next read.
2529 *) Initial support for DH_METHOD. Again based on RSA_METHOD. Also added
2530 a few extra parameters to the DH structure: these will be useful if
2531 for example we want the value of 'q' or implement X9.42 DH.
2534 *) Initial support for DSA_METHOD. This is based on the RSA_METHOD and
2535 provides hooks that allow the default DSA functions or functions on a
2536 "per key" basis to be replaced. This allows hardware acceleration and
2537 hardware key storage to be handled without major modification to the
2538 library. Also added low level modexp hooks and CRYPTO_EX structure and
2539 associated functions.
2542 *) Add a new flag to memory BIOs, BIO_FLAG_MEM_RDONLY. This marks the BIO
2543 as "read only": it can't be written to and the buffer it points to will
2544 not be freed. Reading from a read only BIO is much more efficient than
2545 a normal memory BIO. This was added because there are several times when
2546 an area of memory needs to be read from a BIO. The previous method was
2547 to create a memory BIO and write the data to it, this results in two
2548 copies of the data and an O(n^2) reading algorithm. There is a new
2549 function BIO_new_mem_buf() which creates a read only memory BIO from
2550 an area of memory. Also modified the PKCS#7 routines to use read only
2554 *) Bugfix: ssl23_get_client_hello did not work properly when called in
2555 state SSL23_ST_SR_CLNT_HELLO_B, i.e. when the first 7 bytes of
2556 a SSLv2-compatible client hello for SSLv3 or TLSv1 could be read,
2557 but a retry condition occured while trying to read the rest.
2560 *) The PKCS7_ENC_CONTENT_new() function was setting the content type as
2561 NID_pkcs7_encrypted by default: this was wrong since this should almost
2562 always be NID_pkcs7_data. Also modified the PKCS7_set_type() to handle
2563 the encrypted data type: this is a more sensible place to put it and it
2564 allows the PKCS#12 code to be tidied up that duplicated this
2568 *) Changed obj_dat.pl script so it takes its input and output files on
2569 the command line. This should avoid shell escape redirection problems
2573 *) Initial support for certificate extension requests, these are included
2574 in things like Xenroll certificate requests. Included functions to allow
2575 extensions to be obtained and added.
2578 *) -crlf option to s_client and s_server for sending newlines as
2579 CRLF (as required by many protocols).
2582 Changes between 0.9.3a and 0.9.4 [09 Aug 1999]
2584 *) Install libRSAglue.a when OpenSSL is built with RSAref.
2585 [Ralf S. Engelschall]
2587 *) A few more ``#ifndef NO_FP_API / #endif'' pairs for consistency.
2588 [Andrija Antonijevic <TheAntony2@bigfoot.com>]
2590 *) Fix -startdate and -enddate (which was missing) arguments to 'ca'
2594 *) New function DSA_dup_DH, which duplicates DSA parameters/keys as
2595 DH parameters/keys (q is lost during that conversion, but the resulting
2596 DH parameters contain its length).
2598 For 1024-bit p, DSA_generate_parameters followed by DSA_dup_DH is
2599 much faster than DH_generate_parameters (which creates parameters
2600 where p = 2*q + 1), and also the smaller q makes DH computations
2601 much more efficient (160-bit exponentiation instead of 1024-bit
2602 exponentiation); so this provides a convenient way to support DHE
2603 ciphersuites in SSL/TLS servers (see ssl/ssltest.c). It is of
2604 utter importance to use
2605 SSL_CTX_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
2607 SSL_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
2608 when such DH parameters are used, because otherwise small subgroup
2609 attacks may become possible!
2612 *) Avoid memory leak in i2d_DHparams.
2615 *) Allow the -k option to be used more than once in the enc program:
2616 this allows the same encrypted message to be read by multiple recipients.
2619 *) New function OBJ_obj2txt(buf, buf_len, a, no_name), this converts
2620 an ASN1_OBJECT to a text string. If the "no_name" parameter is set then
2621 it will always use the numerical form of the OID, even if it has a short
2625 *) Added an extra RSA flag: RSA_FLAG_EXT_PKEY. Previously the rsa_mod_exp
2626 method only got called if p,q,dmp1,dmq1,iqmp components were present,
2627 otherwise bn_mod_exp was called. In the case of hardware keys for example
2628 no private key components need be present and it might store extra data
2629 in the RSA structure, which cannot be accessed from bn_mod_exp.
2630 By setting RSA_FLAG_EXT_PKEY rsa_mod_exp will always be called for
2631 private key operations.
2634 *) Added support for SPARC Linux.
2637 *) pem_password_cb function type incompatibly changed from
2638 typedef int pem_password_cb(char *buf, int size, int rwflag);
2640 ....(char *buf, int size, int rwflag, void *userdata);
2641 so that applications can pass data to their callbacks:
2642 The PEM[_ASN1]_{read,write}... functions and macros now take an
2643 additional void * argument, which is just handed through whenever
2644 the password callback is called.
2645 [Damien Miller <dmiller@ilogic.com.au>; tiny changes by Bodo Moeller]
2647 New function SSL_CTX_set_default_passwd_cb_userdata.
2649 Compatibility note: As many C implementations push function arguments
2650 onto the stack in reverse order, the new library version is likely to
2651 interoperate with programs that have been compiled with the old
2652 pem_password_cb definition (PEM_whatever takes some data that
2653 happens to be on the stack as its last argument, and the callback
2654 just ignores this garbage); but there is no guarantee whatsoever that
2657 *) The -DPLATFORM="\"$(PLATFORM)\"" definition and the similar -DCFLAGS=...
