5 Changes between 0.9.8e and 0.9.8f-fips [xx XXX xxxx]
7 *) Add SSE2 instruction support to WIN32 build. These will be compiled
8 by default and used it an appopriate CPU is detected. Some older versions
9 of NASM or MASM which don't support SSE2 will need to be updated.
12 *) Tolerate DigestInfo structure with absent parameters in FIPS mode
13 (as required by several standards).
16 *) Enhance mkfipsscr.pl to cope with different directory layouts. It now
17 relies on the filename and makes no assumptions about the pathname.
18 In the case of PSS it scans the file to determine the salt length.
19 Paths can be filtered. Also reports duplicate and missing files.
22 *) Updates to WIN32 build system. Make use of AES assembly language routines.
23 Use assembly language routines in FIPS compilation.
26 *) Use standard implementations of SHAx, DES, AES under crypto/ in FIPS
27 mode to avoid having to maintain two versions. This will also make use
28 of appropriate assembly language optimizations.
31 *) Check for selftest status in all crypto operations and exit with a
32 fatal error if selftest failed.
35 *) New flag in EVP_CIPHER: EVP_CIPH_FLAG_DEFAULT_ASN1. This will
36 automatically use EVP_CIPHER_{get,set}_asn1_iv and avoid the
37 need for any ASN1 dependencies in FIPS library. Move AES and 3DES
38 cipher definitions to fips library and modify AES and 3DES algorithm
39 tests and self tests to use EVP.
42 *) Move EVP cipher code into enc_min.c to support a minimal implementation
43 for use by FIPS applications.
46 *) Add algorithm config module. Currently just handles setting FIPS mode.
49 *) Rewrite self tests and pairwise tests to use EVP. Add more extensive
50 self tests for RSA in all digests and modes.
53 *) New flags RSA_FIPS_METHOD and DSA_FIPS_METHOD to indicate a method is
54 allowed in FIPS mode. Disable direct low level RSA and DSA signature
55 operations in FIPS mode so all operations have to be made via EVP.
58 *) New flag EVP_MD_FLAG_SVCTX which passes EVP_MD_CTX and key to underlying
59 sign/verify method. This permits the method to perform finalization
60 and signing itself and have access to the EVP_MD_CTX structure in case
61 additional parameters are needed. Modify fips_{dsa,rsa}_{sign,verify}
62 to use EVP_MD_FLAG_SVCTX and support PSS and X9.31 RSA modes.
63 Modify RSA algorithm test programs to use new parameters.
66 *) Add small standalone ASN1 encoder/decoder to handle DSA signature format.
67 Modify test, algorithm test and selftest routines to use EVP for DSA.
68 Move FIPS implementation of EVP_sha*() and EVP_dss1() under fips-1.0.
71 *) Modify VC++ build system to rename .text and .rdata segments in
72 FIPS sources to .fipst${a,b,c}, and $fipsr${a,b,c} and place them
73 in a static library fipscanister.lib using a perl script. These are
74 then combined by the VC++ linker into a single segment in suffix
75 order but without the suffix (i.e. .fipstx, .fipsrd and .fipsda).
76 This serves the same purpose as fipscanister.o on other platforms
77 but has the advantage that it can be created using only standard VC++
79 [Steve Henson and Andy Polyakov]
81 *) Modify WIN32 build system to forward references functions implemented
85 *) Move error library so that all lhash dependencies are in a separate
86 file. Include a simplified ERR_get_state() function for stand alone
87 FIPS applications. Include a initialization function OPENSSL_init()
88 to set all callbacks, automatically call OPENSSL_init() once when
89 a cipher or digest is added. This should mean that almost all applications
90 set the callbacks automatically. Exceptional cases can call OPENSSL_init()
93 #ifdef OPENSSL_HAVE_INIT
96 before starting any threads.
99 *) Collect common functions into header file "fips_utl.h".
102 *) Only enable dynamic lock functionality in CRYPTO_lock() when it is really
103 needed. Move some lock functionality into new file dyn_lck.c .
104 This further reduces FIPS dependencies allowing the complete removal
105 of STACK and OBJ_bsearch().
108 *) Reduce FIPS test program dependencies by providing stand alone
109 versions of some existing functions in libcrypto. Avoid use
110 of BIOs by converting to system stdio. Move some functions in FIPS
111 files: e.g. all use of BIO_printf().
114 *) Modify build of libcrypto in FIPS mode by using a perl
115 script "arx.pl" which calls the archiver specifically
116 excluding any FIPS dependencies in libcrypto.
119 *) Port OpenSSL 0.9.7 FIPS code to 0.9.8. Convert to new
120 Makefile form. Update Configure. Convert and update
121 FIPS source files. Update libcrypto, libssl and apps
122 with additional functionality from 0.9.7 FIPS code.
123 Update Windows build system.
126 Changes between 0.9.8e and 0.9.8f [23 Feb 2007]
128 *) Mitigate branch prediction attacks, which can be practical if a
129 single processor is shared, allowing a spy process to extract
130 information. For detailed background information, see
131 http://eprint.iacr.org/2007/039 (O. Aciicmez, S. Gueron,
132 J.-P. Seifert, "New Branch Prediction Vulnerabilities in OpenSSL
133 and Necessary Software Countermeasures"). The core of the change
134 are new versions BN_div_no_branch() and
135 BN_mod_inverse_no_branch() of BN_div() and BN_mod_inverse(),
136 respectively, which are slower, but avoid the security-relevant
137 conditional branches. These are automatically called by BN_div()
138 and BN_mod_inverse() if the flag BN_FLG_CONSTTIME is set for the
139 modulus. Also, BN_is_bit_set() has been changed to remove a
142 BN_FLG_CONSTTIME is the new name for the previous
143 BN_FLG_EXP_CONSTTIME flag, since it now affects more than just
144 modular exponentiation. (Since OpenSSL 0.9.7h, setting this flag
145 in the exponent causes BN_mod_exp_mont() to use the alternative
146 implementation in BN_mod_exp_mont_consttime().) The old name
147 remains as a deprecated alias.
149 Similary, RSA_FLAG_NO_EXP_CONSTTIME is replaced by a more general
150 RSA_FLAG_NO_CONSTTIME flag since the RSA implementation now uses
151 constant-time implementations for more than just exponentiation.
152 Here too the old name is kept as a deprecated alias.
154 BN_BLINDING_new() will now use BN_dup() for the modulus so that
155 the BN_BLINDING structure gets an independent copy of the
156 modulus. This means that the previous "BIGNUM *m" argument to
157 BN_BLINDING_new() and to BN_BLINDING_create_param() now
158 essentially becomes "const BIGNUM *m", although we can't actually
159 change this in the header file before 0.9.9. It allows
160 RSA_setup_blinding() to use BN_with_flags() on the modulus to
161 enable BN_FLG_CONSTTIME.
163 [Matthew D Wood (Intel Corp)]
165 *) Mitigate branch prediction attacks, which can be practical if a
166 single processor is shared, allowing a spy process to extract
167 information. For detailed background information, see
168 http://eprint.iacr.org/2007/039 (O. Aciicmez, S. Gueron,
169 J.-P. Seifert, "New Branch Prediction Vulnerabilities in OpenSSL
170 and Necessary Software Countermeasures"). The core of the change
171 are new versions BN_div_no_branch() and
172 BN_mod_inverse_no_branch() of BN_div() and BN_mod_inverse(),
173 respectively, which are slower, but avoid the security-relevant
174 conditional branches. These are automatically called by BN_div()
175 and BN_mod_inverse() if the flag BN_FLG_CONSTTIME is set for one
176 of the input BIGNUMs. Also, BN_is_bit_set() has been changed to
177 remove a conditional branch.
179 BN_FLG_CONSTTIME is the new name for the previous
180 BN_FLG_EXP_CONSTTIME flag, since it now affects more than just
181 modular exponentiation. (Since OpenSSL 0.9.7h, setting this flag
182 in the exponent causes BN_mod_exp_mont() to use the alternative
183 implementation in BN_mod_exp_mont_consttime().) The old name
184 remains as a deprecated alias.
186 Similary, RSA_FLAG_NO_EXP_CONSTTIME is replaced by a more general
187 RSA_FLAG_NO_CONSTTIME flag since the RSA implementation now uses
188 constant-time implementations for more than just exponentiation.
189 Here too the old name is kept as a deprecated alias.
191 BN_BLINDING_new() will now use BN_dup() for the modulus so that
192 the BN_BLINDING structure gets an independent copy of the
193 modulus. This means that the previous "BIGNUM *m" argument to
194 BN_BLINDING_new() and to BN_BLINDING_create_param() now
195 essentially becomes "const BIGNUM *m", although we can't actually
196 change this in the header file before 0.9.9. It allows
197 RSA_setup_blinding() to use BN_with_flags() on the modulus to
198 enable BN_FLG_CONSTTIME.
200 [Matthew D Wood (Intel Corp)]
202 *) Add the Korean symmetric 128-bit cipher SEED (see
203 http://www.kisa.or.kr/kisa/seed/jsp/seed_eng.jsp) and
204 add SEED ciphersuites from RFC 4162:
206 TLS_RSA_WITH_SEED_CBC_SHA = "SEED-SHA"
207 TLS_DHE_DSS_WITH_SEED_CBC_SHA = "DHE-DSS-SEED-SHA"
208 TLS_DHE_RSA_WITH_SEED_CBC_SHA = "DHE-RSA-SEED-SHA"
209 TLS_DH_anon_WITH_SEED_CBC_SHA = "ADH-SEED-SHA"
211 To minimize changes between patchlevels in the OpenSSL 0.9.8
212 series, SEED remains excluded from compilation unless OpenSSL
213 is configured with 'enable-seed'.
216 *) Mitigate branch prediction attacks, which can be practical if a
217 single processor is shared, allowing a spy process to extract
218 information. For detailed background information, see
219 http://eprint.iacr.org/2007/039 (O. Aciicmez, S. Gueron,
220 J.-P. Seifert, "New Branch Prediction Vulnerabilities in OpenSSL
221 and Necessary Software Countermeasures"). The core of the change
222 are new versions BN_div_no_branch() and
223 BN_mod_inverse_no_branch() of BN_div() and BN_mod_inverse(),
224 respectively, which are slower, but avoid the security-relevant
225 conditional branches. These are automatically called by BN_div()
226 and BN_mod_inverse() if the flag BN_FLG_CONSTTIME is set for one
227 of the input BIGNUMs. Also, BN_is_bit_set() has been changed to
228 remove a conditional branch.
230 BN_FLG_CONSTTIME is the new name for the previous
231 BN_FLG_EXP_CONSTTIME flag, since it now affects more than just
232 modular exponentiation. (Since OpenSSL 0.9.7h, setting this flag
233 in the exponent causes BN_mod_exp_mont() to use the alternative
234 implementation in BN_mod_exp_mont_consttime().) The old name
235 remains as a deprecated alias.
237 Similary, RSA_FLAG_NO_EXP_CONSTTIME is replaced by a more general
238 RSA_FLAG_NO_CONSTTIME flag since the RSA implementation now uses
239 constant-time implementations for more than just exponentiation.
240 Here too the old name is kept as a deprecated alias.
242 BN_BLINDING_new() will now use BN_dup() for the modulus so that
243 the BN_BLINDING structure gets an independent copy of the
244 modulus. This means that the previous "BIGNUM *m" argument to
245 BN_BLINDING_new() and to BN_BLINDING_create_param() now
246 essentially becomes "const BIGNUM *m", although we can't actually
247 change this in the header file before 0.9.9. It allows
248 RSA_setup_blinding() to use BN_with_flags() on the modulus to
249 enable BN_FLG_CONSTTIME.
251 [Matthew D Wood (Intel Corp)]
253 *) Add the Korean symmetric 128-bit cipher SEED (see
254 http://www.kisa.or.kr/kisa/seed/jsp/seed_eng.jsp) and
255 add SEED ciphersuites from RFC 4162:
257 TLS_RSA_WITH_SEED_CBC_SHA = "SEED-SHA"
258 TLS_DHE_DSS_WITH_SEED_CBC_SHA = "DHE-DSS-SEED-SHA"
259 TLS_DHE_RSA_WITH_SEED_CBC_SHA = "DHE-RSA-SEED-SHA"
260 TLS_DH_anon_WITH_SEED_CBC_SHA = "ADH-SEED-SHA"
262 To minimize changes between patchlevels in the OpenSSL 0.9.8
263 series, SEED remains excluded from compilation unless OpenSSL
264 is configured with 'enable-seed'.
267 *) Mitigate branch prediction attacks, which can be practical if a
268 single processor is shared, allowing a spy process to extract
269 information. For detailed background information, see
270 http://eprint.iacr.org/2007/039 (O. Aciicmez, S. Gueron,
271 J.-P. Seifert, "New Branch Prediction Vulnerabilities in OpenSSL
272 and Necessary Software Countermeasures"). The core of the change
273 are new versions BN_div_no_branch() and
274 BN_mod_inverse_no_branch() of BN_div() and BN_mod_inverse(),
275 respectively, which are slower, but avoid the security-relevant
276 conditional branches. These are automatically called by BN_div()
277 and BN_mod_inverse() if the flag BN_FLG_CONSTTIME is set for one
278 of the input BIGNUMs. Also, BN_is_bit_set() has been changed to
279 remove a conditional branch.
281 BN_FLG_CONSTTIME is the new name for the previous
282 BN_FLG_EXP_CONSTTIME flag, since it now affects more than just
283 modular exponentiation. (Since OpenSSL 0.9.7h, setting this flag
284 in the exponent causes BN_mod_exp_mont() to use the alternative
285 implementation in BN_mod_exp_mont_consttime().) The old name
286 remains as a deprecated alias.
288 Similary, RSA_FLAG_NO_EXP_CONSTTIME is replaced by a more general
289 RSA_FLAG_NO_CONSTTIME flag since the RSA implementation now uses
290 constant-time implementations for more than just exponentiation.
291 Here too the old name is kept as a deprecated alias.
293 BN_BLINDING_new() will now use BN_dup() for the modulus so that
294 the BN_BLINDING structure gets an independent copy of the
295 modulus. This means that the previous "BIGNUM *m" argument to
296 BN_BLINDING_new() and to BN_BLINDING_create_param() now
297 essentially becomes "const BIGNUM *m", although we can't actually
298 change this in the header file before 0.9.9. It allows
299 RSA_setup_blinding() to use BN_with_flags() on the modulus to
300 enable BN_FLG_CONSTTIME.
