5 Changes between 0.9.6 and 0.9.7 [xx XXX 2001]
7 Both OpenSSL 0.9.6a (bugfix release, 5 Apr 2001) and OpenSSL 0.9.7
8 are based on OpenSSL 0.9.6.
9 Change log entries are tagged as follows:
10 -) applies to 0.9.6a (/0.9.6b) only
11 *) applies to 0.9.6a (/0.9.6b) and 0.9.7
12 +) applies to 0.9.7 only
14 +) New functions X509_PURPOSE_set() and X509_TRUST_set() to handle
15 setting of purpose and trust fields. New X509_STORE trust and
16 purpose functions and tidy up setting in other SSL functions.
19 +) Add copies of X509_STORE_CTX fields and callbacks to X509_STORE
20 structure. These are inherited by X509_STORE_CTX when it is
21 initialised. This allows various defaults to be set in the
22 X509_STORE structure (such as flags for CRL checking and custom
23 purpose or trust settings) for functions which only use X509_STORE_CTX
24 internally such as S/MIME.
26 Modify X509_STORE_CTX_purpose_inherit() so it only sets purposes and
27 trust settings if they are not set in X509_STORE. This allows X509_STORE
28 purposes and trust (in S/MIME for example) to override any set by default.
30 Add command line options for CRL checking to smime, s_client and s_server
34 +) Initial CRL based revocation checking. If the CRL checking flag(s)
35 are set then the CRL is looked up in the X509_STORE structure and
36 its validity and signature checked, then if the certificate is found
37 in the CRL the verify fails with a revoked error.
39 Various new CRL related callbacks added to X509_STORE_CTX structure.
41 Command line options added to 'verify' application to support this.
43 This needs some additional work, such as being able to handle multiple
44 CRLs with different times, extension based lookup (rather than just
45 by subject name) and ultimately more complete V2 CRL extension
49 +) Add a general user interface API. This is designed to replace things
50 like des_read_password and friends (backward compatibility functions
51 using this new API are provided). The purpose is to remove prompting
52 functions from the DES code section as well as provide for prompting
53 through dialog boxes in a window system and the like.
56 *) In versions up to 0.9.6, RAND_file_name() resorted to file ".rnd"
57 in the current directory if neither $RANDFILE nor $HOME was set.
58 RAND_file_name() in 0.9.6a returned NULL in this case. This has
59 caused some confusion to Windows users who haven't defined $HOME.
60 Thus RAND_file_name() is changed again: e_os.h can define a
61 DEFAULT_HOME, which will be used if $HOME is not set.
62 For Windows, we use "C:"; on other platforms, we still require
63 environment variables.
65 +) Add "ex_data" support to ENGINE so implementations can add state at a
66 per-structure level rather than having to store it globally.
69 +) Make it possible for ENGINE structures to be copied when retrieved by
70 ENGINE_by_id() if the ENGINE specifies a new flag: ENGINE_FLAGS_BY_ID_COPY.
71 This causes the "original" ENGINE structure to act like a template,
72 analogous to the RSA vs. RSA_METHOD type of separation. Because of this
73 operational state can be localised to each ENGINE structure, despite the
74 fact they all share the same "methods". New ENGINE structures returned in
75 this case have no functional references and the return value is the single
76 structural reference. This matches the single structural reference returned
77 by ENGINE_by_id() normally, when it is incremented on the pre-existing
81 +) Fix various bugs related to DSA S/MIME verification. Handle missing
82 parameters in DSA public key structures and return an error in the
83 DSA routines if parameters are absent.
86 +) Fix ASN1 decoder when decoding type ANY and V_ASN1_OTHER: since this
87 needs to match any other type at all we need to manually clear the
91 +) Changes to the "openssl engine" utility to include;
92 - verbosity levels ('-v', '-vv', and '-vvv') that provide information
93 about an ENGINE's available control commands.
94 - executing control commands from command line arguments using the
95 '-pre' and '-post' switches. '-post' is only used if '-t' is
96 specified and the ENGINE is successfully initialised. The syntax for
97 the individual commands are colon-separated, for example;
98 openssl engine chil -pre FORK_CHECK:0 -pre SO_PATH:/lib/test.so
101 +) New dynamic control command support for ENGINEs. ENGINEs can now
102 declare their own commands (numbers), names (strings), descriptions,
103 and input types for run-time discovery by calling applications. A
104 subset of these commands are implicitly classed as "executable"
105 depending on their input type, and only these can be invoked through
106 the new string-based API function ENGINE_ctrl_cmd_string(). (Eg. this
107 can be based on user input, config files, etc). The distinction is
108 that "executable" commands cannot return anything other than a boolean
109 result and can only support numeric or string input, whereas some
110 discoverable commands may only be for direct use through
111 ENGINE_ctrl(), eg. supporting the exchange of binary data, function
112 pointers, or other custom uses. The "executable" commands are to
113 support parameterisations of ENGINE behaviour that can be
114 unambiguously defined by ENGINEs and used consistently across any
115 OpenSSL-based application. Commands have been added to all the
116 existing hardware-supporting ENGINEs, noticeably "SO_PATH" to allow
117 control over shared-library paths without source code alterations.
120 +) Changed all ENGINE implementations to dynamically allocate their
121 ENGINEs rather than declaring them statically. Apart from this being
122 necessary with the removal of the ENGINE_FLAGS_MALLOCED distinction,
123 this also allows the implementations to compile without using the
124 internal engine_int.h header.
127 +) Minor adjustment to "rand" code. RAND_get_rand_method() now returns a
128 'const' value. Any code that should be able to modify a RAND_METHOD
129 should already have non-const pointers to it (ie. they should only
130 modify their own ones).
133 +) Made a variety of little tweaks to the ENGINE code.
134 - "atalla" and "ubsec" string definitions were moved from header files
135 to C code. "nuron" string definitions were placed in variables
136 rather than hard-coded - allowing parameterisation of these values
137 later on via ctrl() commands.
138 - Removed unused "#if 0"'d code.
139 - Fixed engine list iteration code so it uses ENGINE_free() to release
140 structural references.
141 - Constified the RAND_METHOD element of ENGINE structures.
142 - Constified various get/set functions as appropriate and added
143 missing functions (including a catch-all ENGINE_cpy that duplicates
144 all ENGINE values onto a new ENGINE except reference counts/state).
145 - Removed NULL parameter checks in get/set functions. Setting a method
146 or function to NULL is a way of cancelling out a previously set
147 value. Passing a NULL ENGINE parameter is just plain stupid anyway
148 and doesn't justify the extra error symbols and code.
149 - Deprecate the ENGINE_FLAGS_MALLOCED define and move the area for
150 flags from engine_int.h to engine.h.
151 - Changed prototypes for ENGINE handler functions (init(), finish(),
152 ctrl(), key-load functions, etc) to take an (ENGINE*) parameter.
155 *) Move 'if (!initialized) RAND_poll()' into regions protected by
156 CRYPTO_LOCK_RAND. This is not strictly necessary, but avoids
157 having multiple threads call RAND_poll() concurrently.
160 *) In crypto/rand/md_rand.c, replace 'add_do_not_lock' flag by a
161 combination of a flag and a thread ID variable.
162 Otherwise while one thread is in ssleay_rand_bytes (which sets the
163 flag), *other* threads can enter ssleay_add_bytes without obeying
164 the CRYPTO_LOCK_RAND lock (and may even illegaly release the lock
165 that they do not hold after the first thread unsets add_do_not_lock).
168 +) Implement binary inversion algorithm for BN_mod_inverse in addition
169 to the algorithm using long divison. The binary algorithm can be
170 used only if the modulus is odd. On 32-bit systems, it is faster
171 only for relatively small moduli (roughly 20-30% for 128-bit moduli,
172 roughly 5-15% for 256-bit moduli), so we use it only for moduli
173 up to 450 bits. In 64-bit environments, the binary algorithm
174 appears to be advantageous for much longer moduli; here we use it
175 for moduli up to 2048 bits.
178 *) Change bctest again: '-x' expressions are not available in all
182 -) OpenSSL 0.9.6a released [5 Apr 2001]
184 *) Fix a couple of memory leaks in PKCS7_dataDecode()
185 [Steve Henson, reported by Heyun Zheng <hzheng@atdsprint.com>]
187 *) Change Configure and Makefiles to provide EXE_EXT, which will contain
188 the default extension for executables, if any. Also, make the perl
189 scripts that use symlink() to test if it really exists and use "cp"
190 if it doesn't. All this made OpenSSL compilable and installable in
194 +) Rewrite CHOICE field setting in ASN1_item_ex_d2i(). The old code
195 could not support the combine flag in choice fields.
198 -) Fix for asn1_GetSequence() for indefinite length constructed data.
199 If SEQUENCE is length is indefinite just set c->slen to the total
200 amount of data available.
201 [Steve Henson, reported by shige@FreeBSD.org]
202 [This change does not apply to 0.9.7.]
204 *) Change bctest to avoid here-documents inside command substitution
205 (workaround for FreeBSD /bin/sh bug).
206 For compatibility with Ultrix, avoid shell functions (introduced
207 in the bctest version that searches along $PATH).
210 *) Rename 'des_encrypt' to 'des_encrypt1'. This avoids the clashes
211 with des_encrypt() defined on some operating systems, like Solaris
215 *) Check the result of RSA-CRT (see D. Boneh, R. DeMillo, R. Lipton:
216 On the Importance of Eliminating Errors in Cryptographic
217 Computations, J. Cryptology 14 (2001) 2, 101-119,
218 http://theory.stanford.edu/~dabo/papers/faults.ps.gz).
221 *) MIPS assembler BIGNUM division bug fix.
224 *) Disabled incorrect Alpha assembler code.
227 -) Fix PKCS#7 decode routines so they correctly update the length
228 after reading an EOC for the EXPLICIT tag.
230 [This change does not apply to 0.9.7.]
232 *) Fix bug in PKCS#12 key generation routines. This was triggered
233 if a 3DES key was generated with a 0 initial byte. Include
234 PKCS12_BROKEN_KEYGEN compilation option to retain the old
235 (but broken) behaviour.
238 *) Enhance bctest to search for a working bc along $PATH and print
240 [Tim Rice <tim@multitalents.net> via Richard Levitte]
242 +) Add a 'copy_extensions' option to the 'ca' utility. This copies
243 extensions from a certificate request to the certificate.
246 +) Allow multiple 'certopt' and 'nameopt' options to be separated
247 by commas. Add 'namopt' and 'certopt' options to the 'ca' config
248 file: this allows the display of the certificate about to be
249 signed to be customised, to allow certain fields to be included
250 or excluded and extension details. The old system didn't display
251 multicharacter strings properly, omitted fields not in the policy
252 and couldn't display additional details such as extensions.
255 *) Fix memory leaks in err.c: free err_data string if necessary;
256 don't write to the wrong index in ERR_set_error_data.
259 +) Function EC_POINTs_mul for simultaneous scalar multiplication
260 of an arbitrary number of elliptic curve points, optionally
261 including the generator defined for the EC_GROUP.
262 EC_POINT_mul is a simple wrapper function for the typical case
263 that the point list has just one item (besides the optional
267 +) First EC_METHODs for curves over GF(p):
269 EC_GFp_simple_method() uses the basic BN_mod_mul and BN_mod_sqr
270 operations and provides various method functions that can also
271 operate with faster implementations of modular arithmetic.
273 EC_GFp_mont_method() reuses most functions that are part of
274 EC_GFp_simple_method, but uses Montgomery arithmetic.
276 [Bodo Moeller; point addition and point doubling
277 implementation directly derived from source code provided by
278 Lenka Fibikova <fibikova@exp-math.uni-essen.de>]
280 +) Framework for elliptic curves (crypto/ec/ec.h, crypto/ec/ec_lcl.h,
283 Curves are EC_GROUP objects (with an optional group generator)
284 based on EC_METHODs that are built into the library.
286 Points are EC_POINT objects based on EC_GROUP objects.
288 Most of the framework would be able to handle curves over arbitrary
289 finite fields, but as there are no obvious types for fields other
290 than GF(p), some functions are limited to that for now.
293 +) Add the -HTTP option to s_server. It is similar to -WWW, but requires
294 that the file contains a complete HTTP response.
297 +) Add the ec directory to mkdef.pl and mkfiles.pl. In mkdef.pl
298 change the def and num file printf format specifier from "%-40sXXX"
299 to "%-39s XXX". The latter will always guarantee a space after the
300 field while the former will cause them to run together if the field
301 is 40 of more characters long.
304 +) Constify the cipher and digest 'method' functions and structures
305 and modify related functions to take constant EVP_MD and EVP_CIPHER
309 *) Implement ssl23_peek (analogous to ssl23_read), which previously
313 *) Replace rdtsc with _emit statements for VC++ version 5.
314 [Jeremy Cooper <jeremy@baymoo.org>]
316 +) Hide BN_CTX structure details in bn_lcl.h instead of publishing them
317 in <openssl/bn.h>. Also further increase BN_CTX_NUM to 32.
320 +) Modify EVP_Digest*() routines so they now return values. Although the
321 internal software routines can never fail additional hardware versions
325 +) Clean up crypto/err/err.h and change some error codes to avoid conflicts:
327 Previously ERR_R_FATAL was too small and coincided with ERR_LIB_PKCS7
328 (= ERR_R_PKCS7_LIB); it is now 64 instead of 32.
331 ERR_R_NESTED_ASN1_ERROR
333 ERR_R_MISSING_ASN1_EOS
334 were 4 .. 9, conflicting with
335 ERR_LIB_RSA (= ERR_R_RSA_LIB)
337 ERR_LIB_PEM (= ERR_R_PEM_LIB).
338 They are now 58 .. 63 (i.e., just below ERR_R_FATAL).
340 Add new error code 'ERR_R_INTERNAL_ERROR'.
343 +) Don't overuse locks in crypto/err/err.c: For data retrieval, CRYPTO_r_lock
347 +) New option '-subj arg' for 'openssl req' and 'openssl ca'. This
348 sets the subject name for a new request or supersedes the
349 subject name in a given request. Formats that can be parsed are
350 'CN=Some Name, OU=myOU, C=IT'
352 'CN=Some Name/OU=myOU/C=IT'.
354 Add options '-batch' and '-verbose' to 'openssl req'.
355 [Massimiliano Pala <madwolf@hackmasters.net>]
357 *) Make it possible to reuse SSLv2 sessions.
360 +) Introduce the possibility to access global variables through
361 functions on platform were that's the best way to handle exporting
362 global variables in shared libraries. To enable this functionality,
363 one must configure with "EXPORT_VAR_AS_FN" or defined the C macro
364 "OPENSSL_EXPORT_VAR_AS_FUNCTION" in crypto/opensslconf.h (the latter
365 is normally done by Configure or something similar).
367 To implement a global variable, use the macro OPENSSL_IMPLEMENT_GLOBAL
368 in the source file (foo.c) like this:
370 OPENSSL_IMPLEMENT_GLOBAL(int,foo)=1;
371 OPENSSL_IMPLEMENT_GLOBAL(double,bar);
373 To declare a global variable, use the macros OPENSSL_DECLARE_GLOBAL
374 and OPENSSL_GLOBAL_REF in the header file (foo.h) like this:
376 OPENSSL_DECLARE_GLOBAL(int,foo);
377 #define foo OPENSSL_GLOBAL_REF(foo)
378 OPENSSL_DECLARE_GLOBAL(double,bar);
379 #define bar OPENSSL_GLOBAL_REF(bar)
381 The #defines are very important, and therefore so is including the
382 header file everywere where the defined globals are used.
384 The macro OPENSSL_EXPORT_VAR_AS_FUNCTION also affects the definition
385 of ASN.1 items, but that structure is a bt different.
387 The largest change is in util/mkdef.pl which has been enhanced with
388 better and easier to understand logic to choose which symbols should
389 go into the Windows .def files as well as a number of fixes and code
390 cleanup (among others, algorithm keywords are now sorted
391 lexicographically to avoid constant rewrites).
394 *) In copy_email() check for >= 0 as a return value for
395 X509_NAME_get_index_by_NID() since 0 is a valid index.
396 [Steve Henson reported by Massimiliano Pala <madwolf@opensca.org>]
398 +) In BN_div() keep a copy of the sign of 'num' before writing the
399 result to 'rm' because if rm==num the value will be overwritten
400 and produce the wrong result if 'num' is negative: this caused
401 problems with BN_mod() and BN_nnmod().
404 +) Function OCSP_request_verify(). This checks the signature on an
405 OCSP request and verifies the signer certificate. The signer
406 certificate is just checked for a generic purpose and OCSP request
410 +) Add OCSP_check_validity() function to check the validity of OCSP
411 responses. OCSP responses are prepared in real time and may only
412 be a few seconds old. Simply checking that the current time lies
413 between thisUpdate and nextUpdate max reject otherwise valid responses
414 caused by either OCSP responder or client clock innacuracy. Instead
415 we allow thisUpdate and nextUpdate to fall within a certain period of
416 the current time. The age of the response can also optionally be
417 checked. Two new options -validity_period and -status_age added to
421 +) If signature or public key algorithm is unrecognized print out its
422 OID rather that just UNKOWN.
425 *) Avoid coredump with unsupported or invalid public keys by checking if
426 X509_get_pubkey() fails in PKCS7_verify(). Fix memory leak when
427 PKCS7_verify() fails with non detached data.
430 +) Change OCSP_cert_to_id() to tolerate a NULL subject certificate and
431 OCSP_cert_id_new() a NULL serialNumber. This allows a partial certificate
432 ID to be generated from the issuer certificate alone which can then be
433 passed to OCSP_id_issuer_cmp().
436 +) New compilation option ASN1_ITEM_FUNCTIONS. This causes the new
437 ASN1 modules to export functions returning ASN1_ITEM pointers
438 instead of the ASN1_ITEM structures themselves. This adds several
439 new macros which allow the underlying ASN1 function/structure to
440 be accessed transparently. As a result code should not use ASN1_ITEM
441 references directly (such as &X509_it) but instead use the relevant
442 macros (such as ASN1_ITEM_rptr(X509)). This option is to allow
443 use of the new ASN1 code on platforms where exporting structures
444 is problematical (for example in shared libraries) but exporting
445 functions returning pointers to structures is not.
448 +) Add support for overriding the generation of SSL/TLS session IDs.
449 These callbacks can be registered either in an SSL_CTX or per SSL.
450 The purpose of this is to allow applications to control, if they wish,
451 the arbitrary values chosen for use as session IDs, particularly as it
452 can be useful for session caching in multiple-server environments. A
453 command-line switch for testing this (and any client code that wishes
454 to use such a feature) has been added to "s_server".
455 [Geoff Thorpe, Lutz Jaenicke]
457 +) Modify mkdef.pl to recognise and parse prprocessor conditionals
458 of the form '#if defined(...) || defined(...) || ...' and
459 '#if !defined(...) && !defined(...) && ...'. This also avoids
460 the growing number of special cases it was previously handling.
463 *) Don't use getenv in library functions when run as setuid/setgid.
464 New function OPENSSL_issetugid().
467 +) Make all configuration macros available for application by making
468 sure they are available in opensslconf.h, by giving them names starting
469 with "OPENSSL_" to avoid conflicts with other packages and by making
470 sure e_os2.h will cover all platform-specific cases together with
472 Additionally, it is now possible to define configuration/platform-
473 specific names (called "system identities"). In the C code, these
474 are prefixed with "OPENSSL_SYSNAME_". e_os2.h will create another
475 macro with the name beginning with "OPENSSL_SYS_", which is determined
476 from "OPENSSL_SYSNAME_*" or compiler-specific macros depending on
480 +) New option -set_serial to 'req' and 'x509' this allows the serial
481 number to use to be specified on the command line. Previously self
482 signed certificates were hard coded with serial number 0 and the
483 CA options of 'x509' had to use a serial number in a file which was
487 *) Avoid false positives in memory leak detection code (crypto/mem_dbg.c)
488 due to incorrect handling of multi-threading:
490 1. Fix timing glitch in the MemCheck_off() portion of CRYPTO_mem_ctrl().
492 2. Fix logical glitch in is_MemCheck_on() aka CRYPTO_is_mem_check_on().
494 3. Count how many times MemCheck_off() has been called so that
495 nested use can be treated correctly. This also avoids
496 inband-signalling in the previous code (which relied on the
497 assumption that thread ID 0 is impossible).
500 +) New options to 'ca' utility to support V2 CRL entry extensions.
501 Currently CRL reason, invalidity date and hold instruction are
502 supported. Add new CRL extensions to V3 code and some new objects.
505 *) Add "-rand" option also to s_client and s_server.
508 +) New function EVP_CIPHER_CTX_set_padding() this is used to
509 disable standard block padding (aka PKCS#5 padding) in the EVP
510 API, which was previously mandatory. This means that the data is
511 not padded in any way and so the total length much be a multiple
512 of the block size, otherwise an error occurs.
515 +) Initial (incomplete) OCSP SSL support.
518 *) Fix CPU detection on Irix 6.x.
519 [Kurt Hockenbury <khockenb@stevens-tech.edu> and
520 "Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
522 +) New function OCSP_parse_url(). This splits up a URL into its host,
523 port and path components: primarily to parse OCSP URLs. New -url
524 option to ocsp utility.
527 +) New nonce behavior. The return value of OCSP_check_nonce() now
528 reflects the various checks performed. Applications can decide
529 whether to tolerate certain situations such as an absent nonce
530 in a response when one was present in a request: the ocsp application
531 just prints out a warning. New function OCSP_add1_basic_nonce()
532 this is to allow responders to include a nonce in a response even if
533 the request is nonce-less.
536 *) Fix X509_NAME bug which produced incorrect encoding if X509_NAME
538 [This change does not apply to 0.9.7.]
540 *) Use the cached encoding of an X509_NAME structure rather than
541 copying it. This is apparently the reason for the libsafe "errors"
542 but the code is actually correct.
545 +) Disable stdin buffering in load_cert (apps/apps.c) so that no certs are
546 skipped when using openssl x509 multiple times on a single input file,
547 e.g. "(openssl x509 -out cert1; openssl x509 -out cert2) <certs".
550 +) Make ASN1_UTCTIME_set_string() and ASN1_GENERALIZEDTIME_set_string()
551 set string type: to handle setting ASN1_TIME structures. Fix ca
552 utility to correctly initialize revocation date of CRLs.
555 +) New option SSL_OP_CIPHER_SERVER_PREFERENCE allows the server to override
556 the clients preferred ciphersuites and rather use its own preferences.
557 Should help to work around M$ SGC (Server Gated Cryptography) bug in
558 Internet Explorer by ensuring unchanged hash method during stepup.
561 +) Make mkdef.pl recognise all DECLARE_ASN1 macros, change rijndael
562 to aes and add a new 'exist' option to print out symbols that don't
566 +) Additional options to ocsp utility to allow flags to be set and
567 additional certificates supplied.
570 +) Add the option -VAfile to 'openssl ocsp', so the user can give the
571 OCSP client a number of certificate to only verify the response
575 *) Add new function BN_rand_range(), and fix DSA_sign_setup() to prevent
576 Bleichenbacher's DSA attack.
577 Extend BN_[pseudo_]rand: As before, top=1 forces the highest two bits
578 to be set and top=0 forces the highest bit to be set; top=-1 is new
579 and leaves the highest bit random.
580 [Ulf Moeller, Bodo Moeller]
582 +) Update Rijndael code to version 3.0 and change EVP AES ciphers to
583 handle the new API. Currently only ECB, CBC modes supported. Add new
584 AES OIDs. Add TLS AES ciphersuites as described in the "AES Ciphersuites
585 for TLS" draft-ietf-tls-ciphersuite-03.txt.
586 [Ben Laurie, Steve Henson]
588 *) In the NCONF_...-based implementations for CONF_... queries
589 (crypto/conf/conf_lib.c), if the input LHASH is NULL, avoid using
590 a temporary CONF structure with the data component set to NULL
591 (which gives segmentation faults in lh_retrieve).
592 Instead, use NULL for the CONF pointer in CONF_get_string and
593 CONF_get_number (which may use environment variables) and directly
594 return NULL from CONF_get_section.
597 *) Fix potential buffer overrun for EBCDIC.
