4 Changes between 0.9.6 and 0.9.7 [xx XXX 2000]
6 *) New options to 'ca' utility to support V2 CRL entry extensions.
7 Currently CRL reason, invalidity date and hold instruction are
8 supported. Add new CRL extensions to V3 code and some new objects.
11 *) Add "-rand" option also to s_client and s_server.
14 *) New function EVP_CIPHER_CTX_set_padding() this is used to
15 disable standard block padding (aka PKCS#5 padding) in the EVP
16 API, which was previously mandatory. This means that the data is
17 not padded in any way and so the total length much be a multiple
18 of the block size, otherwise an error occurs.
21 *) Initial (incomplete) OCSP SSL support.
24 *) Fix CPU detection on Irix 6.x.
25 [Kurt Hockenbury <khockenb@stevens-tech.edu> and
26 "Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
28 *) New function OCSP_parse_url(). This splits up a URL into its host,
29 port and path components: primarily to parse OCSP URLs. New -url
30 option to ocsp utility.
33 *) New nonce behavior. The return value of OCSP_check_nonce() now
34 reflects the various checks performed. Applications can decide
35 whether to tolerate certain situations such as an absent nonce
36 in a response when one was present in a request: the ocsp application
37 just prints out a warning. New function OCSP_add1_basic_nonce()
38 this is to allow responders to include a nonce in a response even if
39 the request is nonce-less.
42 *) Use the cached encoding of an X509_NAME structure rather than
43 copying it. This is apparently the reason for the libsafe "errors"
44 but the code is actually correct.
47 *) Disable stdin buffering in load_cert (apps/apps.c) so that no certs are
48 skipped when using openssl x509 multiple times on a single input file,
49 e.g. "(openssl x509 -out cert1; openssl x509 -out cert2) <certs".
52 *) Make ASN1_UTCTIME_set_string() and ASN1_GENERALIZEDTIME_set_string()
53 set string type: to handle setting ASN1_TIME structures. Fix ca
54 utility to correctly initialize revocation date of CRLs.
57 *) New option SSL_OP_CIPHER_SERVER_PREFERENCE allows the server to override
58 the clients preferred ciphersuites and rather use its own preferences.
59 Should help to work around M$ SGC (Server Gated Cryptography) bug in
60 Internet Explorer by ensuring unchanged hash method during stepup.
63 *) Make mkdef.pl recognise all DECLARE_ASN1 macros, change rijndael
64 to aes and add a new 'exist' option to print out symbols that don't
68 *) Additional options to ocsp utility to allow flags to be set and
69 additional certificates supplied.
72 *) Add the option -VAfile to 'openssl ocsp', so the user can give the
73 OCSP client a number of certificate to only verify the response
77 *) Add new function BN_rand_range(), and fix DSA_sign_setup() to prevent
78 Bleichenbacher's DSA attack.
79 [Ulf Moeller, Bodo Moeller]
81 *) Update Rijndael code to version 3.0 and change EVP AES ciphers to
82 handle the new API. Currently only ECB, CBC modes supported. Add new
83 AES OIDs. Add TLS AES ciphersuites as described in the "AES Ciphersuites
84 for TLS" draft-ietf-tls-ciphersuite-03.txt.
85 [Ben Laurie, Steve Henson]
87 *) In the NCONF_...-based implementations for CONF_... queries
88 (crypto/conf/conf_lib.c), if the input LHASH is NULL, avoid using
89 a temporary CONF structure with the data component set to NULL
90 (which gives segmentation faults in lh_retrieve).
91 Instead, use NULL for the CONF pointer in CONF_get_string and
92 CONF_get_number (which may use environment variables) and directly
93 return NULL from CONF_get_section.
96 *) Fix potential buffer overrun for EBCDIC.
99 *) New function OCSP_copy_nonce() to copy nonce value (if present) from
103 *) Functions for OCSP responders. OCSP_request_onereq_count(),
104 OCSP_request_onereq_get0(), OCSP_onereq_get0_id() and OCSP_id_get0_info()
105 extract information from a certificate request. OCSP_response_create()
106 creates a response and optionally adds a basic response structure.
107 OCSP_basic_add1_status() adds a complete single response to a basic
108 reponse and returns the OCSP_SINGLERESP structure just added (to allow
109 extensions to be included for example). OCSP_basic_add1_cert() adds a
110 certificate to a basic response and OCSP_basic_sign() signs a basic
111 response with various flags. New helper functions ASN1_TIME_check()
112 (checks validity of ASN1_TIME structure) and ASN1_TIME_to_generalizedtime()
113 (converts ASN1_TIME to GeneralizedTime).
116 *) Various new functions. EVP_Digest() combines EVP_Digest{Init,Update,Final}()
117 in a single operation. X509_get0_pubkey_bitstr() extracts the public_key
118 structure from a certificate. X509_pubkey_digest() digests tha public_key
119 contents: this is used in various key identifiers.
122 *) Tolerate nonRepudiation as being valid for S/MIME signing and certSign
123 keyUsage if basicConstraints absent for a CA.
126 *) Make SMIME_write_PKCS7() write mail header values with a format that
127 is more generally accepted (no spaces before the semicolon), since
128 some programs can't parse those values properly otherwise. Also make
129 sure BIO's that break lines after each write do not create invalid
133 *) Make sk_sort() tolerate a NULL argument.
134 [Steve Henson reported by Massimiliano Pala <madwolf@comune.modena.it>]
136 *) New OCSP verify flag OCSP_TRUSTOTHER. When set the "other" certificates
137 passed by the function are trusted implicitly. If any of them signed the
138 reponse then it is assumed to be valid and is not verified.
141 *) Zero the premaster secret after deriving the master secret in
145 *) In PKCS7_set_type() initialise content_type in PKCS7_ENC_CONTENT
146 to data. This was previously part of the PKCS7 ASN1 code. This
147 was causing problems with OpenSSL created PKCS#12 and PKCS#7 structures.
148 [Steve Henson, reported by Kenneth R. Robinette
149 <support@securenetterm.com>]
151 *) Add CRYPTO_push_info() and CRYPTO_pop_info() calls to new ASN1
152 routines: without these tracing memory leaks is very painful.
153 Fix leaks in PKCS12 and PKCS7 routines.
156 *) Fix for Irix with NO_ASM.
157 ["Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
159 *) Add some EVP_add_digest_alias registrations (as found in
160 OpenSSL_add_all_digests()), to SSL_library_init()
161 aka OpenSSL_add_ssl_algorithms(). This provides improved
162 compatibility with peers using X.509 certificates
163 with unconventional AlgorithmIdentifier OIDs.
166 *) ./config script fixes.
167 [Ulf Moeller, Richard Levitte]
169 *) Make X509_time_adj() cope with the new behaviour of ASN1_TIME_new().
170 Previously it initialised the 'type' argument to V_ASN1_UTCTIME which
171 effectively meant GeneralizedTime would never be used. Now it
172 is initialised to -1 but X509_time_adj() now has to check the value
173 and use ASN1_TIME_set() if the value is not V_ASN1_UTCTIME or
174 V_ASN1_GENERALIZEDTIME, without this it always uses GeneralizedTime.
175 [Steve Henson, reported by Kenneth R. Robinette
176 <support@securenetterm.com>]
178 *) Fixes to BN_to_ASN1_INTEGER when bn is zero. This would previously
179 result in a zero length in the ASN1_INTEGER structure which was
180 not consistent with the structure when d2i_ASN1_INTEGER() was used
181 and would cause ASN1_INTEGER_cmp() to fail. Enhance s2i_ASN1_INTEGER()
182 to cope with hex and negative integers. Fix bug in i2a_ASN1_INTEGER()
183 where it did not print out a minus for negative ASN1_INTEGER.
186 *) Fix 'openssl passwd -1'.
189 *) Add summary printout to ocsp utility. The various functions which
190 convert status values to strings have been renamed to:
191 OCSP_response_status_str(), OCSP_cert_status_str() and
192 OCSP_crl_reason_str() and are no longer static. New options
193 to verify nonce values and to disable verification. OCSP response
194 printout format cleaned up.
197 *) Add additional OCSP certificate checks. These are those specified
198 in RFC2560. This consists of two separate checks: the CA of the
199 certificate being checked must either be the OCSP signer certificate
200 or the issuer of the OCSP signer certificate. In the latter case the
201 OCSP signer certificate must contain the OCSP signing extended key
202 usage. This check is performed by attempting to match the OCSP
203 signer or the OCSP signer CA to the issuerNameHash and issuerKeyHash
204 in the OCSP_CERTID structures of the response.
207 *) Initial OCSP certificate verification added to OCSP_basic_verify()
208 and related routines. This uses the standard OpenSSL certificate
209 verify routines to perform initial checks (just CA validity) and
210 to obtain the certificate chain. Then additional checks will be
211 performed on the chain. Currently the root CA is checked to see
212 if it is explicitly trusted for OCSP signing. This is used to set
213 a root CA as a global signing root: that is any certificate that
214 chains to that CA is an acceptable OCSP signing certificate.
217 *) New '-extfile ...' option to 'openssl ca' for reading X.509v3
218 extensions from a separate configuration file.
219 As when reading extensions from the main configuration file,
220 the '-extensions ...' option may be used for specifying the
222 [Massimiliano Pala <madwolf@comune.modena.it>]
224 *) Change PKCS12_key_gen_asc() so it can cope with non null
225 terminated strings whose length is passed in the passlen
226 parameter, for example from PEM callbacks. This was done
227 by adding an extra length parameter to asc2uni().
228 [Steve Henson, reported by <oddissey@samsung.co.kr>]
230 *) New OCSP utility. Allows OCSP requests to be generated or
231 read. The request can be sent to a responder and the output
232 parsed, outputed or printed in text form. Not complete yet:
233 still needs to check the OCSP response validity.
236 *) New subcommands for 'openssl ca':
237 'openssl ca -status <serial>' prints the status of the cert with
238 the given serial number (according to the index file).
239 'openssl ca -updatedb' updates the expiry status of certificates
241 [Massimiliano Pala <madwolf@comune.modena.it>]
243 *) New '-newreq-nodes' command option to CA.pl. This is like
244 '-newreq', but calls 'openssl req' with the '-nodes' option
245 so that the resulting key is not encrypted.
246 [Damien Miller <djm@mindrot.org>]
248 *) New configuration for the GNU Hurd.
249 [Jonathan Bartlett <johnnyb@wolfram.com> via Richard Levitte]
251 *) Initial code to implement OCSP basic response verify. This
252 is currently incomplete. Currently just finds the signer's
253 certificate and verifies the signature on the response.
256 *) New SSLeay_version code SSLEAY_DIR to determine the compiled-in
257 value of OPENSSLDIR. This is available via the new '-d' option
258 to 'openssl version', and is also included in 'openssl version -a'.
261 *) Fix C code generated by 'openssl dsaparam -C': If a BN_bin2bn
262 call failed, free the DSA structure.
265 *) Allowing defining memory allocation callbacks that will be given
266 file name and line number information in additional arguments
267 (a const char* and an int). The basic functionality remains, as
268 well as the original possibility to just replace malloc(),
269 realloc() and free() by functions that do not know about these
270 additional arguments. To register and find out the current
271 settings for extended allocation functions, the following
272 functions are provided:
274 CRYPTO_set_mem_ex_functions
275 CRYPTO_set_locked_mem_ex_functions
276 CRYPTO_get_mem_ex_functions
277 CRYPTO_get_locked_mem_ex_functions
279 These work the same way as CRYPTO_set_mem_functions and friends.
280 CRYPTO_get_[locked_]mem_functions now writes 0 where such an
281 extended allocation function is enabled.
282 Similarly, CRYPTO_get_[locked_]mem_ex_functions writes 0 where
283 a conventional allocation function is enabled.
284 [Richard Levitte, Bodo Moeller]
286 *) Fix to uni2asc() to cope with zero length Unicode strings.
287 These are present in some PKCS#12 files.
290 *) Finish off removing the remaining LHASH function pointer casts.
291 There should no longer be any prototype-casting required when using
292 the LHASH abstraction, and any casts that remain are "bugs". See
293 the callback types and macros at the head of lhash.h for details
294 (and "OBJ_cleanup" in crypto/objects/obj_dat.c as an example).
297 *) Add automatic query of EGD sockets in RAND_poll() for the unix variant.
298 If an EGD or PRNGD is running and enough entropy is returned, automatic
299 seeding like with /dev/[u]random will be performed.
300 Positions tried are: /etc/entropy, /var/run/egd-pool.
303 *) Change the Unix RAND_poll() variant to be able to poll several
304 random devices, as specified by DEVRANDOM, until a sufficient amount
305 of data has been collected. We spend at most 10 ms on each file
306 (select timeout) and read in non-blocking mode. DEVRANDOM now
307 defaults to the list "/dev/urandom", "/dev/random", "/dev/srandom"
308 (previously it was just the string "/dev/urandom"), so on typical
309 platforms the 10 ms delay will never occur.
310 Also separate out the Unix variant to its own file, rand_unix.c.
311 For VMS, there's a currently-empty rand_vms.c.
314 *) Move OCSP client related routines to ocsp_cl.c. These
315 provide utility functions which an application needing
316 to issue a request to an OCSP responder and analyse the
317 response will typically need: as opposed to those which an
318 OCSP responder itself would need which will be added later.
320 OCSP_request_sign() signs an OCSP request with an API similar
321 to PKCS7_sign(). OCSP_response_status() returns status of OCSP
322 response. OCSP_response_get1_basic() extracts basic response
323 from response. OCSP_resp_find_status(): finds and extracts status
324 information from an OCSP_CERTID structure (which will be created
325 when the request structure is built). These are built from lower
326 level functions which work on OCSP_SINGLERESP structures but
327 wont normally be used unless the application wishes to examine
328 extensions in the OCSP response for example.
330 Replace nonce routines with a pair of functions.
331 OCSP_request_add1_nonce() adds a nonce value and optionally
332 generates a random value. OCSP_check_nonce() checks the
333 validity of the nonce in an OCSP response.
336 *) Change function OCSP_request_add() to OCSP_request_add0_id().
337 This doesn't copy the supplied OCSP_CERTID and avoids the
338 need to free up the newly created id. Change return type
339 to OCSP_ONEREQ to return the internal OCSP_ONEREQ structure.
340 This can then be used to add extensions to the request.
341 Deleted OCSP_request_new(), since most of its functionality
342 is now in OCSP_REQUEST_new() (and the case insensitive name
343 clash) apart from the ability to set the request name which
344 will be added elsewhere.
347 *) Update OCSP API. Remove obsolete extensions argument from
348 various functions. Extensions are now handled using the new
349 OCSP extension code. New simple OCSP HTTP function which
350 can be used to send requests and parse the response.
353 *) Fix the PKCS#7 (S/MIME) code to work with new ASN1. Two new
354 ASN1_ITEM structures help with sign and verify. PKCS7_ATTR_SIGN
355 uses the special reorder version of SET OF to sort the attributes
356 and reorder them to match the encoded order. This resolves a long
357 standing problem: a verify on a PKCS7 structure just after signing
358 it used to fail because the attribute order did not match the
359 encoded order. PKCS7_ATTR_VERIFY does not reorder the attributes:
360 it uses the received order. This is necessary to tolerate some broken
361 software that does not order SET OF. This is handled by encoding
362 as a SEQUENCE OF but using implicit tagging (with UNIVERSAL class)
363 to produce the required SET OF.
366 *) Have mk1mf.pl generate the macros OPENSSL_BUILD_SHLIBCRYPTO and
367 OPENSSL_BUILD_SHLIBSSL and use them appropriately in the header
368 files to get correct declarations of the ASN.1 item variables.
371 *) Rewrite of PKCS#12 code to use new ASN1 functionality. Replace many
372 PKCS#12 macros with real functions. Fix two unrelated ASN1 bugs:
373 asn1_check_tlen() would sometimes attempt to use 'ctx' when it was
374 NULL and ASN1_TYPE was not dereferenced properly in asn1_ex_c2i().
375 New ASN1 macro: DECLARE_ASN1_ITEM() which just declares the relevant
376 ASN1_ITEM and no wrapper functions.
379 *) New functions or ASN1_item_d2i_fp() and ASN1_item_d2i_bio(). These
380 replace the old function pointer based I/O routines. Change most of
381 the *_d2i_bio() and *_d2i_fp() functions to use these.
384 *) Enhance mkdef.pl to be more accepting about spacing in C preprocessor
385 lines, recognice more "algorithms" that can be deselected, and make
386 it complain about algorithm deselection that isn't recognised.
389 *) New ASN1 functions to handle dup, sign, verify, digest, pack and
390 unpack operations in terms of ASN1_ITEM. Modify existing wrappers
391 to use new functions. Add NO_ASN1_OLD which can be set to remove
392 some old style ASN1 functions: this can be used to determine if old
393 code will still work when these eventually go away.
396 *) New extension functions for OCSP structures, these follow the
397 same conventions as certificates and CRLs.
400 *) New function X509V3_add1_i2d(). This automatically encodes and
401 adds an extension. Its behaviour can be customised with various
402 flags to append, replace or delete. Various wrappers added for
403 certifcates and CRLs.
406 *) Fix to avoid calling the underlying ASN1 print routine when
407 an extension cannot be parsed. Correct a typo in the
408 OCSP_SERVICELOC extension. Tidy up print OCSP format.
411 *) Increase s2->wbuf allocation by one byte in ssl2_new (ssl/s2_lib.c).
412 Otherwise do_ssl_write (ssl/s2_pkt.c) will write beyond buffer limits
413 when writing a 32767 byte record.
414 [Bodo Moeller; problem reported by Eric Day <eday@concentric.net>]
416 *) In RSA_eay_public_{en,ed}crypt and RSA_eay_mod_exp (rsa_eay.c),
417 obtain lock CRYPTO_LOCK_RSA before setting rsa->_method_mod_{n,p,q}.
419 (RSA objects have a reference count access to which is protected
420 by CRYPTO_LOCK_RSA [see rsa_lib.c, s3_srvr.c, ssl_cert.c, ssl_rsa.c],
421 so they are meant to be shared between threads.)
422 [Bodo Moeller, Geoff Thorpe; original patch submitted by
423 "Reddie, Steven" <Steven.Reddie@ca.com>]
425 *) Make mkdef.pl parse some of the ASN1 macros and add apropriate
426 entries for variables.
429 *) Fix a deadlock in CRYPTO_mem_leaks().
432 *) Add functionality to apps/openssl.c for detecting locking
433 problems: As the program is single-threaded, all we have
434 to do is register a locking callback using an array for
435 storing which locks are currently held by the program.
438 *) Use a lock around the call to CRYPTO_get_ex_new_index() in
439 SSL_get_ex_data_X509_STORE_idx(), which is used in
440 ssl_verify_cert_chain() and thus can be called at any time
441 during TLS/SSL handshakes so that thread-safety is essential.
442 Unfortunately, the ex_data design is not at all suited
443 for multi-threaded use, so it probably should be abolished.
446 *) Added Broadcom "ubsec" ENGINE to OpenSSL.
447 [Broadcom, tweaked and integrated by Geoff Thorpe]
449 *) Move common extension printing code to new function
450 X509V3_print_extensions(). Reorganise OCSP print routines and
451 implement some needed OCSP ASN1 functions. Add OCSP extensions.
454 *) New function X509_signature_print() to remove duplication in some
458 *) Add a special meaning when SET OF and SEQUENCE OF flags are both
459 set (this was treated exactly the same as SET OF previously). This
460 is used to reorder the STACK representing the structure to match the
461 encoding. This will be used to get round a problem where a PKCS7
462 structure which was signed could not be verified because the STACK
463 order did not reflect the encoded order.
466 *) Reimplement the OCSP ASN1 module using the new code.
469 *) Update the X509V3 code to permit the use of an ASN1_ITEM structure
470 for its ASN1 operations. The old style function pointers still exist
471 for now but they will eventually go away.
474 *) Merge in replacement ASN1 code from the ASN1 branch. This almost
475 completely replaces the old ASN1 functionality with a table driven
476 encoder and decoder which interprets an ASN1_ITEM structure describing
477 the ASN1 module. Compatibility with the existing ASN1 API (i2d,d2i) is
478 largely maintained. Almost all of the old asn1_mac.h macro based ASN1
479 has also been converted to the new form.
482 *) Change BN_mod_exp_recp so that negative moduli are tolerated
483 (the sign is ignored). Similarly, ignore the sign in BN_MONT_CTX_set
484 so that BN_mod_exp_mont and BN_mod_exp_mont_word work
488 *) Fix BN_uadd and BN_usub: Always return non-negative results instead
489 of not touching the result's sign bit.
492 *) BN_div bugfix: If the result is 0, the sign (res->neg) must not be
496 *) Changed the LHASH code to use prototypes for callbacks, and created
497 macros to declare and implement thin (optionally static) functions
498 that provide type-safety and avoid function pointer casting for the
499 type-specific callbacks.
502 *) Use better test patterns in bntest.
505 *) Added Kerberos Cipher Suites to be used with TLS, as written in
507 [Veers Staats <staatsvr@asc.hpc.mil>,
508 Jeffrey Altman <jaltman@columbia.edu>, via Richard Levitte]
510 *) rand_win.c fix for Borland C.
513 *) BN_rshift bugfix for n == 0.
516 *) Reformat the FAQ so the different questions and answers can be divided
517 in sections depending on the subject.