302 [Matthew D Wood (Intel Corp)]
304 *) Squeeze another 10% out of IGE mode when in != out.
307 *) AES IGE mode speedup.
308 [Dean Gaudet (Google)]
310 *) Add the Korean symmetric 128-bit cipher SEED (see
311 http://www.kisa.or.kr/kisa/seed/jsp/seed_eng.jsp) and
312 add SEED ciphersuites from RFC 4162:
314 TLS_RSA_WITH_SEED_CBC_SHA = "SEED-SHA"
315 TLS_DHE_DSS_WITH_SEED_CBC_SHA = "DHE-DSS-SEED-SHA"
316 TLS_DHE_RSA_WITH_SEED_CBC_SHA = "DHE-RSA-SEED-SHA"
317 TLS_DH_anon_WITH_SEED_CBC_SHA = "ADH-SEED-SHA"
319 To minimize changes between patchlevels in the OpenSSL 0.9.8
320 series, SEED remains excluded from compilation unless OpenSSL
321 is configured with 'enable-seed'.
324 *) Mitigate branch prediction attacks, which can be practical if a
325 single processor is shared, allowing a spy process to extract
326 information. For detailed background information, see
327 http://eprint.iacr.org/2007/039 (O. Aciicmez, S. Gueron,
328 J.-P. Seifert, "New Branch Prediction Vulnerabilities in OpenSSL
329 and Necessary Software Countermeasures"). The core of the change
330 are new versions BN_div_no_branch() and
331 BN_mod_inverse_no_branch() of BN_div() and BN_mod_inverse(),
332 respectively, which are slower, but avoid the security-relevant
333 conditional branches. These are automatically called by BN_div()
334 and BN_mod_inverse() if the flag BN_FLG_CONSTTIME is set for one
335 of the input BIGNUMs. Also, BN_is_bit_set() has been changed to
336 remove a conditional branch.
338 BN_FLG_CONSTTIME is the new name for the previous
339 BN_FLG_EXP_CONSTTIME flag, since it now affects more than just
340 modular exponentiation. (Since OpenSSL 0.9.7h, setting this flag
341 in the exponent causes BN_mod_exp_mont() to use the alternative
342 implementation in BN_mod_exp_mont_consttime().) The old name
343 remains as a deprecated alias.
345 Similary, RSA_FLAG_NO_EXP_CONSTTIME is replaced by a more general
346 RSA_FLAG_NO_CONSTTIME flag since the RSA implementation now uses
347 constant-time implementations for more than just exponentiation.
348 Here too the old name is kept as a deprecated alias.
350 BN_BLINDING_new() will now use BN_dup() for the modulus so that
351 the BN_BLINDING structure gets an independent copy of the
352 modulus. This means that the previous "BIGNUM *m" argument to
353 BN_BLINDING_new() and to BN_BLINDING_create_param() now
354 essentially becomes "const BIGNUM *m", although we can't actually
355 change this in the header file before 0.9.9. It allows
356 RSA_setup_blinding() to use BN_with_flags() on the modulus to
357 enable BN_FLG_CONSTTIME.
359 [Matthew D Wood (Intel Corp)]
361 *) In the SSL/TLS server implementation, be strict about session ID
362 context matching (which matters if an application uses a single
363 external cache for different purposes). Previously,
364 out-of-context reuse was forbidden only if SSL_VERIFY_PEER was
365 set. This did ensure strict client verification, but meant that,
366 with applications using a single external cache for quite
367 different requirements, clients could circumvent ciphersuite
368 restrictions for a given session ID context by starting a session
369 in a different context.
372 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
373 a ciphersuite string such as "DEFAULT:RSA" cannot enable
374 authentication-only ciphersuites.
377 Changes between 0.9.8d and 0.9.8e [23 Feb 2007]
379 *) Since AES128 and AES256 (and similarly Camellia128 and
380 Camellia256) share a single mask bit in the logic of
381 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
382 kludge to work properly if AES128 is available and AES256 isn't
383 (or if Camellia128 is available and Camellia256 isn't).
386 *) Fix the BIT STRING encoding generated by crypto/ec/ec_asn1.c
387 (within i2d_ECPrivateKey, i2d_ECPKParameters, i2d_ECParameters):
388 When a point or a seed is encoded in a BIT STRING, we need to
389 prevent the removal of trailing zero bits to get the proper DER
390 encoding. (By default, crypto/asn1/a_bitstr.c assumes the case
391 of a NamedBitList, for which trailing 0 bits need to be removed.)
394 *) Have SSL/TLS server implementation tolerate "mismatched" record
395 protocol version while receiving ClientHello even if the
396 ClientHello is fragmented. (The server can't insist on the
397 particular protocol version it has chosen before the ServerHello
398 message has informed the client about his choice.)
401 *) Add RFC 3779 support.
402 [Rob Austein for ARIN, Ben Laurie]
404 *) Load error codes if they are not already present instead of using a
405 static variable. This allows them to be cleanly unloaded and reloaded.
406 Improve header file function name parsing.
409 *) extend SMTP and IMAP protocol emulation in s_client to use EHLO
410 or CAPABILITY handshake as required by RFCs.
413 Changes between 0.9.8c and 0.9.8d [28 Sep 2006]
415 *) Introduce limits to prevent malicious keys being able to
416 cause a denial of service. (CVE-2006-2940)
417 [Steve Henson, Bodo Moeller]
419 *) Fix ASN.1 parsing of certain invalid structures that can result
420 in a denial of service. (CVE-2006-2937) [Steve Henson]
422 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
423 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
425 *) Fix SSL client code which could crash if connecting to a
426 malicious SSLv2 server. (CVE-2006-4343)
427 [Tavis Ormandy and Will Drewry, Google Security Team]
429 *) Since 0.9.8b, ciphersuite strings naming explicit ciphersuites
430 match only those. Before that, "AES256-SHA" would be interpreted
431 as a pattern and match "AES128-SHA" too (since AES128-SHA got
432 the same strength classification in 0.9.7h) as we currently only
433 have a single AES bit in the ciphersuite description bitmap.
434 That change, however, also applied to ciphersuite strings such as
435 "RC4-MD5" that intentionally matched multiple ciphersuites --
436 namely, SSL 2.0 ciphersuites in addition to the more common ones
437 from SSL 3.0/TLS 1.0.
439 So we change the selection algorithm again: Naming an explicit
440 ciphersuite selects this one ciphersuite, and any other similar
441 ciphersuite (same bitmap) from *other* protocol versions.
442 Thus, "RC4-MD5" again will properly select both the SSL 2.0
443 ciphersuite and the SSL 3.0/TLS 1.0 ciphersuite.
445 Since SSL 2.0 does not have any ciphersuites for which the
446 128/256 bit distinction would be relevant, this works for now.
447 The proper fix will be to use different bits for AES128 and
448 AES256, which would have avoided the problems from the beginning;
449 however, bits are scarce, so we can only do this in a new release
450 (not just a patchlevel) when we can change the SSL_CIPHER
451 definition to split the single 'unsigned long mask' bitmap into
452 multiple values to extend the available space.
456 Changes between 0.9.8b and 0.9.8c [05 Sep 2006]
458 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
459 (CVE-2006-4339) [Ben Laurie and Google Security Team]
461 *) Add AES IGE and biIGE modes.
464 *) Change the Unix randomness entropy gathering to use poll() when
465 possible instead of select(), since the latter has some
466 undesirable limitations.
467 [Darryl Miles via Richard Levitte and Bodo Moeller]
469 *) Disable "ECCdraft" ciphersuites more thoroughly. Now special
470 treatment in ssl/ssl_ciph.s makes sure that these ciphersuites
471 cannot be implicitly activated as part of, e.g., the "AES" alias.
472 However, please upgrade to OpenSSL 0.9.9[-dev] for
473 non-experimental use of the ECC ciphersuites to get TLS extension
474 support, which is required for curve and point format negotiation
475 to avoid potential handshake problems.
478 *) Disable rogue ciphersuites:
480 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
481 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
482 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
484 The latter two were purportedly from
485 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
488 Also deactivate the remaining ciphersuites from
489 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
490 unofficial, and the ID has long expired.
493 *) Fix RSA blinding Heisenbug (problems sometimes occured on
494 dual-core machines) and other potential thread-safety issues.
497 *) Add the symmetric cipher Camellia (128-bit, 192-bit, 256-bit key
498 versions), which is now available for royalty-free use
499 (see http://info.isl.ntt.co.jp/crypt/eng/info/chiteki.html).
500 Also, add Camellia TLS ciphersuites from RFC 4132.
502 To minimize changes between patchlevels in the OpenSSL 0.9.8
503 series, Camellia remains excluded from compilation unless OpenSSL
504 is configured with 'enable-camellia'.
507 *) Disable the padding bug check when compression is in use. The padding
508 bug check assumes the first packet is of even length, this is not
509 necessarily true if compresssion is enabled and can result in false
510 positives causing handshake failure. The actual bug test is ancient
511 code so it is hoped that implementations will either have fixed it by
512 now or any which still have the bug do not support compression.
515 Changes between 0.9.8a and 0.9.8b [04 May 2006]
517 *) When applying a cipher rule check to see if string match is an explicit
518 cipher suite and only match that one cipher suite if it is.
521 *) Link in manifests for VC++ if needed.
522 [Austin Ziegler <halostatue@gmail.com>]
524 *) Update support for ECC-based TLS ciphersuites according to
525 draft-ietf-tls-ecc-12.txt with proposed changes (but without
526 TLS extensions, which are supported starting with the 0.9.9
527 branch, not in the OpenSSL 0.9.8 branch).
530 *) New functions EVP_CIPHER_CTX_new() and EVP_CIPHER_CTX_free() to support
531 opaque EVP_CIPHER_CTX handling.
534 *) Fixes and enhancements to zlib compression code. We now only use
535 "zlib1.dll" and use the default __cdecl calling convention on Win32
536 to conform with the standards mentioned here:
537 http://www.zlib.net/DLL_FAQ.txt
538 Static zlib linking now works on Windows and the new --with-zlib-include
539 --with-zlib-lib options to Configure can be used to supply the location
540 of the headers and library. Gracefully handle case where zlib library
544 *) Several fixes and enhancements to the OID generation code. The old code
545 sometimes allowed invalid OIDs (1.X for X >= 40 for example), couldn't
546 handle numbers larger than ULONG_MAX, truncated printing and had a
547 non standard OBJ_obj2txt() behaviour.
550 *) Add support for building of engines under engine/ as shared libraries
551 under VC++ build system.
554 *) Corrected the numerous bugs in the Win32 path splitter in DSO.
555 Hopefully, we will not see any false combination of paths any more.
558 Changes between 0.9.8 and 0.9.8a [11 Oct 2005]
560 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
561 (part of SSL_OP_ALL). This option used to disable the
562 countermeasure against man-in-the-middle protocol-version
563 rollback in the SSL 2.0 server implementation, which is a bad
564 idea. (CVE-2005-2969)
566 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
567 for Information Security, National Institute of Advanced Industrial
568 Science and Technology [AIST], Japan)]
570 *) Add two function to clear and return the verify parameter flags.
573 *) Keep cipherlists sorted in the source instead of sorting them at
574 runtime, thus removing the need for a lock.
577 *) Avoid some small subgroup attacks in Diffie-Hellman.
578 [Nick Mathewson and Ben Laurie]
580 *) Add functions for well-known primes.
583 *) Extended Windows CE support.
584 [Satoshi Nakamura and Andy Polyakov]
586 *) Initialize SSL_METHOD structures at compile time instead of during
587 runtime, thus removing the need for a lock.
590 *) Make PKCS7_decrypt() work even if no certificate is supplied by
591 attempting to decrypt each encrypted key in turn. Add support to
595 Changes between 0.9.7h and 0.9.8 [05 Jul 2005]
597 [NB: OpenSSL 0.9.7i and later 0.9.7 patch levels were released after
600 *) Add libcrypto.pc and libssl.pc for those who feel they need them.
603 *) Change CA.sh and CA.pl so they don't bundle the CSR and the private
604 key into the same file any more.
607 *) Add initial support for Win64, both IA64 and AMD64/x64 flavors.
610 *) Add -utf8 command line and config file option to 'ca'.
611 [Stefan <stf@udoma.org]
613 *) Removed the macro des_crypt(), as it seems to conflict with some
614 libraries. Use DES_crypt().
617 *) Correct naming of the 'chil' and '4758cca' ENGINEs. This
618 involves renaming the source and generated shared-libs for
619 both. The engines will accept the corrected or legacy ids
620 ('ncipher' and '4758_cca' respectively) when binding. NB,
621 this only applies when building 'shared'.
622 [Corinna Vinschen <vinschen@redhat.com> and Geoff Thorpe]
624 *) Add attribute functions to EVP_PKEY structure. Modify
625 PKCS12_create() to recognize a CSP name attribute and
626 use it. Make -CSP option work again in pkcs12 utility.
629 *) Add new functionality to the bn blinding code:
630 - automatic re-creation of the BN_BLINDING parameters after
631 a fixed number of uses (currently 32)
632 - add new function for parameter creation
633 - introduce flags to control the update behaviour of the
634 BN_BLINDING parameters
635 - hide BN_BLINDING structure
636 Add a second BN_BLINDING slot to the RSA structure to improve
637 performance when a single RSA object is shared among several
641 *) Add support for DTLS.
642 [Nagendra Modadugu <nagendra@cs.stanford.edu> and Ben Laurie]
644 *) Add support for DER encoded private keys (SSL_FILETYPE_ASN1)
645 to SSL_CTX_use_PrivateKey_file() and SSL_use_PrivateKey_file()
648 *) Remove buggy and incompletet DH cert support from
649 ssl/ssl_rsa.c and ssl/s3_both.c
652 *) Use SHA-1 instead of MD5 as the default digest algorithm for
653 the apps/openssl applications.
656 *) Compile clean with "-Wall -Wmissing-prototypes
657 -Wstrict-prototypes -Wmissing-declarations -Werror". Currently
658 DEBUG_SAFESTACK must also be set.
661 *) Change ./Configure so that certain algorithms can be disabled by default.
662 The new counterpiece to "no-xxx" is "enable-xxx".
664 The patented RC5 and MDC2 algorithms will now be disabled unless
665 "enable-rc5" and "enable-mdc2", respectively, are specified.
667 (IDEA remains enabled despite being patented. This is because IDEA
668 is frequently required for interoperability, and there is no license
669 fee for non-commercial use. As before, "no-idea" can be used to
670 avoid this algorithm.)
