4 Changes between 0.9.6 and 0.9.7 [xx XXX 2000]
6 *) Add new function BN_rand_range(), and fix DSA_sign_setup() to prevent
7 Bleichenbacher's DSA attack.
8 [Ulf Moeller, Bodo Moeller]
10 *) Update Rijndael code to version 3.0 and change EVP AES ciphers to
11 handle the new API. Currently only ECB, CBC modes supported. Add new
12 AES OIDs. Add TLS AES ciphersuites as described in the "AES Ciphersuites
13 for TLS" draft-ietf-tls-ciphersuite-03.txt.
14 [Ben Laurie, Steve Henson]
16 *) In the NCONF_...-based implementations for CONF_... queries
17 (crypto/conf/conf_lib.c), if the input LHASH is NULL, avoid using
18 a temporary CONF structure with the data component set to NULL
19 (which gives segmentation faults in lh_retrieve).
20 Instead, use NULL for the CONF pointer in CONF_get_string and
21 CONF_get_number (which may use environment variables) and directly
22 return NULL from CONF_get_section.
25 *) Fix potential buffer overrun for EBCDIC.
28 *) New function OCSP_copy_nonce() to copy nonce value (if present) from
32 *) Functions for OCSP responders. OCSP_request_onereq_count(),
33 OCSP_request_onereq_get0(), OCSP_onereq_get0_id() and OCSP_id_get0_info()
34 extract information from a certificate request. OCSP_response_create()
35 creates a response and optionally adds a basic response structure.
36 OCSP_basic_add1_status() adds a complete single response to a basic
37 reponse and returns the OCSP_SINGLERESP structure just added (to allow
38 extensions to be included for example). OCSP_basic_add1_cert() adds a
39 certificate to a basic response and OCSP_basic_sign() signs a basic
40 response with various flags. New helper functions ASN1_TIME_check()
41 (checks validity of ASN1_TIME structure) and ASN1_TIME_to_generalizedtime()
42 (converts ASN1_TIME to GeneralizedTime).
45 *) Various new functions. EVP_Digest() combines EVP_Digest{Init,Update,Final}()
46 in a single operation. X509_get0_pubkey_bitstr() extracts the public_key
47 structure from a certificate. X509_pubkey_digest() digests tha public_key
48 contents: this is used in various key identifiers.
51 *) Tolerate nonRepudiation as being valid for S/MIME signing and certSign
52 keyUsage if basicConstraints absent for a CA.
55 *) Make SMIME_write_PKCS7() write mail header values with a format that
56 is more generally accepted (no spaces before the semicolon), since
57 some programs can't parse those values properly otherwise. Also make
58 sure BIO's that break lines after each write do not create invalid
62 *) Make sk_sort() tolerate a NULL argument.
63 [Steve Henson reported by Massimiliano Pala <madwolf@comune.modena.it>]
65 *) New OCSP verify flag OCSP_TRUSTOTHER. When set the "other" certificates
66 passed by the function are trusted implicitly. If any of them signed the
67 reponse then it is assumed to be valid and is not verified.
70 *) Zero the premaster secret after deriving the master secret in
74 *) In PKCS7_set_type() initialise content_type in PKCS7_ENC_CONTENT
75 to data. This was previously part of the PKCS7 ASN1 code. This
76 was causing problems with OpenSSL created PKCS#12 and PKCS#7 structures.
77 [Steve Henson, reported by Kenneth R. Robinette
78 <support@securenetterm.com>]
80 *) Add CRYPTO_push_info() and CRYPTO_pop_info() calls to new ASN1
81 routines: without these tracing memory leaks is very painful.
82 Fix leaks in PKCS12 and PKCS7 routines.
85 *) Fix for Irix with NO_ASM.
86 ["Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
88 *) Add some EVP_add_digest_alias registrations (as found in
89 OpenSSL_add_all_digests()), to SSL_library_init()
90 aka OpenSSL_add_ssl_algorithms(). This provides improved
91 compatibility with peers using X.509 certificates
92 with unconventional AlgorithmIdentifier OIDs.
95 *) ./config script fixes.
96 [Ulf Moeller, Richard Levitte]
98 *) Make X509_time_adj() cope with the new behaviour of ASN1_TIME_new().
99 Previously it initialised the 'type' argument to V_ASN1_UTCTIME which
100 effectively meant GeneralizedTime would never be used. Now it
101 is initialised to -1 but X509_time_adj() now has to check the value
102 and use ASN1_TIME_set() if the value is not V_ASN1_UTCTIME or
103 V_ASN1_GENERALIZEDTIME, without this it always uses GeneralizedTime.
104 [Steve Henson, reported by Kenneth R. Robinette
105 <support@securenetterm.com>]
107 *) Fixes to BN_to_ASN1_INTEGER when bn is zero. This would previously
108 result in a zero length in the ASN1_INTEGER structure which was
109 not consistent with the structure when d2i_ASN1_INTEGER() was used
110 and would cause ASN1_INTEGER_cmp() to fail. Enhance s2i_ASN1_INTEGER()
111 to cope with hex and negative integers. Fix bug in i2a_ASN1_INTEGER()
112 where it did not print out a minus for negative ASN1_INTEGER.
115 *) Fix 'openssl passwd -1'.
118 *) Add summary printout to ocsp utility. The various functions which
119 convert status values to strings have been renamed to:
120 OCSP_response_status_str(), OCSP_cert_status_str() and
121 OCSP_crl_reason_str() and are no longer static. New options
122 to verify nonce values and to disable verification. OCSP response
123 printout format cleaned up.
126 *) Add additional OCSP certificate checks. These are those specified
127 in RFC2560. This consists of two separate checks: the CA of the
128 certificate being checked must either be the OCSP signer certificate
129 or the issuer of the OCSP signer certificate. In the latter case the
130 OCSP signer certificate must contain the OCSP signing extended key
131 usage. This check is performed by attempting to match the OCSP
132 signer or the OCSP signer CA to the issuerNameHash and issuerKeyHash
133 in the OCSP_CERTID structures of the response.
136 *) Initial OCSP certificate verification added to OCSP_basic_verify()
137 and related routines. This uses the standard OpenSSL certificate
138 verify routines to perform initial checks (just CA validity) and
139 to obtain the certificate chain. Then additional checks will be
140 performed on the chain. Currently the root CA is checked to see
141 if it is explicitly trusted for OCSP signing. This is used to set
142 a root CA as a global signing root: that is any certificate that
143 chains to that CA is an acceptable OCSP signing certificate.
146 *) New '-extfile ...' option to 'openssl ca' for reading X.509v3
147 extensions from a separate configuration file.
148 As when reading extensions from the main configuration file,
149 the '-extensions ...' option may be used for specifying the
151 [Massimiliano Pala <madwolf@comune.modena.it>]
153 *) Change PKCS12_key_gen_asc() so it can cope with non null
154 terminated strings whose length is passed in the passlen
155 parameter, for example from PEM callbacks. This was done
156 by adding an extra length parameter to asc2uni().
157 [Steve Henson, reported by <oddissey@samsung.co.kr>]
159 *) New OCSP utility. Allows OCSP requests to be generated or
160 read. The request can be sent to a responder and the output
161 parsed, outputed or printed in text form. Not complete yet:
162 still needs to check the OCSP response validity.
165 *) New subcommands for 'openssl ca':
166 'openssl ca -status <serial>' prints the status of the cert with
167 the given serial number (according to the index file).
168 'openssl ca -updatedb' updates the expiry status of certificates
170 [Massimiliano Pala <madwolf@comune.modena.it>]
172 *) New '-newreq-nodes' command option to CA.pl. This is like
173 '-newreq', but calls 'openssl req' with the '-nodes' option
174 so that the resulting key is not encrypted.
175 [Damien Miller <djm@mindrot.org>]
177 *) New configuration for the GNU Hurd.
178 [Jonathan Bartlett <johnnyb@wolfram.com> via Richard Levitte]
180 *) Initial code to implement OCSP basic response verify. This
181 is currently incomplete. Currently just finds the signer's
182 certificate and verifies the signature on the response.
185 *) New SSLeay_version code SSLEAY_DIR to determine the compiled-in
186 value of OPENSSLDIR. This is available via the new '-d' option
187 to 'openssl version', and is also included in 'openssl version -a'.
190 *) Fix C code generated by 'openssl dsaparam -C': If a BN_bin2bn
191 call failed, free the DSA structure.
194 *) Allowing defining memory allocation callbacks that will be given
195 file name and line number information in additional arguments
196 (a const char* and an int). The basic functionality remains, as
197 well as the original possibility to just replace malloc(),
198 realloc() and free() by functions that do not know about these
199 additional arguments. To register and find out the current
200 settings for extended allocation functions, the following
201 functions are provided:
203 CRYPTO_set_mem_ex_functions
204 CRYPTO_set_locked_mem_ex_functions
205 CRYPTO_get_mem_ex_functions
206 CRYPTO_get_locked_mem_ex_functions
208 These work the same way as CRYPTO_set_mem_functions and friends.
209 CRYPTO_get_[locked_]mem_functions now writes 0 where such an
210 extended allocation function is enabled.
211 Similarly, CRYPTO_get_[locked_]mem_ex_functions writes 0 where
212 a conventional allocation function is enabled.
213 [Richard Levitte, Bodo Moeller]
215 *) Fix to uni2asc() to cope with zero length Unicode strings.
216 These are present in some PKCS#12 files.
219 *) Finish off removing the remaining LHASH function pointer casts.
220 There should no longer be any prototype-casting required when using
221 the LHASH abstraction, and any casts that remain are "bugs". See
222 the callback types and macros at the head of lhash.h for details
223 (and "OBJ_cleanup" in crypto/objects/obj_dat.c as an example).
226 *) Add automatic query of EGD sockets in RAND_poll() for the unix variant.
227 If an EGD or PRNGD is running and enough entropy is returned, automatic
228 seeding like with /dev/[u]random will be performed.
229 Positions tried are: /etc/entropy, /var/run/egd-pool.
232 *) Change the Unix RAND_poll() variant to be able to poll several
233 random devices, as specified by DEVRANDOM, until a sufficient amount
234 of data has been collected. We spend at most 10 ms on each file
235 (select timeout) and read in non-blocking mode. DEVRANDOM now
236 defaults to the list "/dev/urandom", "/dev/random", "/dev/srandom"
237 (previously it was just the string "/dev/urandom"), so on typical
238 platforms the 10 ms delay will never occur.
239 Also separate out the Unix variant to its own file, rand_unix.c.
240 For VMS, there's a currently-empty rand_vms.c.
243 *) Move OCSP client related routines to ocsp_cl.c. These
244 provide utility functions which an application needing
245 to issue a request to an OCSP responder and analyse the
246 response will typically need: as opposed to those which an
247 OCSP responder itself would need which will be added later.
249 OCSP_request_sign() signs an OCSP request with an API similar
250 to PKCS7_sign(). OCSP_response_status() returns status of OCSP
251 response. OCSP_response_get1_basic() extracts basic response
252 from response. OCSP_resp_find_status(): finds and extracts status
253 information from an OCSP_CERTID structure (which will be created
254 when the request structure is built). These are built from lower
255 level functions which work on OCSP_SINGLERESP structures but
256 wont normally be used unless the application wishes to examine
257 extensions in the OCSP response for example.
259 Replace nonce routines with a pair of functions.
260 OCSP_request_add1_nonce() adds a nonce value and optionally
261 generates a random value. OCSP_check_nonce() checks the
262 validity of the nonce in an OCSP response.
265 *) Change function OCSP_request_add() to OCSP_request_add0_id().
266 This doesn't copy the supplied OCSP_CERTID and avoids the
267 need to free up the newly created id. Change return type
268 to OCSP_ONEREQ to return the internal OCSP_ONEREQ structure.
269 This can then be used to add extensions to the request.
270 Deleted OCSP_request_new(), since most of its functionality
271 is now in OCSP_REQUEST_new() (and the case insensitive name
272 clash) apart from the ability to set the request name which
273 will be added elsewhere.
276 *) Update OCSP API. Remove obsolete extensions argument from
277 various functions. Extensions are now handled using the new
278 OCSP extension code. New simple OCSP HTTP function which
279 can be used to send requests and parse the response.
282 *) Fix the PKCS#7 (S/MIME) code to work with new ASN1. Two new
283 ASN1_ITEM structures help with sign and verify. PKCS7_ATTR_SIGN
284 uses the special reorder version of SET OF to sort the attributes
285 and reorder them to match the encoded order. This resolves a long
286 standing problem: a verify on a PKCS7 structure just after signing
287 it used to fail because the attribute order did not match the
288 encoded order. PKCS7_ATTR_VERIFY does not reorder the attributes:
289 it uses the received order. This is necessary to tolerate some broken
290 software that does not order SET OF. This is handled by encoding
291 as a SEQUENCE OF but using implicit tagging (with UNIVERSAL class)
292 to produce the required SET OF.
295 *) Have mk1mf.pl generate the macros OPENSSL_BUILD_SHLIBCRYPTO and
296 OPENSSL_BUILD_SHLIBSSL and use them appropriately in the header
297 files to get correct declarations of the ASN.1 item variables.
300 *) Rewrite of PKCS#12 code to use new ASN1 functionality. Replace many
301 PKCS#12 macros with real functions. Fix two unrelated ASN1 bugs:
302 asn1_check_tlen() would sometimes attempt to use 'ctx' when it was
303 NULL and ASN1_TYPE was not dereferenced properly in asn1_ex_c2i().
304 New ASN1 macro: DECLARE_ASN1_ITEM() which just declares the relevant
305 ASN1_ITEM and no wrapper functions.
308 *) New functions or ASN1_item_d2i_fp() and ASN1_item_d2i_bio(). These
309 replace the old function pointer based I/O routines. Change most of
310 the *_d2i_bio() and *_d2i_fp() functions to use these.
313 *) Enhance mkdef.pl to be more accepting about spacing in C preprocessor
314 lines, recognice more "algorithms" that can be deselected, and make
315 it complain about algorithm deselection that isn't recognised.
318 *) New ASN1 functions to handle dup, sign, verify, digest, pack and
319 unpack operations in terms of ASN1_ITEM. Modify existing wrappers
320 to use new functions. Add NO_ASN1_OLD which can be set to remove
321 some old style ASN1 functions: this can be used to determine if old
322 code will still work when these eventually go away.
325 *) New extension functions for OCSP structures, these follow the
326 same conventions as certificates and CRLs.
329 *) New function X509V3_add1_i2d(). This automatically encodes and
330 adds an extension. Its behaviour can be customised with various
331 flags to append, replace or delete. Various wrappers added for
332 certifcates and CRLs.
335 *) Fix to avoid calling the underlying ASN1 print routine when
336 an extension cannot be parsed. Correct a typo in the
337 OCSP_SERVICELOC extension. Tidy up print OCSP format.
340 *) Increase s2->wbuf allocation by one byte in ssl2_new (ssl/s2_lib.c).
341 Otherwise do_ssl_write (ssl/s2_pkt.c) will write beyond buffer limits
342 when writing a 32767 byte record.
343 [Bodo Moeller; problem reported by Eric Day <eday@concentric.net>]
345 *) In RSA_eay_public_{en,ed}crypt and RSA_eay_mod_exp (rsa_eay.c),
346 obtain lock CRYPTO_LOCK_RSA before setting rsa->_method_mod_{n,p,q}.
348 (RSA objects have a reference count access to which is protected
349 by CRYPTO_LOCK_RSA [see rsa_lib.c, s3_srvr.c, ssl_cert.c, ssl_rsa.c],
350 so they are meant to be shared between threads.)
351 [Bodo Moeller, Geoff Thorpe; original patch submitted by
352 "Reddie, Steven" <Steven.Reddie@ca.com>]
354 *) Make mkdef.pl parse some of the ASN1 macros and add apropriate
355 entries for variables.
358 *) Fix a deadlock in CRYPTO_mem_leaks().
361 *) Add functionality to apps/openssl.c for detecting locking
362 problems: As the program is single-threaded, all we have
363 to do is register a locking callback using an array for
364 storing which locks are currently held by the program.
367 *) Use a lock around the call to CRYPTO_get_ex_new_index() in
368 SSL_get_ex_data_X509_STORE_idx(), which is used in
369 ssl_verify_cert_chain() and thus can be called at any time
370 during TLS/SSL handshakes so that thread-safety is essential.
371 Unfortunately, the ex_data design is not at all suited
372 for multi-threaded use, so it probably should be abolished.
375 *) Added Broadcom "ubsec" ENGINE to OpenSSL.
376 [Broadcom, tweaked and integrated by Geoff Thorpe]
378 *) Move common extension printing code to new function
379 X509V3_print_extensions(). Reorganise OCSP print routines and
380 implement some needed OCSP ASN1 functions. Add OCSP extensions.
383 *) New function X509_signature_print() to remove duplication in some
387 *) Add a special meaning when SET OF and SEQUENCE OF flags are both
388 set (this was treated exactly the same as SET OF previously). This
389 is used to reorder the STACK representing the structure to match the
390 encoding. This will be used to get round a problem where a PKCS7
391 structure which was signed could not be verified because the STACK
392 order did not reflect the encoded order.
395 *) Reimplement the OCSP ASN1 module using the new code.
398 *) Update the X509V3 code to permit the use of an ASN1_ITEM structure
399 for its ASN1 operations. The old style function pointers still exist
400 for now but they will eventually go away.
403 *) Merge in replacement ASN1 code from the ASN1 branch. This almost
404 completely replaces the old ASN1 functionality with a table driven
405 encoder and decoder which interprets an ASN1_ITEM structure describing
406 the ASN1 module. Compatibility with the existing ASN1 API (i2d,d2i) is
407 largely maintained. Almost all of the old asn1_mac.h macro based ASN1
408 has also been converted to the new form.
411 *) Change BN_mod_exp_recp so that negative moduli are tolerated
412 (the sign is ignored). Similarly, ignore the sign in BN_MONT_CTX_set
413 so that BN_mod_exp_mont and BN_mod_exp_mont_word work
417 *) Fix BN_uadd and BN_usub: Always return non-negative results instead
418 of not touching the result's sign bit.
421 *) BN_div bugfix: If the result is 0, the sign (res->neg) must not be
425 *) Changed the LHASH code to use prototypes for callbacks, and created
426 macros to declare and implement thin (optionally static) functions
427 that provide type-safety and avoid function pointer casting for the
428 type-specific callbacks.
431 *) Use better test patterns in bntest.
434 *) Added Kerberos Cipher Suites to be used with TLS, as written in
436 [Veers Staats <staatsvr@asc.hpc.mil>,
437 Jeffrey Altman <jaltman@columbia.edu>, via Richard Levitte]
439 *) rand_win.c fix for Borland C.
442 *) BN_rshift bugfix for n == 0.
445 *) Reformat the FAQ so the different questions and answers can be divided
446 in sections depending on the subject.
449 *) Have the zlib compression code load ZLIB.DLL dynamically under
453 *) New function BN_mod_sqrt for computing square roots modulo a prime
454 (using the probabilistic Tonelli-Shanks algorithm unless
455 p == 3 (mod 4) or p == 5 (mod 8), which are cases that can
456 be handled deterministically).
457 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
459 *) Store verify_result within SSL_SESSION also for client side to
460 avoid potential security hole. (Re-used sessions on the client side
461 always resulted in verify_result==X509_V_OK, not using the original
462 result of the server certificate verification.)
465 *) Make BN_mod_inverse faster by explicitly handling small quotients
466 in the Euclid loop. (Speed gain about 20% for small moduli [256 or
467 512 bits], about 30% for larger ones [1024 or 2048 bits].)
470 *) Fix ssl3_pending: If the record in s->s3->rrec is not of type
471 SSL3_RT_APPLICATION_DATA, return 0.
472 Similarly, change ssl2_pending to return 0 if SSL_in_init(s) is true.
476 Both ssl2_peek and ssl3_peek, which were totally broken in earlier
477 releases, have been re-implemented by renaming the previous
478 implementations of ssl2_read and ssl3_read to ssl2_read_internal
479 and ssl3_read_internal, respectively, and adding 'peek' parameters
480 to them. The new ssl[23]_{read,peek} functions are calls to
481 ssl[23]_read_internal with the 'peek' flag set appropriately.
482 A 'peek' parameter has also been added to ssl3_read_bytes, which
483 does the actual work for ssl3_read_internal.
486 *) New function BN_kronecker.
489 *) Fix BN_gcd so that it works on negative inputs; the result is
490 positive unless both parameters are zero.
491 Previously something reasonably close to an infinite loop was
492 possible because numbers could be growing instead of shrinking
493 in the implementation of Euclid's algorithm.
496 *) Fix BN_is_word() and BN_is_one() macros to take into account the
497 sign of the number in question.
499 Fix BN_is_word(a,w) to work correctly for w == 0.
501 The old BN_is_word(a,w) macro is now called BN_abs_is_word(a,w)
502 because its test if the absolute value of 'a' equals 'w'.