2658 (both in crypto/Makefile.ssl for use by crypto/cversion.c) caused
2659 problems not only on Windows, but also on some Unix platforms.
2660 To avoid problematic command lines, these definitions are now in an
2661 auto-generated file crypto/buildinf.h (created by crypto/Makefile.ssl
2662 for standard "make" builds, by util/mk1mf.pl for "mk1mf" builds).
2665 *) MIPS III/IV assembler module is reimplemented.
2668 *) More DES library cleanups: remove references to srand/rand and
2669 delete an unused file.
2672 *) Add support for the the free Netwide assembler (NASM) under Win32,
2673 since not many people have MASM (ml) and it can be hard to obtain.
2674 This is currently experimental but it seems to work OK and pass all
2675 the tests. Check out INSTALL.W32 for info.
2678 *) Fix memory leaks in s3_clnt.c: All non-anonymous SSL3/TLS1 connections
2679 without temporary keys kept an extra copy of the server key,
2680 and connections with temporary keys did not free everything in case
2684 *) New function RSA_check_key and new openssl rsa option -check
2685 for verifying the consistency of RSA keys.
2686 [Ulf Moeller, Bodo Moeller]
2688 *) Various changes to make Win32 compile work:
2689 1. Casts to avoid "loss of data" warnings in p5_crpt2.c
2690 2. Change unsigned int to int in b_dump.c to avoid "signed/unsigned
2691 comparison" warnings.
2692 3. Add sk_<TYPE>_sort to DEF file generator and do make update.
2695 *) Add a debugging option to PKCS#5 v2 key generation function: when
2696 you #define DEBUG_PKCS5V2 passwords, salts, iteration counts and
2697 derived keys are printed to stderr.
2700 *) Copy the flags in ASN1_STRING_dup().
2701 [Roman E. Pavlov <pre@mo.msk.ru>]
2703 *) The x509 application mishandled signing requests containing DSA
2704 keys when the signing key was also DSA and the parameters didn't match.
2706 It was supposed to omit the parameters when they matched the signing key:
2707 the verifying software was then supposed to automatically use the CA's
2708 parameters if they were absent from the end user certificate.
2710 Omitting parameters is no longer recommended. The test was also
2711 the wrong way round! This was probably due to unusual behaviour in
2712 EVP_cmp_parameters() which returns 1 if the parameters match.
2713 This meant that parameters were omitted when they *didn't* match and
2714 the certificate was useless. Certificates signed with 'ca' didn't have
2716 [Steve Henson, reported by Doug Erickson <Doug.Erickson@Part.NET>]
2718 *) Memory leak checking (-DCRYPTO_MDEBUG) had some problems.
2719 The interface is as follows:
2720 Applications can use
2721 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON) aka MemCheck_start(),
2722 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_OFF) aka MemCheck_stop();
2723 "off" is now the default.
2724 The library internally uses
2725 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_DISABLE) aka MemCheck_off(),
2726 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ENABLE) aka MemCheck_on()
2727 to disable memory-checking temporarily.
2729 Some inconsistent states that previously were possible (and were
2730 even the default) are now avoided.
2732 -DCRYPTO_MDEBUG_TIME is new and additionally stores the current time
2733 with each memory chunk allocated; this is occasionally more helpful
2734 than just having a counter.
2736 -DCRYPTO_MDEBUG_THREAD is also new and adds the thread ID.
2738 -DCRYPTO_MDEBUG_ALL enables all of the above, plus any future
2742 *) Introduce "mode" for SSL structures (with defaults in SSL_CTX),
2743 which largely parallels "options", but is for changing API behaviour,
2744 whereas "options" are about protocol behaviour.
2745 Initial "mode" flags are:
2747 SSL_MODE_ENABLE_PARTIAL_WRITE Allow SSL_write to report success when
2748 a single record has been written.
2749 SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER Don't insist that SSL_write
2750 retries use the same buffer location.
2751 (But all of the contents must be
2755 *) Bugfix: SSL_set_mode ignored its parameter, only SSL_CTX_set_mode
2758 *) Fix problems with no-hmac etc.
2759 [Ulf Möller, pointed out by Brian Wellington <bwelling@tislabs.com>]
2761 *) New functions RSA_get_default_method(), RSA_set_method() and
2762 RSA_get_method(). These allows replacement of RSA_METHODs without having
2763 to mess around with the internals of an RSA structure.
2766 *) Fix memory leaks in DSA_do_sign and DSA_is_prime.
2767 Also really enable memory leak checks in openssl.c and in some
2769 [Chad C. Mulligan, Bodo Moeller]
2771 *) Fix a bug in d2i_ASN1_INTEGER() and i2d_ASN1_INTEGER() which can mess
2772 up the length of negative integers. This has now been simplified to just
2773 store the length when it is first determined and use it later, rather
2774 than trying to keep track of where data is copied and updating it to
2776 [Steve Henson, reported by Brien Wheeler
2777 <bwheeler@authentica-security.com>]
2779 *) Add a new function PKCS7_signatureVerify. This allows the verification
2780 of a PKCS#7 signature but with the signing certificate passed to the
2781 function itself. This contrasts with PKCS7_dataVerify which assumes the
2782 certificate is present in the PKCS#7 structure. This isn't always the
2783 case: certificates can be omitted from a PKCS#7 structure and be
2784 distributed by "out of band" means (such as a certificate database).