674 *) Add processing of proxy certificates (see RFC 3820). This work was
675 sponsored by KTH (The Royal Institute of Technology in Stockholm) and
676 EGEE (Enabling Grids for E-science in Europe).
679 *) RC4 performance overhaul on modern architectures/implementations, such
680 as Intel P4, IA-64 and AMD64.
683 *) New utility extract-section.pl. This can be used specify an alternative
684 section number in a pod file instead of having to treat each file as
685 a separate case in Makefile. This can be done by adding two lines to the
688 =for comment openssl_section:XXX
690 The blank line is mandatory.
694 *) New arguments -certform, -keyform and -pass for s_client and s_server
695 to allow alternative format key and certificate files and passphrase
699 *) New structure X509_VERIFY_PARAM which combines current verify parameters,
700 update associated structures and add various utility functions.
702 Add new policy related verify parameters, include policy checking in
703 standard verify code. Enhance 'smime' application with extra parameters
704 to support policy checking and print out.
707 *) Add a new engine to support VIA PadLock ACE extensions in the VIA C3
708 Nehemiah processors. These extensions support AES encryption in hardware
709 as well as RNG (though RNG support is currently disabled).
710 [Michal Ludvig <michal@logix.cz>, with help from Andy Polyakov]
712 *) Deprecate BN_[get|set]_params() functions (they were ignored internally).
715 *) New FIPS 180-2 algorithms, SHA-224/-256/-384/-512 are implemented.
716 [Andy Polyakov and a number of other people]
718 *) Improved PowerPC platform support. Most notably BIGNUM assembler
719 implementation contributed by IBM.
720 [Suresh Chari, Peter Waltenberg, Andy Polyakov]
722 *) The new 'RSA_generate_key_ex' function now takes a BIGNUM for the public
723 exponent rather than 'unsigned long'. There is a corresponding change to
724 the new 'rsa_keygen' element of the RSA_METHOD structure.
725 [Jelte Jansen, Geoff Thorpe]
727 *) Functionality for creating the initial serial number file is now
728 moved from CA.pl to the 'ca' utility with a new option -create_serial.
730 (Before OpenSSL 0.9.7e, CA.pl used to initialize the serial
731 number file to 1, which is bound to cause problems. To avoid
732 the problems while respecting compatibility between different 0.9.7
733 patchlevels, 0.9.7e employed 'openssl x509 -next_serial' in
734 CA.pl for serial number initialization. With the new release 0.9.8,
735 we can fix the problem directly in the 'ca' utility.)
738 *) Reduced header interdepencies by declaring more opaque objects in
739 ossl_typ.h. As a consequence, including some headers (eg. engine.h) will
740 give fewer recursive includes, which could break lazy source code - so
741 this change is covered by the OPENSSL_NO_DEPRECATED symbol. As always,
742 developers should define this symbol when building and using openssl to
743 ensure they track the recommended behaviour, interfaces, [etc], but
744 backwards-compatible behaviour prevails when this isn't defined.
747 *) New function X509_POLICY_NODE_print() which prints out policy nodes.
750 *) Add new EVP function EVP_CIPHER_CTX_rand_key and associated functionality.
751 This will generate a random key of the appropriate length based on the
752 cipher context. The EVP_CIPHER can provide its own random key generation
753 routine to support keys of a specific form. This is used in the des and
754 3des routines to generate a key of the correct parity. Update S/MIME
755 code to use new functions and hence generate correct parity DES keys.
756 Add EVP_CHECK_DES_KEY #define to return an error if the key is not
757 valid (weak or incorrect parity).
760 *) Add a local set of CRLs that can be used by X509_verify_cert() as well
761 as looking them up. This is useful when the verified structure may contain
762 CRLs, for example PKCS#7 signedData. Modify PKCS7_verify() to use any CRLs
763 present unless the new PKCS7_NO_CRL flag is asserted.
766 *) Extend ASN1 oid configuration module. It now additionally accepts the
769 shortName = some long name, 1.2.3.4
772 *) Reimplemented the BN_CTX implementation. There is now no more static
773 limitation on the number of variables it can handle nor the depth of the
774 "stack" handling for BN_CTX_start()/BN_CTX_end() pairs. The stack
775 information can now expand as required, and rather than having a single
776 static array of bignums, BN_CTX now uses a linked-list of such arrays
777 allowing it to expand on demand whilst maintaining the usefulness of
781 *) Add a missing BN_CTX parameter to the 'rsa_mod_exp' callback in RSA_METHOD
782 to allow all RSA operations to function using a single BN_CTX.
785 *) Preliminary support for certificate policy evaluation and checking. This
786 is initially intended to pass the tests outlined in "Conformance Testing
787 of Relying Party Client Certificate Path Processing Logic" v1.07.
790 *) bn_dup_expand() has been deprecated, it was introduced in 0.9.7 and
791 remained unused and not that useful. A variety of other little bignum
792 tweaks and fixes have also been made continuing on from the audit (see
796 *) Constify all or almost all d2i, c2i, s2i and r2i functions, along with
797 associated ASN1, EVP and SSL functions and old ASN1 macros.
800 *) BN_zero() only needs to set 'top' and 'neg' to zero for correct results,
801 and this should never fail. So the return value from the use of
802 BN_set_word() (which can fail due to needless expansion) is now deprecated;
803 if OPENSSL_NO_DEPRECATED is defined, BN_zero() is a void macro.
806 *) BN_CTX_get() should return zero-valued bignums, providing the same
807 initialised value as BN_new().
808 [Geoff Thorpe, suggested by Ulf Möller]
810 *) Support for inhibitAnyPolicy certificate extension.
813 *) An audit of the BIGNUM code is underway, for which debugging code is
814 enabled when BN_DEBUG is defined. This makes stricter enforcements on what
815 is considered valid when processing BIGNUMs, and causes execution to
816 assert() when a problem is discovered. If BN_DEBUG_RAND is defined,
817 further steps are taken to deliberately pollute unused data in BIGNUM
818 structures to try and expose faulty code further on. For now, openssl will
819 (in its default mode of operation) continue to tolerate the inconsistent
820 forms that it has tolerated in the past, but authors and packagers should
821 consider trying openssl and their own applications when compiled with
822 these debugging symbols defined. It will help highlight potential bugs in
823 their own code, and will improve the test coverage for OpenSSL itself. At
824 some point, these tighter rules will become openssl's default to improve
825 maintainability, though the assert()s and other overheads will remain only
826 in debugging configurations. See bn.h for more details.
827 [Geoff Thorpe, Nils Larsch, Ulf Möller]
829 *) BN_CTX_init() has been deprecated, as BN_CTX is an opaque structure
830 that can only be obtained through BN_CTX_new() (which implicitly
831 initialises it). The presence of this function only made it possible
832 to overwrite an existing structure (and cause memory leaks).
835 *) Because of the callback-based approach for implementing LHASH as a
836 template type, lh_insert() adds opaque objects to hash-tables and
837 lh_doall() or lh_doall_arg() are typically used with a destructor callback
838 to clean up those corresponding objects before destroying the hash table
839 (and losing the object pointers). So some over-zealous constifications in
840 LHASH have been relaxed so that lh_insert() does not take (nor store) the
841 objects as "const" and the lh_doall[_arg] callback wrappers are not
842 prototyped to have "const" restrictions on the object pointers they are
843 given (and so aren't required to cast them away any more).
846 *) The tmdiff.h API was so ugly and minimal that our own timing utility
847 (speed) prefers to use its own implementation. The two implementations
848 haven't been consolidated as yet (volunteers?) but the tmdiff API has had
849 its object type properly exposed (MS_TM) instead of casting to/from "char
850 *". This may still change yet if someone realises MS_TM and "ms_time_***"
851 aren't necessarily the greatest nomenclatures - but this is what was used
852 internally to the implementation so I've used that for now.
855 *) Ensure that deprecated functions do not get compiled when
856 OPENSSL_NO_DEPRECATED is defined. Some "openssl" subcommands and a few of
857 the self-tests were still using deprecated key-generation functions so
858 these have been updated also.
861 *) Reorganise PKCS#7 code to separate the digest location functionality
862 into PKCS7_find_digest(), digest addtion into PKCS7_bio_add_digest().
863 New function PKCS7_set_digest() to set the digest type for PKCS#7
864 digestedData type. Add additional code to correctly generate the
865 digestedData type and add support for this type in PKCS7 initialization
869 *) New function PKCS7_set0_type_other() this initializes a PKCS7
870 structure of type "other".
873 *) Fix prime generation loop in crypto/bn/bn_prime.pl by making
874 sure the loop does correctly stop and breaking ("division by zero")
875 modulus operations are not performed. The (pre-generated) prime
876 table crypto/bn/bn_prime.h was already correct, but it could not be
877 re-generated on some platforms because of the "division by zero"
878 situation in the script.
879 [Ralf S. Engelschall]
881 *) Update support for ECC-based TLS ciphersuites according to
882 draft-ietf-tls-ecc-03.txt: the KDF1 key derivation function with
883 SHA-1 now is only used for "small" curves (where the
884 representation of a field element takes up to 24 bytes); for
885 larger curves, the field element resulting from ECDH is directly
886 used as premaster secret.
887 [Douglas Stebila (Sun Microsystems Laboratories)]
889 *) Add code for kP+lQ timings to crypto/ec/ectest.c, and add SEC2
890 curve secp160r1 to the tests.
891 [Douglas Stebila (Sun Microsystems Laboratories)]
893 *) Add the possibility to load symbols globally with DSO.
894 [Götz Babin-Ebell <babin-ebell@trustcenter.de> via Richard Levitte]
896 *) Add the functions ERR_set_mark() and ERR_pop_to_mark() for better
897 control of the error stack.
900 *) Add support for STORE in ENGINE.
903 *) Add the STORE type. The intention is to provide a common interface
904 to certificate and key stores, be they simple file-based stores, or
905 HSM-type store, or LDAP stores, or...
906 NOTE: The code is currently UNTESTED and isn't really used anywhere.
909 *) Add a generic structure called OPENSSL_ITEM. This can be used to
910 pass a list of arguments to any function as well as provide a way
911 for a function to pass data back to the caller.
914 *) Add the functions BUF_strndup() and BUF_memdup(). BUF_strndup()
915 works like BUF_strdup() but can be used to duplicate a portion of
916 a string. The copy gets NUL-terminated. BUF_memdup() duplicates
920 *) Add the function sk_find_ex() which works like sk_find(), but will
921 return an index to an element even if an exact match couldn't be
922 found. The index is guaranteed to point at the element where the
923 searched-for key would be inserted to preserve sorting order.
926 *) Add the function OBJ_bsearch_ex() which works like OBJ_bsearch() but
927 takes an extra flags argument for optional functionality. Currently,
928 the following flags are defined:
930 OBJ_BSEARCH_VALUE_ON_NOMATCH
931 This one gets OBJ_bsearch_ex() to return a pointer to the first
932 element where the comparing function returns a negative or zero
935 OBJ_BSEARCH_FIRST_VALUE_ON_MATCH
936 This one gets OBJ_bsearch_ex() to return a pointer to the first
937 element where the comparing function returns zero. This is useful
938 if there are more than one element where the comparing function
942 *) Make it possible to create self-signed certificates with 'openssl ca'
943 in such a way that the self-signed certificate becomes part of the
944 CA database and uses the same mechanisms for serial number generation
945 as all other certificate signing. The new flag '-selfsign' enables
946 this functionality. Adapt CA.sh and CA.pl.in.
949 *) Add functionality to check the public key of a certificate request
950 against a given private. This is useful to check that a certificate
951 request can be signed by that key (self-signing).
954 *) Make it possible to have multiple active certificates with the same
955 subject in the CA index file. This is done only if the keyword
956 'unique_subject' is set to 'no' in the main CA section (default
957 if 'CA_default') of the configuration file. The value is saved
958 with the database itself in a separate index attribute file,
959 named like the index file with '.attr' appended to the name.
962 *) Generate muti valued AVAs using '+' notation in config files for
966 *) Support for nameConstraints certificate extension.
969 *) Support for policyConstraints certificate extension.
972 *) Support for policyMappings certificate extension.
975 *) Make sure the default DSA_METHOD implementation only uses its
976 dsa_mod_exp() and/or bn_mod_exp() handlers if they are non-NULL,
977 and change its own handlers to be NULL so as to remove unnecessary
978 indirection. This lets alternative implementations fallback to the
979 default implementation more easily.
982 *) Support for directoryName in GeneralName related extensions
986 *) Make it possible to link applications using Makefile.shared.
987 Make that possible even when linking against static libraries!
990 *) Support for single pass processing for S/MIME signing. This now
991 means that S/MIME signing can be done from a pipe, in addition
992 cleartext signing (multipart/signed type) is effectively streaming
993 and the signed data does not need to be all held in memory.
995 This is done with a new flag PKCS7_STREAM. When this flag is set
996 PKCS7_sign() only initializes the PKCS7 structure and the actual signing
997 is done after the data is output (and digests calculated) in
1001 *) Add full support for -rpath/-R, both in shared libraries and
1002 applications, at least on the platforms where it's known how
1006 *) In crypto/ec/ec_mult.c, implement fast point multiplication with
1007 precomputation, based on wNAF splitting: EC_GROUP_precompute_mult()
1008 will now compute a table of multiples of the generator that
1009 makes subsequent invocations of EC_POINTs_mul() or EC_POINT_mul()
1010 faster (notably in the case of a single point multiplication,
1011 scalar * generator).
1012 [Nils Larsch, Bodo Moeller]
1014 *) IPv6 support for certificate extensions. The various extensions
1015 which use the IP:a.b.c.d can now take IPv6 addresses using the
1016 formats of RFC1884 2.2 . IPv6 addresses are now also displayed
1020 *) Added an ENGINE that implements RSA by performing private key
1021 exponentiations with the GMP library. The conversions to and from
1022 GMP's mpz_t format aren't optimised nor are any montgomery forms
1023 cached, and on x86 it appears OpenSSL's own performance has caught up.
1024 However there are likely to be other architectures where GMP could
1025 provide a boost. This ENGINE is not built in by default, but it can be
1026 specified at Configure time and should be accompanied by the necessary
1027 linker additions, eg;
1028 ./config -DOPENSSL_USE_GMP -lgmp
1031 *) "openssl engine" will not display ENGINE/DSO load failure errors when
1032 testing availability of engines with "-t" - the old behaviour is
1033 produced by increasing the feature's verbosity with "-tt".