503 Note that BN_abs_is_word does *not* handle w == 0 reliably;
504 it exists mostly for use in the implementations of BN_is_zero(),
505 BN_is_one(), and BN_is_word().
508 *) Initialise "ex_data" member of RSA/DSA/DH structures prior to calling
509 the method-specific "init()" handler. Also clean up ex_data after
510 calling the method-specific "finish()" handler. Previously, this was
511 happening the other way round.
514 *) New function BN_swap.
517 *) Use BN_nnmod instead of BN_mod in crypto/bn/bn_exp.c so that
518 the exponentiation functions are more likely to produce reasonable
519 results on negative inputs.
522 *) Change BN_mod_mul so that the result is always non-negative.
523 Previously, it could be negative if one of the factors was negative;
524 I don't think anyone really wanted that behaviour.
527 *) Move BN_mod_... functions into new file crypto/bn/bn_mod.c
528 (except for exponentiation, which stays in crypto/bn/bn_exp.c,
529 and BN_mod_mul_reciprocal, which stays in crypto/bn/bn_recp.c)
530 and add new functions:
543 These functions always generate non-negative results.
545 BN_nnmod otherwise is like BN_mod (if BN_mod computes a remainder r
546 such that |m| < r < 0, BN_nnmod will output rem + |m| instead).
548 BN_mod_XXX_quick(r, a, [b,] m) generates the same result as
549 BN_mod_XXX(r, a, [b,] m, ctx), but requires that a [and b]
551 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
553 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
554 was actually never needed) and in BN_mul(). The removal in BN_mul()
555 required a small change in bn_mul_part_recursive() and the addition
556 of the functions bn_cmp_part_words(), bn_sub_part_words() and
557 bn_add_part_words(), which do the same thing as bn_cmp_words(),
558 bn_sub_words() and bn_add_words() except they take arrays with
562 *) In 'openssl passwd', verify passwords read from the terminal
563 unless the '-salt' option is used (which usually means that
564 verification would just waste user's time since the resulting
565 hash is going to be compared with some given password hash)
566 or the new '-noverify' option is used.
568 This is an incompatible change, but it does not affect
569 non-interactive use of 'openssl passwd' (passwords on the command
570 line, '-stdin' option, '-in ...' option) and thus should not
574 *) Remove all references to RSAref, since there's no more need for it.
577 *) Increase BN_CTX_NUM (the number of BIGNUMs in a BN_CTX) to 16.
578 The previous value, 12, was not always sufficient for BN_mod_exp().
581 *) Make DSO load along a path given through an environment variable
582 (SHLIB_PATH) with shl_load().
585 *) Constify the ENGINE code as a result of BIGNUM constification.
586 Also constify the RSA code and most things related to it. In a
587 few places, most notable in the depth of the ASN.1 code, ugly
588 casts back to non-const were required (to be solved at a later
592 *) Make it so the openssl application has all engines loaded by default.
595 *) Constify the BIGNUM routines a little more.
598 *) Make sure that shared libraries get the internal name engine with
599 the full version number and not just 0. This should mark the
600 shared libraries as not backward compatible. Of course, this should
601 be changed again when we can guarantee backward binary compatibility.
604 *) Add the following functions:
610 ENGINE_load_builtin_engines()
612 That way, an application can itself choose if external engines that
613 are built-in in OpenSSL shall ever be used or not. The benefit is
614 that applications won't have to be linked with libdl or other dso
615 libraries unless it's really needed.
617 Changed 'openssl engine' to load all engines on demand.
618 Changed the engine header files to avoid the duplication of some
619 declarations (they differed!).
622 *) 'openssl engine' can now list capabilities.
625 *) Better error reporting in 'openssl engine'.
628 *) Never call load_dh_param(NULL) in s_server.
631 *) Add engine application. It can currently list engines by name and
632 identity, and test if they are actually available.
635 *) Add support for shared libraries under Irix.
636 [Albert Chin-A-Young <china@thewrittenword.com>]
638 *) Improve RPM specification file by forcing symbolic linking and making
639 sure the installed documentation is also owned by root.root.
640 [Damien Miller <djm@mindrot.org>]
642 *) Add configuration option to build on Linux on both big-endian and
644 [Ralf Baechle <ralf@uni-koblenz.de>]
646 *) Give the OpenSSL applications more possibilities to make use of
647 keys (public as well as private) handled by engines.
650 *) Add OCSP code that comes from CertCo.
653 *) Add VMS support for the Rijndael code.
656 *) Added untested support for Nuron crypto accelerator.
659 *) Add support for external cryptographic devices. This code was
660 previously distributed separately as the "engine" branch.
661 [Geoff Thorpe, Richard Levitte]
663 *) Rework the filename-translation in the DSO code. It is now possible to
664 have far greater control over how a "name" is turned into a filename
665 depending on the operating environment and any oddities about the
666 different shared library filenames on each system.
669 *) Support threads on FreeBSD-elf in Configure.
672 *) Add the possibility to create shared libraries on HP-UX
675 *) Fix for SHA1 assembly problem with MASM: it produces
676 warnings about corrupt line number information when assembling
677 with debugging information. This is caused by the overlapping
679 [Bernd Matthes <mainbug@celocom.de>, Steve Henson]
682 NCONF_get_number() has no error checking at all. As a replacement,
683 NCONF_get_number_e() is defined (_e for "error checking") and is
684 promoted strongly. The old NCONF_get_number is kept around for
685 binary backward compatibility.
686 Make it possible for methods to load from something other than a BIO,
687 by providing a function pointer that is given a name instead of a BIO.
688 For example, this could be used to load configuration data from an
692 *) Fix typo in get_cert_by_subject() in by_dir.c
693 [Jean-Marc Desperrier <jean-marc.desperrier@certplus.com>]
695 *) Rework the system to generate shared libraries:
697 - Make note of the expected extension for the shared libraries and
698 if there is a need for symbolic links from for example libcrypto.so.0
699 to libcrypto.so.0.9.7. There is extended info in Configure for
702 - Make as few rebuilds of the shared libraries as possible.
704 - Still avoid linking the OpenSSL programs with the shared libraries.
706 - When installing, install the shared libraries separately from the
710 *) Fix for non blocking accept BIOs. Added new I/O special reason
711 BIO_RR_ACCEPT to cover this case. Previously use of accept BIOs
712 with non blocking I/O was not possible because no retry code was
713 implemented. Also added new SSL code SSL_WANT_ACCEPT to cover
717 *) Added the beginnings of Rijndael support.
720 *) Fix for bug in DirectoryString mask setting. Add support for
721 X509_NAME_print_ex() in 'req' and X509_print_ex() function
722 to allow certificate printing to more controllable, additional
723 'certopt' option to 'x509' to allow new printing options to be
727 *) Clean old EAY MD5 hack from e_os.h.
730 *) Fix SSL_CTX_set_read_ahead macro to actually use its argument.
732 Copy SSL_CTX's read_ahead flag to SSL object directly in SSL_new
733 and not in SSL_clear because the latter is also used by the
734 accept/connect functions; previously, the settings made by
735 SSL_set_read_ahead would be lost during the handshake.
736 [Bodo Moeller; problems reported by Anders Gertz <gertz@epact.se>]
738 *) Correct util/mkdef.pl to be selective about disabled algorithms.
739 Previously, it would create entries for disableed algorithms no
743 Changes between 0.9.5a and 0.9.6 [24 Sep 2000]
745 *) In ssl23_get_client_hello, generate an error message when faced
746 with an initial SSL 3.0/TLS record that is too small to contain the
747 first two bytes of the ClientHello message, i.e. client_version.
748 (Note that this is a pathologic case that probably has never happened
749 in real life.) The previous approach was to use the version number
750 from the record header as a substitute; but our protocol choice
751 should not depend on that one because it is not authenticated
752 by the Finished messages.
755 *) More robust randomness gathering functions for Windows.
756 [Jeffrey Altman <jaltman@columbia.edu>]
758 *) For compatibility reasons if the flag X509_V_FLAG_ISSUER_CHECK is
759 not set then we don't setup the error code for issuer check errors
760 to avoid possibly overwriting other errors which the callback does
761 handle. If an application does set the flag then we assume it knows
762 what it is doing and can handle the new informational codes
766 *) Fix for a nasty bug in ASN1_TYPE handling. ASN1_TYPE is used for
767 a general "ANY" type, as such it should be able to decode anything
768 including tagged types. However it didn't check the class so it would
769 wrongly interpret tagged types in the same way as their universal
770 counterpart and unknown types were just rejected. Changed so that the
771 tagged and unknown types are handled in the same way as a SEQUENCE:
772 that is the encoding is stored intact. There is also a new type
773 "V_ASN1_OTHER" which is used when the class is not universal, in this
774 case we have no idea what the actual type is so we just lump them all
778 *) On VMS, stdout may very well lead to a file that is written to
779 in a record-oriented fashion. That means that every write() will
780 write a separate record, which will be read separately by the
781 programs trying to read from it. This can be very confusing.
783 The solution is to put a BIO filter in the way that will buffer
784 text until a linefeed is reached, and then write everything a
785 line at a time, so every record written will be an actual line,
786 not chunks of lines and not (usually doesn't happen, but I've
787 seen it once) several lines in one record. BIO_f_linebuffer() is
790 Currently, it's a VMS-only method, because that's where it has
791 been tested well enough.
794 *) Remove 'optimized' squaring variant in BN_mod_mul_montgomery,
795 it can return incorrect results.
796 (Note: The buggy variant was not enabled in OpenSSL 0.9.5a,
797 but it was in 0.9.6-beta[12].)
800 *) Disable the check for content being present when verifying detached
801 signatures in pk7_smime.c. Some versions of Netscape (wrongly)
802 include zero length content when signing messages.
805 *) New BIO_shutdown_wr macro, which invokes the BIO_C_SHUTDOWN_WR
806 BIO_ctrl (for BIO pairs).
809 *) Add DSO method for VMS.
812 *) Bug fix: Montgomery multiplication could produce results with the
816 *) Add RPM specification openssl.spec and modify it to build three
817 packages. The default package contains applications, application
818 documentation and run-time libraries. The devel package contains
819 include files, static libraries and function documentation. The
820 doc package contains the contents of the doc directory. The original
821 openssl.spec was provided by Damien Miller <djm@mindrot.org>.
824 *) Add a large number of documentation files for many SSL routines.
825 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
827 *) Add a configuration entry for Sony News 4.
828 [NAKAJI Hiroyuki <nakaji@tutrp.tut.ac.jp>]
830 *) Don't set the two most significant bits to one when generating a
831 random number < q in the DSA library.
834 *) New SSL API mode 'SSL_MODE_AUTO_RETRY'. This disables the default
835 behaviour that SSL_read may result in SSL_ERROR_WANT_READ (even if
836 the underlying transport is blocking) if a handshake took place.
837 (The default behaviour is needed by applications such as s_client
838 and s_server that use select() to determine when to use SSL_read;
839 but for applications that know in advance when to expect data, it
840 just makes things more complicated.)
843 *) Add RAND_egd_bytes(), which gives control over the number of bytes read
847 *) Add a few more EBCDIC conditionals that make `req' and `x509'
848 work better on such systems.
849 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
851 *) Add two demo programs for PKCS12_parse() and PKCS12_create().
852 Update PKCS12_parse() so it copies the friendlyName and the
853 keyid to the certificates aux info.
856 *) Fix bug in PKCS7_verify() which caused an infinite loop
857 if there was more than one signature.
858 [Sven Uszpelkat <su@celocom.de>]
860 *) Major change in util/mkdef.pl to include extra information
861 about each symbol, as well as presentig variables as well
862 as functions. This change means that there's n more need
863 to rebuild the .num files when some algorithms are excluded.
866 *) Allow the verify time to be set by an application,
867 rather than always using the current time.
870 *) Phase 2 verify code reorganisation. The certificate
871 verify code now looks up an issuer certificate by a
872 number of criteria: subject name, authority key id
873 and key usage. It also verifies self signed certificates
874 by the same criteria. The main comparison function is
875 X509_check_issued() which performs these checks.
877 Lot of changes were necessary in order to support this
878 without completely rewriting the lookup code.
880 Authority and subject key identifier are now cached.
882 The LHASH 'certs' is X509_STORE has now been replaced
883 by a STACK_OF(X509_OBJECT). This is mainly because an
884 LHASH can't store or retrieve multiple objects with
887 As a result various functions (which were all internal
888 use only) have changed to handle the new X509_STORE
889 structure. This will break anything that messed round
890 with X509_STORE internally.
892 The functions X509_STORE_add_cert() now checks for an
893 exact match, rather than just subject name.
895 The X509_STORE API doesn't directly support the retrieval
896 of multiple certificates matching a given criteria, however
897 this can be worked round by performing a lookup first
898 (which will fill the cache with candidate certificates)
899 and then examining the cache for matches. This is probably
900 the best we can do without throwing out X509_LOOKUP
901 entirely (maybe later...).
903 The X509_VERIFY_CTX structure has been enhanced considerably.
905 All certificate lookup operations now go via a get_issuer()
906 callback. Although this currently uses an X509_STORE it
907 can be replaced by custom lookups. This is a simple way
908 to bypass the X509_STORE hackery necessary to make this
909 work and makes it possible to use more efficient techniques
910 in future. A very simple version which uses a simple
911 STACK for its trusted certificate store is also provided
912 using X509_STORE_CTX_trusted_stack().
914 The verify_cb() and verify() callbacks now have equivalents
915 in the X509_STORE_CTX structure.
917 X509_STORE_CTX also has a 'flags' field which can be used
918 to customise the verify behaviour.
921 *) Add new PKCS#7 signing option PKCS7_NOSMIMECAP which
922 excludes S/MIME capabilities.
925 *) When a certificate request is read in keep a copy of the
926 original encoding of the signed data and use it when outputing
927 again. Signatures then use the original encoding rather than
928 a decoded, encoded version which may cause problems if the
929 request is improperly encoded.
932 *) For consistency with other BIO_puts implementations, call
933 buffer_write(b, ...) directly in buffer_puts instead of calling
936 In BIO_puts, increment b->num_write as in BIO_write.
937 [Peter.Sylvester@EdelWeb.fr]
939 *) Fix BN_mul_word for the case where the word is 0. (We have to use
940 BN_zero, we may not return a BIGNUM with an array consisting of
944 *) Avoid calling abort() from within the library when problems are
945 detected, except if preprocessor symbols have been defined
946 (such as REF_CHECK, BN_DEBUG etc.).
949 *) New openssl application 'rsautl'. This utility can be
950 used for low level RSA operations. DER public key
951 BIO/fp routines also added.
954 *) New Configure entry and patches for compiling on QNX 4.
955 [Andreas Schneider <andreas@ds3.etech.fh-hamburg.de>]
957 *) A demo state-machine implementation was sponsored by
958 Nuron (http://www.nuron.com/) and is now available in
962 *) New options added to the 'dgst' utility for signature
963 generation and verification.
966 *) Unrecognized PKCS#7 content types are now handled via a
967 catch all ASN1_TYPE structure. This allows unsupported
968 types to be stored as a "blob" and an application can
969 encode and decode it manually.
972 *) Fix various signed/unsigned issues to make a_strex.c
974 [Oscar Jacobsson <oscar.jacobsson@celocom.com>]
976 *) ASN1 fixes. i2d_ASN1_OBJECT was not returning the correct
977 length if passed a buffer. ASN1_INTEGER_to_BN failed
978 if passed a NULL BN and its argument was negative.
979 [Steve Henson, pointed out by Sven Heiberg <sven@tartu.cyber.ee>]
981 *) Modification to PKCS#7 encoding routines to output definite
982 length encoding. Since currently the whole structures are in
983 memory there's not real point in using indefinite length
984 constructed encoding. However if OpenSSL is compiled with
985 the flag PKCS7_INDEFINITE_ENCODING the old form is used.
988 *) Added BIO_vprintf() and BIO_vsnprintf().
991 *) Added more prefixes to parse for in the the strings written
992 through a logging bio, to cover all the levels that are available
993 through syslog. The prefixes are now:
995 PANIC, EMERG, EMR => LOG_EMERG
996 ALERT, ALR => LOG_ALERT
997 CRIT, CRI => LOG_CRIT
998 ERROR, ERR => LOG_ERR
999 WARNING, WARN, WAR => LOG_WARNING
1000 NOTICE, NOTE, NOT => LOG_NOTICE
1001 INFO, INF => LOG_INFO
1002 DEBUG, DBG => LOG_DEBUG
1004 and as before, if none of those prefixes are present at the
1005 beginning of the string, LOG_ERR is chosen.
1007 On Win32, the LOG_* levels are mapped according to this:
1009 LOG_EMERG, LOG_ALERT, LOG_CRIT, LOG_ERR => EVENTLOG_ERROR_TYPE
1010 LOG_WARNING => EVENTLOG_WARNING_TYPE
1011 LOG_NOTICE, LOG_INFO, LOG_DEBUG => EVENTLOG_INFORMATION_TYPE
1015 *) Made it possible to reconfigure with just the configuration
1016 argument "reconf" or "reconfigure". The command line arguments
1017 are stored in Makefile.ssl in the variable CONFIGURE_ARGS,
1018 and are retrieved from there when reconfiguring.
1022 [Assar Westerlund <assar@sics.se>, Richard Levitte]
1024 *) Add the arguments -CAfile and -CApath to the pkcs12 utility.
1027 *) The obj_dat.pl script was messing up the sorting of object
1028 names. The reason was that it compared the quoted version
1029 of strings as a result "OCSP" > "OCSP Signing" because
1030 " > SPACE. Changed script to store unquoted versions of
1031 names and add quotes on output. It was also omitting some
1032 names from the lookup table if they were given a default
1033 value (that is if SN is missing it is given the same
1034 value as LN and vice versa), these are now added on the
1035 grounds that if an object has a name we should be able to
1036 look it up. Finally added warning output when duplicate
1037 short or long names are found.
1040 *) Changes needed for Tandem NSK.
1041 [Scott Uroff <scott@xypro.com>]
1043 *) Fix SSL 2.0 rollback checking: Due to an off-by-one error in
1044 RSA_padding_check_SSLv23(), special padding was never detected
1045 and thus the SSL 3.0/TLS 1.0 countermeasure against protocol
1046 version rollback attacks was not effective.
1048 In s23_clnt.c, don't use special rollback-attack detection padding
1049 (RSA_SSLV23_PADDING) if SSL 2.0 is the only protocol enabled in the
1050 client; similarly, in s23_srvr.c, don't do the rollback check if
1051 SSL 2.0 is the only protocol enabled in the server.
1054 *) Make it possible to get hexdumps of unprintable data with 'openssl
1055 asn1parse'. By implication, the functions ASN1_parse_dump() and
1056 BIO_dump_indent() are added.
1059 *) New functions ASN1_STRING_print_ex() and X509_NAME_print_ex()
1060 these print out strings and name structures based on various
1061 flags including RFC2253 support and proper handling of
1062 multibyte characters. Added options to the 'x509' utility
1063 to allow the various flags to be set.
1066 *) Various fixes to use ASN1_TIME instead of ASN1_UTCTIME.
1067 Also change the functions X509_cmp_current_time() and
1068 X509_gmtime_adj() work with an ASN1_TIME structure,
1069 this will enable certificates using GeneralizedTime in validity
1070 dates to be checked.
1073 *) Make the NEG_PUBKEY_BUG code (which tolerates invalid
1074 negative public key encodings) on by default,
1075 NO_NEG_PUBKEY_BUG can be set to disable it.
1078 *) New function c2i_ASN1_OBJECT() which acts on ASN1_OBJECT
1079 content octets. An i2c_ASN1_OBJECT is unnecessary because
1080 the encoding can be trivially obtained from the structure.
1083 *) crypto/err.c locking bugfix: Use write locks (CRYPTO_w_[un]lock),
1084 not read locks (CRYPTO_r_[un]lock).
1087 *) A first attempt at creating official support for shared
1088 libraries through configuration. I've kept it so the
1089 default is static libraries only, and the OpenSSL programs
1090 are always statically linked for now, but there are
1091 preparations for dynamic linking in place.
1092 This has been tested on Linux and True64.
1095 *) Randomness polling function for Win9x, as described in:
1096 Peter Gutmann, Software Generation of Practically Strong
1100 *) Fix so PRNG is seeded in req if using an already existing
1104 *) New options to smime application. -inform and -outform
1105 allow alternative formats for the S/MIME message including
1106 PEM and DER. The -content option allows the content to be
1107 specified separately. This should allow things like Netscape
1108 form signing output easier to verify.
1111 *) Fix the ASN1 encoding of tags using the 'long form'.
1114 *) New ASN1 functions, i2c_* and c2i_* for INTEGER and BIT
1115 STRING types. These convert content octets to and from the
1116 underlying type. The actual tag and length octets are
1117 already assumed to have been read in and checked. These
1118 are needed because all other string types have virtually
1119 identical handling apart from the tag. By having versions
1120 of the ASN1 functions that just operate on content octets
1121 IMPLICIT tagging can be handled properly. It also allows
1122 the ASN1_ENUMERATED code to be cut down because ASN1_ENUMERATED
1123 and ASN1_INTEGER are identical apart from the tag.
1126 *) Change the handling of OID objects as follows:
1128 - New object identifiers are inserted in objects.txt, following
1129 the syntax given in objects.README.
