4 Changes between 0.9.6 and 0.9.7 [xx XXX 2000]
6 *) Add "-rand" option also to s_client and s_server.
9 *) New function EVP_CIPHER_CTX_set_padding() this is used to
10 disable standard block padding (aka PKCS#5 padding) in the EVP
11 API, which was previously mandatory. This means that the data is
12 not padded in any way and so the total length much be a multiple
13 of the block size, otherwise an error occurs.
16 *) Initial (incomplete) OCSP SSL support.
19 *) Fix CPU detection on Irix 6.x.
20 [Kurt Hockenbury <khockenb@stevens-tech.edu> and
21 "Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
23 *) New function OCSP_parse_url(). This splits up a URL into its host,
24 port and path components: primarily to parse OCSP URLs. New -url
25 option to ocsp utility.
28 *) New nonce behavior. The return value of OCSP_check_nonce() now
29 reflects the various checks performed. Applications can decide
30 whether to tolerate certain situations such as an absent nonce
31 in a response when one was present in a request: the ocsp application
32 just prints out a warning. New function OCSP_add1_basic_nonce()
33 this is to allow responders to include a nonce in a response even if
34 the request is nonce-less.
37 *) Use the cached encoding of an X509_NAME structure rather than
38 copying it. This is apparently the reason for the libsafe "errors"
39 but the code is actually correct.
42 *) Disable stdin buffering in load_cert (apps/apps.c) so that no certs are
43 skipped when using openssl x509 multiple times on a single input file,
44 e.g. "(openssl x509 -out cert1; openssl x509 -out cert2) <certs".
47 *) Make ASN1_UTCTIME_set_string() and ASN1_GENERALIZEDTIME_set_string()
48 set string type: to handle setting ASN1_TIME structures. Fix ca
49 utility to correctly initialize revocation date of CRLs.
52 *) New option SSL_OP_CIPHER_SERVER_PREFERENCE allows the server to override
53 the clients preferred ciphersuites and rather use its own preferences.
54 Should help to work around M$ SGC (Server Gated Cryptography) bug in
55 Internet Explorer by ensuring unchanged hash method during stepup.
58 *) Make mkdef.pl recognise all DECLARE_ASN1 macros, change rijndael
59 to aes and add a new 'exist' option to print out symbols that don't
63 *) Additional options to ocsp utility to allow flags to be set and
64 additional certificates supplied.
67 *) Add the option -VAfile to 'openssl ocsp', so the user can give the
68 OCSP client a number of certificate to only verify the response
72 *) Add new function BN_rand_range(), and fix DSA_sign_setup() to prevent
73 Bleichenbacher's DSA attack.
74 [Ulf Moeller, Bodo Moeller]
76 *) Update Rijndael code to version 3.0 and change EVP AES ciphers to
77 handle the new API. Currently only ECB, CBC modes supported. Add new
78 AES OIDs. Add TLS AES ciphersuites as described in the "AES Ciphersuites
79 for TLS" draft-ietf-tls-ciphersuite-03.txt.
80 [Ben Laurie, Steve Henson]
82 *) In the NCONF_...-based implementations for CONF_... queries
83 (crypto/conf/conf_lib.c), if the input LHASH is NULL, avoid using
84 a temporary CONF structure with the data component set to NULL
85 (which gives segmentation faults in lh_retrieve).
86 Instead, use NULL for the CONF pointer in CONF_get_string and
87 CONF_get_number (which may use environment variables) and directly
88 return NULL from CONF_get_section.
91 *) Fix potential buffer overrun for EBCDIC.
94 *) New function OCSP_copy_nonce() to copy nonce value (if present) from
98 *) Functions for OCSP responders. OCSP_request_onereq_count(),
99 OCSP_request_onereq_get0(), OCSP_onereq_get0_id() and OCSP_id_get0_info()
100 extract information from a certificate request. OCSP_response_create()
101 creates a response and optionally adds a basic response structure.
102 OCSP_basic_add1_status() adds a complete single response to a basic
103 reponse and returns the OCSP_SINGLERESP structure just added (to allow
104 extensions to be included for example). OCSP_basic_add1_cert() adds a
105 certificate to a basic response and OCSP_basic_sign() signs a basic
106 response with various flags. New helper functions ASN1_TIME_check()
107 (checks validity of ASN1_TIME structure) and ASN1_TIME_to_generalizedtime()
108 (converts ASN1_TIME to GeneralizedTime).
111 *) Various new functions. EVP_Digest() combines EVP_Digest{Init,Update,Final}()
112 in a single operation. X509_get0_pubkey_bitstr() extracts the public_key
113 structure from a certificate. X509_pubkey_digest() digests tha public_key
114 contents: this is used in various key identifiers.
117 *) Tolerate nonRepudiation as being valid for S/MIME signing and certSign
118 keyUsage if basicConstraints absent for a CA.
121 *) Make SMIME_write_PKCS7() write mail header values with a format that
122 is more generally accepted (no spaces before the semicolon), since
123 some programs can't parse those values properly otherwise. Also make
124 sure BIO's that break lines after each write do not create invalid
128 *) Make sk_sort() tolerate a NULL argument.
129 [Steve Henson reported by Massimiliano Pala <madwolf@comune.modena.it>]
131 *) New OCSP verify flag OCSP_TRUSTOTHER. When set the "other" certificates
132 passed by the function are trusted implicitly. If any of them signed the
133 reponse then it is assumed to be valid and is not verified.
136 *) Zero the premaster secret after deriving the master secret in
140 *) In PKCS7_set_type() initialise content_type in PKCS7_ENC_CONTENT
141 to data. This was previously part of the PKCS7 ASN1 code. This
142 was causing problems with OpenSSL created PKCS#12 and PKCS#7 structures.
143 [Steve Henson, reported by Kenneth R. Robinette
144 <support@securenetterm.com>]
146 *) Add CRYPTO_push_info() and CRYPTO_pop_info() calls to new ASN1
147 routines: without these tracing memory leaks is very painful.
148 Fix leaks in PKCS12 and PKCS7 routines.
151 *) Fix for Irix with NO_ASM.
152 ["Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
154 *) Add some EVP_add_digest_alias registrations (as found in
155 OpenSSL_add_all_digests()), to SSL_library_init()
156 aka OpenSSL_add_ssl_algorithms(). This provides improved
157 compatibility with peers using X.509 certificates
158 with unconventional AlgorithmIdentifier OIDs.
161 *) ./config script fixes.
162 [Ulf Moeller, Richard Levitte]
164 *) Make X509_time_adj() cope with the new behaviour of ASN1_TIME_new().
165 Previously it initialised the 'type' argument to V_ASN1_UTCTIME which
166 effectively meant GeneralizedTime would never be used. Now it
167 is initialised to -1 but X509_time_adj() now has to check the value
168 and use ASN1_TIME_set() if the value is not V_ASN1_UTCTIME or
169 V_ASN1_GENERALIZEDTIME, without this it always uses GeneralizedTime.
170 [Steve Henson, reported by Kenneth R. Robinette
171 <support@securenetterm.com>]
173 *) Fixes to BN_to_ASN1_INTEGER when bn is zero. This would previously
174 result in a zero length in the ASN1_INTEGER structure which was
175 not consistent with the structure when d2i_ASN1_INTEGER() was used
176 and would cause ASN1_INTEGER_cmp() to fail. Enhance s2i_ASN1_INTEGER()
177 to cope with hex and negative integers. Fix bug in i2a_ASN1_INTEGER()
178 where it did not print out a minus for negative ASN1_INTEGER.
181 *) Fix 'openssl passwd -1'.
184 *) Add summary printout to ocsp utility. The various functions which
185 convert status values to strings have been renamed to:
186 OCSP_response_status_str(), OCSP_cert_status_str() and
187 OCSP_crl_reason_str() and are no longer static. New options
188 to verify nonce values and to disable verification. OCSP response
189 printout format cleaned up.
192 *) Add additional OCSP certificate checks. These are those specified
193 in RFC2560. This consists of two separate checks: the CA of the
194 certificate being checked must either be the OCSP signer certificate
195 or the issuer of the OCSP signer certificate. In the latter case the
196 OCSP signer certificate must contain the OCSP signing extended key
197 usage. This check is performed by attempting to match the OCSP
198 signer or the OCSP signer CA to the issuerNameHash and issuerKeyHash
199 in the OCSP_CERTID structures of the response.
202 *) Initial OCSP certificate verification added to OCSP_basic_verify()
203 and related routines. This uses the standard OpenSSL certificate
204 verify routines to perform initial checks (just CA validity) and
205 to obtain the certificate chain. Then additional checks will be
206 performed on the chain. Currently the root CA is checked to see
207 if it is explicitly trusted for OCSP signing. This is used to set
208 a root CA as a global signing root: that is any certificate that
209 chains to that CA is an acceptable OCSP signing certificate.
212 *) New '-extfile ...' option to 'openssl ca' for reading X.509v3
213 extensions from a separate configuration file.
214 As when reading extensions from the main configuration file,
215 the '-extensions ...' option may be used for specifying the
217 [Massimiliano Pala <madwolf@comune.modena.it>]
219 *) Change PKCS12_key_gen_asc() so it can cope with non null
220 terminated strings whose length is passed in the passlen
221 parameter, for example from PEM callbacks. This was done
222 by adding an extra length parameter to asc2uni().
223 [Steve Henson, reported by <oddissey@samsung.co.kr>]
225 *) New OCSP utility. Allows OCSP requests to be generated or
226 read. The request can be sent to a responder and the output
227 parsed, outputed or printed in text form. Not complete yet:
228 still needs to check the OCSP response validity.
231 *) New subcommands for 'openssl ca':
232 'openssl ca -status <serial>' prints the status of the cert with
233 the given serial number (according to the index file).
234 'openssl ca -updatedb' updates the expiry status of certificates
236 [Massimiliano Pala <madwolf@comune.modena.it>]
238 *) New '-newreq-nodes' command option to CA.pl. This is like
239 '-newreq', but calls 'openssl req' with the '-nodes' option
240 so that the resulting key is not encrypted.
241 [Damien Miller <djm@mindrot.org>]
243 *) New configuration for the GNU Hurd.
244 [Jonathan Bartlett <johnnyb@wolfram.com> via Richard Levitte]
246 *) Initial code to implement OCSP basic response verify. This
247 is currently incomplete. Currently just finds the signer's
248 certificate and verifies the signature on the response.
251 *) New SSLeay_version code SSLEAY_DIR to determine the compiled-in
252 value of OPENSSLDIR. This is available via the new '-d' option
253 to 'openssl version', and is also included in 'openssl version -a'.
256 *) Fix C code generated by 'openssl dsaparam -C': If a BN_bin2bn
257 call failed, free the DSA structure.
260 *) Allowing defining memory allocation callbacks that will be given
261 file name and line number information in additional arguments
262 (a const char* and an int). The basic functionality remains, as
263 well as the original possibility to just replace malloc(),
264 realloc() and free() by functions that do not know about these
265 additional arguments. To register and find out the current
266 settings for extended allocation functions, the following
267 functions are provided:
269 CRYPTO_set_mem_ex_functions
270 CRYPTO_set_locked_mem_ex_functions
271 CRYPTO_get_mem_ex_functions
272 CRYPTO_get_locked_mem_ex_functions
274 These work the same way as CRYPTO_set_mem_functions and friends.
275 CRYPTO_get_[locked_]mem_functions now writes 0 where such an
276 extended allocation function is enabled.
277 Similarly, CRYPTO_get_[locked_]mem_ex_functions writes 0 where
278 a conventional allocation function is enabled.
279 [Richard Levitte, Bodo Moeller]
281 *) Fix to uni2asc() to cope with zero length Unicode strings.
282 These are present in some PKCS#12 files.
285 *) Finish off removing the remaining LHASH function pointer casts.
286 There should no longer be any prototype-casting required when using
287 the LHASH abstraction, and any casts that remain are "bugs". See
288 the callback types and macros at the head of lhash.h for details
289 (and "OBJ_cleanup" in crypto/objects/obj_dat.c as an example).
292 *) Add automatic query of EGD sockets in RAND_poll() for the unix variant.
293 If an EGD or PRNGD is running and enough entropy is returned, automatic
294 seeding like with /dev/[u]random will be performed.
295 Positions tried are: /etc/entropy, /var/run/egd-pool.
298 *) Change the Unix RAND_poll() variant to be able to poll several
299 random devices, as specified by DEVRANDOM, until a sufficient amount
300 of data has been collected. We spend at most 10 ms on each file
301 (select timeout) and read in non-blocking mode. DEVRANDOM now
302 defaults to the list "/dev/urandom", "/dev/random", "/dev/srandom"
303 (previously it was just the string "/dev/urandom"), so on typical
304 platforms the 10 ms delay will never occur.
305 Also separate out the Unix variant to its own file, rand_unix.c.
306 For VMS, there's a currently-empty rand_vms.c.
309 *) Move OCSP client related routines to ocsp_cl.c. These
310 provide utility functions which an application needing
311 to issue a request to an OCSP responder and analyse the
312 response will typically need: as opposed to those which an
313 OCSP responder itself would need which will be added later.
315 OCSP_request_sign() signs an OCSP request with an API similar
316 to PKCS7_sign(). OCSP_response_status() returns status of OCSP
317 response. OCSP_response_get1_basic() extracts basic response
318 from response. OCSP_resp_find_status(): finds and extracts status
319 information from an OCSP_CERTID structure (which will be created
320 when the request structure is built). These are built from lower
321 level functions which work on OCSP_SINGLERESP structures but
322 wont normally be used unless the application wishes to examine
323 extensions in the OCSP response for example.
325 Replace nonce routines with a pair of functions.
326 OCSP_request_add1_nonce() adds a nonce value and optionally
327 generates a random value. OCSP_check_nonce() checks the
328 validity of the nonce in an OCSP response.
331 *) Change function OCSP_request_add() to OCSP_request_add0_id().
332 This doesn't copy the supplied OCSP_CERTID and avoids the
333 need to free up the newly created id. Change return type
334 to OCSP_ONEREQ to return the internal OCSP_ONEREQ structure.
335 This can then be used to add extensions to the request.
336 Deleted OCSP_request_new(), since most of its functionality
337 is now in OCSP_REQUEST_new() (and the case insensitive name
338 clash) apart from the ability to set the request name which
339 will be added elsewhere.
342 *) Update OCSP API. Remove obsolete extensions argument from
343 various functions. Extensions are now handled using the new
344 OCSP extension code. New simple OCSP HTTP function which
345 can be used to send requests and parse the response.
348 *) Fix the PKCS#7 (S/MIME) code to work with new ASN1. Two new
349 ASN1_ITEM structures help with sign and verify. PKCS7_ATTR_SIGN
350 uses the special reorder version of SET OF to sort the attributes
351 and reorder them to match the encoded order. This resolves a long
352 standing problem: a verify on a PKCS7 structure just after signing
353 it used to fail because the attribute order did not match the
354 encoded order. PKCS7_ATTR_VERIFY does not reorder the attributes:
355 it uses the received order. This is necessary to tolerate some broken
356 software that does not order SET OF. This is handled by encoding
357 as a SEQUENCE OF but using implicit tagging (with UNIVERSAL class)
358 to produce the required SET OF.
361 *) Have mk1mf.pl generate the macros OPENSSL_BUILD_SHLIBCRYPTO and
362 OPENSSL_BUILD_SHLIBSSL and use them appropriately in the header
363 files to get correct declarations of the ASN.1 item variables.
366 *) Rewrite of PKCS#12 code to use new ASN1 functionality. Replace many
367 PKCS#12 macros with real functions. Fix two unrelated ASN1 bugs:
368 asn1_check_tlen() would sometimes attempt to use 'ctx' when it was
369 NULL and ASN1_TYPE was not dereferenced properly in asn1_ex_c2i().
370 New ASN1 macro: DECLARE_ASN1_ITEM() which just declares the relevant
371 ASN1_ITEM and no wrapper functions.
374 *) New functions or ASN1_item_d2i_fp() and ASN1_item_d2i_bio(). These
375 replace the old function pointer based I/O routines. Change most of
376 the *_d2i_bio() and *_d2i_fp() functions to use these.
379 *) Enhance mkdef.pl to be more accepting about spacing in C preprocessor
380 lines, recognice more "algorithms" that can be deselected, and make
381 it complain about algorithm deselection that isn't recognised.
384 *) New ASN1 functions to handle dup, sign, verify, digest, pack and
385 unpack operations in terms of ASN1_ITEM. Modify existing wrappers
386 to use new functions. Add NO_ASN1_OLD which can be set to remove
387 some old style ASN1 functions: this can be used to determine if old
388 code will still work when these eventually go away.
391 *) New extension functions for OCSP structures, these follow the
392 same conventions as certificates and CRLs.
395 *) New function X509V3_add1_i2d(). This automatically encodes and
396 adds an extension. Its behaviour can be customised with various
397 flags to append, replace or delete. Various wrappers added for
398 certifcates and CRLs.
401 *) Fix to avoid calling the underlying ASN1 print routine when
402 an extension cannot be parsed. Correct a typo in the
403 OCSP_SERVICELOC extension. Tidy up print OCSP format.
406 *) Increase s2->wbuf allocation by one byte in ssl2_new (ssl/s2_lib.c).
407 Otherwise do_ssl_write (ssl/s2_pkt.c) will write beyond buffer limits
408 when writing a 32767 byte record.
409 [Bodo Moeller; problem reported by Eric Day <eday@concentric.net>]
411 *) In RSA_eay_public_{en,ed}crypt and RSA_eay_mod_exp (rsa_eay.c),
412 obtain lock CRYPTO_LOCK_RSA before setting rsa->_method_mod_{n,p,q}.
414 (RSA objects have a reference count access to which is protected
415 by CRYPTO_LOCK_RSA [see rsa_lib.c, s3_srvr.c, ssl_cert.c, ssl_rsa.c],
416 so they are meant to be shared between threads.)
417 [Bodo Moeller, Geoff Thorpe; original patch submitted by
418 "Reddie, Steven" <Steven.Reddie@ca.com>]
420 *) Make mkdef.pl parse some of the ASN1 macros and add apropriate
421 entries for variables.
424 *) Fix a deadlock in CRYPTO_mem_leaks().
427 *) Add functionality to apps/openssl.c for detecting locking
428 problems: As the program is single-threaded, all we have
429 to do is register a locking callback using an array for
430 storing which locks are currently held by the program.
433 *) Use a lock around the call to CRYPTO_get_ex_new_index() in
434 SSL_get_ex_data_X509_STORE_idx(), which is used in
435 ssl_verify_cert_chain() and thus can be called at any time
436 during TLS/SSL handshakes so that thread-safety is essential.
437 Unfortunately, the ex_data design is not at all suited
438 for multi-threaded use, so it probably should be abolished.
441 *) Added Broadcom "ubsec" ENGINE to OpenSSL.
442 [Broadcom, tweaked and integrated by Geoff Thorpe]
444 *) Move common extension printing code to new function
445 X509V3_print_extensions(). Reorganise OCSP print routines and
446 implement some needed OCSP ASN1 functions. Add OCSP extensions.
449 *) New function X509_signature_print() to remove duplication in some
453 *) Add a special meaning when SET OF and SEQUENCE OF flags are both
454 set (this was treated exactly the same as SET OF previously). This
455 is used to reorder the STACK representing the structure to match the
456 encoding. This will be used to get round a problem where a PKCS7
457 structure which was signed could not be verified because the STACK
458 order did not reflect the encoded order.
461 *) Reimplement the OCSP ASN1 module using the new code.
464 *) Update the X509V3 code to permit the use of an ASN1_ITEM structure
465 for its ASN1 operations. The old style function pointers still exist
466 for now but they will eventually go away.
469 *) Merge in replacement ASN1 code from the ASN1 branch. This almost
470 completely replaces the old ASN1 functionality with a table driven
471 encoder and decoder which interprets an ASN1_ITEM structure describing
472 the ASN1 module. Compatibility with the existing ASN1 API (i2d,d2i) is
473 largely maintained. Almost all of the old asn1_mac.h macro based ASN1
474 has also been converted to the new form.
477 *) Change BN_mod_exp_recp so that negative moduli are tolerated
478 (the sign is ignored). Similarly, ignore the sign in BN_MONT_CTX_set
479 so that BN_mod_exp_mont and BN_mod_exp_mont_word work
483 *) Fix BN_uadd and BN_usub: Always return non-negative results instead
484 of not touching the result's sign bit.
487 *) BN_div bugfix: If the result is 0, the sign (res->neg) must not be
491 *) Changed the LHASH code to use prototypes for callbacks, and created
492 macros to declare and implement thin (optionally static) functions
493 that provide type-safety and avoid function pointer casting for the
494 type-specific callbacks.
497 *) Use better test patterns in bntest.
500 *) Added Kerberos Cipher Suites to be used with TLS, as written in
502 [Veers Staats <staatsvr@asc.hpc.mil>,
503 Jeffrey Altman <jaltman@columbia.edu>, via Richard Levitte]
505 *) rand_win.c fix for Borland C.
508 *) BN_rshift bugfix for n == 0.
511 *) Reformat the FAQ so the different questions and answers can be divided
512 in sections depending on the subject.
515 *) Have the zlib compression code load ZLIB.DLL dynamically under
519 *) New function BN_mod_sqrt for computing square roots modulo a prime
520 (using the probabilistic Tonelli-Shanks algorithm unless
521 p == 3 (mod 4) or p == 5 (mod 8), which are cases that can
522 be handled deterministically).