1036 *) ECDSA routines: under certain error conditions uninitialized BN objects
1037 could be freed. Solution: make sure initialization is performed early
1038 enough. (Reported and fix supplied by Nils Larsch <nla@trustcenter.de>
1042 *) Key-generation can now be implemented in RSA_METHOD, DSA_METHOD
1043 and DH_METHOD (eg. by ENGINE implementations) to override the normal
1044 software implementations. For DSA and DH, parameter generation can
1045 also be overriden by providing the appropriate method callbacks.
1048 *) Change the "progress" mechanism used in key-generation and
1049 primality testing to functions that take a new BN_GENCB pointer in
1050 place of callback/argument pairs. The new API functions have "_ex"
1051 postfixes and the older functions are reimplemented as wrappers for
1052 the new ones. The OPENSSL_NO_DEPRECATED symbol can be used to hide
1053 declarations of the old functions to help (graceful) attempts to
1054 migrate to the new functions. Also, the new key-generation API
1055 functions operate on a caller-supplied key-structure and return
1056 success/failure rather than returning a key or NULL - this is to
1057 help make "keygen" another member function of RSA_METHOD etc.
1059 Example for using the new callback interface:
1061 int (*my_callback)(int a, int b, BN_GENCB *cb) = ...;
1065 BN_GENCB_set(&my_cb, my_callback, my_arg);
1067 return BN_is_prime_ex(some_bignum, BN_prime_checks, NULL, &cb);
1068 /* For the meaning of a, b in calls to my_callback(), see the
1069 * documentation of the function that calls the callback.
1070 * cb will point to my_cb; my_arg can be retrieved as cb->arg.
1071 * my_callback should return 1 if it wants BN_is_prime_ex()
1072 * to continue, or 0 to stop.
1077 *) Change the ZLIB compression method to be stateful, and make it
1078 available to TLS with the number defined in
1079 draft-ietf-tls-compression-04.txt.
1082 *) Add the ASN.1 structures and functions for CertificatePair, which
1083 is defined as follows (according to X.509_4thEditionDraftV6.pdf):
1085 CertificatePair ::= SEQUENCE {
1086 forward [0] Certificate OPTIONAL,
1087 reverse [1] Certificate OPTIONAL,
1088 -- at least one of the pair shall be present -- }
1090 Also implement the PEM functions to read and write certificate
1091 pairs, and defined the PEM tag as "CERTIFICATE PAIR".
1093 This needed to be defined, mostly for the sake of the LDAP
1094 attribute crossCertificatePair, but may prove useful elsewhere as
1098 *) Make it possible to inhibit symlinking of shared libraries in
1099 Makefile.shared, for Cygwin's sake.
1102 *) Extend the BIGNUM API by creating a function
1103 void BN_set_negative(BIGNUM *a, int neg);
1104 and a macro that behave like
1105 int BN_is_negative(const BIGNUM *a);
1107 to avoid the need to access 'a->neg' directly in applications.
1110 *) Implement fast modular reduction for pseudo-Mersenne primes
1111 used in NIST curves (crypto/bn/bn_nist.c, crypto/ec/ecp_nist.c).
1112 EC_GROUP_new_curve_GFp() will now automatically use this
1114 [Nils Larsch <nla@trustcenter.de>]
1116 *) Add new lock type (CRYPTO_LOCK_BN).
1119 *) Change the ENGINE framework to automatically load engines
1120 dynamically from specific directories unless they could be
1121 found to already be built in or loaded. Move all the
1122 current engines except for the cryptodev one to a new
1124 The engines in engines/ are built as shared libraries if
1125 the "shared" options was given to ./Configure or ./config.
1126 Otherwise, they are inserted in libcrypto.a.
1127 /usr/local/ssl/engines is the default directory for dynamic
1128 engines, but that can be overriden at configure time through
1129 the usual use of --prefix and/or --openssldir, and at run
1130 time with the environment variable OPENSSL_ENGINES.
1131 [Geoff Thorpe and Richard Levitte]
1133 *) Add Makefile.shared, a helper makefile to build shared
1134 libraries. Addapt Makefile.org.
1137 *) Add version info to Win32 DLLs.
1138 [Peter 'Luna' Runestig" <peter@runestig.com>]
1140 *) Add new 'medium level' PKCS#12 API. Certificates and keys
1141 can be added using this API to created arbitrary PKCS#12
1142 files while avoiding the low level API.
1144 New options to PKCS12_create(), key or cert can be NULL and
1145 will then be omitted from the output file. The encryption
1146 algorithm NIDs can be set to -1 for no encryption, the mac
1147 iteration count can be set to 0 to omit the mac.
1149 Enhance pkcs12 utility by making the -nokeys and -nocerts
1150 options work when creating a PKCS#12 file. New option -nomac
1151 to omit the mac, NONE can be set for an encryption algorithm.
1152 New code is modified to use the enhanced PKCS12_create()
1153 instead of the low level API.
1156 *) Extend ASN1 encoder to support indefinite length constructed
1157 encoding. This can output sequences tags and octet strings in
1158 this form. Modify pk7_asn1.c to support indefinite length
1159 encoding. This is experimental and needs additional code to
1160 be useful, such as an ASN1 bio and some enhanced streaming
1163 Extend template encode functionality so that tagging is passed
1164 down to the template encoder.
1167 *) Let 'openssl req' fail if an argument to '-newkey' is not
1168 recognized instead of using RSA as a default.
1171 *) Add support for ECC-based ciphersuites from draft-ietf-tls-ecc-01.txt.
1172 As these are not official, they are not included in "ALL";
1173 the "ECCdraft" ciphersuite group alias can be used to select them.
1174 [Vipul Gupta and Sumit Gupta (Sun Microsystems Laboratories)]
1176 *) Add ECDH engine support.
1177 [Nils Gura and Douglas Stebila (Sun Microsystems Laboratories)]
1179 *) Add ECDH in new directory crypto/ecdh/.
1180 [Douglas Stebila (Sun Microsystems Laboratories)]
1182 *) Let BN_rand_range() abort with an error after 100 iterations
1183 without success (which indicates a broken PRNG).
1186 *) Change BN_mod_sqrt() so that it verifies that the input value
1187 is really the square of the return value. (Previously,
1188 BN_mod_sqrt would show GIGO behaviour.)
1191 *) Add named elliptic curves over binary fields from X9.62, SECG,
1192 and WAP/WTLS; add OIDs that were still missing.
1194 [Sheueling Chang Shantz and Douglas Stebila
1195 (Sun Microsystems Laboratories)]
1197 *) Extend the EC library for elliptic curves over binary fields
1198 (new files ec2_smpl.c, ec2_smpt.c, ec2_mult.c in crypto/ec/).
1201 EC_GF2m_simple_method
1205 EC_GROUP_new_curve_GF2m
1206 EC_GROUP_set_curve_GF2m
1207 EC_GROUP_get_curve_GF2m
1208 EC_POINT_set_affine_coordinates_GF2m
1209 EC_POINT_get_affine_coordinates_GF2m
1210 EC_POINT_set_compressed_coordinates_GF2m
1212 Point compression for binary fields is disabled by default for
1213 patent reasons (compile with OPENSSL_EC_BIN_PT_COMP defined to
1216 As binary polynomials are represented as BIGNUMs, various members
1217 of the EC_GROUP and EC_POINT data structures can be shared
1218 between the implementations for prime fields and binary fields;
1219 the above ..._GF2m functions (except for EX_GROUP_new_curve_GF2m)
1220 are essentially identical to their ..._GFp counterparts.
1221 (For simplicity, the '..._GFp' prefix has been dropped from
1222 various internal method names.)
1224 An internal 'field_div' method (similar to 'field_mul' and
1225 'field_sqr') has been added; this is used only for binary fields.
1227 [Sheueling Chang Shantz and Douglas Stebila
1228 (Sun Microsystems Laboratories)]
1230 *) Optionally dispatch EC_POINT_mul(), EC_POINT_precompute_mult()
1231 through methods ('mul', 'precompute_mult').
1233 The generic implementations (now internally called 'ec_wNAF_mul'
1234 and 'ec_wNAF_precomputed_mult') remain the default if these
1235 methods are undefined.
1237 [Sheueling Chang Shantz and Douglas Stebila
1238 (Sun Microsystems Laboratories)]
1240 *) New function EC_GROUP_get_degree, which is defined through
1241 EC_METHOD. For curves over prime fields, this returns the bit
1242 length of the modulus.
1244 [Sheueling Chang Shantz and Douglas Stebila
1245 (Sun Microsystems Laboratories)]
1247 *) New functions EC_GROUP_dup, EC_POINT_dup.
1248 (These simply call ..._new and ..._copy).
1250 [Sheueling Chang Shantz and Douglas Stebila
1251 (Sun Microsystems Laboratories)]
1253 *) Add binary polynomial arithmetic software in crypto/bn/bn_gf2m.c.
1254 Polynomials are represented as BIGNUMs (where the sign bit is not
1255 used) in the following functions [macros]:
1258 BN_GF2m_sub [= BN_GF2m_add]
1259 BN_GF2m_mod [wrapper for BN_GF2m_mod_arr]
1260 BN_GF2m_mod_mul [wrapper for BN_GF2m_mod_mul_arr]
1261 BN_GF2m_mod_sqr [wrapper for BN_GF2m_mod_sqr_arr]
1263 BN_GF2m_mod_exp [wrapper for BN_GF2m_mod_exp_arr]
1264 BN_GF2m_mod_sqrt [wrapper for BN_GF2m_mod_sqrt_arr]
1265 BN_GF2m_mod_solve_quad [wrapper for BN_GF2m_mod_solve_quad_arr]
1266 BN_GF2m_cmp [= BN_ucmp]
1268 (Note that only the 'mod' functions are actually for fields GF(2^m).
1269 BN_GF2m_add() is misnomer, but this is for the sake of consistency.)
1271 For some functions, an the irreducible polynomial defining a
1272 field can be given as an 'unsigned int[]' with strictly
1273 decreasing elements giving the indices of those bits that are set;
1274 i.e., p[] represents the polynomial
1275 f(t) = t^p[0] + t^p[1] + ... + t^p[k]
1277 p[0] > p[1] > ... > p[k] = 0.
1278 This applies to the following functions:
1283 BN_GF2m_mod_inv_arr [wrapper for BN_GF2m_mod_inv]
1284 BN_GF2m_mod_div_arr [wrapper for BN_GF2m_mod_div]
1286 BN_GF2m_mod_sqrt_arr
1287 BN_GF2m_mod_solve_quad_arr
1291 Conversion can be performed by the following functions:
1296 bntest.c has additional tests for binary polynomial arithmetic.
1298 Two implementations for BN_GF2m_mod_div() are available.
1299 The default algorithm simply uses BN_GF2m_mod_inv() and
1300 BN_GF2m_mod_mul(). The alternative algorithm is compiled in only
1301 if OPENSSL_SUN_GF2M_DIV is defined (patent pending; read the
1302 copyright notice in crypto/bn/bn_gf2m.c before enabling it).
1304 [Sheueling Chang Shantz and Douglas Stebila
1305 (Sun Microsystems Laboratories)]
1307 *) Add new error code 'ERR_R_DISABLED' that can be used when some
1308 functionality is disabled at compile-time.
1309 [Douglas Stebila <douglas.stebila@sun.com>]
1311 *) Change default behaviour of 'openssl asn1parse' so that more
1312 information is visible when viewing, e.g., a certificate:
1314 Modify asn1_parse2 (crypto/asn1/asn1_par.c) so that in non-'dump'
1315 mode the content of non-printable OCTET STRINGs is output in a
1316 style similar to INTEGERs, but with '[HEX DUMP]' prepended to
1317 avoid the appearance of a printable string.
1318 [Nils Larsch <nla@trustcenter.de>]
1320 *) Add 'asn1_flag' and 'asn1_form' member to EC_GROUP with access
1322 EC_GROUP_set_asn1_flag()
1323 EC_GROUP_get_asn1_flag()
1324 EC_GROUP_set_point_conversion_form()
1325 EC_GROUP_get_point_conversion_form()
1326 These control ASN1 encoding details:
1327 - Curves (i.e., groups) are encoded explicitly unless asn1_flag
1328 has been set to OPENSSL_EC_NAMED_CURVE.
1329 - Points are encoded in uncompressed form by default; options for
1330 asn1_for are as for point2oct, namely
1331 POINT_CONVERSION_COMPRESSED
1332 POINT_CONVERSION_UNCOMPRESSED
1333 POINT_CONVERSION_HYBRID
1335 Also add 'seed' and 'seed_len' members to EC_GROUP with access
1338 EC_GROUP_get0_seed()
1339 EC_GROUP_get_seed_len()
1340 This is used only for ASN1 purposes (so far).
1341 [Nils Larsch <nla@trustcenter.de>]
1343 *) Add 'field_type' member to EC_METHOD, which holds the NID
1344 of the appropriate field type OID. The new function
1345 EC_METHOD_get_field_type() returns this value.
1346 [Nils Larsch <nla@trustcenter.de>]
1351 EC_POINT_point2hex()
1352 EC_POINT_hex2point()
1353 providing useful interfaces to EC_POINT_point2oct() and
1354 EC_POINT_oct2point().
1355 [Nils Larsch <nla@trustcenter.de>]
1357 *) Change internals of the EC library so that the functions
1358 EC_GROUP_set_generator()
1359 EC_GROUP_get_generator()
1360 EC_GROUP_get_order()
1361 EC_GROUP_get_cofactor()
1362 are implemented directly in crypto/ec/ec_lib.c and not dispatched
1363 to methods, which would lead to unnecessary code duplication when
1364 adding different types of curves.
1365 [Nils Larsch <nla@trustcenter.de> with input by Bodo Moeller]
1367 *) Implement compute_wNAF (crypto/ec/ec_mult.c) without BIGNUM
1368 arithmetic, and such that modified wNAFs are generated
1369 (which avoid length expansion in many cases).
1372 *) Add a function EC_GROUP_check_discriminant() (defined via
1373 EC_METHOD) that verifies that the curve discriminant is non-zero.
1375 Add a function EC_GROUP_check() that makes some sanity tests
1376 on a EC_GROUP, its generator and order. This includes
1377 EC_GROUP_check_discriminant().
1378 [Nils Larsch <nla@trustcenter.de>]
1380 *) Add ECDSA in new directory crypto/ecdsa/.