1130 - objects.pl is used to process obj_mac.num and create a new
1132 - obj_dat.pl is used to create a new obj_dat.h, using the data in
1135 This is currently kind of a hack, and the perl code in objects.pl
1136 isn't very elegant, but it works as I intended. The simplest way
1137 to check that it worked correctly is to look in obj_dat.h and
1138 check the array nid_objs and make sure the objects haven't moved
1139 around (this is important!). Additions are OK, as well as
1140 consistent name changes.
1143 *) Add BSD-style MD5-based passwords to 'openssl passwd' (option '-1').
1146 *) Addition of the command line parameter '-rand file' to 'openssl req'.
1147 The given file adds to whatever has already been seeded into the
1148 random pool through the RANDFILE configuration file option or
1149 environment variable, or the default random state file.
1152 *) mkstack.pl now sorts each macro group into lexical order.
1153 Previously the output order depended on the order the files
1154 appeared in the directory, resulting in needless rewriting
1158 *) Patches to make OpenSSL compile under Win32 again. Mostly
1159 work arounds for the VC++ problem that it treats func() as
1160 func(void). Also stripped out the parts of mkdef.pl that
1161 added extra typesafe functions: these no longer exist.
1164 *) Reorganisation of the stack code. The macros are now all
1165 collected in safestack.h . Each macro is defined in terms of
1166 a "stack macro" of the form SKM_<name>(type, a, b). The
1167 DEBUG_SAFESTACK is now handled in terms of function casts,
1168 this has the advantage of retaining type safety without the
1169 use of additional functions. If DEBUG_SAFESTACK is not defined
1170 then the non typesafe macros are used instead. Also modified the
1171 mkstack.pl script to handle the new form. Needs testing to see
1172 if which (if any) compilers it chokes and maybe make DEBUG_SAFESTACK
1173 the default if no major problems. Similar behaviour for ASN1_SET_OF
1174 and PKCS12_STACK_OF.
1177 *) When some versions of IIS use the 'NET' form of private key the
1178 key derivation algorithm is different. Normally MD5(password) is
1179 used as a 128 bit RC4 key. In the modified case
1180 MD5(MD5(password) + "SGCKEYSALT") is used insted. Added some
1181 new functions i2d_RSA_NET(), d2i_RSA_NET() etc which are the same
1182 as the old Netscape_RSA functions except they have an additional
1183 'sgckey' parameter which uses the modified algorithm. Also added
1184 an -sgckey command line option to the rsa utility. Thanks to
1185 Adrian Peck <bertie@ncipher.com> for posting details of the modified
1186 algorithm to openssl-dev.
1189 *) The evp_local.h macros were using 'c.##kname' which resulted in
1190 invalid expansion on some systems (SCO 5.0.5 for example).
1191 Corrected to 'c.kname'.
1192 [Phillip Porch <root@theporch.com>]
1194 *) New X509_get1_email() and X509_REQ_get1_email() functions that return
1195 a STACK of email addresses from a certificate or request, these look
1196 in the subject name and the subject alternative name extensions and
1197 omit any duplicate addresses.
1200 *) Re-implement BN_mod_exp2_mont using independent (and larger) windows.
1201 This makes DSA verification about 2 % faster.
1204 *) Increase maximum window size in BN_mod_exp_... to 6 bits instead of 5
1205 (meaning that now 2^5 values will be precomputed, which is only 4 KB
1206 plus overhead for 1024 bit moduli).
1207 This makes exponentiations about 0.5 % faster for 1024 bit
1208 exponents (as measured by "openssl speed rsa2048").
1211 *) Rename memory handling macros to avoid conflicts with other
1213 Malloc => OPENSSL_malloc
1214 Malloc_locked => OPENSSL_malloc_locked
1215 Realloc => OPENSSL_realloc
1216 Free => OPENSSL_free
1219 *) New function BN_mod_exp_mont_word for small bases (roughly 15%
1220 faster than BN_mod_exp_mont, i.e. 7% for a full DH exchange).
1223 *) CygWin32 support.
1224 [John Jarvie <jjarvie@newsguy.com>]
1226 *) The type-safe stack code has been rejigged. It is now only compiled
1227 in when OpenSSL is configured with the DEBUG_SAFESTACK option and
1228 by default all type-specific stack functions are "#define"d back to
1229 standard stack functions. This results in more streamlined output
1230 but retains the type-safety checking possibilities of the original
1234 *) The STACK code has been cleaned up, and certain type declarations
1235 that didn't make a lot of sense have been brought in line. This has
1236 also involved a cleanup of sorts in safestack.h to more correctly
1237 map type-safe stack functions onto their plain stack counterparts.
1238 This work has also resulted in a variety of "const"ifications of
1239 lots of the code, especially "_cmp" operations which should normally
1240 be prototyped with "const" parameters anyway.
1243 *) When generating bytes for the first time in md_rand.c, 'stir the pool'
1244 by seeding with STATE_SIZE dummy bytes (with zero entropy count).
1245 (The PRNG state consists of two parts, the large pool 'state' and 'md',
1246 where all of 'md' is used each time the PRNG is used, but 'state'
1247 is used only indexed by a cyclic counter. As entropy may not be
1248 well distributed from the beginning, 'md' is important as a
1249 chaining variable. However, the output function chains only half
1250 of 'md', i.e. 80 bits. ssleay_rand_add, on the other hand, chains
1251 all of 'md', and seeding with STATE_SIZE dummy bytes will result
1252 in all of 'state' being rewritten, with the new values depending
1253 on virtually all of 'md'. This overcomes the 80 bit limitation.)
1256 *) In ssl/s2_clnt.c and ssl/s3_clnt.c, call ERR_clear_error() when
1257 the handshake is continued after ssl_verify_cert_chain();
1258 otherwise, if SSL_VERIFY_NONE is set, remaining error codes
1259 can lead to 'unexplainable' connection aborts later.
1260 [Bodo Moeller; problem tracked down by Lutz Jaenicke]
1262 *) Major EVP API cipher revision.
1263 Add hooks for extra EVP features. This allows various cipher
1264 parameters to be set in the EVP interface. Support added for variable
1265 key length ciphers via the EVP_CIPHER_CTX_set_key_length() function and
1266 setting of RC2 and RC5 parameters.
1268 Modify EVP_OpenInit() and EVP_SealInit() to cope with variable key length
1271 Remove lots of duplicated code from the EVP library. For example *every*
1272 cipher init() function handles the 'iv' in the same way according to the
1273 cipher mode. They also all do nothing if the 'key' parameter is NULL and
1274 for CFB and OFB modes they zero ctx->num.
1276 New functionality allows removal of S/MIME code RC2 hack.
1278 Most of the routines have the same form and so can be declared in terms
1281 By shifting this to the top level EVP_CipherInit() it can be removed from
1282 all individual ciphers. If the cipher wants to handle IVs or keys
1283 differently it can set the EVP_CIPH_CUSTOM_IV or EVP_CIPH_ALWAYS_CALL_INIT
1286 Change lots of functions like EVP_EncryptUpdate() to now return a
1287 value: although software versions of the algorithms cannot fail
1288 any installed hardware versions can.
1291 *) Implement SSL_OP_TLS_ROLLBACK_BUG: In ssl3_get_client_key_exchange, if
1292 this option is set, tolerate broken clients that send the negotiated
1293 protocol version number instead of the requested protocol version
1297 *) Call dh_tmp_cb (set by ..._TMP_DH_CB) with correct 'is_export' flag;
1298 i.e. non-zero for export ciphersuites, zero otherwise.
1299 Previous versions had this flag inverted, inconsistent with
1300 rsa_tmp_cb (..._TMP_RSA_CB).
1301 [Bodo Moeller; problem reported by Amit Chopra]
1303 *) Add missing DSA library text string. Work around for some IIS
1304 key files with invalid SEQUENCE encoding.
1307 *) Add a document (doc/standards.txt) that list all kinds of standards
1308 and so on that are implemented in OpenSSL.
1311 *) Enhance c_rehash script. Old version would mishandle certificates
1312 with the same subject name hash and wouldn't handle CRLs at all.
1313 Added -fingerprint option to crl utility, to support new c_rehash
1317 *) Eliminate non-ANSI declarations in crypto.h and stack.h.
1320 *) Fix for SSL server purpose checking. Server checking was
1321 rejecting certificates which had extended key usage present
1322 but no ssl client purpose.
1323 [Steve Henson, reported by Rene Grosser <grosser@hisolutions.com>]
1325 *) Make PKCS#12 code work with no password. The PKCS#12 spec
1326 is a little unclear about how a blank password is handled.
1327 Since the password in encoded as a BMPString with terminating
1328 double NULL a zero length password would end up as just the
1329 double NULL. However no password at all is different and is
1330 handled differently in the PKCS#12 key generation code. NS
1331 treats a blank password as zero length. MSIE treats it as no
1332 password on export: but it will try both on import. We now do
1333 the same: PKCS12_parse() tries zero length and no password if
1334 the password is set to "" or NULL (NULL is now a valid password:
1335 it wasn't before) as does the pkcs12 application.
1338 *) Bugfixes in apps/x509.c: Avoid a memory leak; and don't use
1339 perror when PEM_read_bio_X509_REQ fails, the error message must
1340 be obtained from the error queue.
1343 *) Avoid 'thread_hash' memory leak in crypto/err/err.c by freeing
1344 it in ERR_remove_state if appropriate, and change ERR_get_state
1345 accordingly to avoid race conditions (this is necessary because
1346 thread_hash is no longer constant once set).
1349 *) Bugfix for linux-elf makefile.one.
1352 *) RSA_get_default_method() will now cause a default
1353 RSA_METHOD to be chosen if one doesn't exist already.
1354 Previously this was only set during a call to RSA_new()
1355 or RSA_new_method(NULL) meaning it was possible for
1356 RSA_get_default_method() to return NULL.
1359 *) Added native name translation to the existing DSO code
1360 that will convert (if the flag to do so is set) filenames
1361 that are sufficiently small and have no path information
1362 into a canonical native form. Eg. "blah" converted to
1363 "libblah.so" or "blah.dll" etc.
1366 *) New function ERR_error_string_n(e, buf, len) which is like
1367 ERR_error_string(e, buf), but writes at most 'len' bytes
1368 including the 0 terminator. For ERR_error_string_n, 'buf'
1370 [Damien Miller <djm@mindrot.org>, Bodo Moeller]
1372 *) CONF library reworked to become more general. A new CONF
1373 configuration file reader "class" is implemented as well as a
1374 new functions (NCONF_*, for "New CONF") to handle it. The now
1375 old CONF_* functions are still there, but are reimplemented to
1376 work in terms of the new functions. Also, a set of functions
1377 to handle the internal storage of the configuration data is
1378 provided to make it easier to write new configuration file
1379 reader "classes" (I can definitely see something reading a
1380 configuration file in XML format, for example), called _CONF_*,
1381 or "the configuration storage API"...
1383 The new configuration file reading functions are:
1385 NCONF_new, NCONF_free, NCONF_load, NCONF_load_fp, NCONF_load_bio,
1386 NCONF_get_section, NCONF_get_string, NCONF_get_numbre
1388 NCONF_default, NCONF_WIN32
1390 NCONF_dump_fp, NCONF_dump_bio
1392 NCONF_default and NCONF_WIN32 are method (or "class") choosers,
1393 NCONF_new creates a new CONF object. This works in the same way
1394 as other interfaces in OpenSSL, like the BIO interface.
1395 NCONF_dump_* dump the internal storage of the configuration file,
1396 which is useful for debugging. All other functions take the same
1397 arguments as the old CONF_* functions wth the exception of the
1398 first that must be a `CONF *' instead of a `LHASH *'.
1400 To make it easer to use the new classes with the old CONF_* functions,
1401 the function CONF_set_default_method is provided.
1404 *) Add '-tls1' option to 'openssl ciphers', which was already
1405 mentioned in the documentation but had not been implemented.
1406 (This option is not yet really useful because even the additional
1407 experimental TLS 1.0 ciphers are currently treated as SSL 3.0 ciphers.)
1410 *) Initial DSO code added into libcrypto for letting OpenSSL (and
1411 OpenSSL-based applications) load shared libraries and bind to
1412 them in a portable way.
1413 [Geoff Thorpe, with contributions from Richard Levitte]
1415 Changes between 0.9.5 and 0.9.5a [1 Apr 2000]
1417 *) Make sure _lrotl and _lrotr are only used with MSVC.
1419 *) Use lock CRYPTO_LOCK_RAND correctly in ssleay_rand_status
1420 (the default implementation of RAND_status).
1422 *) Rename openssl x509 option '-crlext', which was added in 0.9.5,
1423 to '-clrext' (= clear extensions), as intended and documented.
1424 [Bodo Moeller; inconsistency pointed out by Michael Attili
1427 *) Fix for HMAC. It wasn't zeroing the rest of the block if the key length
1428 was larger than the MD block size.
1429 [Steve Henson, pointed out by Yost William <YostW@tce.com>]
1431 *) Modernise PKCS12_parse() so it uses STACK_OF(X509) for its ca argument
1432 fix a leak when the ca argument was passed as NULL. Stop X509_PUBKEY_set()
1433 using the passed key: if the passed key was a private key the result
1434 of X509_print(), for example, would be to print out all the private key
1438 *) des_quad_cksum() byte order bug fix.
1439 [Ulf Möller, using the problem description in krb4-0.9.7, where
1440 the solution is attributed to Derrick J Brashear <shadow@DEMENTIA.ORG>]
1442 *) Fix so V_ASN1_APP_CHOOSE works again: however its use is strongly
1444 [Steve Henson, pointed out by Brian Korver <briank@cs.stanford.edu>]
1446 *) For easily testing in shell scripts whether some command
1447 'openssl XXX' exists, the new pseudo-command 'openssl no-XXX'
1448 returns with exit code 0 iff no command of the given name is available.
1449 'no-XXX' is printed in this case, 'XXX' otherwise. In both cases,
1450 the output goes to stdout and nothing is printed to stderr.
1451 Additional arguments are always ignored.
1453 Since for each cipher there is a command of the same name,
1454 the 'no-cipher' compilation switches can be tested this way.
1456 ('openssl no-XXX' is not able to detect pseudo-commands such
1457 as 'quit', 'list-XXX-commands', or 'no-XXX' itself.)
1460 *) Update test suite so that 'make test' succeeds in 'no-rsa' configuration.
1463 *) For SSL_[CTX_]set_tmp_dh, don't create a DH key if SSL_OP_SINGLE_DH_USE
1464 is set; it will be thrown away anyway because each handshake creates
1466 ssl_cert_dup, which is used by SSL_new, now copies DH keys in addition
1467 to parameters -- in previous versions (since OpenSSL 0.9.3) the
1468 'default key' from SSL_CTX_set_tmp_dh would always be lost, meanining
1469 you effectivly got SSL_OP_SINGLE_DH_USE when using this macro.
1472 *) New s_client option -ign_eof: EOF at stdin is ignored, and
1473 'Q' and 'R' lose their special meanings (quit/renegotiate).
1474 This is part of what -quiet does; unlike -quiet, -ign_eof
1475 does not suppress any output.
1478 *) Add compatibility options to the purpose and trust code. The
1479 purpose X509_PURPOSE_ANY is "any purpose" which automatically
1480 accepts a certificate or CA, this was the previous behaviour,
1481 with all the associated security issues.
1483 X509_TRUST_COMPAT is the old trust behaviour: only and
1484 automatically trust self signed roots in certificate store. A
1485 new trust setting X509_TRUST_DEFAULT is used to specify that
1486 a purpose has no associated trust setting and it should instead
1487 use the value in the default purpose.
1490 *) Fix the PKCS#8 DSA private key code so it decodes keys again
1491 and fix a memory leak.
1494 *) In util/mkerr.pl (which implements 'make errors'), preserve
1495 reason strings from the previous version of the .c file, as
1496 the default to have only downcase letters (and digits) in
1497 automatically generated reasons codes is not always appropriate.
1500 *) In ERR_load_ERR_strings(), build an ERR_LIB_SYS error reason table
1501 using strerror. Previously, ERR_reason_error_string() returned
1502 library names as reason strings for SYSerr; but SYSerr is a special
1503 case where small numbers are errno values, not library numbers.
1506 *) Add '-dsaparam' option to 'openssl dhparam' application. This
1507 converts DSA parameters into DH parameters. (When creating parameters,
1508 DSA_generate_parameters is used.)
1511 *) Include 'length' (recommended exponent length) in C code generated
1512 by 'openssl dhparam -C'.
1515 *) The second argument to set_label in perlasm was already being used
1516 so couldn't be used as a "file scope" flag. Moved to third argument
1520 *) In PEM_ASN1_write_bio and some other functions, use RAND_pseudo_bytes
1521 instead of RAND_bytes for encryption IVs and salts.
1524 *) Include RAND_status() into RAND_METHOD instead of implementing
1525 it only for md_rand.c Otherwise replacing the PRNG by calling
1526 RAND_set_rand_method would be impossible.
1529 *) Don't let DSA_generate_key() enter an infinite loop if the random
1530 number generation fails.
1533 *) New 'rand' application for creating pseudo-random output.
1536 *) Added configuration support for Linux/IA64
1537 [Rolf Haberrecker <rolf@suse.de>]
1539 *) Assembler module support for Mingw32.
1542 *) Shared library support for HPUX (in shlib/).
1543 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE> and Anonymous]
1545 *) Shared library support for Solaris gcc.
1546 [Lutz Behnke <behnke@trustcenter.de>]
1548 Changes between 0.9.4 and 0.9.5 [28 Feb 2000]
1550 *) PKCS7_encrypt() was adding text MIME headers twice because they
1551 were added manually and by SMIME_crlf_copy().
1554 *) In bntest.c don't call BN_rand with zero bits argument.
1555 [Steve Henson, pointed out by Andrew W. Gray <agray@iconsinc.com>]
1557 *) BN_mul bugfix: In bn_mul_part_recursion() only the a>a[n] && b>b[n]
1558 case was implemented. This caused BN_div_recp() to fail occasionally.
1561 *) Add an optional second argument to the set_label() in the perl
1562 assembly language builder. If this argument exists and is set
1563 to 1 it signals that the assembler should use a symbol whose
1564 scope is the entire file, not just the current function. This
1565 is needed with MASM which uses the format label:: for this scope.
1566 [Steve Henson, pointed out by Peter Runestig <peter@runestig.com>]
1568 *) Change the ASN1 types so they are typedefs by default. Before
1569 almost all types were #define'd to ASN1_STRING which was causing
1570 STACK_OF() problems: you couldn't declare STACK_OF(ASN1_UTF8STRING)
1574 *) Change names of new functions to the new get1/get0 naming
1575 convention: After 'get1', the caller owns a reference count
1576 and has to call ..._free; 'get0' returns a pointer to some
1577 data structure without incrementing reference counters.
1578 (Some of the existing 'get' functions increment a reference
1579 counter, some don't.)
1580 Similarly, 'set1' and 'add1' functions increase reference
1581 counters or duplicate objects.
1584 *) Allow for the possibility of temp RSA key generation failure:
1585 the code used to assume it always worked and crashed on failure.
1588 *) Fix potential buffer overrun problem in BIO_printf().
1589 [Ulf Möller, using public domain code by Patrick Powell; problem
1590 pointed out by David Sacerdote <das33@cornell.edu>]
1592 *) Support EGD <http://www.lothar.com/tech/crypto/>. New functions
1593 RAND_egd() and RAND_status(). In the command line application,
1594 the EGD socket can be specified like a seed file using RANDFILE
1598 *) Allow the string CERTIFICATE to be tolerated in PKCS#7 structures.
1599 Some CAs (e.g. Verisign) distribute certificates in this form.
1602 *) Remove the SSL_ALLOW_ADH compile option and set the default cipher
1603 list to exclude them. This means that no special compilation option
1604 is needed to use anonymous DH: it just needs to be included in the
1608 *) Change the EVP_MD_CTX_type macro so its meaning consistent with
1609 EVP_MD_type. The old functionality is available in a new macro called
1610 EVP_MD_md(). Change code that uses it and update docs.
1613 *) ..._ctrl functions now have corresponding ..._callback_ctrl functions
1614 where the 'void *' argument is replaced by a function pointer argument.
1615 Previously 'void *' was abused to point to functions, which works on
1616 many platforms, but is not correct. As these functions are usually
1617 called by macros defined in OpenSSL header files, most source code
1618 should work without changes.
1621 *) <openssl/opensslconf.h> (which is created by Configure) now contains
1622 sections with information on -D... compiler switches used for
1623 compiling the library so that applications can see them. To enable
1624 one of these sections, a pre-processor symbol OPENSSL_..._DEFINES
1625 must be defined. E.g.,
1626 #define OPENSSL_ALGORITHM_DEFINES
1627 #include <openssl/opensslconf.h>
1628 defines all pertinent NO_<algo> symbols, such as NO_IDEA, NO_RSA, etc.