523 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
525 *) Store verify_result within SSL_SESSION also for client side to
526 avoid potential security hole. (Re-used sessions on the client side
527 always resulted in verify_result==X509_V_OK, not using the original
528 result of the server certificate verification.)
531 *) Make BN_mod_inverse faster by explicitly handling small quotients
532 in the Euclid loop. (Speed gain about 20% for small moduli [256 or
533 512 bits], about 30% for larger ones [1024 or 2048 bits].)
536 *) Fix ssl3_pending: If the record in s->s3->rrec is not of type
537 SSL3_RT_APPLICATION_DATA, return 0.
538 Similarly, change ssl2_pending to return 0 if SSL_in_init(s) is true.
542 Both ssl2_peek and ssl3_peek, which were totally broken in earlier
543 releases, have been re-implemented by renaming the previous
544 implementations of ssl2_read and ssl3_read to ssl2_read_internal
545 and ssl3_read_internal, respectively, and adding 'peek' parameters
546 to them. The new ssl[23]_{read,peek} functions are calls to
547 ssl[23]_read_internal with the 'peek' flag set appropriately.
548 A 'peek' parameter has also been added to ssl3_read_bytes, which
549 does the actual work for ssl3_read_internal.
552 *) New function BN_kronecker.
555 *) Fix BN_gcd so that it works on negative inputs; the result is
556 positive unless both parameters are zero.
557 Previously something reasonably close to an infinite loop was
558 possible because numbers could be growing instead of shrinking
559 in the implementation of Euclid's algorithm.
562 *) Fix BN_is_word() and BN_is_one() macros to take into account the
563 sign of the number in question.
565 Fix BN_is_word(a,w) to work correctly for w == 0.
567 The old BN_is_word(a,w) macro is now called BN_abs_is_word(a,w)
568 because its test if the absolute value of 'a' equals 'w'.
569 Note that BN_abs_is_word does *not* handle w == 0 reliably;
570 it exists mostly for use in the implementations of BN_is_zero(),
571 BN_is_one(), and BN_is_word().
574 *) Initialise "ex_data" member of RSA/DSA/DH structures prior to calling
575 the method-specific "init()" handler. Also clean up ex_data after
576 calling the method-specific "finish()" handler. Previously, this was
577 happening the other way round.
580 *) New function BN_swap.
583 *) Use BN_nnmod instead of BN_mod in crypto/bn/bn_exp.c so that
584 the exponentiation functions are more likely to produce reasonable
585 results on negative inputs.
588 *) Change BN_mod_mul so that the result is always non-negative.
589 Previously, it could be negative if one of the factors was negative;
590 I don't think anyone really wanted that behaviour.
593 *) Move BN_mod_... functions into new file crypto/bn/bn_mod.c
594 (except for exponentiation, which stays in crypto/bn/bn_exp.c,
595 and BN_mod_mul_reciprocal, which stays in crypto/bn/bn_recp.c)
596 and add new functions:
609 These functions always generate non-negative results.
611 BN_nnmod otherwise is like BN_mod (if BN_mod computes a remainder r
612 such that |m| < r < 0, BN_nnmod will output rem + |m| instead).
614 BN_mod_XXX_quick(r, a, [b,] m) generates the same result as
615 BN_mod_XXX(r, a, [b,] m, ctx), but requires that a [and b]
617 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
619 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
620 was actually never needed) and in BN_mul(). The removal in BN_mul()
621 required a small change in bn_mul_part_recursive() and the addition
622 of the functions bn_cmp_part_words(), bn_sub_part_words() and
623 bn_add_part_words(), which do the same thing as bn_cmp_words(),
624 bn_sub_words() and bn_add_words() except they take arrays with
628 *) In 'openssl passwd', verify passwords read from the terminal
629 unless the '-salt' option is used (which usually means that
630 verification would just waste user's time since the resulting
631 hash is going to be compared with some given password hash)
632 or the new '-noverify' option is used.
634 This is an incompatible change, but it does not affect
635 non-interactive use of 'openssl passwd' (passwords on the command
636 line, '-stdin' option, '-in ...' option) and thus should not
640 *) Remove all references to RSAref, since there's no more need for it.
643 *) Increase BN_CTX_NUM (the number of BIGNUMs in a BN_CTX) to 16.
644 The previous value, 12, was not always sufficient for BN_mod_exp().
647 *) Make DSO load along a path given through an environment variable
648 (SHLIB_PATH) with shl_load().
651 *) Constify the ENGINE code as a result of BIGNUM constification.
652 Also constify the RSA code and most things related to it. In a
653 few places, most notable in the depth of the ASN.1 code, ugly
654 casts back to non-const were required (to be solved at a later
658 *) Make it so the openssl application has all engines loaded by default.
661 *) Constify the BIGNUM routines a little more.
664 *) Make sure that shared libraries get the internal name engine with
665 the full version number and not just 0. This should mark the
666 shared libraries as not backward compatible. Of course, this should
667 be changed again when we can guarantee backward binary compatibility.
670 *) Add the following functions:
676 ENGINE_load_builtin_engines()
678 That way, an application can itself choose if external engines that
679 are built-in in OpenSSL shall ever be used or not. The benefit is
680 that applications won't have to be linked with libdl or other dso
681 libraries unless it's really needed.
683 Changed 'openssl engine' to load all engines on demand.
684 Changed the engine header files to avoid the duplication of some
685 declarations (they differed!).
688 *) 'openssl engine' can now list capabilities.
691 *) Better error reporting in 'openssl engine'.
694 *) Never call load_dh_param(NULL) in s_server.
697 *) Add engine application. It can currently list engines by name and
698 identity, and test if they are actually available.
701 *) Add support for shared libraries under Irix.
702 [Albert Chin-A-Young <china@thewrittenword.com>]
704 *) Improve RPM specification file by forcing symbolic linking and making
705 sure the installed documentation is also owned by root.root.
706 [Damien Miller <djm@mindrot.org>]
708 *) Add configuration option to build on Linux on both big-endian and
710 [Ralf Baechle <ralf@uni-koblenz.de>]
712 *) Give the OpenSSL applications more possibilities to make use of
713 keys (public as well as private) handled by engines.
716 *) Add OCSP code that comes from CertCo.
719 *) Add VMS support for the Rijndael code.
722 *) Added untested support for Nuron crypto accelerator.
725 *) Add support for external cryptographic devices. This code was
726 previously distributed separately as the "engine" branch.
727 [Geoff Thorpe, Richard Levitte]
729 *) Rework the filename-translation in the DSO code. It is now possible to
730 have far greater control over how a "name" is turned into a filename
731 depending on the operating environment and any oddities about the
732 different shared library filenames on each system.
735 *) Support threads on FreeBSD-elf in Configure.
738 *) Add the possibility to create shared libraries on HP-UX
741 *) Fix for SHA1 assembly problem with MASM: it produces
742 warnings about corrupt line number information when assembling
743 with debugging information. This is caused by the overlapping
745 [Bernd Matthes <mainbug@celocom.de>, Steve Henson]
748 NCONF_get_number() has no error checking at all. As a replacement,
749 NCONF_get_number_e() is defined (_e for "error checking") and is
750 promoted strongly. The old NCONF_get_number is kept around for
751 binary backward compatibility.
752 Make it possible for methods to load from something other than a BIO,
753 by providing a function pointer that is given a name instead of a BIO.
754 For example, this could be used to load configuration data from an
758 *) Fix typo in get_cert_by_subject() in by_dir.c
759 [Jean-Marc Desperrier <jean-marc.desperrier@certplus.com>]
761 *) Rework the system to generate shared libraries:
763 - Make note of the expected extension for the shared libraries and
764 if there is a need for symbolic links from for example libcrypto.so.0
765 to libcrypto.so.0.9.7. There is extended info in Configure for
768 - Make as few rebuilds of the shared libraries as possible.
770 - Still avoid linking the OpenSSL programs with the shared libraries.
772 - When installing, install the shared libraries separately from the
776 *) Fix for non blocking accept BIOs. Added new I/O special reason
777 BIO_RR_ACCEPT to cover this case. Previously use of accept BIOs
778 with non blocking I/O was not possible because no retry code was
779 implemented. Also added new SSL code SSL_WANT_ACCEPT to cover
783 *) Added the beginnings of Rijndael support.
786 *) Fix for bug in DirectoryString mask setting. Add support for
787 X509_NAME_print_ex() in 'req' and X509_print_ex() function
788 to allow certificate printing to more controllable, additional
789 'certopt' option to 'x509' to allow new printing options to be
793 *) Clean old EAY MD5 hack from e_os.h.
796 *) Fix SSL_CTX_set_read_ahead macro to actually use its argument.
798 Copy SSL_CTX's read_ahead flag to SSL object directly in SSL_new
799 and not in SSL_clear because the latter is also used by the
800 accept/connect functions; previously, the settings made by
801 SSL_set_read_ahead would be lost during the handshake.
802 [Bodo Moeller; problems reported by Anders Gertz <gertz@epact.se>]
804 *) Correct util/mkdef.pl to be selective about disabled algorithms.
805 Previously, it would create entries for disableed algorithms no
809 Changes between 0.9.5a and 0.9.6 [24 Sep 2000]
811 *) In ssl23_get_client_hello, generate an error message when faced
812 with an initial SSL 3.0/TLS record that is too small to contain the
813 first two bytes of the ClientHello message, i.e. client_version.
814 (Note that this is a pathologic case that probably has never happened
815 in real life.) The previous approach was to use the version number
816 from the record header as a substitute; but our protocol choice
817 should not depend on that one because it is not authenticated
818 by the Finished messages.
821 *) More robust randomness gathering functions for Windows.
822 [Jeffrey Altman <jaltman@columbia.edu>]
824 *) For compatibility reasons if the flag X509_V_FLAG_ISSUER_CHECK is
825 not set then we don't setup the error code for issuer check errors
826 to avoid possibly overwriting other errors which the callback does
827 handle. If an application does set the flag then we assume it knows
828 what it is doing and can handle the new informational codes
832 *) Fix for a nasty bug in ASN1_TYPE handling. ASN1_TYPE is used for
833 a general "ANY" type, as such it should be able to decode anything
834 including tagged types. However it didn't check the class so it would
835 wrongly interpret tagged types in the same way as their universal
836 counterpart and unknown types were just rejected. Changed so that the
837 tagged and unknown types are handled in the same way as a SEQUENCE:
838 that is the encoding is stored intact. There is also a new type
839 "V_ASN1_OTHER" which is used when the class is not universal, in this
840 case we have no idea what the actual type is so we just lump them all
844 *) On VMS, stdout may very well lead to a file that is written to
845 in a record-oriented fashion. That means that every write() will
846 write a separate record, which will be read separately by the
847 programs trying to read from it. This can be very confusing.
849 The solution is to put a BIO filter in the way that will buffer
850 text until a linefeed is reached, and then write everything a
851 line at a time, so every record written will be an actual line,
852 not chunks of lines and not (usually doesn't happen, but I've
853 seen it once) several lines in one record. BIO_f_linebuffer() is
856 Currently, it's a VMS-only method, because that's where it has
857 been tested well enough.
860 *) Remove 'optimized' squaring variant in BN_mod_mul_montgomery,
861 it can return incorrect results.
862 (Note: The buggy variant was not enabled in OpenSSL 0.9.5a,
863 but it was in 0.9.6-beta[12].)
866 *) Disable the check for content being present when verifying detached
867 signatures in pk7_smime.c. Some versions of Netscape (wrongly)
868 include zero length content when signing messages.
871 *) New BIO_shutdown_wr macro, which invokes the BIO_C_SHUTDOWN_WR
872 BIO_ctrl (for BIO pairs).
875 *) Add DSO method for VMS.
878 *) Bug fix: Montgomery multiplication could produce results with the
882 *) Add RPM specification openssl.spec and modify it to build three
883 packages. The default package contains applications, application
884 documentation and run-time libraries. The devel package contains
885 include files, static libraries and function documentation. The
886 doc package contains the contents of the doc directory. The original
887 openssl.spec was provided by Damien Miller <djm@mindrot.org>.
890 *) Add a large number of documentation files for many SSL routines.
891 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
893 *) Add a configuration entry for Sony News 4.
894 [NAKAJI Hiroyuki <nakaji@tutrp.tut.ac.jp>]
896 *) Don't set the two most significant bits to one when generating a
897 random number < q in the DSA library.
900 *) New SSL API mode 'SSL_MODE_AUTO_RETRY'. This disables the default
901 behaviour that SSL_read may result in SSL_ERROR_WANT_READ (even if
902 the underlying transport is blocking) if a handshake took place.
903 (The default behaviour is needed by applications such as s_client
904 and s_server that use select() to determine when to use SSL_read;
905 but for applications that know in advance when to expect data, it
906 just makes things more complicated.)
909 *) Add RAND_egd_bytes(), which gives control over the number of bytes read
913 *) Add a few more EBCDIC conditionals that make `req' and `x509'
914 work better on such systems.
915 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
917 *) Add two demo programs for PKCS12_parse() and PKCS12_create().
918 Update PKCS12_parse() so it copies the friendlyName and the
919 keyid to the certificates aux info.
922 *) Fix bug in PKCS7_verify() which caused an infinite loop
923 if there was more than one signature.
924 [Sven Uszpelkat <su@celocom.de>]
926 *) Major change in util/mkdef.pl to include extra information
927 about each symbol, as well as presentig variables as well
928 as functions. This change means that there's n more need
929 to rebuild the .num files when some algorithms are excluded.
932 *) Allow the verify time to be set by an application,
933 rather than always using the current time.
936 *) Phase 2 verify code reorganisation. The certificate
937 verify code now looks up an issuer certificate by a
938 number of criteria: subject name, authority key id
939 and key usage. It also verifies self signed certificates
940 by the same criteria. The main comparison function is
941 X509_check_issued() which performs these checks.
943 Lot of changes were necessary in order to support this
944 without completely rewriting the lookup code.
946 Authority and subject key identifier are now cached.
948 The LHASH 'certs' is X509_STORE has now been replaced
949 by a STACK_OF(X509_OBJECT). This is mainly because an
950 LHASH can't store or retrieve multiple objects with
953 As a result various functions (which were all internal
954 use only) have changed to handle the new X509_STORE
955 structure. This will break anything that messed round
956 with X509_STORE internally.
958 The functions X509_STORE_add_cert() now checks for an
959 exact match, rather than just subject name.
961 The X509_STORE API doesn't directly support the retrieval
962 of multiple certificates matching a given criteria, however
963 this can be worked round by performing a lookup first
964 (which will fill the cache with candidate certificates)
965 and then examining the cache for matches. This is probably
966 the best we can do without throwing out X509_LOOKUP
967 entirely (maybe later...).
969 The X509_VERIFY_CTX structure has been enhanced considerably.
971 All certificate lookup operations now go via a get_issuer()
972 callback. Although this currently uses an X509_STORE it
973 can be replaced by custom lookups. This is a simple way
974 to bypass the X509_STORE hackery necessary to make this
975 work and makes it possible to use more efficient techniques
976 in future. A very simple version which uses a simple
977 STACK for its trusted certificate store is also provided
978 using X509_STORE_CTX_trusted_stack().
980 The verify_cb() and verify() callbacks now have equivalents
981 in the X509_STORE_CTX structure.
983 X509_STORE_CTX also has a 'flags' field which can be used
984 to customise the verify behaviour.
987 *) Add new PKCS#7 signing option PKCS7_NOSMIMECAP which
988 excludes S/MIME capabilities.
991 *) When a certificate request is read in keep a copy of the
992 original encoding of the signed data and use it when outputing
993 again. Signatures then use the original encoding rather than
994 a decoded, encoded version which may cause problems if the
995 request is improperly encoded.
998 *) For consistency with other BIO_puts implementations, call
999 buffer_write(b, ...) directly in buffer_puts instead of calling
1002 In BIO_puts, increment b->num_write as in BIO_write.
1003 [Peter.Sylvester@EdelWeb.fr]
1005 *) Fix BN_mul_word for the case where the word is 0. (We have to use
1006 BN_zero, we may not return a BIGNUM with an array consisting of
1010 *) Avoid calling abort() from within the library when problems are
1011 detected, except if preprocessor symbols have been defined
1012 (such as REF_CHECK, BN_DEBUG etc.).
1015 *) New openssl application 'rsautl'. This utility can be
1016 used for low level RSA operations. DER public key
1017 BIO/fp routines also added.
1020 *) New Configure entry and patches for compiling on QNX 4.
1021 [Andreas Schneider <andreas@ds3.etech.fh-hamburg.de>]
1023 *) A demo state-machine implementation was sponsored by
1024 Nuron (http://www.nuron.com/) and is now available in
1025 demos/state_machine.
1028 *) New options added to the 'dgst' utility for signature
1029 generation and verification.
1032 *) Unrecognized PKCS#7 content types are now handled via a
1033 catch all ASN1_TYPE structure. This allows unsupported
1034 types to be stored as a "blob" and an application can
1035 encode and decode it manually.
1038 *) Fix various signed/unsigned issues to make a_strex.c
1040 [Oscar Jacobsson <oscar.jacobsson@celocom.com>]
1042 *) ASN1 fixes. i2d_ASN1_OBJECT was not returning the correct
1043 length if passed a buffer. ASN1_INTEGER_to_BN failed
1044 if passed a NULL BN and its argument was negative.
1045 [Steve Henson, pointed out by Sven Heiberg <sven@tartu.cyber.ee>]
1047 *) Modification to PKCS#7 encoding routines to output definite
1048 length encoding. Since currently the whole structures are in
1049 memory there's not real point in using indefinite length
1050 constructed encoding. However if OpenSSL is compiled with
1051 the flag PKCS7_INDEFINITE_ENCODING the old form is used.
1054 *) Added BIO_vprintf() and BIO_vsnprintf().
1057 *) Added more prefixes to parse for in the the strings written
1058 through a logging bio, to cover all the levels that are available
1059 through syslog. The prefixes are now:
1061 PANIC, EMERG, EMR => LOG_EMERG
1062 ALERT, ALR => LOG_ALERT
1063 CRIT, CRI => LOG_CRIT
1064 ERROR, ERR => LOG_ERR
1065 WARNING, WARN, WAR => LOG_WARNING
1066 NOTICE, NOTE, NOT => LOG_NOTICE
1067 INFO, INF => LOG_INFO
1068 DEBUG, DBG => LOG_DEBUG
1070 and as before, if none of those prefixes are present at the
1071 beginning of the string, LOG_ERR is chosen.
1073 On Win32, the LOG_* levels are mapped according to this:
1075 LOG_EMERG, LOG_ALERT, LOG_CRIT, LOG_ERR => EVENTLOG_ERROR_TYPE
1076 LOG_WARNING => EVENTLOG_WARNING_TYPE
1077 LOG_NOTICE, LOG_INFO, LOG_DEBUG => EVENTLOG_INFORMATION_TYPE
1081 *) Made it possible to reconfigure with just the configuration
1082 argument "reconf" or "reconfigure". The command line arguments
1083 are stored in Makefile.ssl in the variable CONFIGURE_ARGS,
1084 and are retrieved from there when reconfiguring.
1088 [Assar Westerlund <assar@sics.se>, Richard Levitte]
1090 *) Add the arguments -CAfile and -CApath to the pkcs12 utility.
1093 *) The obj_dat.pl script was messing up the sorting of object
1094 names. The reason was that it compared the quoted version
1095 of strings as a result "OCSP" > "OCSP Signing" because
1096 " > SPACE. Changed script to store unquoted versions of
1097 names and add quotes on output. It was also omitting some
1098 names from the lookup table if they were given a default
1099 value (that is if SN is missing it is given the same
1100 value as LN and vice versa), these are now added on the
1101 grounds that if an object has a name we should be able to
1102 look it up. Finally added warning output when duplicate
1103 short or long names are found.
1106 *) Changes needed for Tandem NSK.
1107 [Scott Uroff <scott@xypro.com>]
1109 *) Fix SSL 2.0 rollback checking: Due to an off-by-one error in
1110 RSA_padding_check_SSLv23(), special padding was never detected
1111 and thus the SSL 3.0/TLS 1.0 countermeasure against protocol
1112 version rollback attacks was not effective.
1114 In s23_clnt.c, don't use special rollback-attack detection padding
1115 (RSA_SSLV23_PADDING) if SSL 2.0 is the only protocol enabled in the
1116 client; similarly, in s23_srvr.c, don't do the rollback check if
1117 SSL 2.0 is the only protocol enabled in the server.
1120 *) Make it possible to get hexdumps of unprintable data with 'openssl
1121 asn1parse'. By implication, the functions ASN1_parse_dump() and
1122 BIO_dump_indent() are added.
1125 *) New functions ASN1_STRING_print_ex() and X509_NAME_print_ex()
1126 these print out strings and name structures based on various
1127 flags including RFC2253 support and proper handling of
1128 multibyte characters. Added options to the 'x509' utility
1129 to allow the various flags to be set.
1132 *) Various fixes to use ASN1_TIME instead of ASN1_UTCTIME.
1133 Also change the functions X509_cmp_current_time() and
1134 X509_gmtime_adj() work with an ASN1_TIME structure,
1135 this will enable certificates using GeneralizedTime in validity
1136 dates to be checked.