520 *) Have the zlib compression code load ZLIB.DLL dynamically under
524 *) New function BN_mod_sqrt for computing square roots modulo a prime
525 (using the probabilistic Tonelli-Shanks algorithm unless
526 p == 3 (mod 4) or p == 5 (mod 8), which are cases that can
527 be handled deterministically).
528 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
530 *) Store verify_result within SSL_SESSION also for client side to
531 avoid potential security hole. (Re-used sessions on the client side
532 always resulted in verify_result==X509_V_OK, not using the original
533 result of the server certificate verification.)
536 *) Make BN_mod_inverse faster by explicitly handling small quotients
537 in the Euclid loop. (Speed gain about 20% for small moduli [256 or
538 512 bits], about 30% for larger ones [1024 or 2048 bits].)
541 *) Fix ssl3_pending: If the record in s->s3->rrec is not of type
542 SSL3_RT_APPLICATION_DATA, return 0.
543 Similarly, change ssl2_pending to return 0 if SSL_in_init(s) is true.
547 Both ssl2_peek and ssl3_peek, which were totally broken in earlier
548 releases, have been re-implemented by renaming the previous
549 implementations of ssl2_read and ssl3_read to ssl2_read_internal
550 and ssl3_read_internal, respectively, and adding 'peek' parameters
551 to them. The new ssl[23]_{read,peek} functions are calls to
552 ssl[23]_read_internal with the 'peek' flag set appropriately.
553 A 'peek' parameter has also been added to ssl3_read_bytes, which
554 does the actual work for ssl3_read_internal.
557 *) New function BN_kronecker.
560 *) Fix BN_gcd so that it works on negative inputs; the result is
561 positive unless both parameters are zero.
562 Previously something reasonably close to an infinite loop was
563 possible because numbers could be growing instead of shrinking
564 in the implementation of Euclid's algorithm.
567 *) Fix BN_is_word() and BN_is_one() macros to take into account the
568 sign of the number in question.
570 Fix BN_is_word(a,w) to work correctly for w == 0.
572 The old BN_is_word(a,w) macro is now called BN_abs_is_word(a,w)
573 because its test if the absolute value of 'a' equals 'w'.
574 Note that BN_abs_is_word does *not* handle w == 0 reliably;
575 it exists mostly for use in the implementations of BN_is_zero(),
576 BN_is_one(), and BN_is_word().
579 *) Initialise "ex_data" member of RSA/DSA/DH structures prior to calling
580 the method-specific "init()" handler. Also clean up ex_data after
581 calling the method-specific "finish()" handler. Previously, this was
582 happening the other way round.
585 *) New function BN_swap.
588 *) Use BN_nnmod instead of BN_mod in crypto/bn/bn_exp.c so that
589 the exponentiation functions are more likely to produce reasonable
590 results on negative inputs.
593 *) Change BN_mod_mul so that the result is always non-negative.
594 Previously, it could be negative if one of the factors was negative;
595 I don't think anyone really wanted that behaviour.
598 *) Move BN_mod_... functions into new file crypto/bn/bn_mod.c
599 (except for exponentiation, which stays in crypto/bn/bn_exp.c,
600 and BN_mod_mul_reciprocal, which stays in crypto/bn/bn_recp.c)
601 and add new functions:
614 These functions always generate non-negative results.
616 BN_nnmod otherwise is like BN_mod (if BN_mod computes a remainder r
617 such that |m| < r < 0, BN_nnmod will output rem + |m| instead).
619 BN_mod_XXX_quick(r, a, [b,] m) generates the same result as
620 BN_mod_XXX(r, a, [b,] m, ctx), but requires that a [and b]
622 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
624 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
625 was actually never needed) and in BN_mul(). The removal in BN_mul()
626 required a small change in bn_mul_part_recursive() and the addition
627 of the functions bn_cmp_part_words(), bn_sub_part_words() and
628 bn_add_part_words(), which do the same thing as bn_cmp_words(),
629 bn_sub_words() and bn_add_words() except they take arrays with
633 *) In 'openssl passwd', verify passwords read from the terminal
634 unless the '-salt' option is used (which usually means that
635 verification would just waste user's time since the resulting
636 hash is going to be compared with some given password hash)
637 or the new '-noverify' option is used.
639 This is an incompatible change, but it does not affect
640 non-interactive use of 'openssl passwd' (passwords on the command
641 line, '-stdin' option, '-in ...' option) and thus should not
645 *) Remove all references to RSAref, since there's no more need for it.
648 *) Increase BN_CTX_NUM (the number of BIGNUMs in a BN_CTX) to 16.
649 The previous value, 12, was not always sufficient for BN_mod_exp().
652 *) Make DSO load along a path given through an environment variable
653 (SHLIB_PATH) with shl_load().
656 *) Constify the ENGINE code as a result of BIGNUM constification.
657 Also constify the RSA code and most things related to it. In a
658 few places, most notable in the depth of the ASN.1 code, ugly
659 casts back to non-const were required (to be solved at a later
663 *) Make it so the openssl application has all engines loaded by default.
666 *) Constify the BIGNUM routines a little more.
669 *) Make sure that shared libraries get the internal name engine with
670 the full version number and not just 0. This should mark the
671 shared libraries as not backward compatible. Of course, this should
672 be changed again when we can guarantee backward binary compatibility.
675 *) Add the following functions:
681 ENGINE_load_builtin_engines()
683 That way, an application can itself choose if external engines that
684 are built-in in OpenSSL shall ever be used or not. The benefit is
685 that applications won't have to be linked with libdl or other dso
686 libraries unless it's really needed.
688 Changed 'openssl engine' to load all engines on demand.
689 Changed the engine header files to avoid the duplication of some
690 declarations (they differed!).
693 *) 'openssl engine' can now list capabilities.
696 *) Better error reporting in 'openssl engine'.
699 *) Never call load_dh_param(NULL) in s_server.
702 *) Add engine application. It can currently list engines by name and
703 identity, and test if they are actually available.
706 *) Add support for shared libraries under Irix.
707 [Albert Chin-A-Young <china@thewrittenword.com>]
709 *) Improve RPM specification file by forcing symbolic linking and making
710 sure the installed documentation is also owned by root.root.
711 [Damien Miller <djm@mindrot.org>]
713 *) Add configuration option to build on Linux on both big-endian and
715 [Ralf Baechle <ralf@uni-koblenz.de>]
717 *) Give the OpenSSL applications more possibilities to make use of
718 keys (public as well as private) handled by engines.
721 *) Add OCSP code that comes from CertCo.
724 *) Add VMS support for the Rijndael code.
727 *) Added untested support for Nuron crypto accelerator.
730 *) Add support for external cryptographic devices. This code was
731 previously distributed separately as the "engine" branch.
732 [Geoff Thorpe, Richard Levitte]
734 *) Rework the filename-translation in the DSO code. It is now possible to
735 have far greater control over how a "name" is turned into a filename
736 depending on the operating environment and any oddities about the
737 different shared library filenames on each system.
740 *) Support threads on FreeBSD-elf in Configure.
743 *) Add the possibility to create shared libraries on HP-UX
746 *) Fix for SHA1 assembly problem with MASM: it produces
747 warnings about corrupt line number information when assembling
748 with debugging information. This is caused by the overlapping
750 [Bernd Matthes <mainbug@celocom.de>, Steve Henson]
753 NCONF_get_number() has no error checking at all. As a replacement,
754 NCONF_get_number_e() is defined (_e for "error checking") and is
755 promoted strongly. The old NCONF_get_number is kept around for
756 binary backward compatibility.
757 Make it possible for methods to load from something other than a BIO,
758 by providing a function pointer that is given a name instead of a BIO.
759 For example, this could be used to load configuration data from an
763 *) Fix typo in get_cert_by_subject() in by_dir.c
764 [Jean-Marc Desperrier <jean-marc.desperrier@certplus.com>]
766 *) Rework the system to generate shared libraries:
768 - Make note of the expected extension for the shared libraries and
769 if there is a need for symbolic links from for example libcrypto.so.0
770 to libcrypto.so.0.9.7. There is extended info in Configure for
773 - Make as few rebuilds of the shared libraries as possible.
775 - Still avoid linking the OpenSSL programs with the shared libraries.
777 - When installing, install the shared libraries separately from the
781 *) Fix for non blocking accept BIOs. Added new I/O special reason
782 BIO_RR_ACCEPT to cover this case. Previously use of accept BIOs
783 with non blocking I/O was not possible because no retry code was
784 implemented. Also added new SSL code SSL_WANT_ACCEPT to cover
788 *) Added the beginnings of Rijndael support.
791 *) Fix for bug in DirectoryString mask setting. Add support for
792 X509_NAME_print_ex() in 'req' and X509_print_ex() function
793 to allow certificate printing to more controllable, additional
794 'certopt' option to 'x509' to allow new printing options to be
798 *) Clean old EAY MD5 hack from e_os.h.
801 *) Fix SSL_CTX_set_read_ahead macro to actually use its argument.
803 Copy SSL_CTX's read_ahead flag to SSL object directly in SSL_new
804 and not in SSL_clear because the latter is also used by the
805 accept/connect functions; previously, the settings made by
806 SSL_set_read_ahead would be lost during the handshake.
807 [Bodo Moeller; problems reported by Anders Gertz <gertz@epact.se>]
809 *) Correct util/mkdef.pl to be selective about disabled algorithms.
810 Previously, it would create entries for disableed algorithms no
814 Changes between 0.9.5a and 0.9.6 [24 Sep 2000]
816 *) In ssl23_get_client_hello, generate an error message when faced
817 with an initial SSL 3.0/TLS record that is too small to contain the
818 first two bytes of the ClientHello message, i.e. client_version.
819 (Note that this is a pathologic case that probably has never happened
820 in real life.) The previous approach was to use the version number
821 from the record header as a substitute; but our protocol choice
822 should not depend on that one because it is not authenticated
823 by the Finished messages.
826 *) More robust randomness gathering functions for Windows.
827 [Jeffrey Altman <jaltman@columbia.edu>]
829 *) For compatibility reasons if the flag X509_V_FLAG_ISSUER_CHECK is
830 not set then we don't setup the error code for issuer check errors
831 to avoid possibly overwriting other errors which the callback does
832 handle. If an application does set the flag then we assume it knows
833 what it is doing and can handle the new informational codes
837 *) Fix for a nasty bug in ASN1_TYPE handling. ASN1_TYPE is used for
838 a general "ANY" type, as such it should be able to decode anything
839 including tagged types. However it didn't check the class so it would
840 wrongly interpret tagged types in the same way as their universal
841 counterpart and unknown types were just rejected. Changed so that the
842 tagged and unknown types are handled in the same way as a SEQUENCE:
843 that is the encoding is stored intact. There is also a new type
844 "V_ASN1_OTHER" which is used when the class is not universal, in this
845 case we have no idea what the actual type is so we just lump them all
849 *) On VMS, stdout may very well lead to a file that is written to
850 in a record-oriented fashion. That means that every write() will
851 write a separate record, which will be read separately by the
852 programs trying to read from it. This can be very confusing.
854 The solution is to put a BIO filter in the way that will buffer
855 text until a linefeed is reached, and then write everything a
856 line at a time, so every record written will be an actual line,
857 not chunks of lines and not (usually doesn't happen, but I've
858 seen it once) several lines in one record. BIO_f_linebuffer() is
861 Currently, it's a VMS-only method, because that's where it has
862 been tested well enough.
865 *) Remove 'optimized' squaring variant in BN_mod_mul_montgomery,
866 it can return incorrect results.
867 (Note: The buggy variant was not enabled in OpenSSL 0.9.5a,
868 but it was in 0.9.6-beta[12].)
871 *) Disable the check for content being present when verifying detached
872 signatures in pk7_smime.c. Some versions of Netscape (wrongly)
873 include zero length content when signing messages.
876 *) New BIO_shutdown_wr macro, which invokes the BIO_C_SHUTDOWN_WR
877 BIO_ctrl (for BIO pairs).
880 *) Add DSO method for VMS.
883 *) Bug fix: Montgomery multiplication could produce results with the
887 *) Add RPM specification openssl.spec and modify it to build three
888 packages. The default package contains applications, application
889 documentation and run-time libraries. The devel package contains
890 include files, static libraries and function documentation. The
891 doc package contains the contents of the doc directory. The original
892 openssl.spec was provided by Damien Miller <djm@mindrot.org>.
895 *) Add a large number of documentation files for many SSL routines.
896 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
898 *) Add a configuration entry for Sony News 4.
899 [NAKAJI Hiroyuki <nakaji@tutrp.tut.ac.jp>]
901 *) Don't set the two most significant bits to one when generating a
902 random number < q in the DSA library.
905 *) New SSL API mode 'SSL_MODE_AUTO_RETRY'. This disables the default
906 behaviour that SSL_read may result in SSL_ERROR_WANT_READ (even if
907 the underlying transport is blocking) if a handshake took place.
908 (The default behaviour is needed by applications such as s_client
909 and s_server that use select() to determine when to use SSL_read;
910 but for applications that know in advance when to expect data, it
911 just makes things more complicated.)
914 *) Add RAND_egd_bytes(), which gives control over the number of bytes read
918 *) Add a few more EBCDIC conditionals that make `req' and `x509'
919 work better on such systems.
920 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
922 *) Add two demo programs for PKCS12_parse() and PKCS12_create().
923 Update PKCS12_parse() so it copies the friendlyName and the
924 keyid to the certificates aux info.
927 *) Fix bug in PKCS7_verify() which caused an infinite loop
928 if there was more than one signature.
929 [Sven Uszpelkat <su@celocom.de>]
931 *) Major change in util/mkdef.pl to include extra information
932 about each symbol, as well as presentig variables as well
933 as functions. This change means that there's n more need
934 to rebuild the .num files when some algorithms are excluded.
937 *) Allow the verify time to be set by an application,
938 rather than always using the current time.
941 *) Phase 2 verify code reorganisation. The certificate
942 verify code now looks up an issuer certificate by a
943 number of criteria: subject name, authority key id
944 and key usage. It also verifies self signed certificates
945 by the same criteria. The main comparison function is
946 X509_check_issued() which performs these checks.
948 Lot of changes were necessary in order to support this
949 without completely rewriting the lookup code.
951 Authority and subject key identifier are now cached.
953 The LHASH 'certs' is X509_STORE has now been replaced
954 by a STACK_OF(X509_OBJECT). This is mainly because an
955 LHASH can't store or retrieve multiple objects with
958 As a result various functions (which were all internal
959 use only) have changed to handle the new X509_STORE
960 structure. This will break anything that messed round
961 with X509_STORE internally.
963 The functions X509_STORE_add_cert() now checks for an
964 exact match, rather than just subject name.
966 The X509_STORE API doesn't directly support the retrieval
967 of multiple certificates matching a given criteria, however
968 this can be worked round by performing a lookup first
969 (which will fill the cache with candidate certificates)
970 and then examining the cache for matches. This is probably
971 the best we can do without throwing out X509_LOOKUP
972 entirely (maybe later...).
974 The X509_VERIFY_CTX structure has been enhanced considerably.
976 All certificate lookup operations now go via a get_issuer()
977 callback. Although this currently uses an X509_STORE it
978 can be replaced by custom lookups. This is a simple way
979 to bypass the X509_STORE hackery necessary to make this
980 work and makes it possible to use more efficient techniques
981 in future. A very simple version which uses a simple
982 STACK for its trusted certificate store is also provided
983 using X509_STORE_CTX_trusted_stack().
985 The verify_cb() and verify() callbacks now have equivalents
986 in the X509_STORE_CTX structure.
988 X509_STORE_CTX also has a 'flags' field which can be used
989 to customise the verify behaviour.
992 *) Add new PKCS#7 signing option PKCS7_NOSMIMECAP which
993 excludes S/MIME capabilities.
996 *) When a certificate request is read in keep a copy of the
997 original encoding of the signed data and use it when outputing
998 again. Signatures then use the original encoding rather than
999 a decoded, encoded version which may cause problems if the
1000 request is improperly encoded.
1003 *) For consistency with other BIO_puts implementations, call
1004 buffer_write(b, ...) directly in buffer_puts instead of calling
1007 In BIO_puts, increment b->num_write as in BIO_write.
1008 [Peter.Sylvester@EdelWeb.fr]
1010 *) Fix BN_mul_word for the case where the word is 0. (We have to use
1011 BN_zero, we may not return a BIGNUM with an array consisting of
1015 *) Avoid calling abort() from within the library when problems are
1016 detected, except if preprocessor symbols have been defined
1017 (such as REF_CHECK, BN_DEBUG etc.).
1020 *) New openssl application 'rsautl'. This utility can be
1021 used for low level RSA operations. DER public key
1022 BIO/fp routines also added.
1025 *) New Configure entry and patches for compiling on QNX 4.
1026 [Andreas Schneider <andreas@ds3.etech.fh-hamburg.de>]
1028 *) A demo state-machine implementation was sponsored by
1029 Nuron (http://www.nuron.com/) and is now available in
1030 demos/state_machine.
1033 *) New options added to the 'dgst' utility for signature
1034 generation and verification.
1037 *) Unrecognized PKCS#7 content types are now handled via a
1038 catch all ASN1_TYPE structure. This allows unsupported
1039 types to be stored as a "blob" and an application can
1040 encode and decode it manually.
1043 *) Fix various signed/unsigned issues to make a_strex.c
1045 [Oscar Jacobsson <oscar.jacobsson@celocom.com>]
1047 *) ASN1 fixes. i2d_ASN1_OBJECT was not returning the correct
1048 length if passed a buffer. ASN1_INTEGER_to_BN failed
1049 if passed a NULL BN and its argument was negative.
1050 [Steve Henson, pointed out by Sven Heiberg <sven@tartu.cyber.ee>]
1052 *) Modification to PKCS#7 encoding routines to output definite
1053 length encoding. Since currently the whole structures are in
1054 memory there's not real point in using indefinite length
1055 constructed encoding. However if OpenSSL is compiled with
1056 the flag PKCS7_INDEFINITE_ENCODING the old form is used.
1059 *) Added BIO_vprintf() and BIO_vsnprintf().
1062 *) Added more prefixes to parse for in the the strings written
1063 through a logging bio, to cover all the levels that are available
1064 through syslog. The prefixes are now:
1066 PANIC, EMERG, EMR => LOG_EMERG
1067 ALERT, ALR => LOG_ALERT
1068 CRIT, CRI => LOG_CRIT
1069 ERROR, ERR => LOG_ERR
1070 WARNING, WARN, WAR => LOG_WARNING
1071 NOTICE, NOTE, NOT => LOG_NOTICE
1072 INFO, INF => LOG_INFO
1073 DEBUG, DBG => LOG_DEBUG
1075 and as before, if none of those prefixes are present at the
1076 beginning of the string, LOG_ERR is chosen.
1078 On Win32, the LOG_* levels are mapped according to this:
1080 LOG_EMERG, LOG_ALERT, LOG_CRIT, LOG_ERR => EVENTLOG_ERROR_TYPE
1081 LOG_WARNING => EVENTLOG_WARNING_TYPE
1082 LOG_NOTICE, LOG_INFO, LOG_DEBUG => EVENTLOG_INFORMATION_TYPE
1086 *) Made it possible to reconfigure with just the configuration
1087 argument "reconf" or "reconfigure". The command line arguments
1088 are stored in Makefile.ssl in the variable CONFIGURE_ARGS,
1089 and are retrieved from there when reconfiguring.
1093 [Assar Westerlund <assar@sics.se>, Richard Levitte]
1095 *) Add the arguments -CAfile and -CApath to the pkcs12 utility.
1098 *) The obj_dat.pl script was messing up the sorting of object
1099 names. The reason was that it compared the quoted version
1100 of strings as a result "OCSP" > "OCSP Signing" because
1101 " > SPACE. Changed script to store unquoted versions of
1102 names and add quotes on output. It was also omitting some
1103 names from the lookup table if they were given a default
1104 value (that is if SN is missing it is given the same
1105 value as LN and vice versa), these are now added on the
1106 grounds that if an object has a name we should be able to
1107 look it up. Finally added warning output when duplicate
1108 short or long names are found.
1111 *) Changes needed for Tandem NSK.
1112 [Scott Uroff <scott@xypro.com>]
1114 *) Fix SSL 2.0 rollback checking: Due to an off-by-one error in
1115 RSA_padding_check_SSLv23(), special padding was never detected
1116 and thus the SSL 3.0/TLS 1.0 countermeasure against protocol
1117 version rollback attacks was not effective.
1119 In s23_clnt.c, don't use special rollback-attack detection padding
1120 (RSA_SSLV23_PADDING) if SSL 2.0 is the only protocol enabled in the
1121 client; similarly, in s23_srvr.c, don't do the rollback check if
1122 SSL 2.0 is the only protocol enabled in the server.
1125 *) Make it possible to get hexdumps of unprintable data with 'openssl
1126 asn1parse'. By implication, the functions ASN1_parse_dump() and
1127 BIO_dump_indent() are added.
1130 *) New functions ASN1_STRING_print_ex() and X509_NAME_print_ex()
1131 these print out strings and name structures based on various
1132 flags including RFC2253 support and proper handling of
1133 multibyte characters. Added options to the 'x509' utility
1134 to allow the various flags to be set.
1137 *) Various fixes to use ASN1_TIME instead of ASN1_UTCTIME.
1138 Also change the functions X509_cmp_current_time() and
1139 X509_gmtime_adj() work with an ASN1_TIME structure,
1140 this will enable certificates using GeneralizedTime in validity
1141 dates to be checked.