2787 *) Complete the PEM_* macros with DECLARE_PEM versions to replace the
2788 function prototypes in pem.h, also change util/mkdef.pl to add the
2789 necessary function names.
2792 *) mk1mf.pl (used by Windows builds) did not properly read the
2793 options set by Configure in the top level Makefile, and Configure
2794 was not even able to write more than one option correctly.
2795 Fixed, now "no-idea no-rc5 -DCRYPTO_MDEBUG" etc. works as intended.
2798 *) New functions CONF_load_bio() and CONF_load_fp() to allow a config
2799 file to be loaded from a BIO or FILE pointer. The BIO version will
2800 for example allow memory BIOs to contain config info.
2803 *) New function "CRYPTO_num_locks" that returns CRYPTO_NUM_LOCKS.
2804 Whoever hopes to achieve shared-library compatibility across versions
2805 must use this, not the compile-time macro.
2806 (Exercise 0.9.4: Which is the minimum library version required by
2808 Note: All this applies only to multi-threaded programs, others don't
2812 *) Add missing case to s3_clnt.c state machine -- one of the new SSL tests
2813 through a BIO pair triggered the default case, i.e.
2814 SSLerr(...,SSL_R_UNKNOWN_STATE).
2817 *) New "BIO pair" concept (crypto/bio/bss_bio.c) so that applications
2818 can use the SSL library even if none of the specific BIOs is
2822 *) Fix a bug in i2d_DSAPublicKey() which meant it returned the wrong value
2823 for the encoded length.
2824 [Jeon KyoungHo <khjeon@sds.samsung.co.kr>]
2826 *) Add initial documentation of the X509V3 functions.
2829 *) Add a new pair of functions PEM_write_PKCS8PrivateKey() and
2830 PEM_write_bio_PKCS8PrivateKey() that are equivalent to
2831 PEM_write_PrivateKey() and PEM_write_bio_PrivateKey() but use the more
2832 secure PKCS#8 private key format with a high iteration count.
2835 *) Fix determination of Perl interpreter: A perl or perl5
2836 _directory_ in $PATH was also accepted as the interpreter.
2837 [Ralf S. Engelschall]
2839 *) Fix demos/sign/sign.c: well there wasn't anything strictly speaking
2840 wrong with it but it was very old and did things like calling
2841 PEM_ASN1_read() directly and used MD5 for the hash not to mention some
2845 *) Fix demos/selfsign.c: it used obsolete and deleted functions, changed
2846 to use the new extension code.
2849 *) Implement the PEM_read/PEM_write functions in crypto/pem/pem_all.c
2850 with macros. This should make it easier to change their form, add extra
2851 arguments etc. Fix a few PEM prototypes which didn't have cipher as a
2855 *) Add to configuration table a new entry that can specify an alternative
2856 name for unistd.h (for pre-POSIX systems); we need this for NeXTstep,
2857 according to Mark Crispin <MRC@Panda.COM>.
2861 *) DES CBC did not update the IV. Weird.
2864 des_cbc_encrypt does not update the IV, but des_ncbc_encrypt does.
2865 Changing the behaviour of the former might break existing programs --
2866 where IV updating is needed, des_ncbc_encrypt can be used.
2869 *) When bntest is run from "make test" it drives bc to check its
2870 calculations, as well as internally checking them. If an internal check
2871 fails, it needs to cause bc to give a non-zero result or make test carries
2872 on without noticing the failure. Fixed.
2875 *) DES library cleanups.
2878 *) Add support for PKCS#5 v2.0 PBE algorithms. This will permit PKCS#8 to be
2879 used with any cipher unlike PKCS#5 v1.5 which can at most handle 64 bit
2880 ciphers. NOTE: although the key derivation function has been verified
2881 against some published test vectors it has not been extensively tested
2882 yet. Added a -v2 "cipher" option to pkcs8 application to allow the use
2886 *) Instead of "mkdir -p", which is not fully portable, use new
2887 Perl script "util/mkdir-p.pl".
2890 *) Rewrite the way password based encryption (PBE) is handled. It used to
2891 assume that the ASN1 AlgorithmIdentifier parameter was a PBEParameter
2892 structure. This was true for the PKCS#5 v1.5 and PKCS#12 PBE algorithms
2893 but doesn't apply to PKCS#5 v2.0 where it can be something else. Now
2894 the 'parameter' field of the AlgorithmIdentifier is passed to the
2895 underlying key generation function so it must do its own ASN1 parsing.
2896 This has also changed the EVP_PBE_CipherInit() function which now has a
2897 'parameter' argument instead of literal salt and iteration count values
2898 and the function EVP_PBE_ALGOR_CipherInit() has been deleted.
2901 *) Support for PKCS#5 v1.5 compatible password based encryption algorithms
2902 and PKCS#8 functionality. New 'pkcs8' application linked to openssl.
2903 Needed to change the PEM_STRING_EVP_PKEY value which was just "PRIVATE
2904 KEY" because this clashed with PKCS#8 unencrypted string. Since this
2905 value was just used as a "magic string" and not used directly its
2906 value doesn't matter.