600 +) New function OCSP_copy_nonce() to copy nonce value (if present) from
604 +) Functions for OCSP responders. OCSP_request_onereq_count(),
605 OCSP_request_onereq_get0(), OCSP_onereq_get0_id() and OCSP_id_get0_info()
606 extract information from a certificate request. OCSP_response_create()
607 creates a response and optionally adds a basic response structure.
608 OCSP_basic_add1_status() adds a complete single response to a basic
609 reponse and returns the OCSP_SINGLERESP structure just added (to allow
610 extensions to be included for example). OCSP_basic_add1_cert() adds a
611 certificate to a basic response and OCSP_basic_sign() signs a basic
612 response with various flags. New helper functions ASN1_TIME_check()
613 (checks validity of ASN1_TIME structure) and ASN1_TIME_to_generalizedtime()
614 (converts ASN1_TIME to GeneralizedTime).
617 +) Various new functions. EVP_Digest() combines EVP_Digest{Init,Update,Final}()
618 in a single operation. X509_get0_pubkey_bitstr() extracts the public_key
619 structure from a certificate. X509_pubkey_digest() digests tha public_key
620 contents: this is used in various key identifiers.
623 *) Tolerate nonRepudiation as being valid for S/MIME signing and certSign
624 keyUsage if basicConstraints absent for a CA.
627 *) Make SMIME_write_PKCS7() write mail header values with a format that
628 is more generally accepted (no spaces before the semicolon), since
629 some programs can't parse those values properly otherwise. Also make
630 sure BIO's that break lines after each write do not create invalid
634 +) Make sk_sort() tolerate a NULL argument.
635 [Steve Henson reported by Massimiliano Pala <madwolf@comune.modena.it>]
637 +) New OCSP verify flag OCSP_TRUSTOTHER. When set the "other" certificates
638 passed by the function are trusted implicitly. If any of them signed the
639 reponse then it is assumed to be valid and is not verified.
642 -) Make the CRL encoding routines work with empty SEQUENCE OF. The
643 macros previously used would not encode an empty SEQUENCE OF
644 and break the signature.
646 [This change does not apply to 0.9.7.]
648 *) Zero the premaster secret after deriving the master secret in
652 +) In PKCS7_set_type() initialise content_type in PKCS7_ENC_CONTENT
653 to data. This was previously part of the PKCS7 ASN1 code. This
654 was causing problems with OpenSSL created PKCS#12 and PKCS#7 structures.
655 [Steve Henson, reported by Kenneth R. Robinette
656 <support@securenetterm.com>]
658 +) Add CRYPTO_push_info() and CRYPTO_pop_info() calls to new ASN1
659 routines: without these tracing memory leaks is very painful.
660 Fix leaks in PKCS12 and PKCS7 routines.
663 *) Add some EVP_add_digest_alias registrations (as found in
664 OpenSSL_add_all_digests()) to SSL_library_init()
665 aka OpenSSL_add_ssl_algorithms(). This provides improved
666 compatibility with peers using X.509 certificates
667 with unconventional AlgorithmIdentifier OIDs.
670 *) Fix for Irix with NO_ASM.
671 ["Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
673 *) ./config script fixes.
674 [Ulf Moeller, Richard Levitte]
676 +) Make X509_time_adj() cope with the new behaviour of ASN1_TIME_new().
677 Previously it initialised the 'type' argument to V_ASN1_UTCTIME which
678 effectively meant GeneralizedTime would never be used. Now it
679 is initialised to -1 but X509_time_adj() now has to check the value
680 and use ASN1_TIME_set() if the value is not V_ASN1_UTCTIME or
681 V_ASN1_GENERALIZEDTIME, without this it always uses GeneralizedTime.
682 [Steve Henson, reported by Kenneth R. Robinette
683 <support@securenetterm.com>]
685 +) Fixes to BN_to_ASN1_INTEGER when bn is zero. This would previously
686 result in a zero length in the ASN1_INTEGER structure which was
687 not consistent with the structure when d2i_ASN1_INTEGER() was used
688 and would cause ASN1_INTEGER_cmp() to fail. Enhance s2i_ASN1_INTEGER()
689 to cope with hex and negative integers. Fix bug in i2a_ASN1_INTEGER()
690 where it did not print out a minus for negative ASN1_INTEGER.
693 *) Fix 'openssl passwd -1'.
696 +) Add summary printout to ocsp utility. The various functions which
697 convert status values to strings have been renamed to:
698 OCSP_response_status_str(), OCSP_cert_status_str() and
699 OCSP_crl_reason_str() and are no longer static. New options
700 to verify nonce values and to disable verification. OCSP response
701 printout format cleaned up.
704 +) Add additional OCSP certificate checks. These are those specified
705 in RFC2560. This consists of two separate checks: the CA of the
706 certificate being checked must either be the OCSP signer certificate
707 or the issuer of the OCSP signer certificate. In the latter case the
708 OCSP signer certificate must contain the OCSP signing extended key
709 usage. This check is performed by attempting to match the OCSP
710 signer or the OCSP signer CA to the issuerNameHash and issuerKeyHash
711 in the OCSP_CERTID structures of the response.
714 +) Initial OCSP certificate verification added to OCSP_basic_verify()
715 and related routines. This uses the standard OpenSSL certificate
716 verify routines to perform initial checks (just CA validity) and
717 to obtain the certificate chain. Then additional checks will be
718 performed on the chain. Currently the root CA is checked to see
719 if it is explicitly trusted for OCSP signing. This is used to set
720 a root CA as a global signing root: that is any certificate that
721 chains to that CA is an acceptable OCSP signing certificate.
724 +) New '-extfile ...' option to 'openssl ca' for reading X.509v3
725 extensions from a separate configuration file.
726 As when reading extensions from the main configuration file,
727 the '-extensions ...' option may be used for specifying the
729 [Massimiliano Pala <madwolf@comune.modena.it>]
731 *) Change PKCS12_key_gen_asc() so it can cope with non null
732 terminated strings whose length is passed in the passlen
733 parameter, for example from PEM callbacks. This was done
734 by adding an extra length parameter to asc2uni().
735 [Steve Henson, reported by <oddissey@samsung.co.kr>]
737 +) New OCSP utility. Allows OCSP requests to be generated or
738 read. The request can be sent to a responder and the output
739 parsed, outputed or printed in text form. Not complete yet:
740 still needs to check the OCSP response validity.
743 +) New subcommands for 'openssl ca':
744 'openssl ca -status <serial>' prints the status of the cert with
745 the given serial number (according to the index file).
746 'openssl ca -updatedb' updates the expiry status of certificates
748 [Massimiliano Pala <madwolf@comune.modena.it>]
750 +) New '-newreq-nodes' command option to CA.pl. This is like
751 '-newreq', but calls 'openssl req' with the '-nodes' option
752 so that the resulting key is not encrypted.
753 [Damien Miller <djm@mindrot.org>]
755 +) New configuration for the GNU Hurd.
756 [Jonathan Bartlett <johnnyb@wolfram.com> via Richard Levitte]
758 +) Initial code to implement OCSP basic response verify. This
759 is currently incomplete. Currently just finds the signer's
760 certificate and verifies the signature on the response.
763 +) New SSLeay_version code SSLEAY_DIR to determine the compiled-in
764 value of OPENSSLDIR. This is available via the new '-d' option
765 to 'openssl version', and is also included in 'openssl version -a'.
768 *) Fix C code generated by 'openssl dsaparam -C': If a BN_bin2bn
769 call failed, free the DSA structure.
772 +) Allowing defining memory allocation callbacks that will be given
773 file name and line number information in additional arguments
774 (a const char* and an int). The basic functionality remains, as
775 well as the original possibility to just replace malloc(),
776 realloc() and free() by functions that do not know about these
777 additional arguments. To register and find out the current
778 settings for extended allocation functions, the following
779 functions are provided:
781 CRYPTO_set_mem_ex_functions
782 CRYPTO_set_locked_mem_ex_functions
783 CRYPTO_get_mem_ex_functions
784 CRYPTO_get_locked_mem_ex_functions
786 These work the same way as CRYPTO_set_mem_functions and friends.
787 CRYPTO_get_[locked_]mem_functions now writes 0 where such an
788 extended allocation function is enabled.
789 Similarly, CRYPTO_get_[locked_]mem_ex_functions writes 0 where
790 a conventional allocation function is enabled.
791 [Richard Levitte, Bodo Moeller]
793 *) Fix to uni2asc() to cope with zero length Unicode strings.
794 These are present in some PKCS#12 files.
797 +) Finish off removing the remaining LHASH function pointer casts.
798 There should no longer be any prototype-casting required when using
799 the LHASH abstraction, and any casts that remain are "bugs". See
800 the callback types and macros at the head of lhash.h for details
801 (and "OBJ_cleanup" in crypto/objects/obj_dat.c as an example).
804 +) Add automatic query of EGD sockets in RAND_poll() for the unix variant.
805 If /dev/[u]random devices are not available or do not return enough
806 entropy, EGD style sockets (served by EGD or PRNGD) will automatically
808 The locations /var/run/egd-pool, /dev/egd-pool, /etc/egd-pool, and
809 /etc/entropy will be queried once each in this sequence, quering stops
810 when enough entropy was collected without querying more sockets.
813 +) Change the Unix RAND_poll() variant to be able to poll several
814 random devices, as specified by DEVRANDOM, until a sufficient amount
815 of data has been collected. We spend at most 10 ms on each file
816 (select timeout) and read in non-blocking mode. DEVRANDOM now
817 defaults to the list "/dev/urandom", "/dev/random", "/dev/srandom"
818 (previously it was just the string "/dev/urandom"), so on typical
819 platforms the 10 ms delay will never occur.
820 Also separate out the Unix variant to its own file, rand_unix.c.
821 For VMS, there's a currently-empty rand_vms.c.
824 +) Move OCSP client related routines to ocsp_cl.c. These
825 provide utility functions which an application needing
826 to issue a request to an OCSP responder and analyse the
827 response will typically need: as opposed to those which an
828 OCSP responder itself would need which will be added later.
830 OCSP_request_sign() signs an OCSP request with an API similar
831 to PKCS7_sign(). OCSP_response_status() returns status of OCSP
832 response. OCSP_response_get1_basic() extracts basic response
833 from response. OCSP_resp_find_status(): finds and extracts status
834 information from an OCSP_CERTID structure (which will be created
835 when the request structure is built). These are built from lower
836 level functions which work on OCSP_SINGLERESP structures but
837 wont normally be used unless the application wishes to examine
838 extensions in the OCSP response for example.
840 Replace nonce routines with a pair of functions.
841 OCSP_request_add1_nonce() adds a nonce value and optionally
842 generates a random value. OCSP_check_nonce() checks the
843 validity of the nonce in an OCSP response.
846 +) Change function OCSP_request_add() to OCSP_request_add0_id().
847 This doesn't copy the supplied OCSP_CERTID and avoids the
848 need to free up the newly created id. Change return type
849 to OCSP_ONEREQ to return the internal OCSP_ONEREQ structure.
850 This can then be used to add extensions to the request.
851 Deleted OCSP_request_new(), since most of its functionality
852 is now in OCSP_REQUEST_new() (and the case insensitive name
853 clash) apart from the ability to set the request name which
854 will be added elsewhere.
857 +) Update OCSP API. Remove obsolete extensions argument from
858 various functions. Extensions are now handled using the new
859 OCSP extension code. New simple OCSP HTTP function which
860 can be used to send requests and parse the response.
863 +) Fix the PKCS#7 (S/MIME) code to work with new ASN1. Two new
864 ASN1_ITEM structures help with sign and verify. PKCS7_ATTR_SIGN
865 uses the special reorder version of SET OF to sort the attributes
866 and reorder them to match the encoded order. This resolves a long
867 standing problem: a verify on a PKCS7 structure just after signing
868 it used to fail because the attribute order did not match the
869 encoded order. PKCS7_ATTR_VERIFY does not reorder the attributes:
870 it uses the received order. This is necessary to tolerate some broken
871 software that does not order SET OF. This is handled by encoding
872 as a SEQUENCE OF but using implicit tagging (with UNIVERSAL class)
873 to produce the required SET OF.
876 +) Have mk1mf.pl generate the macros OPENSSL_BUILD_SHLIBCRYPTO and
877 OPENSSL_BUILD_SHLIBSSL and use them appropriately in the header
878 files to get correct declarations of the ASN.1 item variables.
881 +) Rewrite of PKCS#12 code to use new ASN1 functionality. Replace many
882 PKCS#12 macros with real functions. Fix two unrelated ASN1 bugs:
883 asn1_check_tlen() would sometimes attempt to use 'ctx' when it was
884 NULL and ASN1_TYPE was not dereferenced properly in asn1_ex_c2i().
885 New ASN1 macro: DECLARE_ASN1_ITEM() which just declares the relevant
886 ASN1_ITEM and no wrapper functions.
889 +) New functions or ASN1_item_d2i_fp() and ASN1_item_d2i_bio(). These
890 replace the old function pointer based I/O routines. Change most of
891 the *_d2i_bio() and *_d2i_fp() functions to use these.
894 +) Enhance mkdef.pl to be more accepting about spacing in C preprocessor
895 lines, recognice more "algorithms" that can be deselected, and make
896 it complain about algorithm deselection that isn't recognised.
899 +) New ASN1 functions to handle dup, sign, verify, digest, pack and
900 unpack operations in terms of ASN1_ITEM. Modify existing wrappers
901 to use new functions. Add NO_ASN1_OLD which can be set to remove
902 some old style ASN1 functions: this can be used to determine if old
903 code will still work when these eventually go away.
906 +) New extension functions for OCSP structures, these follow the
907 same conventions as certificates and CRLs.
910 +) New function X509V3_add1_i2d(). This automatically encodes and
911 adds an extension. Its behaviour can be customised with various
912 flags to append, replace or delete. Various wrappers added for
913 certifcates and CRLs.
916 +) Fix to avoid calling the underlying ASN1 print routine when
917 an extension cannot be parsed. Correct a typo in the
918 OCSP_SERVICELOC extension. Tidy up print OCSP format.
921 *) Increase s2->wbuf allocation by one byte in ssl2_new (ssl/s2_lib.c).
922 Otherwise do_ssl_write (ssl/s2_pkt.c) will write beyond buffer limits
923 when writing a 32767 byte record.
924 [Bodo Moeller; problem reported by Eric Day <eday@concentric.net>]
926 *) In RSA_eay_public_{en,ed}crypt and RSA_eay_mod_exp (rsa_eay.c),
927 obtain lock CRYPTO_LOCK_RSA before setting rsa->_method_mod_{n,p,q}.
929 (RSA objects have a reference count access to which is protected
930 by CRYPTO_LOCK_RSA [see rsa_lib.c, s3_srvr.c, ssl_cert.c, ssl_rsa.c],
931 so they are meant to be shared between threads.)
932 [Bodo Moeller, Geoff Thorpe; original patch submitted by
933 "Reddie, Steven" <Steven.Reddie@ca.com>]
935 +) Make mkdef.pl parse some of the ASN1 macros and add apropriate
936 entries for variables.
939 *) Fix a deadlock in CRYPTO_mem_leaks().
942 +) Add functionality to apps/openssl.c for detecting locking
943 problems: As the program is single-threaded, all we have
944 to do is register a locking callback using an array for
945 storing which locks are currently held by the program.
948 +) Use a lock around the call to CRYPTO_get_ex_new_index() in
949 SSL_get_ex_data_X509_STORE_idx(), which is used in
950 ssl_verify_cert_chain() and thus can be called at any time
951 during TLS/SSL handshakes so that thread-safety is essential.
952 Unfortunately, the ex_data design is not at all suited
953 for multi-threaded use, so it probably should be abolished.
956 +) Added Broadcom "ubsec" ENGINE to OpenSSL.
957 [Broadcom, tweaked and integrated by Geoff Thorpe]
959 +) Move common extension printing code to new function
960 X509V3_print_extensions(). Reorganise OCSP print routines and
961 implement some needed OCSP ASN1 functions. Add OCSP extensions.
964 +) New function X509_signature_print() to remove duplication in some
968 +) Add a special meaning when SET OF and SEQUENCE OF flags are both
969 set (this was treated exactly the same as SET OF previously). This
970 is used to reorder the STACK representing the structure to match the
971 encoding. This will be used to get round a problem where a PKCS7
972 structure which was signed could not be verified because the STACK
973 order did not reflect the encoded order.
976 +) Reimplement the OCSP ASN1 module using the new code.
979 +) Update the X509V3 code to permit the use of an ASN1_ITEM structure
980 for its ASN1 operations. The old style function pointers still exist
981 for now but they will eventually go away.
984 +) Merge in replacement ASN1 code from the ASN1 branch. This almost
985 completely replaces the old ASN1 functionality with a table driven
986 encoder and decoder which interprets an ASN1_ITEM structure describing
987 the ASN1 module. Compatibility with the existing ASN1 API (i2d,d2i) is
988 largely maintained. Almost all of the old asn1_mac.h macro based ASN1
989 has also been converted to the new form.
992 +) Change BN_mod_exp_recp so that negative moduli are tolerated
993 (the sign is ignored). Similarly, ignore the sign in BN_MONT_CTX_set
994 so that BN_mod_exp_mont and BN_mod_exp_mont_word work
998 +) Fix BN_uadd and BN_usub: Always return non-negative results instead
999 of not touching the result's sign bit.
1002 +) BN_div bugfix: If the result is 0, the sign (res->neg) must not be
1006 +) Changed the LHASH code to use prototypes for callbacks, and created
1007 macros to declare and implement thin (optionally static) functions
1008 that provide type-safety and avoid function pointer casting for the
1009 type-specific callbacks.
1012 *) Use better test patterns in bntest.
1015 +) Added Kerberos Cipher Suites to be used with TLS, as written in
1017 [Veers Staats <staatsvr@asc.hpc.mil>,
1018 Jeffrey Altman <jaltman@columbia.edu>, via Richard Levitte]
1020 *) rand_win.c fix for Borland C.
1023 *) BN_rshift bugfix for n == 0.
1026 +) Reformat the FAQ so the different questions and answers can be divided
1027 in sections depending on the subject.
1030 +) Have the zlib compression code load ZLIB.DLL dynamically under
1034 +) New function BN_mod_sqrt for computing square roots modulo a prime
1035 (using the probabilistic Tonelli-Shanks algorithm unless
1036 p == 3 (mod 4) or p == 5 (mod 8), which are cases that can
1037 be handled deterministically).
1038 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
1040 *) Add a 'bctest' script that checks for some known 'bc' bugs
1041 so that 'make test' does not abort just because 'bc' is broken.
1044 *) Store verify_result within SSL_SESSION also for client side to
1045 avoid potential security hole. (Re-used sessions on the client side
1046 always resulted in verify_result==X509_V_OK, not using the original
1047 result of the server certificate verification.)
1050 +) Make BN_mod_inverse faster by explicitly handling small quotients
1051 in the Euclid loop. (Speed gain about 20% for small moduli [256 or
1052 512 bits], about 30% for larger ones [1024 or 2048 bits].)
1055 *) Fix ssl3_pending: If the record in s->s3->rrec is not of type
1056 SSL3_RT_APPLICATION_DATA, return 0.
1057 Similarly, change ssl2_pending to return 0 if SSL_in_init(s) is true.
1061 Both ssl2_peek and ssl3_peek, which were totally broken in earlier
1062 releases, have been re-implemented by renaming the previous
1063 implementations of ssl2_read and ssl3_read to ssl2_read_internal
1064 and ssl3_read_internal, respectively, and adding 'peek' parameters
1065 to them. The new ssl[23]_{read,peek} functions are calls to
1066 ssl[23]_read_internal with the 'peek' flag set appropriately.
1067 A 'peek' parameter has also been added to ssl3_read_bytes, which
1068 does the actual work for ssl3_read_internal.
1071 +) New function BN_kronecker.
1074 +) Fix BN_gcd so that it works on negative inputs; the result is
1075 positive unless both parameters are zero.
1076 Previously something reasonably close to an infinite loop was
1077 possible because numbers could be growing instead of shrinking
1078 in the implementation of Euclid's algorithm.
1081 +) Fix BN_is_word() and BN_is_one() macros to take into account the
1082 sign of the number in question.
1084 Fix BN_is_word(a,w) to work correctly for w == 0.
1086 The old BN_is_word(a,w) macro is now called BN_abs_is_word(a,w)
1087 because its test if the absolute value of 'a' equals 'w'.
1088 Note that BN_abs_is_word does *not* handle w == 0 reliably;
1089 it exists mostly for use in the implementations of BN_is_zero(),
1090 BN_is_one(), and BN_is_word().
1093 *) Initialise "ex_data" member of RSA/DSA/DH structures prior to calling
1094 the method-specific "init()" handler. Also clean up ex_data after
1095 calling the method-specific "finish()" handler. Previously, this was
1096 happening the other way round.
1099 +) New function BN_swap.
1102 +) Use BN_nnmod instead of BN_mod in crypto/bn/bn_exp.c so that
1103 the exponentiation functions are more likely to produce reasonable
1104 results on negative inputs.
1107 +) Change BN_mod_mul so that the result is always non-negative.
1108 Previously, it could be negative if one of the factors was negative;
1109 I don't think anyone really wanted that behaviour.
1112 +) Move BN_mod_... functions into new file crypto/bn/bn_mod.c
1113 (except for exponentiation, which stays in crypto/bn/bn_exp.c,
1114 and BN_mod_mul_reciprocal, which stays in crypto/bn/bn_recp.c)
1115 and add new functions:
1124 BN_mod_lshift1_quick
1128 These functions always generate non-negative results.
1130 BN_nnmod otherwise is like BN_mod (if BN_mod computes a remainder r
1131 such that |m| < r < 0, BN_nnmod will output rem + |m| instead).
1133 BN_mod_XXX_quick(r, a, [b,] m) generates the same result as
1134 BN_mod_XXX(r, a, [b,] m, ctx), but requires that a [and b]
1135 be reduced modulo m.
1136 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
1138 +) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
1139 was actually never needed) and in BN_mul(). The removal in BN_mul()
1140 required a small change in bn_mul_part_recursive() and the addition
1141 of the functions bn_cmp_part_words(), bn_sub_part_words() and
1142 bn_add_part_words(), which do the same thing as bn_cmp_words(),
1143 bn_sub_words() and bn_add_words() except they take arrays with
1147 +) In 'openssl passwd', verify passwords read from the terminal
1148 unless the '-salt' option is used (which usually means that
1149 verification would just waste user's time since the resulting
1150 hash is going to be compared with some given password hash)
1151 or the new '-noverify' option is used.
1153 This is an incompatible change, but it does not affect
1154 non-interactive use of 'openssl passwd' (passwords on the command
1155 line, '-stdin' option, '-in ...' option) and thus should not
1159 +) Remove all references to RSAref, since there's no more need for it.
1162 *) Increase BN_CTX_NUM (the number of BIGNUMs in a BN_CTX) to 16.
1163 The previous value, 12, was not always sufficient for BN_mod_exp().
1166 +) Make DSO load along a path given through an environment variable
1167 (SHLIB_PATH) with shl_load().
1170 +) Constify the ENGINE code as a result of BIGNUM constification.
1171 Also constify the RSA code and most things related to it. In a
1172 few places, most notable in the depth of the ASN.1 code, ugly
1173 casts back to non-const were required (to be solved at a later
1177 +) Make it so the openssl application has all engines loaded by default.
1180 +) Constify the BIGNUM routines a little more.
1183 *) Make sure that shared libraries get the internal name engine with
1184 the full version number and not just 0. This should mark the
1185 shared libraries as not backward compatible. Of course, this should
1186 be changed again when we can guarantee backward binary compatibility.
1189 +) Add the following functions:
1191 ENGINE_load_cswift()
1193 ENGINE_load_atalla()
1195 ENGINE_load_builtin_engines()
1197 That way, an application can itself choose if external engines that
1198 are built-in in OpenSSL shall ever be used or not. The benefit is
1199 that applications won't have to be linked with libdl or other dso
1200 libraries unless it's really needed.
1202 Changed 'openssl engine' to load all engines on demand.
1203 Changed the engine header files to avoid the duplication of some
1204 declarations (they differed!).