1144 *) Make the NEG_PUBKEY_BUG code (which tolerates invalid
1145 negative public key encodings) on by default,
1146 NO_NEG_PUBKEY_BUG can be set to disable it.
1149 *) New function c2i_ASN1_OBJECT() which acts on ASN1_OBJECT
1150 content octets. An i2c_ASN1_OBJECT is unnecessary because
1151 the encoding can be trivially obtained from the structure.
1154 *) crypto/err.c locking bugfix: Use write locks (CRYPTO_w_[un]lock),
1155 not read locks (CRYPTO_r_[un]lock).
1158 *) A first attempt at creating official support for shared
1159 libraries through configuration. I've kept it so the
1160 default is static libraries only, and the OpenSSL programs
1161 are always statically linked for now, but there are
1162 preparations for dynamic linking in place.
1163 This has been tested on Linux and True64.
1166 *) Randomness polling function for Win9x, as described in:
1167 Peter Gutmann, Software Generation of Practically Strong
1171 *) Fix so PRNG is seeded in req if using an already existing
1175 *) New options to smime application. -inform and -outform
1176 allow alternative formats for the S/MIME message including
1177 PEM and DER. The -content option allows the content to be
1178 specified separately. This should allow things like Netscape
1179 form signing output easier to verify.
1182 *) Fix the ASN1 encoding of tags using the 'long form'.
1185 *) New ASN1 functions, i2c_* and c2i_* for INTEGER and BIT
1186 STRING types. These convert content octets to and from the
1187 underlying type. The actual tag and length octets are
1188 already assumed to have been read in and checked. These
1189 are needed because all other string types have virtually
1190 identical handling apart from the tag. By having versions
1191 of the ASN1 functions that just operate on content octets
1192 IMPLICIT tagging can be handled properly. It also allows
1193 the ASN1_ENUMERATED code to be cut down because ASN1_ENUMERATED
1194 and ASN1_INTEGER are identical apart from the tag.
1197 *) Change the handling of OID objects as follows:
1199 - New object identifiers are inserted in objects.txt, following
1200 the syntax given in objects.README.
1201 - objects.pl is used to process obj_mac.num and create a new
1203 - obj_dat.pl is used to create a new obj_dat.h, using the data in
1206 This is currently kind of a hack, and the perl code in objects.pl
1207 isn't very elegant, but it works as I intended. The simplest way
1208 to check that it worked correctly is to look in obj_dat.h and
1209 check the array nid_objs and make sure the objects haven't moved
1210 around (this is important!). Additions are OK, as well as
1211 consistent name changes.
1214 *) Add BSD-style MD5-based passwords to 'openssl passwd' (option '-1').
1217 *) Addition of the command line parameter '-rand file' to 'openssl req'.
1218 The given file adds to whatever has already been seeded into the
1219 random pool through the RANDFILE configuration file option or
1220 environment variable, or the default random state file.
1223 *) mkstack.pl now sorts each macro group into lexical order.
1224 Previously the output order depended on the order the files
1225 appeared in the directory, resulting in needless rewriting
1229 *) Patches to make OpenSSL compile under Win32 again. Mostly
1230 work arounds for the VC++ problem that it treats func() as
1231 func(void). Also stripped out the parts of mkdef.pl that
1232 added extra typesafe functions: these no longer exist.
1235 *) Reorganisation of the stack code. The macros are now all
1236 collected in safestack.h . Each macro is defined in terms of
1237 a "stack macro" of the form SKM_<name>(type, a, b). The
1238 DEBUG_SAFESTACK is now handled in terms of function casts,
1239 this has the advantage of retaining type safety without the
1240 use of additional functions. If DEBUG_SAFESTACK is not defined
1241 then the non typesafe macros are used instead. Also modified the
1242 mkstack.pl script to handle the new form. Needs testing to see
1243 if which (if any) compilers it chokes and maybe make DEBUG_SAFESTACK
1244 the default if no major problems. Similar behaviour for ASN1_SET_OF
1245 and PKCS12_STACK_OF.
1248 *) When some versions of IIS use the 'NET' form of private key the
1249 key derivation algorithm is different. Normally MD5(password) is
1250 used as a 128 bit RC4 key. In the modified case
1251 MD5(MD5(password) + "SGCKEYSALT") is used insted. Added some
1252 new functions i2d_RSA_NET(), d2i_RSA_NET() etc which are the same
1253 as the old Netscape_RSA functions except they have an additional
1254 'sgckey' parameter which uses the modified algorithm. Also added
1255 an -sgckey command line option to the rsa utility. Thanks to
1256 Adrian Peck <bertie@ncipher.com> for posting details of the modified
1257 algorithm to openssl-dev.
1260 *) The evp_local.h macros were using 'c.##kname' which resulted in
1261 invalid expansion on some systems (SCO 5.0.5 for example).
1262 Corrected to 'c.kname'.
1263 [Phillip Porch <root@theporch.com>]
1265 *) New X509_get1_email() and X509_REQ_get1_email() functions that return
1266 a STACK of email addresses from a certificate or request, these look
1267 in the subject name and the subject alternative name extensions and
1268 omit any duplicate addresses.
1271 *) Re-implement BN_mod_exp2_mont using independent (and larger) windows.
1272 This makes DSA verification about 2 % faster.
1275 *) Increase maximum window size in BN_mod_exp_... to 6 bits instead of 5
1276 (meaning that now 2^5 values will be precomputed, which is only 4 KB
1277 plus overhead for 1024 bit moduli).
1278 This makes exponentiations about 0.5 % faster for 1024 bit
1279 exponents (as measured by "openssl speed rsa2048").
1282 *) Rename memory handling macros to avoid conflicts with other
1284 Malloc => OPENSSL_malloc
1285 Malloc_locked => OPENSSL_malloc_locked
1286 Realloc => OPENSSL_realloc
1287 Free => OPENSSL_free
1290 *) New function BN_mod_exp_mont_word for small bases (roughly 15%
1291 faster than BN_mod_exp_mont, i.e. 7% for a full DH exchange).
1294 *) CygWin32 support.
1295 [John Jarvie <jjarvie@newsguy.com>]
1297 *) The type-safe stack code has been rejigged. It is now only compiled
1298 in when OpenSSL is configured with the DEBUG_SAFESTACK option and
1299 by default all type-specific stack functions are "#define"d back to
1300 standard stack functions. This results in more streamlined output
1301 but retains the type-safety checking possibilities of the original
1305 *) The STACK code has been cleaned up, and certain type declarations
1306 that didn't make a lot of sense have been brought in line. This has
1307 also involved a cleanup of sorts in safestack.h to more correctly
1308 map type-safe stack functions onto their plain stack counterparts.
1309 This work has also resulted in a variety of "const"ifications of
1310 lots of the code, especially "_cmp" operations which should normally
1311 be prototyped with "const" parameters anyway.
1314 *) When generating bytes for the first time in md_rand.c, 'stir the pool'
1315 by seeding with STATE_SIZE dummy bytes (with zero entropy count).
1316 (The PRNG state consists of two parts, the large pool 'state' and 'md',
1317 where all of 'md' is used each time the PRNG is used, but 'state'
1318 is used only indexed by a cyclic counter. As entropy may not be
1319 well distributed from the beginning, 'md' is important as a
1320 chaining variable. However, the output function chains only half
1321 of 'md', i.e. 80 bits. ssleay_rand_add, on the other hand, chains
1322 all of 'md', and seeding with STATE_SIZE dummy bytes will result
1323 in all of 'state' being rewritten, with the new values depending
1324 on virtually all of 'md'. This overcomes the 80 bit limitation.)
1327 *) In ssl/s2_clnt.c and ssl/s3_clnt.c, call ERR_clear_error() when
1328 the handshake is continued after ssl_verify_cert_chain();
1329 otherwise, if SSL_VERIFY_NONE is set, remaining error codes
1330 can lead to 'unexplainable' connection aborts later.
1331 [Bodo Moeller; problem tracked down by Lutz Jaenicke]
1333 *) Major EVP API cipher revision.
1334 Add hooks for extra EVP features. This allows various cipher
1335 parameters to be set in the EVP interface. Support added for variable
1336 key length ciphers via the EVP_CIPHER_CTX_set_key_length() function and
1337 setting of RC2 and RC5 parameters.
1339 Modify EVP_OpenInit() and EVP_SealInit() to cope with variable key length
1342 Remove lots of duplicated code from the EVP library. For example *every*
1343 cipher init() function handles the 'iv' in the same way according to the
1344 cipher mode. They also all do nothing if the 'key' parameter is NULL and
1345 for CFB and OFB modes they zero ctx->num.
1347 New functionality allows removal of S/MIME code RC2 hack.
1349 Most of the routines have the same form and so can be declared in terms
1352 By shifting this to the top level EVP_CipherInit() it can be removed from
1353 all individual ciphers. If the cipher wants to handle IVs or keys
1354 differently it can set the EVP_CIPH_CUSTOM_IV or EVP_CIPH_ALWAYS_CALL_INIT
1357 Change lots of functions like EVP_EncryptUpdate() to now return a
1358 value: although software versions of the algorithms cannot fail
1359 any installed hardware versions can.
1362 *) Implement SSL_OP_TLS_ROLLBACK_BUG: In ssl3_get_client_key_exchange, if
1363 this option is set, tolerate broken clients that send the negotiated
1364 protocol version number instead of the requested protocol version
1368 *) Call dh_tmp_cb (set by ..._TMP_DH_CB) with correct 'is_export' flag;
1369 i.e. non-zero for export ciphersuites, zero otherwise.
1370 Previous versions had this flag inverted, inconsistent with
1371 rsa_tmp_cb (..._TMP_RSA_CB).
1372 [Bodo Moeller; problem reported by Amit Chopra]
1374 *) Add missing DSA library text string. Work around for some IIS
1375 key files with invalid SEQUENCE encoding.
1378 *) Add a document (doc/standards.txt) that list all kinds of standards
1379 and so on that are implemented in OpenSSL.
1382 *) Enhance c_rehash script. Old version would mishandle certificates
1383 with the same subject name hash and wouldn't handle CRLs at all.
1384 Added -fingerprint option to crl utility, to support new c_rehash
1388 *) Eliminate non-ANSI declarations in crypto.h and stack.h.
1391 *) Fix for SSL server purpose checking. Server checking was
1392 rejecting certificates which had extended key usage present
1393 but no ssl client purpose.
1394 [Steve Henson, reported by Rene Grosser <grosser@hisolutions.com>]
1396 *) Make PKCS#12 code work with no password. The PKCS#12 spec
1397 is a little unclear about how a blank password is handled.
1398 Since the password in encoded as a BMPString with terminating
1399 double NULL a zero length password would end up as just the
1400 double NULL. However no password at all is different and is
1401 handled differently in the PKCS#12 key generation code. NS
1402 treats a blank password as zero length. MSIE treats it as no
1403 password on export: but it will try both on import. We now do
1404 the same: PKCS12_parse() tries zero length and no password if
1405 the password is set to "" or NULL (NULL is now a valid password:
1406 it wasn't before) as does the pkcs12 application.
1409 *) Bugfixes in apps/x509.c: Avoid a memory leak; and don't use
1410 perror when PEM_read_bio_X509_REQ fails, the error message must
1411 be obtained from the error queue.
1414 *) Avoid 'thread_hash' memory leak in crypto/err/err.c by freeing
1415 it in ERR_remove_state if appropriate, and change ERR_get_state
1416 accordingly to avoid race conditions (this is necessary because
1417 thread_hash is no longer constant once set).
1420 *) Bugfix for linux-elf makefile.one.
1423 *) RSA_get_default_method() will now cause a default
1424 RSA_METHOD to be chosen if one doesn't exist already.
1425 Previously this was only set during a call to RSA_new()
1426 or RSA_new_method(NULL) meaning it was possible for
1427 RSA_get_default_method() to return NULL.
1430 *) Added native name translation to the existing DSO code
1431 that will convert (if the flag to do so is set) filenames
1432 that are sufficiently small and have no path information
1433 into a canonical native form. Eg. "blah" converted to
1434 "libblah.so" or "blah.dll" etc.
1437 *) New function ERR_error_string_n(e, buf, len) which is like
1438 ERR_error_string(e, buf), but writes at most 'len' bytes
1439 including the 0 terminator. For ERR_error_string_n, 'buf'
1441 [Damien Miller <djm@mindrot.org>, Bodo Moeller]
1443 *) CONF library reworked to become more general. A new CONF
1444 configuration file reader "class" is implemented as well as a
1445 new functions (NCONF_*, for "New CONF") to handle it. The now
1446 old CONF_* functions are still there, but are reimplemented to
1447 work in terms of the new functions. Also, a set of functions
1448 to handle the internal storage of the configuration data is
1449 provided to make it easier to write new configuration file
1450 reader "classes" (I can definitely see something reading a
1451 configuration file in XML format, for example), called _CONF_*,
1452 or "the configuration storage API"...
1454 The new configuration file reading functions are:
1456 NCONF_new, NCONF_free, NCONF_load, NCONF_load_fp, NCONF_load_bio,
1457 NCONF_get_section, NCONF_get_string, NCONF_get_numbre
1459 NCONF_default, NCONF_WIN32
1461 NCONF_dump_fp, NCONF_dump_bio
1463 NCONF_default and NCONF_WIN32 are method (or "class") choosers,
1464 NCONF_new creates a new CONF object. This works in the same way
1465 as other interfaces in OpenSSL, like the BIO interface.
1466 NCONF_dump_* dump the internal storage of the configuration file,
1467 which is useful for debugging. All other functions take the same
1468 arguments as the old CONF_* functions wth the exception of the
1469 first that must be a `CONF *' instead of a `LHASH *'.
1471 To make it easer to use the new classes with the old CONF_* functions,
1472 the function CONF_set_default_method is provided.
1475 *) Add '-tls1' option to 'openssl ciphers', which was already
1476 mentioned in the documentation but had not been implemented.
1477 (This option is not yet really useful because even the additional
1478 experimental TLS 1.0 ciphers are currently treated as SSL 3.0 ciphers.)
1481 *) Initial DSO code added into libcrypto for letting OpenSSL (and
1482 OpenSSL-based applications) load shared libraries and bind to
1483 them in a portable way.
1484 [Geoff Thorpe, with contributions from Richard Levitte]
1486 Changes between 0.9.5 and 0.9.5a [1 Apr 2000]
1488 *) Make sure _lrotl and _lrotr are only used with MSVC.
1490 *) Use lock CRYPTO_LOCK_RAND correctly in ssleay_rand_status
1491 (the default implementation of RAND_status).
1493 *) Rename openssl x509 option '-crlext', which was added in 0.9.5,
1494 to '-clrext' (= clear extensions), as intended and documented.
1495 [Bodo Moeller; inconsistency pointed out by Michael Attili
1498 *) Fix for HMAC. It wasn't zeroing the rest of the block if the key length
1499 was larger than the MD block size.
1500 [Steve Henson, pointed out by Yost William <YostW@tce.com>]
1502 *) Modernise PKCS12_parse() so it uses STACK_OF(X509) for its ca argument
1503 fix a leak when the ca argument was passed as NULL. Stop X509_PUBKEY_set()
1504 using the passed key: if the passed key was a private key the result
1505 of X509_print(), for example, would be to print out all the private key
1509 *) des_quad_cksum() byte order bug fix.
1510 [Ulf Möller, using the problem description in krb4-0.9.7, where
1511 the solution is attributed to Derrick J Brashear <shadow@DEMENTIA.ORG>]
1513 *) Fix so V_ASN1_APP_CHOOSE works again: however its use is strongly
1515 [Steve Henson, pointed out by Brian Korver <briank@cs.stanford.edu>]
1517 *) For easily testing in shell scripts whether some command
1518 'openssl XXX' exists, the new pseudo-command 'openssl no-XXX'
1519 returns with exit code 0 iff no command of the given name is available.
1520 'no-XXX' is printed in this case, 'XXX' otherwise. In both cases,
1521 the output goes to stdout and nothing is printed to stderr.
1522 Additional arguments are always ignored.
1524 Since for each cipher there is a command of the same name,
1525 the 'no-cipher' compilation switches can be tested this way.
1527 ('openssl no-XXX' is not able to detect pseudo-commands such
1528 as 'quit', 'list-XXX-commands', or 'no-XXX' itself.)
1531 *) Update test suite so that 'make test' succeeds in 'no-rsa' configuration.
1534 *) For SSL_[CTX_]set_tmp_dh, don't create a DH key if SSL_OP_SINGLE_DH_USE
1535 is set; it will be thrown away anyway because each handshake creates
1537 ssl_cert_dup, which is used by SSL_new, now copies DH keys in addition
1538 to parameters -- in previous versions (since OpenSSL 0.9.3) the
1539 'default key' from SSL_CTX_set_tmp_dh would always be lost, meanining
1540 you effectivly got SSL_OP_SINGLE_DH_USE when using this macro.
1543 *) New s_client option -ign_eof: EOF at stdin is ignored, and
1544 'Q' and 'R' lose their special meanings (quit/renegotiate).
1545 This is part of what -quiet does; unlike -quiet, -ign_eof
1546 does not suppress any output.
1549 *) Add compatibility options to the purpose and trust code. The
1550 purpose X509_PURPOSE_ANY is "any purpose" which automatically
1551 accepts a certificate or CA, this was the previous behaviour,
1552 with all the associated security issues.
1554 X509_TRUST_COMPAT is the old trust behaviour: only and
1555 automatically trust self signed roots in certificate store. A
1556 new trust setting X509_TRUST_DEFAULT is used to specify that
1557 a purpose has no associated trust setting and it should instead
1558 use the value in the default purpose.
1561 *) Fix the PKCS#8 DSA private key code so it decodes keys again
1562 and fix a memory leak.
1565 *) In util/mkerr.pl (which implements 'make errors'), preserve
1566 reason strings from the previous version of the .c file, as
1567 the default to have only downcase letters (and digits) in
1568 automatically generated reasons codes is not always appropriate.
1571 *) In ERR_load_ERR_strings(), build an ERR_LIB_SYS error reason table
1572 using strerror. Previously, ERR_reason_error_string() returned
1573 library names as reason strings for SYSerr; but SYSerr is a special
1574 case where small numbers are errno values, not library numbers.
1577 *) Add '-dsaparam' option to 'openssl dhparam' application. This
1578 converts DSA parameters into DH parameters. (When creating parameters,
1579 DSA_generate_parameters is used.)
1582 *) Include 'length' (recommended exponent length) in C code generated
1583 by 'openssl dhparam -C'.
1586 *) The second argument to set_label in perlasm was already being used
1587 so couldn't be used as a "file scope" flag. Moved to third argument
1591 *) In PEM_ASN1_write_bio and some other functions, use RAND_pseudo_bytes
1592 instead of RAND_bytes for encryption IVs and salts.
1595 *) Include RAND_status() into RAND_METHOD instead of implementing
1596 it only for md_rand.c Otherwise replacing the PRNG by calling
1597 RAND_set_rand_method would be impossible.
1600 *) Don't let DSA_generate_key() enter an infinite loop if the random
1601 number generation fails.
1604 *) New 'rand' application for creating pseudo-random output.
1607 *) Added configuration support for Linux/IA64
1608 [Rolf Haberrecker <rolf@suse.de>]
1610 *) Assembler module support for Mingw32.
1613 *) Shared library support for HPUX (in shlib/).
1614 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE> and Anonymous]
1616 *) Shared library support for Solaris gcc.
1617 [Lutz Behnke <behnke@trustcenter.de>]
1619 Changes between 0.9.4 and 0.9.5 [28 Feb 2000]
1621 *) PKCS7_encrypt() was adding text MIME headers twice because they
1622 were added manually and by SMIME_crlf_copy().
1625 *) In bntest.c don't call BN_rand with zero bits argument.
1626 [Steve Henson, pointed out by Andrew W. Gray <agray@iconsinc.com>]
1628 *) BN_mul bugfix: In bn_mul_part_recursion() only the a>a[n] && b>b[n]
1629 case was implemented. This caused BN_div_recp() to fail occasionally.
1632 *) Add an optional second argument to the set_label() in the perl
1633 assembly language builder. If this argument exists and is set
1634 to 1 it signals that the assembler should use a symbol whose
1635 scope is the entire file, not just the current function. This
1636 is needed with MASM which uses the format label:: for this scope.
1637 [Steve Henson, pointed out by Peter Runestig <peter@runestig.com>]
1639 *) Change the ASN1 types so they are typedefs by default. Before
1640 almost all types were #define'd to ASN1_STRING which was causing
1641 STACK_OF() problems: you couldn't declare STACK_OF(ASN1_UTF8STRING)
1645 *) Change names of new functions to the new get1/get0 naming
1646 convention: After 'get1', the caller owns a reference count
1647 and has to call ..._free; 'get0' returns a pointer to some
1648 data structure without incrementing reference counters.
1649 (Some of the existing 'get' functions increment a reference
1650 counter, some don't.)
1651 Similarly, 'set1' and 'add1' functions increase reference
1652 counters or duplicate objects.
1655 *) Allow for the possibility of temp RSA key generation failure:
1656 the code used to assume it always worked and crashed on failure.
1659 *) Fix potential buffer overrun problem in BIO_printf().
1660 [Ulf Möller, using public domain code by Patrick Powell; problem
1661 pointed out by David Sacerdote <das33@cornell.edu>]
1663 *) Support EGD <http://www.lothar.com/tech/crypto/>. New functions
1664 RAND_egd() and RAND_status(). In the command line application,
1665 the EGD socket can be specified like a seed file using RANDFILE
1669 *) Allow the string CERTIFICATE to be tolerated in PKCS#7 structures.