1629 [Richard Levitte, Ulf and Bodo Möller]
1631 *) Bugfix: Tolerate fragmentation and interleaving in the SSL 3/TLS
1635 *) Change the 'other' type in certificate aux info to a STACK_OF
1636 X509_ALGOR. Although not an AlgorithmIdentifier as such it has
1637 the required ASN1 format: arbitrary types determined by an OID.
1640 *) Add some PEM_write_X509_REQ_NEW() functions and a command line
1641 argument to 'req'. This is not because the function is newer or
1642 better than others it just uses the work 'NEW' in the certificate
1643 request header lines. Some software needs this.
1646 *) Reorganise password command line arguments: now passwords can be
1647 obtained from various sources. Delete the PEM_cb function and make
1648 it the default behaviour: i.e. if the callback is NULL and the
1649 usrdata argument is not NULL interpret it as a null terminated pass
1650 phrase. If usrdata and the callback are NULL then the pass phrase
1651 is prompted for as usual.
1654 *) Add support for the Compaq Atalla crypto accelerator. If it is installed,
1655 the support is automatically enabled. The resulting binaries will
1656 autodetect the card and use it if present.
1657 [Ben Laurie and Compaq Inc.]
1659 *) Work around for Netscape hang bug. This sends certificate request
1660 and server done in one record. Since this is perfectly legal in the
1661 SSL/TLS protocol it isn't a "bug" option and is on by default. See
1662 the bugs/SSLv3 entry for more info.
1665 *) HP-UX tune-up: new unified configs, HP C compiler bug workaround.
1668 *) Add -rand argument to smime and pkcs12 applications and read/write
1672 *) New 'passwd' tool for crypt(3) and apr1 password hashes.
1675 *) Add command line password options to the remaining applications.
1678 *) Bug fix for BN_div_recp() for numerators with an even number of
1682 *) More tests in bntest.c, and changed test_bn output.
1685 *) ./config recognizes MacOS X now.
1688 *) Bug fix for BN_div() when the first words of num and divsor are
1689 equal (it gave wrong results if (rem=(n1-q*d0)&BN_MASK2) < d0).
1692 *) Add support for various broken PKCS#8 formats, and command line
1693 options to produce them.
1696 *) New functions BN_CTX_start(), BN_CTX_get() and BT_CTX_end() to
1697 get temporary BIGNUMs from a BN_CTX.
1700 *) Correct return values in BN_mod_exp_mont() and BN_mod_exp2_mont()
1704 *) Change the SSLeay_add_all_*() functions to OpenSSL_add_all_*() and
1705 include a #define from the old name to the new. The original intent
1706 was that statically linked binaries could for example just call
1707 SSLeay_add_all_ciphers() to just add ciphers to the table and not
1708 link with digests. This never worked becayse SSLeay_add_all_digests()
1709 and SSLeay_add_all_ciphers() were in the same source file so calling
1710 one would link with the other. They are now in separate source files.
1713 *) Add a new -notext option to 'ca' and a -pubkey option to 'spkac'.
1716 *) Use a less unusual form of the Miller-Rabin primality test (it used
1717 a binary algorithm for exponentiation integrated into the Miller-Rabin
1718 loop, our standard modexp algorithms are faster).
1721 *) Support for the EBCDIC character set completed.
1722 [Martin Kraemer <Martin.Kraemer@Mch.SNI.De>]
1724 *) Source code cleanups: use const where appropriate, eliminate casts,
1725 use void * instead of char * in lhash.
1728 *) Bugfix: ssl3_send_server_key_exchange was not restartable
1729 (the state was not changed to SSL3_ST_SW_KEY_EXCH_B, and because of
1730 this the server could overwrite ephemeral keys that the client
1734 *) Turn DSA_is_prime into a macro that calls BN_is_prime,
1735 using 50 iterations of the Rabin-Miller test.
1737 DSA_generate_parameters now uses BN_is_prime_fasttest (with 50
1738 iterations of the Rabin-Miller test as required by the appendix
1739 to FIPS PUB 186[-1]) instead of DSA_is_prime.
1740 As BN_is_prime_fasttest includes trial division, DSA parameter
1741 generation becomes much faster.
1743 This implies a change for the callback functions in DSA_is_prime
1744 and DSA_generate_parameters: The callback function is called once
1745 for each positive witness in the Rabin-Miller test, not just
1746 occasionally in the inner loop; and the parameters to the
1747 callback function now provide an iteration count for the outer
1748 loop rather than for the current invocation of the inner loop.
1749 DSA_generate_parameters additionally can call the callback
1750 function with an 'iteration count' of -1, meaning that a
1751 candidate has passed the trial division test (when q is generated
1752 from an application-provided seed, trial division is skipped).
1755 *) New function BN_is_prime_fasttest that optionally does trial
1756 division before starting the Rabin-Miller test and has
1757 an additional BN_CTX * argument (whereas BN_is_prime always
1758 has to allocate at least one BN_CTX).
1759 'callback(1, -1, cb_arg)' is called when a number has passed the
1760 trial division stage.
1763 *) Fix for bug in CRL encoding. The validity dates weren't being handled
1767 *) New -pkcs12 option to CA.pl script to write out a PKCS#12 file.
1770 *) New function BN_pseudo_rand().
1773 *) Clean up BN_mod_mul_montgomery(): replace the broken (and unreadable)
1774 bignum version of BN_from_montgomery() with the working code from
1775 SSLeay 0.9.0 (the word based version is faster anyway), and clean up
1779 *) Avoid a race condition in s2_clnt.c (function get_server_hello) that
1780 made it impossible to use the same SSL_SESSION data structure in
1781 SSL2 clients in multiple threads.
1784 *) The return value of RAND_load_file() no longer counts bytes obtained
1785 by stat(). RAND_load_file(..., -1) is new and uses the complete file
1786 to seed the PRNG (previously an explicit byte count was required).
1787 [Ulf Möller, Bodo Möller]
1789 *) Clean up CRYPTO_EX_DATA functions, some of these didn't have prototypes
1790 used (char *) instead of (void *) and had casts all over the place.
1793 *) Make BN_generate_prime() return NULL on error if ret!=NULL.
1796 *) Retain source code compatibility for BN_prime_checks macro:
1797 BN_is_prime(..., BN_prime_checks, ...) now uses
1798 BN_prime_checks_for_size to determine the appropriate number of
1799 Rabin-Miller iterations.
1802 *) Diffie-Hellman uses "safe" primes: DH_check() return code renamed to
1803 DH_CHECK_P_NOT_SAFE_PRIME.
1804 (Check if this is true? OpenPGP calls them "strong".)
1807 *) Merge the functionality of "dh" and "gendh" programs into a new program
1808 "dhparam". The old programs are retained for now but will handle DH keys
1809 (instead of parameters) in future.
1812 *) Make the ciphers, s_server and s_client programs check the return values
1813 when a new cipher list is set.
1816 *) Enhance the SSL/TLS cipher mechanism to correctly handle the TLS 56bit
1817 ciphers. Before when the 56bit ciphers were enabled the sorting was
1820 The syntax for the cipher sorting has been extended to support sorting by
1821 cipher-strength (using the strength_bits hard coded in the tables).
1822 The new command is "@STRENGTH" (see also doc/apps/ciphers.pod).
1824 Fix a bug in the cipher-command parser: when supplying a cipher command
1825 string with an "undefined" symbol (neither command nor alphanumeric
1826 [A-Za-z0-9], ssl_set_cipher_list used to hang in an endless loop. Now
1827 an error is flagged.
1829 Due to the strength-sorting extension, the code of the
1830 ssl_create_cipher_list() function was completely rearranged. I hope that
1831 the readability was also increased :-)
1832 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
1834 *) Minor change to 'x509' utility. The -CAcreateserial option now uses 1
1835 for the first serial number and places 2 in the serial number file. This
1836 avoids problems when the root CA is created with serial number zero and
1837 the first user certificate has the same issuer name and serial number
1841 *) Fixes to X509_ATTRIBUTE utilities, change the 'req' program so it uses
1842 the new code. Add documentation for this stuff.
1845 *) Changes to X509_ATTRIBUTE utilities. These have been renamed from
1846 X509_*() to X509at_*() on the grounds that they don't handle X509
1847 structures and behave in an analagous way to the X509v3 functions:
1848 they shouldn't be called directly but wrapper functions should be used
1851 So we also now have some wrapper functions that call the X509at functions
1852 when passed certificate requests. (TO DO: similar things can be done with
1853 PKCS#7 signed and unsigned attributes, PKCS#12 attributes and a few other
1854 things. Some of these need some d2i or i2d and print functionality
1855 because they handle more complex structures.)
1858 *) Add missing #ifndefs that caused missing symbols when building libssl
1859 as a shared library without RSA. Use #ifndef NO_SSL2 instead of
1860 NO_RSA in ssl/s2*.c.
1861 [Kris Kennaway <kris@hub.freebsd.org>, modified by Ulf Möller]
1863 *) Precautions against using the PRNG uninitialized: RAND_bytes() now
1864 has a return value which indicates the quality of the random data
1865 (1 = ok, 0 = not seeded). Also an error is recorded on the thread's
1866 error queue. New function RAND_pseudo_bytes() generates output that is
1867 guaranteed to be unique but not unpredictable. RAND_add is like
1868 RAND_seed, but takes an extra argument for an entropy estimate
1869 (RAND_seed always assumes full entropy).
1872 *) Do more iterations of Rabin-Miller probable prime test (specifically,
1873 3 for 1024-bit primes, 6 for 512-bit primes, 12 for 256-bit primes
1874 instead of only 2 for all lengths; see BN_prime_checks_for_size definition
1875 in crypto/bn/bn_prime.c for the complete table). This guarantees a
1876 false-positive rate of at most 2^-80 for random input.
1879 *) Rewrite ssl3_read_n (ssl/s3_pkt.c) avoiding a couple of bugs.
1882 *) New function X509_CTX_rget_chain() (renamed to X509_CTX_get1_chain
1883 in the 0.9.5 release), this returns the chain
1884 from an X509_CTX structure with a dup of the stack and all
1885 the X509 reference counts upped: so the stack will exist
1886 after X509_CTX_cleanup() has been called. Modify pkcs12.c
1889 Also make SSL_SESSION_print() print out the verify return
1893 *) Add manpage for the pkcs12 command. Also change the default
1894 behaviour so MAC iteration counts are used unless the new
1895 -nomaciter option is used. This improves file security and
1896 only older versions of MSIE (4.0 for example) need it.
1899 *) Honor the no-xxx Configure options when creating .DEF files.
1902 *) Add PKCS#10 attributes to field table: challengePassword,
1903 unstructuredName and unstructuredAddress. These are taken from
1904 draft PKCS#9 v2.0 but are compatible with v1.2 provided no
1905 international characters are used.
1907 More changes to X509_ATTRIBUTE code: allow the setting of types
1908 based on strings. Remove the 'loc' parameter when adding
1909 attributes because these will be a SET OF encoding which is sorted
1913 *) Initial changes to the 'req' utility to allow request generation
1914 automation. This will allow an application to just generate a template
1915 file containing all the field values and have req construct the
1918 Initial support for X509_ATTRIBUTE handling. Stacks of these are
1919 used all over the place including certificate requests and PKCS#7
1920 structures. They are currently handled manually where necessary with
1921 some primitive wrappers for PKCS#7. The new functions behave in a
1922 manner analogous to the X509 extension functions: they allow
1923 attributes to be looked up by NID and added.
1925 Later something similar to the X509V3 code would be desirable to
1926 automatically handle the encoding, decoding and printing of the
1927 more complex types. The string types like challengePassword can
1928 be handled by the string table functions.
1930 Also modified the multi byte string table handling. Now there is
1931 a 'global mask' which masks out certain types. The table itself
1932 can use the flag STABLE_NO_MASK to ignore the mask setting: this
1933 is useful when for example there is only one permissible type
1934 (as in countryName) and using the mask might result in no valid
1938 *) Clean up 'Finished' handling, and add functions SSL_get_finished and
1939 SSL_get_peer_finished to allow applications to obtain the latest
1940 Finished messages sent to the peer or expected from the peer,
1941 respectively. (SSL_get_peer_finished is usually the Finished message
1942 actually received from the peer, otherwise the protocol will be aborted.)
1944 As the Finished message are message digests of the complete handshake
1945 (with a total of 192 bits for TLS 1.0 and more for SSL 3.0), they can
1946 be used for external authentication procedures when the authentication
1947 provided by SSL/TLS is not desired or is not enough.
1950 *) Enhanced support for Alpha Linux is added. Now ./config checks if
1951 the host supports BWX extension and if Compaq C is present on the
1952 $PATH. Just exploiting of the BWX extension results in 20-30%
1953 performance kick for some algorithms, e.g. DES and RC4 to mention
1954 a couple. Compaq C in turn generates ~20% faster code for MD5 and
1958 *) Add support for MS "fast SGC". This is arguably a violation of the
1959 SSL3/TLS protocol. Netscape SGC does two handshakes: the first with
1960 weak crypto and after checking the certificate is SGC a second one
1961 with strong crypto. MS SGC stops the first handshake after receiving
1962 the server certificate message and sends a second client hello. Since
1963 a server will typically do all the time consuming operations before
1964 expecting any further messages from the client (server key exchange
1965 is the most expensive) there is little difference between the two.
1967 To get OpenSSL to support MS SGC we have to permit a second client
1968 hello message after we have sent server done. In addition we have to
1969 reset the MAC if we do get this second client hello.
1972 *) Add a function 'd2i_AutoPrivateKey()' this will automatically decide
1973 if a DER encoded private key is RSA or DSA traditional format. Changed
1974 d2i_PrivateKey_bio() to use it. This is only needed for the "traditional"
1975 format DER encoded private key. Newer code should use PKCS#8 format which
1976 has the key type encoded in the ASN1 structure. Added DER private key
1977 support to pkcs8 application.
1980 *) SSL 3/TLS 1 servers now don't request certificates when an anonymous
1981 ciphersuites has been selected (as required by the SSL 3/TLS 1
1982 specifications). Exception: When SSL_VERIFY_FAIL_IF_NO_PEER_CERT
1983 is set, we interpret this as a request to violate the specification
1984 (the worst that can happen is a handshake failure, and 'correct'
1985 behaviour would result in a handshake failure anyway).
1988 *) In SSL_CTX_add_session, take into account that there might be multiple
1989 SSL_SESSION structures with the same session ID (e.g. when two threads
1990 concurrently obtain them from an external cache).
1991 The internal cache can handle only one SSL_SESSION with a given ID,
1992 so if there's a conflict, we now throw out the old one to achieve
1996 *) Add OIDs for idea and blowfish in CBC mode. This will allow both
1997 to be used in PKCS#5 v2.0 and S/MIME. Also add checking to
1998 some routines that use cipher OIDs: some ciphers do not have OIDs
1999 defined and so they cannot be used for S/MIME and PKCS#5 v2.0 for
2003 *) Simplify the trust setting structure and code. Now we just have
2004 two sequences of OIDs for trusted and rejected settings. These will
2005 typically have values the same as the extended key usage extension
2006 and any application specific purposes.
2008 The trust checking code now has a default behaviour: it will just
2009 check for an object with the same NID as the passed id. Functions can
2010 be provided to override either the default behaviour or the behaviour
2011 for a given id. SSL client, server and email already have functions
2012 in place for compatibility: they check the NID and also return "trusted"
2013 if the certificate is self signed.
2016 *) Add d2i,i2d bio/fp functions for PrivateKey: these convert the
2017 traditional format into an EVP_PKEY structure.
2020 *) Add a password callback function PEM_cb() which either prompts for
2021 a password if usr_data is NULL or otherwise assumes it is a null
2022 terminated password. Allow passwords to be passed on command line
2023 environment or config files in a few more utilities.
2026 *) Add a bunch of DER and PEM functions to handle PKCS#8 format private
2027 keys. Add some short names for PKCS#8 PBE algorithms and allow them
2028 to be specified on the command line for the pkcs8 and pkcs12 utilities.
2029 Update documentation.
2032 *) Support for ASN1 "NULL" type. This could be handled before by using
2033 ASN1_TYPE but there wasn't any function that would try to read a NULL
2034 and produce an error if it couldn't. For compatibility we also have
2035 ASN1_NULL_new() and ASN1_NULL_free() functions but these are faked and
2036 don't allocate anything because they don't need to.
2039 *) Initial support for MacOS is now provided. Examine INSTALL.MacOS
2041 [Andy Polyakov, Roy Woods <roy@centicsystems.ca>]
2043 *) Rebuild of the memory allocation routines used by OpenSSL code and
2044 possibly others as well. The purpose is to make an interface that
2045 provide hooks so anyone can build a separate set of allocation and
2046 deallocation routines to be used by OpenSSL, for example memory
2047 pool implementations, or something else, which was previously hard
2048 since Malloc(), Realloc() and Free() were defined as macros having
2049 the values malloc, realloc and free, respectively (except for Win32
2050 compilations). The same is provided for memory debugging code.
2051 OpenSSL already comes with functionality to find memory leaks, but
2052 this gives people a chance to debug other memory problems.
2054 With these changes, a new set of functions and macros have appeared:
2056 CRYPTO_set_mem_debug_functions() [F]
2057 CRYPTO_get_mem_debug_functions() [F]
2058 CRYPTO_dbg_set_options() [F]
2059 CRYPTO_dbg_get_options() [F]
2060 CRYPTO_malloc_debug_init() [M]
2062 The memory debug functions are NULL by default, unless the library
2063 is compiled with CRYPTO_MDEBUG or friends is defined. If someone
2064 wants to debug memory anyway, CRYPTO_malloc_debug_init() (which
2065 gives the standard debugging functions that come with OpenSSL) or
2066 CRYPTO_set_mem_debug_functions() (tells OpenSSL to use functions
2067 provided by the library user) must be used. When the standard
2068 debugging functions are used, CRYPTO_dbg_set_options can be used to
2069 request additional information:
2070 CRYPTO_dbg_set_options(V_CYRPTO_MDEBUG_xxx) corresponds to setting
2071 the CRYPTO_MDEBUG_xxx macro when compiling the library.
2073 Also, things like CRYPTO_set_mem_functions will always give the
2074 expected result (the new set of functions is used for allocation
2075 and deallocation) at all times, regardless of platform and compiler
2078 To finish it up, some functions that were never use in any other
2079 way than through macros have a new API and new semantic:
2082 CRYPTO_dbg_realloc()
2085 All macros of value have retained their old syntax.
2086 [Richard Levitte and Bodo Moeller]
2088 *) Some S/MIME fixes. The OID for SMIMECapabilities was wrong, the
2089 ordering of SMIMECapabilities wasn't in "strength order" and there
2090 was a missing NULL in the AlgorithmIdentifier for the SHA1 signature
2094 *) Some ASN1 types with illegal zero length encoding (INTEGER,
2095 ENUMERATED and OBJECT IDENTIFIER) choked the ASN1 routines.
2096 [Frans Heymans <fheymans@isaserver.be>, modified by Steve Henson]
2098 *) Merge in my S/MIME library for OpenSSL. This provides a simple
2099 S/MIME API on top of the PKCS#7 code, a MIME parser (with enough
2100 functionality to handle multipart/signed properly) and a utility
2101 called 'smime' to call all this stuff. This is based on code I
2102 originally wrote for Celo who have kindly allowed it to be
2103 included in OpenSSL.
2106 *) Add variants des_set_key_checked and des_set_key_unchecked of
2107 des_set_key (aka des_key_sched). Global variable des_check_key
2108 decides which of these is called by des_set_key; this way
2109 des_check_key behaves as it always did, but applications and
2110 the library itself, which was buggy for des_check_key == 1,
2111 have a cleaner way to pick the version they need.
2114 *) New function PKCS12_newpass() which changes the password of a
2118 *) Modify X509_TRUST and X509_PURPOSE so it also uses a static and
2119 dynamic mix. In both cases the ids can be used as an index into the
2120 table. Also modified the X509_TRUST_add() and X509_PURPOSE_add()
2121 functions so they accept a list of the field values and the
2122 application doesn't need to directly manipulate the X509_TRUST
2126 *) Modify the ASN1_STRING_TABLE stuff so it also uses bsearch and doesn't
2130 *) Modify the way the V3 extension code looks up extensions. This now
2131 works in a similar way to the object code: we have some "standard"
2132 extensions in a static table which is searched with OBJ_bsearch()
2133 and the application can add dynamic ones if needed. The file
2134 crypto/x509v3/ext_dat.h now has the info: this file needs to be
2135 updated whenever a new extension is added to the core code and kept
2136 in ext_nid order. There is a simple program 'tabtest.c' which checks
2137 this. New extensions are not added too often so this file can readily
2138 be maintained manually.
2140 There are two big advantages in doing things this way. The extensions
2141 can be looked up immediately and no longer need to be "added" using
2142 X509V3_add_standard_extensions(): this function now does nothing.
2143 [Side note: I get *lots* of email saying the extension code doesn't
2144 work because people forget to call this function]
2145 Also no dynamic allocation is done unless new extensions are added:
2146 so if we don't add custom extensions there is no need to call
2147 X509V3_EXT_cleanup().
2150 *) Modify enc utility's salting as follows: make salting the default. Add a
2151 magic header, so unsalted files fail gracefully instead of just decrypting
2152 to garbage. This is because not salting is a big security hole, so people
2153 should be discouraged from doing it.