1139 *) Make the NEG_PUBKEY_BUG code (which tolerates invalid
1140 negative public key encodings) on by default,
1141 NO_NEG_PUBKEY_BUG can be set to disable it.
1144 *) New function c2i_ASN1_OBJECT() which acts on ASN1_OBJECT
1145 content octets. An i2c_ASN1_OBJECT is unnecessary because
1146 the encoding can be trivially obtained from the structure.
1149 *) crypto/err.c locking bugfix: Use write locks (CRYPTO_w_[un]lock),
1150 not read locks (CRYPTO_r_[un]lock).
1153 *) A first attempt at creating official support for shared
1154 libraries through configuration. I've kept it so the
1155 default is static libraries only, and the OpenSSL programs
1156 are always statically linked for now, but there are
1157 preparations for dynamic linking in place.
1158 This has been tested on Linux and True64.
1161 *) Randomness polling function for Win9x, as described in:
1162 Peter Gutmann, Software Generation of Practically Strong
1166 *) Fix so PRNG is seeded in req if using an already existing
1170 *) New options to smime application. -inform and -outform
1171 allow alternative formats for the S/MIME message including
1172 PEM and DER. The -content option allows the content to be
1173 specified separately. This should allow things like Netscape
1174 form signing output easier to verify.
1177 *) Fix the ASN1 encoding of tags using the 'long form'.
1180 *) New ASN1 functions, i2c_* and c2i_* for INTEGER and BIT
1181 STRING types. These convert content octets to and from the
1182 underlying type. The actual tag and length octets are
1183 already assumed to have been read in and checked. These
1184 are needed because all other string types have virtually
1185 identical handling apart from the tag. By having versions
1186 of the ASN1 functions that just operate on content octets
1187 IMPLICIT tagging can be handled properly. It also allows
1188 the ASN1_ENUMERATED code to be cut down because ASN1_ENUMERATED
1189 and ASN1_INTEGER are identical apart from the tag.
1192 *) Change the handling of OID objects as follows:
1194 - New object identifiers are inserted in objects.txt, following
1195 the syntax given in objects.README.
1196 - objects.pl is used to process obj_mac.num and create a new
1198 - obj_dat.pl is used to create a new obj_dat.h, using the data in
1201 This is currently kind of a hack, and the perl code in objects.pl
1202 isn't very elegant, but it works as I intended. The simplest way
1203 to check that it worked correctly is to look in obj_dat.h and
1204 check the array nid_objs and make sure the objects haven't moved
1205 around (this is important!). Additions are OK, as well as
1206 consistent name changes.
1209 *) Add BSD-style MD5-based passwords to 'openssl passwd' (option '-1').
1212 *) Addition of the command line parameter '-rand file' to 'openssl req'.
1213 The given file adds to whatever has already been seeded into the
1214 random pool through the RANDFILE configuration file option or
1215 environment variable, or the default random state file.
1218 *) mkstack.pl now sorts each macro group into lexical order.
1219 Previously the output order depended on the order the files
1220 appeared in the directory, resulting in needless rewriting
1224 *) Patches to make OpenSSL compile under Win32 again. Mostly
1225 work arounds for the VC++ problem that it treats func() as
1226 func(void). Also stripped out the parts of mkdef.pl that
1227 added extra typesafe functions: these no longer exist.
1230 *) Reorganisation of the stack code. The macros are now all
1231 collected in safestack.h . Each macro is defined in terms of
1232 a "stack macro" of the form SKM_<name>(type, a, b). The
1233 DEBUG_SAFESTACK is now handled in terms of function casts,
1234 this has the advantage of retaining type safety without the
1235 use of additional functions. If DEBUG_SAFESTACK is not defined
1236 then the non typesafe macros are used instead. Also modified the
1237 mkstack.pl script to handle the new form. Needs testing to see
1238 if which (if any) compilers it chokes and maybe make DEBUG_SAFESTACK
1239 the default if no major problems. Similar behaviour for ASN1_SET_OF
1240 and PKCS12_STACK_OF.
1243 *) When some versions of IIS use the 'NET' form of private key the
1244 key derivation algorithm is different. Normally MD5(password) is
1245 used as a 128 bit RC4 key. In the modified case
1246 MD5(MD5(password) + "SGCKEYSALT") is used insted. Added some
1247 new functions i2d_RSA_NET(), d2i_RSA_NET() etc which are the same
1248 as the old Netscape_RSA functions except they have an additional
1249 'sgckey' parameter which uses the modified algorithm. Also added
1250 an -sgckey command line option to the rsa utility. Thanks to
1251 Adrian Peck <bertie@ncipher.com> for posting details of the modified
1252 algorithm to openssl-dev.
1255 *) The evp_local.h macros were using 'c.##kname' which resulted in
1256 invalid expansion on some systems (SCO 5.0.5 for example).
1257 Corrected to 'c.kname'.
1258 [Phillip Porch <root@theporch.com>]
1260 *) New X509_get1_email() and X509_REQ_get1_email() functions that return
1261 a STACK of email addresses from a certificate or request, these look
1262 in the subject name and the subject alternative name extensions and
1263 omit any duplicate addresses.
1266 *) Re-implement BN_mod_exp2_mont using independent (and larger) windows.
1267 This makes DSA verification about 2 % faster.
1270 *) Increase maximum window size in BN_mod_exp_... to 6 bits instead of 5
1271 (meaning that now 2^5 values will be precomputed, which is only 4 KB
1272 plus overhead for 1024 bit moduli).
1273 This makes exponentiations about 0.5 % faster for 1024 bit
1274 exponents (as measured by "openssl speed rsa2048").
1277 *) Rename memory handling macros to avoid conflicts with other
1279 Malloc => OPENSSL_malloc
1280 Malloc_locked => OPENSSL_malloc_locked
1281 Realloc => OPENSSL_realloc
1282 Free => OPENSSL_free
1285 *) New function BN_mod_exp_mont_word for small bases (roughly 15%
1286 faster than BN_mod_exp_mont, i.e. 7% for a full DH exchange).
1289 *) CygWin32 support.
1290 [John Jarvie <jjarvie@newsguy.com>]
1292 *) The type-safe stack code has been rejigged. It is now only compiled
1293 in when OpenSSL is configured with the DEBUG_SAFESTACK option and
1294 by default all type-specific stack functions are "#define"d back to
1295 standard stack functions. This results in more streamlined output
1296 but retains the type-safety checking possibilities of the original
1300 *) The STACK code has been cleaned up, and certain type declarations
1301 that didn't make a lot of sense have been brought in line. This has
1302 also involved a cleanup of sorts in safestack.h to more correctly
1303 map type-safe stack functions onto their plain stack counterparts.
1304 This work has also resulted in a variety of "const"ifications of
1305 lots of the code, especially "_cmp" operations which should normally
1306 be prototyped with "const" parameters anyway.
1309 *) When generating bytes for the first time in md_rand.c, 'stir the pool'
1310 by seeding with STATE_SIZE dummy bytes (with zero entropy count).
1311 (The PRNG state consists of two parts, the large pool 'state' and 'md',
1312 where all of 'md' is used each time the PRNG is used, but 'state'
1313 is used only indexed by a cyclic counter. As entropy may not be
1314 well distributed from the beginning, 'md' is important as a
1315 chaining variable. However, the output function chains only half
1316 of 'md', i.e. 80 bits. ssleay_rand_add, on the other hand, chains
1317 all of 'md', and seeding with STATE_SIZE dummy bytes will result
1318 in all of 'state' being rewritten, with the new values depending
1319 on virtually all of 'md'. This overcomes the 80 bit limitation.)
1322 *) In ssl/s2_clnt.c and ssl/s3_clnt.c, call ERR_clear_error() when
1323 the handshake is continued after ssl_verify_cert_chain();
1324 otherwise, if SSL_VERIFY_NONE is set, remaining error codes
1325 can lead to 'unexplainable' connection aborts later.
1326 [Bodo Moeller; problem tracked down by Lutz Jaenicke]
1328 *) Major EVP API cipher revision.
1329 Add hooks for extra EVP features. This allows various cipher
1330 parameters to be set in the EVP interface. Support added for variable
1331 key length ciphers via the EVP_CIPHER_CTX_set_key_length() function and
1332 setting of RC2 and RC5 parameters.
1334 Modify EVP_OpenInit() and EVP_SealInit() to cope with variable key length
1337 Remove lots of duplicated code from the EVP library. For example *every*
1338 cipher init() function handles the 'iv' in the same way according to the
1339 cipher mode. They also all do nothing if the 'key' parameter is NULL and
1340 for CFB and OFB modes they zero ctx->num.
1342 New functionality allows removal of S/MIME code RC2 hack.
1344 Most of the routines have the same form and so can be declared in terms
1347 By shifting this to the top level EVP_CipherInit() it can be removed from
1348 all individual ciphers. If the cipher wants to handle IVs or keys
1349 differently it can set the EVP_CIPH_CUSTOM_IV or EVP_CIPH_ALWAYS_CALL_INIT
1352 Change lots of functions like EVP_EncryptUpdate() to now return a
1353 value: although software versions of the algorithms cannot fail
1354 any installed hardware versions can.
1357 *) Implement SSL_OP_TLS_ROLLBACK_BUG: In ssl3_get_client_key_exchange, if
1358 this option is set, tolerate broken clients that send the negotiated
1359 protocol version number instead of the requested protocol version
1363 *) Call dh_tmp_cb (set by ..._TMP_DH_CB) with correct 'is_export' flag;
1364 i.e. non-zero for export ciphersuites, zero otherwise.
1365 Previous versions had this flag inverted, inconsistent with
1366 rsa_tmp_cb (..._TMP_RSA_CB).
1367 [Bodo Moeller; problem reported by Amit Chopra]
1369 *) Add missing DSA library text string. Work around for some IIS
1370 key files with invalid SEQUENCE encoding.
1373 *) Add a document (doc/standards.txt) that list all kinds of standards
1374 and so on that are implemented in OpenSSL.
1377 *) Enhance c_rehash script. Old version would mishandle certificates
1378 with the same subject name hash and wouldn't handle CRLs at all.
1379 Added -fingerprint option to crl utility, to support new c_rehash
1383 *) Eliminate non-ANSI declarations in crypto.h and stack.h.
1386 *) Fix for SSL server purpose checking. Server checking was
1387 rejecting certificates which had extended key usage present
1388 but no ssl client purpose.
1389 [Steve Henson, reported by Rene Grosser <grosser@hisolutions.com>]
1391 *) Make PKCS#12 code work with no password. The PKCS#12 spec
1392 is a little unclear about how a blank password is handled.
1393 Since the password in encoded as a BMPString with terminating
1394 double NULL a zero length password would end up as just the
1395 double NULL. However no password at all is different and is
1396 handled differently in the PKCS#12 key generation code. NS
1397 treats a blank password as zero length. MSIE treats it as no
1398 password on export: but it will try both on import. We now do
1399 the same: PKCS12_parse() tries zero length and no password if
1400 the password is set to "" or NULL (NULL is now a valid password:
1401 it wasn't before) as does the pkcs12 application.
1404 *) Bugfixes in apps/x509.c: Avoid a memory leak; and don't use
1405 perror when PEM_read_bio_X509_REQ fails, the error message must
1406 be obtained from the error queue.
1409 *) Avoid 'thread_hash' memory leak in crypto/err/err.c by freeing
1410 it in ERR_remove_state if appropriate, and change ERR_get_state
1411 accordingly to avoid race conditions (this is necessary because
1412 thread_hash is no longer constant once set).
1415 *) Bugfix for linux-elf makefile.one.
1418 *) RSA_get_default_method() will now cause a default
1419 RSA_METHOD to be chosen if one doesn't exist already.
1420 Previously this was only set during a call to RSA_new()
1421 or RSA_new_method(NULL) meaning it was possible for
1422 RSA_get_default_method() to return NULL.
1425 *) Added native name translation to the existing DSO code
1426 that will convert (if the flag to do so is set) filenames
1427 that are sufficiently small and have no path information
1428 into a canonical native form. Eg. "blah" converted to
1429 "libblah.so" or "blah.dll" etc.
1432 *) New function ERR_error_string_n(e, buf, len) which is like
1433 ERR_error_string(e, buf), but writes at most 'len' bytes
1434 including the 0 terminator. For ERR_error_string_n, 'buf'
1436 [Damien Miller <djm@mindrot.org>, Bodo Moeller]
1438 *) CONF library reworked to become more general. A new CONF
1439 configuration file reader "class" is implemented as well as a
1440 new functions (NCONF_*, for "New CONF") to handle it. The now
1441 old CONF_* functions are still there, but are reimplemented to
1442 work in terms of the new functions. Also, a set of functions
1443 to handle the internal storage of the configuration data is
1444 provided to make it easier to write new configuration file
1445 reader "classes" (I can definitely see something reading a
1446 configuration file in XML format, for example), called _CONF_*,
1447 or "the configuration storage API"...
1449 The new configuration file reading functions are:
1451 NCONF_new, NCONF_free, NCONF_load, NCONF_load_fp, NCONF_load_bio,
1452 NCONF_get_section, NCONF_get_string, NCONF_get_numbre
1454 NCONF_default, NCONF_WIN32
1456 NCONF_dump_fp, NCONF_dump_bio
1458 NCONF_default and NCONF_WIN32 are method (or "class") choosers,
1459 NCONF_new creates a new CONF object. This works in the same way
1460 as other interfaces in OpenSSL, like the BIO interface.
1461 NCONF_dump_* dump the internal storage of the configuration file,
1462 which is useful for debugging. All other functions take the same
1463 arguments as the old CONF_* functions wth the exception of the
1464 first that must be a `CONF *' instead of a `LHASH *'.
1466 To make it easer to use the new classes with the old CONF_* functions,
1467 the function CONF_set_default_method is provided.
1470 *) Add '-tls1' option to 'openssl ciphers', which was already
1471 mentioned in the documentation but had not been implemented.
1472 (This option is not yet really useful because even the additional
1473 experimental TLS 1.0 ciphers are currently treated as SSL 3.0 ciphers.)
1476 *) Initial DSO code added into libcrypto for letting OpenSSL (and
1477 OpenSSL-based applications) load shared libraries and bind to
1478 them in a portable way.
1479 [Geoff Thorpe, with contributions from Richard Levitte]
1481 Changes between 0.9.5 and 0.9.5a [1 Apr 2000]
1483 *) Make sure _lrotl and _lrotr are only used with MSVC.
1485 *) Use lock CRYPTO_LOCK_RAND correctly in ssleay_rand_status
1486 (the default implementation of RAND_status).
1488 *) Rename openssl x509 option '-crlext', which was added in 0.9.5,
1489 to '-clrext' (= clear extensions), as intended and documented.
1490 [Bodo Moeller; inconsistency pointed out by Michael Attili
1493 *) Fix for HMAC. It wasn't zeroing the rest of the block if the key length
1494 was larger than the MD block size.
1495 [Steve Henson, pointed out by Yost William <YostW@tce.com>]
1497 *) Modernise PKCS12_parse() so it uses STACK_OF(X509) for its ca argument
1498 fix a leak when the ca argument was passed as NULL. Stop X509_PUBKEY_set()
1499 using the passed key: if the passed key was a private key the result
1500 of X509_print(), for example, would be to print out all the private key
1504 *) des_quad_cksum() byte order bug fix.
1505 [Ulf Möller, using the problem description in krb4-0.9.7, where
1506 the solution is attributed to Derrick J Brashear <shadow@DEMENTIA.ORG>]
1508 *) Fix so V_ASN1_APP_CHOOSE works again: however its use is strongly
1510 [Steve Henson, pointed out by Brian Korver <briank@cs.stanford.edu>]
1512 *) For easily testing in shell scripts whether some command
1513 'openssl XXX' exists, the new pseudo-command 'openssl no-XXX'
1514 returns with exit code 0 iff no command of the given name is available.
1515 'no-XXX' is printed in this case, 'XXX' otherwise. In both cases,
1516 the output goes to stdout and nothing is printed to stderr.
1517 Additional arguments are always ignored.
1519 Since for each cipher there is a command of the same name,
1520 the 'no-cipher' compilation switches can be tested this way.
1522 ('openssl no-XXX' is not able to detect pseudo-commands such
1523 as 'quit', 'list-XXX-commands', or 'no-XXX' itself.)
1526 *) Update test suite so that 'make test' succeeds in 'no-rsa' configuration.
1529 *) For SSL_[CTX_]set_tmp_dh, don't create a DH key if SSL_OP_SINGLE_DH_USE
1530 is set; it will be thrown away anyway because each handshake creates
1532 ssl_cert_dup, which is used by SSL_new, now copies DH keys in addition
1533 to parameters -- in previous versions (since OpenSSL 0.9.3) the
1534 'default key' from SSL_CTX_set_tmp_dh would always be lost, meanining
1535 you effectivly got SSL_OP_SINGLE_DH_USE when using this macro.
1538 *) New s_client option -ign_eof: EOF at stdin is ignored, and
1539 'Q' and 'R' lose their special meanings (quit/renegotiate).
1540 This is part of what -quiet does; unlike -quiet, -ign_eof
1541 does not suppress any output.
1544 *) Add compatibility options to the purpose and trust code. The
1545 purpose X509_PURPOSE_ANY is "any purpose" which automatically
1546 accepts a certificate or CA, this was the previous behaviour,
1547 with all the associated security issues.
1549 X509_TRUST_COMPAT is the old trust behaviour: only and
1550 automatically trust self signed roots in certificate store. A
1551 new trust setting X509_TRUST_DEFAULT is used to specify that
1552 a purpose has no associated trust setting and it should instead
1553 use the value in the default purpose.
1556 *) Fix the PKCS#8 DSA private key code so it decodes keys again
1557 and fix a memory leak.
1560 *) In util/mkerr.pl (which implements 'make errors'), preserve
1561 reason strings from the previous version of the .c file, as
1562 the default to have only downcase letters (and digits) in
1563 automatically generated reasons codes is not always appropriate.
1566 *) In ERR_load_ERR_strings(), build an ERR_LIB_SYS error reason table
1567 using strerror. Previously, ERR_reason_error_string() returned
1568 library names as reason strings for SYSerr; but SYSerr is a special
1569 case where small numbers are errno values, not library numbers.
1572 *) Add '-dsaparam' option to 'openssl dhparam' application. This
1573 converts DSA parameters into DH parameters. (When creating parameters,
1574 DSA_generate_parameters is used.)
1577 *) Include 'length' (recommended exponent length) in C code generated
1578 by 'openssl dhparam -C'.
1581 *) The second argument to set_label in perlasm was already being used
1582 so couldn't be used as a "file scope" flag. Moved to third argument
1586 *) In PEM_ASN1_write_bio and some other functions, use RAND_pseudo_bytes
1587 instead of RAND_bytes for encryption IVs and salts.
1590 *) Include RAND_status() into RAND_METHOD instead of implementing
1591 it only for md_rand.c Otherwise replacing the PRNG by calling
1592 RAND_set_rand_method would be impossible.
1595 *) Don't let DSA_generate_key() enter an infinite loop if the random
1596 number generation fails.
1599 *) New 'rand' application for creating pseudo-random output.
1602 *) Added configuration support for Linux/IA64
1603 [Rolf Haberrecker <rolf@suse.de>]
1605 *) Assembler module support for Mingw32.
1608 *) Shared library support for HPUX (in shlib/).
1609 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE> and Anonymous]
1611 *) Shared library support for Solaris gcc.
1612 [Lutz Behnke <behnke@trustcenter.de>]
1614 Changes between 0.9.4 and 0.9.5 [28 Feb 2000]
1616 *) PKCS7_encrypt() was adding text MIME headers twice because they
1617 were added manually and by SMIME_crlf_copy().
1620 *) In bntest.c don't call BN_rand with zero bits argument.
1621 [Steve Henson, pointed out by Andrew W. Gray <agray@iconsinc.com>]
1623 *) BN_mul bugfix: In bn_mul_part_recursion() only the a>a[n] && b>b[n]
1624 case was implemented. This caused BN_div_recp() to fail occasionally.
1627 *) Add an optional second argument to the set_label() in the perl
1628 assembly language builder. If this argument exists and is set
1629 to 1 it signals that the assembler should use a symbol whose
1630 scope is the entire file, not just the current function. This
1631 is needed with MASM which uses the format label:: for this scope.
1632 [Steve Henson, pointed out by Peter Runestig <peter@runestig.com>]
1634 *) Change the ASN1 types so they are typedefs by default. Before
1635 almost all types were #define'd to ASN1_STRING which was causing
1636 STACK_OF() problems: you couldn't declare STACK_OF(ASN1_UTF8STRING)
1640 *) Change names of new functions to the new get1/get0 naming
1641 convention: After 'get1', the caller owns a reference count
1642 and has to call ..._free; 'get0' returns a pointer to some
1643 data structure without incrementing reference counters.
1644 (Some of the existing 'get' functions increment a reference
1645 counter, some don't.)
1646 Similarly, 'set1' and 'add1' functions increase reference
1647 counters or duplicate objects.
1650 *) Allow for the possibility of temp RSA key generation failure:
1651 the code used to assume it always worked and crashed on failure.
1654 *) Fix potential buffer overrun problem in BIO_printf().
1655 [Ulf Möller, using public domain code by Patrick Powell; problem
1656 pointed out by David Sacerdote <das33@cornell.edu>]
1658 *) Support EGD <http://www.lothar.com/tech/crypto/>. New functions
1659 RAND_egd() and RAND_status(). In the command line application,
1660 the EGD socket can be specified like a seed file using RANDFILE
1664 *) Allow the string CERTIFICATE to be tolerated in PKCS#7 structures.