1670 Some CAs (e.g. Verisign) distribute certificates in this form.
1673 *) Remove the SSL_ALLOW_ADH compile option and set the default cipher
1674 list to exclude them. This means that no special compilation option
1675 is needed to use anonymous DH: it just needs to be included in the
1679 *) Change the EVP_MD_CTX_type macro so its meaning consistent with
1680 EVP_MD_type. The old functionality is available in a new macro called
1681 EVP_MD_md(). Change code that uses it and update docs.
1684 *) ..._ctrl functions now have corresponding ..._callback_ctrl functions
1685 where the 'void *' argument is replaced by a function pointer argument.
1686 Previously 'void *' was abused to point to functions, which works on
1687 many platforms, but is not correct. As these functions are usually
1688 called by macros defined in OpenSSL header files, most source code
1689 should work without changes.
1692 *) <openssl/opensslconf.h> (which is created by Configure) now contains
1693 sections with information on -D... compiler switches used for
1694 compiling the library so that applications can see them. To enable
1695 one of these sections, a pre-processor symbol OPENSSL_..._DEFINES
1696 must be defined. E.g.,
1697 #define OPENSSL_ALGORITHM_DEFINES
1698 #include <openssl/opensslconf.h>
1699 defines all pertinent NO_<algo> symbols, such as NO_IDEA, NO_RSA, etc.
1700 [Richard Levitte, Ulf and Bodo Möller]
1702 *) Bugfix: Tolerate fragmentation and interleaving in the SSL 3/TLS
1706 *) Change the 'other' type in certificate aux info to a STACK_OF
1707 X509_ALGOR. Although not an AlgorithmIdentifier as such it has
1708 the required ASN1 format: arbitrary types determined by an OID.
1711 *) Add some PEM_write_X509_REQ_NEW() functions and a command line
1712 argument to 'req'. This is not because the function is newer or
1713 better than others it just uses the work 'NEW' in the certificate
1714 request header lines. Some software needs this.
1717 *) Reorganise password command line arguments: now passwords can be
1718 obtained from various sources. Delete the PEM_cb function and make
1719 it the default behaviour: i.e. if the callback is NULL and the
1720 usrdata argument is not NULL interpret it as a null terminated pass
1721 phrase. If usrdata and the callback are NULL then the pass phrase
1722 is prompted for as usual.
1725 *) Add support for the Compaq Atalla crypto accelerator. If it is installed,
1726 the support is automatically enabled. The resulting binaries will
1727 autodetect the card and use it if present.
1728 [Ben Laurie and Compaq Inc.]
1730 *) Work around for Netscape hang bug. This sends certificate request
1731 and server done in one record. Since this is perfectly legal in the
1732 SSL/TLS protocol it isn't a "bug" option and is on by default. See
1733 the bugs/SSLv3 entry for more info.
1736 *) HP-UX tune-up: new unified configs, HP C compiler bug workaround.
1739 *) Add -rand argument to smime and pkcs12 applications and read/write
1743 *) New 'passwd' tool for crypt(3) and apr1 password hashes.
1746 *) Add command line password options to the remaining applications.
1749 *) Bug fix for BN_div_recp() for numerators with an even number of
1753 *) More tests in bntest.c, and changed test_bn output.
1756 *) ./config recognizes MacOS X now.
1759 *) Bug fix for BN_div() when the first words of num and divsor are
1760 equal (it gave wrong results if (rem=(n1-q*d0)&BN_MASK2) < d0).
1763 *) Add support for various broken PKCS#8 formats, and command line
1764 options to produce them.
1767 *) New functions BN_CTX_start(), BN_CTX_get() and BT_CTX_end() to
1768 get temporary BIGNUMs from a BN_CTX.
1771 *) Correct return values in BN_mod_exp_mont() and BN_mod_exp2_mont()
1775 *) Change the SSLeay_add_all_*() functions to OpenSSL_add_all_*() and
1776 include a #define from the old name to the new. The original intent
1777 was that statically linked binaries could for example just call
1778 SSLeay_add_all_ciphers() to just add ciphers to the table and not
1779 link with digests. This never worked becayse SSLeay_add_all_digests()
1780 and SSLeay_add_all_ciphers() were in the same source file so calling
1781 one would link with the other. They are now in separate source files.
1784 *) Add a new -notext option to 'ca' and a -pubkey option to 'spkac'.
1787 *) Use a less unusual form of the Miller-Rabin primality test (it used
1788 a binary algorithm for exponentiation integrated into the Miller-Rabin
1789 loop, our standard modexp algorithms are faster).
1792 *) Support for the EBCDIC character set completed.
1793 [Martin Kraemer <Martin.Kraemer@Mch.SNI.De>]
1795 *) Source code cleanups: use const where appropriate, eliminate casts,
1796 use void * instead of char * in lhash.
1799 *) Bugfix: ssl3_send_server_key_exchange was not restartable
1800 (the state was not changed to SSL3_ST_SW_KEY_EXCH_B, and because of
1801 this the server could overwrite ephemeral keys that the client
1805 *) Turn DSA_is_prime into a macro that calls BN_is_prime,
1806 using 50 iterations of the Rabin-Miller test.
1808 DSA_generate_parameters now uses BN_is_prime_fasttest (with 50
1809 iterations of the Rabin-Miller test as required by the appendix
1810 to FIPS PUB 186[-1]) instead of DSA_is_prime.
1811 As BN_is_prime_fasttest includes trial division, DSA parameter
1812 generation becomes much faster.
1814 This implies a change for the callback functions in DSA_is_prime
1815 and DSA_generate_parameters: The callback function is called once
1816 for each positive witness in the Rabin-Miller test, not just
1817 occasionally in the inner loop; and the parameters to the
1818 callback function now provide an iteration count for the outer
1819 loop rather than for the current invocation of the inner loop.
1820 DSA_generate_parameters additionally can call the callback
1821 function with an 'iteration count' of -1, meaning that a
1822 candidate has passed the trial division test (when q is generated
1823 from an application-provided seed, trial division is skipped).
1826 *) New function BN_is_prime_fasttest that optionally does trial
1827 division before starting the Rabin-Miller test and has
1828 an additional BN_CTX * argument (whereas BN_is_prime always
1829 has to allocate at least one BN_CTX).
1830 'callback(1, -1, cb_arg)' is called when a number has passed the
1831 trial division stage.
1834 *) Fix for bug in CRL encoding. The validity dates weren't being handled
1838 *) New -pkcs12 option to CA.pl script to write out a PKCS#12 file.
1841 *) New function BN_pseudo_rand().
1844 *) Clean up BN_mod_mul_montgomery(): replace the broken (and unreadable)
1845 bignum version of BN_from_montgomery() with the working code from
1846 SSLeay 0.9.0 (the word based version is faster anyway), and clean up
1850 *) Avoid a race condition in s2_clnt.c (function get_server_hello) that
1851 made it impossible to use the same SSL_SESSION data structure in
1852 SSL2 clients in multiple threads.
1855 *) The return value of RAND_load_file() no longer counts bytes obtained
1856 by stat(). RAND_load_file(..., -1) is new and uses the complete file
1857 to seed the PRNG (previously an explicit byte count was required).
1858 [Ulf Möller, Bodo Möller]
1860 *) Clean up CRYPTO_EX_DATA functions, some of these didn't have prototypes
1861 used (char *) instead of (void *) and had casts all over the place.
1864 *) Make BN_generate_prime() return NULL on error if ret!=NULL.
1867 *) Retain source code compatibility for BN_prime_checks macro:
1868 BN_is_prime(..., BN_prime_checks, ...) now uses
1869 BN_prime_checks_for_size to determine the appropriate number of
1870 Rabin-Miller iterations.
1873 *) Diffie-Hellman uses "safe" primes: DH_check() return code renamed to
1874 DH_CHECK_P_NOT_SAFE_PRIME.
1875 (Check if this is true? OpenPGP calls them "strong".)
1878 *) Merge the functionality of "dh" and "gendh" programs into a new program
1879 "dhparam". The old programs are retained for now but will handle DH keys
1880 (instead of parameters) in future.
1883 *) Make the ciphers, s_server and s_client programs check the return values
1884 when a new cipher list is set.
1887 *) Enhance the SSL/TLS cipher mechanism to correctly handle the TLS 56bit
1888 ciphers. Before when the 56bit ciphers were enabled the sorting was
1891 The syntax for the cipher sorting has been extended to support sorting by
1892 cipher-strength (using the strength_bits hard coded in the tables).
1893 The new command is "@STRENGTH" (see also doc/apps/ciphers.pod).
1895 Fix a bug in the cipher-command parser: when supplying a cipher command
1896 string with an "undefined" symbol (neither command nor alphanumeric
1897 [A-Za-z0-9], ssl_set_cipher_list used to hang in an endless loop. Now
1898 an error is flagged.
1900 Due to the strength-sorting extension, the code of the
1901 ssl_create_cipher_list() function was completely rearranged. I hope that
1902 the readability was also increased :-)
1903 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
1905 *) Minor change to 'x509' utility. The -CAcreateserial option now uses 1
1906 for the first serial number and places 2 in the serial number file. This
1907 avoids problems when the root CA is created with serial number zero and
1908 the first user certificate has the same issuer name and serial number
1912 *) Fixes to X509_ATTRIBUTE utilities, change the 'req' program so it uses
1913 the new code. Add documentation for this stuff.
1916 *) Changes to X509_ATTRIBUTE utilities. These have been renamed from
1917 X509_*() to X509at_*() on the grounds that they don't handle X509
1918 structures and behave in an analagous way to the X509v3 functions:
1919 they shouldn't be called directly but wrapper functions should be used
1922 So we also now have some wrapper functions that call the X509at functions
1923 when passed certificate requests. (TO DO: similar things can be done with
1924 PKCS#7 signed and unsigned attributes, PKCS#12 attributes and a few other
1925 things. Some of these need some d2i or i2d and print functionality
1926 because they handle more complex structures.)
1929 *) Add missing #ifndefs that caused missing symbols when building libssl
1930 as a shared library without RSA. Use #ifndef NO_SSL2 instead of
1931 NO_RSA in ssl/s2*.c.
1932 [Kris Kennaway <kris@hub.freebsd.org>, modified by Ulf Möller]
1934 *) Precautions against using the PRNG uninitialized: RAND_bytes() now
1935 has a return value which indicates the quality of the random data
1936 (1 = ok, 0 = not seeded). Also an error is recorded on the thread's
1937 error queue. New function RAND_pseudo_bytes() generates output that is
1938 guaranteed to be unique but not unpredictable. RAND_add is like
1939 RAND_seed, but takes an extra argument for an entropy estimate
1940 (RAND_seed always assumes full entropy).
1943 *) Do more iterations of Rabin-Miller probable prime test (specifically,
1944 3 for 1024-bit primes, 6 for 512-bit primes, 12 for 256-bit primes
1945 instead of only 2 for all lengths; see BN_prime_checks_for_size definition
1946 in crypto/bn/bn_prime.c for the complete table). This guarantees a
1947 false-positive rate of at most 2^-80 for random input.
1950 *) Rewrite ssl3_read_n (ssl/s3_pkt.c) avoiding a couple of bugs.
1953 *) New function X509_CTX_rget_chain() (renamed to X509_CTX_get1_chain
1954 in the 0.9.5 release), this returns the chain
1955 from an X509_CTX structure with a dup of the stack and all
1956 the X509 reference counts upped: so the stack will exist
1957 after X509_CTX_cleanup() has been called. Modify pkcs12.c
1960 Also make SSL_SESSION_print() print out the verify return
1964 *) Add manpage for the pkcs12 command. Also change the default
1965 behaviour so MAC iteration counts are used unless the new
1966 -nomaciter option is used. This improves file security and
1967 only older versions of MSIE (4.0 for example) need it.
1970 *) Honor the no-xxx Configure options when creating .DEF files.
1973 *) Add PKCS#10 attributes to field table: challengePassword,
1974 unstructuredName and unstructuredAddress. These are taken from
1975 draft PKCS#9 v2.0 but are compatible with v1.2 provided no
1976 international characters are used.
1978 More changes to X509_ATTRIBUTE code: allow the setting of types
1979 based on strings. Remove the 'loc' parameter when adding
1980 attributes because these will be a SET OF encoding which is sorted
1984 *) Initial changes to the 'req' utility to allow request generation
1985 automation. This will allow an application to just generate a template
1986 file containing all the field values and have req construct the
1989 Initial support for X509_ATTRIBUTE handling. Stacks of these are
1990 used all over the place including certificate requests and PKCS#7
1991 structures. They are currently handled manually where necessary with
1992 some primitive wrappers for PKCS#7. The new functions behave in a
1993 manner analogous to the X509 extension functions: they allow
1994 attributes to be looked up by NID and added.
1996 Later something similar to the X509V3 code would be desirable to
1997 automatically handle the encoding, decoding and printing of the
1998 more complex types. The string types like challengePassword can
1999 be handled by the string table functions.
2001 Also modified the multi byte string table handling. Now there is
2002 a 'global mask' which masks out certain types. The table itself
2003 can use the flag STABLE_NO_MASK to ignore the mask setting: this
2004 is useful when for example there is only one permissible type
2005 (as in countryName) and using the mask might result in no valid
2009 *) Clean up 'Finished' handling, and add functions SSL_get_finished and
2010 SSL_get_peer_finished to allow applications to obtain the latest
2011 Finished messages sent to the peer or expected from the peer,
2012 respectively. (SSL_get_peer_finished is usually the Finished message
2013 actually received from the peer, otherwise the protocol will be aborted.)
2015 As the Finished message are message digests of the complete handshake
2016 (with a total of 192 bits for TLS 1.0 and more for SSL 3.0), they can
2017 be used for external authentication procedures when the authentication
2018 provided by SSL/TLS is not desired or is not enough.
2021 *) Enhanced support for Alpha Linux is added. Now ./config checks if
2022 the host supports BWX extension and if Compaq C is present on the
2023 $PATH. Just exploiting of the BWX extension results in 20-30%
2024 performance kick for some algorithms, e.g. DES and RC4 to mention
2025 a couple. Compaq C in turn generates ~20% faster code for MD5 and
2029 *) Add support for MS "fast SGC". This is arguably a violation of the
2030 SSL3/TLS protocol. Netscape SGC does two handshakes: the first with
2031 weak crypto and after checking the certificate is SGC a second one
2032 with strong crypto. MS SGC stops the first handshake after receiving
2033 the server certificate message and sends a second client hello. Since
2034 a server will typically do all the time consuming operations before
2035 expecting any further messages from the client (server key exchange
2036 is the most expensive) there is little difference between the two.
2038 To get OpenSSL to support MS SGC we have to permit a second client
2039 hello message after we have sent server done. In addition we have to
2040 reset the MAC if we do get this second client hello.
2043 *) Add a function 'd2i_AutoPrivateKey()' this will automatically decide
2044 if a DER encoded private key is RSA or DSA traditional format. Changed
2045 d2i_PrivateKey_bio() to use it. This is only needed for the "traditional"
2046 format DER encoded private key. Newer code should use PKCS#8 format which
2047 has the key type encoded in the ASN1 structure. Added DER private key
2048 support to pkcs8 application.
2051 *) SSL 3/TLS 1 servers now don't request certificates when an anonymous
2052 ciphersuites has been selected (as required by the SSL 3/TLS 1
2053 specifications). Exception: When SSL_VERIFY_FAIL_IF_NO_PEER_CERT
2054 is set, we interpret this as a request to violate the specification
2055 (the worst that can happen is a handshake failure, and 'correct'
2056 behaviour would result in a handshake failure anyway).
2059 *) In SSL_CTX_add_session, take into account that there might be multiple
2060 SSL_SESSION structures with the same session ID (e.g. when two threads
2061 concurrently obtain them from an external cache).
2062 The internal cache can handle only one SSL_SESSION with a given ID,
2063 so if there's a conflict, we now throw out the old one to achieve
2067 *) Add OIDs for idea and blowfish in CBC mode. This will allow both
2068 to be used in PKCS#5 v2.0 and S/MIME. Also add checking to
2069 some routines that use cipher OIDs: some ciphers do not have OIDs
2070 defined and so they cannot be used for S/MIME and PKCS#5 v2.0 for
2074 *) Simplify the trust setting structure and code. Now we just have
2075 two sequences of OIDs for trusted and rejected settings. These will
2076 typically have values the same as the extended key usage extension
2077 and any application specific purposes.
2079 The trust checking code now has a default behaviour: it will just
2080 check for an object with the same NID as the passed id. Functions can
2081 be provided to override either the default behaviour or the behaviour
2082 for a given id. SSL client, server and email already have functions
2083 in place for compatibility: they check the NID and also return "trusted"
2084 if the certificate is self signed.
2087 *) Add d2i,i2d bio/fp functions for PrivateKey: these convert the
2088 traditional format into an EVP_PKEY structure.
2091 *) Add a password callback function PEM_cb() which either prompts for
2092 a password if usr_data is NULL or otherwise assumes it is a null
2093 terminated password. Allow passwords to be passed on command line
2094 environment or config files in a few more utilities.
2097 *) Add a bunch of DER and PEM functions to handle PKCS#8 format private
2098 keys. Add some short names for PKCS#8 PBE algorithms and allow them
2099 to be specified on the command line for the pkcs8 and pkcs12 utilities.
2100 Update documentation.
2103 *) Support for ASN1 "NULL" type. This could be handled before by using
2104 ASN1_TYPE but there wasn't any function that would try to read a NULL
2105 and produce an error if it couldn't. For compatibility we also have
2106 ASN1_NULL_new() and ASN1_NULL_free() functions but these are faked and
2107 don't allocate anything because they don't need to.
2110 *) Initial support for MacOS is now provided. Examine INSTALL.MacOS
2112 [Andy Polyakov, Roy Woods <roy@centicsystems.ca>]
2114 *) Rebuild of the memory allocation routines used by OpenSSL code and
2115 possibly others as well. The purpose is to make an interface that
2116 provide hooks so anyone can build a separate set of allocation and
2117 deallocation routines to be used by OpenSSL, for example memory
2118 pool implementations, or something else, which was previously hard
2119 since Malloc(), Realloc() and Free() were defined as macros having
2120 the values malloc, realloc and free, respectively (except for Win32
2121 compilations). The same is provided for memory debugging code.
2122 OpenSSL already comes with functionality to find memory leaks, but
2123 this gives people a chance to debug other memory problems.
2125 With these changes, a new set of functions and macros have appeared:
2127 CRYPTO_set_mem_debug_functions() [F]
2128 CRYPTO_get_mem_debug_functions() [F]
2129 CRYPTO_dbg_set_options() [F]
2130 CRYPTO_dbg_get_options() [F]
2131 CRYPTO_malloc_debug_init() [M]
2133 The memory debug functions are NULL by default, unless the library
2134 is compiled with CRYPTO_MDEBUG or friends is defined. If someone
2135 wants to debug memory anyway, CRYPTO_malloc_debug_init() (which
2136 gives the standard debugging functions that come with OpenSSL) or
2137 CRYPTO_set_mem_debug_functions() (tells OpenSSL to use functions
2138 provided by the library user) must be used. When the standard
2139 debugging functions are used, CRYPTO_dbg_set_options can be used to
2140 request additional information:
2141 CRYPTO_dbg_set_options(V_CYRPTO_MDEBUG_xxx) corresponds to setting
2142 the CRYPTO_MDEBUG_xxx macro when compiling the library.
2144 Also, things like CRYPTO_set_mem_functions will always give the
2145 expected result (the new set of functions is used for allocation
2146 and deallocation) at all times, regardless of platform and compiler
2149 To finish it up, some functions that were never use in any other
2150 way than through macros have a new API and new semantic:
2153 CRYPTO_dbg_realloc()
2156 All macros of value have retained their old syntax.
2157 [Richard Levitte and Bodo Moeller]
2159 *) Some S/MIME fixes. The OID for SMIMECapabilities was wrong, the
2160 ordering of SMIMECapabilities wasn't in "strength order" and there
2161 was a missing NULL in the AlgorithmIdentifier for the SHA1 signature
2165 *) Some ASN1 types with illegal zero length encoding (INTEGER,
2166 ENUMERATED and OBJECT IDENTIFIER) choked the ASN1 routines.
2167 [Frans Heymans <fheymans@isaserver.be>, modified by Steve Henson]
2169 *) Merge in my S/MIME library for OpenSSL. This provides a simple
2170 S/MIME API on top of the PKCS#7 code, a MIME parser (with enough
2171 functionality to handle multipart/signed properly) and a utility
2172 called 'smime' to call all this stuff. This is based on code I
2173 originally wrote for Celo who have kindly allowed it to be
2174 included in OpenSSL.
2177 *) Add variants des_set_key_checked and des_set_key_unchecked of
2178 des_set_key (aka des_key_sched). Global variable des_check_key
2179 decides which of these is called by des_set_key; this way
2180 des_check_key behaves as it always did, but applications and
2181 the library itself, which was buggy for des_check_key == 1,
2182 have a cleaner way to pick the version they need.