1207 +) 'openssl engine' can now list capabilities.
1210 +) Better error reporting in 'openssl engine'.
1213 +) Never call load_dh_param(NULL) in s_server.
1216 +) Add engine application. It can currently list engines by name and
1217 identity, and test if they are actually available.
1220 +) Add support for shared libraries under Irix.
1221 [Albert Chin-A-Young <china@thewrittenword.com>]
1223 +) Improve RPM specification file by forcing symbolic linking and making
1224 sure the installed documentation is also owned by root.root.
1225 [Damien Miller <djm@mindrot.org>]
1227 +) Add configuration option to build on Linux on both big-endian and
1229 [Ralf Baechle <ralf@uni-koblenz.de>]
1231 +) Give the OpenSSL applications more possibilities to make use of
1232 keys (public as well as private) handled by engines.
1235 +) Add OCSP code that comes from CertCo.
1238 +) Add VMS support for the Rijndael code.
1241 +) Added untested support for Nuron crypto accelerator.
1244 +) Add support for external cryptographic devices. This code was
1245 previously distributed separately as the "engine" branch.
1246 [Geoff Thorpe, Richard Levitte]
1248 +) Rework the filename-translation in the DSO code. It is now possible to
1249 have far greater control over how a "name" is turned into a filename
1250 depending on the operating environment and any oddities about the
1251 different shared library filenames on each system.
1254 +) Support threads on FreeBSD-elf in Configure.
1257 +) Add the possibility to create shared libraries on HP-UX
1260 +) Fix for SHA1 assembly problem with MASM: it produces
1261 warnings about corrupt line number information when assembling
1262 with debugging information. This is caused by the overlapping
1264 [Bernd Matthes <mainbug@celocom.de>, Steve Henson]
1267 NCONF_get_number() has no error checking at all. As a replacement,
1268 NCONF_get_number_e() is defined (_e for "error checking") and is
1269 promoted strongly. The old NCONF_get_number is kept around for
1270 binary backward compatibility.
1271 Make it possible for methods to load from something other than a BIO,
1272 by providing a function pointer that is given a name instead of a BIO.
1273 For example, this could be used to load configuration data from an
1277 *) Fix typo in get_cert_by_subject() in by_dir.c
1278 [Jean-Marc Desperrier <jean-marc.desperrier@certplus.com>]
1280 *) Rework the system to generate shared libraries:
1282 - Make note of the expected extension for the shared libraries and
1283 if there is a need for symbolic links from for example libcrypto.so.0
1284 to libcrypto.so.0.9.7. There is extended info in Configure for
1287 - Make as few rebuilds of the shared libraries as possible.
1289 - Still avoid linking the OpenSSL programs with the shared libraries.
1291 - When installing, install the shared libraries separately from the
1295 +) Fix for non blocking accept BIOs. Added new I/O special reason
1296 BIO_RR_ACCEPT to cover this case. Previously use of accept BIOs
1297 with non blocking I/O was not possible because no retry code was
1298 implemented. Also added new SSL code SSL_WANT_ACCEPT to cover
1302 +) Added the beginnings of Rijndael support.
1305 +) Fix for bug in DirectoryString mask setting. Add support for
1306 X509_NAME_print_ex() in 'req' and X509_print_ex() function
1307 to allow certificate printing to more controllable, additional
1308 'certopt' option to 'x509' to allow new printing options to be
1312 +) Clean old EAY MD5 hack from e_os.h.
1315 *) Fix SSL_CTX_set_read_ahead macro to actually use its argument.
1317 Copy SSL_CTX's read_ahead flag to SSL object directly in SSL_new
1318 and not in SSL_clear because the latter is also used by the
1319 accept/connect functions; previously, the settings made by
1320 SSL_set_read_ahead would be lost during the handshake.
1321 [Bodo Moeller; problems reported by Anders Gertz <gertz@epact.se>]
1323 *) Correct util/mkdef.pl to be selective about disabled algorithms.
1324 Previously, it would create entries for disableed algorithms no
1328 *) Added several new manual pages for SSL_* function.
1331 Changes between 0.9.5a and 0.9.6 [24 Sep 2000]
1333 *) In ssl23_get_client_hello, generate an error message when faced
1334 with an initial SSL 3.0/TLS record that is too small to contain the
1335 first two bytes of the ClientHello message, i.e. client_version.
1336 (Note that this is a pathologic case that probably has never happened
1337 in real life.) The previous approach was to use the version number
1338 from the record header as a substitute; but our protocol choice
1339 should not depend on that one because it is not authenticated
1340 by the Finished messages.
1343 *) More robust randomness gathering functions for Windows.
1344 [Jeffrey Altman <jaltman@columbia.edu>]
1346 *) For compatibility reasons if the flag X509_V_FLAG_ISSUER_CHECK is
1347 not set then we don't setup the error code for issuer check errors
1348 to avoid possibly overwriting other errors which the callback does
1349 handle. If an application does set the flag then we assume it knows
1350 what it is doing and can handle the new informational codes
1354 *) Fix for a nasty bug in ASN1_TYPE handling. ASN1_TYPE is used for
1355 a general "ANY" type, as such it should be able to decode anything
1356 including tagged types. However it didn't check the class so it would
1357 wrongly interpret tagged types in the same way as their universal
1358 counterpart and unknown types were just rejected. Changed so that the
1359 tagged and unknown types are handled in the same way as a SEQUENCE:
1360 that is the encoding is stored intact. There is also a new type
1361 "V_ASN1_OTHER" which is used when the class is not universal, in this
1362 case we have no idea what the actual type is so we just lump them all
1366 *) On VMS, stdout may very well lead to a file that is written to
1367 in a record-oriented fashion. That means that every write() will
1368 write a separate record, which will be read separately by the
1369 programs trying to read from it. This can be very confusing.
1371 The solution is to put a BIO filter in the way that will buffer
1372 text until a linefeed is reached, and then write everything a
1373 line at a time, so every record written will be an actual line,
1374 not chunks of lines and not (usually doesn't happen, but I've
1375 seen it once) several lines in one record. BIO_f_linebuffer() is
1378 Currently, it's a VMS-only method, because that's where it has
1379 been tested well enough.
1382 *) Remove 'optimized' squaring variant in BN_mod_mul_montgomery,
1383 it can return incorrect results.
1384 (Note: The buggy variant was not enabled in OpenSSL 0.9.5a,
1385 but it was in 0.9.6-beta[12].)
1388 *) Disable the check for content being present when verifying detached
1389 signatures in pk7_smime.c. Some versions of Netscape (wrongly)
1390 include zero length content when signing messages.
1393 *) New BIO_shutdown_wr macro, which invokes the BIO_C_SHUTDOWN_WR
1394 BIO_ctrl (for BIO pairs).
1397 *) Add DSO method for VMS.
1400 *) Bug fix: Montgomery multiplication could produce results with the
1404 *) Add RPM specification openssl.spec and modify it to build three
1405 packages. The default package contains applications, application
1406 documentation and run-time libraries. The devel package contains
1407 include files, static libraries and function documentation. The
1408 doc package contains the contents of the doc directory. The original
1409 openssl.spec was provided by Damien Miller <djm@mindrot.org>.
1412 *) Add a large number of documentation files for many SSL routines.
1413 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
1415 *) Add a configuration entry for Sony News 4.
1416 [NAKAJI Hiroyuki <nakaji@tutrp.tut.ac.jp>]
1418 *) Don't set the two most significant bits to one when generating a
1419 random number < q in the DSA library.
1422 *) New SSL API mode 'SSL_MODE_AUTO_RETRY'. This disables the default
1423 behaviour that SSL_read may result in SSL_ERROR_WANT_READ (even if
1424 the underlying transport is blocking) if a handshake took place.
1425 (The default behaviour is needed by applications such as s_client
1426 and s_server that use select() to determine when to use SSL_read;
1427 but for applications that know in advance when to expect data, it
1428 just makes things more complicated.)
1431 *) Add RAND_egd_bytes(), which gives control over the number of bytes read
1435 *) Add a few more EBCDIC conditionals that make `req' and `x509'
1436 work better on such systems.
1437 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
1439 *) Add two demo programs for PKCS12_parse() and PKCS12_create().
1440 Update PKCS12_parse() so it copies the friendlyName and the
1441 keyid to the certificates aux info.
1444 *) Fix bug in PKCS7_verify() which caused an infinite loop
1445 if there was more than one signature.
1446 [Sven Uszpelkat <su@celocom.de>]
1448 *) Major change in util/mkdef.pl to include extra information
1449 about each symbol, as well as presentig variables as well
1450 as functions. This change means that there's n more need
1451 to rebuild the .num files when some algorithms are excluded.
1454 *) Allow the verify time to be set by an application,
1455 rather than always using the current time.
1458 *) Phase 2 verify code reorganisation. The certificate
1459 verify code now looks up an issuer certificate by a
1460 number of criteria: subject name, authority key id
1461 and key usage. It also verifies self signed certificates
1462 by the same criteria. The main comparison function is
1463 X509_check_issued() which performs these checks.
1465 Lot of changes were necessary in order to support this
1466 without completely rewriting the lookup code.
1468 Authority and subject key identifier are now cached.
1470 The LHASH 'certs' is X509_STORE has now been replaced
1471 by a STACK_OF(X509_OBJECT). This is mainly because an
1472 LHASH can't store or retrieve multiple objects with
1473 the same hash value.
1475 As a result various functions (which were all internal
1476 use only) have changed to handle the new X509_STORE
1477 structure. This will break anything that messed round
1478 with X509_STORE internally.
1480 The functions X509_STORE_add_cert() now checks for an
1481 exact match, rather than just subject name.
1483 The X509_STORE API doesn't directly support the retrieval
1484 of multiple certificates matching a given criteria, however
1485 this can be worked round by performing a lookup first
1486 (which will fill the cache with candidate certificates)
1487 and then examining the cache for matches. This is probably
1488 the best we can do without throwing out X509_LOOKUP
1489 entirely (maybe later...).
1491 The X509_VERIFY_CTX structure has been enhanced considerably.
1493 All certificate lookup operations now go via a get_issuer()
1494 callback. Although this currently uses an X509_STORE it
1495 can be replaced by custom lookups. This is a simple way
1496 to bypass the X509_STORE hackery necessary to make this
1497 work and makes it possible to use more efficient techniques
1498 in future. A very simple version which uses a simple
1499 STACK for its trusted certificate store is also provided
1500 using X509_STORE_CTX_trusted_stack().
1502 The verify_cb() and verify() callbacks now have equivalents
1503 in the X509_STORE_CTX structure.
1505 X509_STORE_CTX also has a 'flags' field which can be used
1506 to customise the verify behaviour.
1509 *) Add new PKCS#7 signing option PKCS7_NOSMIMECAP which
1510 excludes S/MIME capabilities.
1513 *) When a certificate request is read in keep a copy of the
1514 original encoding of the signed data and use it when outputing
1515 again. Signatures then use the original encoding rather than
1516 a decoded, encoded version which may cause problems if the
1517 request is improperly encoded.
1520 *) For consistency with other BIO_puts implementations, call
1521 buffer_write(b, ...) directly in buffer_puts instead of calling
1524 In BIO_puts, increment b->num_write as in BIO_write.
1525 [Peter.Sylvester@EdelWeb.fr]
1527 *) Fix BN_mul_word for the case where the word is 0. (We have to use
1528 BN_zero, we may not return a BIGNUM with an array consisting of
1532 *) Avoid calling abort() from within the library when problems are
1533 detected, except if preprocessor symbols have been defined
1534 (such as REF_CHECK, BN_DEBUG etc.).
1537 *) New openssl application 'rsautl'. This utility can be
1538 used for low level RSA operations. DER public key
1539 BIO/fp routines also added.
1542 *) New Configure entry and patches for compiling on QNX 4.
1543 [Andreas Schneider <andreas@ds3.etech.fh-hamburg.de>]
1545 *) A demo state-machine implementation was sponsored by
1546 Nuron (http://www.nuron.com/) and is now available in
1547 demos/state_machine.
1550 *) New options added to the 'dgst' utility for signature
1551 generation and verification.
1554 *) Unrecognized PKCS#7 content types are now handled via a
1555 catch all ASN1_TYPE structure. This allows unsupported
1556 types to be stored as a "blob" and an application can
1557 encode and decode it manually.
1560 *) Fix various signed/unsigned issues to make a_strex.c
1562 [Oscar Jacobsson <oscar.jacobsson@celocom.com>]
1564 *) ASN1 fixes. i2d_ASN1_OBJECT was not returning the correct
1565 length if passed a buffer. ASN1_INTEGER_to_BN failed
1566 if passed a NULL BN and its argument was negative.
1567 [Steve Henson, pointed out by Sven Heiberg <sven@tartu.cyber.ee>]
1569 *) Modification to PKCS#7 encoding routines to output definite
1570 length encoding. Since currently the whole structures are in
1571 memory there's not real point in using indefinite length
1572 constructed encoding. However if OpenSSL is compiled with
1573 the flag PKCS7_INDEFINITE_ENCODING the old form is used.
1576 *) Added BIO_vprintf() and BIO_vsnprintf().
1579 *) Added more prefixes to parse for in the the strings written
1580 through a logging bio, to cover all the levels that are available
1581 through syslog. The prefixes are now:
1583 PANIC, EMERG, EMR => LOG_EMERG
1584 ALERT, ALR => LOG_ALERT
1585 CRIT, CRI => LOG_CRIT
1586 ERROR, ERR => LOG_ERR
1587 WARNING, WARN, WAR => LOG_WARNING
1588 NOTICE, NOTE, NOT => LOG_NOTICE
1589 INFO, INF => LOG_INFO
1590 DEBUG, DBG => LOG_DEBUG
1592 and as before, if none of those prefixes are present at the
1593 beginning of the string, LOG_ERR is chosen.
1595 On Win32, the LOG_* levels are mapped according to this:
1597 LOG_EMERG, LOG_ALERT, LOG_CRIT, LOG_ERR => EVENTLOG_ERROR_TYPE
1598 LOG_WARNING => EVENTLOG_WARNING_TYPE
1599 LOG_NOTICE, LOG_INFO, LOG_DEBUG => EVENTLOG_INFORMATION_TYPE
1603 *) Made it possible to reconfigure with just the configuration
1604 argument "reconf" or "reconfigure". The command line arguments
1605 are stored in Makefile.ssl in the variable CONFIGURE_ARGS,
1606 and are retrieved from there when reconfiguring.
1610 [Assar Westerlund <assar@sics.se>, Richard Levitte]
1612 *) Add the arguments -CAfile and -CApath to the pkcs12 utility.
1615 *) The obj_dat.pl script was messing up the sorting of object
1616 names. The reason was that it compared the quoted version
1617 of strings as a result "OCSP" > "OCSP Signing" because
1618 " > SPACE. Changed script to store unquoted versions of
1619 names and add quotes on output. It was also omitting some
1620 names from the lookup table if they were given a default
1621 value (that is if SN is missing it is given the same
1622 value as LN and vice versa), these are now added on the
1623 grounds that if an object has a name we should be able to
1624 look it up. Finally added warning output when duplicate
1625 short or long names are found.
1628 *) Changes needed for Tandem NSK.
1629 [Scott Uroff <scott@xypro.com>]
1631 *) Fix SSL 2.0 rollback checking: Due to an off-by-one error in
1632 RSA_padding_check_SSLv23(), special padding was never detected
1633 and thus the SSL 3.0/TLS 1.0 countermeasure against protocol
1634 version rollback attacks was not effective.
1636 In s23_clnt.c, don't use special rollback-attack detection padding
1637 (RSA_SSLV23_PADDING) if SSL 2.0 is the only protocol enabled in the
1638 client; similarly, in s23_srvr.c, don't do the rollback check if
1639 SSL 2.0 is the only protocol enabled in the server.
1642 *) Make it possible to get hexdumps of unprintable data with 'openssl
1643 asn1parse'. By implication, the functions ASN1_parse_dump() and
1644 BIO_dump_indent() are added.
1647 *) New functions ASN1_STRING_print_ex() and X509_NAME_print_ex()
1648 these print out strings and name structures based on various
1649 flags including RFC2253 support and proper handling of
1650 multibyte characters. Added options to the 'x509' utility
1651 to allow the various flags to be set.
1654 *) Various fixes to use ASN1_TIME instead of ASN1_UTCTIME.
1655 Also change the functions X509_cmp_current_time() and
1656 X509_gmtime_adj() work with an ASN1_TIME structure,
1657 this will enable certificates using GeneralizedTime in validity
1658 dates to be checked.
1661 *) Make the NEG_PUBKEY_BUG code (which tolerates invalid
1662 negative public key encodings) on by default,
1663 NO_NEG_PUBKEY_BUG can be set to disable it.
1666 *) New function c2i_ASN1_OBJECT() which acts on ASN1_OBJECT
1667 content octets. An i2c_ASN1_OBJECT is unnecessary because
1668 the encoding can be trivially obtained from the structure.
1671 *) crypto/err.c locking bugfix: Use write locks (CRYPTO_w_[un]lock),
1672 not read locks (CRYPTO_r_[un]lock).
1675 *) A first attempt at creating official support for shared
1676 libraries through configuration. I've kept it so the
1677 default is static libraries only, and the OpenSSL programs
1678 are always statically linked for now, but there are
1679 preparations for dynamic linking in place.
1680 This has been tested on Linux and True64.
1683 *) Randomness polling function for Win9x, as described in:
1684 Peter Gutmann, Software Generation of Practically Strong
1688 *) Fix so PRNG is seeded in req if using an already existing
1692 *) New options to smime application. -inform and -outform
1693 allow alternative formats for the S/MIME message including
1694 PEM and DER. The -content option allows the content to be
1695 specified separately. This should allow things like Netscape
1696 form signing output easier to verify.
1699 *) Fix the ASN1 encoding of tags using the 'long form'.
1702 *) New ASN1 functions, i2c_* and c2i_* for INTEGER and BIT
1703 STRING types. These convert content octets to and from the
1704 underlying type. The actual tag and length octets are
1705 already assumed to have been read in and checked. These
1706 are needed because all other string types have virtually
1707 identical handling apart from the tag. By having versions
1708 of the ASN1 functions that just operate on content octets
1709 IMPLICIT tagging can be handled properly. It also allows
1710 the ASN1_ENUMERATED code to be cut down because ASN1_ENUMERATED
1711 and ASN1_INTEGER are identical apart from the tag.
1714 *) Change the handling of OID objects as follows:
1716 - New object identifiers are inserted in objects.txt, following
1717 the syntax given in objects.README.
1718 - objects.pl is used to process obj_mac.num and create a new
1720 - obj_dat.pl is used to create a new obj_dat.h, using the data in
1723 This is currently kind of a hack, and the perl code in objects.pl
1724 isn't very elegant, but it works as I intended. The simplest way
1725 to check that it worked correctly is to look in obj_dat.h and
1726 check the array nid_objs and make sure the objects haven't moved
1727 around (this is important!). Additions are OK, as well as
1728 consistent name changes.
1731 *) Add BSD-style MD5-based passwords to 'openssl passwd' (option '-1').
1734 *) Addition of the command line parameter '-rand file' to 'openssl req'.
1735 The given file adds to whatever has already been seeded into the
1736 random pool through the RANDFILE configuration file option or
1737 environment variable, or the default random state file.
1740 *) mkstack.pl now sorts each macro group into lexical order.
1741 Previously the output order depended on the order the files
1742 appeared in the directory, resulting in needless rewriting
1746 *) Patches to make OpenSSL compile under Win32 again. Mostly
1747 work arounds for the VC++ problem that it treats func() as
1748 func(void). Also stripped out the parts of mkdef.pl that
1749 added extra typesafe functions: these no longer exist.
1752 *) Reorganisation of the stack code. The macros are now all
1753 collected in safestack.h . Each macro is defined in terms of
1754 a "stack macro" of the form SKM_<name>(type, a, b). The
1755 DEBUG_SAFESTACK is now handled in terms of function casts,
1756 this has the advantage of retaining type safety without the
1757 use of additional functions. If DEBUG_SAFESTACK is not defined
1758 then the non typesafe macros are used instead. Also modified the
1759 mkstack.pl script to handle the new form. Needs testing to see
1760 if which (if any) compilers it chokes and maybe make DEBUG_SAFESTACK
1761 the default if no major problems. Similar behaviour for ASN1_SET_OF
1762 and PKCS12_STACK_OF.
1765 *) When some versions of IIS use the 'NET' form of private key the
1766 key derivation algorithm is different. Normally MD5(password) is
1767 used as a 128 bit RC4 key. In the modified case
1768 MD5(MD5(password) + "SGCKEYSALT") is used insted. Added some
1769 new functions i2d_RSA_NET(), d2i_RSA_NET() etc which are the same
1770 as the old Netscape_RSA functions except they have an additional
1771 'sgckey' parameter which uses the modified algorithm. Also added
1772 an -sgckey command line option to the rsa utility. Thanks to
1773 Adrian Peck <bertie@ncipher.com> for posting details of the modified
1774 algorithm to openssl-dev.
1777 *) The evp_local.h macros were using 'c.##kname' which resulted in
1778 invalid expansion on some systems (SCO 5.0.5 for example).
1779 Corrected to 'c.kname'.
1780 [Phillip Porch <root@theporch.com>]
1782 *) New X509_get1_email() and X509_REQ_get1_email() functions that return
1783 a STACK of email addresses from a certificate or request, these look
1784 in the subject name and the subject alternative name extensions and
1785 omit any duplicate addresses.
1788 *) Re-implement BN_mod_exp2_mont using independent (and larger) windows.
1789 This makes DSA verification about 2 % faster.
1792 *) Increase maximum window size in BN_mod_exp_... to 6 bits instead of 5
1793 (meaning that now 2^5 values will be precomputed, which is only 4 KB
1794 plus overhead for 1024 bit moduli).
1795 This makes exponentiations about 0.5 % faster for 1024 bit
1796 exponents (as measured by "openssl speed rsa2048").
1799 *) Rename memory handling macros to avoid conflicts with other
1801 Malloc => OPENSSL_malloc
1802 Malloc_locked => OPENSSL_malloc_locked
1803 Realloc => OPENSSL_realloc
1804 Free => OPENSSL_free
1807 *) New function BN_mod_exp_mont_word for small bases (roughly 15%
1808 faster than BN_mod_exp_mont, i.e. 7% for a full DH exchange).
1811 *) CygWin32 support.
1812 [John Jarvie <jjarvie@newsguy.com>]
1814 *) The type-safe stack code has been rejigged. It is now only compiled
1815 in when OpenSSL is configured with the DEBUG_SAFESTACK option and
1816 by default all type-specific stack functions are "#define"d back to
1817 standard stack functions. This results in more streamlined output
1818 but retains the type-safety checking possibilities of the original
1822 *) The STACK code has been cleaned up, and certain type declarations
1823 that didn't make a lot of sense have been brought in line. This has
1824 also involved a cleanup of sorts in safestack.h to more correctly
1825 map type-safe stack functions onto their plain stack counterparts.
1826 This work has also resulted in a variety of "const"ifications of
1827 lots of the code, especially "_cmp" operations which should normally
1828 be prototyped with "const" parameters anyway.
1831 *) When generating bytes for the first time in md_rand.c, 'stir the pool'
1832 by seeding with STATE_SIZE dummy bytes (with zero entropy count).
1833 (The PRNG state consists of two parts, the large pool 'state' and 'md',
1834 where all of 'md' is used each time the PRNG is used, but 'state'
1835 is used only indexed by a cyclic counter. As entropy may not be
1836 well distributed from the beginning, 'md' is important as a
1837 chaining variable. However, the output function chains only half
1838 of 'md', i.e. 80 bits. ssleay_rand_add, on the other hand, chains
1839 all of 'md', and seeding with STATE_SIZE dummy bytes will result
1840 in all of 'state' being rewritten, with the new values depending
1841 on virtually all of 'md'. This overcomes the 80 bit limitation.)
1844 *) In ssl/s2_clnt.c and ssl/s3_clnt.c, call ERR_clear_error() when
1845 the handshake is continued after ssl_verify_cert_chain();
1846 otherwise, if SSL_VERIFY_NONE is set, remaining error codes
1847 can lead to 'unexplainable' connection aborts later.