2909 *) Introduce some semblance of const correctness to BN. Shame C doesn't
2913 *) "linux-sparc64" configuration (ultrapenguin).
2914 [Ray Miller <ray.miller@oucs.ox.ac.uk>]
2915 "linux-sparc" configuration.
2916 [Christian Forster <fo@hawo.stw.uni-erlangen.de>]
2918 *) config now generates no-xxx options for missing ciphers.
2921 *) Support the EBCDIC character set (work in progress).
2922 File ebcdic.c not yet included because it has a different license.
2923 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
2925 *) Support BS2000/OSD-POSIX.
2926 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
2928 *) Make callbacks for key generation use void * instead of char *.
2931 *) Make S/MIME samples compile (not yet tested).
2934 *) Additional typesafe stacks.
2937 *) New configuration variants "bsdi-elf-gcc" (BSD/OS 4.x).
2941 Changes between 0.9.3 and 0.9.3a [29 May 1999]
2943 *) New configuration variant "sco5-gcc".
2945 *) Updated some demos.
2946 [Sean O Riordain, Wade Scholine]
2948 *) Add missing BIO_free at exit of pkcs12 application.
2951 *) Fix memory leak in conf.c.
2954 *) Updates for Win32 to assembler version of MD5.
2957 *) Set #! path to perl in apps/der_chop to where we found it
2958 instead of using a fixed path.
2961 *) SHA library changes for irix64-mips4-cc.
2964 *) Improvements for VMS support.
2968 Changes between 0.9.2b and 0.9.3 [24 May 1999]
2970 *) Bignum library bug fix. IRIX 6 passes "make test" now!
2971 This also avoids the problems with SC4.2 and unpatched SC5.
2972 [Andy Polyakov <appro@fy.chalmers.se>]
2974 *) New functions sk_num, sk_value and sk_set to replace the previous macros.
2975 These are required because of the typesafe stack would otherwise break
2976 existing code. If old code used a structure member which used to be STACK
2977 and is now STACK_OF (for example cert in a PKCS7_SIGNED structure) with
2978 sk_num or sk_value it would produce an error because the num, data members
2979 are not present in STACK_OF. Now it just produces a warning. sk_set
2980 replaces the old method of assigning a value to sk_value
2981 (e.g. sk_value(x, i) = y) which the library used in a few cases. Any code
2982 that does this will no longer work (and should use sk_set instead) but
2983 this could be regarded as a "questionable" behaviour anyway.
2986 *) Fix most of the other PKCS#7 bugs. The "experimental" code can now
2987 correctly handle encrypted S/MIME data.
2990 *) Change type of various DES function arguments from des_cblock
2991 (which means, in function argument declarations, pointer to char)
2992 to des_cblock * (meaning pointer to array with 8 char elements),
2993 which allows the compiler to do more typechecking; it was like
2994 that back in SSLeay, but with lots of ugly casts.
2996 Introduce new type const_des_cblock.
2999 *) Reorganise the PKCS#7 library and get rid of some of the more obvious
3000 problems: find RecipientInfo structure that matches recipient certificate
3001 and initialise the ASN1 structures properly based on passed cipher.
3004 *) Belatedly make the BN tests actually check the results.
3007 *) Fix the encoding and decoding of negative ASN1 INTEGERS and conversion
3008 to and from BNs: it was completely broken. New compilation option
3009 NEG_PUBKEY_BUG to allow for some broken certificates that encode public
3010 key elements as negative integers.
3013 *) Reorganize and speed up MD5.
3014 [Andy Polyakov <appro@fy.chalmers.se>]
3017 [Richard Levitte <richard@levitte.org>]
3019 *) New option -out to asn1parse to allow the parsed structure to be
3020 output to a file. This is most useful when combined with the -strparse
3021 option to examine the output of things like OCTET STRINGS.
3024 *) Make SSL library a little more fool-proof by not requiring any longer
3025 that SSL_set_{accept,connect}_state be called before
3026 SSL_{accept,connect} may be used (SSL_set_..._state is omitted
3027 in many applications because usually everything *appeared* to work as
3028 intended anyway -- now it really works as intended).
3031 *) Move openssl.cnf out of lib/.
3034 *) Fix various things to let OpenSSL even pass ``egcc -pipe -O2 -Wall
3035 -Wshadow -Wpointer-arith -Wcast-align -Wmissing-prototypes
3036 -Wmissing-declarations -Wnested-externs -Winline'' with EGCS 1.1.2+
3037 [Ralf S. Engelschall]
3039 *) Various fixes to the EVP and PKCS#7 code. It may now be able to
3040 handle PKCS#7 enveloped data properly.
3041 [Sebastian Akerman <sak@parallelconsulting.com>, modified by Steve]
3043 *) Create a duplicate of the SSL_CTX's CERT in SSL_new instead of
3044 copying pointers. The cert_st handling is changed by this in
3045 various ways (and thus what used to be known as ctx->default_cert
3046 is now called ctx->cert, since we don't resort to s->ctx->[default_]cert
3047 any longer when s->cert does not give us what we need).
3048 ssl_cert_instantiate becomes obsolete by this change.
3049 As soon as we've got the new code right (possibly it already is?),
3050 we have solved a couple of bugs of the earlier code where s->cert
3051 was used as if it could not have been shared with other SSL structures.
3053 Note that using the SSL API in certain dirty ways now will result
3054 in different behaviour than observed with earlier library versions:
3055 Changing settings for an SSL_CTX *ctx after having done s = SSL_new(ctx)
3056 does not influence s as it used to.