2185 *) New function PKCS12_newpass() which changes the password of a
2189 *) Modify X509_TRUST and X509_PURPOSE so it also uses a static and
2190 dynamic mix. In both cases the ids can be used as an index into the
2191 table. Also modified the X509_TRUST_add() and X509_PURPOSE_add()
2192 functions so they accept a list of the field values and the
2193 application doesn't need to directly manipulate the X509_TRUST
2197 *) Modify the ASN1_STRING_TABLE stuff so it also uses bsearch and doesn't
2201 *) Modify the way the V3 extension code looks up extensions. This now
2202 works in a similar way to the object code: we have some "standard"
2203 extensions in a static table which is searched with OBJ_bsearch()
2204 and the application can add dynamic ones if needed. The file
2205 crypto/x509v3/ext_dat.h now has the info: this file needs to be
2206 updated whenever a new extension is added to the core code and kept
2207 in ext_nid order. There is a simple program 'tabtest.c' which checks
2208 this. New extensions are not added too often so this file can readily
2209 be maintained manually.
2211 There are two big advantages in doing things this way. The extensions
2212 can be looked up immediately and no longer need to be "added" using
2213 X509V3_add_standard_extensions(): this function now does nothing.
2214 [Side note: I get *lots* of email saying the extension code doesn't
2215 work because people forget to call this function]
2216 Also no dynamic allocation is done unless new extensions are added:
2217 so if we don't add custom extensions there is no need to call
2218 X509V3_EXT_cleanup().
2221 *) Modify enc utility's salting as follows: make salting the default. Add a
2222 magic header, so unsalted files fail gracefully instead of just decrypting
2223 to garbage. This is because not salting is a big security hole, so people
2224 should be discouraged from doing it.
2227 *) Fixes and enhancements to the 'x509' utility. It allowed a message
2228 digest to be passed on the command line but it only used this
2229 parameter when signing a certificate. Modified so all relevant
2230 operations are affected by the digest parameter including the
2231 -fingerprint and -x509toreq options. Also -x509toreq choked if a
2232 DSA key was used because it didn't fix the digest.
2235 *) Initial certificate chain verify code. Currently tests the untrusted
2236 certificates for consistency with the verify purpose (which is set
2237 when the X509_STORE_CTX structure is set up) and checks the pathlength.
2239 There is a NO_CHAIN_VERIFY compilation option to keep the old behaviour:
2240 this is because it will reject chains with invalid extensions whereas
2241 every previous version of OpenSSL and SSLeay made no checks at all.
2243 Trust code: checks the root CA for the relevant trust settings. Trust
2244 settings have an initial value consistent with the verify purpose: e.g.
2245 if the verify purpose is for SSL client use it expects the CA to be
2246 trusted for SSL client use. However the default value can be changed to
2247 permit custom trust settings: one example of this would be to only trust
2248 certificates from a specific "secure" set of CAs.
2250 Also added X509_STORE_CTX_new() and X509_STORE_CTX_free() functions
2251 which should be used for version portability: especially since the
2252 verify structure is likely to change more often now.
2254 SSL integration. Add purpose and trust to SSL_CTX and SSL and functions
2255 to set them. If not set then assume SSL clients will verify SSL servers
2258 Two new options to the verify program: -untrusted allows a set of
2259 untrusted certificates to be passed in and -purpose which sets the
2260 intended purpose of the certificate. If a purpose is set then the
2261 new chain verify code is used to check extension consistency.
2264 *) Support for the authority information access extension.
2267 *) Modify RSA and DSA PEM read routines to transparently handle
2268 PKCS#8 format private keys. New *_PUBKEY_* functions that handle
2269 public keys in a format compatible with certificate
2270 SubjectPublicKeyInfo structures. Unfortunately there were already
2271 functions called *_PublicKey_* which used various odd formats so
2272 these are retained for compatibility: however the DSA variants were
2273 never in a public release so they have been deleted. Changed dsa/rsa
2274 utilities to handle the new format: note no releases ever handled public
2275 keys so we should be OK.
2277 The primary motivation for this change is to avoid the same fiasco
2278 that dogs private keys: there are several incompatible private key
2279 formats some of which are standard and some OpenSSL specific and
2280 require various evil hacks to allow partial transparent handling and
2281 even then it doesn't work with DER formats. Given the option anything
2282 other than PKCS#8 should be dumped: but the other formats have to
2283 stay in the name of compatibility.
2285 With public keys and the benefit of hindsight one standard format
2286 is used which works with EVP_PKEY, RSA or DSA structures: though
2287 it clearly returns an error if you try to read the wrong kind of key.
2289 Added a -pubkey option to the 'x509' utility to output the public key.
2290 Also rename the EVP_PKEY_get_*() to EVP_PKEY_rget_*()
2291 (renamed to EVP_PKEY_get1_*() in the OpenSSL 0.9.5 release) and add
2292 EVP_PKEY_rset_*() functions (renamed to EVP_PKEY_set1_*())
2293 that do the same as the EVP_PKEY_assign_*() except they up the
2294 reference count of the added key (they don't "swallow" the
2298 *) Fixes to crypto/x509/by_file.c the code to read in certificates and
2299 CRLs would fail if the file contained no certificates or no CRLs:
2300 added a new function to read in both types and return the number
2301 read: this means that if none are read it will be an error. The
2302 DER versions of the certificate and CRL reader would always fail
2303 because it isn't possible to mix certificates and CRLs in DER format
2304 without choking one or the other routine. Changed this to just read
2305 a certificate: this is the best we can do. Also modified the code
2306 in apps/verify.c to take notice of return codes: it was previously
2307 attempting to read in certificates from NULL pointers and ignoring
2308 any errors: this is one reason why the cert and CRL reader seemed
2309 to work. It doesn't check return codes from the default certificate
2310 routines: these may well fail if the certificates aren't installed.
2313 *) Code to support otherName option in GeneralName.
2316 *) First update to verify code. Change the verify utility
2317 so it warns if it is passed a self signed certificate:
2318 for consistency with the normal behaviour. X509_verify
2319 has been modified to it will now verify a self signed
2320 certificate if *exactly* the same certificate appears
2321 in the store: it was previously impossible to trust a
2322 single self signed certificate. This means that:
2323 openssl verify ss.pem
2324 now gives a warning about a self signed certificate but
2325 openssl verify -CAfile ss.pem ss.pem
2329 *) For servers, store verify_result in SSL_SESSION data structure
2330 (and add it to external session representation).
2331 This is needed when client certificate verifications fails,
2332 but an application-provided verification callback (set by
2333 SSL_CTX_set_cert_verify_callback) allows accepting the session
2334 anyway (i.e. leaves x509_store_ctx->error != X509_V_OK
2335 but returns 1): When the session is reused, we have to set
2336 ssl->verify_result to the appropriate error code to avoid
2338 [Bodo Moeller, problem pointed out by Lutz Jaenicke]
2340 *) Fix a bug in the new PKCS#7 code: it didn't consider the
2341 case in PKCS7_dataInit() where the signed PKCS7 structure
2342 didn't contain any existing data because it was being created.
2343 [Po-Cheng Chen <pocheng@nst.com.tw>, slightly modified by Steve Henson]
2345 *) Add a salt to the key derivation routines in enc.c. This
2346 forms the first 8 bytes of the encrypted file. Also add a
2347 -S option to allow a salt to be input on the command line.
2350 *) New function X509_cmp(). Oddly enough there wasn't a function
2351 to compare two certificates. We do this by working out the SHA1
2352 hash and comparing that. X509_cmp() will be needed by the trust
2356 *) SSL_get1_session() is like SSL_get_session(), but increments
2357 the reference count in the SSL_SESSION returned.
2358 [Geoff Thorpe <geoff@eu.c2.net>]
2360 *) Fix for 'req': it was adding a null to request attributes.
2361 Also change the X509_LOOKUP and X509_INFO code to handle
2362 certificate auxiliary information.
2365 *) Add support for 40 and 64 bit RC2 and RC4 algorithms: document
2369 *) Add the possibility to add extra information to the memory leak
2370 detecting output, to form tracebacks, showing from where each
2371 allocation was originated: CRYPTO_push_info("constant string") adds
2372 the string plus current file name and line number to a per-thread
2373 stack, CRYPTO_pop_info() does the obvious, CRYPTO_remove_all_info()
2374 is like calling CYRPTO_pop_info() until the stack is empty.
2375 Also updated memory leak detection code to be multi-thread-safe.
2378 *) Add options -text and -noout to pkcs7 utility and delete the
2379 encryption options which never did anything. Update docs.
2382 *) Add options to some of the utilities to allow the pass phrase
2383 to be included on either the command line (not recommended on
2384 OSes like Unix) or read from the environment. Update the
2385 manpages and fix a few bugs.
2388 *) Add a few manpages for some of the openssl commands.
2391 *) Fix the -revoke option in ca. It was freeing up memory twice,
2392 leaking and not finding already revoked certificates.
2395 *) Extensive changes to support certificate auxiliary information.
2396 This involves the use of X509_CERT_AUX structure and X509_AUX
2397 functions. An X509_AUX function such as PEM_read_X509_AUX()
2398 can still read in a certificate file in the usual way but it
2399 will also read in any additional "auxiliary information". By
2400 doing things this way a fair degree of compatibility can be
2401 retained: existing certificates can have this information added
2402 using the new 'x509' options.
2404 Current auxiliary information includes an "alias" and some trust
2405 settings. The trust settings will ultimately be used in enhanced
2406 certificate chain verification routines: currently a certificate
2407 can only be trusted if it is self signed and then it is trusted
2411 *) Fix assembler for Alpha (tested only on DEC OSF not Linux or *BSD).
2412 The problem was that one of the replacement routines had not been working
2413 since SSLeay releases. For now the offending routine has been replaced
2414 with non-optimised assembler. Even so, this now gives around 95%
2415 performance improvement for 1024 bit RSA signs.
2418 *) Hack to fix PKCS#7 decryption when used with some unorthodox RC2
2419 handling. Most clients have the effective key size in bits equal to
2420 the key length in bits: so a 40 bit RC2 key uses a 40 bit (5 byte) key.
2421 A few however don't do this and instead use the size of the decrypted key
2422 to determine the RC2 key length and the AlgorithmIdentifier to determine
2423 the effective key length. In this case the effective key length can still
2424 be 40 bits but the key length can be 168 bits for example. This is fixed
2425 by manually forcing an RC2 key into the EVP_PKEY structure because the
2426 EVP code can't currently handle unusual RC2 key sizes: it always assumes
2427 the key length and effective key length are equal.
2430 *) Add a bunch of functions that should simplify the creation of
2431 X509_NAME structures. Now you should be able to do:
2432 X509_NAME_add_entry_by_txt(nm, "CN", MBSTRING_ASC, "Steve", -1, -1, 0);
2433 and have it automatically work out the correct field type and fill in
2434 the structures. The more adventurous can try:
2435 X509_NAME_add_entry_by_txt(nm, field, MBSTRING_UTF8, str, -1, -1, 0);
2436 and it will (hopefully) work out the correct multibyte encoding.
2439 *) Change the 'req' utility to use the new field handling and multibyte
2440 copy routines. Before the DN field creation was handled in an ad hoc
2441 way in req, ca, and x509 which was rather broken and didn't support
2442 BMPStrings or UTF8Strings. Since some software doesn't implement
2443 BMPStrings or UTF8Strings yet, they can be enabled using the config file
2444 using the dirstring_type option. See the new comment in the default
2445 openssl.cnf for more info.
2448 *) Make crypto/rand/md_rand.c more robust:
2449 - Assure unique random numbers after fork().
2450 - Make sure that concurrent threads access the global counter and
2451 md serializably so that we never lose entropy in them
2452 or use exactly the same state in multiple threads.
2453 Access to the large state is not always serializable because
2454 the additional locking could be a performance killer, and
2455 md should be large enough anyway.
2458 *) New file apps/app_rand.c with commonly needed functionality
2459 for handling the random seed file.
2461 Use the random seed file in some applications that previously did not:
2463 dsaparam -genkey (which also ignored its '-rand' option),
2466 x509 (when signing).
2467 Except on systems with /dev/urandom, it is crucial to have a random
2468 seed file at least for key creation, DSA signing, and for DH exchanges;
2469 for RSA signatures we could do without one.
2471 gendh and gendsa (unlike genrsa) used to read only the first byte
2472 of each file listed in the '-rand' option. The function as previously
2473 found in genrsa is now in app_rand.c and is used by all programs
2474 that support '-rand'.
2477 *) In RAND_write_file, use mode 0600 for creating files;
2478 don't just chmod when it may be too late.
2481 *) Report an error from X509_STORE_load_locations
2482 when X509_LOOKUP_load_file or X509_LOOKUP_add_dir failed.
2485 *) New function ASN1_mbstring_copy() this copies a string in either
2486 ASCII, Unicode, Universal (4 bytes per character) or UTF8 format
2487 into an ASN1_STRING type. A mask of permissible types is passed
2488 and it chooses the "minimal" type to use or an error if not type
2492 *) Add function equivalents to the various macros in asn1.h. The old
2493 macros are retained with an M_ prefix. Code inside the library can
2494 use the M_ macros. External code (including the openssl utility)
2495 should *NOT* in order to be "shared library friendly".
2498 *) Add various functions that can check a certificate's extensions
2499 to see if it usable for various purposes such as SSL client,
2500 server or S/MIME and CAs of these types. This is currently
2501 VERY EXPERIMENTAL but will ultimately be used for certificate chain
2502 verification. Also added a -purpose flag to x509 utility to
2503 print out all the purposes.
2506 *) Add a CRYPTO_EX_DATA to X509 certificate structure and associated
2510 *) New X509V3_{X509,CRL,REVOKED}_get_d2i() functions. These will search
2511 for, obtain and decode and extension and obtain its critical flag.
2512 This allows all the necessary extension code to be handled in a
2513 single function call.
2516 *) RC4 tune-up featuring 30-40% performance improvement on most RISC
2517 platforms. See crypto/rc4/rc4_enc.c for further details.
2520 *) New -noout option to asn1parse. This causes no output to be produced
2521 its main use is when combined with -strparse and -out to extract data
2522 from a file (which may not be in ASN.1 format).
2525 *) Fix for pkcs12 program. It was hashing an invalid certificate pointer
2526 when producing the local key id.
2527 [Richard Levitte <levitte@stacken.kth.se>]
2529 *) New option -dhparam in s_server. This allows a DH parameter file to be
2530 stated explicitly. If it is not stated then it tries the first server
2531 certificate file. The previous behaviour hard coded the filename
2535 *) Add -pubin and -pubout options to the rsa and dsa commands. These allow
2536 a public key to be input or output. For example:
2537 openssl rsa -in key.pem -pubout -out pubkey.pem
2538 Also added necessary DSA public key functions to handle this.
2541 *) Fix so PKCS7_dataVerify() doesn't crash if no certificates are contained
2542 in the message. This was handled by allowing
2543 X509_find_by_issuer_and_serial() to tolerate a NULL passed to it.
2544 [Steve Henson, reported by Sampo Kellomaki <sampo@mail.neuronio.pt>]
2546 *) Fix for bug in d2i_ASN1_bytes(): other ASN1 functions add an extra null
2547 to the end of the strings whereas this didn't. This would cause problems
2548 if strings read with d2i_ASN1_bytes() were later modified.
2549 [Steve Henson, reported by Arne Ansper <arne@ats.cyber.ee>]
2551 *) Fix for base64 decode bug. When a base64 bio reads only one line of
2552 data and it contains EOF it will end up returning an error. This is
2553 caused by input 46 bytes long. The cause is due to the way base64
2554 BIOs find the start of base64 encoded data. They do this by trying a
2555 trial decode on each line until they find one that works. When they
2556 do a flag is set and it starts again knowing it can pass all the
2557 data directly through the decoder. Unfortunately it doesn't reset
2558 the context it uses. This means that if EOF is reached an attempt
2559 is made to pass two EOFs through the context and this causes the
2560 resulting error. This can also cause other problems as well. As is
2561 usual with these problems it takes *ages* to find and the fix is
2562 trivial: move one line.
2563 [Steve Henson, reported by ian@uns.ns.ac.yu (Ivan Nejgebauer) ]
2565 *) Ugly workaround to get s_client and s_server working under Windows. The
2566 old code wouldn't work because it needed to select() on sockets and the
2567 tty (for keypresses and to see if data could be written). Win32 only
2568 supports select() on sockets so we select() with a 1s timeout on the
2569 sockets and then see if any characters are waiting to be read, if none
2570 are present then we retry, we also assume we can always write data to
2571 the tty. This isn't nice because the code then blocks until we've
2572 received a complete line of data and it is effectively polling the
2573 keyboard at 1s intervals: however it's quite a bit better than not
2574 working at all :-) A dedicated Windows application might handle this
2575 with an event loop for example.
2578 *) Enhance RSA_METHOD structure. Now there are two extra methods, rsa_sign
2579 and rsa_verify. When the RSA_FLAGS_SIGN_VER option is set these functions
2580 will be called when RSA_sign() and RSA_verify() are used. This is useful
2581 if rsa_pub_dec() and rsa_priv_enc() equivalents are not available.
2582 For this to work properly RSA_public_decrypt() and RSA_private_encrypt()
2583 should *not* be used: RSA_sign() and RSA_verify() must be used instead.
2584 This necessitated the support of an extra signature type NID_md5_sha1
2585 for SSL signatures and modifications to the SSL library to use it instead
2586 of calling RSA_public_decrypt() and RSA_private_encrypt().
2589 *) Add new -verify -CAfile and -CApath options to the crl program, these
2590 will lookup a CRL issuers certificate and verify the signature in a
2591 similar way to the verify program. Tidy up the crl program so it
2592 no longer accesses structures directly. Make the ASN1 CRL parsing a bit
2593 less strict. It will now permit CRL extensions even if it is not
2594 a V2 CRL: this will allow it to tolerate some broken CRLs.
2597 *) Initialize all non-automatic variables each time one of the openssl
2598 sub-programs is started (this is necessary as they may be started
2599 multiple times from the "OpenSSL>" prompt).
2600 [Lennart Bang, Bodo Moeller]
2602 *) Preliminary compilation option RSA_NULL which disables RSA crypto without
2603 removing all other RSA functionality (this is what NO_RSA does). This
2604 is so (for example) those in the US can disable those operations covered
2605 by the RSA patent while allowing storage and parsing of RSA keys and RSA
2609 *) Non-copying interface to BIO pairs.
2610 (still largely untested)
2613 *) New function ANS1_tag2str() to convert an ASN1 tag to a descriptive
2614 ASCII string. This was handled independently in various places before.
2617 *) New functions UTF8_getc() and UTF8_putc() that parse and generate
2618 UTF8 strings a character at a time.
2621 *) Use client_version from client hello to select the protocol
2622 (s23_srvr.c) and for RSA client key exchange verification
2623 (s3_srvr.c), as required by the SSL 3.0/TLS 1.0 specifications.
2626 *) Add various utility functions to handle SPKACs, these were previously
2627 handled by poking round in the structure internals. Added new function
2628 NETSCAPE_SPKI_print() to print out SPKAC and a new utility 'spkac' to
2629 print, verify and generate SPKACs. Based on an original idea from
2630 Massimiliano Pala <madwolf@comune.modena.it> but extensively modified.
2633 *) RIPEMD160 is operational on all platforms and is back in 'make test'.
2636 *) Allow the config file extension section to be overwritten on the
2637 command line. Based on an original idea from Massimiliano Pala
2638 <madwolf@comune.modena.it>. The new option is called -extensions
2639 and can be applied to ca, req and x509. Also -reqexts to override
2640 the request extensions in req and -crlexts to override the crl extensions
2644 *) Add new feature to the SPKAC handling in ca. Now you can include
2645 the same field multiple times by preceding it by "XXXX." for example:
2648 this is the same syntax as used in the req config file.
2651 *) Allow certificate extensions to be added to certificate requests. These
2652 are specified in a 'req_extensions' option of the req section of the
2653 config file. They can be printed out with the -text option to req but
2654 are otherwise ignored at present.
2657 *) Fix a horrible bug in enc_read() in crypto/evp/bio_enc.c: if the first
2658 data read consists of only the final block it would not decrypted because
2659 EVP_CipherUpdate() would correctly report zero bytes had been decrypted.
2660 A misplaced 'break' also meant the decrypted final block might not be
2661 copied until the next read.
2664 *) Initial support for DH_METHOD. Again based on RSA_METHOD. Also added
2665 a few extra parameters to the DH structure: these will be useful if
2666 for example we want the value of 'q' or implement X9.42 DH.
2669 *) Initial support for DSA_METHOD. This is based on the RSA_METHOD and
2670 provides hooks that allow the default DSA functions or functions on a
2671 "per key" basis to be replaced. This allows hardware acceleration and
2672 hardware key storage to be handled without major modification to the
2673 library. Also added low level modexp hooks and CRYPTO_EX structure and
2674 associated functions.
2677 *) Add a new flag to memory BIOs, BIO_FLAG_MEM_RDONLY. This marks the BIO
2678 as "read only": it can't be written to and the buffer it points to will
2679 not be freed. Reading from a read only BIO is much more efficient than
2680 a normal memory BIO. This was added because there are several times when
2681 an area of memory needs to be read from a BIO. The previous method was
2682 to create a memory BIO and write the data to it, this results in two
2683 copies of the data and an O(n^2) reading algorithm. There is a new
2684 function BIO_new_mem_buf() which creates a read only memory BIO from
2685 an area of memory. Also modified the PKCS#7 routines to use read only
2689 *) Bugfix: ssl23_get_client_hello did not work properly when called in
2690 state SSL23_ST_SR_CLNT_HELLO_B, i.e. when the first 7 bytes of
2691 a SSLv2-compatible client hello for SSLv3 or TLSv1 could be read,
2692 but a retry condition occured while trying to read the rest.