1848 [Bodo Moeller; problem tracked down by Lutz Jaenicke]
1850 *) Major EVP API cipher revision.
1851 Add hooks for extra EVP features. This allows various cipher
1852 parameters to be set in the EVP interface. Support added for variable
1853 key length ciphers via the EVP_CIPHER_CTX_set_key_length() function and
1854 setting of RC2 and RC5 parameters.
1856 Modify EVP_OpenInit() and EVP_SealInit() to cope with variable key length
1859 Remove lots of duplicated code from the EVP library. For example *every*
1860 cipher init() function handles the 'iv' in the same way according to the
1861 cipher mode. They also all do nothing if the 'key' parameter is NULL and
1862 for CFB and OFB modes they zero ctx->num.
1864 New functionality allows removal of S/MIME code RC2 hack.
1866 Most of the routines have the same form and so can be declared in terms
1869 By shifting this to the top level EVP_CipherInit() it can be removed from
1870 all individual ciphers. If the cipher wants to handle IVs or keys
1871 differently it can set the EVP_CIPH_CUSTOM_IV or EVP_CIPH_ALWAYS_CALL_INIT
1874 Change lots of functions like EVP_EncryptUpdate() to now return a
1875 value: although software versions of the algorithms cannot fail
1876 any installed hardware versions can.
1879 *) Implement SSL_OP_TLS_ROLLBACK_BUG: In ssl3_get_client_key_exchange, if
1880 this option is set, tolerate broken clients that send the negotiated
1881 protocol version number instead of the requested protocol version
1885 *) Call dh_tmp_cb (set by ..._TMP_DH_CB) with correct 'is_export' flag;
1886 i.e. non-zero for export ciphersuites, zero otherwise.
1887 Previous versions had this flag inverted, inconsistent with
1888 rsa_tmp_cb (..._TMP_RSA_CB).
1889 [Bodo Moeller; problem reported by Amit Chopra]
1891 *) Add missing DSA library text string. Work around for some IIS
1892 key files with invalid SEQUENCE encoding.
1895 *) Add a document (doc/standards.txt) that list all kinds of standards
1896 and so on that are implemented in OpenSSL.
1899 *) Enhance c_rehash script. Old version would mishandle certificates
1900 with the same subject name hash and wouldn't handle CRLs at all.
1901 Added -fingerprint option to crl utility, to support new c_rehash
1905 *) Eliminate non-ANSI declarations in crypto.h and stack.h.
1908 *) Fix for SSL server purpose checking. Server checking was
1909 rejecting certificates which had extended key usage present
1910 but no ssl client purpose.
1911 [Steve Henson, reported by Rene Grosser <grosser@hisolutions.com>]
1913 *) Make PKCS#12 code work with no password. The PKCS#12 spec
1914 is a little unclear about how a blank password is handled.
1915 Since the password in encoded as a BMPString with terminating
1916 double NULL a zero length password would end up as just the
1917 double NULL. However no password at all is different and is
1918 handled differently in the PKCS#12 key generation code. NS
1919 treats a blank password as zero length. MSIE treats it as no
1920 password on export: but it will try both on import. We now do
1921 the same: PKCS12_parse() tries zero length and no password if
1922 the password is set to "" or NULL (NULL is now a valid password:
1923 it wasn't before) as does the pkcs12 application.
1926 *) Bugfixes in apps/x509.c: Avoid a memory leak; and don't use
1927 perror when PEM_read_bio_X509_REQ fails, the error message must
1928 be obtained from the error queue.
1931 *) Avoid 'thread_hash' memory leak in crypto/err/err.c by freeing
1932 it in ERR_remove_state if appropriate, and change ERR_get_state
1933 accordingly to avoid race conditions (this is necessary because
1934 thread_hash is no longer constant once set).
1937 *) Bugfix for linux-elf makefile.one.
1940 *) RSA_get_default_method() will now cause a default
1941 RSA_METHOD to be chosen if one doesn't exist already.
1942 Previously this was only set during a call to RSA_new()
1943 or RSA_new_method(NULL) meaning it was possible for
1944 RSA_get_default_method() to return NULL.
1947 *) Added native name translation to the existing DSO code
1948 that will convert (if the flag to do so is set) filenames
1949 that are sufficiently small and have no path information
1950 into a canonical native form. Eg. "blah" converted to
1951 "libblah.so" or "blah.dll" etc.
1954 *) New function ERR_error_string_n(e, buf, len) which is like
1955 ERR_error_string(e, buf), but writes at most 'len' bytes
1956 including the 0 terminator. For ERR_error_string_n, 'buf'
1958 [Damien Miller <djm@mindrot.org>, Bodo Moeller]
1960 *) CONF library reworked to become more general. A new CONF
1961 configuration file reader "class" is implemented as well as a
1962 new functions (NCONF_*, for "New CONF") to handle it. The now
1963 old CONF_* functions are still there, but are reimplemented to
1964 work in terms of the new functions. Also, a set of functions
1965 to handle the internal storage of the configuration data is
1966 provided to make it easier to write new configuration file
1967 reader "classes" (I can definitely see something reading a
1968 configuration file in XML format, for example), called _CONF_*,
1969 or "the configuration storage API"...
1971 The new configuration file reading functions are:
1973 NCONF_new, NCONF_free, NCONF_load, NCONF_load_fp, NCONF_load_bio,
1974 NCONF_get_section, NCONF_get_string, NCONF_get_numbre
1976 NCONF_default, NCONF_WIN32
1978 NCONF_dump_fp, NCONF_dump_bio
1980 NCONF_default and NCONF_WIN32 are method (or "class") choosers,
1981 NCONF_new creates a new CONF object. This works in the same way
1982 as other interfaces in OpenSSL, like the BIO interface.
1983 NCONF_dump_* dump the internal storage of the configuration file,
1984 which is useful for debugging. All other functions take the same
1985 arguments as the old CONF_* functions wth the exception of the
1986 first that must be a `CONF *' instead of a `LHASH *'.
1988 To make it easer to use the new classes with the old CONF_* functions,
1989 the function CONF_set_default_method is provided.
1992 *) Add '-tls1' option to 'openssl ciphers', which was already
1993 mentioned in the documentation but had not been implemented.
1994 (This option is not yet really useful because even the additional
1995 experimental TLS 1.0 ciphers are currently treated as SSL 3.0 ciphers.)
1998 *) Initial DSO code added into libcrypto for letting OpenSSL (and
1999 OpenSSL-based applications) load shared libraries and bind to
2000 them in a portable way.
2001 [Geoff Thorpe, with contributions from Richard Levitte]
2003 Changes between 0.9.5 and 0.9.5a [1 Apr 2000]
2005 *) Make sure _lrotl and _lrotr are only used with MSVC.
2007 *) Use lock CRYPTO_LOCK_RAND correctly in ssleay_rand_status
2008 (the default implementation of RAND_status).
2010 *) Rename openssl x509 option '-crlext', which was added in 0.9.5,
2011 to '-clrext' (= clear extensions), as intended and documented.
2012 [Bodo Moeller; inconsistency pointed out by Michael Attili
2015 *) Fix for HMAC. It wasn't zeroing the rest of the block if the key length
2016 was larger than the MD block size.
2017 [Steve Henson, pointed out by Yost William <YostW@tce.com>]
2019 *) Modernise PKCS12_parse() so it uses STACK_OF(X509) for its ca argument
2020 fix a leak when the ca argument was passed as NULL. Stop X509_PUBKEY_set()
2021 using the passed key: if the passed key was a private key the result
2022 of X509_print(), for example, would be to print out all the private key
2026 *) des_quad_cksum() byte order bug fix.
2027 [Ulf Möller, using the problem description in krb4-0.9.7, where
2028 the solution is attributed to Derrick J Brashear <shadow@DEMENTIA.ORG>]
2030 *) Fix so V_ASN1_APP_CHOOSE works again: however its use is strongly
2032 [Steve Henson, pointed out by Brian Korver <briank@cs.stanford.edu>]
2034 *) For easily testing in shell scripts whether some command
2035 'openssl XXX' exists, the new pseudo-command 'openssl no-XXX'
2036 returns with exit code 0 iff no command of the given name is available.
2037 'no-XXX' is printed in this case, 'XXX' otherwise. In both cases,
2038 the output goes to stdout and nothing is printed to stderr.
2039 Additional arguments are always ignored.
2041 Since for each cipher there is a command of the same name,
2042 the 'no-cipher' compilation switches can be tested this way.
2044 ('openssl no-XXX' is not able to detect pseudo-commands such
2045 as 'quit', 'list-XXX-commands', or 'no-XXX' itself.)
2048 *) Update test suite so that 'make test' succeeds in 'no-rsa' configuration.
2051 *) For SSL_[CTX_]set_tmp_dh, don't create a DH key if SSL_OP_SINGLE_DH_USE
2052 is set; it will be thrown away anyway because each handshake creates
2054 ssl_cert_dup, which is used by SSL_new, now copies DH keys in addition
2055 to parameters -- in previous versions (since OpenSSL 0.9.3) the
2056 'default key' from SSL_CTX_set_tmp_dh would always be lost, meanining
2057 you effectivly got SSL_OP_SINGLE_DH_USE when using this macro.
2060 *) New s_client option -ign_eof: EOF at stdin is ignored, and
2061 'Q' and 'R' lose their special meanings (quit/renegotiate).
2062 This is part of what -quiet does; unlike -quiet, -ign_eof
2063 does not suppress any output.
2066 *) Add compatibility options to the purpose and trust code. The
2067 purpose X509_PURPOSE_ANY is "any purpose" which automatically
2068 accepts a certificate or CA, this was the previous behaviour,
2069 with all the associated security issues.
2071 X509_TRUST_COMPAT is the old trust behaviour: only and
2072 automatically trust self signed roots in certificate store. A
2073 new trust setting X509_TRUST_DEFAULT is used to specify that
2074 a purpose has no associated trust setting and it should instead
2075 use the value in the default purpose.
2078 *) Fix the PKCS#8 DSA private key code so it decodes keys again
2079 and fix a memory leak.
2082 *) In util/mkerr.pl (which implements 'make errors'), preserve
2083 reason strings from the previous version of the .c file, as
2084 the default to have only downcase letters (and digits) in
2085 automatically generated reasons codes is not always appropriate.
2088 *) In ERR_load_ERR_strings(), build an ERR_LIB_SYS error reason table
2089 using strerror. Previously, ERR_reason_error_string() returned
2090 library names as reason strings for SYSerr; but SYSerr is a special
2091 case where small numbers are errno values, not library numbers.
2094 *) Add '-dsaparam' option to 'openssl dhparam' application. This
2095 converts DSA parameters into DH parameters. (When creating parameters,
2096 DSA_generate_parameters is used.)
2099 *) Include 'length' (recommended exponent length) in C code generated
2100 by 'openssl dhparam -C'.
2103 *) The second argument to set_label in perlasm was already being used
2104 so couldn't be used as a "file scope" flag. Moved to third argument
2108 *) In PEM_ASN1_write_bio and some other functions, use RAND_pseudo_bytes
2109 instead of RAND_bytes for encryption IVs and salts.
2112 *) Include RAND_status() into RAND_METHOD instead of implementing
2113 it only for md_rand.c Otherwise replacing the PRNG by calling
2114 RAND_set_rand_method would be impossible.
2117 *) Don't let DSA_generate_key() enter an infinite loop if the random
2118 number generation fails.
2121 *) New 'rand' application for creating pseudo-random output.
2124 *) Added configuration support for Linux/IA64
2125 [Rolf Haberrecker <rolf@suse.de>]
2127 *) Assembler module support for Mingw32.
2130 *) Shared library support for HPUX (in shlib/).
2131 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE> and Anonymous]
2133 *) Shared library support for Solaris gcc.
2134 [Lutz Behnke <behnke@trustcenter.de>]
2136 Changes between 0.9.4 and 0.9.5 [28 Feb 2000]
2138 *) PKCS7_encrypt() was adding text MIME headers twice because they
2139 were added manually and by SMIME_crlf_copy().
2142 *) In bntest.c don't call BN_rand with zero bits argument.
2143 [Steve Henson, pointed out by Andrew W. Gray <agray@iconsinc.com>]
2145 *) BN_mul bugfix: In bn_mul_part_recursion() only the a>a[n] && b>b[n]
2146 case was implemented. This caused BN_div_recp() to fail occasionally.
2149 *) Add an optional second argument to the set_label() in the perl
2150 assembly language builder. If this argument exists and is set
2151 to 1 it signals that the assembler should use a symbol whose
2152 scope is the entire file, not just the current function. This
2153 is needed with MASM which uses the format label:: for this scope.
2154 [Steve Henson, pointed out by Peter Runestig <peter@runestig.com>]
2156 *) Change the ASN1 types so they are typedefs by default. Before
2157 almost all types were #define'd to ASN1_STRING which was causing
2158 STACK_OF() problems: you couldn't declare STACK_OF(ASN1_UTF8STRING)
2162 *) Change names of new functions to the new get1/get0 naming
2163 convention: After 'get1', the caller owns a reference count
2164 and has to call ..._free; 'get0' returns a pointer to some
2165 data structure without incrementing reference counters.
2166 (Some of the existing 'get' functions increment a reference
2167 counter, some don't.)
2168 Similarly, 'set1' and 'add1' functions increase reference
2169 counters or duplicate objects.
2172 *) Allow for the possibility of temp RSA key generation failure:
2173 the code used to assume it always worked and crashed on failure.
2176 *) Fix potential buffer overrun problem in BIO_printf().
2177 [Ulf Möller, using public domain code by Patrick Powell; problem
2178 pointed out by David Sacerdote <das33@cornell.edu>]
2180 *) Support EGD <http://www.lothar.com/tech/crypto/>. New functions
2181 RAND_egd() and RAND_status(). In the command line application,
2182 the EGD socket can be specified like a seed file using RANDFILE
2186 *) Allow the string CERTIFICATE to be tolerated in PKCS#7 structures.
2187 Some CAs (e.g. Verisign) distribute certificates in this form.
2190 *) Remove the SSL_ALLOW_ADH compile option and set the default cipher
2191 list to exclude them. This means that no special compilation option
2192 is needed to use anonymous DH: it just needs to be included in the
2196 *) Change the EVP_MD_CTX_type macro so its meaning consistent with
2197 EVP_MD_type. The old functionality is available in a new macro called
2198 EVP_MD_md(). Change code that uses it and update docs.
2201 *) ..._ctrl functions now have corresponding ..._callback_ctrl functions
2202 where the 'void *' argument is replaced by a function pointer argument.
2203 Previously 'void *' was abused to point to functions, which works on
2204 many platforms, but is not correct. As these functions are usually
2205 called by macros defined in OpenSSL header files, most source code
2206 should work without changes.
2209 *) <openssl/opensslconf.h> (which is created by Configure) now contains
2210 sections with information on -D... compiler switches used for
2211 compiling the library so that applications can see them. To enable
2212 one of these sections, a pre-processor symbol OPENSSL_..._DEFINES
2213 must be defined. E.g.,
2214 #define OPENSSL_ALGORITHM_DEFINES
2215 #include <openssl/opensslconf.h>
2216 defines all pertinent NO_<algo> symbols, such as NO_IDEA, NO_RSA, etc.
2217 [Richard Levitte, Ulf and Bodo Möller]
2219 *) Bugfix: Tolerate fragmentation and interleaving in the SSL 3/TLS
2223 *) Change the 'other' type in certificate aux info to a STACK_OF
2224 X509_ALGOR. Although not an AlgorithmIdentifier as such it has
2225 the required ASN1 format: arbitrary types determined by an OID.
2228 *) Add some PEM_write_X509_REQ_NEW() functions and a command line
2229 argument to 'req'. This is not because the function is newer or
2230 better than others it just uses the work 'NEW' in the certificate
2231 request header lines. Some software needs this.
2234 *) Reorganise password command line arguments: now passwords can be
2235 obtained from various sources. Delete the PEM_cb function and make
2236 it the default behaviour: i.e. if the callback is NULL and the
2237 usrdata argument is not NULL interpret it as a null terminated pass
2238 phrase. If usrdata and the callback are NULL then the pass phrase
2239 is prompted for as usual.
2242 *) Add support for the Compaq Atalla crypto accelerator. If it is installed,
2243 the support is automatically enabled. The resulting binaries will
2244 autodetect the card and use it if present.
2245 [Ben Laurie and Compaq Inc.]
2247 *) Work around for Netscape hang bug. This sends certificate request
2248 and server done in one record. Since this is perfectly legal in the
2249 SSL/TLS protocol it isn't a "bug" option and is on by default. See
2250 the bugs/SSLv3 entry for more info.
2253 *) HP-UX tune-up: new unified configs, HP C compiler bug workaround.
2256 *) Add -rand argument to smime and pkcs12 applications and read/write
2260 *) New 'passwd' tool for crypt(3) and apr1 password hashes.
2263 *) Add command line password options to the remaining applications.
2266 *) Bug fix for BN_div_recp() for numerators with an even number of
2270 *) More tests in bntest.c, and changed test_bn output.
2273 *) ./config recognizes MacOS X now.
2276 *) Bug fix for BN_div() when the first words of num and divsor are
2277 equal (it gave wrong results if (rem=(n1-q*d0)&BN_MASK2) < d0).
2280 *) Add support for various broken PKCS#8 formats, and command line
2281 options to produce them.
2284 *) New functions BN_CTX_start(), BN_CTX_get() and BT_CTX_end() to
2285 get temporary BIGNUMs from a BN_CTX.
2288 *) Correct return values in BN_mod_exp_mont() and BN_mod_exp2_mont()
2292 *) Change the SSLeay_add_all_*() functions to OpenSSL_add_all_*() and
2293 include a #define from the old name to the new. The original intent
2294 was that statically linked binaries could for example just call
2295 SSLeay_add_all_ciphers() to just add ciphers to the table and not
2296 link with digests. This never worked becayse SSLeay_add_all_digests()
2297 and SSLeay_add_all_ciphers() were in the same source file so calling
2298 one would link with the other. They are now in separate source files.
2301 *) Add a new -notext option to 'ca' and a -pubkey option to 'spkac'.
2304 *) Use a less unusual form of the Miller-Rabin primality test (it used
2305 a binary algorithm for exponentiation integrated into the Miller-Rabin
2306 loop, our standard modexp algorithms are faster).
2309 *) Support for the EBCDIC character set completed.
2310 [Martin Kraemer <Martin.Kraemer@Mch.SNI.De>]
2312 *) Source code cleanups: use const where appropriate, eliminate casts,
2313 use void * instead of char * in lhash.
2316 *) Bugfix: ssl3_send_server_key_exchange was not restartable
2317 (the state was not changed to SSL3_ST_SW_KEY_EXCH_B, and because of
2318 this the server could overwrite ephemeral keys that the client
2322 *) Turn DSA_is_prime into a macro that calls BN_is_prime,
2323 using 50 iterations of the Rabin-Miller test.
2325 DSA_generate_parameters now uses BN_is_prime_fasttest (with 50
2326 iterations of the Rabin-Miller test as required by the appendix
2327 to FIPS PUB 186[-1]) instead of DSA_is_prime.
2328 As BN_is_prime_fasttest includes trial division, DSA parameter
2329 generation becomes much faster.
2331 This implies a change for the callback functions in DSA_is_prime
2332 and DSA_generate_parameters: The callback function is called once
2333 for each positive witness in the Rabin-Miller test, not just
2334 occasionally in the inner loop; and the parameters to the
2335 callback function now provide an iteration count for the outer
2336 loop rather than for the current invocation of the inner loop.
2337 DSA_generate_parameters additionally can call the callback
2338 function with an 'iteration count' of -1, meaning that a
2339 candidate has passed the trial division test (when q is generated
2340 from an application-provided seed, trial division is skipped).
2343 *) New function BN_is_prime_fasttest that optionally does trial
2344 division before starting the Rabin-Miller test and has
2345 an additional BN_CTX * argument (whereas BN_is_prime always
2346 has to allocate at least one BN_CTX).
2347 'callback(1, -1, cb_arg)' is called when a number has passed the
2348 trial division stage.
2351 *) Fix for bug in CRL encoding. The validity dates weren't being handled
2355 *) New -pkcs12 option to CA.pl script to write out a PKCS#12 file.
2358 *) New function BN_pseudo_rand().
2361 *) Clean up BN_mod_mul_montgomery(): replace the broken (and unreadable)
2362 bignum version of BN_from_montgomery() with the working code from
2363 SSLeay 0.9.0 (the word based version is faster anyway), and clean up
2367 *) Avoid a race condition in s2_clnt.c (function get_server_hello) that
2368 made it impossible to use the same SSL_SESSION data structure in
2369 SSL2 clients in multiple threads.
2372 *) The return value of RAND_load_file() no longer counts bytes obtained
2373 by stat(). RAND_load_file(..., -1) is new and uses the complete file
2374 to seed the PRNG (previously an explicit byte count was required).
2375 [Ulf Möller, Bodo Möller]
2377 *) Clean up CRYPTO_EX_DATA functions, some of these didn't have prototypes
2378 used (char *) instead of (void *) and had casts all over the place.
2381 *) Make BN_generate_prime() return NULL on error if ret!=NULL.
2384 *) Retain source code compatibility for BN_prime_checks macro:
2385 BN_is_prime(..., BN_prime_checks, ...) now uses
2386 BN_prime_checks_for_size to determine the appropriate number of
2387 Rabin-Miller iterations.
2390 *) Diffie-Hellman uses "safe" primes: DH_check() return code renamed to
2391 DH_CHECK_P_NOT_SAFE_PRIME.
2392 (Check if this is true? OpenPGP calls them "strong".)
2395 *) Merge the functionality of "dh" and "gendh" programs into a new program
2396 "dhparam". The old programs are retained for now but will handle DH keys
2397 (instead of parameters) in future.
2400 *) Make the ciphers, s_server and s_client programs check the return values
2401 when a new cipher list is set.
2404 *) Enhance the SSL/TLS cipher mechanism to correctly handle the TLS 56bit
2405 ciphers. Before when the 56bit ciphers were enabled the sorting was
2408 The syntax for the cipher sorting has been extended to support sorting by
2409 cipher-strength (using the strength_bits hard coded in the tables).
2410 The new command is "@STRENGTH" (see also doc/apps/ciphers.pod).
2412 Fix a bug in the cipher-command parser: when supplying a cipher command
2413 string with an "undefined" symbol (neither command nor alphanumeric
2414 [A-Za-z0-9], ssl_set_cipher_list used to hang in an endless loop. Now
2415 an error is flagged.
2417 Due to the strength-sorting extension, the code of the
2418 ssl_create_cipher_list() function was completely rearranged. I hope that
2419 the readability was also increased :-)
2420 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
2422 *) Minor change to 'x509' utility. The -CAcreateserial option now uses 1
2423 for the first serial number and places 2 in the serial number file. This
2424 avoids problems when the root CA is created with serial number zero and
2425 the first user certificate has the same issuer name and serial number
2429 *) Fixes to X509_ATTRIBUTE utilities, change the 'req' program so it uses
2430 the new code. Add documentation for this stuff.
2433 *) Changes to X509_ATTRIBUTE utilities. These have been renamed from
2434 X509_*() to X509at_*() on the grounds that they don't handle X509
2435 structures and behave in an analagous way to the X509v3 functions:
2436 they shouldn't be called directly but wrapper functions should be used
2439 So we also now have some wrapper functions that call the X509at functions
2440 when passed certificate requests. (TO DO: similar things can be done with
2441 PKCS#7 signed and unsigned attributes, PKCS#12 attributes and a few other
2442 things. Some of these need some d2i or i2d and print functionality
2443 because they handle more complex structures.)
2446 *) Add missing #ifndefs that caused missing symbols when building libssl
2447 as a shared library without RSA. Use #ifndef NO_SSL2 instead of
2448 NO_RSA in ssl/s2*.c.
2449 [Kris Kennaway <kris@hub.freebsd.org>, modified by Ulf Möller]
2451 *) Precautions against using the PRNG uninitialized: RAND_bytes() now
2452 has a return value which indicates the quality of the random data
2453 (1 = ok, 0 = not seeded). Also an error is recorded on the thread's
2454 error queue. New function RAND_pseudo_bytes() generates output that is
2455 guaranteed to be unique but not unpredictable. RAND_add is like
2456 RAND_seed, but takes an extra argument for an entropy estimate
2457 (RAND_seed always assumes full entropy).