1382 Add applications 'openssl ecparam' and 'openssl ecdsa'
1383 (these are based on 'openssl dsaparam' and 'openssl dsa').
1385 ECDSA support is also included in various other files across the
1386 library. Most notably,
1387 - 'openssl req' now has a '-newkey ecdsa:file' option;
1388 - EVP_PKCS82PKEY (crypto/evp/evp_pkey.c) now can handle ECDSA;
1389 - X509_PUBKEY_get (crypto/asn1/x_pubkey.c) and
1390 d2i_PublicKey (crypto/asn1/d2i_pu.c) have been modified to make
1391 them suitable for ECDSA where domain parameters must be
1392 extracted before the specific public key;
1393 - ECDSA engine support has been added.
1394 [Nils Larsch <nla@trustcenter.de>]
1396 *) Include some named elliptic curves, and add OIDs from X9.62,
1397 SECG, and WAP/WTLS. Each curve can be obtained from the new
1399 EC_GROUP_new_by_curve_name(),
1400 and the list of available named curves can be obtained with
1401 EC_get_builtin_curves().
1402 Also add a 'curve_name' member to EC_GROUP objects, which can be
1404 EC_GROUP_set_curve_name()
1405 EC_GROUP_get_curve_name()
1406 [Nils Larsch <larsch@trustcenter.de, Bodo Moeller]
1408 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
1409 was actually never needed) and in BN_mul(). The removal in BN_mul()
1410 required a small change in bn_mul_part_recursive() and the addition
1411 of the functions bn_cmp_part_words(), bn_sub_part_words() and
1412 bn_add_part_words(), which do the same thing as bn_cmp_words(),
1413 bn_sub_words() and bn_add_words() except they take arrays with
1417 Changes between 0.9.7m and 0.9.7n [xx XXX xxxx]
1419 *) In the SSL/TLS server implementation, be strict about session ID
1420 context matching (which matters if an application uses a single
1421 external cache for different purposes). Previously,
1422 out-of-context reuse was forbidden only if SSL_VERIFY_PEER was
1423 set. This did ensure strict client verification, but meant that,
1424 with applications using a single external cache for quite
1425 different requirements, clients could circumvent ciphersuite
1426 restrictions for a given session ID context by starting a session
1427 in a different context.
1430 Changes between 0.9.7l and 0.9.7m [23 Feb 2007]
1432 *) Cleanse PEM buffers before freeing them since they may contain
1434 [Benjamin Bennett <ben@psc.edu>]
1436 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
1437 a ciphersuite string such as "DEFAULT:RSA" cannot enable
1438 authentication-only ciphersuites.
1441 *) Since AES128 and AES256 share a single mask bit in the logic of
1442 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
1443 kludge to work properly if AES128 is available and AES256 isn't.
1446 *) Expand security boundary to match 1.1.1 module.
1449 *) Remove redundant features: hash file source, editing of test vectors
1450 modify fipsld to use external fips_premain.c signature.
1453 *) New perl script mkfipsscr.pl to create shell scripts or batch files to
1454 run algorithm test programs.
1457 *) Make algorithm test programs more tolerant of whitespace.
1460 *) Have SSL/TLS server implementation tolerate "mismatched" record
1461 protocol version while receiving ClientHello even if the
1462 ClientHello is fragmented. (The server can't insist on the
1463 particular protocol version it has chosen before the ServerHello
1464 message has informed the client about his choice.)
1467 *) Load error codes if they are not already present instead of using a
1468 static variable. This allows them to be cleanly unloaded and reloaded.
1471 Changes between 0.9.7k and 0.9.7l [28 Sep 2006]
1473 *) Introduce limits to prevent malicious keys being able to
1474 cause a denial of service. (CVE-2006-2940)
1475 [Steve Henson, Bodo Moeller]
1477 *) Fix ASN.1 parsing of certain invalid structures that can result
1478 in a denial of service. (CVE-2006-2937) [Steve Henson]
1480 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
1481 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
1483 *) Fix SSL client code which could crash if connecting to a
1484 malicious SSLv2 server. (CVE-2006-4343)
1485 [Tavis Ormandy and Will Drewry, Google Security Team]
1487 *) Change ciphersuite string processing so that an explicit
1488 ciphersuite selects this one ciphersuite (so that "AES256-SHA"
1489 will no longer include "AES128-SHA"), and any other similar
1490 ciphersuite (same bitmap) from *other* protocol versions (so that
1491 "RC4-MD5" will still include both the SSL 2.0 ciphersuite and the
1492 SSL 3.0/TLS 1.0 ciphersuite). This is a backport combining
1493 changes from 0.9.8b and 0.9.8d.
1496 Changes between 0.9.7j and 0.9.7k [05 Sep 2006]
1498 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
1499 (CVE-2006-4339) [Ben Laurie and Google Security Team]
1501 *) Change the Unix randomness entropy gathering to use poll() when
1502 possible instead of select(), since the latter has some
1503 undesirable limitations.
1504 [Darryl Miles via Richard Levitte and Bodo Moeller]
1506 *) Disable rogue ciphersuites:
1508 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
1509 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
1510 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
1512 The latter two were purportedly from
1513 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
1516 Also deactive the remaining ciphersuites from
1517 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
1518 unofficial, and the ID has long expired.
1521 *) Fix RSA blinding Heisenbug (problems sometimes occured on
1522 dual-core machines) and other potential thread-safety issues.
1525 Changes between 0.9.7i and 0.9.7j [04 May 2006]
1527 *) Adapt fipsld and the build system to link against the validated FIPS
1528 module in FIPS mode.
1531 *) Fixes for VC++ 2005 build under Windows.
1534 *) Add new Windows build target VC-32-GMAKE for VC++. This uses GNU make
1535 from a Windows bash shell such as MSYS. It is autodetected from the
1536 "config" script when run from a VC++ environment. Modify standard VC++
1537 build to use fipscanister.o from the GNU make build.
1540 Changes between 0.9.7h and 0.9.7i [14 Oct 2005]
1542 *) Wrapped the definition of EVP_MAX_MD_SIZE in a #ifdef OPENSSL_FIPS.
1543 The value now differs depending on if you build for FIPS or not.
1544 BEWARE! A program linked with a shared FIPSed libcrypto can't be
1545 safely run with a non-FIPSed libcrypto, as it may crash because of
1546 the difference induced by this change.
1549 Changes between 0.9.7g and 0.9.7h [11 Oct 2005]
1551 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
1552 (part of SSL_OP_ALL). This option used to disable the
1553 countermeasure against man-in-the-middle protocol-version
1554 rollback in the SSL 2.0 server implementation, which is a bad
1555 idea. (CVE-2005-2969)
1557 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
1558 for Information Security, National Institute of Advanced Industrial
1559 Science and Technology [AIST], Japan)]
1561 *) Minimal support for X9.31 signatures and PSS padding modes. This is
1562 mainly for FIPS compliance and not fully integrated at this stage.
1565 *) For DSA signing, unless DSA_FLAG_NO_EXP_CONSTTIME is set, perform
1566 the exponentiation using a fixed-length exponent. (Otherwise,
1567 the information leaked through timing could expose the secret key
1568 after many signatures; cf. Bleichenbacher's attack on DSA with
1572 *) Make a new fixed-window mod_exp implementation the default for
1573 RSA, DSA, and DH private-key operations so that the sequence of
1574 squares and multiplies and the memory access pattern are
1575 independent of the particular secret key. This will mitigate
1576 cache-timing and potential related attacks.
1578 BN_mod_exp_mont_consttime() is the new exponentiation implementation,
1579 and this is automatically used by BN_mod_exp_mont() if the new flag
1580 BN_FLG_EXP_CONSTTIME is set for the exponent. RSA, DSA, and DH
1581 will use this BN flag for private exponents unless the flag
1582 RSA_FLAG_NO_EXP_CONSTTIME, DSA_FLAG_NO_EXP_CONSTTIME, or
1583 DH_FLAG_NO_EXP_CONSTTIME, respectively, is set.
1585 [Matthew D Wood (Intel Corp), with some changes by Bodo Moeller]
1587 *) Change the client implementation for SSLv23_method() and
1588 SSLv23_client_method() so that is uses the SSL 3.0/TLS 1.0
1589 Client Hello message format if the SSL_OP_NO_SSLv2 option is set.
1590 (Previously, the SSL 2.0 backwards compatible Client Hello
1591 message format would be used even with SSL_OP_NO_SSLv2.)
1594 *) Add support for smime-type MIME parameter in S/MIME messages which some
1598 *) New function BN_MONT_CTX_set_locked() to set montgomery parameters in
1599 a threadsafe manner. Modify rsa code to use new function and add calls
1600 to dsa and dh code (which had race conditions before).
1603 *) Include the fixed error library code in the C error file definitions
1604 instead of fixing them up at runtime. This keeps the error code
1605 structures constant.
1608 Changes between 0.9.7f and 0.9.7g [11 Apr 2005]
1610 [NB: OpenSSL 0.9.7h and later 0.9.7 patch levels were released after
1613 *) Fixes for newer kerberos headers. NB: the casts are needed because
1614 the 'length' field is signed on one version and unsigned on another
1615 with no (?) obvious way to tell the difference, without these VC++
1616 complains. Also the "definition" of FAR (blank) is no longer included
1617 nor is the error ENOMEM. KRB5_PRIVATE has to be set to 1 to pick up
1618 some needed definitions.
1621 *) Undo Cygwin change.
1624 *) Added support for proxy certificates according to RFC 3820.
1625 Because they may be a security thread to unaware applications,
1626 they must be explicitely allowed in run-time. See
1627 docs/HOWTO/proxy_certificates.txt for further information.
1630 Changes between 0.9.7e and 0.9.7f [22 Mar 2005]
1632 *) Use (SSL_RANDOM_VALUE - 4) bytes of pseudo random data when generating
1633 server and client random values. Previously
1634 (SSL_RANDOM_VALUE - sizeof(time_t)) would be used which would result in
1635 less random data when sizeof(time_t) > 4 (some 64 bit platforms).
1637 This change has negligible security impact because:
1639 1. Server and client random values still have 24 bytes of pseudo random
1642 2. Server and client random values are sent in the clear in the initial
1645 3. The master secret is derived using the premaster secret (48 bytes in
1646 size for static RSA ciphersuites) as well as client server and random
1649 The OpenSSL team would like to thank the UK NISCC for bringing this issue
1652 [Stephen Henson, reported by UK NISCC]
1654 *) Use Windows randomness collection on Cygwin.
1657 *) Fix hang in EGD/PRNGD query when communication socket is closed
1658 prematurely by EGD/PRNGD.
1659 [Darren Tucker <dtucker@zip.com.au> via Lutz Jänicke, resolves #1014]
1661 *) Prompt for pass phrases when appropriate for PKCS12 input format.
1664 *) Back-port of selected performance improvements from development
1665 branch, as well as improved support for PowerPC platforms.
1668 *) Add lots of checks for memory allocation failure, error codes to indicate
1669 failure and freeing up memory if a failure occurs.
1670 [Nauticus Networks SSL Team <openssl@nauticusnet.com>, Steve Henson]
1672 *) Add new -passin argument to dgst.
1675 *) Perform some character comparisons of different types in X509_NAME_cmp:
1676 this is needed for some certificates that reencode DNs into UTF8Strings
1677 (in violation of RFC3280) and can't or wont issue name rollover
1681 *) Make an explicit check during certificate validation to see that
1682 the CA setting in each certificate on the chain is correct. As a
1683 side effect always do the following basic checks on extensions,
1684 not just when there's an associated purpose to the check:
1686 - if there is an unhandled critical extension (unless the user
1687 has chosen to ignore this fault)
1688 - if the path length has been exceeded (if one is set at all)
1689 - that certain extensions fit the associated purpose (if one has
1693 Changes between 0.9.7d and 0.9.7e [25 Oct 2004]
1695 *) Avoid a race condition when CRLs are checked in a multi threaded
1696 environment. This would happen due to the reordering of the revoked
1697 entries during signature checking and serial number lookup. Now the
1698 encoding is cached and the serial number sort performed under a lock.
1699 Add new STACK function sk_is_sorted().
1702 *) Add Delta CRL to the extension code.
1705 *) Various fixes to s3_pkt.c so alerts are sent properly.
1706 [David Holmes <d.holmes@f5.com>]
1708 *) Reduce the chances of duplicate issuer name and serial numbers (in
1709 violation of RFC3280) using the OpenSSL certificate creation utilities.
1710 This is done by creating a random 64 bit value for the initial serial
1711 number when a serial number file is created or when a self signed
1712 certificate is created using 'openssl req -x509'. The initial serial
1713 number file is created using 'openssl x509 -next_serial' in CA.pl
1714 rather than being initialized to 1.
1717 Changes between 0.9.7c and 0.9.7d [17 Mar 2004]
1719 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
1720 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
1721 [Joe Orton, Steve Henson]
1723 *) Fix flaw in SSL/TLS handshaking when using Kerberos ciphersuites
1725 [Joe Orton, Steve Henson]
1727 *) Make it possible to have multiple active certificates with the same
1728 subject in the CA index file. This is done only if the keyword
1729 'unique_subject' is set to 'no' in the main CA section (default
1730 if 'CA_default') of the configuration file. The value is saved
1731 with the database itself in a separate index attribute file,
1732 named like the index file with '.attr' appended to the name.
1735 *) X509 verify fixes. Disable broken certificate workarounds when
1736 X509_V_FLAGS_X509_STRICT is set. Check CRL issuer has cRLSign set if
1737 keyUsage extension present. Don't accept CRLs with unhandled critical
1738 extensions: since verify currently doesn't process CRL extensions this
1739 rejects a CRL with *any* critical extensions. Add new verify error codes
1743 *) When creating an OCSP nonce use an OCTET STRING inside the extnValue.
1744 A clarification of RFC2560 will require the use of OCTET STRINGs and
1745 some implementations cannot handle the current raw format. Since OpenSSL
1746 copies and compares OCSP nonces as opaque blobs without any attempt at
1747 parsing them this should not create any compatibility issues.
1750 *) New md flag EVP_MD_CTX_FLAG_REUSE this allows md_data to be reused when
1751 calling EVP_MD_CTX_copy_ex() to avoid calling OPENSSL_malloc(). Without
1752 this HMAC (and other) operations are several times slower than OpenSSL
1756 *) Print out GeneralizedTime and UTCTime in ASN1_STRING_print_ex().
1757 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
1759 *) Use the correct content when signing type "other".