2695 *) The PKCS7_ENC_CONTENT_new() function was setting the content type as
2696 NID_pkcs7_encrypted by default: this was wrong since this should almost
2697 always be NID_pkcs7_data. Also modified the PKCS7_set_type() to handle
2698 the encrypted data type: this is a more sensible place to put it and it
2699 allows the PKCS#12 code to be tidied up that duplicated this
2703 *) Changed obj_dat.pl script so it takes its input and output files on
2704 the command line. This should avoid shell escape redirection problems
2708 *) Initial support for certificate extension requests, these are included
2709 in things like Xenroll certificate requests. Included functions to allow
2710 extensions to be obtained and added.
2713 *) -crlf option to s_client and s_server for sending newlines as
2714 CRLF (as required by many protocols).
2717 Changes between 0.9.3a and 0.9.4 [09 Aug 1999]
2719 *) Install libRSAglue.a when OpenSSL is built with RSAref.
2720 [Ralf S. Engelschall]
2722 *) A few more ``#ifndef NO_FP_API / #endif'' pairs for consistency.
2723 [Andrija Antonijevic <TheAntony2@bigfoot.com>]
2725 *) Fix -startdate and -enddate (which was missing) arguments to 'ca'
2729 *) New function DSA_dup_DH, which duplicates DSA parameters/keys as
2730 DH parameters/keys (q is lost during that conversion, but the resulting
2731 DH parameters contain its length).
2733 For 1024-bit p, DSA_generate_parameters followed by DSA_dup_DH is
2734 much faster than DH_generate_parameters (which creates parameters
2735 where p = 2*q + 1), and also the smaller q makes DH computations
2736 much more efficient (160-bit exponentiation instead of 1024-bit
2737 exponentiation); so this provides a convenient way to support DHE
2738 ciphersuites in SSL/TLS servers (see ssl/ssltest.c). It is of
2739 utter importance to use
2740 SSL_CTX_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
2742 SSL_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
2743 when such DH parameters are used, because otherwise small subgroup
2744 attacks may become possible!
2747 *) Avoid memory leak in i2d_DHparams.
2750 *) Allow the -k option to be used more than once in the enc program:
2751 this allows the same encrypted message to be read by multiple recipients.
2754 *) New function OBJ_obj2txt(buf, buf_len, a, no_name), this converts
2755 an ASN1_OBJECT to a text string. If the "no_name" parameter is set then
2756 it will always use the numerical form of the OID, even if it has a short
2760 *) Added an extra RSA flag: RSA_FLAG_EXT_PKEY. Previously the rsa_mod_exp
2761 method only got called if p,q,dmp1,dmq1,iqmp components were present,
2762 otherwise bn_mod_exp was called. In the case of hardware keys for example
2763 no private key components need be present and it might store extra data
2764 in the RSA structure, which cannot be accessed from bn_mod_exp.
2765 By setting RSA_FLAG_EXT_PKEY rsa_mod_exp will always be called for
2766 private key operations.
2769 *) Added support for SPARC Linux.
2772 *) pem_password_cb function type incompatibly changed from
2773 typedef int pem_password_cb(char *buf, int size, int rwflag);
2775 ....(char *buf, int size, int rwflag, void *userdata);
2776 so that applications can pass data to their callbacks:
2777 The PEM[_ASN1]_{read,write}... functions and macros now take an
2778 additional void * argument, which is just handed through whenever
2779 the password callback is called.
2780 [Damien Miller <dmiller@ilogic.com.au>; tiny changes by Bodo Moeller]
2782 New function SSL_CTX_set_default_passwd_cb_userdata.
2784 Compatibility note: As many C implementations push function arguments
2785 onto the stack in reverse order, the new library version is likely to
2786 interoperate with programs that have been compiled with the old
2787 pem_password_cb definition (PEM_whatever takes some data that
2788 happens to be on the stack as its last argument, and the callback
2789 just ignores this garbage); but there is no guarantee whatsoever that
2792 *) The -DPLATFORM="\"$(PLATFORM)\"" definition and the similar -DCFLAGS=...
2793 (both in crypto/Makefile.ssl for use by crypto/cversion.c) caused
2794 problems not only on Windows, but also on some Unix platforms.
2795 To avoid problematic command lines, these definitions are now in an
2796 auto-generated file crypto/buildinf.h (created by crypto/Makefile.ssl
2797 for standard "make" builds, by util/mk1mf.pl for "mk1mf" builds).
2800 *) MIPS III/IV assembler module is reimplemented.
2803 *) More DES library cleanups: remove references to srand/rand and
2804 delete an unused file.
2807 *) Add support for the the free Netwide assembler (NASM) under Win32,
2808 since not many people have MASM (ml) and it can be hard to obtain.
2809 This is currently experimental but it seems to work OK and pass all
2810 the tests. Check out INSTALL.W32 for info.
2813 *) Fix memory leaks in s3_clnt.c: All non-anonymous SSL3/TLS1 connections
2814 without temporary keys kept an extra copy of the server key,
2815 and connections with temporary keys did not free everything in case
2819 *) New function RSA_check_key and new openssl rsa option -check
2820 for verifying the consistency of RSA keys.
2821 [Ulf Moeller, Bodo Moeller]
2823 *) Various changes to make Win32 compile work:
2824 1. Casts to avoid "loss of data" warnings in p5_crpt2.c
2825 2. Change unsigned int to int in b_dump.c to avoid "signed/unsigned
2826 comparison" warnings.
2827 3. Add sk_<TYPE>_sort to DEF file generator and do make update.
2830 *) Add a debugging option to PKCS#5 v2 key generation function: when
2831 you #define DEBUG_PKCS5V2 passwords, salts, iteration counts and
2832 derived keys are printed to stderr.
2835 *) Copy the flags in ASN1_STRING_dup().
2836 [Roman E. Pavlov <pre@mo.msk.ru>]
2838 *) The x509 application mishandled signing requests containing DSA
2839 keys when the signing key was also DSA and the parameters didn't match.
2841 It was supposed to omit the parameters when they matched the signing key:
2842 the verifying software was then supposed to automatically use the CA's
2843 parameters if they were absent from the end user certificate.
2845 Omitting parameters is no longer recommended. The test was also
2846 the wrong way round! This was probably due to unusual behaviour in
2847 EVP_cmp_parameters() which returns 1 if the parameters match.
2848 This meant that parameters were omitted when they *didn't* match and
2849 the certificate was useless. Certificates signed with 'ca' didn't have
2851 [Steve Henson, reported by Doug Erickson <Doug.Erickson@Part.NET>]
2853 *) Memory leak checking (-DCRYPTO_MDEBUG) had some problems.
2854 The interface is as follows:
2855 Applications can use
2856 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON) aka MemCheck_start(),
2857 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_OFF) aka MemCheck_stop();
2858 "off" is now the default.
2859 The library internally uses
2860 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_DISABLE) aka MemCheck_off(),
2861 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ENABLE) aka MemCheck_on()
2862 to disable memory-checking temporarily.
2864 Some inconsistent states that previously were possible (and were
2865 even the default) are now avoided.
2867 -DCRYPTO_MDEBUG_TIME is new and additionally stores the current time
2868 with each memory chunk allocated; this is occasionally more helpful
2869 than just having a counter.
2871 -DCRYPTO_MDEBUG_THREAD is also new and adds the thread ID.
2873 -DCRYPTO_MDEBUG_ALL enables all of the above, plus any future
2877 *) Introduce "mode" for SSL structures (with defaults in SSL_CTX),
2878 which largely parallels "options", but is for changing API behaviour,
2879 whereas "options" are about protocol behaviour.
2880 Initial "mode" flags are:
2882 SSL_MODE_ENABLE_PARTIAL_WRITE Allow SSL_write to report success when
2883 a single record has been written.
2884 SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER Don't insist that SSL_write
2885 retries use the same buffer location.
2886 (But all of the contents must be
2890 *) Bugfix: SSL_set_mode ignored its parameter, only SSL_CTX_set_mode
2893 *) Fix problems with no-hmac etc.
2894 [Ulf Möller, pointed out by Brian Wellington <bwelling@tislabs.com>]
2896 *) New functions RSA_get_default_method(), RSA_set_method() and
2897 RSA_get_method(). These allows replacement of RSA_METHODs without having
2898 to mess around with the internals of an RSA structure.
2901 *) Fix memory leaks in DSA_do_sign and DSA_is_prime.
2902 Also really enable memory leak checks in openssl.c and in some
2904 [Chad C. Mulligan, Bodo Moeller]
2906 *) Fix a bug in d2i_ASN1_INTEGER() and i2d_ASN1_INTEGER() which can mess
2907 up the length of negative integers. This has now been simplified to just
2908 store the length when it is first determined and use it later, rather
2909 than trying to keep track of where data is copied and updating it to
2911 [Steve Henson, reported by Brien Wheeler
2912 <bwheeler@authentica-security.com>]
2914 *) Add a new function PKCS7_signatureVerify. This allows the verification
2915 of a PKCS#7 signature but with the signing certificate passed to the
2916 function itself. This contrasts with PKCS7_dataVerify which assumes the
2917 certificate is present in the PKCS#7 structure. This isn't always the
2918 case: certificates can be omitted from a PKCS#7 structure and be
2919 distributed by "out of band" means (such as a certificate database).
2922 *) Complete the PEM_* macros with DECLARE_PEM versions to replace the
2923 function prototypes in pem.h, also change util/mkdef.pl to add the
2924 necessary function names.
2927 *) mk1mf.pl (used by Windows builds) did not properly read the
2928 options set by Configure in the top level Makefile, and Configure
2929 was not even able to write more than one option correctly.
2930 Fixed, now "no-idea no-rc5 -DCRYPTO_MDEBUG" etc. works as intended.
2933 *) New functions CONF_load_bio() and CONF_load_fp() to allow a config
2934 file to be loaded from a BIO or FILE pointer. The BIO version will
2935 for example allow memory BIOs to contain config info.
2938 *) New function "CRYPTO_num_locks" that returns CRYPTO_NUM_LOCKS.
2939 Whoever hopes to achieve shared-library compatibility across versions
2940 must use this, not the compile-time macro.
2941 (Exercise 0.9.4: Which is the minimum library version required by
2943 Note: All this applies only to multi-threaded programs, others don't
2947 *) Add missing case to s3_clnt.c state machine -- one of the new SSL tests
2948 through a BIO pair triggered the default case, i.e.
2949 SSLerr(...,SSL_R_UNKNOWN_STATE).
2952 *) New "BIO pair" concept (crypto/bio/bss_bio.c) so that applications
2953 can use the SSL library even if none of the specific BIOs is
2957 *) Fix a bug in i2d_DSAPublicKey() which meant it returned the wrong value
2958 for the encoded length.
2959 [Jeon KyoungHo <khjeon@sds.samsung.co.kr>]
2961 *) Add initial documentation of the X509V3 functions.
2964 *) Add a new pair of functions PEM_write_PKCS8PrivateKey() and
2965 PEM_write_bio_PKCS8PrivateKey() that are equivalent to
2966 PEM_write_PrivateKey() and PEM_write_bio_PrivateKey() but use the more
2967 secure PKCS#8 private key format with a high iteration count.
2970 *) Fix determination of Perl interpreter: A perl or perl5
2971 _directory_ in $PATH was also accepted as the interpreter.
2972 [Ralf S. Engelschall]
2974 *) Fix demos/sign/sign.c: well there wasn't anything strictly speaking
2975 wrong with it but it was very old and did things like calling
2976 PEM_ASN1_read() directly and used MD5 for the hash not to mention some
2980 *) Fix demos/selfsign.c: it used obsolete and deleted functions, changed
2981 to use the new extension code.
2984 *) Implement the PEM_read/PEM_write functions in crypto/pem/pem_all.c
2985 with macros. This should make it easier to change their form, add extra
2986 arguments etc. Fix a few PEM prototypes which didn't have cipher as a
2990 *) Add to configuration table a new entry that can specify an alternative
2991 name for unistd.h (for pre-POSIX systems); we need this for NeXTstep,
2992 according to Mark Crispin <MRC@Panda.COM>.
2996 *) DES CBC did not update the IV. Weird.
2999 des_cbc_encrypt does not update the IV, but des_ncbc_encrypt does.
3000 Changing the behaviour of the former might break existing programs --
3001 where IV updating is needed, des_ncbc_encrypt can be used.
3004 *) When bntest is run from "make test" it drives bc to check its
3005 calculations, as well as internally checking them. If an internal check
3006 fails, it needs to cause bc to give a non-zero result or make test carries
3007 on without noticing the failure. Fixed.
3010 *) DES library cleanups.
3013 *) Add support for PKCS#5 v2.0 PBE algorithms. This will permit PKCS#8 to be
3014 used with any cipher unlike PKCS#5 v1.5 which can at most handle 64 bit
3015 ciphers. NOTE: although the key derivation function has been verified
3016 against some published test vectors it has not been extensively tested
3017 yet. Added a -v2 "cipher" option to pkcs8 application to allow the use
3021 *) Instead of "mkdir -p", which is not fully portable, use new
3022 Perl script "util/mkdir-p.pl".
3025 *) Rewrite the way password based encryption (PBE) is handled. It used to
3026 assume that the ASN1 AlgorithmIdentifier parameter was a PBEParameter
3027 structure. This was true for the PKCS#5 v1.5 and PKCS#12 PBE algorithms
3028 but doesn't apply to PKCS#5 v2.0 where it can be something else. Now
3029 the 'parameter' field of the AlgorithmIdentifier is passed to the
3030 underlying key generation function so it must do its own ASN1 parsing.
3031 This has also changed the EVP_PBE_CipherInit() function which now has a
3032 'parameter' argument instead of literal salt and iteration count values
3033 and the function EVP_PBE_ALGOR_CipherInit() has been deleted.
3036 *) Support for PKCS#5 v1.5 compatible password based encryption algorithms
3037 and PKCS#8 functionality. New 'pkcs8' application linked to openssl.
3038 Needed to change the PEM_STRING_EVP_PKEY value which was just "PRIVATE
3039 KEY" because this clashed with PKCS#8 unencrypted string. Since this
3040 value was just used as a "magic string" and not used directly its
3041 value doesn't matter.
3044 *) Introduce some semblance of const correctness to BN. Shame C doesn't
3048 *) "linux-sparc64" configuration (ultrapenguin).
3049 [Ray Miller <ray.miller@oucs.ox.ac.uk>]
3050 "linux-sparc" configuration.
3051 [Christian Forster <fo@hawo.stw.uni-erlangen.de>]
3053 *) config now generates no-xxx options for missing ciphers.
3056 *) Support the EBCDIC character set (work in progress).
3057 File ebcdic.c not yet included because it has a different license.
3058 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
3060 *) Support BS2000/OSD-POSIX.
3061 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
3063 *) Make callbacks for key generation use void * instead of char *.
3066 *) Make S/MIME samples compile (not yet tested).
3069 *) Additional typesafe stacks.
3072 *) New configuration variants "bsdi-elf-gcc" (BSD/OS 4.x).
3076 Changes between 0.9.3 and 0.9.3a [29 May 1999]
3078 *) New configuration variant "sco5-gcc".
3080 *) Updated some demos.
3081 [Sean O Riordain, Wade Scholine]
3083 *) Add missing BIO_free at exit of pkcs12 application.
3086 *) Fix memory leak in conf.c.
3089 *) Updates for Win32 to assembler version of MD5.
3092 *) Set #! path to perl in apps/der_chop to where we found it
3093 instead of using a fixed path.
3096 *) SHA library changes for irix64-mips4-cc.
3099 *) Improvements for VMS support.
3103 Changes between 0.9.2b and 0.9.3 [24 May 1999]
3105 *) Bignum library bug fix. IRIX 6 passes "make test" now!
3106 This also avoids the problems with SC4.2 and unpatched SC5.
3107 [Andy Polyakov <appro@fy.chalmers.se>]
3109 *) New functions sk_num, sk_value and sk_set to replace the previous macros.
3110 These are required because of the typesafe stack would otherwise break
3111 existing code. If old code used a structure member which used to be STACK
3112 and is now STACK_OF (for example cert in a PKCS7_SIGNED structure) with
3113 sk_num or sk_value it would produce an error because the num, data members
3114 are not present in STACK_OF. Now it just produces a warning. sk_set
3115 replaces the old method of assigning a value to sk_value
3116 (e.g. sk_value(x, i) = y) which the library used in a few cases. Any code
3117 that does this will no longer work (and should use sk_set instead) but
3118 this could be regarded as a "questionable" behaviour anyway.
3121 *) Fix most of the other PKCS#7 bugs. The "experimental" code can now
3122 correctly handle encrypted S/MIME data.
3125 *) Change type of various DES function arguments from des_cblock
3126 (which means, in function argument declarations, pointer to char)
3127 to des_cblock * (meaning pointer to array with 8 char elements),
3128 which allows the compiler to do more typechecking; it was like
3129 that back in SSLeay, but with lots of ugly casts.
3131 Introduce new type const_des_cblock.
3134 *) Reorganise the PKCS#7 library and get rid of some of the more obvious
3135 problems: find RecipientInfo structure that matches recipient certificate
3136 and initialise the ASN1 structures properly based on passed cipher.
3139 *) Belatedly make the BN tests actually check the results.
3142 *) Fix the encoding and decoding of negative ASN1 INTEGERS and conversion
3143 to and from BNs: it was completely broken. New compilation option
3144 NEG_PUBKEY_BUG to allow for some broken certificates that encode public
3145 key elements as negative integers.
3148 *) Reorganize and speed up MD5.
3149 [Andy Polyakov <appro@fy.chalmers.se>]
3152 [Richard Levitte <richard@levitte.org>]
3154 *) New option -out to asn1parse to allow the parsed structure to be
3155 output to a file. This is most useful when combined with the -strparse
3156 option to examine the output of things like OCTET STRINGS.
3159 *) Make SSL library a little more fool-proof by not requiring any longer
3160 that SSL_set_{accept,connect}_state be called before
3161 SSL_{accept,connect} may be used (SSL_set_..._state is omitted
3162 in many applications because usually everything *appeared* to work as
3163 intended anyway -- now it really works as intended).
3166 *) Move openssl.cnf out of lib/.
3169 *) Fix various things to let OpenSSL even pass ``egcc -pipe -O2 -Wall
3170 -Wshadow -Wpointer-arith -Wcast-align -Wmissing-prototypes
3171 -Wmissing-declarations -Wnested-externs -Winline'' with EGCS 1.1.2+
3172 [Ralf S. Engelschall]
3174 *) Various fixes to the EVP and PKCS#7 code. It may now be able to
3175 handle PKCS#7 enveloped data properly.
3176 [Sebastian Akerman <sak@parallelconsulting.com>, modified by Steve]
3178 *) Create a duplicate of the SSL_CTX's CERT in SSL_new instead of
3179 copying pointers. The cert_st handling is changed by this in
3180 various ways (and thus what used to be known as ctx->default_cert
3181 is now called ctx->cert, since we don't resort to s->ctx->[default_]cert
3182 any longer when s->cert does not give us what we need).
3183 ssl_cert_instantiate becomes obsolete by this change.
3184 As soon as we've got the new code right (possibly it already is?),
3185 we have solved a couple of bugs of the earlier code where s->cert
3186 was used as if it could not have been shared with other SSL structures.
3188 Note that using the SSL API in certain dirty ways now will result
3189 in different behaviour than observed with earlier library versions:
3190 Changing settings for an SSL_CTX *ctx after having done s = SSL_new(ctx)
3191 does not influence s as it used to.
3193 In order to clean up things more thoroughly, inside SSL_SESSION
3194 we don't use CERT any longer, but a new structure SESS_CERT
3195 that holds per-session data (if available); currently, this is
3196 the peer's certificate chain and, for clients, the server's certificate
3197 and temporary key. CERT holds only those values that can have
3198 meaningful defaults in an SSL_CTX.
3201 *) New function X509V3_EXT_i2d() to create an X509_EXTENSION structure
3202 from the internal representation. Various PKCS#7 fixes: remove some
3203 evil casts and set the enc_dig_alg field properly based on the signing
3207 *) Allow PKCS#12 password to be set from the command line or the
3208 environment. Let 'ca' get its config file name from the environment
3209 variables "OPENSSL_CONF" or "SSLEAY_CONF" (for consistency with 'req'
3213 *) Allow certificate policies extension to use an IA5STRING for the
3214 organization field. This is contrary to the PKIX definition but
3215 VeriSign uses it and IE5 only recognises this form. Document 'x509'
3219 *) Add PEDANTIC compiler flag to allow compilation with gcc -pedantic,
3220 without disallowing inline assembler and the like for non-pedantic builds.
3223 *) Support Borland C++ builder.
3224 [Janez Jere <jj@void.si>, modified by Ulf Möller]
3229 *) SHA-1 cleanups and performance enhancements.
3230 [Andy Polyakov <appro@fy.chalmers.se>]
3232 *) Sparc v8plus assembler for the bignum library.
3233 [Andy Polyakov <appro@fy.chalmers.se>]
3235 *) Accept any -xxx and +xxx compiler options in Configure.
3238 *) Update HPUX configuration.