2460 *) Do more iterations of Rabin-Miller probable prime test (specifically,
2461 3 for 1024-bit primes, 6 for 512-bit primes, 12 for 256-bit primes
2462 instead of only 2 for all lengths; see BN_prime_checks_for_size definition
2463 in crypto/bn/bn_prime.c for the complete table). This guarantees a
2464 false-positive rate of at most 2^-80 for random input.
2467 *) Rewrite ssl3_read_n (ssl/s3_pkt.c) avoiding a couple of bugs.
2470 *) New function X509_CTX_rget_chain() (renamed to X509_CTX_get1_chain
2471 in the 0.9.5 release), this returns the chain
2472 from an X509_CTX structure with a dup of the stack and all
2473 the X509 reference counts upped: so the stack will exist
2474 after X509_CTX_cleanup() has been called. Modify pkcs12.c
2477 Also make SSL_SESSION_print() print out the verify return
2481 *) Add manpage for the pkcs12 command. Also change the default
2482 behaviour so MAC iteration counts are used unless the new
2483 -nomaciter option is used. This improves file security and
2484 only older versions of MSIE (4.0 for example) need it.
2487 *) Honor the no-xxx Configure options when creating .DEF files.
2490 *) Add PKCS#10 attributes to field table: challengePassword,
2491 unstructuredName and unstructuredAddress. These are taken from
2492 draft PKCS#9 v2.0 but are compatible with v1.2 provided no
2493 international characters are used.
2495 More changes to X509_ATTRIBUTE code: allow the setting of types
2496 based on strings. Remove the 'loc' parameter when adding
2497 attributes because these will be a SET OF encoding which is sorted
2501 *) Initial changes to the 'req' utility to allow request generation
2502 automation. This will allow an application to just generate a template
2503 file containing all the field values and have req construct the
2506 Initial support for X509_ATTRIBUTE handling. Stacks of these are
2507 used all over the place including certificate requests and PKCS#7
2508 structures. They are currently handled manually where necessary with
2509 some primitive wrappers for PKCS#7. The new functions behave in a
2510 manner analogous to the X509 extension functions: they allow
2511 attributes to be looked up by NID and added.
2513 Later something similar to the X509V3 code would be desirable to
2514 automatically handle the encoding, decoding and printing of the
2515 more complex types. The string types like challengePassword can
2516 be handled by the string table functions.
2518 Also modified the multi byte string table handling. Now there is
2519 a 'global mask' which masks out certain types. The table itself
2520 can use the flag STABLE_NO_MASK to ignore the mask setting: this
2521 is useful when for example there is only one permissible type
2522 (as in countryName) and using the mask might result in no valid
2526 *) Clean up 'Finished' handling, and add functions SSL_get_finished and
2527 SSL_get_peer_finished to allow applications to obtain the latest
2528 Finished messages sent to the peer or expected from the peer,
2529 respectively. (SSL_get_peer_finished is usually the Finished message
2530 actually received from the peer, otherwise the protocol will be aborted.)
2532 As the Finished message are message digests of the complete handshake
2533 (with a total of 192 bits for TLS 1.0 and more for SSL 3.0), they can
2534 be used for external authentication procedures when the authentication
2535 provided by SSL/TLS is not desired or is not enough.
2538 *) Enhanced support for Alpha Linux is added. Now ./config checks if
2539 the host supports BWX extension and if Compaq C is present on the
2540 $PATH. Just exploiting of the BWX extension results in 20-30%
2541 performance kick for some algorithms, e.g. DES and RC4 to mention
2542 a couple. Compaq C in turn generates ~20% faster code for MD5 and
2546 *) Add support for MS "fast SGC". This is arguably a violation of the
2547 SSL3/TLS protocol. Netscape SGC does two handshakes: the first with
2548 weak crypto and after checking the certificate is SGC a second one
2549 with strong crypto. MS SGC stops the first handshake after receiving
2550 the server certificate message and sends a second client hello. Since
2551 a server will typically do all the time consuming operations before
2552 expecting any further messages from the client (server key exchange
2553 is the most expensive) there is little difference between the two.
2555 To get OpenSSL to support MS SGC we have to permit a second client
2556 hello message after we have sent server done. In addition we have to
2557 reset the MAC if we do get this second client hello.
2560 *) Add a function 'd2i_AutoPrivateKey()' this will automatically decide
2561 if a DER encoded private key is RSA or DSA traditional format. Changed
2562 d2i_PrivateKey_bio() to use it. This is only needed for the "traditional"
2563 format DER encoded private key. Newer code should use PKCS#8 format which
2564 has the key type encoded in the ASN1 structure. Added DER private key
2565 support to pkcs8 application.
2568 *) SSL 3/TLS 1 servers now don't request certificates when an anonymous
2569 ciphersuites has been selected (as required by the SSL 3/TLS 1
2570 specifications). Exception: When SSL_VERIFY_FAIL_IF_NO_PEER_CERT
2571 is set, we interpret this as a request to violate the specification
2572 (the worst that can happen is a handshake failure, and 'correct'
2573 behaviour would result in a handshake failure anyway).
2576 *) In SSL_CTX_add_session, take into account that there might be multiple
2577 SSL_SESSION structures with the same session ID (e.g. when two threads
2578 concurrently obtain them from an external cache).
2579 The internal cache can handle only one SSL_SESSION with a given ID,
2580 so if there's a conflict, we now throw out the old one to achieve
2584 *) Add OIDs for idea and blowfish in CBC mode. This will allow both
2585 to be used in PKCS#5 v2.0 and S/MIME. Also add checking to
2586 some routines that use cipher OIDs: some ciphers do not have OIDs
2587 defined and so they cannot be used for S/MIME and PKCS#5 v2.0 for
2591 *) Simplify the trust setting structure and code. Now we just have
2592 two sequences of OIDs for trusted and rejected settings. These will
2593 typically have values the same as the extended key usage extension
2594 and any application specific purposes.
2596 The trust checking code now has a default behaviour: it will just
2597 check for an object with the same NID as the passed id. Functions can
2598 be provided to override either the default behaviour or the behaviour
2599 for a given id. SSL client, server and email already have functions
2600 in place for compatibility: they check the NID and also return "trusted"
2601 if the certificate is self signed.
2604 *) Add d2i,i2d bio/fp functions for PrivateKey: these convert the
2605 traditional format into an EVP_PKEY structure.
2608 *) Add a password callback function PEM_cb() which either prompts for
2609 a password if usr_data is NULL or otherwise assumes it is a null
2610 terminated password. Allow passwords to be passed on command line
2611 environment or config files in a few more utilities.
2614 *) Add a bunch of DER and PEM functions to handle PKCS#8 format private
2615 keys. Add some short names for PKCS#8 PBE algorithms and allow them
2616 to be specified on the command line for the pkcs8 and pkcs12 utilities.
2617 Update documentation.
2620 *) Support for ASN1 "NULL" type. This could be handled before by using
2621 ASN1_TYPE but there wasn't any function that would try to read a NULL
2622 and produce an error if it couldn't. For compatibility we also have
2623 ASN1_NULL_new() and ASN1_NULL_free() functions but these are faked and
2624 don't allocate anything because they don't need to.
2627 *) Initial support for MacOS is now provided. Examine INSTALL.MacOS
2629 [Andy Polyakov, Roy Woods <roy@centicsystems.ca>]
2631 *) Rebuild of the memory allocation routines used by OpenSSL code and
2632 possibly others as well. The purpose is to make an interface that
2633 provide hooks so anyone can build a separate set of allocation and
2634 deallocation routines to be used by OpenSSL, for example memory
2635 pool implementations, or something else, which was previously hard
2636 since Malloc(), Realloc() and Free() were defined as macros having
2637 the values malloc, realloc and free, respectively (except for Win32
2638 compilations). The same is provided for memory debugging code.
2639 OpenSSL already comes with functionality to find memory leaks, but
2640 this gives people a chance to debug other memory problems.
2642 With these changes, a new set of functions and macros have appeared:
2644 CRYPTO_set_mem_debug_functions() [F]
2645 CRYPTO_get_mem_debug_functions() [F]
2646 CRYPTO_dbg_set_options() [F]
2647 CRYPTO_dbg_get_options() [F]
2648 CRYPTO_malloc_debug_init() [M]
2650 The memory debug functions are NULL by default, unless the library
2651 is compiled with CRYPTO_MDEBUG or friends is defined. If someone
2652 wants to debug memory anyway, CRYPTO_malloc_debug_init() (which
2653 gives the standard debugging functions that come with OpenSSL) or
2654 CRYPTO_set_mem_debug_functions() (tells OpenSSL to use functions
2655 provided by the library user) must be used. When the standard
2656 debugging functions are used, CRYPTO_dbg_set_options can be used to
2657 request additional information:
2658 CRYPTO_dbg_set_options(V_CYRPTO_MDEBUG_xxx) corresponds to setting
2659 the CRYPTO_MDEBUG_xxx macro when compiling the library.
2661 Also, things like CRYPTO_set_mem_functions will always give the
2662 expected result (the new set of functions is used for allocation
2663 and deallocation) at all times, regardless of platform and compiler
2666 To finish it up, some functions that were never use in any other
2667 way than through macros have a new API and new semantic:
2670 CRYPTO_dbg_realloc()
2673 All macros of value have retained their old syntax.
2674 [Richard Levitte and Bodo Moeller]
2676 *) Some S/MIME fixes. The OID for SMIMECapabilities was wrong, the
2677 ordering of SMIMECapabilities wasn't in "strength order" and there
2678 was a missing NULL in the AlgorithmIdentifier for the SHA1 signature
2682 *) Some ASN1 types with illegal zero length encoding (INTEGER,
2683 ENUMERATED and OBJECT IDENTIFIER) choked the ASN1 routines.
2684 [Frans Heymans <fheymans@isaserver.be>, modified by Steve Henson]
2686 *) Merge in my S/MIME library for OpenSSL. This provides a simple
2687 S/MIME API on top of the PKCS#7 code, a MIME parser (with enough
2688 functionality to handle multipart/signed properly) and a utility
2689 called 'smime' to call all this stuff. This is based on code I
2690 originally wrote for Celo who have kindly allowed it to be
2691 included in OpenSSL.
2694 *) Add variants des_set_key_checked and des_set_key_unchecked of
2695 des_set_key (aka des_key_sched). Global variable des_check_key
2696 decides which of these is called by des_set_key; this way
2697 des_check_key behaves as it always did, but applications and
2698 the library itself, which was buggy for des_check_key == 1,
2699 have a cleaner way to pick the version they need.
2702 *) New function PKCS12_newpass() which changes the password of a
2706 *) Modify X509_TRUST and X509_PURPOSE so it also uses a static and
2707 dynamic mix. In both cases the ids can be used as an index into the
2708 table. Also modified the X509_TRUST_add() and X509_PURPOSE_add()
2709 functions so they accept a list of the field values and the
2710 application doesn't need to directly manipulate the X509_TRUST
2714 *) Modify the ASN1_STRING_TABLE stuff so it also uses bsearch and doesn't
2718 *) Modify the way the V3 extension code looks up extensions. This now
2719 works in a similar way to the object code: we have some "standard"
2720 extensions in a static table which is searched with OBJ_bsearch()
2721 and the application can add dynamic ones if needed. The file
2722 crypto/x509v3/ext_dat.h now has the info: this file needs to be
2723 updated whenever a new extension is added to the core code and kept
2724 in ext_nid order. There is a simple program 'tabtest.c' which checks
2725 this. New extensions are not added too often so this file can readily
2726 be maintained manually.
2728 There are two big advantages in doing things this way. The extensions
2729 can be looked up immediately and no longer need to be "added" using
2730 X509V3_add_standard_extensions(): this function now does nothing.
2731 [Side note: I get *lots* of email saying the extension code doesn't
2732 work because people forget to call this function]
2733 Also no dynamic allocation is done unless new extensions are added:
2734 so if we don't add custom extensions there is no need to call
2735 X509V3_EXT_cleanup().
2738 *) Modify enc utility's salting as follows: make salting the default. Add a
2739 magic header, so unsalted files fail gracefully instead of just decrypting
2740 to garbage. This is because not salting is a big security hole, so people
2741 should be discouraged from doing it.
2744 *) Fixes and enhancements to the 'x509' utility. It allowed a message
2745 digest to be passed on the command line but it only used this
2746 parameter when signing a certificate. Modified so all relevant
2747 operations are affected by the digest parameter including the
2748 -fingerprint and -x509toreq options. Also -x509toreq choked if a
2749 DSA key was used because it didn't fix the digest.
2752 *) Initial certificate chain verify code. Currently tests the untrusted
2753 certificates for consistency with the verify purpose (which is set
2754 when the X509_STORE_CTX structure is set up) and checks the pathlength.
2756 There is a NO_CHAIN_VERIFY compilation option to keep the old behaviour:
2757 this is because it will reject chains with invalid extensions whereas
2758 every previous version of OpenSSL and SSLeay made no checks at all.
2760 Trust code: checks the root CA for the relevant trust settings. Trust
2761 settings have an initial value consistent with the verify purpose: e.g.
2762 if the verify purpose is for SSL client use it expects the CA to be
2763 trusted for SSL client use. However the default value can be changed to
2764 permit custom trust settings: one example of this would be to only trust
2765 certificates from a specific "secure" set of CAs.
2767 Also added X509_STORE_CTX_new() and X509_STORE_CTX_free() functions
2768 which should be used for version portability: especially since the
2769 verify structure is likely to change more often now.
2771 SSL integration. Add purpose and trust to SSL_CTX and SSL and functions
2772 to set them. If not set then assume SSL clients will verify SSL servers
2775 Two new options to the verify program: -untrusted allows a set of
2776 untrusted certificates to be passed in and -purpose which sets the
2777 intended purpose of the certificate. If a purpose is set then the
2778 new chain verify code is used to check extension consistency.
2781 *) Support for the authority information access extension.
2784 *) Modify RSA and DSA PEM read routines to transparently handle
2785 PKCS#8 format private keys. New *_PUBKEY_* functions that handle
2786 public keys in a format compatible with certificate
2787 SubjectPublicKeyInfo structures. Unfortunately there were already
2788 functions called *_PublicKey_* which used various odd formats so
2789 these are retained for compatibility: however the DSA variants were
2790 never in a public release so they have been deleted. Changed dsa/rsa
2791 utilities to handle the new format: note no releases ever handled public
2792 keys so we should be OK.
2794 The primary motivation for this change is to avoid the same fiasco
2795 that dogs private keys: there are several incompatible private key
2796 formats some of which are standard and some OpenSSL specific and
2797 require various evil hacks to allow partial transparent handling and
2798 even then it doesn't work with DER formats. Given the option anything
2799 other than PKCS#8 should be dumped: but the other formats have to
2800 stay in the name of compatibility.
2802 With public keys and the benefit of hindsight one standard format
2803 is used which works with EVP_PKEY, RSA or DSA structures: though
2804 it clearly returns an error if you try to read the wrong kind of key.
2806 Added a -pubkey option to the 'x509' utility to output the public key.
2807 Also rename the EVP_PKEY_get_*() to EVP_PKEY_rget_*()
2808 (renamed to EVP_PKEY_get1_*() in the OpenSSL 0.9.5 release) and add
2809 EVP_PKEY_rset_*() functions (renamed to EVP_PKEY_set1_*())
2810 that do the same as the EVP_PKEY_assign_*() except they up the
2811 reference count of the added key (they don't "swallow" the
2815 *) Fixes to crypto/x509/by_file.c the code to read in certificates and
2816 CRLs would fail if the file contained no certificates or no CRLs:
2817 added a new function to read in both types and return the number
2818 read: this means that if none are read it will be an error. The
2819 DER versions of the certificate and CRL reader would always fail
2820 because it isn't possible to mix certificates and CRLs in DER format
2821 without choking one or the other routine. Changed this to just read
2822 a certificate: this is the best we can do. Also modified the code
2823 in apps/verify.c to take notice of return codes: it was previously
2824 attempting to read in certificates from NULL pointers and ignoring
2825 any errors: this is one reason why the cert and CRL reader seemed
2826 to work. It doesn't check return codes from the default certificate
2827 routines: these may well fail if the certificates aren't installed.
2830 *) Code to support otherName option in GeneralName.
2833 *) First update to verify code. Change the verify utility
2834 so it warns if it is passed a self signed certificate:
2835 for consistency with the normal behaviour. X509_verify
2836 has been modified to it will now verify a self signed
2837 certificate if *exactly* the same certificate appears
2838 in the store: it was previously impossible to trust a
2839 single self signed certificate. This means that:
2840 openssl verify ss.pem
2841 now gives a warning about a self signed certificate but
2842 openssl verify -CAfile ss.pem ss.pem
2846 *) For servers, store verify_result in SSL_SESSION data structure
2847 (and add it to external session representation).
2848 This is needed when client certificate verifications fails,
2849 but an application-provided verification callback (set by
2850 SSL_CTX_set_cert_verify_callback) allows accepting the session
2851 anyway (i.e. leaves x509_store_ctx->error != X509_V_OK
2852 but returns 1): When the session is reused, we have to set
2853 ssl->verify_result to the appropriate error code to avoid
2855 [Bodo Moeller, problem pointed out by Lutz Jaenicke]
2857 *) Fix a bug in the new PKCS#7 code: it didn't consider the
2858 case in PKCS7_dataInit() where the signed PKCS7 structure
2859 didn't contain any existing data because it was being created.
2860 [Po-Cheng Chen <pocheng@nst.com.tw>, slightly modified by Steve Henson]
2862 *) Add a salt to the key derivation routines in enc.c. This
2863 forms the first 8 bytes of the encrypted file. Also add a
2864 -S option to allow a salt to be input on the command line.
2867 *) New function X509_cmp(). Oddly enough there wasn't a function
2868 to compare two certificates. We do this by working out the SHA1
2869 hash and comparing that. X509_cmp() will be needed by the trust
2873 *) SSL_get1_session() is like SSL_get_session(), but increments
2874 the reference count in the SSL_SESSION returned.
2875 [Geoff Thorpe <geoff@eu.c2.net>]
2877 *) Fix for 'req': it was adding a null to request attributes.
2878 Also change the X509_LOOKUP and X509_INFO code to handle
2879 certificate auxiliary information.
2882 *) Add support for 40 and 64 bit RC2 and RC4 algorithms: document
2886 *) Add the possibility to add extra information to the memory leak
2887 detecting output, to form tracebacks, showing from where each
2888 allocation was originated: CRYPTO_push_info("constant string") adds
2889 the string plus current file name and line number to a per-thread
2890 stack, CRYPTO_pop_info() does the obvious, CRYPTO_remove_all_info()
2891 is like calling CYRPTO_pop_info() until the stack is empty.
2892 Also updated memory leak detection code to be multi-thread-safe.
2895 *) Add options -text and -noout to pkcs7 utility and delete the
2896 encryption options which never did anything. Update docs.
2899 *) Add options to some of the utilities to allow the pass phrase
2900 to be included on either the command line (not recommended on
2901 OSes like Unix) or read from the environment. Update the
2902 manpages and fix a few bugs.
2905 *) Add a few manpages for some of the openssl commands.
2908 *) Fix the -revoke option in ca. It was freeing up memory twice,
2909 leaking and not finding already revoked certificates.
2912 *) Extensive changes to support certificate auxiliary information.
2913 This involves the use of X509_CERT_AUX structure and X509_AUX
2914 functions. An X509_AUX function such as PEM_read_X509_AUX()
2915 can still read in a certificate file in the usual way but it
2916 will also read in any additional "auxiliary information". By
2917 doing things this way a fair degree of compatibility can be
2918 retained: existing certificates can have this information added
2919 using the new 'x509' options.
2921 Current auxiliary information includes an "alias" and some trust
2922 settings. The trust settings will ultimately be used in enhanced
2923 certificate chain verification routines: currently a certificate
2924 can only be trusted if it is self signed and then it is trusted
2928 *) Fix assembler for Alpha (tested only on DEC OSF not Linux or *BSD).
2929 The problem was that one of the replacement routines had not been working
2930 since SSLeay releases. For now the offending routine has been replaced
2931 with non-optimised assembler. Even so, this now gives around 95%
2932 performance improvement for 1024 bit RSA signs.
2935 *) Hack to fix PKCS#7 decryption when used with some unorthodox RC2
2936 handling. Most clients have the effective key size in bits equal to
2937 the key length in bits: so a 40 bit RC2 key uses a 40 bit (5 byte) key.
2938 A few however don't do this and instead use the size of the decrypted key
2939 to determine the RC2 key length and the AlgorithmIdentifier to determine
2940 the effective key length. In this case the effective key length can still
2941 be 40 bits but the key length can be 168 bits for example. This is fixed
2942 by manually forcing an RC2 key into the EVP_PKEY structure because the
2943 EVP code can't currently handle unusual RC2 key sizes: it always assumes
2944 the key length and effective key length are equal.
2947 *) Add a bunch of functions that should simplify the creation of
2948 X509_NAME structures. Now you should be able to do:
2949 X509_NAME_add_entry_by_txt(nm, "CN", MBSTRING_ASC, "Steve", -1, -1, 0);
2950 and have it automatically work out the correct field type and fill in
2951 the structures. The more adventurous can try:
2952 X509_NAME_add_entry_by_txt(nm, field, MBSTRING_UTF8, str, -1, -1, 0);
2953 and it will (hopefully) work out the correct multibyte encoding.
2956 *) Change the 'req' utility to use the new field handling and multibyte
2957 copy routines. Before the DN field creation was handled in an ad hoc
2958 way in req, ca, and x509 which was rather broken and didn't support
2959 BMPStrings or UTF8Strings. Since some software doesn't implement
2960 BMPStrings or UTF8Strings yet, they can be enabled using the config file
2961 using the dirstring_type option. See the new comment in the default
2962 openssl.cnf for more info.
2965 *) Make crypto/rand/md_rand.c more robust:
2966 - Assure unique random numbers after fork().
2967 - Make sure that concurrent threads access the global counter and
2968 md serializably so that we never lose entropy in them
2969 or use exactly the same state in multiple threads.
2970 Access to the large state is not always serializable because
2971 the additional locking could be a performance killer, and
2972 md should be large enough anyway.
2975 *) New file apps/app_rand.c with commonly needed functionality
2976 for handling the random seed file.
2978 Use the random seed file in some applications that previously did not:
2980 dsaparam -genkey (which also ignored its '-rand' option),
2983 x509 (when signing).
2984 Except on systems with /dev/urandom, it is crucial to have a random
2985 seed file at least for key creation, DSA signing, and for DH exchanges;
2986 for RSA signatures we could do without one.
2988 gendh and gendsa (unlike genrsa) used to read only the first byte
2989 of each file listed in the '-rand' option. The function as previously
2990 found in genrsa is now in app_rand.c and is used by all programs
2991 that support '-rand'.
2994 *) In RAND_write_file, use mode 0600 for creating files;
2995 don't just chmod when it may be too late.
2998 *) Report an error from X509_STORE_load_locations
2999 when X509_LOOKUP_load_file or X509_LOOKUP_add_dir failed.
3002 *) New function ASN1_mbstring_copy() this copies a string in either
3003 ASCII, Unicode, Universal (4 bytes per character) or UTF8 format
3004 into an ASN1_STRING type. A mask of permissible types is passed
3005 and it chooses the "minimal" type to use or an error if not type
3009 *) Add function equivalents to the various macros in asn1.h. The old
3010 macros are retained with an M_ prefix. Code inside the library can
3011 use the M_ macros. External code (including the openssl utility)
3012 should *NOT* in order to be "shared library friendly".
3015 *) Add various functions that can check a certificate's extensions
3016 to see if it usable for various purposes such as SSL client,
3017 server or S/MIME and CAs of these types. This is currently
3018 VERY EXPERIMENTAL but will ultimately be used for certificate chain
3019 verification. Also added a -purpose flag to x509 utility to
3020 print out all the purposes.