1665 Some CAs (e.g. Verisign) distribute certificates in this form.
1668 *) Remove the SSL_ALLOW_ADH compile option and set the default cipher
1669 list to exclude them. This means that no special compilation option
1670 is needed to use anonymous DH: it just needs to be included in the
1674 *) Change the EVP_MD_CTX_type macro so its meaning consistent with
1675 EVP_MD_type. The old functionality is available in a new macro called
1676 EVP_MD_md(). Change code that uses it and update docs.
1679 *) ..._ctrl functions now have corresponding ..._callback_ctrl functions
1680 where the 'void *' argument is replaced by a function pointer argument.
1681 Previously 'void *' was abused to point to functions, which works on
1682 many platforms, but is not correct. As these functions are usually
1683 called by macros defined in OpenSSL header files, most source code
1684 should work without changes.
1687 *) <openssl/opensslconf.h> (which is created by Configure) now contains
1688 sections with information on -D... compiler switches used for
1689 compiling the library so that applications can see them. To enable
1690 one of these sections, a pre-processor symbol OPENSSL_..._DEFINES
1691 must be defined. E.g.,
1692 #define OPENSSL_ALGORITHM_DEFINES
1693 #include <openssl/opensslconf.h>
1694 defines all pertinent NO_<algo> symbols, such as NO_IDEA, NO_RSA, etc.
1695 [Richard Levitte, Ulf and Bodo Möller]
1697 *) Bugfix: Tolerate fragmentation and interleaving in the SSL 3/TLS
1701 *) Change the 'other' type in certificate aux info to a STACK_OF
1702 X509_ALGOR. Although not an AlgorithmIdentifier as such it has
1703 the required ASN1 format: arbitrary types determined by an OID.
1706 *) Add some PEM_write_X509_REQ_NEW() functions and a command line
1707 argument to 'req'. This is not because the function is newer or
1708 better than others it just uses the work 'NEW' in the certificate
1709 request header lines. Some software needs this.
1712 *) Reorganise password command line arguments: now passwords can be
1713 obtained from various sources. Delete the PEM_cb function and make
1714 it the default behaviour: i.e. if the callback is NULL and the
1715 usrdata argument is not NULL interpret it as a null terminated pass
1716 phrase. If usrdata and the callback are NULL then the pass phrase
1717 is prompted for as usual.
1720 *) Add support for the Compaq Atalla crypto accelerator. If it is installed,
1721 the support is automatically enabled. The resulting binaries will
1722 autodetect the card and use it if present.
1723 [Ben Laurie and Compaq Inc.]
1725 *) Work around for Netscape hang bug. This sends certificate request
1726 and server done in one record. Since this is perfectly legal in the
1727 SSL/TLS protocol it isn't a "bug" option and is on by default. See
1728 the bugs/SSLv3 entry for more info.
1731 *) HP-UX tune-up: new unified configs, HP C compiler bug workaround.
1734 *) Add -rand argument to smime and pkcs12 applications and read/write
1738 *) New 'passwd' tool for crypt(3) and apr1 password hashes.
1741 *) Add command line password options to the remaining applications.
1744 *) Bug fix for BN_div_recp() for numerators with an even number of
1748 *) More tests in bntest.c, and changed test_bn output.
1751 *) ./config recognizes MacOS X now.
1754 *) Bug fix for BN_div() when the first words of num and divsor are
1755 equal (it gave wrong results if (rem=(n1-q*d0)&BN_MASK2) < d0).
1758 *) Add support for various broken PKCS#8 formats, and command line
1759 options to produce them.
1762 *) New functions BN_CTX_start(), BN_CTX_get() and BT_CTX_end() to
1763 get temporary BIGNUMs from a BN_CTX.
1766 *) Correct return values in BN_mod_exp_mont() and BN_mod_exp2_mont()
1770 *) Change the SSLeay_add_all_*() functions to OpenSSL_add_all_*() and
1771 include a #define from the old name to the new. The original intent
1772 was that statically linked binaries could for example just call
1773 SSLeay_add_all_ciphers() to just add ciphers to the table and not
1774 link with digests. This never worked becayse SSLeay_add_all_digests()
1775 and SSLeay_add_all_ciphers() were in the same source file so calling
1776 one would link with the other. They are now in separate source files.
1779 *) Add a new -notext option to 'ca' and a -pubkey option to 'spkac'.
1782 *) Use a less unusual form of the Miller-Rabin primality test (it used
1783 a binary algorithm for exponentiation integrated into the Miller-Rabin
1784 loop, our standard modexp algorithms are faster).
1787 *) Support for the EBCDIC character set completed.
1788 [Martin Kraemer <Martin.Kraemer@Mch.SNI.De>]
1790 *) Source code cleanups: use const where appropriate, eliminate casts,
1791 use void * instead of char * in lhash.
1794 *) Bugfix: ssl3_send_server_key_exchange was not restartable
1795 (the state was not changed to SSL3_ST_SW_KEY_EXCH_B, and because of
1796 this the server could overwrite ephemeral keys that the client
1800 *) Turn DSA_is_prime into a macro that calls BN_is_prime,
1801 using 50 iterations of the Rabin-Miller test.
1803 DSA_generate_parameters now uses BN_is_prime_fasttest (with 50
1804 iterations of the Rabin-Miller test as required by the appendix
1805 to FIPS PUB 186[-1]) instead of DSA_is_prime.
1806 As BN_is_prime_fasttest includes trial division, DSA parameter
1807 generation becomes much faster.
1809 This implies a change for the callback functions in DSA_is_prime
1810 and DSA_generate_parameters: The callback function is called once
1811 for each positive witness in the Rabin-Miller test, not just
1812 occasionally in the inner loop; and the parameters to the
1813 callback function now provide an iteration count for the outer
1814 loop rather than for the current invocation of the inner loop.
1815 DSA_generate_parameters additionally can call the callback
1816 function with an 'iteration count' of -1, meaning that a
1817 candidate has passed the trial division test (when q is generated
1818 from an application-provided seed, trial division is skipped).
1821 *) New function BN_is_prime_fasttest that optionally does trial
1822 division before starting the Rabin-Miller test and has
1823 an additional BN_CTX * argument (whereas BN_is_prime always
1824 has to allocate at least one BN_CTX).
1825 'callback(1, -1, cb_arg)' is called when a number has passed the
1826 trial division stage.
1829 *) Fix for bug in CRL encoding. The validity dates weren't being handled
1833 *) New -pkcs12 option to CA.pl script to write out a PKCS#12 file.
1836 *) New function BN_pseudo_rand().
1839 *) Clean up BN_mod_mul_montgomery(): replace the broken (and unreadable)
1840 bignum version of BN_from_montgomery() with the working code from
1841 SSLeay 0.9.0 (the word based version is faster anyway), and clean up
1845 *) Avoid a race condition in s2_clnt.c (function get_server_hello) that
1846 made it impossible to use the same SSL_SESSION data structure in
1847 SSL2 clients in multiple threads.
1850 *) The return value of RAND_load_file() no longer counts bytes obtained
1851 by stat(). RAND_load_file(..., -1) is new and uses the complete file
1852 to seed the PRNG (previously an explicit byte count was required).
1853 [Ulf Möller, Bodo Möller]
1855 *) Clean up CRYPTO_EX_DATA functions, some of these didn't have prototypes
1856 used (char *) instead of (void *) and had casts all over the place.
1859 *) Make BN_generate_prime() return NULL on error if ret!=NULL.
1862 *) Retain source code compatibility for BN_prime_checks macro:
1863 BN_is_prime(..., BN_prime_checks, ...) now uses
1864 BN_prime_checks_for_size to determine the appropriate number of
1865 Rabin-Miller iterations.
1868 *) Diffie-Hellman uses "safe" primes: DH_check() return code renamed to
1869 DH_CHECK_P_NOT_SAFE_PRIME.
1870 (Check if this is true? OpenPGP calls them "strong".)
1873 *) Merge the functionality of "dh" and "gendh" programs into a new program
1874 "dhparam". The old programs are retained for now but will handle DH keys
1875 (instead of parameters) in future.
1878 *) Make the ciphers, s_server and s_client programs check the return values
1879 when a new cipher list is set.
1882 *) Enhance the SSL/TLS cipher mechanism to correctly handle the TLS 56bit
1883 ciphers. Before when the 56bit ciphers were enabled the sorting was
1886 The syntax for the cipher sorting has been extended to support sorting by
1887 cipher-strength (using the strength_bits hard coded in the tables).
1888 The new command is "@STRENGTH" (see also doc/apps/ciphers.pod).
1890 Fix a bug in the cipher-command parser: when supplying a cipher command
1891 string with an "undefined" symbol (neither command nor alphanumeric
1892 [A-Za-z0-9], ssl_set_cipher_list used to hang in an endless loop. Now
1893 an error is flagged.
1895 Due to the strength-sorting extension, the code of the
1896 ssl_create_cipher_list() function was completely rearranged. I hope that
1897 the readability was also increased :-)
1898 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
1900 *) Minor change to 'x509' utility. The -CAcreateserial option now uses 1
1901 for the first serial number and places 2 in the serial number file. This
1902 avoids problems when the root CA is created with serial number zero and
1903 the first user certificate has the same issuer name and serial number
1907 *) Fixes to X509_ATTRIBUTE utilities, change the 'req' program so it uses
1908 the new code. Add documentation for this stuff.
1911 *) Changes to X509_ATTRIBUTE utilities. These have been renamed from
1912 X509_*() to X509at_*() on the grounds that they don't handle X509
1913 structures and behave in an analagous way to the X509v3 functions:
1914 they shouldn't be called directly but wrapper functions should be used
1917 So we also now have some wrapper functions that call the X509at functions
1918 when passed certificate requests. (TO DO: similar things can be done with
1919 PKCS#7 signed and unsigned attributes, PKCS#12 attributes and a few other
1920 things. Some of these need some d2i or i2d and print functionality
1921 because they handle more complex structures.)
1924 *) Add missing #ifndefs that caused missing symbols when building libssl
1925 as a shared library without RSA. Use #ifndef NO_SSL2 instead of
1926 NO_RSA in ssl/s2*.c.
1927 [Kris Kennaway <kris@hub.freebsd.org>, modified by Ulf Möller]
1929 *) Precautions against using the PRNG uninitialized: RAND_bytes() now
1930 has a return value which indicates the quality of the random data
1931 (1 = ok, 0 = not seeded). Also an error is recorded on the thread's
1932 error queue. New function RAND_pseudo_bytes() generates output that is
1933 guaranteed to be unique but not unpredictable. RAND_add is like
1934 RAND_seed, but takes an extra argument for an entropy estimate
1935 (RAND_seed always assumes full entropy).
1938 *) Do more iterations of Rabin-Miller probable prime test (specifically,
1939 3 for 1024-bit primes, 6 for 512-bit primes, 12 for 256-bit primes
1940 instead of only 2 for all lengths; see BN_prime_checks_for_size definition
1941 in crypto/bn/bn_prime.c for the complete table). This guarantees a
1942 false-positive rate of at most 2^-80 for random input.
1945 *) Rewrite ssl3_read_n (ssl/s3_pkt.c) avoiding a couple of bugs.
1948 *) New function X509_CTX_rget_chain() (renamed to X509_CTX_get1_chain
1949 in the 0.9.5 release), this returns the chain
1950 from an X509_CTX structure with a dup of the stack and all
1951 the X509 reference counts upped: so the stack will exist
1952 after X509_CTX_cleanup() has been called. Modify pkcs12.c
1955 Also make SSL_SESSION_print() print out the verify return
1959 *) Add manpage for the pkcs12 command. Also change the default
1960 behaviour so MAC iteration counts are used unless the new
1961 -nomaciter option is used. This improves file security and
1962 only older versions of MSIE (4.0 for example) need it.
1965 *) Honor the no-xxx Configure options when creating .DEF files.
1968 *) Add PKCS#10 attributes to field table: challengePassword,
1969 unstructuredName and unstructuredAddress. These are taken from
1970 draft PKCS#9 v2.0 but are compatible with v1.2 provided no
1971 international characters are used.
1973 More changes to X509_ATTRIBUTE code: allow the setting of types
1974 based on strings. Remove the 'loc' parameter when adding
1975 attributes because these will be a SET OF encoding which is sorted
1979 *) Initial changes to the 'req' utility to allow request generation
1980 automation. This will allow an application to just generate a template
1981 file containing all the field values and have req construct the
1984 Initial support for X509_ATTRIBUTE handling. Stacks of these are
1985 used all over the place including certificate requests and PKCS#7
1986 structures. They are currently handled manually where necessary with
1987 some primitive wrappers for PKCS#7. The new functions behave in a
1988 manner analogous to the X509 extension functions: they allow
1989 attributes to be looked up by NID and added.
1991 Later something similar to the X509V3 code would be desirable to
1992 automatically handle the encoding, decoding and printing of the
1993 more complex types. The string types like challengePassword can
1994 be handled by the string table functions.
1996 Also modified the multi byte string table handling. Now there is
1997 a 'global mask' which masks out certain types. The table itself
1998 can use the flag STABLE_NO_MASK to ignore the mask setting: this
1999 is useful when for example there is only one permissible type
2000 (as in countryName) and using the mask might result in no valid
2004 *) Clean up 'Finished' handling, and add functions SSL_get_finished and
2005 SSL_get_peer_finished to allow applications to obtain the latest
2006 Finished messages sent to the peer or expected from the peer,
2007 respectively. (SSL_get_peer_finished is usually the Finished message
2008 actually received from the peer, otherwise the protocol will be aborted.)
2010 As the Finished message are message digests of the complete handshake
2011 (with a total of 192 bits for TLS 1.0 and more for SSL 3.0), they can
2012 be used for external authentication procedures when the authentication
2013 provided by SSL/TLS is not desired or is not enough.
2016 *) Enhanced support for Alpha Linux is added. Now ./config checks if
2017 the host supports BWX extension and if Compaq C is present on the
2018 $PATH. Just exploiting of the BWX extension results in 20-30%
2019 performance kick for some algorithms, e.g. DES and RC4 to mention
2020 a couple. Compaq C in turn generates ~20% faster code for MD5 and
2024 *) Add support for MS "fast SGC". This is arguably a violation of the
2025 SSL3/TLS protocol. Netscape SGC does two handshakes: the first with
2026 weak crypto and after checking the certificate is SGC a second one
2027 with strong crypto. MS SGC stops the first handshake after receiving
2028 the server certificate message and sends a second client hello. Since
2029 a server will typically do all the time consuming operations before
2030 expecting any further messages from the client (server key exchange
2031 is the most expensive) there is little difference between the two.
2033 To get OpenSSL to support MS SGC we have to permit a second client
2034 hello message after we have sent server done. In addition we have to
2035 reset the MAC if we do get this second client hello.
2038 *) Add a function 'd2i_AutoPrivateKey()' this will automatically decide
2039 if a DER encoded private key is RSA or DSA traditional format. Changed
2040 d2i_PrivateKey_bio() to use it. This is only needed for the "traditional"
2041 format DER encoded private key. Newer code should use PKCS#8 format which
2042 has the key type encoded in the ASN1 structure. Added DER private key
2043 support to pkcs8 application.
2046 *) SSL 3/TLS 1 servers now don't request certificates when an anonymous
2047 ciphersuites has been selected (as required by the SSL 3/TLS 1
2048 specifications). Exception: When SSL_VERIFY_FAIL_IF_NO_PEER_CERT
2049 is set, we interpret this as a request to violate the specification
2050 (the worst that can happen is a handshake failure, and 'correct'
2051 behaviour would result in a handshake failure anyway).
2054 *) In SSL_CTX_add_session, take into account that there might be multiple
2055 SSL_SESSION structures with the same session ID (e.g. when two threads
2056 concurrently obtain them from an external cache).
2057 The internal cache can handle only one SSL_SESSION with a given ID,
2058 so if there's a conflict, we now throw out the old one to achieve
2062 *) Add OIDs for idea and blowfish in CBC mode. This will allow both
2063 to be used in PKCS#5 v2.0 and S/MIME. Also add checking to
2064 some routines that use cipher OIDs: some ciphers do not have OIDs
2065 defined and so they cannot be used for S/MIME and PKCS#5 v2.0 for
2069 *) Simplify the trust setting structure and code. Now we just have
2070 two sequences of OIDs for trusted and rejected settings. These will
2071 typically have values the same as the extended key usage extension
2072 and any application specific purposes.
2074 The trust checking code now has a default behaviour: it will just
2075 check for an object with the same NID as the passed id. Functions can
2076 be provided to override either the default behaviour or the behaviour
2077 for a given id. SSL client, server and email already have functions
2078 in place for compatibility: they check the NID and also return "trusted"
2079 if the certificate is self signed.
2082 *) Add d2i,i2d bio/fp functions for PrivateKey: these convert the
2083 traditional format into an EVP_PKEY structure.
2086 *) Add a password callback function PEM_cb() which either prompts for
2087 a password if usr_data is NULL or otherwise assumes it is a null
2088 terminated password. Allow passwords to be passed on command line
2089 environment or config files in a few more utilities.
2092 *) Add a bunch of DER and PEM functions to handle PKCS#8 format private
2093 keys. Add some short names for PKCS#8 PBE algorithms and allow them
2094 to be specified on the command line for the pkcs8 and pkcs12 utilities.
2095 Update documentation.
2098 *) Support for ASN1 "NULL" type. This could be handled before by using
2099 ASN1_TYPE but there wasn't any function that would try to read a NULL
2100 and produce an error if it couldn't. For compatibility we also have
2101 ASN1_NULL_new() and ASN1_NULL_free() functions but these are faked and
2102 don't allocate anything because they don't need to.
2105 *) Initial support for MacOS is now provided. Examine INSTALL.MacOS
2107 [Andy Polyakov, Roy Woods <roy@centicsystems.ca>]
2109 *) Rebuild of the memory allocation routines used by OpenSSL code and
2110 possibly others as well. The purpose is to make an interface that
2111 provide hooks so anyone can build a separate set of allocation and
2112 deallocation routines to be used by OpenSSL, for example memory
2113 pool implementations, or something else, which was previously hard
2114 since Malloc(), Realloc() and Free() were defined as macros having
2115 the values malloc, realloc and free, respectively (except for Win32
2116 compilations). The same is provided for memory debugging code.
2117 OpenSSL already comes with functionality to find memory leaks, but
2118 this gives people a chance to debug other memory problems.
2120 With these changes, a new set of functions and macros have appeared:
2122 CRYPTO_set_mem_debug_functions() [F]
2123 CRYPTO_get_mem_debug_functions() [F]
2124 CRYPTO_dbg_set_options() [F]
2125 CRYPTO_dbg_get_options() [F]
2126 CRYPTO_malloc_debug_init() [M]
2128 The memory debug functions are NULL by default, unless the library
2129 is compiled with CRYPTO_MDEBUG or friends is defined. If someone
2130 wants to debug memory anyway, CRYPTO_malloc_debug_init() (which
2131 gives the standard debugging functions that come with OpenSSL) or
2132 CRYPTO_set_mem_debug_functions() (tells OpenSSL to use functions
2133 provided by the library user) must be used. When the standard
2134 debugging functions are used, CRYPTO_dbg_set_options can be used to
2135 request additional information:
2136 CRYPTO_dbg_set_options(V_CYRPTO_MDEBUG_xxx) corresponds to setting
2137 the CRYPTO_MDEBUG_xxx macro when compiling the library.
2139 Also, things like CRYPTO_set_mem_functions will always give the
2140 expected result (the new set of functions is used for allocation
2141 and deallocation) at all times, regardless of platform and compiler
2144 To finish it up, some functions that were never use in any other
2145 way than through macros have a new API and new semantic:
2148 CRYPTO_dbg_realloc()
2151 All macros of value have retained their old syntax.
2152 [Richard Levitte and Bodo Moeller]
2154 *) Some S/MIME fixes. The OID for SMIMECapabilities was wrong, the
2155 ordering of SMIMECapabilities wasn't in "strength order" and there
2156 was a missing NULL in the AlgorithmIdentifier for the SHA1 signature
2160 *) Some ASN1 types with illegal zero length encoding (INTEGER,
2161 ENUMERATED and OBJECT IDENTIFIER) choked the ASN1 routines.
2162 [Frans Heymans <fheymans@isaserver.be>, modified by Steve Henson]
2164 *) Merge in my S/MIME library for OpenSSL. This provides a simple
2165 S/MIME API on top of the PKCS#7 code, a MIME parser (with enough
2166 functionality to handle multipart/signed properly) and a utility
2167 called 'smime' to call all this stuff. This is based on code I
2168 originally wrote for Celo who have kindly allowed it to be
2169 included in OpenSSL.
2172 *) Add variants des_set_key_checked and des_set_key_unchecked of
2173 des_set_key (aka des_key_sched). Global variable des_check_key
2174 decides which of these is called by des_set_key; this way
2175 des_check_key behaves as it always did, but applications and
2176 the library itself, which was buggy for des_check_key == 1,
2177 have a cleaner way to pick the version they need.