1762 Changes between 0.9.7b and 0.9.7c [30 Sep 2003]
1764 *) Fix various bugs revealed by running the NISCC test suite:
1766 Stop out of bounds reads in the ASN1 code when presented with
1767 invalid tags (CVE-2003-0543 and CVE-2003-0544).
1769 Free up ASN1_TYPE correctly if ANY type is invalid (CVE-2003-0545).
1771 If verify callback ignores invalid public key errors don't try to check
1772 certificate signature with the NULL public key.
1776 *) New -ignore_err option in ocsp application to stop the server
1777 exiting on the first error in a request.
1780 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
1781 if the server requested one: as stated in TLS 1.0 and SSL 3.0
1785 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
1786 extra data after the compression methods not only for TLS 1.0
1787 but also for SSL 3.0 (as required by the specification).
1788 [Bodo Moeller; problem pointed out by Matthias Loepfe]
1790 *) Change X509_certificate_type() to mark the key as exported/exportable
1791 when it's 512 *bits* long, not 512 bytes.
1794 *) Change AES_cbc_encrypt() so it outputs exact multiple of
1795 blocks during encryption.
1798 *) Various fixes to base64 BIO and non blocking I/O. On write
1799 flushes were not handled properly if the BIO retried. On read
1800 data was not being buffered properly and had various logic bugs.
1801 This also affects blocking I/O when the data being decoded is a
1805 *) Various S/MIME bugfixes and compatibility changes:
1806 output correct application/pkcs7 MIME type if
1807 PKCS7_NOOLDMIMETYPE is set. Tolerate some broken signatures.
1808 Output CR+LF for EOL if PKCS7_CRLFEOL is set (this makes opening
1809 of files as .eml work). Correctly handle very long lines in MIME
1813 Changes between 0.9.7a and 0.9.7b [10 Apr 2003]
1815 *) Countermeasure against the Klima-Pokorny-Rosa extension of
1816 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
1817 a protocol version number mismatch like a decryption error
1818 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
1821 *) Turn on RSA blinding by default in the default implementation
1822 to avoid a timing attack. Applications that don't want it can call
1823 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
1824 They would be ill-advised to do so in most cases.
1825 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
1827 *) Change RSA blinding code so that it works when the PRNG is not
1828 seeded (in this case, the secret RSA exponent is abused as
1829 an unpredictable seed -- if it is not unpredictable, there
1830 is no point in blinding anyway). Make RSA blinding thread-safe
1831 by remembering the creator's thread ID in rsa->blinding and
1832 having all other threads use local one-time blinding factors
1833 (this requires more computation than sharing rsa->blinding, but
1834 avoids excessive locking; and if an RSA object is not shared
1835 between threads, blinding will still be very fast).
1838 *) Fixed a typo bug that would cause ENGINE_set_default() to set an
1839 ENGINE as defaults for all supported algorithms irrespective of
1840 the 'flags' parameter. 'flags' is now honoured, so applications
1841 should make sure they are passing it correctly.
1844 *) Target "mingw" now allows native Windows code to be generated in
1845 the Cygwin environment as well as with the MinGW compiler.
1848 Changes between 0.9.7 and 0.9.7a [19 Feb 2003]
1850 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
1851 via timing by performing a MAC computation even if incorrrect
1852 block cipher padding has been found. This is a countermeasure
1853 against active attacks where the attacker has to distinguish
1854 between bad padding and a MAC verification error. (CVE-2003-0078)
1856 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
1857 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
1858 Martin Vuagnoux (EPFL, Ilion)]
1860 *) Make the no-err option work as intended. The intention with no-err
1861 is not to have the whole error stack handling routines removed from
1862 libcrypto, it's only intended to remove all the function name and
1863 reason texts, thereby removing some of the footprint that may not
1864 be interesting if those errors aren't displayed anyway.
1866 NOTE: it's still possible for any application or module to have it's
1867 own set of error texts inserted. The routines are there, just not
1868 used by default when no-err is given.
1871 *) Add support for FreeBSD on IA64.
1872 [dirk.meyer@dinoex.sub.org via Richard Levitte, resolves #454]
1874 *) Adjust DES_cbc_cksum() so it returns the same value as the MIT
1875 Kerberos function mit_des_cbc_cksum(). Before this change,
1876 the value returned by DES_cbc_cksum() was like the one from
1877 mit_des_cbc_cksum(), except the bytes were swapped.
1878 [Kevin Greaney <Kevin.Greaney@hp.com> and Richard Levitte]
1880 *) Allow an application to disable the automatic SSL chain building.
1881 Before this a rather primitive chain build was always performed in
1882 ssl3_output_cert_chain(): an application had no way to send the
1883 correct chain if the automatic operation produced an incorrect result.
1885 Now the chain builder is disabled if either:
1887 1. Extra certificates are added via SSL_CTX_add_extra_chain_cert().
1889 2. The mode flag SSL_MODE_NO_AUTO_CHAIN is set.
1891 The reasoning behind this is that an application would not want the
1892 auto chain building to take place if extra chain certificates are
1893 present and it might also want a means of sending no additional
1894 certificates (for example the chain has two certificates and the
1898 *) Add the possibility to build without the ENGINE framework.
1899 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
1901 *) Under Win32 gmtime() can return NULL: check return value in
1902 OPENSSL_gmtime(). Add error code for case where gmtime() fails.
1905 *) DSA routines: under certain error conditions uninitialized BN objects
1906 could be freed. Solution: make sure initialization is performed early
1907 enough. (Reported and fix supplied by Ivan D Nestlerode <nestler@MIT.EDU>,
1908 Nils Larsch <nla@trustcenter.de> via PR#459)
1911 *) Another fix for SSLv2 session ID handling: the session ID was incorrectly
1912 checked on reconnect on the client side, therefore session resumption
1913 could still fail with a "ssl session id is different" error. This
1914 behaviour is masked when SSL_OP_ALL is used due to
1915 SSL_OP_MICROSOFT_SESS_ID_BUG being set.
1916 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
1917 followup to PR #377.
1920 *) IA-32 assembler support enhancements: unified ELF targets, support
1921 for SCO/Caldera platforms, fix for Cygwin shared build.
1924 *) Add support for FreeBSD on sparc64. As a consequence, support for
1925 FreeBSD on non-x86 processors is separate from x86 processors on
1926 the config script, much like the NetBSD support.
1927 [Richard Levitte & Kris Kennaway <kris@obsecurity.org>]
1929 Changes between 0.9.6h and 0.9.7 [31 Dec 2002]
1931 [NB: OpenSSL 0.9.6i and later 0.9.6 patch levels were released after
1934 *) Fix session ID handling in SSLv2 client code: the SERVER FINISHED
1935 code (06) was taken as the first octet of the session ID and the last
1936 octet was ignored consequently. As a result SSLv2 client side session
1937 caching could not have worked due to the session ID mismatch between
1939 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
1943 *) Change the declaration of needed Kerberos libraries to use EX_LIBS
1944 instead of the special (and badly supported) LIBKRB5. LIBKRB5 is
1948 *) The hw_ncipher.c engine requires dynamic locks. Unfortunately, it
1949 seems that in spite of existing for more than a year, many application
1950 author have done nothing to provide the necessary callbacks, which
1951 means that this particular engine will not work properly anywhere.
1952 This is a very unfortunate situation which forces us, in the name
1953 of usability, to give the hw_ncipher.c a static lock, which is part
1955 NOTE: This is for the 0.9.7 series ONLY. This hack will never
1956 appear in 0.9.8 or later. We EXPECT application authors to have
1957 dealt properly with this when 0.9.8 is released (unless we actually
1958 make such changes in the libcrypto locking code that changes will
1959 have to be made anyway).
1962 *) In asn1_d2i_read_bio() repeatedly call BIO_read() until all content
1963 octets have been read, EOF or an error occurs. Without this change
1964 some truncated ASN1 structures will not produce an error.
1967 *) Disable Heimdal support, since it hasn't been fully implemented.
1968 Still give the possibility to force the use of Heimdal, but with
1969 warnings and a request that patches get sent to openssl-dev.
1972 *) Add the VC-CE target, introduce the WINCE sysname, and add
1973 INSTALL.WCE and appropriate conditionals to make it build.
1974 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
1976 *) Change the DLL names for Cygwin to cygcrypto-x.y.z.dll and
1977 cygssl-x.y.z.dll, where x, y and z are the major, minor and
1978 edit numbers of the version.
1979 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
1981 *) Introduce safe string copy and catenation functions
1982 (BUF_strlcpy() and BUF_strlcat()).
1983 [Ben Laurie (CHATS) and Richard Levitte]
1985 *) Avoid using fixed-size buffers for one-line DNs.
1986 [Ben Laurie (CHATS)]
1988 *) Add BUF_MEM_grow_clean() to avoid information leakage when
1989 resizing buffers containing secrets, and use where appropriate.
1990 [Ben Laurie (CHATS)]
1992 *) Avoid using fixed size buffers for configuration file location.
1993 [Ben Laurie (CHATS)]
1995 *) Avoid filename truncation for various CA files.
1996 [Ben Laurie (CHATS)]
1998 *) Use sizeof in preference to magic numbers.
1999 [Ben Laurie (CHATS)]
2001 *) Avoid filename truncation in cert requests.
2002 [Ben Laurie (CHATS)]
2004 *) Add assertions to check for (supposedly impossible) buffer
2006 [Ben Laurie (CHATS)]
2008 *) Don't cache truncated DNS entries in the local cache (this could
2009 potentially lead to a spoofing attack).
2010 [Ben Laurie (CHATS)]
2012 *) Fix various buffers to be large enough for hex/decimal
2013 representations in a platform independent manner.
2014 [Ben Laurie (CHATS)]
2016 *) Add CRYPTO_realloc_clean() to avoid information leakage when
2017 resizing buffers containing secrets, and use where appropriate.
2018 [Ben Laurie (CHATS)]
2020 *) Add BIO_indent() to avoid much slightly worrying code to do
2022 [Ben Laurie (CHATS)]
2024 *) Convert sprintf()/BIO_puts() to BIO_printf().
2025 [Ben Laurie (CHATS)]
2027 *) buffer_gets() could terminate with the buffer only half
2029 [Ben Laurie (CHATS)]
2031 *) Add assertions to prevent user-supplied crypto functions from
2032 overflowing internal buffers by having large block sizes, etc.
2033 [Ben Laurie (CHATS)]
2035 *) New OPENSSL_assert() macro (similar to assert(), but enabled
2037 [Ben Laurie (CHATS)]
2039 *) Eliminate unused copy of key in RC4.
2040 [Ben Laurie (CHATS)]
2042 *) Eliminate unused and incorrectly sized buffers for IV in pem.h.
2043 [Ben Laurie (CHATS)]
2045 *) Fix off-by-one error in EGD path.
2046 [Ben Laurie (CHATS)]
2048 *) If RANDFILE path is too long, ignore instead of truncating.
2049 [Ben Laurie (CHATS)]
2051 *) Eliminate unused and incorrectly sized X.509 structure
2053 [Ben Laurie (CHATS)]
2055 *) Eliminate unused and dangerous function knumber().
2056 [Ben Laurie (CHATS)]
2058 *) Eliminate unused and dangerous structure, KSSL_ERR.
2059 [Ben Laurie (CHATS)]
2061 *) Protect against overlong session ID context length in an encoded
2062 session object. Since these are local, this does not appear to be
2064 [Ben Laurie (CHATS)]
2066 *) Change from security patch (see 0.9.6e below) that did not affect
2067 the 0.9.6 release series:
2069 Remote buffer overflow in SSL3 protocol - an attacker could
2070 supply an oversized master key in Kerberos-enabled versions.
2072 [Ben Laurie (CHATS)]
2074 *) Change the SSL kerb5 codes to match RFC 2712.
2077 *) Make -nameopt work fully for req and add -reqopt switch.
2078 [Michael Bell <michael.bell@rz.hu-berlin.de>, Steve Henson]
2080 *) The "block size" for block ciphers in CFB and OFB mode should be 1.
2081 [Steve Henson, reported by Yngve Nysaeter Pettersen <yngve@opera.com>]
2083 *) Make sure tests can be performed even if the corresponding algorithms
2084 have been removed entirely. This was also the last step to make
2085 OpenSSL compilable with DJGPP under all reasonable conditions.
2086 [Richard Levitte, Doug Kaufman <dkaufman@rahul.net>]
2088 *) Add cipher selection rules COMPLEMENTOFALL and COMPLEMENTOFDEFAULT
2089 to allow version independent disabling of normally unselected ciphers,
2090 which may be activated as a side-effect of selecting a single cipher.
2092 (E.g., cipher list string "RSA" enables ciphersuites that are left
2093 out of "ALL" because they do not provide symmetric encryption.
2094 "RSA:!COMPLEMEMENTOFALL" avoids these unsafe ciphersuites.)
2095 [Lutz Jaenicke, Bodo Moeller]
2097 *) Add appropriate support for separate platform-dependent build
2098 directories. The recommended way to make a platform-dependent
2099 build directory is the following (tested on Linux), maybe with
2102 # Place yourself outside of the OpenSSL source tree. In
2103 # this example, the environment variable OPENSSL_SOURCE
2104 # is assumed to contain the absolute OpenSSL source directory.
2105 mkdir -p objtree/"`uname -s`-`uname -r`-`uname -m`"
2106 cd objtree/"`uname -s`-`uname -r`-`uname -m`"
2107 (cd $OPENSSL_SOURCE; find . -type f) | while read F; do
2108 mkdir -p `dirname $F`
2109 ln -s $OPENSSL_SOURCE/$F $F
2112 To be absolutely sure not to disturb the source tree, a "make clean"
2113 is a good thing. If it isn't successfull, don't worry about it,
2114 it probably means the source directory is very clean.
2117 *) Make sure any ENGINE control commands make local copies of string
2118 pointers passed to them whenever necessary. Otherwise it is possible
2119 the caller may have overwritten (or deallocated) the original string
2120 data when a later ENGINE operation tries to use the stored values.
2121 [Götz Babin-Ebell <babinebell@trustcenter.de>]
2123 *) Improve diagnostics in file reading and command-line digests.
2124 [Ben Laurie aided and abetted by Solar Designer <solar@openwall.com>]
2126 *) Add AES modes CFB and OFB to the object database. Correct an
2127 error in AES-CFB decryption.