3023 *) Add a CRYPTO_EX_DATA to X509 certificate structure and associated
3027 *) New X509V3_{X509,CRL,REVOKED}_get_d2i() functions. These will search
3028 for, obtain and decode and extension and obtain its critical flag.
3029 This allows all the necessary extension code to be handled in a
3030 single function call.
3033 *) RC4 tune-up featuring 30-40% performance improvement on most RISC
3034 platforms. See crypto/rc4/rc4_enc.c for further details.
3037 *) New -noout option to asn1parse. This causes no output to be produced
3038 its main use is when combined with -strparse and -out to extract data
3039 from a file (which may not be in ASN.1 format).
3042 *) Fix for pkcs12 program. It was hashing an invalid certificate pointer
3043 when producing the local key id.
3044 [Richard Levitte <levitte@stacken.kth.se>]
3046 *) New option -dhparam in s_server. This allows a DH parameter file to be
3047 stated explicitly. If it is not stated then it tries the first server
3048 certificate file. The previous behaviour hard coded the filename
3052 *) Add -pubin and -pubout options to the rsa and dsa commands. These allow
3053 a public key to be input or output. For example:
3054 openssl rsa -in key.pem -pubout -out pubkey.pem
3055 Also added necessary DSA public key functions to handle this.
3058 *) Fix so PKCS7_dataVerify() doesn't crash if no certificates are contained
3059 in the message. This was handled by allowing
3060 X509_find_by_issuer_and_serial() to tolerate a NULL passed to it.
3061 [Steve Henson, reported by Sampo Kellomaki <sampo@mail.neuronio.pt>]
3063 *) Fix for bug in d2i_ASN1_bytes(): other ASN1 functions add an extra null
3064 to the end of the strings whereas this didn't. This would cause problems
3065 if strings read with d2i_ASN1_bytes() were later modified.
3066 [Steve Henson, reported by Arne Ansper <arne@ats.cyber.ee>]
3068 *) Fix for base64 decode bug. When a base64 bio reads only one line of
3069 data and it contains EOF it will end up returning an error. This is
3070 caused by input 46 bytes long. The cause is due to the way base64
3071 BIOs find the start of base64 encoded data. They do this by trying a
3072 trial decode on each line until they find one that works. When they
3073 do a flag is set and it starts again knowing it can pass all the
3074 data directly through the decoder. Unfortunately it doesn't reset
3075 the context it uses. This means that if EOF is reached an attempt
3076 is made to pass two EOFs through the context and this causes the
3077 resulting error. This can also cause other problems as well. As is
3078 usual with these problems it takes *ages* to find and the fix is
3079 trivial: move one line.
3080 [Steve Henson, reported by ian@uns.ns.ac.yu (Ivan Nejgebauer) ]
3082 *) Ugly workaround to get s_client and s_server working under Windows. The
3083 old code wouldn't work because it needed to select() on sockets and the
3084 tty (for keypresses and to see if data could be written). Win32 only
3085 supports select() on sockets so we select() with a 1s timeout on the
3086 sockets and then see if any characters are waiting to be read, if none
3087 are present then we retry, we also assume we can always write data to
3088 the tty. This isn't nice because the code then blocks until we've
3089 received a complete line of data and it is effectively polling the
3090 keyboard at 1s intervals: however it's quite a bit better than not
3091 working at all :-) A dedicated Windows application might handle this
3092 with an event loop for example.
3095 *) Enhance RSA_METHOD structure. Now there are two extra methods, rsa_sign
3096 and rsa_verify. When the RSA_FLAGS_SIGN_VER option is set these functions
3097 will be called when RSA_sign() and RSA_verify() are used. This is useful
3098 if rsa_pub_dec() and rsa_priv_enc() equivalents are not available.
3099 For this to work properly RSA_public_decrypt() and RSA_private_encrypt()
3100 should *not* be used: RSA_sign() and RSA_verify() must be used instead.
3101 This necessitated the support of an extra signature type NID_md5_sha1
3102 for SSL signatures and modifications to the SSL library to use it instead
3103 of calling RSA_public_decrypt() and RSA_private_encrypt().
3106 *) Add new -verify -CAfile and -CApath options to the crl program, these
3107 will lookup a CRL issuers certificate and verify the signature in a
3108 similar way to the verify program. Tidy up the crl program so it
3109 no longer accesses structures directly. Make the ASN1 CRL parsing a bit
3110 less strict. It will now permit CRL extensions even if it is not
3111 a V2 CRL: this will allow it to tolerate some broken CRLs.
3114 *) Initialize all non-automatic variables each time one of the openssl
3115 sub-programs is started (this is necessary as they may be started
3116 multiple times from the "OpenSSL>" prompt).
3117 [Lennart Bang, Bodo Moeller]
3119 *) Preliminary compilation option RSA_NULL which disables RSA crypto without
3120 removing all other RSA functionality (this is what NO_RSA does). This
3121 is so (for example) those in the US can disable those operations covered
3122 by the RSA patent while allowing storage and parsing of RSA keys and RSA
3126 *) Non-copying interface to BIO pairs.
3127 (still largely untested)
3130 *) New function ANS1_tag2str() to convert an ASN1 tag to a descriptive
3131 ASCII string. This was handled independently in various places before.
3134 *) New functions UTF8_getc() and UTF8_putc() that parse and generate
3135 UTF8 strings a character at a time.
3138 *) Use client_version from client hello to select the protocol
3139 (s23_srvr.c) and for RSA client key exchange verification
3140 (s3_srvr.c), as required by the SSL 3.0/TLS 1.0 specifications.
3143 *) Add various utility functions to handle SPKACs, these were previously
3144 handled by poking round in the structure internals. Added new function
3145 NETSCAPE_SPKI_print() to print out SPKAC and a new utility 'spkac' to
3146 print, verify and generate SPKACs. Based on an original idea from
3147 Massimiliano Pala <madwolf@comune.modena.it> but extensively modified.
3150 *) RIPEMD160 is operational on all platforms and is back in 'make test'.
3153 *) Allow the config file extension section to be overwritten on the
3154 command line. Based on an original idea from Massimiliano Pala
3155 <madwolf@comune.modena.it>. The new option is called -extensions
3156 and can be applied to ca, req and x509. Also -reqexts to override
3157 the request extensions in req and -crlexts to override the crl extensions
3161 *) Add new feature to the SPKAC handling in ca. Now you can include
3162 the same field multiple times by preceding it by "XXXX." for example:
3165 this is the same syntax as used in the req config file.
3168 *) Allow certificate extensions to be added to certificate requests. These
3169 are specified in a 'req_extensions' option of the req section of the
3170 config file. They can be printed out with the -text option to req but
3171 are otherwise ignored at present.
3174 *) Fix a horrible bug in enc_read() in crypto/evp/bio_enc.c: if the first
3175 data read consists of only the final block it would not decrypted because
3176 EVP_CipherUpdate() would correctly report zero bytes had been decrypted.
3177 A misplaced 'break' also meant the decrypted final block might not be
3178 copied until the next read.
3181 *) Initial support for DH_METHOD. Again based on RSA_METHOD. Also added
3182 a few extra parameters to the DH structure: these will be useful if
3183 for example we want the value of 'q' or implement X9.42 DH.
3186 *) Initial support for DSA_METHOD. This is based on the RSA_METHOD and
3187 provides hooks that allow the default DSA functions or functions on a
3188 "per key" basis to be replaced. This allows hardware acceleration and
3189 hardware key storage to be handled without major modification to the
3190 library. Also added low level modexp hooks and CRYPTO_EX structure and
3191 associated functions.
3194 *) Add a new flag to memory BIOs, BIO_FLAG_MEM_RDONLY. This marks the BIO
3195 as "read only": it can't be written to and the buffer it points to will
3196 not be freed. Reading from a read only BIO is much more efficient than
3197 a normal memory BIO. This was added because there are several times when
3198 an area of memory needs to be read from a BIO. The previous method was
3199 to create a memory BIO and write the data to it, this results in two
3200 copies of the data and an O(n^2) reading algorithm. There is a new
3201 function BIO_new_mem_buf() which creates a read only memory BIO from
3202 an area of memory. Also modified the PKCS#7 routines to use read only
3206 *) Bugfix: ssl23_get_client_hello did not work properly when called in
3207 state SSL23_ST_SR_CLNT_HELLO_B, i.e. when the first 7 bytes of
3208 a SSLv2-compatible client hello for SSLv3 or TLSv1 could be read,
3209 but a retry condition occured while trying to read the rest.
3212 *) The PKCS7_ENC_CONTENT_new() function was setting the content type as
3213 NID_pkcs7_encrypted by default: this was wrong since this should almost
3214 always be NID_pkcs7_data. Also modified the PKCS7_set_type() to handle
3215 the encrypted data type: this is a more sensible place to put it and it
3216 allows the PKCS#12 code to be tidied up that duplicated this
3220 *) Changed obj_dat.pl script so it takes its input and output files on
3221 the command line. This should avoid shell escape redirection problems
3225 *) Initial support for certificate extension requests, these are included
3226 in things like Xenroll certificate requests. Included functions to allow
3227 extensions to be obtained and added.
3230 *) -crlf option to s_client and s_server for sending newlines as
3231 CRLF (as required by many protocols).
3234 Changes between 0.9.3a and 0.9.4 [09 Aug 1999]
3236 *) Install libRSAglue.a when OpenSSL is built with RSAref.
3237 [Ralf S. Engelschall]
3239 *) A few more ``#ifndef NO_FP_API / #endif'' pairs for consistency.
3240 [Andrija Antonijevic <TheAntony2@bigfoot.com>]
3242 *) Fix -startdate and -enddate (which was missing) arguments to 'ca'
3246 *) New function DSA_dup_DH, which duplicates DSA parameters/keys as
3247 DH parameters/keys (q is lost during that conversion, but the resulting
3248 DH parameters contain its length).
3250 For 1024-bit p, DSA_generate_parameters followed by DSA_dup_DH is
3251 much faster than DH_generate_parameters (which creates parameters
3252 where p = 2*q + 1), and also the smaller q makes DH computations
3253 much more efficient (160-bit exponentiation instead of 1024-bit
3254 exponentiation); so this provides a convenient way to support DHE
3255 ciphersuites in SSL/TLS servers (see ssl/ssltest.c). It is of
3256 utter importance to use
3257 SSL_CTX_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
3259 SSL_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
3260 when such DH parameters are used, because otherwise small subgroup
3261 attacks may become possible!
3264 *) Avoid memory leak in i2d_DHparams.
3267 *) Allow the -k option to be used more than once in the enc program:
3268 this allows the same encrypted message to be read by multiple recipients.
3271 *) New function OBJ_obj2txt(buf, buf_len, a, no_name), this converts
3272 an ASN1_OBJECT to a text string. If the "no_name" parameter is set then
3273 it will always use the numerical form of the OID, even if it has a short
3277 *) Added an extra RSA flag: RSA_FLAG_EXT_PKEY. Previously the rsa_mod_exp
3278 method only got called if p,q,dmp1,dmq1,iqmp components were present,
3279 otherwise bn_mod_exp was called. In the case of hardware keys for example
3280 no private key components need be present and it might store extra data
3281 in the RSA structure, which cannot be accessed from bn_mod_exp.
3282 By setting RSA_FLAG_EXT_PKEY rsa_mod_exp will always be called for
3283 private key operations.
3286 *) Added support for SPARC Linux.
3289 *) pem_password_cb function type incompatibly changed from
3290 typedef int pem_password_cb(char *buf, int size, int rwflag);
3292 ....(char *buf, int size, int rwflag, void *userdata);
3293 so that applications can pass data to their callbacks:
3294 The PEM[_ASN1]_{read,write}... functions and macros now take an
3295 additional void * argument, which is just handed through whenever
3296 the password callback is called.
3297 [Damien Miller <dmiller@ilogic.com.au>; tiny changes by Bodo Moeller]
3299 New function SSL_CTX_set_default_passwd_cb_userdata.
3301 Compatibility note: As many C implementations push function arguments
3302 onto the stack in reverse order, the new library version is likely to
3303 interoperate with programs that have been compiled with the old
3304 pem_password_cb definition (PEM_whatever takes some data that
3305 happens to be on the stack as its last argument, and the callback
3306 just ignores this garbage); but there is no guarantee whatsoever that
3309 *) The -DPLATFORM="\"$(PLATFORM)\"" definition and the similar -DCFLAGS=...
3310 (both in crypto/Makefile.ssl for use by crypto/cversion.c) caused
3311 problems not only on Windows, but also on some Unix platforms.
3312 To avoid problematic command lines, these definitions are now in an
3313 auto-generated file crypto/buildinf.h (created by crypto/Makefile.ssl
3314 for standard "make" builds, by util/mk1mf.pl for "mk1mf" builds).
3317 *) MIPS III/IV assembler module is reimplemented.
3320 *) More DES library cleanups: remove references to srand/rand and
3321 delete an unused file.
3324 *) Add support for the the free Netwide assembler (NASM) under Win32,
3325 since not many people have MASM (ml) and it can be hard to obtain.
3326 This is currently experimental but it seems to work OK and pass all
3327 the tests. Check out INSTALL.W32 for info.
3330 *) Fix memory leaks in s3_clnt.c: All non-anonymous SSL3/TLS1 connections
3331 without temporary keys kept an extra copy of the server key,
3332 and connections with temporary keys did not free everything in case
3336 *) New function RSA_check_key and new openssl rsa option -check
3337 for verifying the consistency of RSA keys.
3338 [Ulf Moeller, Bodo Moeller]
3340 *) Various changes to make Win32 compile work:
3341 1. Casts to avoid "loss of data" warnings in p5_crpt2.c
3342 2. Change unsigned int to int in b_dump.c to avoid "signed/unsigned
3343 comparison" warnings.
3344 3. Add sk_<TYPE>_sort to DEF file generator and do make update.
3347 *) Add a debugging option to PKCS#5 v2 key generation function: when
3348 you #define DEBUG_PKCS5V2 passwords, salts, iteration counts and
3349 derived keys are printed to stderr.
3352 *) Copy the flags in ASN1_STRING_dup().
3353 [Roman E. Pavlov <pre@mo.msk.ru>]
3355 *) The x509 application mishandled signing requests containing DSA
3356 keys when the signing key was also DSA and the parameters didn't match.
3358 It was supposed to omit the parameters when they matched the signing key:
3359 the verifying software was then supposed to automatically use the CA's
3360 parameters if they were absent from the end user certificate.
3362 Omitting parameters is no longer recommended. The test was also
3363 the wrong way round! This was probably due to unusual behaviour in
3364 EVP_cmp_parameters() which returns 1 if the parameters match.
3365 This meant that parameters were omitted when they *didn't* match and
3366 the certificate was useless. Certificates signed with 'ca' didn't have
3368 [Steve Henson, reported by Doug Erickson <Doug.Erickson@Part.NET>]
3370 *) Memory leak checking (-DCRYPTO_MDEBUG) had some problems.
3371 The interface is as follows:
3372 Applications can use
3373 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON) aka MemCheck_start(),
3374 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_OFF) aka MemCheck_stop();
3375 "off" is now the default.
3376 The library internally uses
3377 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_DISABLE) aka MemCheck_off(),
3378 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ENABLE) aka MemCheck_on()
3379 to disable memory-checking temporarily.
3381 Some inconsistent states that previously were possible (and were
3382 even the default) are now avoided.
3384 -DCRYPTO_MDEBUG_TIME is new and additionally stores the current time
3385 with each memory chunk allocated; this is occasionally more helpful
3386 than just having a counter.
3388 -DCRYPTO_MDEBUG_THREAD is also new and adds the thread ID.
3390 -DCRYPTO_MDEBUG_ALL enables all of the above, plus any future
3394 *) Introduce "mode" for SSL structures (with defaults in SSL_CTX),
3395 which largely parallels "options", but is for changing API behaviour,
3396 whereas "options" are about protocol behaviour.
3397 Initial "mode" flags are:
3399 SSL_MODE_ENABLE_PARTIAL_WRITE Allow SSL_write to report success when
3400 a single record has been written.
3401 SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER Don't insist that SSL_write
3402 retries use the same buffer location.
3403 (But all of the contents must be
3407 *) Bugfix: SSL_set_options ignored its parameter, only SSL_CTX_set_options
3410 *) Fix problems with no-hmac etc.
3411 [Ulf Möller, pointed out by Brian Wellington <bwelling@tislabs.com>]
3413 *) New functions RSA_get_default_method(), RSA_set_method() and
3414 RSA_get_method(). These allows replacement of RSA_METHODs without having
3415 to mess around with the internals of an RSA structure.
3418 *) Fix memory leaks in DSA_do_sign and DSA_is_prime.
3419 Also really enable memory leak checks in openssl.c and in some
3421 [Chad C. Mulligan, Bodo Moeller]
3423 *) Fix a bug in d2i_ASN1_INTEGER() and i2d_ASN1_INTEGER() which can mess
3424 up the length of negative integers. This has now been simplified to just
3425 store the length when it is first determined and use it later, rather
3426 than trying to keep track of where data is copied and updating it to
3428 [Steve Henson, reported by Brien Wheeler
3429 <bwheeler@authentica-security.com>]
3431 *) Add a new function PKCS7_signatureVerify. This allows the verification
3432 of a PKCS#7 signature but with the signing certificate passed to the
3433 function itself. This contrasts with PKCS7_dataVerify which assumes the
3434 certificate is present in the PKCS#7 structure. This isn't always the
3435 case: certificates can be omitted from a PKCS#7 structure and be
3436 distributed by "out of band" means (such as a certificate database).
3439 *) Complete the PEM_* macros with DECLARE_PEM versions to replace the
3440 function prototypes in pem.h, also change util/mkdef.pl to add the
3441 necessary function names.
3444 *) mk1mf.pl (used by Windows builds) did not properly read the
3445 options set by Configure in the top level Makefile, and Configure
3446 was not even able to write more than one option correctly.
3447 Fixed, now "no-idea no-rc5 -DCRYPTO_MDEBUG" etc. works as intended.
3450 *) New functions CONF_load_bio() and CONF_load_fp() to allow a config
3451 file to be loaded from a BIO or FILE pointer. The BIO version will
3452 for example allow memory BIOs to contain config info.
3455 *) New function "CRYPTO_num_locks" that returns CRYPTO_NUM_LOCKS.
3456 Whoever hopes to achieve shared-library compatibility across versions
3457 must use this, not the compile-time macro.
3458 (Exercise 0.9.4: Which is the minimum library version required by
3460 Note: All this applies only to multi-threaded programs, others don't
3464 *) Add missing case to s3_clnt.c state machine -- one of the new SSL tests
3465 through a BIO pair triggered the default case, i.e.
3466 SSLerr(...,SSL_R_UNKNOWN_STATE).
3469 *) New "BIO pair" concept (crypto/bio/bss_bio.c) so that applications
3470 can use the SSL library even if none of the specific BIOs is
3474 *) Fix a bug in i2d_DSAPublicKey() which meant it returned the wrong value
3475 for the encoded length.
3476 [Jeon KyoungHo <khjeon@sds.samsung.co.kr>]
3478 *) Add initial documentation of the X509V3 functions.
3481 *) Add a new pair of functions PEM_write_PKCS8PrivateKey() and
3482 PEM_write_bio_PKCS8PrivateKey() that are equivalent to
3483 PEM_write_PrivateKey() and PEM_write_bio_PrivateKey() but use the more
3484 secure PKCS#8 private key format with a high iteration count.
3487 *) Fix determination of Perl interpreter: A perl or perl5
3488 _directory_ in $PATH was also accepted as the interpreter.
3489 [Ralf S. Engelschall]
3491 *) Fix demos/sign/sign.c: well there wasn't anything strictly speaking
3492 wrong with it but it was very old and did things like calling
3493 PEM_ASN1_read() directly and used MD5 for the hash not to mention some
3497 *) Fix demos/selfsign.c: it used obsolete and deleted functions, changed
3498 to use the new extension code.
3501 *) Implement the PEM_read/PEM_write functions in crypto/pem/pem_all.c
3502 with macros. This should make it easier to change their form, add extra
3503 arguments etc. Fix a few PEM prototypes which didn't have cipher as a
3507 *) Add to configuration table a new entry that can specify an alternative
3508 name for unistd.h (for pre-POSIX systems); we need this for NeXTstep,
3509 according to Mark Crispin <MRC@Panda.COM>.
3513 *) DES CBC did not update the IV. Weird.
3516 des_cbc_encrypt does not update the IV, but des_ncbc_encrypt does.
3517 Changing the behaviour of the former might break existing programs --
3518 where IV updating is needed, des_ncbc_encrypt can be used.
3521 *) When bntest is run from "make test" it drives bc to check its
3522 calculations, as well as internally checking them. If an internal check
3523 fails, it needs to cause bc to give a non-zero result or make test carries
3524 on without noticing the failure. Fixed.
3527 *) DES library cleanups.
3530 *) Add support for PKCS#5 v2.0 PBE algorithms. This will permit PKCS#8 to be
3531 used with any cipher unlike PKCS#5 v1.5 which can at most handle 64 bit
3532 ciphers. NOTE: although the key derivation function has been verified
3533 against some published test vectors it has not been extensively tested
3534 yet. Added a -v2 "cipher" option to pkcs8 application to allow the use
3538 *) Instead of "mkdir -p", which is not fully portable, use new
3539 Perl script "util/mkdir-p.pl".
3542 *) Rewrite the way password based encryption (PBE) is handled. It used to
3543 assume that the ASN1 AlgorithmIdentifier parameter was a PBEParameter
3544 structure. This was true for the PKCS#5 v1.5 and PKCS#12 PBE algorithms
3545 but doesn't apply to PKCS#5 v2.0 where it can be something else. Now
3546 the 'parameter' field of the AlgorithmIdentifier is passed to the
3547 underlying key generation function so it must do its own ASN1 parsing.
3548 This has also changed the EVP_PBE_CipherInit() function which now has a
3549 'parameter' argument instead of literal salt and iteration count values
3550 and the function EVP_PBE_ALGOR_CipherInit() has been deleted.
3553 *) Support for PKCS#5 v1.5 compatible password based encryption algorithms
3554 and PKCS#8 functionality. New 'pkcs8' application linked to openssl.
3555 Needed to change the PEM_STRING_EVP_PKEY value which was just "PRIVATE
3556 KEY" because this clashed with PKCS#8 unencrypted string. Since this
3557 value was just used as a "magic string" and not used directly its
3558 value doesn't matter.
3561 *) Introduce some semblance of const correctness to BN. Shame C doesn't
3565 *) "linux-sparc64" configuration (ultrapenguin).
3566 [Ray Miller <ray.miller@oucs.ox.ac.uk>]
3567 "linux-sparc" configuration.
3568 [Christian Forster <fo@hawo.stw.uni-erlangen.de>]
3570 *) config now generates no-xxx options for missing ciphers.
3573 *) Support the EBCDIC character set (work in progress).
3574 File ebcdic.c not yet included because it has a different license.
3575 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
3577 *) Support BS2000/OSD-POSIX.
3578 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
3580 *) Make callbacks for key generation use void * instead of char *.
3583 *) Make S/MIME samples compile (not yet tested).
3586 *) Additional typesafe stacks.
3589 *) New configuration variants "bsdi-elf-gcc" (BSD/OS 4.x).
3593 Changes between 0.9.3 and 0.9.3a [29 May 1999]
3595 *) New configuration variant "sco5-gcc".
3597 *) Updated some demos.
3598 [Sean O Riordain, Wade Scholine]
3600 *) Add missing BIO_free at exit of pkcs12 application.
3603 *) Fix memory leak in conf.c.
3606 *) Updates for Win32 to assembler version of MD5.
3609 *) Set #! path to perl in apps/der_chop to where we found it
3610 instead of using a fixed path.
3613 *) SHA library changes for irix64-mips4-cc.
3616 *) Improvements for VMS support.
3620 Changes between 0.9.2b and 0.9.3 [24 May 1999]
3622 *) Bignum library bug fix. IRIX 6 passes "make test" now!