2156 *) Fixes and enhancements to the 'x509' utility. It allowed a message
2157 digest to be passed on the command line but it only used this
2158 parameter when signing a certificate. Modified so all relevant
2159 operations are affected by the digest parameter including the
2160 -fingerprint and -x509toreq options. Also -x509toreq choked if a
2161 DSA key was used because it didn't fix the digest.
2164 *) Initial certificate chain verify code. Currently tests the untrusted
2165 certificates for consistency with the verify purpose (which is set
2166 when the X509_STORE_CTX structure is set up) and checks the pathlength.
2168 There is a NO_CHAIN_VERIFY compilation option to keep the old behaviour:
2169 this is because it will reject chains with invalid extensions whereas
2170 every previous version of OpenSSL and SSLeay made no checks at all.
2172 Trust code: checks the root CA for the relevant trust settings. Trust
2173 settings have an initial value consistent with the verify purpose: e.g.
2174 if the verify purpose is for SSL client use it expects the CA to be
2175 trusted for SSL client use. However the default value can be changed to
2176 permit custom trust settings: one example of this would be to only trust
2177 certificates from a specific "secure" set of CAs.
2179 Also added X509_STORE_CTX_new() and X509_STORE_CTX_free() functions
2180 which should be used for version portability: especially since the
2181 verify structure is likely to change more often now.
2183 SSL integration. Add purpose and trust to SSL_CTX and SSL and functions
2184 to set them. If not set then assume SSL clients will verify SSL servers
2187 Two new options to the verify program: -untrusted allows a set of
2188 untrusted certificates to be passed in and -purpose which sets the
2189 intended purpose of the certificate. If a purpose is set then the
2190 new chain verify code is used to check extension consistency.
2193 *) Support for the authority information access extension.
2196 *) Modify RSA and DSA PEM read routines to transparently handle
2197 PKCS#8 format private keys. New *_PUBKEY_* functions that handle
2198 public keys in a format compatible with certificate
2199 SubjectPublicKeyInfo structures. Unfortunately there were already
2200 functions called *_PublicKey_* which used various odd formats so
2201 these are retained for compatibility: however the DSA variants were
2202 never in a public release so they have been deleted. Changed dsa/rsa
2203 utilities to handle the new format: note no releases ever handled public
2204 keys so we should be OK.
2206 The primary motivation for this change is to avoid the same fiasco
2207 that dogs private keys: there are several incompatible private key
2208 formats some of which are standard and some OpenSSL specific and
2209 require various evil hacks to allow partial transparent handling and
2210 even then it doesn't work with DER formats. Given the option anything
2211 other than PKCS#8 should be dumped: but the other formats have to
2212 stay in the name of compatibility.
2214 With public keys and the benefit of hindsight one standard format
2215 is used which works with EVP_PKEY, RSA or DSA structures: though
2216 it clearly returns an error if you try to read the wrong kind of key.
2218 Added a -pubkey option to the 'x509' utility to output the public key.
2219 Also rename the EVP_PKEY_get_*() to EVP_PKEY_rget_*()
2220 (renamed to EVP_PKEY_get1_*() in the OpenSSL 0.9.5 release) and add
2221 EVP_PKEY_rset_*() functions (renamed to EVP_PKEY_set1_*())
2222 that do the same as the EVP_PKEY_assign_*() except they up the
2223 reference count of the added key (they don't "swallow" the
2227 *) Fixes to crypto/x509/by_file.c the code to read in certificates and
2228 CRLs would fail if the file contained no certificates or no CRLs:
2229 added a new function to read in both types and return the number
2230 read: this means that if none are read it will be an error. The
2231 DER versions of the certificate and CRL reader would always fail
2232 because it isn't possible to mix certificates and CRLs in DER format
2233 without choking one or the other routine. Changed this to just read
2234 a certificate: this is the best we can do. Also modified the code
2235 in apps/verify.c to take notice of return codes: it was previously
2236 attempting to read in certificates from NULL pointers and ignoring
2237 any errors: this is one reason why the cert and CRL reader seemed
2238 to work. It doesn't check return codes from the default certificate
2239 routines: these may well fail if the certificates aren't installed.
2242 *) Code to support otherName option in GeneralName.
2245 *) First update to verify code. Change the verify utility
2246 so it warns if it is passed a self signed certificate:
2247 for consistency with the normal behaviour. X509_verify
2248 has been modified to it will now verify a self signed
2249 certificate if *exactly* the same certificate appears
2250 in the store: it was previously impossible to trust a
2251 single self signed certificate. This means that:
2252 openssl verify ss.pem
2253 now gives a warning about a self signed certificate but
2254 openssl verify -CAfile ss.pem ss.pem
2258 *) For servers, store verify_result in SSL_SESSION data structure
2259 (and add it to external session representation).
2260 This is needed when client certificate verifications fails,
2261 but an application-provided verification callback (set by
2262 SSL_CTX_set_cert_verify_callback) allows accepting the session
2263 anyway (i.e. leaves x509_store_ctx->error != X509_V_OK
2264 but returns 1): When the session is reused, we have to set
2265 ssl->verify_result to the appropriate error code to avoid
2267 [Bodo Moeller, problem pointed out by Lutz Jaenicke]
2269 *) Fix a bug in the new PKCS#7 code: it didn't consider the
2270 case in PKCS7_dataInit() where the signed PKCS7 structure
2271 didn't contain any existing data because it was being created.
2272 [Po-Cheng Chen <pocheng@nst.com.tw>, slightly modified by Steve Henson]
2274 *) Add a salt to the key derivation routines in enc.c. This
2275 forms the first 8 bytes of the encrypted file. Also add a
2276 -S option to allow a salt to be input on the command line.
2279 *) New function X509_cmp(). Oddly enough there wasn't a function
2280 to compare two certificates. We do this by working out the SHA1
2281 hash and comparing that. X509_cmp() will be needed by the trust
2285 *) SSL_get1_session() is like SSL_get_session(), but increments
2286 the reference count in the SSL_SESSION returned.
2287 [Geoff Thorpe <geoff@eu.c2.net>]
2289 *) Fix for 'req': it was adding a null to request attributes.
2290 Also change the X509_LOOKUP and X509_INFO code to handle
2291 certificate auxiliary information.
2294 *) Add support for 40 and 64 bit RC2 and RC4 algorithms: document
2298 *) Add the possibility to add extra information to the memory leak
2299 detecting output, to form tracebacks, showing from where each
2300 allocation was originated: CRYPTO_push_info("constant string") adds
2301 the string plus current file name and line number to a per-thread
2302 stack, CRYPTO_pop_info() does the obvious, CRYPTO_remove_all_info()
2303 is like calling CYRPTO_pop_info() until the stack is empty.
2304 Also updated memory leak detection code to be multi-thread-safe.
2307 *) Add options -text and -noout to pkcs7 utility and delete the
2308 encryption options which never did anything. Update docs.
2311 *) Add options to some of the utilities to allow the pass phrase
2312 to be included on either the command line (not recommended on
2313 OSes like Unix) or read from the environment. Update the
2314 manpages and fix a few bugs.
2317 *) Add a few manpages for some of the openssl commands.
2320 *) Fix the -revoke option in ca. It was freeing up memory twice,
2321 leaking and not finding already revoked certificates.
2324 *) Extensive changes to support certificate auxiliary information.
2325 This involves the use of X509_CERT_AUX structure and X509_AUX
2326 functions. An X509_AUX function such as PEM_read_X509_AUX()
2327 can still read in a certificate file in the usual way but it
2328 will also read in any additional "auxiliary information". By
2329 doing things this way a fair degree of compatibility can be
2330 retained: existing certificates can have this information added
2331 using the new 'x509' options.
2333 Current auxiliary information includes an "alias" and some trust
2334 settings. The trust settings will ultimately be used in enhanced
2335 certificate chain verification routines: currently a certificate
2336 can only be trusted if it is self signed and then it is trusted
2340 *) Fix assembler for Alpha (tested only on DEC OSF not Linux or *BSD).
2341 The problem was that one of the replacement routines had not been working
2342 since SSLeay releases. For now the offending routine has been replaced
2343 with non-optimised assembler. Even so, this now gives around 95%
2344 performance improvement for 1024 bit RSA signs.
2347 *) Hack to fix PKCS#7 decryption when used with some unorthodox RC2
2348 handling. Most clients have the effective key size in bits equal to
2349 the key length in bits: so a 40 bit RC2 key uses a 40 bit (5 byte) key.
2350 A few however don't do this and instead use the size of the decrypted key
2351 to determine the RC2 key length and the AlgorithmIdentifier to determine
2352 the effective key length. In this case the effective key length can still
2353 be 40 bits but the key length can be 168 bits for example. This is fixed
2354 by manually forcing an RC2 key into the EVP_PKEY structure because the
2355 EVP code can't currently handle unusual RC2 key sizes: it always assumes
2356 the key length and effective key length are equal.
2359 *) Add a bunch of functions that should simplify the creation of
2360 X509_NAME structures. Now you should be able to do:
2361 X509_NAME_add_entry_by_txt(nm, "CN", MBSTRING_ASC, "Steve", -1, -1, 0);
2362 and have it automatically work out the correct field type and fill in
2363 the structures. The more adventurous can try:
2364 X509_NAME_add_entry_by_txt(nm, field, MBSTRING_UTF8, str, -1, -1, 0);
2365 and it will (hopefully) work out the correct multibyte encoding.
2368 *) Change the 'req' utility to use the new field handling and multibyte
2369 copy routines. Before the DN field creation was handled in an ad hoc
2370 way in req, ca, and x509 which was rather broken and didn't support
2371 BMPStrings or UTF8Strings. Since some software doesn't implement
2372 BMPStrings or UTF8Strings yet, they can be enabled using the config file
2373 using the dirstring_type option. See the new comment in the default
2374 openssl.cnf for more info.
2377 *) Make crypto/rand/md_rand.c more robust:
2378 - Assure unique random numbers after fork().
2379 - Make sure that concurrent threads access the global counter and
2380 md serializably so that we never lose entropy in them
2381 or use exactly the same state in multiple threads.
2382 Access to the large state is not always serializable because
2383 the additional locking could be a performance killer, and
2384 md should be large enough anyway.
2387 *) New file apps/app_rand.c with commonly needed functionality
2388 for handling the random seed file.
2390 Use the random seed file in some applications that previously did not:
2392 dsaparam -genkey (which also ignored its '-rand' option),
2395 x509 (when signing).
2396 Except on systems with /dev/urandom, it is crucial to have a random
2397 seed file at least for key creation, DSA signing, and for DH exchanges;
2398 for RSA signatures we could do without one.
2400 gendh and gendsa (unlike genrsa) used to read only the first byte
2401 of each file listed in the '-rand' option. The function as previously
2402 found in genrsa is now in app_rand.c and is used by all programs
2403 that support '-rand'.
2406 *) In RAND_write_file, use mode 0600 for creating files;
2407 don't just chmod when it may be too late.
2410 *) Report an error from X509_STORE_load_locations
2411 when X509_LOOKUP_load_file or X509_LOOKUP_add_dir failed.
2414 *) New function ASN1_mbstring_copy() this copies a string in either
2415 ASCII, Unicode, Universal (4 bytes per character) or UTF8 format
2416 into an ASN1_STRING type. A mask of permissible types is passed
2417 and it chooses the "minimal" type to use or an error if not type
2421 *) Add function equivalents to the various macros in asn1.h. The old
2422 macros are retained with an M_ prefix. Code inside the library can
2423 use the M_ macros. External code (including the openssl utility)
2424 should *NOT* in order to be "shared library friendly".
2427 *) Add various functions that can check a certificate's extensions
2428 to see if it usable for various purposes such as SSL client,
2429 server or S/MIME and CAs of these types. This is currently
2430 VERY EXPERIMENTAL but will ultimately be used for certificate chain
2431 verification. Also added a -purpose flag to x509 utility to
2432 print out all the purposes.
2435 *) Add a CRYPTO_EX_DATA to X509 certificate structure and associated
2439 *) New X509V3_{X509,CRL,REVOKED}_get_d2i() functions. These will search
2440 for, obtain and decode and extension and obtain its critical flag.
2441 This allows all the necessary extension code to be handled in a
2442 single function call.
2445 *) RC4 tune-up featuring 30-40% performance improvement on most RISC
2446 platforms. See crypto/rc4/rc4_enc.c for further details.
2449 *) New -noout option to asn1parse. This causes no output to be produced
2450 its main use is when combined with -strparse and -out to extract data
2451 from a file (which may not be in ASN.1 format).
2454 *) Fix for pkcs12 program. It was hashing an invalid certificate pointer
2455 when producing the local key id.
2456 [Richard Levitte <levitte@stacken.kth.se>]
2458 *) New option -dhparam in s_server. This allows a DH parameter file to be
2459 stated explicitly. If it is not stated then it tries the first server
2460 certificate file. The previous behaviour hard coded the filename
2464 *) Add -pubin and -pubout options to the rsa and dsa commands. These allow
2465 a public key to be input or output. For example:
2466 openssl rsa -in key.pem -pubout -out pubkey.pem
2467 Also added necessary DSA public key functions to handle this.
2470 *) Fix so PKCS7_dataVerify() doesn't crash if no certificates are contained
2471 in the message. This was handled by allowing
2472 X509_find_by_issuer_and_serial() to tolerate a NULL passed to it.
2473 [Steve Henson, reported by Sampo Kellomaki <sampo@mail.neuronio.pt>]
2475 *) Fix for bug in d2i_ASN1_bytes(): other ASN1 functions add an extra null
2476 to the end of the strings whereas this didn't. This would cause problems
2477 if strings read with d2i_ASN1_bytes() were later modified.
2478 [Steve Henson, reported by Arne Ansper <arne@ats.cyber.ee>]
2480 *) Fix for base64 decode bug. When a base64 bio reads only one line of
2481 data and it contains EOF it will end up returning an error. This is
2482 caused by input 46 bytes long. The cause is due to the way base64
2483 BIOs find the start of base64 encoded data. They do this by trying a
2484 trial decode on each line until they find one that works. When they
2485 do a flag is set and it starts again knowing it can pass all the
2486 data directly through the decoder. Unfortunately it doesn't reset
2487 the context it uses. This means that if EOF is reached an attempt
2488 is made to pass two EOFs through the context and this causes the
2489 resulting error. This can also cause other problems as well. As is
2490 usual with these problems it takes *ages* to find and the fix is
2491 trivial: move one line.
2492 [Steve Henson, reported by ian@uns.ns.ac.yu (Ivan Nejgebauer) ]
2494 *) Ugly workaround to get s_client and s_server working under Windows. The
2495 old code wouldn't work because it needed to select() on sockets and the
2496 tty (for keypresses and to see if data could be written). Win32 only
2497 supports select() on sockets so we select() with a 1s timeout on the
2498 sockets and then see if any characters are waiting to be read, if none
2499 are present then we retry, we also assume we can always write data to
2500 the tty. This isn't nice because the code then blocks until we've
2501 received a complete line of data and it is effectively polling the
2502 keyboard at 1s intervals: however it's quite a bit better than not
2503 working at all :-) A dedicated Windows application might handle this
2504 with an event loop for example.
2507 *) Enhance RSA_METHOD structure. Now there are two extra methods, rsa_sign
2508 and rsa_verify. When the RSA_FLAGS_SIGN_VER option is set these functions
2509 will be called when RSA_sign() and RSA_verify() are used. This is useful
2510 if rsa_pub_dec() and rsa_priv_enc() equivalents are not available.
2511 For this to work properly RSA_public_decrypt() and RSA_private_encrypt()
2512 should *not* be used: RSA_sign() and RSA_verify() must be used instead.
2513 This necessitated the support of an extra signature type NID_md5_sha1
2514 for SSL signatures and modifications to the SSL library to use it instead
2515 of calling RSA_public_decrypt() and RSA_private_encrypt().
2518 *) Add new -verify -CAfile and -CApath options to the crl program, these
2519 will lookup a CRL issuers certificate and verify the signature in a
2520 similar way to the verify program. Tidy up the crl program so it
2521 no longer accesses structures directly. Make the ASN1 CRL parsing a bit
2522 less strict. It will now permit CRL extensions even if it is not
2523 a V2 CRL: this will allow it to tolerate some broken CRLs.
2526 *) Initialize all non-automatic variables each time one of the openssl
2527 sub-programs is started (this is necessary as they may be started
2528 multiple times from the "OpenSSL>" prompt).
2529 [Lennart Bang, Bodo Moeller]
2531 *) Preliminary compilation option RSA_NULL which disables RSA crypto without
2532 removing all other RSA functionality (this is what NO_RSA does). This
2533 is so (for example) those in the US can disable those operations covered
2534 by the RSA patent while allowing storage and parsing of RSA keys and RSA
2538 *) Non-copying interface to BIO pairs.
2539 (still largely untested)
2542 *) New function ANS1_tag2str() to convert an ASN1 tag to a descriptive
2543 ASCII string. This was handled independently in various places before.
2546 *) New functions UTF8_getc() and UTF8_putc() that parse and generate
2547 UTF8 strings a character at a time.
2550 *) Use client_version from client hello to select the protocol
2551 (s23_srvr.c) and for RSA client key exchange verification
2552 (s3_srvr.c), as required by the SSL 3.0/TLS 1.0 specifications.
2555 *) Add various utility functions to handle SPKACs, these were previously
2556 handled by poking round in the structure internals. Added new function
2557 NETSCAPE_SPKI_print() to print out SPKAC and a new utility 'spkac' to
2558 print, verify and generate SPKACs. Based on an original idea from
2559 Massimiliano Pala <madwolf@comune.modena.it> but extensively modified.
2562 *) RIPEMD160 is operational on all platforms and is back in 'make test'.
2565 *) Allow the config file extension section to be overwritten on the
2566 command line. Based on an original idea from Massimiliano Pala
2567 <madwolf@comune.modena.it>. The new option is called -extensions
2568 and can be applied to ca, req and x509. Also -reqexts to override
2569 the request extensions in req and -crlexts to override the crl extensions
2573 *) Add new feature to the SPKAC handling in ca. Now you can include
2574 the same field multiple times by preceding it by "XXXX." for example:
2577 this is the same syntax as used in the req config file.
2580 *) Allow certificate extensions to be added to certificate requests. These
2581 are specified in a 'req_extensions' option of the req section of the
2582 config file. They can be printed out with the -text option to req but
2583 are otherwise ignored at present.
2586 *) Fix a horrible bug in enc_read() in crypto/evp/bio_enc.c: if the first
2587 data read consists of only the final block it would not decrypted because
2588 EVP_CipherUpdate() would correctly report zero bytes had been decrypted.
2589 A misplaced 'break' also meant the decrypted final block might not be
2590 copied until the next read.
2593 *) Initial support for DH_METHOD. Again based on RSA_METHOD. Also added
2594 a few extra parameters to the DH structure: these will be useful if
2595 for example we want the value of 'q' or implement X9.42 DH.
2598 *) Initial support for DSA_METHOD. This is based on the RSA_METHOD and
2599 provides hooks that allow the default DSA functions or functions on a
2600 "per key" basis to be replaced. This allows hardware acceleration and
2601 hardware key storage to be handled without major modification to the
2602 library. Also added low level modexp hooks and CRYPTO_EX structure and
2603 associated functions.
2606 *) Add a new flag to memory BIOs, BIO_FLAG_MEM_RDONLY. This marks the BIO
2607 as "read only": it can't be written to and the buffer it points to will
2608 not be freed. Reading from a read only BIO is much more efficient than
2609 a normal memory BIO. This was added because there are several times when
2610 an area of memory needs to be read from a BIO. The previous method was
2611 to create a memory BIO and write the data to it, this results in two
2612 copies of the data and an O(n^2) reading algorithm. There is a new
2613 function BIO_new_mem_buf() which creates a read only memory BIO from
2614 an area of memory. Also modified the PKCS#7 routines to use read only
2618 *) Bugfix: ssl23_get_client_hello did not work properly when called in
2619 state SSL23_ST_SR_CLNT_HELLO_B, i.e. when the first 7 bytes of
2620 a SSLv2-compatible client hello for SSLv3 or TLSv1 could be read,
2621 but a retry condition occured while trying to read the rest.
2624 *) The PKCS7_ENC_CONTENT_new() function was setting the content type as
2625 NID_pkcs7_encrypted by default: this was wrong since this should almost
2626 always be NID_pkcs7_data. Also modified the PKCS7_set_type() to handle
2627 the encrypted data type: this is a more sensible place to put it and it
2628 allows the PKCS#12 code to be tidied up that duplicated this
2632 *) Changed obj_dat.pl script so it takes its input and output files on
2633 the command line. This should avoid shell escape redirection problems
2637 *) Initial support for certificate extension requests, these are included
2638 in things like Xenroll certificate requests. Included functions to allow
2639 extensions to be obtained and added.
2642 *) -crlf option to s_client and s_server for sending newlines as
2643 CRLF (as required by many protocols).
2646 Changes between 0.9.3a and 0.9.4 [09 Aug 1999]
2648 *) Install libRSAglue.a when OpenSSL is built with RSAref.