2130 *) Remove most calls to EVP_CIPHER_CTX_cleanup() in evp_enc.c, this
2131 allows existing EVP_CIPHER_CTX structures to be reused after
2132 calling EVP_*Final(). This behaviour is used by encryption
2133 BIOs and some applications. This has the side effect that
2134 applications must explicitly clean up cipher contexts with
2135 EVP_CIPHER_CTX_cleanup() or they will leak memory.
2138 *) Check the values of dna and dnb in bn_mul_recursive before calling
2139 bn_mul_comba (a non zero value means the a or b arrays do not contain
2140 n2 elements) and fallback to bn_mul_normal if either is not zero.
2143 *) Fix escaping of non-ASCII characters when using the -subj option
2144 of the "openssl req" command line tool. (Robert Joop <joop@fokus.gmd.de>)
2147 *) Make object definitions compliant to LDAP (RFC2256): SN is the short
2148 form for "surname", serialNumber has no short form.
2149 Use "mail" as the short name for "rfc822Mailbox" according to RFC2798;
2150 therefore remove "mail" short name for "internet 7".
2151 The OID for unique identifiers in X509 certificates is
2152 x500UniqueIdentifier, not uniqueIdentifier.
2153 Some more OID additions. (Michael Bell <michael.bell@rz.hu-berlin.de>)
2156 *) Add an "init" command to the ENGINE config module and auto initialize
2157 ENGINEs. Without any "init" command the ENGINE will be initialized
2158 after all ctrl commands have been executed on it. If init=1 the
2159 ENGINE is initailized at that point (ctrls before that point are run
2160 on the uninitialized ENGINE and after on the initialized one). If
2161 init=0 then the ENGINE will not be iniatialized at all.
2164 *) Fix the 'app_verify_callback' interface so that the user-defined
2165 argument is actually passed to the callback: In the
2166 SSL_CTX_set_cert_verify_callback() prototype, the callback
2167 declaration has been changed from
2170 int (*cb)(X509_STORE_CTX *,void *);
2171 in ssl_verify_cert_chain (ssl/ssl_cert.c), the call
2172 i=s->ctx->app_verify_callback(&ctx)
2173 has been changed into
2174 i=s->ctx->app_verify_callback(&ctx, s->ctx->app_verify_arg).
2176 To update applications using SSL_CTX_set_cert_verify_callback(),
2177 a dummy argument can be added to their callback functions.
2178 [D. K. Smetters <smetters@parc.xerox.com>]
2180 *) Added the '4758cca' ENGINE to support IBM 4758 cards.
2181 [Maurice Gittens <maurice@gittens.nl>, touchups by Geoff Thorpe]
2183 *) Add and OPENSSL_LOAD_CONF define which will cause
2184 OpenSSL_add_all_algorithms() to load the openssl.cnf config file.
2185 This allows older applications to transparently support certain
2186 OpenSSL features: such as crypto acceleration and dynamic ENGINE loading.
2187 Two new functions OPENSSL_add_all_algorithms_noconf() which will never
2188 load the config file and OPENSSL_add_all_algorithms_conf() which will
2189 always load it have also been added.
2192 *) Add the OFB, CFB and CTR (all with 128 bit feedback) to AES.
2193 Adjust NIDs and EVP layer.
2194 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
2196 *) Config modules support in openssl utility.
2198 Most commands now load modules from the config file,
2199 though in a few (such as version) this isn't done
2200 because it couldn't be used for anything.
2202 In the case of ca and req the config file used is
2203 the same as the utility itself: that is the -config
2204 command line option can be used to specify an
2208 *) Move default behaviour from OPENSSL_config(). If appname is NULL
2209 use "openssl_conf" if filename is NULL use default openssl config file.
2212 *) Add an argument to OPENSSL_config() to allow the use of an alternative
2213 config section name. Add a new flag to tolerate a missing config file
2214 and move code to CONF_modules_load_file().
2217 *) Support for crypto accelerator cards from Accelerated Encryption
2218 Processing, www.aep.ie. (Use engine 'aep')
2219 The support was copied from 0.9.6c [engine] and adapted/corrected
2220 to work with the new engine framework.
2221 [AEP Inc. and Richard Levitte]
2223 *) Support for SureWare crypto accelerator cards from Baltimore
2224 Technologies. (Use engine 'sureware')
2225 The support was copied from 0.9.6c [engine] and adapted
2226 to work with the new engine framework.
2229 *) Have the CHIL engine fork-safe (as defined by nCipher) and actually
2230 make the newer ENGINE framework commands for the CHIL engine work.
2231 [Toomas Kiisk <vix@cyber.ee> and Richard Levitte]
2233 *) Make it possible to produce shared libraries on ReliantUNIX.
2234 [Robert Dahlem <Robert.Dahlem@ffm2.siemens.de> via Richard Levitte]
2236 *) Add the configuration target debug-linux-ppro.
2237 Make 'openssl rsa' use the general key loading routines
2238 implemented in apps.c, and make those routines able to
2239 handle the key format FORMAT_NETSCAPE and the variant
2241 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
2243 *) Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
2244 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
2246 *) Add -keyform to rsautl, and document -engine.
2247 [Richard Levitte, inspired by Toomas Kiisk <vix@cyber.ee>]
2249 *) Change BIO_new_file (crypto/bio/bss_file.c) to use new
2250 BIO_R_NO_SUCH_FILE error code rather than the generic
2251 ERR_R_SYS_LIB error code if fopen() fails with ENOENT.
2254 *) Add new functions
2256 ERR_peek_last_error_line
2257 ERR_peek_last_error_line_data.
2258 These are similar to
2261 ERR_peek_error_line_data,
2262 but report on the latest error recorded rather than the first one
2263 still in the error queue.
2264 [Ben Laurie, Bodo Moeller]
2266 *) default_algorithms option in ENGINE config module. This allows things
2268 default_algorithms = ALL
2269 default_algorithms = RSA, DSA, RAND, CIPHERS, DIGESTS
2272 *) Prelminary ENGINE config module.
2275 *) New experimental application configuration code.
2278 *) Change the AES code to follow the same name structure as all other
2279 symmetric ciphers, and behave the same way. Move everything to
2280 the directory crypto/aes, thereby obsoleting crypto/rijndael.
2281 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
2283 *) SECURITY: remove unsafe setjmp/signal interaction from ui_openssl.c.
2284 [Ben Laurie and Theo de Raadt]
2286 *) Add option to output public keys in req command.
2287 [Massimiliano Pala madwolf@openca.org]
2289 *) Use wNAFs in EC_POINTs_mul() for improved efficiency
2290 (up to about 10% better than before for P-192 and P-224).
2293 *) New functions/macros
2295 SSL_CTX_set_msg_callback(ctx, cb)
2296 SSL_CTX_set_msg_callback_arg(ctx, arg)
2297 SSL_set_msg_callback(ssl, cb)
2298 SSL_set_msg_callback_arg(ssl, arg)
2300 to request calling a callback function
2302 void cb(int write_p, int version, int content_type,
2303 const void *buf, size_t len, SSL *ssl, void *arg)
2305 whenever a protocol message has been completely received
2306 (write_p == 0) or sent (write_p == 1). Here 'version' is the
2307 protocol version according to which the SSL library interprets
2308 the current protocol message (SSL2_VERSION, SSL3_VERSION, or
2309 TLS1_VERSION). 'content_type' is 0 in the case of SSL 2.0, or
2310 the content type as defined in the SSL 3.0/TLS 1.0 protocol
2311 specification (change_cipher_spec(20), alert(21), handshake(22)).
2312 'buf' and 'len' point to the actual message, 'ssl' to the
2313 SSL object, and 'arg' is the application-defined value set by
2314 SSL[_CTX]_set_msg_callback_arg().
2316 'openssl s_client' and 'openssl s_server' have new '-msg' options
2317 to enable a callback that displays all protocol messages.
2320 *) Change the shared library support so shared libraries are built as
2321 soon as the corresponding static library is finished, and thereby get
2322 openssl and the test programs linked against the shared library.
2323 This still only happens when the keyword "shard" has been given to
2324 the configuration scripts.
2326 NOTE: shared library support is still an experimental thing, and
2327 backward binary compatibility is still not guaranteed.
2328 ["Maciej W. Rozycki" <macro@ds2.pg.gda.pl> and Richard Levitte]
2330 *) Add support for Subject Information Access extension.
2331 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
2333 *) Make BUF_MEM_grow() behaviour more consistent: Initialise to zero
2334 additional bytes when new memory had to be allocated, not just
2335 when reusing an existing buffer.
2338 *) New command line and configuration option 'utf8' for the req command.
2339 This allows field values to be specified as UTF8 strings.
2342 *) Add -multi and -mr options to "openssl speed" - giving multiple parallel
2343 runs for the former and machine-readable output for the latter.
2346 *) Add '-noemailDN' option to 'openssl ca'. This prevents inclusion
2347 of the e-mail address in the DN (i.e., it will go into a certificate
2348 extension only). The new configuration file option 'email_in_dn = no'
2349 has the same effect.
2350 [Massimiliano Pala madwolf@openca.org]
2352 *) Change all functions with names starting with des_ to be starting
2353 with DES_ instead. Add wrappers that are compatible with libdes,
2354 but are named _ossl_old_des_*. Finally, add macros that map the
2355 des_* symbols to the corresponding _ossl_old_des_* if libdes
2356 compatibility is desired. If OpenSSL 0.9.6c compatibility is
2357 desired, the des_* symbols will be mapped to DES_*, with one
2360 Since we provide two compatibility mappings, the user needs to
2361 define the macro OPENSSL_DES_LIBDES_COMPATIBILITY if libdes
2362 compatibility is desired. The default (i.e., when that macro
2363 isn't defined) is OpenSSL 0.9.6c compatibility.
2365 There are also macros that enable and disable the support of old
2366 des functions altogether. Those are OPENSSL_ENABLE_OLD_DES_SUPPORT
2367 and OPENSSL_DISABLE_OLD_DES_SUPPORT. If none or both of those
2368 are defined, the default will apply: to support the old des routines.
2370 In either case, one must include openssl/des.h to get the correct
2371 definitions. Do not try to just include openssl/des_old.h, that
2374 NOTE: This is a major break of an old API into a new one. Software
2375 authors are encouraged to switch to the DES_ style functions. Some
2376 time in the future, des_old.h and the libdes compatibility functions
2377 will be disable (i.e. OPENSSL_DISABLE_OLD_DES_SUPPORT will be the
2378 default), and then completely removed.
2381 *) Test for certificates which contain unsupported critical extensions.
2382 If such a certificate is found during a verify operation it is
2383 rejected by default: this behaviour can be overridden by either
2384 handling the new error X509_V_ERR_UNHANDLED_CRITICAL_EXTENSION or
2385 by setting the verify flag X509_V_FLAG_IGNORE_CRITICAL. A new function
2386 X509_supported_extension() has also been added which returns 1 if a
2387 particular extension is supported.
2390 *) Modify the behaviour of EVP cipher functions in similar way to digests
2391 to retain compatibility with existing code.
2394 *) Modify the behaviour of EVP_DigestInit() and EVP_DigestFinal() to retain
2395 compatibility with existing code. In particular the 'ctx' parameter does
2396 not have to be to be initialized before the call to EVP_DigestInit() and
2397 it is tidied up after a call to EVP_DigestFinal(). New function
2398 EVP_DigestFinal_ex() which does not tidy up the ctx. Similarly function
2399 EVP_MD_CTX_copy() changed to not require the destination to be
2400 initialized valid and new function EVP_MD_CTX_copy_ex() added which
2401 requires the destination to be valid.
2403 Modify all the OpenSSL digest calls to use EVP_DigestInit_ex(),
2404 EVP_DigestFinal_ex() and EVP_MD_CTX_copy_ex().
2407 *) Change ssl3_get_message (ssl/s3_both.c) and the functions using it
2408 so that complete 'Handshake' protocol structures are kept in memory
2409 instead of overwriting 'msg_type' and 'length' with 'body' data.
2412 *) Add an implementation of SSL_add_dir_cert_subjects_to_stack for Win32.
2413 [Massimo Santin via Richard Levitte]
2415 *) Major restructuring to the underlying ENGINE code. This includes
2416 reduction of linker bloat, separation of pure "ENGINE" manipulation
2417 (initialisation, etc) from functionality dealing with implementations
2418 of specific crypto iterfaces. This change also introduces integrated
2419 support for symmetric ciphers and digest implementations - so ENGINEs
2420 can now accelerate these by providing EVP_CIPHER and EVP_MD
2421 implementations of their own. This is detailed in crypto/engine/README
2422 as it couldn't be adequately described here. However, there are a few
2423 API changes worth noting - some RSA, DSA, DH, and RAND functions that
2424 were changed in the original introduction of ENGINE code have now
2425 reverted back - the hooking from this code to ENGINE is now a good
2426 deal more passive and at run-time, operations deal directly with
2427 RSA_METHODs, DSA_METHODs (etc) as they did before, rather than
2428 dereferencing through an ENGINE pointer any more. Also, the ENGINE
2429 functions dealing with BN_MOD_EXP[_CRT] handlers have been removed -
2430 they were not being used by the framework as there is no concept of a
2431 BIGNUM_METHOD and they could not be generalised to the new
2432 'ENGINE_TABLE' mechanism that underlies the new code. Similarly,
2433 ENGINE_cpy() has been removed as it cannot be consistently defined in
2437 *) Change ASN1_GENERALIZEDTIME_check() to allow fractional seconds.
2440 *) Change mkdef.pl to sort symbols that get the same entry number,
2441 and make sure the automatically generated functions ERR_load_*
2442 become part of libeay.num as well.
2445 *) New function SSL_renegotiate_pending(). This returns true once
2446 renegotiation has been requested (either SSL_renegotiate() call
2447 or HelloRequest/ClientHello receveived from the peer) and becomes
2448 false once a handshake has been completed.
2449 (For servers, SSL_renegotiate() followed by SSL_do_handshake()
2450 sends a HelloRequest, but does not ensure that a handshake takes
2451 place. SSL_renegotiate_pending() is useful for checking if the
2452 client has followed the request.)
2455 *) New SSL option SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION.
2456 By default, clients may request session resumption even during
2457 renegotiation (if session ID contexts permit); with this option,
2458 session resumption is possible only in the first handshake.
2460 SSL_OP_ALL is now 0x00000FFFL instead of 0x000FFFFFL. This makes
2461 more bits available for options that should not be part of
2462 SSL_OP_ALL (such as SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION).
2465 *) Add some demos for certificate and certificate request creation.