2180 *) New function PKCS12_newpass() which changes the password of a
2184 *) Modify X509_TRUST and X509_PURPOSE so it also uses a static and
2185 dynamic mix. In both cases the ids can be used as an index into the
2186 table. Also modified the X509_TRUST_add() and X509_PURPOSE_add()
2187 functions so they accept a list of the field values and the
2188 application doesn't need to directly manipulate the X509_TRUST
2192 *) Modify the ASN1_STRING_TABLE stuff so it also uses bsearch and doesn't
2196 *) Modify the way the V3 extension code looks up extensions. This now
2197 works in a similar way to the object code: we have some "standard"
2198 extensions in a static table which is searched with OBJ_bsearch()
2199 and the application can add dynamic ones if needed. The file
2200 crypto/x509v3/ext_dat.h now has the info: this file needs to be
2201 updated whenever a new extension is added to the core code and kept
2202 in ext_nid order. There is a simple program 'tabtest.c' which checks
2203 this. New extensions are not added too often so this file can readily
2204 be maintained manually.
2206 There are two big advantages in doing things this way. The extensions
2207 can be looked up immediately and no longer need to be "added" using
2208 X509V3_add_standard_extensions(): this function now does nothing.
2209 [Side note: I get *lots* of email saying the extension code doesn't
2210 work because people forget to call this function]
2211 Also no dynamic allocation is done unless new extensions are added:
2212 so if we don't add custom extensions there is no need to call
2213 X509V3_EXT_cleanup().
2216 *) Modify enc utility's salting as follows: make salting the default. Add a
2217 magic header, so unsalted files fail gracefully instead of just decrypting
2218 to garbage. This is because not salting is a big security hole, so people
2219 should be discouraged from doing it.
2222 *) Fixes and enhancements to the 'x509' utility. It allowed a message
2223 digest to be passed on the command line but it only used this
2224 parameter when signing a certificate. Modified so all relevant
2225 operations are affected by the digest parameter including the
2226 -fingerprint and -x509toreq options. Also -x509toreq choked if a
2227 DSA key was used because it didn't fix the digest.
2230 *) Initial certificate chain verify code. Currently tests the untrusted
2231 certificates for consistency with the verify purpose (which is set
2232 when the X509_STORE_CTX structure is set up) and checks the pathlength.
2234 There is a NO_CHAIN_VERIFY compilation option to keep the old behaviour:
2235 this is because it will reject chains with invalid extensions whereas
2236 every previous version of OpenSSL and SSLeay made no checks at all.
2238 Trust code: checks the root CA for the relevant trust settings. Trust
2239 settings have an initial value consistent with the verify purpose: e.g.
2240 if the verify purpose is for SSL client use it expects the CA to be
2241 trusted for SSL client use. However the default value can be changed to
2242 permit custom trust settings: one example of this would be to only trust
2243 certificates from a specific "secure" set of CAs.
2245 Also added X509_STORE_CTX_new() and X509_STORE_CTX_free() functions
2246 which should be used for version portability: especially since the
2247 verify structure is likely to change more often now.
2249 SSL integration. Add purpose and trust to SSL_CTX and SSL and functions
2250 to set them. If not set then assume SSL clients will verify SSL servers
2253 Two new options to the verify program: -untrusted allows a set of
2254 untrusted certificates to be passed in and -purpose which sets the
2255 intended purpose of the certificate. If a purpose is set then the
2256 new chain verify code is used to check extension consistency.
2259 *) Support for the authority information access extension.
2262 *) Modify RSA and DSA PEM read routines to transparently handle
2263 PKCS#8 format private keys. New *_PUBKEY_* functions that handle
2264 public keys in a format compatible with certificate
2265 SubjectPublicKeyInfo structures. Unfortunately there were already
2266 functions called *_PublicKey_* which used various odd formats so
2267 these are retained for compatibility: however the DSA variants were
2268 never in a public release so they have been deleted. Changed dsa/rsa
2269 utilities to handle the new format: note no releases ever handled public
2270 keys so we should be OK.
2272 The primary motivation for this change is to avoid the same fiasco
2273 that dogs private keys: there are several incompatible private key
2274 formats some of which are standard and some OpenSSL specific and
2275 require various evil hacks to allow partial transparent handling and
2276 even then it doesn't work with DER formats. Given the option anything
2277 other than PKCS#8 should be dumped: but the other formats have to
2278 stay in the name of compatibility.
2280 With public keys and the benefit of hindsight one standard format
2281 is used which works with EVP_PKEY, RSA or DSA structures: though
2282 it clearly returns an error if you try to read the wrong kind of key.
2284 Added a -pubkey option to the 'x509' utility to output the public key.
2285 Also rename the EVP_PKEY_get_*() to EVP_PKEY_rget_*()
2286 (renamed to EVP_PKEY_get1_*() in the OpenSSL 0.9.5 release) and add
2287 EVP_PKEY_rset_*() functions (renamed to EVP_PKEY_set1_*())
2288 that do the same as the EVP_PKEY_assign_*() except they up the
2289 reference count of the added key (they don't "swallow" the
2293 *) Fixes to crypto/x509/by_file.c the code to read in certificates and
2294 CRLs would fail if the file contained no certificates or no CRLs:
2295 added a new function to read in both types and return the number
2296 read: this means that if none are read it will be an error. The
2297 DER versions of the certificate and CRL reader would always fail
2298 because it isn't possible to mix certificates and CRLs in DER format
2299 without choking one or the other routine. Changed this to just read
2300 a certificate: this is the best we can do. Also modified the code
2301 in apps/verify.c to take notice of return codes: it was previously
2302 attempting to read in certificates from NULL pointers and ignoring
2303 any errors: this is one reason why the cert and CRL reader seemed
2304 to work. It doesn't check return codes from the default certificate
2305 routines: these may well fail if the certificates aren't installed.
2308 *) Code to support otherName option in GeneralName.
2311 *) First update to verify code. Change the verify utility
2312 so it warns if it is passed a self signed certificate:
2313 for consistency with the normal behaviour. X509_verify
2314 has been modified to it will now verify a self signed
2315 certificate if *exactly* the same certificate appears
2316 in the store: it was previously impossible to trust a
2317 single self signed certificate. This means that:
2318 openssl verify ss.pem
2319 now gives a warning about a self signed certificate but
2320 openssl verify -CAfile ss.pem ss.pem
2324 *) For servers, store verify_result in SSL_SESSION data structure
2325 (and add it to external session representation).
2326 This is needed when client certificate verifications fails,
2327 but an application-provided verification callback (set by
2328 SSL_CTX_set_cert_verify_callback) allows accepting the session
2329 anyway (i.e. leaves x509_store_ctx->error != X509_V_OK
2330 but returns 1): When the session is reused, we have to set
2331 ssl->verify_result to the appropriate error code to avoid
2333 [Bodo Moeller, problem pointed out by Lutz Jaenicke]
2335 *) Fix a bug in the new PKCS#7 code: it didn't consider the
2336 case in PKCS7_dataInit() where the signed PKCS7 structure
2337 didn't contain any existing data because it was being created.
2338 [Po-Cheng Chen <pocheng@nst.com.tw>, slightly modified by Steve Henson]
2340 *) Add a salt to the key derivation routines in enc.c. This
2341 forms the first 8 bytes of the encrypted file. Also add a
2342 -S option to allow a salt to be input on the command line.
2345 *) New function X509_cmp(). Oddly enough there wasn't a function
2346 to compare two certificates. We do this by working out the SHA1
2347 hash and comparing that. X509_cmp() will be needed by the trust
2351 *) SSL_get1_session() is like SSL_get_session(), but increments
2352 the reference count in the SSL_SESSION returned.
2353 [Geoff Thorpe <geoff@eu.c2.net>]
2355 *) Fix for 'req': it was adding a null to request attributes.
2356 Also change the X509_LOOKUP and X509_INFO code to handle
2357 certificate auxiliary information.
2360 *) Add support for 40 and 64 bit RC2 and RC4 algorithms: document
2364 *) Add the possibility to add extra information to the memory leak
2365 detecting output, to form tracebacks, showing from where each
2366 allocation was originated: CRYPTO_push_info("constant string") adds
2367 the string plus current file name and line number to a per-thread
2368 stack, CRYPTO_pop_info() does the obvious, CRYPTO_remove_all_info()
2369 is like calling CYRPTO_pop_info() until the stack is empty.
2370 Also updated memory leak detection code to be multi-thread-safe.
2373 *) Add options -text and -noout to pkcs7 utility and delete the
2374 encryption options which never did anything. Update docs.
2377 *) Add options to some of the utilities to allow the pass phrase
2378 to be included on either the command line (not recommended on
2379 OSes like Unix) or read from the environment. Update the
2380 manpages and fix a few bugs.
2383 *) Add a few manpages for some of the openssl commands.
2386 *) Fix the -revoke option in ca. It was freeing up memory twice,
2387 leaking and not finding already revoked certificates.
2390 *) Extensive changes to support certificate auxiliary information.
2391 This involves the use of X509_CERT_AUX structure and X509_AUX
2392 functions. An X509_AUX function such as PEM_read_X509_AUX()
2393 can still read in a certificate file in the usual way but it
2394 will also read in any additional "auxiliary information". By
2395 doing things this way a fair degree of compatibility can be
2396 retained: existing certificates can have this information added
2397 using the new 'x509' options.
2399 Current auxiliary information includes an "alias" and some trust
2400 settings. The trust settings will ultimately be used in enhanced
2401 certificate chain verification routines: currently a certificate
2402 can only be trusted if it is self signed and then it is trusted
2406 *) Fix assembler for Alpha (tested only on DEC OSF not Linux or *BSD).
2407 The problem was that one of the replacement routines had not been working
2408 since SSLeay releases. For now the offending routine has been replaced
2409 with non-optimised assembler. Even so, this now gives around 95%
2410 performance improvement for 1024 bit RSA signs.
2413 *) Hack to fix PKCS#7 decryption when used with some unorthodox RC2
2414 handling. Most clients have the effective key size in bits equal to
2415 the key length in bits: so a 40 bit RC2 key uses a 40 bit (5 byte) key.
2416 A few however don't do this and instead use the size of the decrypted key
2417 to determine the RC2 key length and the AlgorithmIdentifier to determine
2418 the effective key length. In this case the effective key length can still
2419 be 40 bits but the key length can be 168 bits for example. This is fixed
2420 by manually forcing an RC2 key into the EVP_PKEY structure because the
2421 EVP code can't currently handle unusual RC2 key sizes: it always assumes
2422 the key length and effective key length are equal.
2425 *) Add a bunch of functions that should simplify the creation of
2426 X509_NAME structures. Now you should be able to do:
2427 X509_NAME_add_entry_by_txt(nm, "CN", MBSTRING_ASC, "Steve", -1, -1, 0);
2428 and have it automatically work out the correct field type and fill in
2429 the structures. The more adventurous can try:
2430 X509_NAME_add_entry_by_txt(nm, field, MBSTRING_UTF8, str, -1, -1, 0);
2431 and it will (hopefully) work out the correct multibyte encoding.
2434 *) Change the 'req' utility to use the new field handling and multibyte
2435 copy routines. Before the DN field creation was handled in an ad hoc
2436 way in req, ca, and x509 which was rather broken and didn't support
2437 BMPStrings or UTF8Strings. Since some software doesn't implement
2438 BMPStrings or UTF8Strings yet, they can be enabled using the config file
2439 using the dirstring_type option. See the new comment in the default
2440 openssl.cnf for more info.
2443 *) Make crypto/rand/md_rand.c more robust:
2444 - Assure unique random numbers after fork().
2445 - Make sure that concurrent threads access the global counter and
2446 md serializably so that we never lose entropy in them
2447 or use exactly the same state in multiple threads.
2448 Access to the large state is not always serializable because
2449 the additional locking could be a performance killer, and
2450 md should be large enough anyway.
2453 *) New file apps/app_rand.c with commonly needed functionality
2454 for handling the random seed file.
2456 Use the random seed file in some applications that previously did not:
2458 dsaparam -genkey (which also ignored its '-rand' option),
2461 x509 (when signing).
2462 Except on systems with /dev/urandom, it is crucial to have a random
2463 seed file at least for key creation, DSA signing, and for DH exchanges;
2464 for RSA signatures we could do without one.
2466 gendh and gendsa (unlike genrsa) used to read only the first byte
2467 of each file listed in the '-rand' option. The function as previously
2468 found in genrsa is now in app_rand.c and is used by all programs
2469 that support '-rand'.
2472 *) In RAND_write_file, use mode 0600 for creating files;
2473 don't just chmod when it may be too late.
2476 *) Report an error from X509_STORE_load_locations
2477 when X509_LOOKUP_load_file or X509_LOOKUP_add_dir failed.
2480 *) New function ASN1_mbstring_copy() this copies a string in either
2481 ASCII, Unicode, Universal (4 bytes per character) or UTF8 format
2482 into an ASN1_STRING type. A mask of permissible types is passed
2483 and it chooses the "minimal" type to use or an error if not type
2487 *) Add function equivalents to the various macros in asn1.h. The old
2488 macros are retained with an M_ prefix. Code inside the library can
2489 use the M_ macros. External code (including the openssl utility)
2490 should *NOT* in order to be "shared library friendly".
2493 *) Add various functions that can check a certificate's extensions
2494 to see if it usable for various purposes such as SSL client,
2495 server or S/MIME and CAs of these types. This is currently
2496 VERY EXPERIMENTAL but will ultimately be used for certificate chain
2497 verification. Also added a -purpose flag to x509 utility to
2498 print out all the purposes.
2501 *) Add a CRYPTO_EX_DATA to X509 certificate structure and associated
2505 *) New X509V3_{X509,CRL,REVOKED}_get_d2i() functions. These will search
2506 for, obtain and decode and extension and obtain its critical flag.
2507 This allows all the necessary extension code to be handled in a
2508 single function call.
2511 *) RC4 tune-up featuring 30-40% performance improvement on most RISC
2512 platforms. See crypto/rc4/rc4_enc.c for further details.
2515 *) New -noout option to asn1parse. This causes no output to be produced
2516 its main use is when combined with -strparse and -out to extract data
2517 from a file (which may not be in ASN.1 format).
2520 *) Fix for pkcs12 program. It was hashing an invalid certificate pointer
2521 when producing the local key id.
2522 [Richard Levitte <levitte@stacken.kth.se>]
2524 *) New option -dhparam in s_server. This allows a DH parameter file to be
2525 stated explicitly. If it is not stated then it tries the first server
2526 certificate file. The previous behaviour hard coded the filename
2530 *) Add -pubin and -pubout options to the rsa and dsa commands. These allow
2531 a public key to be input or output. For example:
2532 openssl rsa -in key.pem -pubout -out pubkey.pem
2533 Also added necessary DSA public key functions to handle this.
2536 *) Fix so PKCS7_dataVerify() doesn't crash if no certificates are contained
2537 in the message. This was handled by allowing
2538 X509_find_by_issuer_and_serial() to tolerate a NULL passed to it.
2539 [Steve Henson, reported by Sampo Kellomaki <sampo@mail.neuronio.pt>]
2541 *) Fix for bug in d2i_ASN1_bytes(): other ASN1 functions add an extra null
2542 to the end of the strings whereas this didn't. This would cause problems
2543 if strings read with d2i_ASN1_bytes() were later modified.
2544 [Steve Henson, reported by Arne Ansper <arne@ats.cyber.ee>]
2546 *) Fix for base64 decode bug. When a base64 bio reads only one line of
2547 data and it contains EOF it will end up returning an error. This is
2548 caused by input 46 bytes long. The cause is due to the way base64
2549 BIOs find the start of base64 encoded data. They do this by trying a
2550 trial decode on each line until they find one that works. When they
2551 do a flag is set and it starts again knowing it can pass all the
2552 data directly through the decoder. Unfortunately it doesn't reset
2553 the context it uses. This means that if EOF is reached an attempt
2554 is made to pass two EOFs through the context and this causes the
2555 resulting error. This can also cause other problems as well. As is
2556 usual with these problems it takes *ages* to find and the fix is
2557 trivial: move one line.
2558 [Steve Henson, reported by ian@uns.ns.ac.yu (Ivan Nejgebauer) ]
2560 *) Ugly workaround to get s_client and s_server working under Windows. The
2561 old code wouldn't work because it needed to select() on sockets and the
2562 tty (for keypresses and to see if data could be written). Win32 only
2563 supports select() on sockets so we select() with a 1s timeout on the
2564 sockets and then see if any characters are waiting to be read, if none
2565 are present then we retry, we also assume we can always write data to
2566 the tty. This isn't nice because the code then blocks until we've
2567 received a complete line of data and it is effectively polling the
2568 keyboard at 1s intervals: however it's quite a bit better than not
2569 working at all :-) A dedicated Windows application might handle this
2570 with an event loop for example.
2573 *) Enhance RSA_METHOD structure. Now there are two extra methods, rsa_sign
2574 and rsa_verify. When the RSA_FLAGS_SIGN_VER option is set these functions
2575 will be called when RSA_sign() and RSA_verify() are used. This is useful
2576 if rsa_pub_dec() and rsa_priv_enc() equivalents are not available.
2577 For this to work properly RSA_public_decrypt() and RSA_private_encrypt()
2578 should *not* be used: RSA_sign() and RSA_verify() must be used instead.
2579 This necessitated the support of an extra signature type NID_md5_sha1
2580 for SSL signatures and modifications to the SSL library to use it instead
2581 of calling RSA_public_decrypt() and RSA_private_encrypt().
2584 *) Add new -verify -CAfile and -CApath options to the crl program, these
2585 will lookup a CRL issuers certificate and verify the signature in a
2586 similar way to the verify program. Tidy up the crl program so it
2587 no longer accesses structures directly. Make the ASN1 CRL parsing a bit
2588 less strict. It will now permit CRL extensions even if it is not
2589 a V2 CRL: this will allow it to tolerate some broken CRLs.
2592 *) Initialize all non-automatic variables each time one of the openssl
2593 sub-programs is started (this is necessary as they may be started
2594 multiple times from the "OpenSSL>" prompt).
2595 [Lennart Bang, Bodo Moeller]
2597 *) Preliminary compilation option RSA_NULL which disables RSA crypto without
2598 removing all other RSA functionality (this is what NO_RSA does). This
2599 is so (for example) those in the US can disable those operations covered
2600 by the RSA patent while allowing storage and parsing of RSA keys and RSA
2604 *) Non-copying interface to BIO pairs.
2605 (still largely untested)
2608 *) New function ANS1_tag2str() to convert an ASN1 tag to a descriptive
2609 ASCII string. This was handled independently in various places before.
2612 *) New functions UTF8_getc() and UTF8_putc() that parse and generate
2613 UTF8 strings a character at a time.
2616 *) Use client_version from client hello to select the protocol
2617 (s23_srvr.c) and for RSA client key exchange verification
2618 (s3_srvr.c), as required by the SSL 3.0/TLS 1.0 specifications.
2621 *) Add various utility functions to handle SPKACs, these were previously
2622 handled by poking round in the structure internals. Added new function
2623 NETSCAPE_SPKI_print() to print out SPKAC and a new utility 'spkac' to
2624 print, verify and generate SPKACs. Based on an original idea from
2625 Massimiliano Pala <madwolf@comune.modena.it> but extensively modified.
2628 *) RIPEMD160 is operational on all platforms and is back in 'make test'.
2631 *) Allow the config file extension section to be overwritten on the
2632 command line. Based on an original idea from Massimiliano Pala
2633 <madwolf@comune.modena.it>. The new option is called -extensions
2634 and can be applied to ca, req and x509. Also -reqexts to override
2635 the request extensions in req and -crlexts to override the crl extensions
2639 *) Add new feature to the SPKAC handling in ca. Now you can include
2640 the same field multiple times by preceding it by "XXXX." for example:
2643 this is the same syntax as used in the req config file.
2646 *) Allow certificate extensions to be added to certificate requests. These
2647 are specified in a 'req_extensions' option of the req section of the
2648 config file. They can be printed out with the -text option to req but
2649 are otherwise ignored at present.
2652 *) Fix a horrible bug in enc_read() in crypto/evp/bio_enc.c: if the first
2653 data read consists of only the final block it would not decrypted because
2654 EVP_CipherUpdate() would correctly report zero bytes had been decrypted.
2655 A misplaced 'break' also meant the decrypted final block might not be
2656 copied until the next read.
2659 *) Initial support for DH_METHOD. Again based on RSA_METHOD. Also added
2660 a few extra parameters to the DH structure: these will be useful if
2661 for example we want the value of 'q' or implement X9.42 DH.
2664 *) Initial support for DSA_METHOD. This is based on the RSA_METHOD and
2665 provides hooks that allow the default DSA functions or functions on a
2666 "per key" basis to be replaced. This allows hardware acceleration and
2667 hardware key storage to be handled without major modification to the
2668 library. Also added low level modexp hooks and CRYPTO_EX structure and
2669 associated functions.
2672 *) Add a new flag to memory BIOs, BIO_FLAG_MEM_RDONLY. This marks the BIO
2673 as "read only": it can't be written to and the buffer it points to will
2674 not be freed. Reading from a read only BIO is much more efficient than
2675 a normal memory BIO. This was added because there are several times when
2676 an area of memory needs to be read from a BIO. The previous method was
2677 to create a memory BIO and write the data to it, this results in two
2678 copies of the data and an O(n^2) reading algorithm. There is a new
2679 function BIO_new_mem_buf() which creates a read only memory BIO from
2680 an area of memory. Also modified the PKCS#7 routines to use read only
2684 *) Bugfix: ssl23_get_client_hello did not work properly when called in
2685 state SSL23_ST_SR_CLNT_HELLO_B, i.e. when the first 7 bytes of
2686 a SSLv2-compatible client hello for SSLv3 or TLSv1 could be read,
2687 but a retry condition occured while trying to read the rest.