3241 *) Add missing sk_<type>_unshift() function to safestack.h
3242 [Ralf S. Engelschall]
3244 *) New function SSL_CTX_use_certificate_chain_file that sets the
3245 "extra_cert"s in addition to the certificate. (This makes sense
3246 only for "PEM" format files, as chains as a whole are not
3250 *) Support verify_depth from the SSL API.
3251 x509_vfy.c had what can be considered an off-by-one-error:
3252 Its depth (which was not part of the external interface)
3253 was actually counting the number of certificates in a chain;
3254 now it really counts the depth.
3257 *) Bugfix in crypto/x509/x509_cmp.c: The SSLerr macro was used
3258 instead of X509err, which often resulted in confusing error
3259 messages since the error codes are not globally unique
3260 (e.g. an alleged error in ssl3_accept when a certificate
3261 didn't match the private key).
3263 *) New function SSL_CTX_set_session_id_context that allows to set a default
3264 value (so that you don't need SSL_set_session_id_context for each
3265 connection using the SSL_CTX).
3268 *) OAEP decoding bug fix.
3271 *) Support INSTALL_PREFIX for package builders, as proposed by
3275 *) New Configure options "threads" and "no-threads". For systems
3276 where the proper compiler options are known (currently Solaris
3277 and Linux), "threads" is the default.
3280 *) New script util/mklink.pl as a faster substitute for util/mklink.sh.
3283 *) Install various scripts to $(OPENSSLDIR)/misc, not to
3284 $(INSTALLTOP)/bin -- they shouldn't clutter directories
3285 such as /usr/local/bin.
3288 *) "make linux-shared" to build shared libraries.
3289 [Niels Poppe <niels@netbox.org>]
3291 *) New Configure option no-<cipher> (rsa, idea, rc5, ...).
3294 *) Add the PKCS#12 API documentation to openssl.txt. Preliminary support for
3295 extension adding in x509 utility.
3298 *) Remove NOPROTO sections and error code comments.
3301 *) Partial rewrite of the DEF file generator to now parse the ANSI
3305 *) New Configure options --prefix=DIR and --openssldir=DIR.
3308 *) Complete rewrite of the error code script(s). It is all now handled
3309 by one script at the top level which handles error code gathering,
3310 header rewriting and C source file generation. It should be much better
3311 than the old method: it now uses a modified version of Ulf's parser to
3312 read the ANSI prototypes in all header files (thus the old K&R definitions
3313 aren't needed for error creation any more) and do a better job of
3314 translating function codes into names. The old 'ASN1 error code imbedded
3315 in a comment' is no longer necessary and it doesn't use .err files which
3316 have now been deleted. Also the error code call doesn't have to appear all
3317 on one line (which resulted in some large lines...).
3320 *) Change #include filenames from <foo.h> to <openssl/foo.h>.
3323 *) Change behaviour of ssl2_read when facing length-0 packets: Don't return
3324 0 (which usually indicates a closed connection), but continue reading.
3327 *) Fix some race conditions.
3330 *) Add support for CRL distribution points extension. Add Certificate
3331 Policies and CRL distribution points documentation.
3334 *) Move the autogenerated header file parts to crypto/opensslconf.h.
3337 *) Fix new 56-bit DES export ciphersuites: they were using 7 bytes instead of
3338 8 of keying material. Merlin has also confirmed interop with this fix
3339 between OpenSSL and Baltimore C/SSL 2.0 and J/SSL 2.0.
3340 [Merlin Hughes <merlin@baltimore.ie>]
3342 *) Fix lots of warnings.
3343 [Richard Levitte <levitte@stacken.kth.se>]
3345 *) In add_cert_dir() in crypto/x509/by_dir.c, break out of the loop if
3346 the directory spec didn't end with a LIST_SEPARATOR_CHAR.
3347 [Richard Levitte <levitte@stacken.kth.se>]
3349 *) Fix problems with sizeof(long) == 8.
3350 [Andy Polyakov <appro@fy.chalmers.se>]
3352 *) Change functions to ANSI C.
3355 *) Fix typos in error codes.
3356 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>, Ulf Möller]
3358 *) Remove defunct assembler files from Configure.
3361 *) SPARC v8 assembler BIGNUM implementation.
3362 [Andy Polyakov <appro@fy.chalmers.se>]
3364 *) Support for Certificate Policies extension: both print and set.
3365 Various additions to support the r2i method this uses.
3368 *) A lot of constification, and fix a bug in X509_NAME_oneline() that could
3369 return a const string when you are expecting an allocated buffer.
3372 *) Add support for ASN1 types UTF8String and VISIBLESTRING, also the CHOICE
3373 types DirectoryString and DisplayText.
3376 *) Add code to allow r2i extensions to access the configuration database,
3377 add an LHASH database driver and add several ctx helper functions.
3380 *) Fix an evil bug in bn_expand2() which caused various BN functions to
3381 fail when they extended the size of a BIGNUM.
3384 *) Various utility functions to handle SXNet extension. Modify mkdef.pl to
3385 support typesafe stack.
3388 *) Fix typo in SSL_[gs]et_options().
3389 [Nils Frostberg <nils@medcom.se>]
3391 *) Delete various functions and files that belonged to the (now obsolete)
3392 old X509V3 handling code.
3395 *) New Configure option "rsaref".
3398 *) Don't auto-generate pem.h.
3401 *) Introduce type-safe ASN.1 SETs.
3404 *) Convert various additional casted stacks to type-safe STACK_OF() variants.
3405 [Ben Laurie, Ralf S. Engelschall, Steve Henson]
3407 *) Introduce type-safe STACKs. This will almost certainly break lots of code
3408 that links with OpenSSL (well at least cause lots of warnings), but fear
3409 not: the conversion is trivial, and it eliminates loads of evil casts. A
3410 few STACKed things have been converted already. Feel free to convert more.
3411 In the fullness of time, I'll do away with the STACK type altogether.
3414 *) Add `openssl ca -revoke <certfile>' facility which revokes a certificate
3415 specified in <certfile> by updating the entry in the index.txt file.
3416 This way one no longer has to edit the index.txt file manually for
3417 revoking a certificate. The -revoke option does the gory details now.
3418 [Massimiliano Pala <madwolf@openca.org>, Ralf S. Engelschall]
3420 *) Fix `openssl crl -noout -text' combination where `-noout' killed the
3421 `-text' option at all and this way the `-noout -text' combination was
3422 inconsistent in `openssl crl' with the friends in `openssl x509|rsa|dsa'.
3423 [Ralf S. Engelschall]
3425 *) Make sure a corresponding plain text error message exists for the
3426 X509_V_ERR_CERT_REVOKED/23 error number which can occur when a
3427 verify callback function determined that a certificate was revoked.
3428 [Ralf S. Engelschall]
3430 *) Bugfix: In test/testenc, don't test "openssl <cipher>" for
3431 ciphers that were excluded, e.g. by -DNO_IDEA. Also, test
3432 all available cipers including rc5, which was forgotten until now.
3433 In order to let the testing shell script know which algorithms
3434 are available, a new (up to now undocumented) command
3435 "openssl list-cipher-commands" is used.
3438 *) Bugfix: s_client occasionally would sleep in select() when
3439 it should have checked SSL_pending() first.
3442 *) New functions DSA_do_sign and DSA_do_verify to provide access to
3443 the raw DSA values prior to ASN.1 encoding.
3446 *) Tweaks to Configure
3447 [Niels Poppe <niels@netbox.org>]
3449 *) Add support for PKCS#5 v2.0 ASN1 PBES2 structures. No other support,
3453 *) New variables $(RANLIB) and $(PERL) in the Makefiles.
3456 *) New config option to avoid instructions that are illegal on the 80386.
3457 The default code is faster, but requires at least a 486.
3460 *) Got rid of old SSL2_CLIENT_VERSION (inconsistently used) and
3461 SSL2_SERVER_VERSION (not used at all) macros, which are now the
3462 same as SSL2_VERSION anyway.
3465 *) New "-showcerts" option for s_client.
3468 *) Still more PKCS#12 integration. Add pkcs12 application to openssl
3469 application. Various cleanups and fixes.
3472 *) More PKCS#12 integration. Add new pkcs12 directory with Makefile.ssl and
3473 modify error routines to work internally. Add error codes and PBE init
3474 to library startup routines.
3477 *) Further PKCS#12 integration. Added password based encryption, PKCS#8 and
3478 packing functions to asn1 and evp. Changed function names and error
3479 codes along the way.
3482 *) PKCS12 integration: and so it begins... First of several patches to
3483 slowly integrate PKCS#12 functionality into OpenSSL. Add PKCS#12
3484 objects to objects.h
3487 *) Add a new 'indent' option to some X509V3 extension code. Initial ASN1
3488 and display support for Thawte strong extranet extension.
3491 *) Add LinuxPPC support.
3492 [Jeff Dubrule <igor@pobox.org>]
3494 *) Get rid of redundant BN file bn_mulw.c, and rename bn_div64 to
3495 bn_div_words in alpha.s.
3496 [Hannes Reinecke <H.Reinecke@hw.ac.uk> and Ben Laurie]
3498 *) Make sure the RSA OAEP test is skipped under -DRSAref because
3499 OAEP isn't supported when OpenSSL is built with RSAref.
3500 [Ulf Moeller <ulf@fitug.de>]
3502 *) Move definitions of IS_SET/IS_SEQUENCE inside crypto/asn1/asn1.h
3503 so they no longer are missing under -DNOPROTO.
3504 [Soren S. Jorvang <soren@t.dk>]
3507 Changes between 0.9.1c and 0.9.2b [22 Mar 1999]
3509 *) Make SSL_get_peer_cert_chain() work in servers. Unfortunately, it still
3510 doesn't work when the session is reused. Coming soon!
3513 *) Fix a security hole, that allows sessions to be reused in the wrong
3514 context thus bypassing client cert protection! All software that uses
3515 client certs and session caches in multiple contexts NEEDS PATCHING to
3516 allow session reuse! A fuller solution is in the works.
3517 [Ben Laurie, problem pointed out by Holger Reif, Bodo Moeller (and ???)]
3519 *) Some more source tree cleanups (removed obsolete files
3520 crypto/bf/asm/bf586.pl, test/test.txt and crypto/sha/asm/f.s; changed
3521 permission on "config" script to be executable) and a fix for the INSTALL
3523 [Ulf Moeller <ulf@fitug.de>]
3525 *) Remove some legacy and erroneous uses of malloc, free instead of
3527 [Lennart Bang <lob@netstream.se>, with minor changes by Steve]
3529 *) Make rsa_oaep_test return non-zero on error.
3530 [Ulf Moeller <ulf@fitug.de>]
3532 *) Add support for native Solaris shared libraries. Configure
3533 solaris-sparc-sc4-pic, make, then run shlib/solaris-sc4.sh. It'd be nice
3534 if someone would make that last step automatic.
3535 [Matthias Loepfe <Matthias.Loepfe@AdNovum.CH>]
3537 *) ctx_size was not built with the right compiler during "make links". Fixed.
3540 *) Change the meaning of 'ALL' in the cipher list. It now means "everything
3541 except NULL ciphers". This means the default cipher list will no longer
3542 enable NULL ciphers. They need to be specifically enabled e.g. with
3543 the string "DEFAULT:eNULL".
3546 *) Fix to RSA private encryption routines: if p < q then it would
3547 occasionally produce an invalid result. This will only happen with
3548 externally generated keys because OpenSSL (and SSLeay) ensure p > q.
3551 *) Be less restrictive and allow also `perl util/perlpath.pl
3552 /path/to/bin/perl' in addition to `perl util/perlpath.pl /path/to/bin',
3553 because this way one can also use an interpreter named `perl5' (which is
3554 usually the name of Perl 5.xxx on platforms where an Perl 4.x is still
3555 installed as `perl').
3556 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
3558 *) Let util/clean-depend.pl work also with older Perl 5.00x versions.
3559 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
3561 *) Fix Makefile.org so CC,CFLAG etc are passed to 'make links' add
3562 advapi32.lib to Win32 build and change the pem test comparision
3563 to fc.exe (thanks to Ulrich Kroener <kroneru@yahoo.com> for the
3564 suggestion). Fix misplaced ASNI prototypes and declarations in evp.h
3565 and crypto/des/ede_cbcm_enc.c.
3568 *) DES quad checksum was broken on big-endian architectures. Fixed.
3571 *) Comment out two functions in bio.h that aren't implemented. Fix up the
3572 Win32 test batch file so it (might) work again. The Win32 test batch file
3573 is horrible: I feel ill....
3576 *) Move various #ifdefs around so NO_SYSLOG, NO_DIRENT etc are now selected
3577 in e_os.h. Audit of header files to check ANSI and non ANSI
3578 sections: 10 functions were absent from non ANSI section and not exported
3579 from Windows DLLs. Fixed up libeay.num for new functions.
3582 *) Make `openssl version' output lines consistent.
3583 [Ralf S. Engelschall]
3585 *) Fix Win32 symbol export lists for BIO functions: Added
3586 BIO_get_ex_new_index, BIO_get_ex_num, BIO_get_ex_data and BIO_set_ex_data
3587 to ms/libeay{16,32}.def.
3588 [Ralf S. Engelschall]
3590 *) Second round of fixing the OpenSSL perl/ stuff. It now at least compiled
3591 fine under Unix and passes some trivial tests I've now added. But the
3592 whole stuff is horribly incomplete, so a README.1ST with a disclaimer was
3593 added to make sure no one expects that this stuff really works in the
3594 OpenSSL 0.9.2 release. Additionally I've started to clean the XS sources
3595 up and fixed a few little bugs and inconsistencies in OpenSSL.{pm,xs} and
3597 [Ralf S. Engelschall]
3599 *) Fix the generation of two part addresses in perl.
3600 [Kenji Miyake <kenji@miyake.org>, integrated by Ben Laurie]
3602 *) Add config entry for Linux on MIPS.
3603 [John Tobey <jtobey@channel1.com>]
3605 *) Make links whenever Configure is run, unless we are on Windoze.
3608 *) Permit extensions to be added to CRLs using crl_section in openssl.cnf.
3609 Currently only issuerAltName and AuthorityKeyIdentifier make any sense
3613 *) Add a useful kludge to allow package maintainers to specify compiler and
3614 other platforms details on the command line without having to patch the
3615 Configure script everytime: One now can use ``perl Configure
3616 <id>:<details>'', i.e. platform ids are allowed to have details appended
3617 to them (seperated by colons). This is treated as there would be a static
3618 pre-configured entry in Configure's %table under key <id> with value
3619 <details> and ``perl Configure <id>'' is called. So, when you want to
3620 perform a quick test-compile under FreeBSD 3.1 with pgcc and without
3621 assembler stuff you can use ``perl Configure "FreeBSD-elf:pgcc:-O6:::"''
3622 now, which overrides the FreeBSD-elf entry on-the-fly.
3623 [Ralf S. Engelschall]
3625 *) Disable new TLS1 ciphersuites by default: they aren't official yet.
3628 *) Allow DSO flags like -fpic, -fPIC, -KPIC etc. to be specified
3629 on the `perl Configure ...' command line. This way one can compile
3630 OpenSSL libraries with Position Independent Code (PIC) which is needed
3631 for linking it into DSOs.
3632 [Ralf S. Engelschall]
3634 *) Remarkably, export ciphers were totally broken and no-one had noticed!
3638 *) Cleaned up the LICENSE document: The official contact for any license
3639 questions now is the OpenSSL core team under openssl-core@openssl.org.
3640 And add a paragraph about the dual-license situation to make sure people
3641 recognize that _BOTH_ the OpenSSL license _AND_ the SSLeay license apply
3642 to the OpenSSL toolkit.
3643 [Ralf S. Engelschall]
3645 *) General source tree makefile cleanups: Made `making xxx in yyy...'
3646 display consistent in the source tree and replaced `/bin/rm' by `rm'.
3647 Additonally cleaned up the `make links' target: Remove unnecessary
3648 semicolons, subsequent redundant removes, inline point.sh into mklink.sh
3649 to speed processing and no longer clutter the display with confusing
3650 stuff. Instead only the actually done links are displayed.
3651 [Ralf S. Engelschall]
3653 *) Permit null encryption ciphersuites, used for authentication only. It used
3654 to be necessary to set the preprocessor define SSL_ALLOW_ENULL to do this.
3655 It is now necessary to set SSL_FORBID_ENULL to prevent the use of null
3659 *) Add a bunch of fixes to the PKCS#7 stuff. It used to sometimes reorder
3660 signed attributes when verifying signatures (this would break them),
3661 the detached data encoding was wrong and public keys obtained using
3662 X509_get_pubkey() weren't freed.
3665 *) Add text documentation for the BUFFER functions. Also added a work around
3666 to a Win95 console bug. This was triggered by the password read stuff: the
3667 last character typed gets carried over to the next fread(). If you were
3668 generating a new cert request using 'req' for example then the last
3669 character of the passphrase would be CR which would then enter the first
3673 *) Added the new `Includes OpenSSL Cryptography Software' button as
3674 doc/openssl_button.{gif,html} which is similar in style to the old SSLeay
3675 button and can be used by applications based on OpenSSL to show the
3676 relationship to the OpenSSL project.
3677 [Ralf S. Engelschall]
3679 *) Remove confusing variables in function signatures in files
3680 ssl/ssl_lib.c and ssl/ssl.h.
3681 [Lennart Bong <lob@kulthea.stacken.kth.se>]
3683 *) Don't install bss_file.c under PREFIX/include/
3684 [Lennart Bong <lob@kulthea.stacken.kth.se>]
3686 *) Get the Win32 compile working again. Modify mkdef.pl so it can handle
3687 functions that return function pointers and has support for NT specific
3688 stuff. Fix mk1mf.pl and VC-32.pl to support NT differences also. Various
3689 #ifdef WIN32 and WINNTs sprinkled about the place and some changes from
3690 unsigned to signed types: this was killing the Win32 compile.
3693 *) Add new certificate file to stack functions,
3694 SSL_add_dir_cert_subjects_to_stack() and
3695 SSL_add_file_cert_subjects_to_stack(). These largely supplant
3696 SSL_load_client_CA_file(), and can be used to add multiple certs easily
3697 to a stack (usually this is then handed to SSL_CTX_set_client_CA_list()).
3698 This means that Apache-SSL and similar packages don't have to mess around
3699 to add as many CAs as they want to the preferred list.
3702 *) Experiment with doxygen documentation. Currently only partially applied to
3704 See http://www.stack.nl/~dimitri/doxygen/index.html, and run doxygen with
3705 openssl.doxy as the configuration file.
3708 *) Get rid of remaining C++-style comments which strict C compilers hate.
3709 [Ralf S. Engelschall, pointed out by Carlos Amengual]
3711 *) Changed BN_RECURSION in bn_mont.c to BN_RECURSION_MONT so it is not
3712 compiled in by default: it has problems with large keys.
3715 *) Add a bunch of SSL_xxx() functions for configuring the temporary RSA and
3716 DH private keys and/or callback functions which directly correspond to
3717 their SSL_CTX_xxx() counterparts but work on a per-connection basis. This
3718 is needed for applications which have to configure certificates on a
3719 per-connection basis (e.g. Apache+mod_ssl) instead of a per-context basis
3721 For the RSA certificate situation is makes no difference, but
3722 for the DSA certificate situation this fixes the "no shared cipher"
3723 problem where the OpenSSL cipher selection procedure failed because the
3724 temporary keys were not overtaken from the context and the API provided
3725 no way to reconfigure them.
3726 The new functions now let applications reconfigure the stuff and they
3727 are in detail: SSL_need_tmp_RSA, SSL_set_tmp_rsa, SSL_set_tmp_dh,
3728 SSL_set_tmp_rsa_callback and SSL_set_tmp_dh_callback. Additionally a new
3729 non-public-API function ssl_cert_instantiate() is used as a helper
3730 function and also to reduce code redundancy inside ssl_rsa.c.
3731 [Ralf S. Engelschall]
3733 *) Move s_server -dcert and -dkey options out of the undocumented feature
3734 area because they are useful for the DSA situation and should be
3735 recognized by the users.
3736 [Ralf S. Engelschall]
3738 *) Fix the cipher decision scheme for export ciphers: the export bits are
3739 *not* within SSL_MKEY_MASK or SSL_AUTH_MASK, they are within
3740 SSL_EXP_MASK. So, the original variable has to be used instead of the
3741 already masked variable.
3742 [Richard Levitte <levitte@stacken.kth.se>]
3744 *) Fix 'port' variable from `int' to `unsigned int' in crypto/bio/b_sock.c
3745 [Richard Levitte <levitte@stacken.kth.se>]
3747 *) Change type of another md_len variable in pk7_doit.c:PKCS7_dataFinal()
3748 from `int' to `unsigned int' because it's a length and initialized by
3749 EVP_DigestFinal() which expects an `unsigned int *'.
3750 [Richard Levitte <levitte@stacken.kth.se>]
3752 *) Don't hard-code path to Perl interpreter on shebang line of Configure
3753 script. Instead use the usual Shell->Perl transition trick.
3754 [Ralf S. Engelschall]
3756 *) Make `openssl x509 -noout -modulus' functional also for DSA certificates
3757 (in addition to RSA certificates) to match the behaviour of `openssl dsa
3758 -noout -modulus' as it's already the case for `openssl rsa -noout
3759 -modulus'. For RSA the -modulus is the real "modulus" while for DSA
3760 currently the public key is printed (a decision which was already done by
3761 `openssl dsa -modulus' in the past) which serves a similar purpose.