2649 [Ralf S. Engelschall]
2651 *) A few more ``#ifndef NO_FP_API / #endif'' pairs for consistency.
2652 [Andrija Antonijevic <TheAntony2@bigfoot.com>]
2654 *) Fix -startdate and -enddate (which was missing) arguments to 'ca'
2658 *) New function DSA_dup_DH, which duplicates DSA parameters/keys as
2659 DH parameters/keys (q is lost during that conversion, but the resulting
2660 DH parameters contain its length).
2662 For 1024-bit p, DSA_generate_parameters followed by DSA_dup_DH is
2663 much faster than DH_generate_parameters (which creates parameters
2664 where p = 2*q + 1), and also the smaller q makes DH computations
2665 much more efficient (160-bit exponentiation instead of 1024-bit
2666 exponentiation); so this provides a convenient way to support DHE
2667 ciphersuites in SSL/TLS servers (see ssl/ssltest.c). It is of
2668 utter importance to use
2669 SSL_CTX_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
2671 SSL_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
2672 when such DH parameters are used, because otherwise small subgroup
2673 attacks may become possible!
2676 *) Avoid memory leak in i2d_DHparams.
2679 *) Allow the -k option to be used more than once in the enc program:
2680 this allows the same encrypted message to be read by multiple recipients.
2683 *) New function OBJ_obj2txt(buf, buf_len, a, no_name), this converts
2684 an ASN1_OBJECT to a text string. If the "no_name" parameter is set then
2685 it will always use the numerical form of the OID, even if it has a short
2689 *) Added an extra RSA flag: RSA_FLAG_EXT_PKEY. Previously the rsa_mod_exp
2690 method only got called if p,q,dmp1,dmq1,iqmp components were present,
2691 otherwise bn_mod_exp was called. In the case of hardware keys for example
2692 no private key components need be present and it might store extra data
2693 in the RSA structure, which cannot be accessed from bn_mod_exp.
2694 By setting RSA_FLAG_EXT_PKEY rsa_mod_exp will always be called for
2695 private key operations.
2698 *) Added support for SPARC Linux.
2701 *) pem_password_cb function type incompatibly changed from
2702 typedef int pem_password_cb(char *buf, int size, int rwflag);
2704 ....(char *buf, int size, int rwflag, void *userdata);
2705 so that applications can pass data to their callbacks:
2706 The PEM[_ASN1]_{read,write}... functions and macros now take an
2707 additional void * argument, which is just handed through whenever
2708 the password callback is called.
2709 [Damien Miller <dmiller@ilogic.com.au>; tiny changes by Bodo Moeller]
2711 New function SSL_CTX_set_default_passwd_cb_userdata.
2713 Compatibility note: As many C implementations push function arguments
2714 onto the stack in reverse order, the new library version is likely to
2715 interoperate with programs that have been compiled with the old
2716 pem_password_cb definition (PEM_whatever takes some data that
2717 happens to be on the stack as its last argument, and the callback
2718 just ignores this garbage); but there is no guarantee whatsoever that
2721 *) The -DPLATFORM="\"$(PLATFORM)\"" definition and the similar -DCFLAGS=...
2722 (both in crypto/Makefile.ssl for use by crypto/cversion.c) caused
2723 problems not only on Windows, but also on some Unix platforms.
2724 To avoid problematic command lines, these definitions are now in an
2725 auto-generated file crypto/buildinf.h (created by crypto/Makefile.ssl
2726 for standard "make" builds, by util/mk1mf.pl for "mk1mf" builds).
2729 *) MIPS III/IV assembler module is reimplemented.
2732 *) More DES library cleanups: remove references to srand/rand and
2733 delete an unused file.
2736 *) Add support for the the free Netwide assembler (NASM) under Win32,
2737 since not many people have MASM (ml) and it can be hard to obtain.
2738 This is currently experimental but it seems to work OK and pass all
2739 the tests. Check out INSTALL.W32 for info.
2742 *) Fix memory leaks in s3_clnt.c: All non-anonymous SSL3/TLS1 connections
2743 without temporary keys kept an extra copy of the server key,
2744 and connections with temporary keys did not free everything in case
2748 *) New function RSA_check_key and new openssl rsa option -check
2749 for verifying the consistency of RSA keys.
2750 [Ulf Moeller, Bodo Moeller]
2752 *) Various changes to make Win32 compile work:
2753 1. Casts to avoid "loss of data" warnings in p5_crpt2.c
2754 2. Change unsigned int to int in b_dump.c to avoid "signed/unsigned
2755 comparison" warnings.
2756 3. Add sk_<TYPE>_sort to DEF file generator and do make update.
2759 *) Add a debugging option to PKCS#5 v2 key generation function: when
2760 you #define DEBUG_PKCS5V2 passwords, salts, iteration counts and
2761 derived keys are printed to stderr.
2764 *) Copy the flags in ASN1_STRING_dup().
2765 [Roman E. Pavlov <pre@mo.msk.ru>]
2767 *) The x509 application mishandled signing requests containing DSA
2768 keys when the signing key was also DSA and the parameters didn't match.
2770 It was supposed to omit the parameters when they matched the signing key:
2771 the verifying software was then supposed to automatically use the CA's
2772 parameters if they were absent from the end user certificate.
2774 Omitting parameters is no longer recommended. The test was also
2775 the wrong way round! This was probably due to unusual behaviour in
2776 EVP_cmp_parameters() which returns 1 if the parameters match.
2777 This meant that parameters were omitted when they *didn't* match and
2778 the certificate was useless. Certificates signed with 'ca' didn't have
2780 [Steve Henson, reported by Doug Erickson <Doug.Erickson@Part.NET>]
2782 *) Memory leak checking (-DCRYPTO_MDEBUG) had some problems.
2783 The interface is as follows:
2784 Applications can use
2785 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON) aka MemCheck_start(),
2786 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_OFF) aka MemCheck_stop();
2787 "off" is now the default.
2788 The library internally uses
2789 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_DISABLE) aka MemCheck_off(),
2790 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ENABLE) aka MemCheck_on()
2791 to disable memory-checking temporarily.
2793 Some inconsistent states that previously were possible (and were
2794 even the default) are now avoided.
2796 -DCRYPTO_MDEBUG_TIME is new and additionally stores the current time
2797 with each memory chunk allocated; this is occasionally more helpful
2798 than just having a counter.
2800 -DCRYPTO_MDEBUG_THREAD is also new and adds the thread ID.
2802 -DCRYPTO_MDEBUG_ALL enables all of the above, plus any future
2806 *) Introduce "mode" for SSL structures (with defaults in SSL_CTX),
2807 which largely parallels "options", but is for changing API behaviour,
2808 whereas "options" are about protocol behaviour.
2809 Initial "mode" flags are:
2811 SSL_MODE_ENABLE_PARTIAL_WRITE Allow SSL_write to report success when
2812 a single record has been written.
2813 SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER Don't insist that SSL_write
2814 retries use the same buffer location.
2815 (But all of the contents must be
2819 *) Bugfix: SSL_set_mode ignored its parameter, only SSL_CTX_set_mode
2822 *) Fix problems with no-hmac etc.
2823 [Ulf Möller, pointed out by Brian Wellington <bwelling@tislabs.com>]
2825 *) New functions RSA_get_default_method(), RSA_set_method() and
2826 RSA_get_method(). These allows replacement of RSA_METHODs without having
2827 to mess around with the internals of an RSA structure.
2830 *) Fix memory leaks in DSA_do_sign and DSA_is_prime.
2831 Also really enable memory leak checks in openssl.c and in some
2833 [Chad C. Mulligan, Bodo Moeller]
2835 *) Fix a bug in d2i_ASN1_INTEGER() and i2d_ASN1_INTEGER() which can mess
2836 up the length of negative integers. This has now been simplified to just
2837 store the length when it is first determined and use it later, rather
2838 than trying to keep track of where data is copied and updating it to
2840 [Steve Henson, reported by Brien Wheeler
2841 <bwheeler@authentica-security.com>]
2843 *) Add a new function PKCS7_signatureVerify. This allows the verification
2844 of a PKCS#7 signature but with the signing certificate passed to the
2845 function itself. This contrasts with PKCS7_dataVerify which assumes the
2846 certificate is present in the PKCS#7 structure. This isn't always the
2847 case: certificates can be omitted from a PKCS#7 structure and be
2848 distributed by "out of band" means (such as a certificate database).
2851 *) Complete the PEM_* macros with DECLARE_PEM versions to replace the
2852 function prototypes in pem.h, also change util/mkdef.pl to add the
2853 necessary function names.
2856 *) mk1mf.pl (used by Windows builds) did not properly read the
2857 options set by Configure in the top level Makefile, and Configure
2858 was not even able to write more than one option correctly.
2859 Fixed, now "no-idea no-rc5 -DCRYPTO_MDEBUG" etc. works as intended.
2862 *) New functions CONF_load_bio() and CONF_load_fp() to allow a config
2863 file to be loaded from a BIO or FILE pointer. The BIO version will
2864 for example allow memory BIOs to contain config info.
2867 *) New function "CRYPTO_num_locks" that returns CRYPTO_NUM_LOCKS.
2868 Whoever hopes to achieve shared-library compatibility across versions
2869 must use this, not the compile-time macro.
2870 (Exercise 0.9.4: Which is the minimum library version required by
2872 Note: All this applies only to multi-threaded programs, others don't
2876 *) Add missing case to s3_clnt.c state machine -- one of the new SSL tests
2877 through a BIO pair triggered the default case, i.e.
2878 SSLerr(...,SSL_R_UNKNOWN_STATE).
2881 *) New "BIO pair" concept (crypto/bio/bss_bio.c) so that applications
2882 can use the SSL library even if none of the specific BIOs is
2886 *) Fix a bug in i2d_DSAPublicKey() which meant it returned the wrong value
2887 for the encoded length.
2888 [Jeon KyoungHo <khjeon@sds.samsung.co.kr>]
2890 *) Add initial documentation of the X509V3 functions.
2893 *) Add a new pair of functions PEM_write_PKCS8PrivateKey() and
2894 PEM_write_bio_PKCS8PrivateKey() that are equivalent to
2895 PEM_write_PrivateKey() and PEM_write_bio_PrivateKey() but use the more
2896 secure PKCS#8 private key format with a high iteration count.
2899 *) Fix determination of Perl interpreter: A perl or perl5
2900 _directory_ in $PATH was also accepted as the interpreter.
2901 [Ralf S. Engelschall]
2903 *) Fix demos/sign/sign.c: well there wasn't anything strictly speaking
2904 wrong with it but it was very old and did things like calling
2905 PEM_ASN1_read() directly and used MD5 for the hash not to mention some
2909 *) Fix demos/selfsign.c: it used obsolete and deleted functions, changed
2910 to use the new extension code.
2913 *) Implement the PEM_read/PEM_write functions in crypto/pem/pem_all.c
2914 with macros. This should make it easier to change their form, add extra
2915 arguments etc. Fix a few PEM prototypes which didn't have cipher as a
2919 *) Add to configuration table a new entry that can specify an alternative
2920 name for unistd.h (for pre-POSIX systems); we need this for NeXTstep,
2921 according to Mark Crispin <MRC@Panda.COM>.
2925 *) DES CBC did not update the IV. Weird.
2928 des_cbc_encrypt does not update the IV, but des_ncbc_encrypt does.
2929 Changing the behaviour of the former might break existing programs --
2930 where IV updating is needed, des_ncbc_encrypt can be used.
2933 *) When bntest is run from "make test" it drives bc to check its
2934 calculations, as well as internally checking them. If an internal check
2935 fails, it needs to cause bc to give a non-zero result or make test carries
2936 on without noticing the failure. Fixed.
2939 *) DES library cleanups.
2942 *) Add support for PKCS#5 v2.0 PBE algorithms. This will permit PKCS#8 to be
2943 used with any cipher unlike PKCS#5 v1.5 which can at most handle 64 bit
2944 ciphers. NOTE: although the key derivation function has been verified
2945 against some published test vectors it has not been extensively tested
2946 yet. Added a -v2 "cipher" option to pkcs8 application to allow the use
2950 *) Instead of "mkdir -p", which is not fully portable, use new
2951 Perl script "util/mkdir-p.pl".
2954 *) Rewrite the way password based encryption (PBE) is handled. It used to
2955 assume that the ASN1 AlgorithmIdentifier parameter was a PBEParameter
2956 structure. This was true for the PKCS#5 v1.5 and PKCS#12 PBE algorithms
2957 but doesn't apply to PKCS#5 v2.0 where it can be something else. Now
2958 the 'parameter' field of the AlgorithmIdentifier is passed to the
2959 underlying key generation function so it must do its own ASN1 parsing.
2960 This has also changed the EVP_PBE_CipherInit() function which now has a
2961 'parameter' argument instead of literal salt and iteration count values
2962 and the function EVP_PBE_ALGOR_CipherInit() has been deleted.
2965 *) Support for PKCS#5 v1.5 compatible password based encryption algorithms
2966 and PKCS#8 functionality. New 'pkcs8' application linked to openssl.
2967 Needed to change the PEM_STRING_EVP_PKEY value which was just "PRIVATE
2968 KEY" because this clashed with PKCS#8 unencrypted string. Since this
2969 value was just used as a "magic string" and not used directly its
2970 value doesn't matter.
2973 *) Introduce some semblance of const correctness to BN. Shame C doesn't
2977 *) "linux-sparc64" configuration (ultrapenguin).
2978 [Ray Miller <ray.miller@oucs.ox.ac.uk>]
2979 "linux-sparc" configuration.
2980 [Christian Forster <fo@hawo.stw.uni-erlangen.de>]
2982 *) config now generates no-xxx options for missing ciphers.
2985 *) Support the EBCDIC character set (work in progress).
2986 File ebcdic.c not yet included because it has a different license.
2987 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
2989 *) Support BS2000/OSD-POSIX.
2990 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
2992 *) Make callbacks for key generation use void * instead of char *.
2995 *) Make S/MIME samples compile (not yet tested).
2998 *) Additional typesafe stacks.
3001 *) New configuration variants "bsdi-elf-gcc" (BSD/OS 4.x).
3005 Changes between 0.9.3 and 0.9.3a [29 May 1999]
3007 *) New configuration variant "sco5-gcc".
3009 *) Updated some demos.
3010 [Sean O Riordain, Wade Scholine]
3012 *) Add missing BIO_free at exit of pkcs12 application.
3015 *) Fix memory leak in conf.c.
3018 *) Updates for Win32 to assembler version of MD5.
3021 *) Set #! path to perl in apps/der_chop to where we found it
3022 instead of using a fixed path.
3025 *) SHA library changes for irix64-mips4-cc.
3028 *) Improvements for VMS support.
3032 Changes between 0.9.2b and 0.9.3 [24 May 1999]
3034 *) Bignum library bug fix. IRIX 6 passes "make test" now!
3035 This also avoids the problems with SC4.2 and unpatched SC5.
3036 [Andy Polyakov <appro@fy.chalmers.se>]
3038 *) New functions sk_num, sk_value and sk_set to replace the previous macros.
3039 These are required because of the typesafe stack would otherwise break
3040 existing code. If old code used a structure member which used to be STACK
3041 and is now STACK_OF (for example cert in a PKCS7_SIGNED structure) with
3042 sk_num or sk_value it would produce an error because the num, data members
3043 are not present in STACK_OF. Now it just produces a warning. sk_set
3044 replaces the old method of assigning a value to sk_value
3045 (e.g. sk_value(x, i) = y) which the library used in a few cases. Any code
3046 that does this will no longer work (and should use sk_set instead) but
3047 this could be regarded as a "questionable" behaviour anyway.
3050 *) Fix most of the other PKCS#7 bugs. The "experimental" code can now
3051 correctly handle encrypted S/MIME data.
3054 *) Change type of various DES function arguments from des_cblock
3055 (which means, in function argument declarations, pointer to char)
3056 to des_cblock * (meaning pointer to array with 8 char elements),
3057 which allows the compiler to do more typechecking; it was like
3058 that back in SSLeay, but with lots of ugly casts.
3060 Introduce new type const_des_cblock.
3063 *) Reorganise the PKCS#7 library and get rid of some of the more obvious
3064 problems: find RecipientInfo structure that matches recipient certificate
3065 and initialise the ASN1 structures properly based on passed cipher.
3068 *) Belatedly make the BN tests actually check the results.
3071 *) Fix the encoding and decoding of negative ASN1 INTEGERS and conversion
3072 to and from BNs: it was completely broken. New compilation option
3073 NEG_PUBKEY_BUG to allow for some broken certificates that encode public
3074 key elements as negative integers.
3077 *) Reorganize and speed up MD5.
3078 [Andy Polyakov <appro@fy.chalmers.se>]
3081 [Richard Levitte <richard@levitte.org>]
3083 *) New option -out to asn1parse to allow the parsed structure to be
3084 output to a file. This is most useful when combined with the -strparse
3085 option to examine the output of things like OCTET STRINGS.
3088 *) Make SSL library a little more fool-proof by not requiring any longer
3089 that SSL_set_{accept,connect}_state be called before
3090 SSL_{accept,connect} may be used (SSL_set_..._state is omitted
3091 in many applications because usually everything *appeared* to work as
3092 intended anyway -- now it really works as intended).
3095 *) Move openssl.cnf out of lib/.
3098 *) Fix various things to let OpenSSL even pass ``egcc -pipe -O2 -Wall
3099 -Wshadow -Wpointer-arith -Wcast-align -Wmissing-prototypes
3100 -Wmissing-declarations -Wnested-externs -Winline'' with EGCS 1.1.2+
3101 [Ralf S. Engelschall]
3103 *) Various fixes to the EVP and PKCS#7 code. It may now be able to
3104 handle PKCS#7 enveloped data properly.
3105 [Sebastian Akerman <sak@parallelconsulting.com>, modified by Steve]
3107 *) Create a duplicate of the SSL_CTX's CERT in SSL_new instead of
3108 copying pointers. The cert_st handling is changed by this in
3109 various ways (and thus what used to be known as ctx->default_cert
3110 is now called ctx->cert, since we don't resort to s->ctx->[default_]cert
3111 any longer when s->cert does not give us what we need).
3112 ssl_cert_instantiate becomes obsolete by this change.
3113 As soon as we've got the new code right (possibly it already is?),
3114 we have solved a couple of bugs of the earlier code where s->cert
3115 was used as if it could not have been shared with other SSL structures.
3117 Note that using the SSL API in certain dirty ways now will result
3118 in different behaviour than observed with earlier library versions:
3119 Changing settings for an SSL_CTX *ctx after having done s = SSL_new(ctx)
3120 does not influence s as it used to.
3122 In order to clean up things more thoroughly, inside SSL_SESSION
3123 we don't use CERT any longer, but a new structure SESS_CERT
3124 that holds per-session data (if available); currently, this is
3125 the peer's certificate chain and, for clients, the server's certificate
3126 and temporary key. CERT holds only those values that can have
3127 meaningful defaults in an SSL_CTX.
3130 *) New function X509V3_EXT_i2d() to create an X509_EXTENSION structure
3131 from the internal representation. Various PKCS#7 fixes: remove some
3132 evil casts and set the enc_dig_alg field properly based on the signing
3136 *) Allow PKCS#12 password to be set from the command line or the
3137 environment. Let 'ca' get its config file name from the environment
3138 variables "OPENSSL_CONF" or "SSLEAY_CONF" (for consistency with 'req'
3142 *) Allow certificate policies extension to use an IA5STRING for the
3143 organization field. This is contrary to the PKIX definition but
3144 VeriSign uses it and IE5 only recognises this form. Document 'x509'
3148 *) Add PEDANTIC compiler flag to allow compilation with gcc -pedantic,
3149 without disallowing inline assembler and the like for non-pedantic builds.
3152 *) Support Borland C++ builder.
3153 [Janez Jere <jj@void.si>, modified by Ulf Möller]
3158 *) SHA-1 cleanups and performance enhancements.
3159 [Andy Polyakov <appro@fy.chalmers.se>]
3161 *) Sparc v8plus assembler for the bignum library.
3162 [Andy Polyakov <appro@fy.chalmers.se>]
3164 *) Accept any -xxx and +xxx compiler options in Configure.
3167 *) Update HPUX configuration.
3170 *) Add missing sk_<type>_unshift() function to safestack.h
3171 [Ralf S. Engelschall]
3173 *) New function SSL_CTX_use_certificate_chain_file that sets the
3174 "extra_cert"s in addition to the certificate. (This makes sense
3175 only for "PEM" format files, as chains as a whole are not
3179 *) Support verify_depth from the SSL API.
3180 x509_vfy.c had what can be considered an off-by-one-error:
3181 Its depth (which was not part of the external interface)
3182 was actually counting the number of certificates in a chain;
3183 now it really counts the depth.
3186 *) Bugfix in crypto/x509/x509_cmp.c: The SSLerr macro was used
3187 instead of X509err, which often resulted in confusing error
3188 messages since the error codes are not globally unique
3189 (e.g. an alleged error in ssl3_accept when a certificate
3190 didn't match the private key).