3058 In order to clean up things more thoroughly, inside SSL_SESSION
3059 we don't use CERT any longer, but a new structure SESS_CERT
3060 that holds per-session data (if available); currently, this is
3061 the peer's certificate chain and, for clients, the server's certificate
3062 and temporary key. CERT holds only those values that can have
3063 meaningful defaults in an SSL_CTX.
3066 *) New function X509V3_EXT_i2d() to create an X509_EXTENSION structure
3067 from the internal representation. Various PKCS#7 fixes: remove some
3068 evil casts and set the enc_dig_alg field properly based on the signing
3072 *) Allow PKCS#12 password to be set from the command line or the
3073 environment. Let 'ca' get its config file name from the environment
3074 variables "OPENSSL_CONF" or "SSLEAY_CONF" (for consistency with 'req'
3078 *) Allow certificate policies extension to use an IA5STRING for the
3079 organization field. This is contrary to the PKIX definition but
3080 VeriSign uses it and IE5 only recognises this form. Document 'x509'
3084 *) Add PEDANTIC compiler flag to allow compilation with gcc -pedantic,
3085 without disallowing inline assembler and the like for non-pedantic builds.
3088 *) Support Borland C++ builder.
3089 [Janez Jere <jj@void.si>, modified by Ulf Möller]
3094 *) SHA-1 cleanups and performance enhancements.
3095 [Andy Polyakov <appro@fy.chalmers.se>]
3097 *) Sparc v8plus assembler for the bignum library.
3098 [Andy Polyakov <appro@fy.chalmers.se>]
3100 *) Accept any -xxx and +xxx compiler options in Configure.
3103 *) Update HPUX configuration.
3106 *) Add missing sk_<type>_unshift() function to safestack.h
3107 [Ralf S. Engelschall]
3109 *) New function SSL_CTX_use_certificate_chain_file that sets the
3110 "extra_cert"s in addition to the certificate. (This makes sense
3111 only for "PEM" format files, as chains as a whole are not
3115 *) Support verify_depth from the SSL API.
3116 x509_vfy.c had what can be considered an off-by-one-error:
3117 Its depth (which was not part of the external interface)
3118 was actually counting the number of certificates in a chain;
3119 now it really counts the depth.
3122 *) Bugfix in crypto/x509/x509_cmp.c: The SSLerr macro was used
3123 instead of X509err, which often resulted in confusing error
3124 messages since the error codes are not globally unique
3125 (e.g. an alleged error in ssl3_accept when a certificate
3126 didn't match the private key).
3128 *) New function SSL_CTX_set_session_id_context that allows to set a default
3129 value (so that you don't need SSL_set_session_id_context for each
3130 connection using the SSL_CTX).
3133 *) OAEP decoding bug fix.
3136 *) Support INSTALL_PREFIX for package builders, as proposed by
3140 *) New Configure options "threads" and "no-threads". For systems
3141 where the proper compiler options are known (currently Solaris
3142 and Linux), "threads" is the default.
3145 *) New script util/mklink.pl as a faster substitute for util/mklink.sh.
3148 *) Install various scripts to $(OPENSSLDIR)/misc, not to
3149 $(INSTALLTOP)/bin -- they shouldn't clutter directories
3150 such as /usr/local/bin.
3153 *) "make linux-shared" to build shared libraries.
3154 [Niels Poppe <niels@netbox.org>]
3156 *) New Configure option no-<cipher> (rsa, idea, rc5, ...).
3159 *) Add the PKCS#12 API documentation to openssl.txt. Preliminary support for
3160 extension adding in x509 utility.
3163 *) Remove NOPROTO sections and error code comments.
3166 *) Partial rewrite of the DEF file generator to now parse the ANSI
3170 *) New Configure options --prefix=DIR and --openssldir=DIR.
3173 *) Complete rewrite of the error code script(s). It is all now handled
3174 by one script at the top level which handles error code gathering,
3175 header rewriting and C source file generation. It should be much better
3176 than the old method: it now uses a modified version of Ulf's parser to
3177 read the ANSI prototypes in all header files (thus the old K&R definitions
3178 aren't needed for error creation any more) and do a better job of
3179 translating function codes into names. The old 'ASN1 error code imbedded
3180 in a comment' is no longer necessary and it doesn't use .err files which
3181 have now been deleted. Also the error code call doesn't have to appear all
3182 on one line (which resulted in some large lines...).
3185 *) Change #include filenames from <foo.h> to <openssl/foo.h>.
3188 *) Change behaviour of ssl2_read when facing length-0 packets: Don't return
3189 0 (which usually indicates a closed connection), but continue reading.
3192 *) Fix some race conditions.
3195 *) Add support for CRL distribution points extension. Add Certificate
3196 Policies and CRL distribution points documentation.
3199 *) Move the autogenerated header file parts to crypto/opensslconf.h.
3202 *) Fix new 56-bit DES export ciphersuites: they were using 7 bytes instead of
3203 8 of keying material. Merlin has also confirmed interop with this fix
3204 between OpenSSL and Baltimore C/SSL 2.0 and J/SSL 2.0.
3205 [Merlin Hughes <merlin@baltimore.ie>]
3207 *) Fix lots of warnings.