2690 *) The PKCS7_ENC_CONTENT_new() function was setting the content type as
2691 NID_pkcs7_encrypted by default: this was wrong since this should almost
2692 always be NID_pkcs7_data. Also modified the PKCS7_set_type() to handle
2693 the encrypted data type: this is a more sensible place to put it and it
2694 allows the PKCS#12 code to be tidied up that duplicated this
2698 *) Changed obj_dat.pl script so it takes its input and output files on
2699 the command line. This should avoid shell escape redirection problems
2703 *) Initial support for certificate extension requests, these are included
2704 in things like Xenroll certificate requests. Included functions to allow
2705 extensions to be obtained and added.
2708 *) -crlf option to s_client and s_server for sending newlines as
2709 CRLF (as required by many protocols).
2712 Changes between 0.9.3a and 0.9.4 [09 Aug 1999]
2714 *) Install libRSAglue.a when OpenSSL is built with RSAref.
2715 [Ralf S. Engelschall]
2717 *) A few more ``#ifndef NO_FP_API / #endif'' pairs for consistency.
2718 [Andrija Antonijevic <TheAntony2@bigfoot.com>]
2720 *) Fix -startdate and -enddate (which was missing) arguments to 'ca'
2724 *) New function DSA_dup_DH, which duplicates DSA parameters/keys as
2725 DH parameters/keys (q is lost during that conversion, but the resulting
2726 DH parameters contain its length).
2728 For 1024-bit p, DSA_generate_parameters followed by DSA_dup_DH is
2729 much faster than DH_generate_parameters (which creates parameters
2730 where p = 2*q + 1), and also the smaller q makes DH computations
2731 much more efficient (160-bit exponentiation instead of 1024-bit
2732 exponentiation); so this provides a convenient way to support DHE
2733 ciphersuites in SSL/TLS servers (see ssl/ssltest.c). It is of
2734 utter importance to use
2735 SSL_CTX_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
2737 SSL_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
2738 when such DH parameters are used, because otherwise small subgroup
2739 attacks may become possible!
2742 *) Avoid memory leak in i2d_DHparams.
2745 *) Allow the -k option to be used more than once in the enc program:
2746 this allows the same encrypted message to be read by multiple recipients.
2749 *) New function OBJ_obj2txt(buf, buf_len, a, no_name), this converts
2750 an ASN1_OBJECT to a text string. If the "no_name" parameter is set then
2751 it will always use the numerical form of the OID, even if it has a short
2755 *) Added an extra RSA flag: RSA_FLAG_EXT_PKEY. Previously the rsa_mod_exp
2756 method only got called if p,q,dmp1,dmq1,iqmp components were present,
2757 otherwise bn_mod_exp was called. In the case of hardware keys for example
2758 no private key components need be present and it might store extra data
2759 in the RSA structure, which cannot be accessed from bn_mod_exp.
2760 By setting RSA_FLAG_EXT_PKEY rsa_mod_exp will always be called for
2761 private key operations.
2764 *) Added support for SPARC Linux.
2767 *) pem_password_cb function type incompatibly changed from
2768 typedef int pem_password_cb(char *buf, int size, int rwflag);
2770 ....(char *buf, int size, int rwflag, void *userdata);
2771 so that applications can pass data to their callbacks:
2772 The PEM[_ASN1]_{read,write}... functions and macros now take an
2773 additional void * argument, which is just handed through whenever
2774 the password callback is called.
2775 [Damien Miller <dmiller@ilogic.com.au>; tiny changes by Bodo Moeller]
2777 New function SSL_CTX_set_default_passwd_cb_userdata.
2779 Compatibility note: As many C implementations push function arguments
2780 onto the stack in reverse order, the new library version is likely to
2781 interoperate with programs that have been compiled with the old
2782 pem_password_cb definition (PEM_whatever takes some data that
2783 happens to be on the stack as its last argument, and the callback
2784 just ignores this garbage); but there is no guarantee whatsoever that
2787 *) The -DPLATFORM="\"$(PLATFORM)\"" definition and the similar -DCFLAGS=...
2788 (both in crypto/Makefile.ssl for use by crypto/cversion.c) caused
2789 problems not only on Windows, but also on some Unix platforms.
2790 To avoid problematic command lines, these definitions are now in an
2791 auto-generated file crypto/buildinf.h (created by crypto/Makefile.ssl
2792 for standard "make" builds, by util/mk1mf.pl for "mk1mf" builds).
2795 *) MIPS III/IV assembler module is reimplemented.
2798 *) More DES library cleanups: remove references to srand/rand and
2799 delete an unused file.
2802 *) Add support for the the free Netwide assembler (NASM) under Win32,
2803 since not many people have MASM (ml) and it can be hard to obtain.
2804 This is currently experimental but it seems to work OK and pass all
2805 the tests. Check out INSTALL.W32 for info.
2808 *) Fix memory leaks in s3_clnt.c: All non-anonymous SSL3/TLS1 connections
2809 without temporary keys kept an extra copy of the server key,
2810 and connections with temporary keys did not free everything in case
2814 *) New function RSA_check_key and new openssl rsa option -check
2815 for verifying the consistency of RSA keys.
2816 [Ulf Moeller, Bodo Moeller]
2818 *) Various changes to make Win32 compile work:
2819 1. Casts to avoid "loss of data" warnings in p5_crpt2.c
2820 2. Change unsigned int to int in b_dump.c to avoid "signed/unsigned
2821 comparison" warnings.
2822 3. Add sk_<TYPE>_sort to DEF file generator and do make update.
2825 *) Add a debugging option to PKCS#5 v2 key generation function: when
2826 you #define DEBUG_PKCS5V2 passwords, salts, iteration counts and
2827 derived keys are printed to stderr.
2830 *) Copy the flags in ASN1_STRING_dup().
2831 [Roman E. Pavlov <pre@mo.msk.ru>]
2833 *) The x509 application mishandled signing requests containing DSA
2834 keys when the signing key was also DSA and the parameters didn't match.
2836 It was supposed to omit the parameters when they matched the signing key:
2837 the verifying software was then supposed to automatically use the CA's
2838 parameters if they were absent from the end user certificate.
2840 Omitting parameters is no longer recommended. The test was also
2841 the wrong way round! This was probably due to unusual behaviour in
2842 EVP_cmp_parameters() which returns 1 if the parameters match.
2843 This meant that parameters were omitted when they *didn't* match and
2844 the certificate was useless. Certificates signed with 'ca' didn't have
2846 [Steve Henson, reported by Doug Erickson <Doug.Erickson@Part.NET>]
2848 *) Memory leak checking (-DCRYPTO_MDEBUG) had some problems.
2849 The interface is as follows:
2850 Applications can use
2851 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON) aka MemCheck_start(),
2852 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_OFF) aka MemCheck_stop();
2853 "off" is now the default.
2854 The library internally uses
2855 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_DISABLE) aka MemCheck_off(),
2856 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ENABLE) aka MemCheck_on()
2857 to disable memory-checking temporarily.
2859 Some inconsistent states that previously were possible (and were
2860 even the default) are now avoided.
2862 -DCRYPTO_MDEBUG_TIME is new and additionally stores the current time
2863 with each memory chunk allocated; this is occasionally more helpful
2864 than just having a counter.
2866 -DCRYPTO_MDEBUG_THREAD is also new and adds the thread ID.
2868 -DCRYPTO_MDEBUG_ALL enables all of the above, plus any future
2872 *) Introduce "mode" for SSL structures (with defaults in SSL_CTX),
2873 which largely parallels "options", but is for changing API behaviour,
2874 whereas "options" are about protocol behaviour.
2875 Initial "mode" flags are:
2877 SSL_MODE_ENABLE_PARTIAL_WRITE Allow SSL_write to report success when
2878 a single record has been written.
2879 SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER Don't insist that SSL_write
2880 retries use the same buffer location.
2881 (But all of the contents must be
2885 *) Bugfix: SSL_set_mode ignored its parameter, only SSL_CTX_set_mode
2888 *) Fix problems with no-hmac etc.
2889 [Ulf Möller, pointed out by Brian Wellington <bwelling@tislabs.com>]
2891 *) New functions RSA_get_default_method(), RSA_set_method() and
2892 RSA_get_method(). These allows replacement of RSA_METHODs without having
2893 to mess around with the internals of an RSA structure.
2896 *) Fix memory leaks in DSA_do_sign and DSA_is_prime.
2897 Also really enable memory leak checks in openssl.c and in some
2899 [Chad C. Mulligan, Bodo Moeller]
2901 *) Fix a bug in d2i_ASN1_INTEGER() and i2d_ASN1_INTEGER() which can mess
2902 up the length of negative integers. This has now been simplified to just
2903 store the length when it is first determined and use it later, rather
2904 than trying to keep track of where data is copied and updating it to
2906 [Steve Henson, reported by Brien Wheeler
2907 <bwheeler@authentica-security.com>]
2909 *) Add a new function PKCS7_signatureVerify. This allows the verification
2910 of a PKCS#7 signature but with the signing certificate passed to the
2911 function itself. This contrasts with PKCS7_dataVerify which assumes the
2912 certificate is present in the PKCS#7 structure. This isn't always the
2913 case: certificates can be omitted from a PKCS#7 structure and be
2914 distributed by "out of band" means (such as a certificate database).
2917 *) Complete the PEM_* macros with DECLARE_PEM versions to replace the
2918 function prototypes in pem.h, also change util/mkdef.pl to add the
2919 necessary function names.
2922 *) mk1mf.pl (used by Windows builds) did not properly read the
2923 options set by Configure in the top level Makefile, and Configure
2924 was not even able to write more than one option correctly.
2925 Fixed, now "no-idea no-rc5 -DCRYPTO_MDEBUG" etc. works as intended.
2928 *) New functions CONF_load_bio() and CONF_load_fp() to allow a config
2929 file to be loaded from a BIO or FILE pointer. The BIO version will
2930 for example allow memory BIOs to contain config info.
2933 *) New function "CRYPTO_num_locks" that returns CRYPTO_NUM_LOCKS.
2934 Whoever hopes to achieve shared-library compatibility across versions
2935 must use this, not the compile-time macro.
2936 (Exercise 0.9.4: Which is the minimum library version required by
2938 Note: All this applies only to multi-threaded programs, others don't
2942 *) Add missing case to s3_clnt.c state machine -- one of the new SSL tests
2943 through a BIO pair triggered the default case, i.e.
2944 SSLerr(...,SSL_R_UNKNOWN_STATE).
2947 *) New "BIO pair" concept (crypto/bio/bss_bio.c) so that applications
2948 can use the SSL library even if none of the specific BIOs is
2952 *) Fix a bug in i2d_DSAPublicKey() which meant it returned the wrong value
2953 for the encoded length.
2954 [Jeon KyoungHo <khjeon@sds.samsung.co.kr>]
2956 *) Add initial documentation of the X509V3 functions.
2959 *) Add a new pair of functions PEM_write_PKCS8PrivateKey() and
2960 PEM_write_bio_PKCS8PrivateKey() that are equivalent to
2961 PEM_write_PrivateKey() and PEM_write_bio_PrivateKey() but use the more
2962 secure PKCS#8 private key format with a high iteration count.
2965 *) Fix determination of Perl interpreter: A perl or perl5
2966 _directory_ in $PATH was also accepted as the interpreter.
2967 [Ralf S. Engelschall]
2969 *) Fix demos/sign/sign.c: well there wasn't anything strictly speaking
2970 wrong with it but it was very old and did things like calling
2971 PEM_ASN1_read() directly and used MD5 for the hash not to mention some
2975 *) Fix demos/selfsign.c: it used obsolete and deleted functions, changed
2976 to use the new extension code.
2979 *) Implement the PEM_read/PEM_write functions in crypto/pem/pem_all.c
2980 with macros. This should make it easier to change their form, add extra
2981 arguments etc. Fix a few PEM prototypes which didn't have cipher as a
2985 *) Add to configuration table a new entry that can specify an alternative
2986 name for unistd.h (for pre-POSIX systems); we need this for NeXTstep,
2987 according to Mark Crispin <MRC@Panda.COM>.
2991 *) DES CBC did not update the IV. Weird.
2994 des_cbc_encrypt does not update the IV, but des_ncbc_encrypt does.
2995 Changing the behaviour of the former might break existing programs --
2996 where IV updating is needed, des_ncbc_encrypt can be used.
2999 *) When bntest is run from "make test" it drives bc to check its
3000 calculations, as well as internally checking them. If an internal check
3001 fails, it needs to cause bc to give a non-zero result or make test carries
3002 on without noticing the failure. Fixed.
3005 *) DES library cleanups.
3008 *) Add support for PKCS#5 v2.0 PBE algorithms. This will permit PKCS#8 to be
3009 used with any cipher unlike PKCS#5 v1.5 which can at most handle 64 bit
3010 ciphers. NOTE: although the key derivation function has been verified
3011 against some published test vectors it has not been extensively tested
3012 yet. Added a -v2 "cipher" option to pkcs8 application to allow the use
3016 *) Instead of "mkdir -p", which is not fully portable, use new
3017 Perl script "util/mkdir-p.pl".
3020 *) Rewrite the way password based encryption (PBE) is handled. It used to
3021 assume that the ASN1 AlgorithmIdentifier parameter was a PBEParameter
3022 structure. This was true for the PKCS#5 v1.5 and PKCS#12 PBE algorithms
3023 but doesn't apply to PKCS#5 v2.0 where it can be something else. Now
3024 the 'parameter' field of the AlgorithmIdentifier is passed to the
3025 underlying key generation function so it must do its own ASN1 parsing.
3026 This has also changed the EVP_PBE_CipherInit() function which now has a
3027 'parameter' argument instead of literal salt and iteration count values
3028 and the function EVP_PBE_ALGOR_CipherInit() has been deleted.
3031 *) Support for PKCS#5 v1.5 compatible password based encryption algorithms
3032 and PKCS#8 functionality. New 'pkcs8' application linked to openssl.
3033 Needed to change the PEM_STRING_EVP_PKEY value which was just "PRIVATE
3034 KEY" because this clashed with PKCS#8 unencrypted string. Since this
3035 value was just used as a "magic string" and not used directly its
3036 value doesn't matter.
3039 *) Introduce some semblance of const correctness to BN. Shame C doesn't
3043 *) "linux-sparc64" configuration (ultrapenguin).
3044 [Ray Miller <ray.miller@oucs.ox.ac.uk>]
3045 "linux-sparc" configuration.
3046 [Christian Forster <fo@hawo.stw.uni-erlangen.de>]
3048 *) config now generates no-xxx options for missing ciphers.
3051 *) Support the EBCDIC character set (work in progress).
3052 File ebcdic.c not yet included because it has a different license.
3053 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
3055 *) Support BS2000/OSD-POSIX.
3056 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
3058 *) Make callbacks for key generation use void * instead of char *.
3061 *) Make S/MIME samples compile (not yet tested).
3064 *) Additional typesafe stacks.
3067 *) New configuration variants "bsdi-elf-gcc" (BSD/OS 4.x).
3071 Changes between 0.9.3 and 0.9.3a [29 May 1999]
3073 *) New configuration variant "sco5-gcc".
3075 *) Updated some demos.
3076 [Sean O Riordain, Wade Scholine]
3078 *) Add missing BIO_free at exit of pkcs12 application.
3081 *) Fix memory leak in conf.c.
3084 *) Updates for Win32 to assembler version of MD5.
3087 *) Set #! path to perl in apps/der_chop to where we found it
3088 instead of using a fixed path.
3091 *) SHA library changes for irix64-mips4-cc.
3094 *) Improvements for VMS support.
3098 Changes between 0.9.2b and 0.9.3 [24 May 1999]
3100 *) Bignum library bug fix. IRIX 6 passes "make test" now!
3101 This also avoids the problems with SC4.2 and unpatched SC5.
3102 [Andy Polyakov <appro@fy.chalmers.se>]
3104 *) New functions sk_num, sk_value and sk_set to replace the previous macros.
3105 These are required because of the typesafe stack would otherwise break
3106 existing code. If old code used a structure member which used to be STACK
3107 and is now STACK_OF (for example cert in a PKCS7_SIGNED structure) with
3108 sk_num or sk_value it would produce an error because the num, data members
3109 are not present in STACK_OF. Now it just produces a warning. sk_set
3110 replaces the old method of assigning a value to sk_value
3111 (e.g. sk_value(x, i) = y) which the library used in a few cases. Any code
3112 that does this will no longer work (and should use sk_set instead) but
3113 this could be regarded as a "questionable" behaviour anyway.
3116 *) Fix most of the other PKCS#7 bugs. The "experimental" code can now
3117 correctly handle encrypted S/MIME data.
3120 *) Change type of various DES function arguments from des_cblock
3121 (which means, in function argument declarations, pointer to char)
3122 to des_cblock * (meaning pointer to array with 8 char elements),
3123 which allows the compiler to do more typechecking; it was like
3124 that back in SSLeay, but with lots of ugly casts.
3126 Introduce new type const_des_cblock.
3129 *) Reorganise the PKCS#7 library and get rid of some of the more obvious
3130 problems: find RecipientInfo structure that matches recipient certificate
3131 and initialise the ASN1 structures properly based on passed cipher.
3134 *) Belatedly make the BN tests actually check the results.
3137 *) Fix the encoding and decoding of negative ASN1 INTEGERS and conversion
3138 to and from BNs: it was completely broken. New compilation option
3139 NEG_PUBKEY_BUG to allow for some broken certificates that encode public
3140 key elements as negative integers.
3143 *) Reorganize and speed up MD5.
3144 [Andy Polyakov <appro@fy.chalmers.se>]
3147 [Richard Levitte <richard@levitte.org>]
3149 *) New option -out to asn1parse to allow the parsed structure to be
3150 output to a file. This is most useful when combined with the -strparse
3151 option to examine the output of things like OCTET STRINGS.
3154 *) Make SSL library a little more fool-proof by not requiring any longer
3155 that SSL_set_{accept,connect}_state be called before
3156 SSL_{accept,connect} may be used (SSL_set_..._state is omitted
3157 in many applications because usually everything *appeared* to work as
3158 intended anyway -- now it really works as intended).
3161 *) Move openssl.cnf out of lib/.
3164 *) Fix various things to let OpenSSL even pass ``egcc -pipe -O2 -Wall
3165 -Wshadow -Wpointer-arith -Wcast-align -Wmissing-prototypes
3166 -Wmissing-declarations -Wnested-externs -Winline'' with EGCS 1.1.2+
3167 [Ralf S. Engelschall]
3169 *) Various fixes to the EVP and PKCS#7 code. It may now be able to
3170 handle PKCS#7 enveloped data properly.
3171 [Sebastian Akerman <sak@parallelconsulting.com>, modified by Steve]
3173 *) Create a duplicate of the SSL_CTX's CERT in SSL_new instead of
3174 copying pointers. The cert_st handling is changed by this in
3175 various ways (and thus what used to be known as ctx->default_cert
3176 is now called ctx->cert, since we don't resort to s->ctx->[default_]cert
3177 any longer when s->cert does not give us what we need).
3178 ssl_cert_instantiate becomes obsolete by this change.
3179 As soon as we've got the new code right (possibly it already is?),
3180 we have solved a couple of bugs of the earlier code where s->cert
3181 was used as if it could not have been shared with other SSL structures.
3183 Note that using the SSL API in certain dirty ways now will result
3184 in different behaviour than observed with earlier library versions:
3185 Changing settings for an SSL_CTX *ctx after having done s = SSL_new(ctx)
3186 does not influence s as it used to.
3188 In order to clean up things more thoroughly, inside SSL_SESSION
3189 we don't use CERT any longer, but a new structure SESS_CERT
3190 that holds per-session data (if available); currently, this is
3191 the peer's certificate chain and, for clients, the server's certificate
3192 and temporary key. CERT holds only those values that can have
3193 meaningful defaults in an SSL_CTX.
3196 *) New function X509V3_EXT_i2d() to create an X509_EXTENSION structure
3197 from the internal representation. Various PKCS#7 fixes: remove some
3198 evil casts and set the enc_dig_alg field properly based on the signing
3202 *) Allow PKCS#12 password to be set from the command line or the
3203 environment. Let 'ca' get its config file name from the environment
3204 variables "OPENSSL_CONF" or "SSLEAY_CONF" (for consistency with 'req'
3208 *) Allow certificate policies extension to use an IA5STRING for the
3209 organization field. This is contrary to the PKIX definition but
3210 VeriSign uses it and IE5 only recognises this form. Document 'x509'
3214 *) Add PEDANTIC compiler flag to allow compilation with gcc -pedantic,
3215 without disallowing inline assembler and the like for non-pedantic builds.
3218 *) Support Borland C++ builder.
3219 [Janez Jere <jj@void.si>, modified by Ulf Möller]
3224 *) SHA-1 cleanups and performance enhancements.
3225 [Andy Polyakov <appro@fy.chalmers.se>]
3227 *) Sparc v8plus assembler for the bignum library.
3228 [Andy Polyakov <appro@fy.chalmers.se>]
3230 *) Accept any -xxx and +xxx compiler options in Configure.
3233 *) Update HPUX configuration.
3236 *) Add missing sk_<type>_unshift() function to safestack.h
3237 [Ralf S. Engelschall]
3239 *) New function SSL_CTX_use_certificate_chain_file that sets the
3240 "extra_cert"s in addition to the certificate. (This makes sense
3241 only for "PEM" format files, as chains as a whole are not
3245 *) Support verify_depth from the SSL API.