3192 *) New function SSL_CTX_set_session_id_context that allows to set a default
3193 value (so that you don't need SSL_set_session_id_context for each
3194 connection using the SSL_CTX).
3197 *) OAEP decoding bug fix.
3200 *) Support INSTALL_PREFIX for package builders, as proposed by
3204 *) New Configure options "threads" and "no-threads". For systems
3205 where the proper compiler options are known (currently Solaris
3206 and Linux), "threads" is the default.
3209 *) New script util/mklink.pl as a faster substitute for util/mklink.sh.
3212 *) Install various scripts to $(OPENSSLDIR)/misc, not to
3213 $(INSTALLTOP)/bin -- they shouldn't clutter directories
3214 such as /usr/local/bin.
3217 *) "make linux-shared" to build shared libraries.
3218 [Niels Poppe <niels@netbox.org>]
3220 *) New Configure option no-<cipher> (rsa, idea, rc5, ...).
3223 *) Add the PKCS#12 API documentation to openssl.txt. Preliminary support for
3224 extension adding in x509 utility.
3227 *) Remove NOPROTO sections and error code comments.
3230 *) Partial rewrite of the DEF file generator to now parse the ANSI
3234 *) New Configure options --prefix=DIR and --openssldir=DIR.
3237 *) Complete rewrite of the error code script(s). It is all now handled
3238 by one script at the top level which handles error code gathering,
3239 header rewriting and C source file generation. It should be much better
3240 than the old method: it now uses a modified version of Ulf's parser to
3241 read the ANSI prototypes in all header files (thus the old K&R definitions
3242 aren't needed for error creation any more) and do a better job of
3243 translating function codes into names. The old 'ASN1 error code imbedded
3244 in a comment' is no longer necessary and it doesn't use .err files which
3245 have now been deleted. Also the error code call doesn't have to appear all
3246 on one line (which resulted in some large lines...).
3249 *) Change #include filenames from <foo.h> to <openssl/foo.h>.
3252 *) Change behaviour of ssl2_read when facing length-0 packets: Don't return
3253 0 (which usually indicates a closed connection), but continue reading.
3256 *) Fix some race conditions.
3259 *) Add support for CRL distribution points extension. Add Certificate
3260 Policies and CRL distribution points documentation.
3263 *) Move the autogenerated header file parts to crypto/opensslconf.h.
3266 *) Fix new 56-bit DES export ciphersuites: they were using 7 bytes instead of
3267 8 of keying material. Merlin has also confirmed interop with this fix
3268 between OpenSSL and Baltimore C/SSL 2.0 and J/SSL 2.0.
3269 [Merlin Hughes <merlin@baltimore.ie>]
3271 *) Fix lots of warnings.
3272 [Richard Levitte <levitte@stacken.kth.se>]
3274 *) In add_cert_dir() in crypto/x509/by_dir.c, break out of the loop if
3275 the directory spec didn't end with a LIST_SEPARATOR_CHAR.
3276 [Richard Levitte <levitte@stacken.kth.se>]
3278 *) Fix problems with sizeof(long) == 8.
3279 [Andy Polyakov <appro@fy.chalmers.se>]
3281 *) Change functions to ANSI C.
3284 *) Fix typos in error codes.
3285 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>, Ulf Möller]
3287 *) Remove defunct assembler files from Configure.
3290 *) SPARC v8 assembler BIGNUM implementation.
3291 [Andy Polyakov <appro@fy.chalmers.se>]
3293 *) Support for Certificate Policies extension: both print and set.
3294 Various additions to support the r2i method this uses.
3297 *) A lot of constification, and fix a bug in X509_NAME_oneline() that could
3298 return a const string when you are expecting an allocated buffer.
3301 *) Add support for ASN1 types UTF8String and VISIBLESTRING, also the CHOICE
3302 types DirectoryString and DisplayText.
3305 *) Add code to allow r2i extensions to access the configuration database,
3306 add an LHASH database driver and add several ctx helper functions.
3309 *) Fix an evil bug in bn_expand2() which caused various BN functions to
3310 fail when they extended the size of a BIGNUM.
3313 *) Various utility functions to handle SXNet extension. Modify mkdef.pl to
3314 support typesafe stack.
3317 *) Fix typo in SSL_[gs]et_options().
3318 [Nils Frostberg <nils@medcom.se>]
3320 *) Delete various functions and files that belonged to the (now obsolete)
3321 old X509V3 handling code.
3324 *) New Configure option "rsaref".
3327 *) Don't auto-generate pem.h.
3330 *) Introduce type-safe ASN.1 SETs.
3333 *) Convert various additional casted stacks to type-safe STACK_OF() variants.
3334 [Ben Laurie, Ralf S. Engelschall, Steve Henson]
3336 *) Introduce type-safe STACKs. This will almost certainly break lots of code
3337 that links with OpenSSL (well at least cause lots of warnings), but fear
3338 not: the conversion is trivial, and it eliminates loads of evil casts. A
3339 few STACKed things have been converted already. Feel free to convert more.
3340 In the fullness of time, I'll do away with the STACK type altogether.
3343 *) Add `openssl ca -revoke <certfile>' facility which revokes a certificate
3344 specified in <certfile> by updating the entry in the index.txt file.
3345 This way one no longer has to edit the index.txt file manually for
3346 revoking a certificate. The -revoke option does the gory details now.
3347 [Massimiliano Pala <madwolf@openca.org>, Ralf S. Engelschall]
3349 *) Fix `openssl crl -noout -text' combination where `-noout' killed the
3350 `-text' option at all and this way the `-noout -text' combination was
3351 inconsistent in `openssl crl' with the friends in `openssl x509|rsa|dsa'.
3352 [Ralf S. Engelschall]
3354 *) Make sure a corresponding plain text error message exists for the
3355 X509_V_ERR_CERT_REVOKED/23 error number which can occur when a
3356 verify callback function determined that a certificate was revoked.
3357 [Ralf S. Engelschall]
3359 *) Bugfix: In test/testenc, don't test "openssl <cipher>" for
3360 ciphers that were excluded, e.g. by -DNO_IDEA. Also, test
3361 all available cipers including rc5, which was forgotten until now.
3362 In order to let the testing shell script know which algorithms
3363 are available, a new (up to now undocumented) command
3364 "openssl list-cipher-commands" is used.
3367 *) Bugfix: s_client occasionally would sleep in select() when
3368 it should have checked SSL_pending() first.
3371 *) New functions DSA_do_sign and DSA_do_verify to provide access to
3372 the raw DSA values prior to ASN.1 encoding.
3375 *) Tweaks to Configure
3376 [Niels Poppe <niels@netbox.org>]
3378 *) Add support for PKCS#5 v2.0 ASN1 PBES2 structures. No other support,
3382 *) New variables $(RANLIB) and $(PERL) in the Makefiles.
3385 *) New config option to avoid instructions that are illegal on the 80386.
3386 The default code is faster, but requires at least a 486.
3389 *) Got rid of old SSL2_CLIENT_VERSION (inconsistently used) and
3390 SSL2_SERVER_VERSION (not used at all) macros, which are now the
3391 same as SSL2_VERSION anyway.
3394 *) New "-showcerts" option for s_client.
3397 *) Still more PKCS#12 integration. Add pkcs12 application to openssl
3398 application. Various cleanups and fixes.
3401 *) More PKCS#12 integration. Add new pkcs12 directory with Makefile.ssl and
3402 modify error routines to work internally. Add error codes and PBE init
3403 to library startup routines.
3406 *) Further PKCS#12 integration. Added password based encryption, PKCS#8 and
3407 packing functions to asn1 and evp. Changed function names and error
3408 codes along the way.
3411 *) PKCS12 integration: and so it begins... First of several patches to
3412 slowly integrate PKCS#12 functionality into OpenSSL. Add PKCS#12
3413 objects to objects.h
3416 *) Add a new 'indent' option to some X509V3 extension code. Initial ASN1
3417 and display support for Thawte strong extranet extension.
3420 *) Add LinuxPPC support.
3421 [Jeff Dubrule <igor@pobox.org>]
3423 *) Get rid of redundant BN file bn_mulw.c, and rename bn_div64 to
3424 bn_div_words in alpha.s.
3425 [Hannes Reinecke <H.Reinecke@hw.ac.uk> and Ben Laurie]
3427 *) Make sure the RSA OAEP test is skipped under -DRSAref because
3428 OAEP isn't supported when OpenSSL is built with RSAref.
3429 [Ulf Moeller <ulf@fitug.de>]
3431 *) Move definitions of IS_SET/IS_SEQUENCE inside crypto/asn1/asn1.h
3432 so they no longer are missing under -DNOPROTO.
3433 [Soren S. Jorvang <soren@t.dk>]
3436 Changes between 0.9.1c and 0.9.2b [22 Mar 1999]
3438 *) Make SSL_get_peer_cert_chain() work in servers. Unfortunately, it still
3439 doesn't work when the session is reused. Coming soon!
3442 *) Fix a security hole, that allows sessions to be reused in the wrong
3443 context thus bypassing client cert protection! All software that uses
3444 client certs and session caches in multiple contexts NEEDS PATCHING to
3445 allow session reuse! A fuller solution is in the works.
3446 [Ben Laurie, problem pointed out by Holger Reif, Bodo Moeller (and ???)]
3448 *) Some more source tree cleanups (removed obsolete files
3449 crypto/bf/asm/bf586.pl, test/test.txt and crypto/sha/asm/f.s; changed
3450 permission on "config" script to be executable) and a fix for the INSTALL
3452 [Ulf Moeller <ulf@fitug.de>]
3454 *) Remove some legacy and erroneous uses of malloc, free instead of
3456 [Lennart Bang <lob@netstream.se>, with minor changes by Steve]
3458 *) Make rsa_oaep_test return non-zero on error.
3459 [Ulf Moeller <ulf@fitug.de>]
3461 *) Add support for native Solaris shared libraries. Configure
3462 solaris-sparc-sc4-pic, make, then run shlib/solaris-sc4.sh. It'd be nice
3463 if someone would make that last step automatic.
3464 [Matthias Loepfe <Matthias.Loepfe@AdNovum.CH>]
3466 *) ctx_size was not built with the right compiler during "make links". Fixed.
3469 *) Change the meaning of 'ALL' in the cipher list. It now means "everything
3470 except NULL ciphers". This means the default cipher list will no longer
3471 enable NULL ciphers. They need to be specifically enabled e.g. with
3472 the string "DEFAULT:eNULL".
3475 *) Fix to RSA private encryption routines: if p < q then it would
3476 occasionally produce an invalid result. This will only happen with
3477 externally generated keys because OpenSSL (and SSLeay) ensure p > q.
3480 *) Be less restrictive and allow also `perl util/perlpath.pl
3481 /path/to/bin/perl' in addition to `perl util/perlpath.pl /path/to/bin',
3482 because this way one can also use an interpreter named `perl5' (which is
3483 usually the name of Perl 5.xxx on platforms where an Perl 4.x is still
3484 installed as `perl').
3485 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
3487 *) Let util/clean-depend.pl work also with older Perl 5.00x versions.
3488 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
3490 *) Fix Makefile.org so CC,CFLAG etc are passed to 'make links' add
3491 advapi32.lib to Win32 build and change the pem test comparision
3492 to fc.exe (thanks to Ulrich Kroener <kroneru@yahoo.com> for the
3493 suggestion). Fix misplaced ASNI prototypes and declarations in evp.h
3494 and crypto/des/ede_cbcm_enc.c.
3497 *) DES quad checksum was broken on big-endian architectures. Fixed.
3500 *) Comment out two functions in bio.h that aren't implemented. Fix up the
3501 Win32 test batch file so it (might) work again. The Win32 test batch file
3502 is horrible: I feel ill....
3505 *) Move various #ifdefs around so NO_SYSLOG, NO_DIRENT etc are now selected
3506 in e_os.h. Audit of header files to check ANSI and non ANSI
3507 sections: 10 functions were absent from non ANSI section and not exported
3508 from Windows DLLs. Fixed up libeay.num for new functions.
3511 *) Make `openssl version' output lines consistent.
3512 [Ralf S. Engelschall]
3514 *) Fix Win32 symbol export lists for BIO functions: Added
3515 BIO_get_ex_new_index, BIO_get_ex_num, BIO_get_ex_data and BIO_set_ex_data
3516 to ms/libeay{16,32}.def.
3517 [Ralf S. Engelschall]
3519 *) Second round of fixing the OpenSSL perl/ stuff. It now at least compiled
3520 fine under Unix and passes some trivial tests I've now added. But the
3521 whole stuff is horribly incomplete, so a README.1ST with a disclaimer was
3522 added to make sure no one expects that this stuff really works in the
3523 OpenSSL 0.9.2 release. Additionally I've started to clean the XS sources
3524 up and fixed a few little bugs and inconsistencies in OpenSSL.{pm,xs} and
3526 [Ralf S. Engelschall]
3528 *) Fix the generation of two part addresses in perl.
3529 [Kenji Miyake <kenji@miyake.org>, integrated by Ben Laurie]
3531 *) Add config entry for Linux on MIPS.
3532 [John Tobey <jtobey@channel1.com>]
3534 *) Make links whenever Configure is run, unless we are on Windoze.
3537 *) Permit extensions to be added to CRLs using crl_section in openssl.cnf.
3538 Currently only issuerAltName and AuthorityKeyIdentifier make any sense
3542 *) Add a useful kludge to allow package maintainers to specify compiler and
3543 other platforms details on the command line without having to patch the
3544 Configure script everytime: One now can use ``perl Configure
3545 <id>:<details>'', i.e. platform ids are allowed to have details appended
3546 to them (seperated by colons). This is treated as there would be a static
3547 pre-configured entry in Configure's %table under key <id> with value
3548 <details> and ``perl Configure <id>'' is called. So, when you want to
3549 perform a quick test-compile under FreeBSD 3.1 with pgcc and without
3550 assembler stuff you can use ``perl Configure "FreeBSD-elf:pgcc:-O6:::"''
3551 now, which overrides the FreeBSD-elf entry on-the-fly.
3552 [Ralf S. Engelschall]
3554 *) Disable new TLS1 ciphersuites by default: they aren't official yet.
3557 *) Allow DSO flags like -fpic, -fPIC, -KPIC etc. to be specified
3558 on the `perl Configure ...' command line. This way one can compile
3559 OpenSSL libraries with Position Independent Code (PIC) which is needed
3560 for linking it into DSOs.
3561 [Ralf S. Engelschall]
3563 *) Remarkably, export ciphers were totally broken and no-one had noticed!
3567 *) Cleaned up the LICENSE document: The official contact for any license
3568 questions now is the OpenSSL core team under openssl-core@openssl.org.
3569 And add a paragraph about the dual-license situation to make sure people
3570 recognize that _BOTH_ the OpenSSL license _AND_ the SSLeay license apply
3571 to the OpenSSL toolkit.
3572 [Ralf S. Engelschall]
3574 *) General source tree makefile cleanups: Made `making xxx in yyy...'
3575 display consistent in the source tree and replaced `/bin/rm' by `rm'.
3576 Additonally cleaned up the `make links' target: Remove unnecessary
3577 semicolons, subsequent redundant removes, inline point.sh into mklink.sh
3578 to speed processing and no longer clutter the display with confusing
3579 stuff. Instead only the actually done links are displayed.
3580 [Ralf S. Engelschall]
3582 *) Permit null encryption ciphersuites, used for authentication only. It used
3583 to be necessary to set the preprocessor define SSL_ALLOW_ENULL to do this.
3584 It is now necessary to set SSL_FORBID_ENULL to prevent the use of null
3588 *) Add a bunch of fixes to the PKCS#7 stuff. It used to sometimes reorder
3589 signed attributes when verifying signatures (this would break them),
3590 the detached data encoding was wrong and public keys obtained using
3591 X509_get_pubkey() weren't freed.
3594 *) Add text documentation for the BUFFER functions. Also added a work around
3595 to a Win95 console bug. This was triggered by the password read stuff: the
3596 last character typed gets carried over to the next fread(). If you were
3597 generating a new cert request using 'req' for example then the last
3598 character of the passphrase would be CR which would then enter the first
3602 *) Added the new `Includes OpenSSL Cryptography Software' button as
3603 doc/openssl_button.{gif,html} which is similar in style to the old SSLeay
3604 button and can be used by applications based on OpenSSL to show the
3605 relationship to the OpenSSL project.
3606 [Ralf S. Engelschall]
3608 *) Remove confusing variables in function signatures in files
3609 ssl/ssl_lib.c and ssl/ssl.h.
3610 [Lennart Bong <lob@kulthea.stacken.kth.se>]
3612 *) Don't install bss_file.c under PREFIX/include/
3613 [Lennart Bong <lob@kulthea.stacken.kth.se>]
3615 *) Get the Win32 compile working again. Modify mkdef.pl so it can handle
3616 functions that return function pointers and has support for NT specific
3617 stuff. Fix mk1mf.pl and VC-32.pl to support NT differences also. Various
3618 #ifdef WIN32 and WINNTs sprinkled about the place and some changes from
3619 unsigned to signed types: this was killing the Win32 compile.
3622 *) Add new certificate file to stack functions,
3623 SSL_add_dir_cert_subjects_to_stack() and
3624 SSL_add_file_cert_subjects_to_stack(). These largely supplant
3625 SSL_load_client_CA_file(), and can be used to add multiple certs easily
3626 to a stack (usually this is then handed to SSL_CTX_set_client_CA_list()).
3627 This means that Apache-SSL and similar packages don't have to mess around
3628 to add as many CAs as they want to the preferred list.
3631 *) Experiment with doxygen documentation. Currently only partially applied to
3633 See http://www.stack.nl/~dimitri/doxygen/index.html, and run doxygen with
3634 openssl.doxy as the configuration file.
3637 *) Get rid of remaining C++-style comments which strict C compilers hate.
3638 [Ralf S. Engelschall, pointed out by Carlos Amengual]
3640 *) Changed BN_RECURSION in bn_mont.c to BN_RECURSION_MONT so it is not
3641 compiled in by default: it has problems with large keys.
3644 *) Add a bunch of SSL_xxx() functions for configuring the temporary RSA and
3645 DH private keys and/or callback functions which directly correspond to
3646 their SSL_CTX_xxx() counterparts but work on a per-connection basis. This
3647 is needed for applications which have to configure certificates on a
3648 per-connection basis (e.g. Apache+mod_ssl) instead of a per-context basis
3650 For the RSA certificate situation is makes no difference, but
3651 for the DSA certificate situation this fixes the "no shared cipher"
3652 problem where the OpenSSL cipher selection procedure failed because the
3653 temporary keys were not overtaken from the context and the API provided
3654 no way to reconfigure them.
3655 The new functions now let applications reconfigure the stuff and they
3656 are in detail: SSL_need_tmp_RSA, SSL_set_tmp_rsa, SSL_set_tmp_dh,
3657 SSL_set_tmp_rsa_callback and SSL_set_tmp_dh_callback. Additionally a new
3658 non-public-API function ssl_cert_instantiate() is used as a helper
3659 function and also to reduce code redundancy inside ssl_rsa.c.
3660 [Ralf S. Engelschall]
3662 *) Move s_server -dcert and -dkey options out of the undocumented feature
3663 area because they are useful for the DSA situation and should be
3664 recognized by the users.
3665 [Ralf S. Engelschall]
3667 *) Fix the cipher decision scheme for export ciphers: the export bits are
3668 *not* within SSL_MKEY_MASK or SSL_AUTH_MASK, they are within
3669 SSL_EXP_MASK. So, the original variable has to be used instead of the
3670 already masked variable.
3671 [Richard Levitte <levitte@stacken.kth.se>]
3673 *) Fix 'port' variable from `int' to `unsigned int' in crypto/bio/b_sock.c
3674 [Richard Levitte <levitte@stacken.kth.se>]
3676 *) Change type of another md_len variable in pk7_doit.c:PKCS7_dataFinal()
3677 from `int' to `unsigned int' because it's a length and initialized by
3678 EVP_DigestFinal() which expects an `unsigned int *'.
3679 [Richard Levitte <levitte@stacken.kth.se>]
3681 *) Don't hard-code path to Perl interpreter on shebang line of Configure
3682 script. Instead use the usual Shell->Perl transition trick.
3683 [Ralf S. Engelschall]
3685 *) Make `openssl x509 -noout -modulus' functional also for DSA certificates
3686 (in addition to RSA certificates) to match the behaviour of `openssl dsa
3687 -noout -modulus' as it's already the case for `openssl rsa -noout
3688 -modulus'. For RSA the -modulus is the real "modulus" while for DSA
3689 currently the public key is printed (a decision which was already done by
3690 `openssl dsa -modulus' in the past) which serves a similar purpose.
3691 Additionally the NO_RSA no longer completely removes the whole -modulus
3692 option; it now only avoids using the RSA stuff. Same applies to NO_DSA
3694 [Ralf S. Engelschall]
3696 *) Add Arne Ansper's reliable BIO - this is an encrypted, block-digested
3697 BIO. See the source (crypto/evp/bio_ok.c) for more info.
3698 [Arne Ansper <arne@ats.cyber.ee>]
3700 *) Dump the old yucky req code that tried (and failed) to allow raw OIDs
3701 to be added. Now both 'req' and 'ca' can use new objects defined in the
3705 *) Add cool BIO that does syslog (or event log on NT).