3623 This also avoids the problems with SC4.2 and unpatched SC5.
3624 [Andy Polyakov <appro@fy.chalmers.se>]
3626 *) New functions sk_num, sk_value and sk_set to replace the previous macros.
3627 These are required because of the typesafe stack would otherwise break
3628 existing code. If old code used a structure member which used to be STACK
3629 and is now STACK_OF (for example cert in a PKCS7_SIGNED structure) with
3630 sk_num or sk_value it would produce an error because the num, data members
3631 are not present in STACK_OF. Now it just produces a warning. sk_set
3632 replaces the old method of assigning a value to sk_value
3633 (e.g. sk_value(x, i) = y) which the library used in a few cases. Any code
3634 that does this will no longer work (and should use sk_set instead) but
3635 this could be regarded as a "questionable" behaviour anyway.
3638 *) Fix most of the other PKCS#7 bugs. The "experimental" code can now
3639 correctly handle encrypted S/MIME data.
3642 *) Change type of various DES function arguments from des_cblock
3643 (which means, in function argument declarations, pointer to char)
3644 to des_cblock * (meaning pointer to array with 8 char elements),
3645 which allows the compiler to do more typechecking; it was like
3646 that back in SSLeay, but with lots of ugly casts.
3648 Introduce new type const_des_cblock.
3651 *) Reorganise the PKCS#7 library and get rid of some of the more obvious
3652 problems: find RecipientInfo structure that matches recipient certificate
3653 and initialise the ASN1 structures properly based on passed cipher.
3656 *) Belatedly make the BN tests actually check the results.
3659 *) Fix the encoding and decoding of negative ASN1 INTEGERS and conversion
3660 to and from BNs: it was completely broken. New compilation option
3661 NEG_PUBKEY_BUG to allow for some broken certificates that encode public
3662 key elements as negative integers.
3665 *) Reorganize and speed up MD5.
3666 [Andy Polyakov <appro@fy.chalmers.se>]
3669 [Richard Levitte <richard@levitte.org>]
3671 *) New option -out to asn1parse to allow the parsed structure to be
3672 output to a file. This is most useful when combined with the -strparse
3673 option to examine the output of things like OCTET STRINGS.
3676 *) Make SSL library a little more fool-proof by not requiring any longer
3677 that SSL_set_{accept,connect}_state be called before
3678 SSL_{accept,connect} may be used (SSL_set_..._state is omitted
3679 in many applications because usually everything *appeared* to work as
3680 intended anyway -- now it really works as intended).
3683 *) Move openssl.cnf out of lib/.
3686 *) Fix various things to let OpenSSL even pass ``egcc -pipe -O2 -Wall
3687 -Wshadow -Wpointer-arith -Wcast-align -Wmissing-prototypes
3688 -Wmissing-declarations -Wnested-externs -Winline'' with EGCS 1.1.2+
3689 [Ralf S. Engelschall]
3691 *) Various fixes to the EVP and PKCS#7 code. It may now be able to
3692 handle PKCS#7 enveloped data properly.
3693 [Sebastian Akerman <sak@parallelconsulting.com>, modified by Steve]
3695 *) Create a duplicate of the SSL_CTX's CERT in SSL_new instead of
3696 copying pointers. The cert_st handling is changed by this in
3697 various ways (and thus what used to be known as ctx->default_cert
3698 is now called ctx->cert, since we don't resort to s->ctx->[default_]cert
3699 any longer when s->cert does not give us what we need).
3700 ssl_cert_instantiate becomes obsolete by this change.
3701 As soon as we've got the new code right (possibly it already is?),
3702 we have solved a couple of bugs of the earlier code where s->cert
3703 was used as if it could not have been shared with other SSL structures.
3705 Note that using the SSL API in certain dirty ways now will result
3706 in different behaviour than observed with earlier library versions:
3707 Changing settings for an SSL_CTX *ctx after having done s = SSL_new(ctx)
3708 does not influence s as it used to.
3710 In order to clean up things more thoroughly, inside SSL_SESSION
3711 we don't use CERT any longer, but a new structure SESS_CERT
3712 that holds per-session data (if available); currently, this is
3713 the peer's certificate chain and, for clients, the server's certificate
3714 and temporary key. CERT holds only those values that can have
3715 meaningful defaults in an SSL_CTX.
3718 *) New function X509V3_EXT_i2d() to create an X509_EXTENSION structure
3719 from the internal representation. Various PKCS#7 fixes: remove some
3720 evil casts and set the enc_dig_alg field properly based on the signing
3724 *) Allow PKCS#12 password to be set from the command line or the
3725 environment. Let 'ca' get its config file name from the environment
3726 variables "OPENSSL_CONF" or "SSLEAY_CONF" (for consistency with 'req'
3730 *) Allow certificate policies extension to use an IA5STRING for the
3731 organization field. This is contrary to the PKIX definition but
3732 VeriSign uses it and IE5 only recognises this form. Document 'x509'
3736 *) Add PEDANTIC compiler flag to allow compilation with gcc -pedantic,
3737 without disallowing inline assembler and the like for non-pedantic builds.
3740 *) Support Borland C++ builder.
3741 [Janez Jere <jj@void.si>, modified by Ulf Möller]
3746 *) SHA-1 cleanups and performance enhancements.
3747 [Andy Polyakov <appro@fy.chalmers.se>]
3749 *) Sparc v8plus assembler for the bignum library.
3750 [Andy Polyakov <appro@fy.chalmers.se>]
3752 *) Accept any -xxx and +xxx compiler options in Configure.
3755 *) Update HPUX configuration.
3758 *) Add missing sk_<type>_unshift() function to safestack.h
3759 [Ralf S. Engelschall]
3761 *) New function SSL_CTX_use_certificate_chain_file that sets the
3762 "extra_cert"s in addition to the certificate. (This makes sense
3763 only for "PEM" format files, as chains as a whole are not
3767 *) Support verify_depth from the SSL API.
3768 x509_vfy.c had what can be considered an off-by-one-error:
3769 Its depth (which was not part of the external interface)
3770 was actually counting the number of certificates in a chain;
3771 now it really counts the depth.
3774 *) Bugfix in crypto/x509/x509_cmp.c: The SSLerr macro was used
3775 instead of X509err, which often resulted in confusing error
3776 messages since the error codes are not globally unique
3777 (e.g. an alleged error in ssl3_accept when a certificate
3778 didn't match the private key).
3780 *) New function SSL_CTX_set_session_id_context that allows to set a default
3781 value (so that you don't need SSL_set_session_id_context for each
3782 connection using the SSL_CTX).
3785 *) OAEP decoding bug fix.
3788 *) Support INSTALL_PREFIX for package builders, as proposed by
3792 *) New Configure options "threads" and "no-threads". For systems
3793 where the proper compiler options are known (currently Solaris
3794 and Linux), "threads" is the default.
3797 *) New script util/mklink.pl as a faster substitute for util/mklink.sh.
3800 *) Install various scripts to $(OPENSSLDIR)/misc, not to
3801 $(INSTALLTOP)/bin -- they shouldn't clutter directories
3802 such as /usr/local/bin.
3805 *) "make linux-shared" to build shared libraries.
3806 [Niels Poppe <niels@netbox.org>]
3808 *) New Configure option no-<cipher> (rsa, idea, rc5, ...).
3811 *) Add the PKCS#12 API documentation to openssl.txt. Preliminary support for
3812 extension adding in x509 utility.
3815 *) Remove NOPROTO sections and error code comments.
3818 *) Partial rewrite of the DEF file generator to now parse the ANSI
3822 *) New Configure options --prefix=DIR and --openssldir=DIR.
3825 *) Complete rewrite of the error code script(s). It is all now handled
3826 by one script at the top level which handles error code gathering,
3827 header rewriting and C source file generation. It should be much better
3828 than the old method: it now uses a modified version of Ulf's parser to
3829 read the ANSI prototypes in all header files (thus the old K&R definitions
3830 aren't needed for error creation any more) and do a better job of
3831 translating function codes into names. The old 'ASN1 error code imbedded
3832 in a comment' is no longer necessary and it doesn't use .err files which
3833 have now been deleted. Also the error code call doesn't have to appear all
3834 on one line (which resulted in some large lines...).
3837 *) Change #include filenames from <foo.h> to <openssl/foo.h>.
3840 *) Change behaviour of ssl2_read when facing length-0 packets: Don't return
3841 0 (which usually indicates a closed connection), but continue reading.
3844 *) Fix some race conditions.
3847 *) Add support for CRL distribution points extension. Add Certificate
3848 Policies and CRL distribution points documentation.
3851 *) Move the autogenerated header file parts to crypto/opensslconf.h.
3854 *) Fix new 56-bit DES export ciphersuites: they were using 7 bytes instead of
3855 8 of keying material. Merlin has also confirmed interop with this fix
3856 between OpenSSL and Baltimore C/SSL 2.0 and J/SSL 2.0.
3857 [Merlin Hughes <merlin@baltimore.ie>]
3859 *) Fix lots of warnings.
3860 [Richard Levitte <levitte@stacken.kth.se>]
3862 *) In add_cert_dir() in crypto/x509/by_dir.c, break out of the loop if
3863 the directory spec didn't end with a LIST_SEPARATOR_CHAR.
3864 [Richard Levitte <levitte@stacken.kth.se>]
3866 *) Fix problems with sizeof(long) == 8.
3867 [Andy Polyakov <appro@fy.chalmers.se>]
3869 *) Change functions to ANSI C.
3872 *) Fix typos in error codes.
3873 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>, Ulf Möller]
3875 *) Remove defunct assembler files from Configure.
3878 *) SPARC v8 assembler BIGNUM implementation.
3879 [Andy Polyakov <appro@fy.chalmers.se>]
3881 *) Support for Certificate Policies extension: both print and set.
3882 Various additions to support the r2i method this uses.
3885 *) A lot of constification, and fix a bug in X509_NAME_oneline() that could
3886 return a const string when you are expecting an allocated buffer.
3889 *) Add support for ASN1 types UTF8String and VISIBLESTRING, also the CHOICE
3890 types DirectoryString and DisplayText.
3893 *) Add code to allow r2i extensions to access the configuration database,
3894 add an LHASH database driver and add several ctx helper functions.
3897 *) Fix an evil bug in bn_expand2() which caused various BN functions to
3898 fail when they extended the size of a BIGNUM.
3901 *) Various utility functions to handle SXNet extension. Modify mkdef.pl to
3902 support typesafe stack.
3905 *) Fix typo in SSL_[gs]et_options().
3906 [Nils Frostberg <nils@medcom.se>]
3908 *) Delete various functions and files that belonged to the (now obsolete)
3909 old X509V3 handling code.
3912 *) New Configure option "rsaref".
3915 *) Don't auto-generate pem.h.
3918 *) Introduce type-safe ASN.1 SETs.
3921 *) Convert various additional casted stacks to type-safe STACK_OF() variants.
3922 [Ben Laurie, Ralf S. Engelschall, Steve Henson]
3924 *) Introduce type-safe STACKs. This will almost certainly break lots of code
3925 that links with OpenSSL (well at least cause lots of warnings), but fear
3926 not: the conversion is trivial, and it eliminates loads of evil casts. A
3927 few STACKed things have been converted already. Feel free to convert more.
3928 In the fullness of time, I'll do away with the STACK type altogether.
3931 *) Add `openssl ca -revoke <certfile>' facility which revokes a certificate
3932 specified in <certfile> by updating the entry in the index.txt file.
3933 This way one no longer has to edit the index.txt file manually for
3934 revoking a certificate. The -revoke option does the gory details now.
3935 [Massimiliano Pala <madwolf@openca.org>, Ralf S. Engelschall]
3937 *) Fix `openssl crl -noout -text' combination where `-noout' killed the
3938 `-text' option at all and this way the `-noout -text' combination was
3939 inconsistent in `openssl crl' with the friends in `openssl x509|rsa|dsa'.
3940 [Ralf S. Engelschall]
3942 *) Make sure a corresponding plain text error message exists for the
3943 X509_V_ERR_CERT_REVOKED/23 error number which can occur when a
3944 verify callback function determined that a certificate was revoked.
3945 [Ralf S. Engelschall]
3947 *) Bugfix: In test/testenc, don't test "openssl <cipher>" for
3948 ciphers that were excluded, e.g. by -DNO_IDEA. Also, test
3949 all available cipers including rc5, which was forgotten until now.
3950 In order to let the testing shell script know which algorithms
3951 are available, a new (up to now undocumented) command
3952 "openssl list-cipher-commands" is used.
3955 *) Bugfix: s_client occasionally would sleep in select() when
3956 it should have checked SSL_pending() first.
3959 *) New functions DSA_do_sign and DSA_do_verify to provide access to
3960 the raw DSA values prior to ASN.1 encoding.
3963 *) Tweaks to Configure
3964 [Niels Poppe <niels@netbox.org>]
3966 *) Add support for PKCS#5 v2.0 ASN1 PBES2 structures. No other support,
3970 *) New variables $(RANLIB) and $(PERL) in the Makefiles.
3973 *) New config option to avoid instructions that are illegal on the 80386.
3974 The default code is faster, but requires at least a 486.
3977 *) Got rid of old SSL2_CLIENT_VERSION (inconsistently used) and
3978 SSL2_SERVER_VERSION (not used at all) macros, which are now the
3979 same as SSL2_VERSION anyway.
3982 *) New "-showcerts" option for s_client.
3985 *) Still more PKCS#12 integration. Add pkcs12 application to openssl
3986 application. Various cleanups and fixes.
3989 *) More PKCS#12 integration. Add new pkcs12 directory with Makefile.ssl and
3990 modify error routines to work internally. Add error codes and PBE init
3991 to library startup routines.
3994 *) Further PKCS#12 integration. Added password based encryption, PKCS#8 and
3995 packing functions to asn1 and evp. Changed function names and error
3996 codes along the way.
3999 *) PKCS12 integration: and so it begins... First of several patches to
4000 slowly integrate PKCS#12 functionality into OpenSSL. Add PKCS#12
4001 objects to objects.h
4004 *) Add a new 'indent' option to some X509V3 extension code. Initial ASN1
4005 and display support for Thawte strong extranet extension.
4008 *) Add LinuxPPC support.
4009 [Jeff Dubrule <igor@pobox.org>]
4011 *) Get rid of redundant BN file bn_mulw.c, and rename bn_div64 to
4012 bn_div_words in alpha.s.
4013 [Hannes Reinecke <H.Reinecke@hw.ac.uk> and Ben Laurie]
4015 *) Make sure the RSA OAEP test is skipped under -DRSAref because
4016 OAEP isn't supported when OpenSSL is built with RSAref.
4017 [Ulf Moeller <ulf@fitug.de>]
4019 *) Move definitions of IS_SET/IS_SEQUENCE inside crypto/asn1/asn1.h
4020 so they no longer are missing under -DNOPROTO.
4021 [Soren S. Jorvang <soren@t.dk>]
4024 Changes between 0.9.1c and 0.9.2b [22 Mar 1999]
4026 *) Make SSL_get_peer_cert_chain() work in servers. Unfortunately, it still
4027 doesn't work when the session is reused. Coming soon!
4030 *) Fix a security hole, that allows sessions to be reused in the wrong
4031 context thus bypassing client cert protection! All software that uses
4032 client certs and session caches in multiple contexts NEEDS PATCHING to
4033 allow session reuse! A fuller solution is in the works.
4034 [Ben Laurie, problem pointed out by Holger Reif, Bodo Moeller (and ???)]
4036 *) Some more source tree cleanups (removed obsolete files
4037 crypto/bf/asm/bf586.pl, test/test.txt and crypto/sha/asm/f.s; changed
4038 permission on "config" script to be executable) and a fix for the INSTALL
4040 [Ulf Moeller <ulf@fitug.de>]
4042 *) Remove some legacy and erroneous uses of malloc, free instead of
4044 [Lennart Bang <lob@netstream.se>, with minor changes by Steve]
4046 *) Make rsa_oaep_test return non-zero on error.
4047 [Ulf Moeller <ulf@fitug.de>]
4049 *) Add support for native Solaris shared libraries. Configure
4050 solaris-sparc-sc4-pic, make, then run shlib/solaris-sc4.sh. It'd be nice
4051 if someone would make that last step automatic.
4052 [Matthias Loepfe <Matthias.Loepfe@AdNovum.CH>]
4054 *) ctx_size was not built with the right compiler during "make links". Fixed.
4057 *) Change the meaning of 'ALL' in the cipher list. It now means "everything
4058 except NULL ciphers". This means the default cipher list will no longer
4059 enable NULL ciphers. They need to be specifically enabled e.g. with
4060 the string "DEFAULT:eNULL".
4063 *) Fix to RSA private encryption routines: if p < q then it would
4064 occasionally produce an invalid result. This will only happen with
4065 externally generated keys because OpenSSL (and SSLeay) ensure p > q.
4068 *) Be less restrictive and allow also `perl util/perlpath.pl
4069 /path/to/bin/perl' in addition to `perl util/perlpath.pl /path/to/bin',
4070 because this way one can also use an interpreter named `perl5' (which is
4071 usually the name of Perl 5.xxx on platforms where an Perl 4.x is still
4072 installed as `perl').
4073 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
4075 *) Let util/clean-depend.pl work also with older Perl 5.00x versions.
4076 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
4078 *) Fix Makefile.org so CC,CFLAG etc are passed to 'make links' add
4079 advapi32.lib to Win32 build and change the pem test comparision
4080 to fc.exe (thanks to Ulrich Kroener <kroneru@yahoo.com> for the
4081 suggestion). Fix misplaced ASNI prototypes and declarations in evp.h
4082 and crypto/des/ede_cbcm_enc.c.
4085 *) DES quad checksum was broken on big-endian architectures. Fixed.
4088 *) Comment out two functions in bio.h that aren't implemented. Fix up the
4089 Win32 test batch file so it (might) work again. The Win32 test batch file
4090 is horrible: I feel ill....
4093 *) Move various #ifdefs around so NO_SYSLOG, NO_DIRENT etc are now selected
4094 in e_os.h. Audit of header files to check ANSI and non ANSI
4095 sections: 10 functions were absent from non ANSI section and not exported
4096 from Windows DLLs. Fixed up libeay.num for new functions.
4099 *) Make `openssl version' output lines consistent.
4100 [Ralf S. Engelschall]
4102 *) Fix Win32 symbol export lists for BIO functions: Added
4103 BIO_get_ex_new_index, BIO_get_ex_num, BIO_get_ex_data and BIO_set_ex_data
4104 to ms/libeay{16,32}.def.
4105 [Ralf S. Engelschall]
4107 *) Second round of fixing the OpenSSL perl/ stuff. It now at least compiled
4108 fine under Unix and passes some trivial tests I've now added. But the
4109 whole stuff is horribly incomplete, so a README.1ST with a disclaimer was
4110 added to make sure no one expects that this stuff really works in the
4111 OpenSSL 0.9.2 release. Additionally I've started to clean the XS sources
4112 up and fixed a few little bugs and inconsistencies in OpenSSL.{pm,xs} and
4114 [Ralf S. Engelschall]
4116 *) Fix the generation of two part addresses in perl.
4117 [Kenji Miyake <kenji@miyake.org>, integrated by Ben Laurie]
4119 *) Add config entry for Linux on MIPS.
4120 [John Tobey <jtobey@channel1.com>]
4122 *) Make links whenever Configure is run, unless we are on Windoze.
4125 *) Permit extensions to be added to CRLs using crl_section in openssl.cnf.
4126 Currently only issuerAltName and AuthorityKeyIdentifier make any sense
4130 *) Add a useful kludge to allow package maintainers to specify compiler and
4131 other platforms details on the command line without having to patch the
4132 Configure script everytime: One now can use ``perl Configure
4133 <id>:<details>'', i.e. platform ids are allowed to have details appended
4134 to them (seperated by colons). This is treated as there would be a static
4135 pre-configured entry in Configure's %table under key <id> with value
4136 <details> and ``perl Configure <id>'' is called. So, when you want to
4137 perform a quick test-compile under FreeBSD 3.1 with pgcc and without
4138 assembler stuff you can use ``perl Configure "FreeBSD-elf:pgcc:-O6:::"''
4139 now, which overrides the FreeBSD-elf entry on-the-fly.
4140 [Ralf S. Engelschall]
4142 *) Disable new TLS1 ciphersuites by default: they aren't official yet.
4145 *) Allow DSO flags like -fpic, -fPIC, -KPIC etc. to be specified
4146 on the `perl Configure ...' command line. This way one can compile
4147 OpenSSL libraries with Position Independent Code (PIC) which is needed
4148 for linking it into DSOs.
4149 [Ralf S. Engelschall]
4151 *) Remarkably, export ciphers were totally broken and no-one had noticed!
4155 *) Cleaned up the LICENSE document: The official contact for any license
4156 questions now is the OpenSSL core team under openssl-core@openssl.org.
4157 And add a paragraph about the dual-license situation to make sure people
4158 recognize that _BOTH_ the OpenSSL license _AND_ the SSLeay license apply
4159 to the OpenSSL toolkit.
4160 [Ralf S. Engelschall]
4162 *) General source tree makefile cleanups: Made `making xxx in yyy...'
4163 display consistent in the source tree and replaced `/bin/rm' by `rm'.
4164 Additonally cleaned up the `make links' target: Remove unnecessary
4165 semicolons, subsequent redundant removes, inline point.sh into mklink.sh
4166 to speed processing and no longer clutter the display with confusing
4167 stuff. Instead only the actually done links are displayed.
4168 [Ralf S. Engelschall]
4170 *) Permit null encryption ciphersuites, used for authentication only. It used
4171 to be necessary to set the preprocessor define SSL_ALLOW_ENULL to do this.
4172 It is now necessary to set SSL_FORBID_ENULL to prevent the use of null
4176 *) Add a bunch of fixes to the PKCS#7 stuff. It used to sometimes reorder
4177 signed attributes when verifying signatures (this would break them),
4178 the detached data encoding was wrong and public keys obtained using
4179 X509_get_pubkey() weren't freed.
4182 *) Add text documentation for the BUFFER functions. Also added a work around
4183 to a Win95 console bug. This was triggered by the password read stuff: the
4184 last character typed gets carried over to the next fread(). If you were
4185 generating a new cert request using 'req' for example then the last
4186 character of the passphrase would be CR which would then enter the first
4190 *) Added the new `Includes OpenSSL Cryptography Software' button as
4191 doc/openssl_button.{gif,html} which is similar in style to the old SSLeay
4192 button and can be used by applications based on OpenSSL to show the
4193 relationship to the OpenSSL project.
4194 [Ralf S. Engelschall]
4196 *) Remove confusing variables in function signatures in files
4197 ssl/ssl_lib.c and ssl/ssl.h.
4198 [Lennart Bong <lob@kulthea.stacken.kth.se>]
4200 *) Don't install bss_file.c under PREFIX/include/
4201 [Lennart Bong <lob@kulthea.stacken.kth.se>]
4203 *) Get the Win32 compile working again. Modify mkdef.pl so it can handle
4204 functions that return function pointers and has support for NT specific
4205 stuff. Fix mk1mf.pl and VC-32.pl to support NT differences also. Various
4206 #ifdef WIN32 and WINNTs sprinkled about the place and some changes from
4207 unsigned to signed types: this was killing the Win32 compile.
4210 *) Add new certificate file to stack functions,
4211 SSL_add_dir_cert_subjects_to_stack() and
4212 SSL_add_file_cert_subjects_to_stack(). These largely supplant
4213 SSL_load_client_CA_file(), and can be used to add multiple certs easily
4214 to a stack (usually this is then handed to SSL_CTX_set_client_CA_list()).
4215 This means that Apache-SSL and similar packages don't have to mess around
4216 to add as many CAs as they want to the preferred list.
4219 *) Experiment with doxygen documentation. Currently only partially applied to
4221 See http://www.stack.nl/~dimitri/doxygen/index.html, and run doxygen with
4222 openssl.doxy as the configuration file.
4225 *) Get rid of remaining C++-style comments which strict C compilers hate.
4226 [Ralf S. Engelschall, pointed out by Carlos Amengual]
4228 *) Changed BN_RECURSION in bn_mont.c to BN_RECURSION_MONT so it is not
4229 compiled in by default: it has problems with large keys.