3246 x509_vfy.c had what can be considered an off-by-one-error:
3247 Its depth (which was not part of the external interface)
3248 was actually counting the number of certificates in a chain;
3249 now it really counts the depth.
3252 *) Bugfix in crypto/x509/x509_cmp.c: The SSLerr macro was used
3253 instead of X509err, which often resulted in confusing error
3254 messages since the error codes are not globally unique
3255 (e.g. an alleged error in ssl3_accept when a certificate
3256 didn't match the private key).
3258 *) New function SSL_CTX_set_session_id_context that allows to set a default
3259 value (so that you don't need SSL_set_session_id_context for each
3260 connection using the SSL_CTX).
3263 *) OAEP decoding bug fix.
3266 *) Support INSTALL_PREFIX for package builders, as proposed by
3270 *) New Configure options "threads" and "no-threads". For systems
3271 where the proper compiler options are known (currently Solaris
3272 and Linux), "threads" is the default.
3275 *) New script util/mklink.pl as a faster substitute for util/mklink.sh.
3278 *) Install various scripts to $(OPENSSLDIR)/misc, not to
3279 $(INSTALLTOP)/bin -- they shouldn't clutter directories
3280 such as /usr/local/bin.
3283 *) "make linux-shared" to build shared libraries.
3284 [Niels Poppe <niels@netbox.org>]
3286 *) New Configure option no-<cipher> (rsa, idea, rc5, ...).
3289 *) Add the PKCS#12 API documentation to openssl.txt. Preliminary support for
3290 extension adding in x509 utility.
3293 *) Remove NOPROTO sections and error code comments.
3296 *) Partial rewrite of the DEF file generator to now parse the ANSI
3300 *) New Configure options --prefix=DIR and --openssldir=DIR.
3303 *) Complete rewrite of the error code script(s). It is all now handled
3304 by one script at the top level which handles error code gathering,
3305 header rewriting and C source file generation. It should be much better
3306 than the old method: it now uses a modified version of Ulf's parser to
3307 read the ANSI prototypes in all header files (thus the old K&R definitions
3308 aren't needed for error creation any more) and do a better job of
3309 translating function codes into names. The old 'ASN1 error code imbedded
3310 in a comment' is no longer necessary and it doesn't use .err files which
3311 have now been deleted. Also the error code call doesn't have to appear all
3312 on one line (which resulted in some large lines...).
3315 *) Change #include filenames from <foo.h> to <openssl/foo.h>.
3318 *) Change behaviour of ssl2_read when facing length-0 packets: Don't return
3319 0 (which usually indicates a closed connection), but continue reading.
3322 *) Fix some race conditions.
3325 *) Add support for CRL distribution points extension. Add Certificate
3326 Policies and CRL distribution points documentation.
3329 *) Move the autogenerated header file parts to crypto/opensslconf.h.
3332 *) Fix new 56-bit DES export ciphersuites: they were using 7 bytes instead of
3333 8 of keying material. Merlin has also confirmed interop with this fix
3334 between OpenSSL and Baltimore C/SSL 2.0 and J/SSL 2.0.
3335 [Merlin Hughes <merlin@baltimore.ie>]
3337 *) Fix lots of warnings.
3338 [Richard Levitte <levitte@stacken.kth.se>]
3340 *) In add_cert_dir() in crypto/x509/by_dir.c, break out of the loop if
3341 the directory spec didn't end with a LIST_SEPARATOR_CHAR.
3342 [Richard Levitte <levitte@stacken.kth.se>]
3344 *) Fix problems with sizeof(long) == 8.
3345 [Andy Polyakov <appro@fy.chalmers.se>]
3347 *) Change functions to ANSI C.
3350 *) Fix typos in error codes.
3351 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>, Ulf Möller]
3353 *) Remove defunct assembler files from Configure.
3356 *) SPARC v8 assembler BIGNUM implementation.
3357 [Andy Polyakov <appro@fy.chalmers.se>]
3359 *) Support for Certificate Policies extension: both print and set.
3360 Various additions to support the r2i method this uses.
3363 *) A lot of constification, and fix a bug in X509_NAME_oneline() that could
3364 return a const string when you are expecting an allocated buffer.
3367 *) Add support for ASN1 types UTF8String and VISIBLESTRING, also the CHOICE
3368 types DirectoryString and DisplayText.
3371 *) Add code to allow r2i extensions to access the configuration database,
3372 add an LHASH database driver and add several ctx helper functions.
3375 *) Fix an evil bug in bn_expand2() which caused various BN functions to
3376 fail when they extended the size of a BIGNUM.
3379 *) Various utility functions to handle SXNet extension. Modify mkdef.pl to
3380 support typesafe stack.
3383 *) Fix typo in SSL_[gs]et_options().
3384 [Nils Frostberg <nils@medcom.se>]
3386 *) Delete various functions and files that belonged to the (now obsolete)
3387 old X509V3 handling code.
3390 *) New Configure option "rsaref".
3393 *) Don't auto-generate pem.h.
3396 *) Introduce type-safe ASN.1 SETs.
3399 *) Convert various additional casted stacks to type-safe STACK_OF() variants.
3400 [Ben Laurie, Ralf S. Engelschall, Steve Henson]
3402 *) Introduce type-safe STACKs. This will almost certainly break lots of code
3403 that links with OpenSSL (well at least cause lots of warnings), but fear
3404 not: the conversion is trivial, and it eliminates loads of evil casts. A
3405 few STACKed things have been converted already. Feel free to convert more.
3406 In the fullness of time, I'll do away with the STACK type altogether.
3409 *) Add `openssl ca -revoke <certfile>' facility which revokes a certificate
3410 specified in <certfile> by updating the entry in the index.txt file.
3411 This way one no longer has to edit the index.txt file manually for
3412 revoking a certificate. The -revoke option does the gory details now.
3413 [Massimiliano Pala <madwolf@openca.org>, Ralf S. Engelschall]
3415 *) Fix `openssl crl -noout -text' combination where `-noout' killed the
3416 `-text' option at all and this way the `-noout -text' combination was
3417 inconsistent in `openssl crl' with the friends in `openssl x509|rsa|dsa'.
3418 [Ralf S. Engelschall]
3420 *) Make sure a corresponding plain text error message exists for the
3421 X509_V_ERR_CERT_REVOKED/23 error number which can occur when a
3422 verify callback function determined that a certificate was revoked.
3423 [Ralf S. Engelschall]
3425 *) Bugfix: In test/testenc, don't test "openssl <cipher>" for
3426 ciphers that were excluded, e.g. by -DNO_IDEA. Also, test
3427 all available cipers including rc5, which was forgotten until now.
3428 In order to let the testing shell script know which algorithms
3429 are available, a new (up to now undocumented) command
3430 "openssl list-cipher-commands" is used.
3433 *) Bugfix: s_client occasionally would sleep in select() when
3434 it should have checked SSL_pending() first.
3437 *) New functions DSA_do_sign and DSA_do_verify to provide access to
3438 the raw DSA values prior to ASN.1 encoding.
3441 *) Tweaks to Configure
3442 [Niels Poppe <niels@netbox.org>]
3444 *) Add support for PKCS#5 v2.0 ASN1 PBES2 structures. No other support,
3448 *) New variables $(RANLIB) and $(PERL) in the Makefiles.
3451 *) New config option to avoid instructions that are illegal on the 80386.
3452 The default code is faster, but requires at least a 486.
3455 *) Got rid of old SSL2_CLIENT_VERSION (inconsistently used) and
3456 SSL2_SERVER_VERSION (not used at all) macros, which are now the
3457 same as SSL2_VERSION anyway.
3460 *) New "-showcerts" option for s_client.
3463 *) Still more PKCS#12 integration. Add pkcs12 application to openssl
3464 application. Various cleanups and fixes.
3467 *) More PKCS#12 integration. Add new pkcs12 directory with Makefile.ssl and
3468 modify error routines to work internally. Add error codes and PBE init
3469 to library startup routines.
3472 *) Further PKCS#12 integration. Added password based encryption, PKCS#8 and
3473 packing functions to asn1 and evp. Changed function names and error
3474 codes along the way.
3477 *) PKCS12 integration: and so it begins... First of several patches to
3478 slowly integrate PKCS#12 functionality into OpenSSL. Add PKCS#12
3479 objects to objects.h
3482 *) Add a new 'indent' option to some X509V3 extension code. Initial ASN1
3483 and display support for Thawte strong extranet extension.
3486 *) Add LinuxPPC support.
3487 [Jeff Dubrule <igor@pobox.org>]
3489 *) Get rid of redundant BN file bn_mulw.c, and rename bn_div64 to
3490 bn_div_words in alpha.s.
3491 [Hannes Reinecke <H.Reinecke@hw.ac.uk> and Ben Laurie]
3493 *) Make sure the RSA OAEP test is skipped under -DRSAref because
3494 OAEP isn't supported when OpenSSL is built with RSAref.
3495 [Ulf Moeller <ulf@fitug.de>]
3497 *) Move definitions of IS_SET/IS_SEQUENCE inside crypto/asn1/asn1.h
3498 so they no longer are missing under -DNOPROTO.
3499 [Soren S. Jorvang <soren@t.dk>]
3502 Changes between 0.9.1c and 0.9.2b [22 Mar 1999]
3504 *) Make SSL_get_peer_cert_chain() work in servers. Unfortunately, it still
3505 doesn't work when the session is reused. Coming soon!
3508 *) Fix a security hole, that allows sessions to be reused in the wrong
3509 context thus bypassing client cert protection! All software that uses
3510 client certs and session caches in multiple contexts NEEDS PATCHING to
3511 allow session reuse! A fuller solution is in the works.
3512 [Ben Laurie, problem pointed out by Holger Reif, Bodo Moeller (and ???)]
3514 *) Some more source tree cleanups (removed obsolete files
3515 crypto/bf/asm/bf586.pl, test/test.txt and crypto/sha/asm/f.s; changed
3516 permission on "config" script to be executable) and a fix for the INSTALL
3518 [Ulf Moeller <ulf@fitug.de>]
3520 *) Remove some legacy and erroneous uses of malloc, free instead of
3522 [Lennart Bang <lob@netstream.se>, with minor changes by Steve]
3524 *) Make rsa_oaep_test return non-zero on error.
3525 [Ulf Moeller <ulf@fitug.de>]
3527 *) Add support for native Solaris shared libraries. Configure
3528 solaris-sparc-sc4-pic, make, then run shlib/solaris-sc4.sh. It'd be nice
3529 if someone would make that last step automatic.
3530 [Matthias Loepfe <Matthias.Loepfe@AdNovum.CH>]
3532 *) ctx_size was not built with the right compiler during "make links". Fixed.
3535 *) Change the meaning of 'ALL' in the cipher list. It now means "everything
3536 except NULL ciphers". This means the default cipher list will no longer
3537 enable NULL ciphers. They need to be specifically enabled e.g. with
3538 the string "DEFAULT:eNULL".
3541 *) Fix to RSA private encryption routines: if p < q then it would
3542 occasionally produce an invalid result. This will only happen with
3543 externally generated keys because OpenSSL (and SSLeay) ensure p > q.
3546 *) Be less restrictive and allow also `perl util/perlpath.pl
3547 /path/to/bin/perl' in addition to `perl util/perlpath.pl /path/to/bin',
3548 because this way one can also use an interpreter named `perl5' (which is
3549 usually the name of Perl 5.xxx on platforms where an Perl 4.x is still
3550 installed as `perl').
3551 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
3553 *) Let util/clean-depend.pl work also with older Perl 5.00x versions.
3554 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
3556 *) Fix Makefile.org so CC,CFLAG etc are passed to 'make links' add
3557 advapi32.lib to Win32 build and change the pem test comparision
3558 to fc.exe (thanks to Ulrich Kroener <kroneru@yahoo.com> for the
3559 suggestion). Fix misplaced ASNI prototypes and declarations in evp.h
3560 and crypto/des/ede_cbcm_enc.c.
3563 *) DES quad checksum was broken on big-endian architectures. Fixed.
3566 *) Comment out two functions in bio.h that aren't implemented. Fix up the
3567 Win32 test batch file so it (might) work again. The Win32 test batch file
3568 is horrible: I feel ill....
3571 *) Move various #ifdefs around so NO_SYSLOG, NO_DIRENT etc are now selected
3572 in e_os.h. Audit of header files to check ANSI and non ANSI
3573 sections: 10 functions were absent from non ANSI section and not exported
3574 from Windows DLLs. Fixed up libeay.num for new functions.
3577 *) Make `openssl version' output lines consistent.
3578 [Ralf S. Engelschall]
3580 *) Fix Win32 symbol export lists for BIO functions: Added
3581 BIO_get_ex_new_index, BIO_get_ex_num, BIO_get_ex_data and BIO_set_ex_data
3582 to ms/libeay{16,32}.def.
3583 [Ralf S. Engelschall]
3585 *) Second round of fixing the OpenSSL perl/ stuff. It now at least compiled
3586 fine under Unix and passes some trivial tests I've now added. But the
3587 whole stuff is horribly incomplete, so a README.1ST with a disclaimer was
3588 added to make sure no one expects that this stuff really works in the
3589 OpenSSL 0.9.2 release. Additionally I've started to clean the XS sources
3590 up and fixed a few little bugs and inconsistencies in OpenSSL.{pm,xs} and
3592 [Ralf S. Engelschall]
3594 *) Fix the generation of two part addresses in perl.
3595 [Kenji Miyake <kenji@miyake.org>, integrated by Ben Laurie]
3597 *) Add config entry for Linux on MIPS.
3598 [John Tobey <jtobey@channel1.com>]
3600 *) Make links whenever Configure is run, unless we are on Windoze.
3603 *) Permit extensions to be added to CRLs using crl_section in openssl.cnf.
3604 Currently only issuerAltName and AuthorityKeyIdentifier make any sense
3608 *) Add a useful kludge to allow package maintainers to specify compiler and
3609 other platforms details on the command line without having to patch the
3610 Configure script everytime: One now can use ``perl Configure
3611 <id>:<details>'', i.e. platform ids are allowed to have details appended
3612 to them (seperated by colons). This is treated as there would be a static
3613 pre-configured entry in Configure's %table under key <id> with value
3614 <details> and ``perl Configure <id>'' is called. So, when you want to
3615 perform a quick test-compile under FreeBSD 3.1 with pgcc and without
3616 assembler stuff you can use ``perl Configure "FreeBSD-elf:pgcc:-O6:::"''
3617 now, which overrides the FreeBSD-elf entry on-the-fly.
3618 [Ralf S. Engelschall]
3620 *) Disable new TLS1 ciphersuites by default: they aren't official yet.
3623 *) Allow DSO flags like -fpic, -fPIC, -KPIC etc. to be specified
3624 on the `perl Configure ...' command line. This way one can compile
3625 OpenSSL libraries with Position Independent Code (PIC) which is needed
3626 for linking it into DSOs.
3627 [Ralf S. Engelschall]
3629 *) Remarkably, export ciphers were totally broken and no-one had noticed!
3633 *) Cleaned up the LICENSE document: The official contact for any license
3634 questions now is the OpenSSL core team under openssl-core@openssl.org.
3635 And add a paragraph about the dual-license situation to make sure people
3636 recognize that _BOTH_ the OpenSSL license _AND_ the SSLeay license apply
3637 to the OpenSSL toolkit.
3638 [Ralf S. Engelschall]
3640 *) General source tree makefile cleanups: Made `making xxx in yyy...'
3641 display consistent in the source tree and replaced `/bin/rm' by `rm'.
3642 Additonally cleaned up the `make links' target: Remove unnecessary
3643 semicolons, subsequent redundant removes, inline point.sh into mklink.sh
3644 to speed processing and no longer clutter the display with confusing
3645 stuff. Instead only the actually done links are displayed.
3646 [Ralf S. Engelschall]
3648 *) Permit null encryption ciphersuites, used for authentication only. It used
3649 to be necessary to set the preprocessor define SSL_ALLOW_ENULL to do this.
3650 It is now necessary to set SSL_FORBID_ENULL to prevent the use of null
3654 *) Add a bunch of fixes to the PKCS#7 stuff. It used to sometimes reorder
3655 signed attributes when verifying signatures (this would break them),
3656 the detached data encoding was wrong and public keys obtained using
3657 X509_get_pubkey() weren't freed.
3660 *) Add text documentation for the BUFFER functions. Also added a work around
3661 to a Win95 console bug. This was triggered by the password read stuff: the
3662 last character typed gets carried over to the next fread(). If you were
3663 generating a new cert request using 'req' for example then the last
3664 character of the passphrase would be CR which would then enter the first
3668 *) Added the new `Includes OpenSSL Cryptography Software' button as
3669 doc/openssl_button.{gif,html} which is similar in style to the old SSLeay
3670 button and can be used by applications based on OpenSSL to show the
3671 relationship to the OpenSSL project.
3672 [Ralf S. Engelschall]
3674 *) Remove confusing variables in function signatures in files
3675 ssl/ssl_lib.c and ssl/ssl.h.
3676 [Lennart Bong <lob@kulthea.stacken.kth.se>]
3678 *) Don't install bss_file.c under PREFIX/include/
3679 [Lennart Bong <lob@kulthea.stacken.kth.se>]
3681 *) Get the Win32 compile working again. Modify mkdef.pl so it can handle
3682 functions that return function pointers and has support for NT specific
3683 stuff. Fix mk1mf.pl and VC-32.pl to support NT differences also. Various
3684 #ifdef WIN32 and WINNTs sprinkled about the place and some changes from
3685 unsigned to signed types: this was killing the Win32 compile.
3688 *) Add new certificate file to stack functions,
3689 SSL_add_dir_cert_subjects_to_stack() and
3690 SSL_add_file_cert_subjects_to_stack(). These largely supplant
3691 SSL_load_client_CA_file(), and can be used to add multiple certs easily
3692 to a stack (usually this is then handed to SSL_CTX_set_client_CA_list()).
3693 This means that Apache-SSL and similar packages don't have to mess around
3694 to add as many CAs as they want to the preferred list.
3697 *) Experiment with doxygen documentation. Currently only partially applied to
3699 See http://www.stack.nl/~dimitri/doxygen/index.html, and run doxygen with
3700 openssl.doxy as the configuration file.
3703 *) Get rid of remaining C++-style comments which strict C compilers hate.
3704 [Ralf S. Engelschall, pointed out by Carlos Amengual]
3706 *) Changed BN_RECURSION in bn_mont.c to BN_RECURSION_MONT so it is not
3707 compiled in by default: it has problems with large keys.
3710 *) Add a bunch of SSL_xxx() functions for configuring the temporary RSA and
3711 DH private keys and/or callback functions which directly correspond to
3712 their SSL_CTX_xxx() counterparts but work on a per-connection basis. This
3713 is needed for applications which have to configure certificates on a
3714 per-connection basis (e.g. Apache+mod_ssl) instead of a per-context basis
3716 For the RSA certificate situation is makes no difference, but
3717 for the DSA certificate situation this fixes the "no shared cipher"
3718 problem where the OpenSSL cipher selection procedure failed because the
3719 temporary keys were not overtaken from the context and the API provided
3720 no way to reconfigure them.
3721 The new functions now let applications reconfigure the stuff and they
3722 are in detail: SSL_need_tmp_RSA, SSL_set_tmp_rsa, SSL_set_tmp_dh,
3723 SSL_set_tmp_rsa_callback and SSL_set_tmp_dh_callback. Additionally a new
3724 non-public-API function ssl_cert_instantiate() is used as a helper
3725 function and also to reduce code redundancy inside ssl_rsa.c.
3726 [Ralf S. Engelschall]
3728 *) Move s_server -dcert and -dkey options out of the undocumented feature
3729 area because they are useful for the DSA situation and should be
3730 recognized by the users.
3731 [Ralf S. Engelschall]
3733 *) Fix the cipher decision scheme for export ciphers: the export bits are
3734 *not* within SSL_MKEY_MASK or SSL_AUTH_MASK, they are within
3735 SSL_EXP_MASK. So, the original variable has to be used instead of the
3736 already masked variable.
3737 [Richard Levitte <levitte@stacken.kth.se>]
3739 *) Fix 'port' variable from `int' to `unsigned int' in crypto/bio/b_sock.c
3740 [Richard Levitte <levitte@stacken.kth.se>]
3742 *) Change type of another md_len variable in pk7_doit.c:PKCS7_dataFinal()
3743 from `int' to `unsigned int' because it's a length and initialized by
3744 EVP_DigestFinal() which expects an `unsigned int *'.
3745 [Richard Levitte <levitte@stacken.kth.se>]
3747 *) Don't hard-code path to Perl interpreter on shebang line of Configure
3748 script. Instead use the usual Shell->Perl transition trick.
3749 [Ralf S. Engelschall]
3751 *) Make `openssl x509 -noout -modulus' functional also for DSA certificates
3752 (in addition to RSA certificates) to match the behaviour of `openssl dsa
3753 -noout -modulus' as it's already the case for `openssl rsa -noout
3754 -modulus'. For RSA the -modulus is the real "modulus" while for DSA
3755 currently the public key is printed (a decision which was already done by
3756 `openssl dsa -modulus' in the past) which serves a similar purpose.