3706 [Arne Ansper <arne@ats.cyber.ee>, integrated by Ben Laurie]
3708 *) Add support for new TLS ciphersuites, TLS_RSA_EXPORT56_WITH_RC4_56_MD5,
3709 TLS_RSA_EXPORT56_WITH_RC2_CBC_56_MD5 and
3710 TLS_RSA_EXPORT56_WITH_DES_CBC_SHA, as specified in "56-bit Export Cipher
3711 Suites For TLS", draft-ietf-tls-56-bit-ciphersuites-00.txt.
3714 *) Add preliminary config info for new extension code.
3717 *) Make RSA_NO_PADDING really use no padding.
3718 [Ulf Moeller <ulf@fitug.de>]
3720 *) Generate errors when private/public key check is done.
3723 *) Overhaul for 'crl' utility. New function X509_CRL_print. Partial support
3724 for some CRL extensions and new objects added.
3727 *) Really fix the ASN1 IMPLICIT bug this time... Partial support for private
3728 key usage extension and fuller support for authority key id.
3731 *) Add OAEP encryption for the OpenSSL crypto library. OAEP is the improved
3732 padding method for RSA, which is recommended for new applications in PKCS
3733 #1 v2.0 (RFC 2437, October 1998).
3734 OAEP (Optimal Asymmetric Encryption Padding) has better theoretical
3735 foundations than the ad-hoc padding used in PKCS #1 v1.5. It is secure
3736 against Bleichbacher's attack on RSA.
3737 [Ulf Moeller <ulf@fitug.de>, reformatted, corrected and integrated by
3740 *) Updates to the new SSL compression code
3741 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
3743 *) Fix so that the version number in the master secret, when passed
3744 via RSA, checks that if TLS was proposed, but we roll back to SSLv3
3745 (because the server will not accept higher), that the version number
3746 is 0x03,0x01, not 0x03,0x00
3747 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
3749 *) Run extensive memory leak checks on SSL apps. Fixed *lots* of memory
3750 leaks in ssl/ relating to new X509_get_pubkey() behaviour. Also fixes
3751 in apps/ and an unrelated leak in crypto/dsa/dsa_vrf.c
3754 *) Support for RAW extensions where an arbitrary extension can be
3755 created by including its DER encoding. See apps/openssl.cnf for
3759 *) Make sure latest Perl versions don't interpret some generated C array
3760 code as Perl array code in the crypto/err/err_genc.pl script.
3761 [Lars Weber <3weber@informatik.uni-hamburg.de>]
3763 *) Modify ms/do_ms.bat to not generate assembly language makefiles since
3764 not many people have the assembler. Various Win32 compilation fixes and
3765 update to the INSTALL.W32 file with (hopefully) more accurate Win32
3769 *) Modify configure script 'Configure' to automatically create crypto/date.h
3770 file under Win32 and also build pem.h from pem.org. New script
3771 util/mkfiles.pl to create the MINFO file on environments that can't do a
3772 'make files': perl util/mkfiles.pl >MINFO should work.
3775 *) Major rework of DES function declarations, in the pursuit of correctness
3776 and purity. As a result, many evil casts evaporated, and some weirdness,
3777 too. You may find this causes warnings in your code. Zapping your evil
3778 casts will probably fix them. Mostly.
3781 *) Fix for a typo in asn1.h. Bug fix to object creation script
3782 obj_dat.pl. It considered a zero in an object definition to mean
3783 "end of object": none of the objects in objects.h have any zeros
3784 so it wasn't spotted.
3785 [Steve Henson, reported by Erwann ABALEA <eabalea@certplus.com>]
3787 *) Add support for Triple DES Cipher Block Chaining with Output Feedback
3788 Masking (CBCM). In the absence of test vectors, the best I have been able
3789 to do is check that the decrypt undoes the encrypt, so far. Send me test
3790 vectors if you have them.
3793 *) Correct calculation of key length for export ciphers (too much space was
3794 allocated for null ciphers). This has not been tested!
3797 *) Modifications to the mkdef.pl for Win32 DEF file creation. The usage
3798 message is now correct (it understands "crypto" and "ssl" on its
3799 command line). There is also now an "update" option. This will update
3800 the util/ssleay.num and util/libeay.num files with any new functions.
3802 perl util/mkdef.pl crypto ssl update
3803 it will update them.
3806 *) Overhauled the Perl interface (perl/*):
3807 - ported BN stuff to OpenSSL's different BN library
3808 - made the perl/ source tree CVS-aware
3809 - renamed the package from SSLeay to OpenSSL (the files still contain
3810 their history because I've copied them in the repository)
3811 - removed obsolete files (the test scripts will be replaced
3812 by better Test::Harness variants in the future)
3813 [Ralf S. Engelschall]
3815 *) First cut for a very conservative source tree cleanup:
3816 1. merge various obsolete readme texts into doc/ssleay.txt
3817 where we collect the old documents and readme texts.
3818 2. remove the first part of files where I'm already sure that we no
3819 longer need them because of three reasons: either they are just temporary
3820 files which were left by Eric or they are preserved original files where
3821 I've verified that the diff is also available in the CVS via "cvs diff
3822 -rSSLeay_0_8_1b" or they were renamed (as it was definitely the case for
3823 the crypto/md/ stuff).
3824 [Ralf S. Engelschall]
3826 *) More extension code. Incomplete support for subject and issuer alt
3827 name, issuer and authority key id. Change the i2v function parameters
3828 and add an extra 'crl' parameter in the X509V3_CTX structure: guess
3829 what that's for :-) Fix to ASN1 macro which messed up
3830 IMPLICIT tag and add f_enum.c which adds a2i, i2a for ENUMERATED.
3833 *) Preliminary support for ENUMERATED type. This is largely copied from the
3837 *) Add new function, EVP_MD_CTX_copy() to replace frequent use of memcpy.
3838 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
3840 *) Make sure `make rehash' target really finds the `openssl' program.
3841 [Ralf S. Engelschall, Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
3843 *) Squeeze another 7% of speed out of MD5 assembler, at least on a P2. I'd
3844 like to hear about it if this slows down other processors.
3847 *) Add CygWin32 platform information to Configure script.
3848 [Alan Batie <batie@aahz.jf.intel.com>]
3850 *) Fixed ms/32all.bat script: `no_asm' -> `no-asm'
3851 [Rainer W. Gerling <gerling@mpg-gv.mpg.de>]
3853 *) New program nseq to manipulate netscape certificate sequences
3856 *) Modify crl2pkcs7 so it supports multiple -certfile arguments. Fix a
3860 *) Fixes to BN code. Previously the default was to define BN_RECURSION
3861 but the BN code had some problems that would cause failures when
3862 doing certificate verification and some other functions.
3863 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
3865 *) Add ASN1 and PEM code to support netscape certificate sequences.
3868 *) Add ASN1 and PEM code to support netscape certificate sequences.
3871 *) Add several PKIX and private extended key usage OIDs.
3874 *) Modify the 'ca' program to handle the new extension code. Modify
3875 openssl.cnf for new extension format, add comments.
3878 *) More X509 V3 changes. Fix typo in v3_bitstr.c. Add support to 'req'
3879 and add a sample to openssl.cnf so req -x509 now adds appropriate
3883 *) Continued X509 V3 changes. Add to other makefiles, integrate with the
3884 error code, add initial support to X509_print() and x509 application.
3887 *) Takes a deep breath and start addding X509 V3 extension support code. Add
3888 files in crypto/x509v3. Move original stuff to crypto/x509v3/old. All this
3889 stuff is currently isolated and isn't even compiled yet.
3892 *) Continuing patches for GeneralizedTime. Fix up certificate and CRL
3893 ASN1 to use ASN1_TIME and modify print routines to use ASN1_TIME_print.
3894 Removed the versions check from X509 routines when loading extensions:
3895 this allows certain broken certificates that don't set the version
3896 properly to be processed.
3899 *) Deal with irritating shit to do with dependencies, in YAAHW (Yet Another
3900 Ad Hoc Way) - Makefile.ssls now all contain local dependencies, which
3901 can still be regenerated with "make depend".
3904 *) Spelling mistake in C version of CAST-128.
3905 [Ben Laurie, reported by Jeremy Hylton <jeremy@cnri.reston.va.us>]
3907 *) Changes to the error generation code. The perl script err-code.pl
3908 now reads in the old error codes and retains the old numbers, only
3909 adding new ones if necessary. It also only changes the .err files if new
3910 codes are added. The makefiles have been modified to only insert errors
3911 when needed (to avoid needlessly modifying header files). This is done
3912 by only inserting errors if the .err file is newer than the auto generated
3913 C file. To rebuild all the error codes from scratch (the old behaviour)
3914 either modify crypto/Makefile.ssl to pass the -regen flag to err_code.pl
3915 or delete all the .err files.
3918 *) CAST-128 was incorrectly implemented for short keys. The C version has
3919 been fixed, but is untested. The assembler versions are also fixed, but
3920 new assembler HAS NOT BEEN GENERATED FOR WIN32 - the Makefile needs fixing
3921 to regenerate it if needed.
3922 [Ben Laurie, reported (with fix for C version) by Jun-ichiro itojun
3923 Hagino <itojun@kame.net>]
3925 *) File was opened incorrectly in randfile.c.
3926 [Ulf Möller <ulf@fitug.de>]
3928 *) Beginning of support for GeneralizedTime. d2i, i2d, check and print
3929 functions. Also ASN1_TIME suite which is a CHOICE of UTCTime or
3930 GeneralizedTime. ASN1_TIME is the proper type used in certificates et
3931 al: it's just almost always a UTCTime. Note this patch adds new error
3932 codes so do a "make errors" if there are problems.
3935 *) Correct Linux 1 recognition in config.
3936 [Ulf Möller <ulf@fitug.de>]
3938 *) Remove pointless MD5 hash when using DSA keys in ca.
3939 [Anonymous <nobody@replay.com>]
3941 *) Generate an error if given an empty string as a cert directory. Also
3942 generate an error if handed NULL (previously returned 0 to indicate an
3943 error, but didn't set one).
3944 [Ben Laurie, reported by Anonymous <nobody@replay.com>]
3946 *) Add prototypes to SSL methods. Make SSL_write's buffer const, at last.
3949 *) Fix the dummy function BN_ref_mod_exp() in rsaref.c to have the correct
3950 parameters. This was causing a warning which killed off the Win32 compile.
3953 *) Remove C++ style comments from crypto/bn/bn_local.h.
3954 [Neil Costigan <neil.costigan@celocom.com>]
3956 *) The function OBJ_txt2nid was broken. It was supposed to return a nid
3957 based on a text string, looking up short and long names and finally
3958 "dot" format. The "dot" format stuff didn't work. Added new function
3959 OBJ_txt2obj to do the same but return an ASN1_OBJECT and rewrote
3960 OBJ_txt2nid to use it. OBJ_txt2obj can also return objects even if the
3961 OID is not part of the table.
3964 *) Add prototypes to X509 lookup/verify methods, fixing a bug in
3965 X509_LOOKUP_by_alias().
3968 *) Sort openssl functions by name.
3971 *) Get the gendsa program working (hopefully) and add it to app list. Remove
3972 encryption from sample DSA keys (in case anyone is interested the password
3976 *) Make _all_ *_free functions accept a NULL pointer.
3977 [Frans Heymans <fheymans@isaserver.be>]
3979 *) If a DH key is generated in s3_srvr.c, don't blow it by trying to use
3981 [Anonymous <nobody@replay.com>]
3983 *) s_server should send the CAfile as acceptable CAs, not its own cert.
3984 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
3986 *) Don't blow it for numeric -newkey arguments to apps/req.
3987 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
3989 *) Temp key "for export" tests were wrong in s3_srvr.c.
3990 [Anonymous <nobody@replay.com>]
3992 *) Add prototype for temp key callback functions
3993 SSL_CTX_set_tmp_{rsa,dh}_callback().
3996 *) Make DH_free() tolerate being passed a NULL pointer (like RSA_free() and
3997 DSA_free()). Make X509_PUBKEY_set() check for errors in d2i_PublicKey().
4000 *) X509_name_add_entry() freed the wrong thing after an error.
4001 [Arne Ansper <arne@ats.cyber.ee>]
4003 *) rsa_eay.c would attempt to free a NULL context.
4004 [Arne Ansper <arne@ats.cyber.ee>]
4006 *) BIO_s_socket() had a broken should_retry() on Windoze.
4007 [Arne Ansper <arne@ats.cyber.ee>]
4009 *) BIO_f_buffer() didn't pass on BIO_CTRL_FLUSH.
4010 [Arne Ansper <arne@ats.cyber.ee>]
4012 *) Make sure the already existing X509_STORE->depth variable is initialized
4013 in X509_STORE_new(), but document the fact that this variable is still
4014 unused in the certificate verification process.
4015 [Ralf S. Engelschall]
4017 *) Fix the various library and apps files to free up pkeys obtained from
4018 X509_PUBKEY_get() et al. Also allow x509.c to handle netscape extensions.
4021 *) Fix reference counting in X509_PUBKEY_get(). This makes
4022 demos/maurice/example2.c work, amongst others, probably.
4023 [Steve Henson and Ben Laurie]
4025 *) First cut of a cleanup for apps/. First the `ssleay' program is now named
4026 `openssl' and second, the shortcut symlinks for the `openssl <command>'
4027 are no longer created. This way we have a single and consistent command
4028 line interface `openssl <command>', similar to `cvs <command>'.
4029 [Ralf S. Engelschall, Paul Sutton and Ben Laurie]
4031 *) ca.c: move test for DSA keys inside #ifndef NO_DSA. Make pubkey
4032 BIT STRING wrapper always have zero unused bits.
4035 *) Add CA.pl, perl version of CA.sh, add extended key usage OID.
4038 *) Make the top-level INSTALL documentation easier to understand.
4041 *) Makefiles updated to exit if an error occurs in a sub-directory
4042 make (including if user presses ^C) [Paul Sutton]
4044 *) Make Montgomery context stuff explicit in RSA data structure.
4047 *) Fix build order of pem and err to allow for generated pem.h.
4050 *) Fix renumbering bug in X509_NAME_delete_entry().
4053 *) Enhanced the err-ins.pl script so it makes the error library number
4054 global and can add a library name. This is needed for external ASN1 and
4055 other error libraries.
4058 *) Fixed sk_insert which never worked properly.
4061 *) Fix ASN1 macros so they can handle indefinite length construted
4062 EXPLICIT tags. Some non standard certificates use these: they can now
4066 *) Merged the various old/obsolete SSLeay documentation files (doc/xxx.doc)
4067 into a single doc/ssleay.txt bundle. This way the information is still
4068 preserved but no longer messes up this directory. Now it's new room for
4069 the new set of documenation files.
4070 [Ralf S. Engelschall]
4072 *) SETs were incorrectly DER encoded. This was a major pain, because they
4073 shared code with SEQUENCEs, which aren't coded the same. This means that
4074 almost everything to do with SETs or SEQUENCEs has either changed name or
4075 number of arguments.
4076 [Ben Laurie, based on a partial fix by GP Jayan <gp@nsj.co.jp>]
4078 *) Fix test data to work with the above.
4081 *) Fix the RSA header declarations that hid a bug I fixed in 0.9.0b but
4082 was already fixed by Eric for 0.9.1 it seems.
4083 [Ben Laurie - pointed out by Ulf Möller <ulf@fitug.de>]
4085 *) Autodetect FreeBSD3.
4088 *) Fix various bugs in Configure. This affects the following platforms:
4092 unixware-2.0-pentium
4096 *) Eliminate generated files from CVS. Reorder tests to regenerate files
4097 before they are needed.
4100 *) Generate Makefile.ssl from Makefile.org (to keep CVS happy).
4104 Changes between 0.9.1b and 0.9.1c [23-Dec-1998]
4106 *) Added OPENSSL_VERSION_NUMBER to crypto/crypto.h and
4107 changed SSLeay to OpenSSL in version strings.
4108 [Ralf S. Engelschall]
4110 *) Some fixups to the top-level documents.
4113 *) Fixed the nasty bug where rsaref.h was not found under compile-time
4114 because the symlink to include/ was missing.
4115 [Ralf S. Engelschall]
4117 *) Incorporated the popular no-RSA/DSA-only patches
4118 which allow to compile a RSA-free SSLeay.
4119 [Andrew Cooke / Interrader Ldt., Ralf S. Engelschall]
4121 *) Fixed nasty rehash problem under `make -f Makefile.ssl links'
4122 when "ssleay" is still not found.
4123 [Ralf S. Engelschall]
4125 *) Added more platforms to Configure: Cray T3E, HPUX 11,
4126 [Ralf S. Engelschall, Beckmann <beckman@acl.lanl.gov>]
4128 *) Updated the README file.
4129 [Ralf S. Engelschall]
4131 *) Added various .cvsignore files in the CVS repository subdirs
4132 to make a "cvs update" really silent.
4133 [Ralf S. Engelschall]
4135 *) Recompiled the error-definition header files and added
4136 missing symbols to the Win32 linker tables.
4137 [Ralf S. Engelschall]
4139 *) Cleaned up the top-level documents;
4140 o new files: CHANGES and LICENSE
4141 o merged VERSION, HISTORY* and README* files a CHANGES.SSLeay
4142 o merged COPYRIGHT into LICENSE
4143 o removed obsolete TODO file
4144 o renamed MICROSOFT to INSTALL.W32
4145 [Ralf S. Engelschall]
4147 *) Removed dummy files from the 0.9.1b source tree:
4148 crypto/asn1/x crypto/bio/cd crypto/bio/fg crypto/bio/grep crypto/bio/vi
4149 crypto/bn/asm/......add.c crypto/bn/asm/a.out crypto/dsa/f crypto/md5/f
4150 crypto/pem/gmon.out crypto/perlasm/f crypto/pkcs7/build crypto/rsa/f
4151 crypto/sha/asm/f crypto/threads/f ms/zzz ssl/f ssl/f.mak test/f
4152 util/f.mak util/pl/f util/pl/f.mak crypto/bf/bf_locl.old apps/f
4153 [Ralf S. Engelschall]
4155 *) Added various platform portability fixes.
4158 *) The Genesis of the OpenSSL rpject:
4159 We start with the latest (unreleased) SSLeay version 0.9.1b which Eric A.
4160 Young and Tim J. Hudson created while they were working for C2Net until
4162 [The OpenSSL Project]
4165 Changes between 0.9.0b and 0.9.1b [not released]
4167 *) Updated a few CA certificates under certs/
4170 *) Changed some BIGNUM api stuff.
4173 *) Various platform ports: OpenBSD, Ultrix, IRIX 64bit, NetBSD,
4174 DGUX x86, Linux Alpha, etc.
4177 *) New COMP library [crypto/comp/] for SSL Record Layer Compression:
4178 RLE (dummy implemented) and ZLIB (really implemented when ZLIB is
4182 *) Add -strparse option to asn1pars program which parses nested
4184 [Dr Stephen Henson <shenson@bigfoot.com>]
4186 *) Added "oid_file" to ssleay.cnf for "ca" and "req" programs.
4189 *) DSA fix for "ca" program.
4192 *) Added "-genkey" option to "dsaparam" program.
4195 *) Added RIPE MD160 (rmd160) message digest.
4198 *) Added -a (all) option to "ssleay version" command.
4201 *) Added PLATFORM define which is the id given to Configure.
4204 *) Added MemCheck_XXXX functions to crypto/mem.c for memory checking.
4207 *) Extended the ASN.1 parser routines.
4210 *) Extended BIO routines to support REUSEADDR, seek, tell, etc.
4213 *) Added a BN_CTX to the BN library.
4216 *) Fixed the weak key values in DES library
4219 *) Changed API in EVP library for cipher aliases.
4222 *) Added support for RC2/64bit cipher.
4225 *) Converted the lhash library to the crypto/mem.c functions.
4228 *) Added more recognized ASN.1 object ids.
4231 *) Added more RSA padding checks for SSL/TLS.
4234 *) Added BIO proxy/filter functionality.
4237 *) Added extra_certs to SSL_CTX which can be used
4238 send extra CA certificates to the client in the CA cert chain sending
4239 process. It can be configured with SSL_CTX_add_extra_chain_cert().
4242 *) Now Fortezza is denied in the authentication phase because
4243 this is key exchange mechanism is not supported by SSLeay at all.
4246 *) Additional PKCS1 checks.
4249 *) Support the string "TLSv1" for all TLS v1 ciphers.
4252 *) Added function SSL_get_ex_data_X509_STORE_CTX_idx() which gives the
4253 ex_data index of the SSL context in the X509_STORE_CTX ex_data.
4256 *) Fixed a few memory leaks.
4259 *) Fixed various code and comment typos.
4262 *) A minor bug in ssl/s3_clnt.c where there would always be 4 0
4263 bytes sent in the client random.
4264 [Edward Bishop <ebishop@spyglass.com>]
projects / openssl.git / blob