3208 [Richard Levitte <levitte@stacken.kth.se>]
3210 *) In add_cert_dir() in crypto/x509/by_dir.c, break out of the loop if
3211 the directory spec didn't end with a LIST_SEPARATOR_CHAR.
3212 [Richard Levitte <levitte@stacken.kth.se>]
3214 *) Fix problems with sizeof(long) == 8.
3215 [Andy Polyakov <appro@fy.chalmers.se>]
3217 *) Change functions to ANSI C.
3220 *) Fix typos in error codes.
3221 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>, Ulf Möller]
3223 *) Remove defunct assembler files from Configure.
3226 *) SPARC v8 assembler BIGNUM implementation.
3227 [Andy Polyakov <appro@fy.chalmers.se>]
3229 *) Support for Certificate Policies extension: both print and set.
3230 Various additions to support the r2i method this uses.
3233 *) A lot of constification, and fix a bug in X509_NAME_oneline() that could
3234 return a const string when you are expecting an allocated buffer.
3237 *) Add support for ASN1 types UTF8String and VISIBLESTRING, also the CHOICE
3238 types DirectoryString and DisplayText.
3241 *) Add code to allow r2i extensions to access the configuration database,
3242 add an LHASH database driver and add several ctx helper functions.
3245 *) Fix an evil bug in bn_expand2() which caused various BN functions to
3246 fail when they extended the size of a BIGNUM.
3249 *) Various utility functions to handle SXNet extension. Modify mkdef.pl to
3250 support typesafe stack.
3253 *) Fix typo in SSL_[gs]et_options().
3254 [Nils Frostberg <nils@medcom.se>]
3256 *) Delete various functions and files that belonged to the (now obsolete)
3257 old X509V3 handling code.
3260 *) New Configure option "rsaref".
3263 *) Don't auto-generate pem.h.
3266 *) Introduce type-safe ASN.1 SETs.
3269 *) Convert various additional casted stacks to type-safe STACK_OF() variants.
3270 [Ben Laurie, Ralf S. Engelschall, Steve Henson]
3272 *) Introduce type-safe STACKs. This will almost certainly break lots of code
3273 that links with OpenSSL (well at least cause lots of warnings), but fear
3274 not: the conversion is trivial, and it eliminates loads of evil casts. A
3275 few STACKed things have been converted already. Feel free to convert more.
3276 In the fullness of time, I'll do away with the STACK type altogether.
3279 *) Add `openssl ca -revoke <certfile>' facility which revokes a certificate
3280 specified in <certfile> by updating the entry in the index.txt file.
3281 This way one no longer has to edit the index.txt file manually for
3282 revoking a certificate. The -revoke option does the gory details now.
3283 [Massimiliano Pala <madwolf@openca.org>, Ralf S. Engelschall]
3285 *) Fix `openssl crl -noout -text' combination where `-noout' killed the
3286 `-text' option at all and this way the `-noout -text' combination was
3287 inconsistent in `openssl crl' with the friends in `openssl x509|rsa|dsa'.
3288 [Ralf S. Engelschall]
3290 *) Make sure a corresponding plain text error message exists for the
3291 X509_V_ERR_CERT_REVOKED/23 error number which can occur when a
3292 verify callback function determined that a certificate was revoked.
3293 [Ralf S. Engelschall]
3295 *) Bugfix: In test/testenc, don't test "openssl <cipher>" for
3296 ciphers that were excluded, e.g. by -DNO_IDEA. Also, test
3297 all available cipers including rc5, which was forgotten until now.
3298 In order to let the testing shell script know which algorithms
3299 are available, a new (up to now undocumented) command
3300 "openssl list-cipher-commands" is used.
3303 *) Bugfix: s_client occasionally would sleep in select() when
3304 it should have checked SSL_pending() first.
3307 *) New functions DSA_do_sign and DSA_do_verify to provide access to
3308 the raw DSA values prior to ASN.1 encoding.
3311 *) Tweaks to Configure
3312 [Niels Poppe <niels@netbox.org>]
3314 *) Add support for PKCS#5 v2.0 ASN1 PBES2 structures. No other support,
3318 *) New variables $(RANLIB) and $(PERL) in the Makefiles.
3321 *) New config option to avoid instructions that are illegal on the 80386.
3322 The default code is faster, but requires at least a 486.
3325 *) Got rid of old SSL2_CLIENT_VERSION (inconsistently used) and
3326 SSL2_SERVER_VERSION (not used at all) macros, which are now the
3327 same as SSL2_VERSION anyway.
3330 *) New "-showcerts" option for s_client.
3333 *) Still more PKCS#12 integration. Add pkcs12 application to openssl
3334 application. Various cleanups and fixes.
3337 *) More PKCS#12 integration. Add new pkcs12 directory with Makefile.ssl and
3338 modify error routines to work internally. Add error codes and PBE init
3339 to library startup routines.
3342 *) Further PKCS#12 integration. Added password based encryption, PKCS#8 and
3343 packing functions to asn1 and evp. Changed function names and error
3344 codes along the way.
3347 *) PKCS12 integration: and so it begins... First of several patches to
3348 slowly integrate PKCS#12 functionality into OpenSSL. Add PKCS#12
3349 objects to objects.h
3352 *) Add a new 'indent' option to some X509V3 extension code. Initial ASN1
3353 and display support for Thawte strong extranet extension.
3356 *) Add LinuxPPC support.