3757 Additionally the NO_RSA no longer completely removes the whole -modulus
3758 option; it now only avoids using the RSA stuff. Same applies to NO_DSA
3760 [Ralf S. Engelschall]
3762 *) Add Arne Ansper's reliable BIO - this is an encrypted, block-digested
3763 BIO. See the source (crypto/evp/bio_ok.c) for more info.
3764 [Arne Ansper <arne@ats.cyber.ee>]
3766 *) Dump the old yucky req code that tried (and failed) to allow raw OIDs
3767 to be added. Now both 'req' and 'ca' can use new objects defined in the
3771 *) Add cool BIO that does syslog (or event log on NT).
3772 [Arne Ansper <arne@ats.cyber.ee>, integrated by Ben Laurie]
3774 *) Add support for new TLS ciphersuites, TLS_RSA_EXPORT56_WITH_RC4_56_MD5,
3775 TLS_RSA_EXPORT56_WITH_RC2_CBC_56_MD5 and
3776 TLS_RSA_EXPORT56_WITH_DES_CBC_SHA, as specified in "56-bit Export Cipher
3777 Suites For TLS", draft-ietf-tls-56-bit-ciphersuites-00.txt.
3780 *) Add preliminary config info for new extension code.
3783 *) Make RSA_NO_PADDING really use no padding.
3784 [Ulf Moeller <ulf@fitug.de>]
3786 *) Generate errors when private/public key check is done.
3789 *) Overhaul for 'crl' utility. New function X509_CRL_print. Partial support
3790 for some CRL extensions and new objects added.
3793 *) Really fix the ASN1 IMPLICIT bug this time... Partial support for private
3794 key usage extension and fuller support for authority key id.
3797 *) Add OAEP encryption for the OpenSSL crypto library. OAEP is the improved
3798 padding method for RSA, which is recommended for new applications in PKCS
3799 #1 v2.0 (RFC 2437, October 1998).
3800 OAEP (Optimal Asymmetric Encryption Padding) has better theoretical
3801 foundations than the ad-hoc padding used in PKCS #1 v1.5. It is secure
3802 against Bleichbacher's attack on RSA.
3803 [Ulf Moeller <ulf@fitug.de>, reformatted, corrected and integrated by
3806 *) Updates to the new SSL compression code
3807 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
3809 *) Fix so that the version number in the master secret, when passed
3810 via RSA, checks that if TLS was proposed, but we roll back to SSLv3
3811 (because the server will not accept higher), that the version number
3812 is 0x03,0x01, not 0x03,0x00
3813 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
3815 *) Run extensive memory leak checks on SSL apps. Fixed *lots* of memory
3816 leaks in ssl/ relating to new X509_get_pubkey() behaviour. Also fixes
3817 in apps/ and an unrelated leak in crypto/dsa/dsa_vrf.c
3820 *) Support for RAW extensions where an arbitrary extension can be
3821 created by including its DER encoding. See apps/openssl.cnf for
3825 *) Make sure latest Perl versions don't interpret some generated C array
3826 code as Perl array code in the crypto/err/err_genc.pl script.
3827 [Lars Weber <3weber@informatik.uni-hamburg.de>]
3829 *) Modify ms/do_ms.bat to not generate assembly language makefiles since
3830 not many people have the assembler. Various Win32 compilation fixes and
3831 update to the INSTALL.W32 file with (hopefully) more accurate Win32
3835 *) Modify configure script 'Configure' to automatically create crypto/date.h
3836 file under Win32 and also build pem.h from pem.org. New script
3837 util/mkfiles.pl to create the MINFO file on environments that can't do a
3838 'make files': perl util/mkfiles.pl >MINFO should work.
3841 *) Major rework of DES function declarations, in the pursuit of correctness
3842 and purity. As a result, many evil casts evaporated, and some weirdness,
3843 too. You may find this causes warnings in your code. Zapping your evil
3844 casts will probably fix them. Mostly.
3847 *) Fix for a typo in asn1.h. Bug fix to object creation script
3848 obj_dat.pl. It considered a zero in an object definition to mean
3849 "end of object": none of the objects in objects.h have any zeros
3850 so it wasn't spotted.
3851 [Steve Henson, reported by Erwann ABALEA <eabalea@certplus.com>]
3853 *) Add support for Triple DES Cipher Block Chaining with Output Feedback
3854 Masking (CBCM). In the absence of test vectors, the best I have been able
3855 to do is check that the decrypt undoes the encrypt, so far. Send me test
3856 vectors if you have them.
3859 *) Correct calculation of key length for export ciphers (too much space was
3860 allocated for null ciphers). This has not been tested!
3863 *) Modifications to the mkdef.pl for Win32 DEF file creation. The usage
3864 message is now correct (it understands "crypto" and "ssl" on its
3865 command line). There is also now an "update" option. This will update
3866 the util/ssleay.num and util/libeay.num files with any new functions.
3868 perl util/mkdef.pl crypto ssl update
3869 it will update them.
3872 *) Overhauled the Perl interface (perl/*):
3873 - ported BN stuff to OpenSSL's different BN library
3874 - made the perl/ source tree CVS-aware
3875 - renamed the package from SSLeay to OpenSSL (the files still contain
3876 their history because I've copied them in the repository)
3877 - removed obsolete files (the test scripts will be replaced
3878 by better Test::Harness variants in the future)
3879 [Ralf S. Engelschall]
3881 *) First cut for a very conservative source tree cleanup:
3882 1. merge various obsolete readme texts into doc/ssleay.txt
3883 where we collect the old documents and readme texts.
3884 2. remove the first part of files where I'm already sure that we no
3885 longer need them because of three reasons: either they are just temporary
3886 files which were left by Eric or they are preserved original files where
3887 I've verified that the diff is also available in the CVS via "cvs diff
3888 -rSSLeay_0_8_1b" or they were renamed (as it was definitely the case for
3889 the crypto/md/ stuff).
3890 [Ralf S. Engelschall]
3892 *) More extension code. Incomplete support for subject and issuer alt
3893 name, issuer and authority key id. Change the i2v function parameters
3894 and add an extra 'crl' parameter in the X509V3_CTX structure: guess
3895 what that's for :-) Fix to ASN1 macro which messed up
3896 IMPLICIT tag and add f_enum.c which adds a2i, i2a for ENUMERATED.
3899 *) Preliminary support for ENUMERATED type. This is largely copied from the
3903 *) Add new function, EVP_MD_CTX_copy() to replace frequent use of memcpy.
3904 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
3906 *) Make sure `make rehash' target really finds the `openssl' program.
3907 [Ralf S. Engelschall, Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
3909 *) Squeeze another 7% of speed out of MD5 assembler, at least on a P2. I'd
3910 like to hear about it if this slows down other processors.
3913 *) Add CygWin32 platform information to Configure script.
3914 [Alan Batie <batie@aahz.jf.intel.com>]
3916 *) Fixed ms/32all.bat script: `no_asm' -> `no-asm'
3917 [Rainer W. Gerling <gerling@mpg-gv.mpg.de>]
3919 *) New program nseq to manipulate netscape certificate sequences
3922 *) Modify crl2pkcs7 so it supports multiple -certfile arguments. Fix a
3926 *) Fixes to BN code. Previously the default was to define BN_RECURSION
3927 but the BN code had some problems that would cause failures when
3928 doing certificate verification and some other functions.
3929 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
3931 *) Add ASN1 and PEM code to support netscape certificate sequences.
3934 *) Add ASN1 and PEM code to support netscape certificate sequences.
3937 *) Add several PKIX and private extended key usage OIDs.
3940 *) Modify the 'ca' program to handle the new extension code. Modify
3941 openssl.cnf for new extension format, add comments.
3944 *) More X509 V3 changes. Fix typo in v3_bitstr.c. Add support to 'req'
3945 and add a sample to openssl.cnf so req -x509 now adds appropriate
3949 *) Continued X509 V3 changes. Add to other makefiles, integrate with the
3950 error code, add initial support to X509_print() and x509 application.
3953 *) Takes a deep breath and start addding X509 V3 extension support code. Add
3954 files in crypto/x509v3. Move original stuff to crypto/x509v3/old. All this
3955 stuff is currently isolated and isn't even compiled yet.
3958 *) Continuing patches for GeneralizedTime. Fix up certificate and CRL
3959 ASN1 to use ASN1_TIME and modify print routines to use ASN1_TIME_print.
3960 Removed the versions check from X509 routines when loading extensions:
3961 this allows certain broken certificates that don't set the version
3962 properly to be processed.
3965 *) Deal with irritating shit to do with dependencies, in YAAHW (Yet Another
3966 Ad Hoc Way) - Makefile.ssls now all contain local dependencies, which
3967 can still be regenerated with "make depend".
3970 *) Spelling mistake in C version of CAST-128.
3971 [Ben Laurie, reported by Jeremy Hylton <jeremy@cnri.reston.va.us>]
3973 *) Changes to the error generation code. The perl script err-code.pl
3974 now reads in the old error codes and retains the old numbers, only
3975 adding new ones if necessary. It also only changes the .err files if new
3976 codes are added. The makefiles have been modified to only insert errors
3977 when needed (to avoid needlessly modifying header files). This is done
3978 by only inserting errors if the .err file is newer than the auto generated
3979 C file. To rebuild all the error codes from scratch (the old behaviour)
3980 either modify crypto/Makefile.ssl to pass the -regen flag to err_code.pl
3981 or delete all the .err files.
3984 *) CAST-128 was incorrectly implemented for short keys. The C version has
3985 been fixed, but is untested. The assembler versions are also fixed, but
3986 new assembler HAS NOT BEEN GENERATED FOR WIN32 - the Makefile needs fixing
3987 to regenerate it if needed.
3988 [Ben Laurie, reported (with fix for C version) by Jun-ichiro itojun
3989 Hagino <itojun@kame.net>]
3991 *) File was opened incorrectly in randfile.c.
3992 [Ulf Möller <ulf@fitug.de>]
3994 *) Beginning of support for GeneralizedTime. d2i, i2d, check and print
3995 functions. Also ASN1_TIME suite which is a CHOICE of UTCTime or
3996 GeneralizedTime. ASN1_TIME is the proper type used in certificates et
3997 al: it's just almost always a UTCTime. Note this patch adds new error
3998 codes so do a "make errors" if there are problems.
4001 *) Correct Linux 1 recognition in config.
4002 [Ulf Möller <ulf@fitug.de>]
4004 *) Remove pointless MD5 hash when using DSA keys in ca.
4005 [Anonymous <nobody@replay.com>]
4007 *) Generate an error if given an empty string as a cert directory. Also
4008 generate an error if handed NULL (previously returned 0 to indicate an
4009 error, but didn't set one).
4010 [Ben Laurie, reported by Anonymous <nobody@replay.com>]
4012 *) Add prototypes to SSL methods. Make SSL_write's buffer const, at last.
4015 *) Fix the dummy function BN_ref_mod_exp() in rsaref.c to have the correct
4016 parameters. This was causing a warning which killed off the Win32 compile.
4019 *) Remove C++ style comments from crypto/bn/bn_local.h.
4020 [Neil Costigan <neil.costigan@celocom.com>]
4022 *) The function OBJ_txt2nid was broken. It was supposed to return a nid
4023 based on a text string, looking up short and long names and finally
4024 "dot" format. The "dot" format stuff didn't work. Added new function
4025 OBJ_txt2obj to do the same but return an ASN1_OBJECT and rewrote
4026 OBJ_txt2nid to use it. OBJ_txt2obj can also return objects even if the
4027 OID is not part of the table.
4030 *) Add prototypes to X509 lookup/verify methods, fixing a bug in
4031 X509_LOOKUP_by_alias().
4034 *) Sort openssl functions by name.
4037 *) Get the gendsa program working (hopefully) and add it to app list. Remove
4038 encryption from sample DSA keys (in case anyone is interested the password
4042 *) Make _all_ *_free functions accept a NULL pointer.
4043 [Frans Heymans <fheymans@isaserver.be>]
4045 *) If a DH key is generated in s3_srvr.c, don't blow it by trying to use
4047 [Anonymous <nobody@replay.com>]
4049 *) s_server should send the CAfile as acceptable CAs, not its own cert.
4050 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
4052 *) Don't blow it for numeric -newkey arguments to apps/req.
4053 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
4055 *) Temp key "for export" tests were wrong in s3_srvr.c.
4056 [Anonymous <nobody@replay.com>]
4058 *) Add prototype for temp key callback functions
4059 SSL_CTX_set_tmp_{rsa,dh}_callback().
4062 *) Make DH_free() tolerate being passed a NULL pointer (like RSA_free() and
4063 DSA_free()). Make X509_PUBKEY_set() check for errors in d2i_PublicKey().
4066 *) X509_name_add_entry() freed the wrong thing after an error.
4067 [Arne Ansper <arne@ats.cyber.ee>]
4069 *) rsa_eay.c would attempt to free a NULL context.
4070 [Arne Ansper <arne@ats.cyber.ee>]
4072 *) BIO_s_socket() had a broken should_retry() on Windoze.
4073 [Arne Ansper <arne@ats.cyber.ee>]
4075 *) BIO_f_buffer() didn't pass on BIO_CTRL_FLUSH.
4076 [Arne Ansper <arne@ats.cyber.ee>]
4078 *) Make sure the already existing X509_STORE->depth variable is initialized
4079 in X509_STORE_new(), but document the fact that this variable is still
4080 unused in the certificate verification process.
4081 [Ralf S. Engelschall]
4083 *) Fix the various library and apps files to free up pkeys obtained from
4084 X509_PUBKEY_get() et al. Also allow x509.c to handle netscape extensions.
4087 *) Fix reference counting in X509_PUBKEY_get(). This makes
4088 demos/maurice/example2.c work, amongst others, probably.
4089 [Steve Henson and Ben Laurie]
4091 *) First cut of a cleanup for apps/. First the `ssleay' program is now named
4092 `openssl' and second, the shortcut symlinks for the `openssl <command>'
4093 are no longer created. This way we have a single and consistent command
4094 line interface `openssl <command>', similar to `cvs <command>'.
4095 [Ralf S. Engelschall, Paul Sutton and Ben Laurie]
4097 *) ca.c: move test for DSA keys inside #ifndef NO_DSA. Make pubkey
4098 BIT STRING wrapper always have zero unused bits.
4101 *) Add CA.pl, perl version of CA.sh, add extended key usage OID.
4104 *) Make the top-level INSTALL documentation easier to understand.
4107 *) Makefiles updated to exit if an error occurs in a sub-directory
4108 make (including if user presses ^C) [Paul Sutton]
4110 *) Make Montgomery context stuff explicit in RSA data structure.
4113 *) Fix build order of pem and err to allow for generated pem.h.
4116 *) Fix renumbering bug in X509_NAME_delete_entry().
4119 *) Enhanced the err-ins.pl script so it makes the error library number
4120 global and can add a library name. This is needed for external ASN1 and
4121 other error libraries.
4124 *) Fixed sk_insert which never worked properly.
4127 *) Fix ASN1 macros so they can handle indefinite length construted
4128 EXPLICIT tags. Some non standard certificates use these: they can now
4132 *) Merged the various old/obsolete SSLeay documentation files (doc/xxx.doc)
4133 into a single doc/ssleay.txt bundle. This way the information is still
4134 preserved but no longer messes up this directory. Now it's new room for
4135 the new set of documenation files.
4136 [Ralf S. Engelschall]
4138 *) SETs were incorrectly DER encoded. This was a major pain, because they
4139 shared code with SEQUENCEs, which aren't coded the same. This means that
4140 almost everything to do with SETs or SEQUENCEs has either changed name or
4141 number of arguments.
4142 [Ben Laurie, based on a partial fix by GP Jayan <gp@nsj.co.jp>]
4144 *) Fix test data to work with the above.
4147 *) Fix the RSA header declarations that hid a bug I fixed in 0.9.0b but
4148 was already fixed by Eric for 0.9.1 it seems.
4149 [Ben Laurie - pointed out by Ulf Möller <ulf@fitug.de>]
4151 *) Autodetect FreeBSD3.
4154 *) Fix various bugs in Configure. This affects the following platforms:
4158 unixware-2.0-pentium
4162 *) Eliminate generated files from CVS. Reorder tests to regenerate files
4163 before they are needed.
4166 *) Generate Makefile.ssl from Makefile.org (to keep CVS happy).
4170 Changes between 0.9.1b and 0.9.1c [23-Dec-1998]
4172 *) Added OPENSSL_VERSION_NUMBER to crypto/crypto.h and
4173 changed SSLeay to OpenSSL in version strings.
4174 [Ralf S. Engelschall]
4176 *) Some fixups to the top-level documents.
4179 *) Fixed the nasty bug where rsaref.h was not found under compile-time
4180 because the symlink to include/ was missing.
4181 [Ralf S. Engelschall]
4183 *) Incorporated the popular no-RSA/DSA-only patches
4184 which allow to compile a RSA-free SSLeay.
4185 [Andrew Cooke / Interrader Ldt., Ralf S. Engelschall]
4187 *) Fixed nasty rehash problem under `make -f Makefile.ssl links'
4188 when "ssleay" is still not found.
4189 [Ralf S. Engelschall]
4191 *) Added more platforms to Configure: Cray T3E, HPUX 11,
4192 [Ralf S. Engelschall, Beckmann <beckman@acl.lanl.gov>]
4194 *) Updated the README file.
4195 [Ralf S. Engelschall]
4197 *) Added various .cvsignore files in the CVS repository subdirs
4198 to make a "cvs update" really silent.
4199 [Ralf S. Engelschall]
4201 *) Recompiled the error-definition header files and added
4202 missing symbols to the Win32 linker tables.
4203 [Ralf S. Engelschall]
4205 *) Cleaned up the top-level documents;
4206 o new files: CHANGES and LICENSE
4207 o merged VERSION, HISTORY* and README* files a CHANGES.SSLeay
4208 o merged COPYRIGHT into LICENSE
4209 o removed obsolete TODO file
4210 o renamed MICROSOFT to INSTALL.W32
4211 [Ralf S. Engelschall]
4213 *) Removed dummy files from the 0.9.1b source tree:
4214 crypto/asn1/x crypto/bio/cd crypto/bio/fg crypto/bio/grep crypto/bio/vi
4215 crypto/bn/asm/......add.c crypto/bn/asm/a.out crypto/dsa/f crypto/md5/f
4216 crypto/pem/gmon.out crypto/perlasm/f crypto/pkcs7/build crypto/rsa/f
4217 crypto/sha/asm/f crypto/threads/f ms/zzz ssl/f ssl/f.mak test/f
4218 util/f.mak util/pl/f util/pl/f.mak crypto/bf/bf_locl.old apps/f
4219 [Ralf S. Engelschall]
4221 *) Added various platform portability fixes.
4224 *) The Genesis of the OpenSSL rpject:
4225 We start with the latest (unreleased) SSLeay version 0.9.1b which Eric A.
4226 Young and Tim J. Hudson created while they were working for C2Net until
4228 [The OpenSSL Project]
4231 Changes between 0.9.0b and 0.9.1b [not released]
4233 *) Updated a few CA certificates under certs/
4236 *) Changed some BIGNUM api stuff.
4239 *) Various platform ports: OpenBSD, Ultrix, IRIX 64bit, NetBSD,
4240 DGUX x86, Linux Alpha, etc.
4243 *) New COMP library [crypto/comp/] for SSL Record Layer Compression:
4244 RLE (dummy implemented) and ZLIB (really implemented when ZLIB is
4248 *) Add -strparse option to asn1pars program which parses nested
4250 [Dr Stephen Henson <shenson@bigfoot.com>]
4252 *) Added "oid_file" to ssleay.cnf for "ca" and "req" programs.
4255 *) DSA fix for "ca" program.
4258 *) Added "-genkey" option to "dsaparam" program.
4261 *) Added RIPE MD160 (rmd160) message digest.
4264 *) Added -a (all) option to "ssleay version" command.
4267 *) Added PLATFORM define which is the id given to Configure.
4270 *) Added MemCheck_XXXX functions to crypto/mem.c for memory checking.
4273 *) Extended the ASN.1 parser routines.
4276 *) Extended BIO routines to support REUSEADDR, seek, tell, etc.
4279 *) Added a BN_CTX to the BN library.
4282 *) Fixed the weak key values in DES library
4285 *) Changed API in EVP library for cipher aliases.
4288 *) Added support for RC2/64bit cipher.
4291 *) Converted the lhash library to the crypto/mem.c functions.
4294 *) Added more recognized ASN.1 object ids.
4297 *) Added more RSA padding checks for SSL/TLS.
4300 *) Added BIO proxy/filter functionality.
4303 *) Added extra_certs to SSL_CTX which can be used
4304 send extra CA certificates to the client in the CA cert chain sending
4305 process. It can be configured with SSL_CTX_add_extra_chain_cert().
4308 *) Now Fortezza is denied in the authentication phase because
4309 this is key exchange mechanism is not supported by SSLeay at all.
4312 *) Additional PKCS1 checks.
4315 *) Support the string "TLSv1" for all TLS v1 ciphers.
4318 *) Added function SSL_get_ex_data_X509_STORE_CTX_idx() which gives the
4319 ex_data index of the SSL context in the X509_STORE_CTX ex_data.
4322 *) Fixed a few memory leaks.
4325 *) Fixed various code and comment typos.
4328 *) A minor bug in ssl/s3_clnt.c where there would always be 4 0
4329 bytes sent in the client random.
4330 [Edward Bishop <ebishop@spyglass.com>]
projects / openssl.git / blob