4232 *) Add a bunch of SSL_xxx() functions for configuring the temporary RSA and
4233 DH private keys and/or callback functions which directly correspond to
4234 their SSL_CTX_xxx() counterparts but work on a per-connection basis. This
4235 is needed for applications which have to configure certificates on a
4236 per-connection basis (e.g. Apache+mod_ssl) instead of a per-context basis
4238 For the RSA certificate situation is makes no difference, but
4239 for the DSA certificate situation this fixes the "no shared cipher"
4240 problem where the OpenSSL cipher selection procedure failed because the
4241 temporary keys were not overtaken from the context and the API provided
4242 no way to reconfigure them.
4243 The new functions now let applications reconfigure the stuff and they
4244 are in detail: SSL_need_tmp_RSA, SSL_set_tmp_rsa, SSL_set_tmp_dh,
4245 SSL_set_tmp_rsa_callback and SSL_set_tmp_dh_callback. Additionally a new
4246 non-public-API function ssl_cert_instantiate() is used as a helper
4247 function and also to reduce code redundancy inside ssl_rsa.c.
4248 [Ralf S. Engelschall]
4250 *) Move s_server -dcert and -dkey options out of the undocumented feature
4251 area because they are useful for the DSA situation and should be
4252 recognized by the users.
4253 [Ralf S. Engelschall]
4255 *) Fix the cipher decision scheme for export ciphers: the export bits are
4256 *not* within SSL_MKEY_MASK or SSL_AUTH_MASK, they are within
4257 SSL_EXP_MASK. So, the original variable has to be used instead of the
4258 already masked variable.
4259 [Richard Levitte <levitte@stacken.kth.se>]
4261 *) Fix 'port' variable from `int' to `unsigned int' in crypto/bio/b_sock.c
4262 [Richard Levitte <levitte@stacken.kth.se>]
4264 *) Change type of another md_len variable in pk7_doit.c:PKCS7_dataFinal()
4265 from `int' to `unsigned int' because it's a length and initialized by
4266 EVP_DigestFinal() which expects an `unsigned int *'.
4267 [Richard Levitte <levitte@stacken.kth.se>]
4269 *) Don't hard-code path to Perl interpreter on shebang line of Configure
4270 script. Instead use the usual Shell->Perl transition trick.
4271 [Ralf S. Engelschall]
4273 *) Make `openssl x509 -noout -modulus' functional also for DSA certificates
4274 (in addition to RSA certificates) to match the behaviour of `openssl dsa
4275 -noout -modulus' as it's already the case for `openssl rsa -noout
4276 -modulus'. For RSA the -modulus is the real "modulus" while for DSA
4277 currently the public key is printed (a decision which was already done by
4278 `openssl dsa -modulus' in the past) which serves a similar purpose.
4279 Additionally the NO_RSA no longer completely removes the whole -modulus
4280 option; it now only avoids using the RSA stuff. Same applies to NO_DSA
4282 [Ralf S. Engelschall]
4284 *) Add Arne Ansper's reliable BIO - this is an encrypted, block-digested
4285 BIO. See the source (crypto/evp/bio_ok.c) for more info.
4286 [Arne Ansper <arne@ats.cyber.ee>]
4288 *) Dump the old yucky req code that tried (and failed) to allow raw OIDs
4289 to be added. Now both 'req' and 'ca' can use new objects defined in the
4293 *) Add cool BIO that does syslog (or event log on NT).
4294 [Arne Ansper <arne@ats.cyber.ee>, integrated by Ben Laurie]
4296 *) Add support for new TLS ciphersuites, TLS_RSA_EXPORT56_WITH_RC4_56_MD5,
4297 TLS_RSA_EXPORT56_WITH_RC2_CBC_56_MD5 and
4298 TLS_RSA_EXPORT56_WITH_DES_CBC_SHA, as specified in "56-bit Export Cipher
4299 Suites For TLS", draft-ietf-tls-56-bit-ciphersuites-00.txt.
4302 *) Add preliminary config info for new extension code.
4305 *) Make RSA_NO_PADDING really use no padding.
4306 [Ulf Moeller <ulf@fitug.de>]
4308 *) Generate errors when private/public key check is done.
4311 *) Overhaul for 'crl' utility. New function X509_CRL_print. Partial support
4312 for some CRL extensions and new objects added.
4315 *) Really fix the ASN1 IMPLICIT bug this time... Partial support for private
4316 key usage extension and fuller support for authority key id.
4319 *) Add OAEP encryption for the OpenSSL crypto library. OAEP is the improved
4320 padding method for RSA, which is recommended for new applications in PKCS
4321 #1 v2.0 (RFC 2437, October 1998).
4322 OAEP (Optimal Asymmetric Encryption Padding) has better theoretical
4323 foundations than the ad-hoc padding used in PKCS #1 v1.5. It is secure
4324 against Bleichbacher's attack on RSA.
4325 [Ulf Moeller <ulf@fitug.de>, reformatted, corrected and integrated by
4328 *) Updates to the new SSL compression code
4329 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
4331 *) Fix so that the version number in the master secret, when passed
4332 via RSA, checks that if TLS was proposed, but we roll back to SSLv3
4333 (because the server will not accept higher), that the version number
4334 is 0x03,0x01, not 0x03,0x00
4335 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
4337 *) Run extensive memory leak checks on SSL apps. Fixed *lots* of memory
4338 leaks in ssl/ relating to new X509_get_pubkey() behaviour. Also fixes
4339 in apps/ and an unrelated leak in crypto/dsa/dsa_vrf.c
4342 *) Support for RAW extensions where an arbitrary extension can be
4343 created by including its DER encoding. See apps/openssl.cnf for
4347 *) Make sure latest Perl versions don't interpret some generated C array
4348 code as Perl array code in the crypto/err/err_genc.pl script.
4349 [Lars Weber <3weber@informatik.uni-hamburg.de>]
4351 *) Modify ms/do_ms.bat to not generate assembly language makefiles since
4352 not many people have the assembler. Various Win32 compilation fixes and
4353 update to the INSTALL.W32 file with (hopefully) more accurate Win32
4357 *) Modify configure script 'Configure' to automatically create crypto/date.h
4358 file under Win32 and also build pem.h from pem.org. New script
4359 util/mkfiles.pl to create the MINFO file on environments that can't do a
4360 'make files': perl util/mkfiles.pl >MINFO should work.
4363 *) Major rework of DES function declarations, in the pursuit of correctness
4364 and purity. As a result, many evil casts evaporated, and some weirdness,
4365 too. You may find this causes warnings in your code. Zapping your evil
4366 casts will probably fix them. Mostly.
4369 *) Fix for a typo in asn1.h. Bug fix to object creation script
4370 obj_dat.pl. It considered a zero in an object definition to mean
4371 "end of object": none of the objects in objects.h have any zeros
4372 so it wasn't spotted.
4373 [Steve Henson, reported by Erwann ABALEA <eabalea@certplus.com>]
4375 *) Add support for Triple DES Cipher Block Chaining with Output Feedback
4376 Masking (CBCM). In the absence of test vectors, the best I have been able
4377 to do is check that the decrypt undoes the encrypt, so far. Send me test
4378 vectors if you have them.
4381 *) Correct calculation of key length for export ciphers (too much space was
4382 allocated for null ciphers). This has not been tested!
4385 *) Modifications to the mkdef.pl for Win32 DEF file creation. The usage
4386 message is now correct (it understands "crypto" and "ssl" on its
4387 command line). There is also now an "update" option. This will update
4388 the util/ssleay.num and util/libeay.num files with any new functions.
4390 perl util/mkdef.pl crypto ssl update
4391 it will update them.
4394 *) Overhauled the Perl interface (perl/*):
4395 - ported BN stuff to OpenSSL's different BN library
4396 - made the perl/ source tree CVS-aware
4397 - renamed the package from SSLeay to OpenSSL (the files still contain
4398 their history because I've copied them in the repository)
4399 - removed obsolete files (the test scripts will be replaced
4400 by better Test::Harness variants in the future)
4401 [Ralf S. Engelschall]
4403 *) First cut for a very conservative source tree cleanup:
4404 1. merge various obsolete readme texts into doc/ssleay.txt
4405 where we collect the old documents and readme texts.
4406 2. remove the first part of files where I'm already sure that we no
4407 longer need them because of three reasons: either they are just temporary
4408 files which were left by Eric or they are preserved original files where
4409 I've verified that the diff is also available in the CVS via "cvs diff
4410 -rSSLeay_0_8_1b" or they were renamed (as it was definitely the case for
4411 the crypto/md/ stuff).
4412 [Ralf S. Engelschall]
4414 *) More extension code. Incomplete support for subject and issuer alt
4415 name, issuer and authority key id. Change the i2v function parameters
4416 and add an extra 'crl' parameter in the X509V3_CTX structure: guess
4417 what that's for :-) Fix to ASN1 macro which messed up
4418 IMPLICIT tag and add f_enum.c which adds a2i, i2a for ENUMERATED.
4421 *) Preliminary support for ENUMERATED type. This is largely copied from the
4425 *) Add new function, EVP_MD_CTX_copy() to replace frequent use of memcpy.
4426 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
4428 *) Make sure `make rehash' target really finds the `openssl' program.
4429 [Ralf S. Engelschall, Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
4431 *) Squeeze another 7% of speed out of MD5 assembler, at least on a P2. I'd
4432 like to hear about it if this slows down other processors.
4435 *) Add CygWin32 platform information to Configure script.
4436 [Alan Batie <batie@aahz.jf.intel.com>]
4438 *) Fixed ms/32all.bat script: `no_asm' -> `no-asm'
4439 [Rainer W. Gerling <gerling@mpg-gv.mpg.de>]
4441 *) New program nseq to manipulate netscape certificate sequences
4444 *) Modify crl2pkcs7 so it supports multiple -certfile arguments. Fix a
4448 *) Fixes to BN code. Previously the default was to define BN_RECURSION
4449 but the BN code had some problems that would cause failures when
4450 doing certificate verification and some other functions.
4451 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
4453 *) Add ASN1 and PEM code to support netscape certificate sequences.
4456 *) Add ASN1 and PEM code to support netscape certificate sequences.
4459 *) Add several PKIX and private extended key usage OIDs.
4462 *) Modify the 'ca' program to handle the new extension code. Modify
4463 openssl.cnf for new extension format, add comments.
4466 *) More X509 V3 changes. Fix typo in v3_bitstr.c. Add support to 'req'
4467 and add a sample to openssl.cnf so req -x509 now adds appropriate
4471 *) Continued X509 V3 changes. Add to other makefiles, integrate with the
4472 error code, add initial support to X509_print() and x509 application.
4475 *) Takes a deep breath and start addding X509 V3 extension support code. Add
4476 files in crypto/x509v3. Move original stuff to crypto/x509v3/old. All this
4477 stuff is currently isolated and isn't even compiled yet.
4480 *) Continuing patches for GeneralizedTime. Fix up certificate and CRL
4481 ASN1 to use ASN1_TIME and modify print routines to use ASN1_TIME_print.
4482 Removed the versions check from X509 routines when loading extensions:
4483 this allows certain broken certificates that don't set the version
4484 properly to be processed.
4487 *) Deal with irritating shit to do with dependencies, in YAAHW (Yet Another
4488 Ad Hoc Way) - Makefile.ssls now all contain local dependencies, which
4489 can still be regenerated with "make depend".
4492 *) Spelling mistake in C version of CAST-128.
4493 [Ben Laurie, reported by Jeremy Hylton <jeremy@cnri.reston.va.us>]
4495 *) Changes to the error generation code. The perl script err-code.pl
4496 now reads in the old error codes and retains the old numbers, only
4497 adding new ones if necessary. It also only changes the .err files if new
4498 codes are added. The makefiles have been modified to only insert errors
4499 when needed (to avoid needlessly modifying header files). This is done
4500 by only inserting errors if the .err file is newer than the auto generated
4501 C file. To rebuild all the error codes from scratch (the old behaviour)
4502 either modify crypto/Makefile.ssl to pass the -regen flag to err_code.pl
4503 or delete all the .err files.
4506 *) CAST-128 was incorrectly implemented for short keys. The C version has
4507 been fixed, but is untested. The assembler versions are also fixed, but
4508 new assembler HAS NOT BEEN GENERATED FOR WIN32 - the Makefile needs fixing
4509 to regenerate it if needed.
4510 [Ben Laurie, reported (with fix for C version) by Jun-ichiro itojun
4511 Hagino <itojun@kame.net>]
4513 *) File was opened incorrectly in randfile.c.
4514 [Ulf Möller <ulf@fitug.de>]
4516 *) Beginning of support for GeneralizedTime. d2i, i2d, check and print
4517 functions. Also ASN1_TIME suite which is a CHOICE of UTCTime or
4518 GeneralizedTime. ASN1_TIME is the proper type used in certificates et
4519 al: it's just almost always a UTCTime. Note this patch adds new error
4520 codes so do a "make errors" if there are problems.
4523 *) Correct Linux 1 recognition in config.
4524 [Ulf Möller <ulf@fitug.de>]
4526 *) Remove pointless MD5 hash when using DSA keys in ca.
4527 [Anonymous <nobody@replay.com>]
4529 *) Generate an error if given an empty string as a cert directory. Also
4530 generate an error if handed NULL (previously returned 0 to indicate an
4531 error, but didn't set one).
4532 [Ben Laurie, reported by Anonymous <nobody@replay.com>]
4534 *) Add prototypes to SSL methods. Make SSL_write's buffer const, at last.
4537 *) Fix the dummy function BN_ref_mod_exp() in rsaref.c to have the correct
4538 parameters. This was causing a warning which killed off the Win32 compile.
4541 *) Remove C++ style comments from crypto/bn/bn_local.h.
4542 [Neil Costigan <neil.costigan@celocom.com>]
4544 *) The function OBJ_txt2nid was broken. It was supposed to return a nid
4545 based on a text string, looking up short and long names and finally
4546 "dot" format. The "dot" format stuff didn't work. Added new function
4547 OBJ_txt2obj to do the same but return an ASN1_OBJECT and rewrote
4548 OBJ_txt2nid to use it. OBJ_txt2obj can also return objects even if the
4549 OID is not part of the table.
4552 *) Add prototypes to X509 lookup/verify methods, fixing a bug in
4553 X509_LOOKUP_by_alias().
4556 *) Sort openssl functions by name.
4559 *) Get the gendsa program working (hopefully) and add it to app list. Remove
4560 encryption from sample DSA keys (in case anyone is interested the password
4564 *) Make _all_ *_free functions accept a NULL pointer.
4565 [Frans Heymans <fheymans@isaserver.be>]
4567 *) If a DH key is generated in s3_srvr.c, don't blow it by trying to use
4569 [Anonymous <nobody@replay.com>]
4571 *) s_server should send the CAfile as acceptable CAs, not its own cert.
4572 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
4574 *) Don't blow it for numeric -newkey arguments to apps/req.
4575 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
4577 *) Temp key "for export" tests were wrong in s3_srvr.c.
4578 [Anonymous <nobody@replay.com>]
4580 *) Add prototype for temp key callback functions
4581 SSL_CTX_set_tmp_{rsa,dh}_callback().
4584 *) Make DH_free() tolerate being passed a NULL pointer (like RSA_free() and
4585 DSA_free()). Make X509_PUBKEY_set() check for errors in d2i_PublicKey().
4588 *) X509_name_add_entry() freed the wrong thing after an error.
4589 [Arne Ansper <arne@ats.cyber.ee>]
4591 *) rsa_eay.c would attempt to free a NULL context.
4592 [Arne Ansper <arne@ats.cyber.ee>]
4594 *) BIO_s_socket() had a broken should_retry() on Windoze.
4595 [Arne Ansper <arne@ats.cyber.ee>]
4597 *) BIO_f_buffer() didn't pass on BIO_CTRL_FLUSH.
4598 [Arne Ansper <arne@ats.cyber.ee>]
4600 *) Make sure the already existing X509_STORE->depth variable is initialized
4601 in X509_STORE_new(), but document the fact that this variable is still
4602 unused in the certificate verification process.
4603 [Ralf S. Engelschall]
4605 *) Fix the various library and apps files to free up pkeys obtained from
4606 X509_PUBKEY_get() et al. Also allow x509.c to handle netscape extensions.
4609 *) Fix reference counting in X509_PUBKEY_get(). This makes
4610 demos/maurice/example2.c work, amongst others, probably.
4611 [Steve Henson and Ben Laurie]
4613 *) First cut of a cleanup for apps/. First the `ssleay' program is now named
4614 `openssl' and second, the shortcut symlinks for the `openssl <command>'
4615 are no longer created. This way we have a single and consistent command
4616 line interface `openssl <command>', similar to `cvs <command>'.
4617 [Ralf S. Engelschall, Paul Sutton and Ben Laurie]
4619 *) ca.c: move test for DSA keys inside #ifndef NO_DSA. Make pubkey
4620 BIT STRING wrapper always have zero unused bits.
4623 *) Add CA.pl, perl version of CA.sh, add extended key usage OID.
4626 *) Make the top-level INSTALL documentation easier to understand.
4629 *) Makefiles updated to exit if an error occurs in a sub-directory
4630 make (including if user presses ^C) [Paul Sutton]
4632 *) Make Montgomery context stuff explicit in RSA data structure.
4635 *) Fix build order of pem and err to allow for generated pem.h.
4638 *) Fix renumbering bug in X509_NAME_delete_entry().
4641 *) Enhanced the err-ins.pl script so it makes the error library number
4642 global and can add a library name. This is needed for external ASN1 and
4643 other error libraries.
4646 *) Fixed sk_insert which never worked properly.
4649 *) Fix ASN1 macros so they can handle indefinite length construted
4650 EXPLICIT tags. Some non standard certificates use these: they can now
4654 *) Merged the various old/obsolete SSLeay documentation files (doc/xxx.doc)
4655 into a single doc/ssleay.txt bundle. This way the information is still
4656 preserved but no longer messes up this directory. Now it's new room for
4657 the new set of documenation files.
4658 [Ralf S. Engelschall]
4660 *) SETs were incorrectly DER encoded. This was a major pain, because they
4661 shared code with SEQUENCEs, which aren't coded the same. This means that
4662 almost everything to do with SETs or SEQUENCEs has either changed name or
4663 number of arguments.
4664 [Ben Laurie, based on a partial fix by GP Jayan <gp@nsj.co.jp>]
4666 *) Fix test data to work with the above.
4669 *) Fix the RSA header declarations that hid a bug I fixed in 0.9.0b but
4670 was already fixed by Eric for 0.9.1 it seems.
4671 [Ben Laurie - pointed out by Ulf Möller <ulf@fitug.de>]
4673 *) Autodetect FreeBSD3.
4676 *) Fix various bugs in Configure. This affects the following platforms:
4680 unixware-2.0-pentium
4684 *) Eliminate generated files from CVS. Reorder tests to regenerate files
4685 before they are needed.
4688 *) Generate Makefile.ssl from Makefile.org (to keep CVS happy).
4692 Changes between 0.9.1b and 0.9.1c [23-Dec-1998]
4694 *) Added OPENSSL_VERSION_NUMBER to crypto/crypto.h and
4695 changed SSLeay to OpenSSL in version strings.
4696 [Ralf S. Engelschall]
4698 *) Some fixups to the top-level documents.
4701 *) Fixed the nasty bug where rsaref.h was not found under compile-time
4702 because the symlink to include/ was missing.
4703 [Ralf S. Engelschall]
4705 *) Incorporated the popular no-RSA/DSA-only patches
4706 which allow to compile a RSA-free SSLeay.
4707 [Andrew Cooke / Interrader Ldt., Ralf S. Engelschall]
4709 *) Fixed nasty rehash problem under `make -f Makefile.ssl links'
4710 when "ssleay" is still not found.
4711 [Ralf S. Engelschall]
4713 *) Added more platforms to Configure: Cray T3E, HPUX 11,
4714 [Ralf S. Engelschall, Beckmann <beckman@acl.lanl.gov>]
4716 *) Updated the README file.
4717 [Ralf S. Engelschall]
4719 *) Added various .cvsignore files in the CVS repository subdirs
4720 to make a "cvs update" really silent.
4721 [Ralf S. Engelschall]
4723 *) Recompiled the error-definition header files and added
4724 missing symbols to the Win32 linker tables.
4725 [Ralf S. Engelschall]
4727 *) Cleaned up the top-level documents;
4728 o new files: CHANGES and LICENSE
4729 o merged VERSION, HISTORY* and README* files a CHANGES.SSLeay
4730 o merged COPYRIGHT into LICENSE
4731 o removed obsolete TODO file
4732 o renamed MICROSOFT to INSTALL.W32
4733 [Ralf S. Engelschall]
4735 *) Removed dummy files from the 0.9.1b source tree:
4736 crypto/asn1/x crypto/bio/cd crypto/bio/fg crypto/bio/grep crypto/bio/vi
4737 crypto/bn/asm/......add.c crypto/bn/asm/a.out crypto/dsa/f crypto/md5/f
4738 crypto/pem/gmon.out crypto/perlasm/f crypto/pkcs7/build crypto/rsa/f
4739 crypto/sha/asm/f crypto/threads/f ms/zzz ssl/f ssl/f.mak test/f
4740 util/f.mak util/pl/f util/pl/f.mak crypto/bf/bf_locl.old apps/f
4741 [Ralf S. Engelschall]
4743 *) Added various platform portability fixes.
4746 *) The Genesis of the OpenSSL rpject:
4747 We start with the latest (unreleased) SSLeay version 0.9.1b which Eric A.
4748 Young and Tim J. Hudson created while they were working for C2Net until
4750 [The OpenSSL Project]
4753 Changes between 0.9.0b and 0.9.1b [not released]
4755 *) Updated a few CA certificates under certs/
4758 *) Changed some BIGNUM api stuff.
4761 *) Various platform ports: OpenBSD, Ultrix, IRIX 64bit, NetBSD,
4762 DGUX x86, Linux Alpha, etc.
4765 *) New COMP library [crypto/comp/] for SSL Record Layer Compression:
4766 RLE (dummy implemented) and ZLIB (really implemented when ZLIB is
4770 *) Add -strparse option to asn1pars program which parses nested
4772 [Dr Stephen Henson <shenson@bigfoot.com>]
4774 *) Added "oid_file" to ssleay.cnf for "ca" and "req" programs.
4777 *) DSA fix for "ca" program.
4780 *) Added "-genkey" option to "dsaparam" program.
4783 *) Added RIPE MD160 (rmd160) message digest.
4786 *) Added -a (all) option to "ssleay version" command.
4789 *) Added PLATFORM define which is the id given to Configure.
4792 *) Added MemCheck_XXXX functions to crypto/mem.c for memory checking.
4795 *) Extended the ASN.1 parser routines.
4798 *) Extended BIO routines to support REUSEADDR, seek, tell, etc.
4801 *) Added a BN_CTX to the BN library.
4804 *) Fixed the weak key values in DES library
4807 *) Changed API in EVP library for cipher aliases.
4810 *) Added support for RC2/64bit cipher.
4813 *) Converted the lhash library to the crypto/mem.c functions.
4816 *) Added more recognized ASN.1 object ids.
4819 *) Added more RSA padding checks for SSL/TLS.
4822 *) Added BIO proxy/filter functionality.
4825 *) Added extra_certs to SSL_CTX which can be used
4826 send extra CA certificates to the client in the CA cert chain sending
4827 process. It can be configured with SSL_CTX_add_extra_chain_cert().
4830 *) Now Fortezza is denied in the authentication phase because
4831 this is key exchange mechanism is not supported by SSLeay at all.
4834 *) Additional PKCS1 checks.
4837 *) Support the string "TLSv1" for all TLS v1 ciphers.
4840 *) Added function SSL_get_ex_data_X509_STORE_CTX_idx() which gives the
4841 ex_data index of the SSL context in the X509_STORE_CTX ex_data.
4844 *) Fixed a few memory leaks.
4847 *) Fixed various code and comment typos.
4850 *) A minor bug in ssl/s3_clnt.c where there would always be 4 0
4851 bytes sent in the client random.
4852 [Edward Bishop <ebishop@spyglass.com>]
projects / openssl.git / blob