3357 [Jeff Dubrule <igor@pobox.org>]
3359 *) Get rid of redundant BN file bn_mulw.c, and rename bn_div64 to
3360 bn_div_words in alpha.s.
3361 [Hannes Reinecke <H.Reinecke@hw.ac.uk> and Ben Laurie]
3363 *) Make sure the RSA OAEP test is skipped under -DRSAref because
3364 OAEP isn't supported when OpenSSL is built with RSAref.
3365 [Ulf Moeller <ulf@fitug.de>]
3367 *) Move definitions of IS_SET/IS_SEQUENCE inside crypto/asn1/asn1.h
3368 so they no longer are missing under -DNOPROTO.
3369 [Soren S. Jorvang <soren@t.dk>]
3372 Changes between 0.9.1c and 0.9.2b [22 Mar 1999]
3374 *) Make SSL_get_peer_cert_chain() work in servers. Unfortunately, it still
3375 doesn't work when the session is reused. Coming soon!
3378 *) Fix a security hole, that allows sessions to be reused in the wrong
3379 context thus bypassing client cert protection! All software that uses
3380 client certs and session caches in multiple contexts NEEDS PATCHING to
3381 allow session reuse! A fuller solution is in the works.
3382 [Ben Laurie, problem pointed out by Holger Reif, Bodo Moeller (and ???)]
3384 *) Some more source tree cleanups (removed obsolete files
3385 crypto/bf/asm/bf586.pl, test/test.txt and crypto/sha/asm/f.s; changed
3386 permission on "config" script to be executable) and a fix for the INSTALL
3388 [Ulf Moeller <ulf@fitug.de>]
3390 *) Remove some legacy and erroneous uses of malloc, free instead of
3392 [Lennart Bang <lob@netstream.se>, with minor changes by Steve]
3394 *) Make rsa_oaep_test return non-zero on error.
3395 [Ulf Moeller <ulf@fitug.de>]
3397 *) Add support for native Solaris shared libraries. Configure
3398 solaris-sparc-sc4-pic, make, then run shlib/solaris-sc4.sh. It'd be nice
3399 if someone would make that last step automatic.
3400 [Matthias Loepfe <Matthias.Loepfe@AdNovum.CH>]
3402 *) ctx_size was not built with the right compiler during "make links". Fixed.
3405 *) Change the meaning of 'ALL' in the cipher list. It now means "everything
3406 except NULL ciphers". This means the default cipher list will no longer
3407 enable NULL ciphers. They need to be specifically enabled e.g. with
3408 the string "DEFAULT:eNULL".
3411 *) Fix to RSA private encryption routines: if p < q then it would
3412 occasionally produce an invalid result. This will only happen with
3413 externally generated keys because OpenSSL (and SSLeay) ensure p > q.
3416 *) Be less restrictive and allow also `perl util/perlpath.pl
3417 /path/to/bin/perl' in addition to `perl util/perlpath.pl /path/to/bin',
3418 because this way one can also use an interpreter named `perl5' (which is
3419 usually the name of Perl 5.xxx on platforms where an Perl 4.x is still
3420 installed as `perl').
3421 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
3423 *) Let util/clean-depend.pl work also with older Perl 5.00x versions.
3424 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
3426 *) Fix Makefile.org so CC,CFLAG etc are passed to 'make links' add
3427 advapi32.lib to Win32 build and change the pem test comparision
3428 to fc.exe (thanks to Ulrich Kroener <kroneru@yahoo.com> for the
3429 suggestion). Fix misplaced ASNI prototypes and declarations in evp.h
3430 and crypto/des/ede_cbcm_enc.c.
3433 *) DES quad checksum was broken on big-endian architectures. Fixed.
3436 *) Comment out two functions in bio.h that aren't implemented. Fix up the
3437 Win32 test batch file so it (might) work again. The Win32 test batch file
3438 is horrible: I feel ill....
3441 *) Move various #ifdefs around so NO_SYSLOG, NO_DIRENT etc are now selected
3442 in e_os.h. Audit of header files to check ANSI and non ANSI
3443 sections: 10 functions were absent from non ANSI section and not exported
3444 from Windows DLLs. Fixed up libeay.num for new functions.
3447 *) Make `openssl version' output lines consistent.
3448 [Ralf S. Engelschall]
3450 *) Fix Win32 symbol export lists for BIO functions: Added
3451 BIO_get_ex_new_index, BIO_get_ex_num, BIO_get_ex_data and BIO_set_ex_data
3452 to ms/libeay{16,32}.def.
3453 [Ralf S. Engelschall]
3455 *) Second round of fixing the OpenSSL perl/ stuff. It now at least compiled
3456 fine under Unix and passes some trivial tests I've now added. But the
3457 whole stuff is horribly incomplete, so a README.1ST with a disclaimer was
3458 added to make sure no one expects that this stuff really works in the
3459 OpenSSL 0.9.2 release. Additionally I've started to clean the XS sources
3460 up and fixed a few little bugs and inconsistencies in OpenSSL.{pm,xs} and
3462 [Ralf S. Engelschall]
3464 *) Fix the generation of two part addresses in perl.
3465 [Kenji Miyake <kenji@miyake.org>, integrated by Ben Laurie]
3467 *) Add config entry for Linux on MIPS.
3468 [John Tobey <jtobey@channel1.com>]
3470 *) Make links whenever Configure is run, unless we are on Windoze.