3762 Additionally the NO_RSA no longer completely removes the whole -modulus
3763 option; it now only avoids using the RSA stuff. Same applies to NO_DSA
3765 [Ralf S. Engelschall]
3767 *) Add Arne Ansper's reliable BIO - this is an encrypted, block-digested
3768 BIO. See the source (crypto/evp/bio_ok.c) for more info.
3769 [Arne Ansper <arne@ats.cyber.ee>]
3771 *) Dump the old yucky req code that tried (and failed) to allow raw OIDs
3772 to be added. Now both 'req' and 'ca' can use new objects defined in the
3776 *) Add cool BIO that does syslog (or event log on NT).
3777 [Arne Ansper <arne@ats.cyber.ee>, integrated by Ben Laurie]
3779 *) Add support for new TLS ciphersuites, TLS_RSA_EXPORT56_WITH_RC4_56_MD5,
3780 TLS_RSA_EXPORT56_WITH_RC2_CBC_56_MD5 and
3781 TLS_RSA_EXPORT56_WITH_DES_CBC_SHA, as specified in "56-bit Export Cipher
3782 Suites For TLS", draft-ietf-tls-56-bit-ciphersuites-00.txt.
3785 *) Add preliminary config info for new extension code.
3788 *) Make RSA_NO_PADDING really use no padding.
3789 [Ulf Moeller <ulf@fitug.de>]
3791 *) Generate errors when private/public key check is done.
3794 *) Overhaul for 'crl' utility. New function X509_CRL_print. Partial support
3795 for some CRL extensions and new objects added.
3798 *) Really fix the ASN1 IMPLICIT bug this time... Partial support for private
3799 key usage extension and fuller support for authority key id.
3802 *) Add OAEP encryption for the OpenSSL crypto library. OAEP is the improved
3803 padding method for RSA, which is recommended for new applications in PKCS
3804 #1 v2.0 (RFC 2437, October 1998).
3805 OAEP (Optimal Asymmetric Encryption Padding) has better theoretical
3806 foundations than the ad-hoc padding used in PKCS #1 v1.5. It is secure
3807 against Bleichbacher's attack on RSA.
3808 [Ulf Moeller <ulf@fitug.de>, reformatted, corrected and integrated by
3811 *) Updates to the new SSL compression code
3812 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
3814 *) Fix so that the version number in the master secret, when passed
3815 via RSA, checks that if TLS was proposed, but we roll back to SSLv3
3816 (because the server will not accept higher), that the version number
3817 is 0x03,0x01, not 0x03,0x00
3818 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
3820 *) Run extensive memory leak checks on SSL apps. Fixed *lots* of memory
3821 leaks in ssl/ relating to new X509_get_pubkey() behaviour. Also fixes
3822 in apps/ and an unrelated leak in crypto/dsa/dsa_vrf.c
3825 *) Support for RAW extensions where an arbitrary extension can be
3826 created by including its DER encoding. See apps/openssl.cnf for
3830 *) Make sure latest Perl versions don't interpret some generated C array
3831 code as Perl array code in the crypto/err/err_genc.pl script.
3832 [Lars Weber <3weber@informatik.uni-hamburg.de>]
3834 *) Modify ms/do_ms.bat to not generate assembly language makefiles since
3835 not many people have the assembler. Various Win32 compilation fixes and
3836 update to the INSTALL.W32 file with (hopefully) more accurate Win32
3840 *) Modify configure script 'Configure' to automatically create crypto/date.h
3841 file under Win32 and also build pem.h from pem.org. New script
3842 util/mkfiles.pl to create the MINFO file on environments that can't do a
3843 'make files': perl util/mkfiles.pl >MINFO should work.
3846 *) Major rework of DES function declarations, in the pursuit of correctness
3847 and purity. As a result, many evil casts evaporated, and some weirdness,
3848 too. You may find this causes warnings in your code. Zapping your evil
3849 casts will probably fix them. Mostly.
3852 *) Fix for a typo in asn1.h. Bug fix to object creation script
3853 obj_dat.pl. It considered a zero in an object definition to mean
3854 "end of object": none of the objects in objects.h have any zeros
3855 so it wasn't spotted.
3856 [Steve Henson, reported by Erwann ABALEA <eabalea@certplus.com>]
3858 *) Add support for Triple DES Cipher Block Chaining with Output Feedback
3859 Masking (CBCM). In the absence of test vectors, the best I have been able
3860 to do is check that the decrypt undoes the encrypt, so far. Send me test
3861 vectors if you have them.
3864 *) Correct calculation of key length for export ciphers (too much space was
3865 allocated for null ciphers). This has not been tested!
3868 *) Modifications to the mkdef.pl for Win32 DEF file creation. The usage
3869 message is now correct (it understands "crypto" and "ssl" on its
3870 command line). There is also now an "update" option. This will update
3871 the util/ssleay.num and util/libeay.num files with any new functions.
3873 perl util/mkdef.pl crypto ssl update
3874 it will update them.
3877 *) Overhauled the Perl interface (perl/*):
3878 - ported BN stuff to OpenSSL's different BN library
3879 - made the perl/ source tree CVS-aware
3880 - renamed the package from SSLeay to OpenSSL (the files still contain
3881 their history because I've copied them in the repository)
3882 - removed obsolete files (the test scripts will be replaced
3883 by better Test::Harness variants in the future)
3884 [Ralf S. Engelschall]
3886 *) First cut for a very conservative source tree cleanup:
3887 1. merge various obsolete readme texts into doc/ssleay.txt
3888 where we collect the old documents and readme texts.
3889 2. remove the first part of files where I'm already sure that we no
3890 longer need them because of three reasons: either they are just temporary
3891 files which were left by Eric or they are preserved original files where
3892 I've verified that the diff is also available in the CVS via "cvs diff
3893 -rSSLeay_0_8_1b" or they were renamed (as it was definitely the case for
3894 the crypto/md/ stuff).
3895 [Ralf S. Engelschall]
3897 *) More extension code. Incomplete support for subject and issuer alt
3898 name, issuer and authority key id. Change the i2v function parameters
3899 and add an extra 'crl' parameter in the X509V3_CTX structure: guess
3900 what that's for :-) Fix to ASN1 macro which messed up
3901 IMPLICIT tag and add f_enum.c which adds a2i, i2a for ENUMERATED.
3904 *) Preliminary support for ENUMERATED type. This is largely copied from the
3908 *) Add new function, EVP_MD_CTX_copy() to replace frequent use of memcpy.
3909 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
3911 *) Make sure `make rehash' target really finds the `openssl' program.
3912 [Ralf S. Engelschall, Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
3914 *) Squeeze another 7% of speed out of MD5 assembler, at least on a P2. I'd
3915 like to hear about it if this slows down other processors.
3918 *) Add CygWin32 platform information to Configure script.
3919 [Alan Batie <batie@aahz.jf.intel.com>]
3921 *) Fixed ms/32all.bat script: `no_asm' -> `no-asm'
3922 [Rainer W. Gerling <gerling@mpg-gv.mpg.de>]
3924 *) New program nseq to manipulate netscape certificate sequences
3927 *) Modify crl2pkcs7 so it supports multiple -certfile arguments. Fix a
3931 *) Fixes to BN code. Previously the default was to define BN_RECURSION
3932 but the BN code had some problems that would cause failures when
3933 doing certificate verification and some other functions.
3934 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
3936 *) Add ASN1 and PEM code to support netscape certificate sequences.
3939 *) Add ASN1 and PEM code to support netscape certificate sequences.
3942 *) Add several PKIX and private extended key usage OIDs.
3945 *) Modify the 'ca' program to handle the new extension code. Modify
3946 openssl.cnf for new extension format, add comments.
3949 *) More X509 V3 changes. Fix typo in v3_bitstr.c. Add support to 'req'
3950 and add a sample to openssl.cnf so req -x509 now adds appropriate
3954 *) Continued X509 V3 changes. Add to other makefiles, integrate with the
3955 error code, add initial support to X509_print() and x509 application.
3958 *) Takes a deep breath and start addding X509 V3 extension support code. Add
3959 files in crypto/x509v3. Move original stuff to crypto/x509v3/old. All this
3960 stuff is currently isolated and isn't even compiled yet.
3963 *) Continuing patches for GeneralizedTime. Fix up certificate and CRL
3964 ASN1 to use ASN1_TIME and modify print routines to use ASN1_TIME_print.
3965 Removed the versions check from X509 routines when loading extensions:
3966 this allows certain broken certificates that don't set the version
3967 properly to be processed.
3970 *) Deal with irritating shit to do with dependencies, in YAAHW (Yet Another
3971 Ad Hoc Way) - Makefile.ssls now all contain local dependencies, which
3972 can still be regenerated with "make depend".
3975 *) Spelling mistake in C version of CAST-128.
3976 [Ben Laurie, reported by Jeremy Hylton <jeremy@cnri.reston.va.us>]
3978 *) Changes to the error generation code. The perl script err-code.pl
3979 now reads in the old error codes and retains the old numbers, only
3980 adding new ones if necessary. It also only changes the .err files if new
3981 codes are added. The makefiles have been modified to only insert errors
3982 when needed (to avoid needlessly modifying header files). This is done
3983 by only inserting errors if the .err file is newer than the auto generated
3984 C file. To rebuild all the error codes from scratch (the old behaviour)
3985 either modify crypto/Makefile.ssl to pass the -regen flag to err_code.pl
3986 or delete all the .err files.
3989 *) CAST-128 was incorrectly implemented for short keys. The C version has
3990 been fixed, but is untested. The assembler versions are also fixed, but
3991 new assembler HAS NOT BEEN GENERATED FOR WIN32 - the Makefile needs fixing
3992 to regenerate it if needed.
3993 [Ben Laurie, reported (with fix for C version) by Jun-ichiro itojun
3994 Hagino <itojun@kame.net>]
3996 *) File was opened incorrectly in randfile.c.
3997 [Ulf Möller <ulf@fitug.de>]
3999 *) Beginning of support for GeneralizedTime. d2i, i2d, check and print
4000 functions. Also ASN1_TIME suite which is a CHOICE of UTCTime or
4001 GeneralizedTime. ASN1_TIME is the proper type used in certificates et
4002 al: it's just almost always a UTCTime. Note this patch adds new error
4003 codes so do a "make errors" if there are problems.
4006 *) Correct Linux 1 recognition in config.
4007 [Ulf Möller <ulf@fitug.de>]
4009 *) Remove pointless MD5 hash when using DSA keys in ca.
4010 [Anonymous <nobody@replay.com>]
4012 *) Generate an error if given an empty string as a cert directory. Also
4013 generate an error if handed NULL (previously returned 0 to indicate an
4014 error, but didn't set one).
4015 [Ben Laurie, reported by Anonymous <nobody@replay.com>]
4017 *) Add prototypes to SSL methods. Make SSL_write's buffer const, at last.
4020 *) Fix the dummy function BN_ref_mod_exp() in rsaref.c to have the correct
4021 parameters. This was causing a warning which killed off the Win32 compile.
4024 *) Remove C++ style comments from crypto/bn/bn_local.h.
4025 [Neil Costigan <neil.costigan@celocom.com>]
4027 *) The function OBJ_txt2nid was broken. It was supposed to return a nid
4028 based on a text string, looking up short and long names and finally
4029 "dot" format. The "dot" format stuff didn't work. Added new function
4030 OBJ_txt2obj to do the same but return an ASN1_OBJECT and rewrote
4031 OBJ_txt2nid to use it. OBJ_txt2obj can also return objects even if the
4032 OID is not part of the table.
4035 *) Add prototypes to X509 lookup/verify methods, fixing a bug in
4036 X509_LOOKUP_by_alias().
4039 *) Sort openssl functions by name.
4042 *) Get the gendsa program working (hopefully) and add it to app list. Remove
4043 encryption from sample DSA keys (in case anyone is interested the password
4047 *) Make _all_ *_free functions accept a NULL pointer.
4048 [Frans Heymans <fheymans@isaserver.be>]
4050 *) If a DH key is generated in s3_srvr.c, don't blow it by trying to use
4052 [Anonymous <nobody@replay.com>]
4054 *) s_server should send the CAfile as acceptable CAs, not its own cert.
4055 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
4057 *) Don't blow it for numeric -newkey arguments to apps/req.
4058 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
4060 *) Temp key "for export" tests were wrong in s3_srvr.c.
4061 [Anonymous <nobody@replay.com>]
4063 *) Add prototype for temp key callback functions
4064 SSL_CTX_set_tmp_{rsa,dh}_callback().
4067 *) Make DH_free() tolerate being passed a NULL pointer (like RSA_free() and
4068 DSA_free()). Make X509_PUBKEY_set() check for errors in d2i_PublicKey().
4071 *) X509_name_add_entry() freed the wrong thing after an error.
4072 [Arne Ansper <arne@ats.cyber.ee>]
4074 *) rsa_eay.c would attempt to free a NULL context.
4075 [Arne Ansper <arne@ats.cyber.ee>]
4077 *) BIO_s_socket() had a broken should_retry() on Windoze.
4078 [Arne Ansper <arne@ats.cyber.ee>]
4080 *) BIO_f_buffer() didn't pass on BIO_CTRL_FLUSH.
4081 [Arne Ansper <arne@ats.cyber.ee>]
4083 *) Make sure the already existing X509_STORE->depth variable is initialized
4084 in X509_STORE_new(), but document the fact that this variable is still
4085 unused in the certificate verification process.
4086 [Ralf S. Engelschall]
4088 *) Fix the various library and apps files to free up pkeys obtained from
4089 X509_PUBKEY_get() et al. Also allow x509.c to handle netscape extensions.
4092 *) Fix reference counting in X509_PUBKEY_get(). This makes
4093 demos/maurice/example2.c work, amongst others, probably.
4094 [Steve Henson and Ben Laurie]
4096 *) First cut of a cleanup for apps/. First the `ssleay' program is now named
4097 `openssl' and second, the shortcut symlinks for the `openssl <command>'
4098 are no longer created. This way we have a single and consistent command
4099 line interface `openssl <command>', similar to `cvs <command>'.
4100 [Ralf S. Engelschall, Paul Sutton and Ben Laurie]
4102 *) ca.c: move test for DSA keys inside #ifndef NO_DSA. Make pubkey
4103 BIT STRING wrapper always have zero unused bits.
4106 *) Add CA.pl, perl version of CA.sh, add extended key usage OID.
4109 *) Make the top-level INSTALL documentation easier to understand.
4112 *) Makefiles updated to exit if an error occurs in a sub-directory
4113 make (including if user presses ^C) [Paul Sutton]
4115 *) Make Montgomery context stuff explicit in RSA data structure.
4118 *) Fix build order of pem and err to allow for generated pem.h.
4121 *) Fix renumbering bug in X509_NAME_delete_entry().
4124 *) Enhanced the err-ins.pl script so it makes the error library number
4125 global and can add a library name. This is needed for external ASN1 and
4126 other error libraries.
4129 *) Fixed sk_insert which never worked properly.
4132 *) Fix ASN1 macros so they can handle indefinite length construted
4133 EXPLICIT tags. Some non standard certificates use these: they can now
4137 *) Merged the various old/obsolete SSLeay documentation files (doc/xxx.doc)
4138 into a single doc/ssleay.txt bundle. This way the information is still
4139 preserved but no longer messes up this directory. Now it's new room for
4140 the new set of documenation files.
4141 [Ralf S. Engelschall]
4143 *) SETs were incorrectly DER encoded. This was a major pain, because they
4144 shared code with SEQUENCEs, which aren't coded the same. This means that
4145 almost everything to do with SETs or SEQUENCEs has either changed name or
4146 number of arguments.
4147 [Ben Laurie, based on a partial fix by GP Jayan <gp@nsj.co.jp>]
4149 *) Fix test data to work with the above.
4152 *) Fix the RSA header declarations that hid a bug I fixed in 0.9.0b but
4153 was already fixed by Eric for 0.9.1 it seems.
4154 [Ben Laurie - pointed out by Ulf Möller <ulf@fitug.de>]
4156 *) Autodetect FreeBSD3.
4159 *) Fix various bugs in Configure. This affects the following platforms:
4163 unixware-2.0-pentium
4167 *) Eliminate generated files from CVS. Reorder tests to regenerate files
4168 before they are needed.
4171 *) Generate Makefile.ssl from Makefile.org (to keep CVS happy).
4175 Changes between 0.9.1b and 0.9.1c [23-Dec-1998]
4177 *) Added OPENSSL_VERSION_NUMBER to crypto/crypto.h and
4178 changed SSLeay to OpenSSL in version strings.
4179 [Ralf S. Engelschall]
4181 *) Some fixups to the top-level documents.
4184 *) Fixed the nasty bug where rsaref.h was not found under compile-time
4185 because the symlink to include/ was missing.
4186 [Ralf S. Engelschall]
4188 *) Incorporated the popular no-RSA/DSA-only patches
4189 which allow to compile a RSA-free SSLeay.
4190 [Andrew Cooke / Interrader Ldt., Ralf S. Engelschall]
4192 *) Fixed nasty rehash problem under `make -f Makefile.ssl links'
4193 when "ssleay" is still not found.
4194 [Ralf S. Engelschall]
4196 *) Added more platforms to Configure: Cray T3E, HPUX 11,
4197 [Ralf S. Engelschall, Beckmann <beckman@acl.lanl.gov>]
4199 *) Updated the README file.
4200 [Ralf S. Engelschall]
4202 *) Added various .cvsignore files in the CVS repository subdirs
4203 to make a "cvs update" really silent.
4204 [Ralf S. Engelschall]
4206 *) Recompiled the error-definition header files and added
4207 missing symbols to the Win32 linker tables.
4208 [Ralf S. Engelschall]
4210 *) Cleaned up the top-level documents;
4211 o new files: CHANGES and LICENSE
4212 o merged VERSION, HISTORY* and README* files a CHANGES.SSLeay
4213 o merged COPYRIGHT into LICENSE
4214 o removed obsolete TODO file
4215 o renamed MICROSOFT to INSTALL.W32
4216 [Ralf S. Engelschall]
4218 *) Removed dummy files from the 0.9.1b source tree:
4219 crypto/asn1/x crypto/bio/cd crypto/bio/fg crypto/bio/grep crypto/bio/vi
4220 crypto/bn/asm/......add.c crypto/bn/asm/a.out crypto/dsa/f crypto/md5/f
4221 crypto/pem/gmon.out crypto/perlasm/f crypto/pkcs7/build crypto/rsa/f
4222 crypto/sha/asm/f crypto/threads/f ms/zzz ssl/f ssl/f.mak test/f
4223 util/f.mak util/pl/f util/pl/f.mak crypto/bf/bf_locl.old apps/f
4224 [Ralf S. Engelschall]
4226 *) Added various platform portability fixes.
4229 *) The Genesis of the OpenSSL rpject:
4230 We start with the latest (unreleased) SSLeay version 0.9.1b which Eric A.
4231 Young and Tim J. Hudson created while they were working for C2Net until
4233 [The OpenSSL Project]
4236 Changes between 0.9.0b and 0.9.1b [not released]
4238 *) Updated a few CA certificates under certs/
4241 *) Changed some BIGNUM api stuff.
4244 *) Various platform ports: OpenBSD, Ultrix, IRIX 64bit, NetBSD,
4245 DGUX x86, Linux Alpha, etc.
4248 *) New COMP library [crypto/comp/] for SSL Record Layer Compression:
4249 RLE (dummy implemented) and ZLIB (really implemented when ZLIB is
4253 *) Add -strparse option to asn1pars program which parses nested
4255 [Dr Stephen Henson <shenson@bigfoot.com>]
4257 *) Added "oid_file" to ssleay.cnf for "ca" and "req" programs.
4260 *) DSA fix for "ca" program.
4263 *) Added "-genkey" option to "dsaparam" program.
4266 *) Added RIPE MD160 (rmd160) message digest.
4269 *) Added -a (all) option to "ssleay version" command.
4272 *) Added PLATFORM define which is the id given to Configure.
4275 *) Added MemCheck_XXXX functions to crypto/mem.c for memory checking.
4278 *) Extended the ASN.1 parser routines.
4281 *) Extended BIO routines to support REUSEADDR, seek, tell, etc.
4284 *) Added a BN_CTX to the BN library.
4287 *) Fixed the weak key values in DES library
4290 *) Changed API in EVP library for cipher aliases.
4293 *) Added support for RC2/64bit cipher.
4296 *) Converted the lhash library to the crypto/mem.c functions.
4299 *) Added more recognized ASN.1 object ids.
4302 *) Added more RSA padding checks for SSL/TLS.
4305 *) Added BIO proxy/filter functionality.
4308 *) Added extra_certs to SSL_CTX which can be used
4309 send extra CA certificates to the client in the CA cert chain sending
4310 process. It can be configured with SSL_CTX_add_extra_chain_cert().
4313 *) Now Fortezza is denied in the authentication phase because
4314 this is key exchange mechanism is not supported by SSLeay at all.
4317 *) Additional PKCS1 checks.
4320 *) Support the string "TLSv1" for all TLS v1 ciphers.
4323 *) Added function SSL_get_ex_data_X509_STORE_CTX_idx() which gives the
4324 ex_data index of the SSL context in the X509_STORE_CTX ex_data.
4327 *) Fixed a few memory leaks.
4330 *) Fixed various code and comment typos.
4333 *) A minor bug in ssl/s3_clnt.c where there would always be 4 0
4334 bytes sent in the client random.
4335 [Edward Bishop <ebishop@spyglass.com>]
projects / openssl.git / blob