3473 *) Permit extensions to be added to CRLs using crl_section in openssl.cnf.
3474 Currently only issuerAltName and AuthorityKeyIdentifier make any sense
3478 *) Add a useful kludge to allow package maintainers to specify compiler and
3479 other platforms details on the command line without having to patch the
3480 Configure script everytime: One now can use ``perl Configure
3481 <id>:<details>'', i.e. platform ids are allowed to have details appended
3482 to them (seperated by colons). This is treated as there would be a static
3483 pre-configured entry in Configure's %table under key <id> with value
3484 <details> and ``perl Configure <id>'' is called. So, when you want to
3485 perform a quick test-compile under FreeBSD 3.1 with pgcc and without
3486 assembler stuff you can use ``perl Configure "FreeBSD-elf:pgcc:-O6:::"''
3487 now, which overrides the FreeBSD-elf entry on-the-fly.
3488 [Ralf S. Engelschall]
3490 *) Disable new TLS1 ciphersuites by default: they aren't official yet.
3493 *) Allow DSO flags like -fpic, -fPIC, -KPIC etc. to be specified
3494 on the `perl Configure ...' command line. This way one can compile
3495 OpenSSL libraries with Position Independent Code (PIC) which is needed
3496 for linking it into DSOs.
3497 [Ralf S. Engelschall]
3499 *) Remarkably, export ciphers were totally broken and no-one had noticed!
3503 *) Cleaned up the LICENSE document: The official contact for any license
3504 questions now is the OpenSSL core team under openssl-core@openssl.org.
3505 And add a paragraph about the dual-license situation to make sure people
3506 recognize that _BOTH_ the OpenSSL license _AND_ the SSLeay license apply
3507 to the OpenSSL toolkit.
3508 [Ralf S. Engelschall]
3510 *) General source tree makefile cleanups: Made `making xxx in yyy...'
3511 display consistent in the source tree and replaced `/bin/rm' by `rm'.
3512 Additonally cleaned up the `make links' target: Remove unnecessary
3513 semicolons, subsequent redundant removes, inline point.sh into mklink.sh
3514 to speed processing and no longer clutter the display with confusing
3515 stuff. Instead only the actually done links are displayed.
3516 [Ralf S. Engelschall]
3518 *) Permit null encryption ciphersuites, used for authentication only. It used
3519 to be necessary to set the preprocessor define SSL_ALLOW_ENULL to do this.
3520 It is now necessary to set SSL_FORBID_ENULL to prevent the use of null
3524 *) Add a bunch of fixes to the PKCS#7 stuff. It used to sometimes reorder
3525 signed attributes when verifying signatures (this would break them),
3526 the detached data encoding was wrong and public keys obtained using
3527 X509_get_pubkey() weren't freed.
3530 *) Add text documentation for the BUFFER functions. Also added a work around
3531 to a Win95 console bug. This was triggered by the password read stuff: the
3532 last character typed gets carried over to the next fread(). If you were
3533 generating a new cert request using 'req' for example then the last
3534 character of the passphrase would be CR which would then enter the first
3538 *) Added the new `Includes OpenSSL Cryptography Software' button as
3539 doc/openssl_button.{gif,html} which is similar in style to the old SSLeay
3540 button and can be used by applications based on OpenSSL to show the
3541 relationship to the OpenSSL project.
3542 [Ralf S. Engelschall]
3544 *) Remove confusing variables in function signatures in files
3545 ssl/ssl_lib.c and ssl/ssl.h.
3546 [Lennart Bong <lob@kulthea.stacken.kth.se>]
3548 *) Don't install bss_file.c under PREFIX/include/
3549 [Lennart Bong <lob@kulthea.stacken.kth.se>]
3551 *) Get the Win32 compile working again. Modify mkdef.pl so it can handle
3552 functions that return function pointers and has support for NT specific
3553 stuff. Fix mk1mf.pl and VC-32.pl to support NT differences also. Various
3554 #ifdef WIN32 and WINNTs sprinkled about the place and some changes from
3555 unsigned to signed types: this was killing the Win32 compile.
3558 *) Add new certificate file to stack functions,
3559 SSL_add_dir_cert_subjects_to_stack() and
3560 SSL_add_file_cert_subjects_to_stack(). These largely supplant
3561 SSL_load_client_CA_file(), and can be used to add multiple certs easily
3562 to a stack (usually this is then handed to SSL_CTX_set_client_CA_list()).
3563 This means that Apache-SSL and similar packages don't have to mess around
3564 to add as many CAs as they want to the preferred list.
3567 *) Experiment with doxygen documentation. Currently only partially applied to
3569 See http://www.stack.nl/~dimitri/doxygen/index.html, and run doxygen with
3570 openssl.doxy as the configuration file.
3573 *) Get rid of remaining C++-style comments which strict C compilers hate.
3574 [Ralf S. Engelschall, pointed out by Carlos Amengual]
3576 *) Changed BN_RECURSION in bn_mont.c to BN_RECURSION_MONT so it is not
3577 compiled in by default: it has problems with large keys.
3580 *) Add a bunch of SSL_xxx() functions for configuring the temporary RSA and
3581 DH private keys and/or callback functions which directly correspond to
3582 their SSL_CTX_xxx() counterparts but work on a per-connection basis. This
3583 is needed for applications which have to configure certificates on a
3584 per-connection basis (e.g. Apache+m
projects / openssl.git / blob