2468 *) Make maximum certificate chain size accepted from the peer application
2469 settable (SSL*_get/set_max_cert_list()), as proposed by
2470 "Douglas E. Engert" <deengert@anl.gov>.
2473 *) Add support for shared libraries for Unixware-7
2474 (Boyd Lynn Gerber <gerberb@zenez.com>).
2477 *) Add a "destroy" handler to ENGINEs that allows structural cleanup to
2478 be done prior to destruction. Use this to unload error strings from
2479 ENGINEs that load their own error strings. NB: This adds two new API
2480 functions to "get" and "set" this destroy handler in an ENGINE.
2483 *) Alter all existing ENGINE implementations (except "openssl" and
2484 "openbsd") to dynamically instantiate their own error strings. This
2485 makes them more flexible to be built both as statically-linked ENGINEs
2486 and self-contained shared-libraries loadable via the "dynamic" ENGINE.
2487 Also, add stub code to each that makes building them as self-contained
2488 shared-libraries easier (see README.ENGINE).
2491 *) Add a "dynamic" ENGINE that provides a mechanism for binding ENGINE
2492 implementations into applications that are completely implemented in
2493 self-contained shared-libraries. The "dynamic" ENGINE exposes control
2494 commands that can be used to configure what shared-library to load and
2495 to control aspects of the way it is handled. Also, made an update to
2496 the README.ENGINE file that brings its information up-to-date and
2497 provides some information and instructions on the "dynamic" ENGINE
2498 (ie. how to use it, how to build "dynamic"-loadable ENGINEs, etc).
2501 *) Make it possible to unload ranges of ERR strings with a new
2502 "ERR_unload_strings" function.
2505 *) Add a copy() function to EVP_MD.
2508 *) Make EVP_MD routines take a context pointer instead of just the
2509 md_data void pointer.
2512 *) Add flags to EVP_MD and EVP_MD_CTX. EVP_MD_FLAG_ONESHOT indicates
2513 that the digest can only process a single chunk of data
2514 (typically because it is provided by a piece of
2515 hardware). EVP_MD_CTX_FLAG_ONESHOT indicates that the application
2516 is only going to provide a single chunk of data, and hence the
2517 framework needn't accumulate the data for oneshot drivers.
2520 *) As with "ERR", make it possible to replace the underlying "ex_data"
2521 functions. This change also alters the storage and management of global
2522 ex_data state - it's now all inside ex_data.c and all "class" code (eg.
2523 RSA, BIO, SSL_CTX, etc) no longer stores its own STACKS and per-class
2524 index counters. The API functions that use this state have been changed
2525 to take a "class_index" rather than pointers to the class's local STACK
2526 and counter, and there is now an API function to dynamically create new
2527 classes. This centralisation allows us to (a) plug a lot of the
2528 thread-safety problems that existed, and (b) makes it possible to clean
2529 up all allocated state using "CRYPTO_cleanup_all_ex_data()". W.r.t. (b)
2530 such data would previously have always leaked in application code and
2531 workarounds were in place to make the memory debugging turn a blind eye
2532 to it. Application code that doesn't use this new function will still
2533 leak as before, but their memory debugging output will announce it now
2534 rather than letting it slide.
2536 Besides the addition of CRYPTO_cleanup_all_ex_data(), another API change
2537 induced by the "ex_data" overhaul is that X509_STORE_CTX_init() now
2538 has a return value to indicate success or failure.
2541 *) Make it possible to replace the underlying "ERR" functions such that the
2542 global state (2 LHASH tables and 2 locks) is only used by the "default"
2543 implementation. This change also adds two functions to "get" and "set"
2544 the implementation prior to it being automatically set the first time
2545 any other ERR function takes place. Ie. an application can call "get",
2546 pass the return value to a module it has just loaded, and that module
2547 can call its own "set" function using that value. This means the
2548 module's "ERR" operations will use (and modify) the error state in the
2549 application and not in its own statically linked copy of OpenSSL code.
2552 *) Give DH, DSA, and RSA types their own "**_up_ref()" function to increment
2553 reference counts. This performs normal REF_PRINT/REF_CHECK macros on
2554 the operation, and provides a more encapsulated way for external code
2555 (crypto/evp/ and ssl/) to do this. Also changed the evp and ssl code
2556 to use these functions rather than manually incrementing the counts.
2558 Also rename "DSO_up()" function to more descriptive "DSO_up_ref()".
2561 *) Add EVP test program.
2564 *) Add symmetric cipher support to ENGINE. Expect the API to change!
2567 *) New CRL functions: X509_CRL_set_version(), X509_CRL_set_issuer_name()
2568 X509_CRL_set_lastUpdate(), X509_CRL_set_nextUpdate(), X509_CRL_sort(),
2569 X509_REVOKED_set_serialNumber(), and X509_REVOKED_set_revocationDate().
2570 These allow a CRL to be built without having to access X509_CRL fields
2571 directly. Modify 'ca' application to use new functions.
2574 *) Move SSL_OP_TLS_ROLLBACK_BUG out of the SSL_OP_ALL list of recommended
2575 bug workarounds. Rollback attack detection is a security feature.
2576 The problem will only arise on OpenSSL servers when TLSv1 is not
2577 available (sslv3_server_method() or SSL_OP_NO_TLSv1).
2578 Software authors not wanting to support TLSv1 will have special reasons
2579 for their choice and can explicitly enable this option.
2580 [Bodo Moeller, Lutz Jaenicke]
2582 *) Rationalise EVP so it can be extended: don't include a union of
2583 cipher/digest structures, add init/cleanup functions for EVP_MD_CTX
2584 (similar to those existing for EVP_CIPHER_CTX).
2589 EVP_MD_CTX_init(&md); /* new function call */
2590 EVP_DigestInit(&md, EVP_sha1());
2591 EVP_DigestUpdate(&md, in, len);
2592 EVP_DigestFinal(&md, out, NULL);
2593 EVP_MD_CTX_cleanup(&md); /* new function call */
2597 *) Make DES key schedule conform to the usual scheme, as well as
2598 correcting its structure. This means that calls to DES functions
2599 now have to pass a pointer to a des_key_schedule instead of a
2600 plain des_key_schedule (which was actually always a pointer
2603 des_key_schedule ks;
2605 des_set_key_checked(..., &ks);
2606 des_ncbc_encrypt(..., &ks, ...);
2608 (Note that a later change renames 'des_...' into 'DES_...'.)
2611 *) Initial reduction of linker bloat: the use of some functions, such as
2612 PEM causes large amounts of unused functions to be linked in due to
2613 poor organisation. For example pem_all.c contains every PEM function
2614 which has a knock on effect of linking in large amounts of (unused)
2615 ASN1 code. Grouping together similar functions and splitting unrelated
2616 functions prevents this.
2619 *) Cleanup of EVP macros.
2622 *) Change historical references to {NID,SN,LN}_des_ede and ede3 to add the
2623 correct _ecb suffix.
2626 *) Add initial OCSP responder support to ocsp application. The
2627 revocation information is handled using the text based index
2628 use by the ca application. The responder can either handle
2629 requests generated internally, supplied in files (for example
2630 via a CGI script) or using an internal minimal server.
2633 *) Add configuration choices to get zlib compression for TLS.
2636 *) Changes to Kerberos SSL for RFC 2712 compliance:
2637 1. Implemented real KerberosWrapper, instead of just using
2638 KRB5 AP_REQ message. [Thanks to Simon Wilkinson <sxw@sxw.org.uk>]
2639 2. Implemented optional authenticator field of KerberosWrapper.
2641 Added openssl-style ASN.1 macros for Kerberos ticket, ap_req,
2642 and authenticator structs; see crypto/krb5/.
2644 Generalized Kerberos calls to support multiple Kerberos libraries.
2645 [Vern Staats <staatsvr@asc.hpc.mil>,
2646 Jeffrey Altman <jaltman@columbia.edu>
2647 via Richard Levitte]
2649 *) Cause 'openssl speed' to use fully hard-coded DSA keys as it
2650 already does with RSA. testdsa.h now has 'priv_key/pub_key'
2651 values for each of the key sizes rather than having just
2652 parameters (and 'speed' generating keys each time).
2655 *) Speed up EVP routines.
2658 type 8 bytes 64 bytes 256 bytes 1024 bytes 8192 bytes
2659 des-cbc 4408.85k 5560.51k 5778.46k 5862.20k 5825.16k
2660 des-cbc 4389.55k 5571.17k 5792.23k 5846.91k 5832.11k
2661 des-cbc 4394.32k 5575.92k 5807.44k 5848.37k 5841.30k
2663 des-cbc 3482.66k 5069.49k 5496.39k 5614.16k 5639.28k
2664 des-cbc 3480.74k 5068.76k 5510.34k 5609.87k 5635.52k
2665 des-cbc 3483.72k 5067.62k 5504.60k 5708.01k 5724.80k
2668 des-cbc 4660.16k 5650.19k 5807.19k 5827.13k 5783.32k
2670 des-cbc 3624.96k 5258.21k 5530.91k 5624.30k 5628.26k
2673 *) Added the OS2-EMX target.
2674 ["Brian Havard" <brianh@kheldar.apana.org.au> and Richard Levitte]
2676 *) Rewrite apps to use NCONF routines instead of the old CONF. New functions
2677 to support NCONF routines in extension code. New function CONF_set_nconf()
2678 to allow functions which take an NCONF to also handle the old LHASH
2679 structure: this means that the old CONF compatible routines can be
2680 retained (in particular wrt extensions) without having to duplicate the
2681 code. New function X509V3_add_ext_nconf_sk to add extensions to a stack.
2684 *) Enhance the general user interface with mechanisms for inner control
2685 and with possibilities to have yes/no kind of prompts.
2688 *) Change all calls to low level digest routines in the library and
2689 applications to use EVP. Add missing calls to HMAC_cleanup() and
2690 don't assume HMAC_CTX can be copied using memcpy().
2691 [Verdon Walker <VWalker@novell.com>, Steve Henson]
2693 *) Add the possibility to control engines through control names but with
2694 arbitrary arguments instead of just a string.
2695 Change the key loaders to take a UI_METHOD instead of a callback
2696 function pointer. NOTE: this breaks binary compatibility with earlier
2697 versions of OpenSSL [engine].
2698 Adapt the nCipher code for these new conditions and add a card insertion
2702 *) Enhance the general user interface with mechanisms to better support
2703 dialog box interfaces, application-defined prompts, the possibility
2704 to use defaults (for example default passwords from somewhere else)
2705 and interrupts/cancellations.
2708 *) Tidy up PKCS#12 attribute handling. Add support for the CSP name
2709 attribute in PKCS#12 files, add new -CSP option to pkcs12 utility.
2712 *) Fix a memory leak in 'sk_dup()' in the case reallocation fails. (Also
2713 tidy up some unnecessarily weird code in 'sk_new()').
2714 [Geoff, reported by Diego Tartara <dtartara@novamens.com>]
2716 *) Change the key loading routines for ENGINEs to use the same kind
2717 callback (pem_password_cb) as all other routines that need this
2721 *) Increase ENTROPY_NEEDED to 32 bytes, as Rijndael can operate with
2722 256 bit (=32 byte) keys. Of course seeding with more entropy bytes
2723 than this minimum value is recommended.
2726 *) New random seeder for OpenVMS, using the system process statistics
2727 that are easily reachable.
2730 *) Windows apparently can't transparently handle global
2731 variables defined in DLLs. Initialisations such as:
2733 const ASN1_ITEM *it = &ASN1_INTEGER_it;
2735 wont compile. This is used by the any applications that need to
2736 declare their own ASN1 modules. This was fixed by adding the option
2737 EXPORT_VAR_AS_FN to all Win32 platforms, although this isn't strictly
2738 needed for static libraries under Win32.
2741 *) New functions X509_PURPOSE_set() and X509_TRUST_set() to handle
2742 setting of purpose and trust fields. New X509_STORE trust and
2743 purpose functions and tidy up setting in other SSL functions.
2746 *) Add copies of X509_STORE_CTX fields and callbacks to X509_STORE
2747 structure. These are inherited by X509_STORE_CTX when it is
2748 initialised. This allows various defaults to be set in the
2749 X509_STORE structure (such as flags for CRL checking and custom
2750 purpose or trust settings) for functions which only use X509_STORE_CTX
2751 internally such as S/MIME.
2753 Modify X509_STORE_CTX_purpose_inherit() so it only sets purposes and
2754 trust settings if they are not set in X509_STORE. This allows X509_STORE
2755 purposes and trust (in S/MIME for example) to override any set by default.
2757 Add command line options for CRL checking to smime, s_client and s_server
2761 *) Initial CRL based revocation checking. If the CRL checking flag(s)
2762 are set then the CRL is looked up in the X509_STORE structure and
2763 its validity and signature checked, then if the certificate is found
2764 in the CRL the verify fails with a revoked error.
2766 Various new CRL related callbacks added to X509_STORE_CTX structure.
2768 Command line options added to 'verify' application to support this.
2770 This needs some additional work, such as being able to handle multiple
2771 CRLs with different times, extension based lookup (rather than just
2772 by subject name) and ultimately more complete V2 CRL extension
2776 *) Add a general user interface API (crypto/ui/). This is designed
2777 to replace things like des_read_password and friends (backward
2778 compatibility functions using this new API are provided).
2779 The purpose is to remove prompting functions from the DES code
2780 section as well as provide for prompting through dialog boxes in
2781 a window system and the like.
2784 *) Add "ex_data" support to ENGINE so implementations can add state at a
2785 per-structure level rather than having to store it globally.
2788 *) Make it possible for ENGINE structures to be copied when retrieved by
2789 ENGINE_by_id() if the ENGINE specifies a new flag: ENGINE_FLAGS_BY_ID_COPY.
2790 This causes the "original" ENGINE structure to act like a template,
2791 analogous to the RSA vs. RSA_METHOD type of separation. Because of this
2792 operational state can be localised to each ENGINE structure, despite the
2793 fact they all share the same "methods". New ENGINE structures returned in
2794 this case have no functional references and the return value is the single
2795 structural reference. This matches the single structural reference returned
2796 by ENGINE_by_id() normally, when it is incremented on the pre-existing
2800 *) Fix ASN1 decoder when decoding type ANY and V_ASN1_OTHER: since this
2801 needs to match any other type at all we need to manually clear the
2805 *) Changes to the "openssl engine" utility to include;
2806 - verbosity levels ('-v', '-vv', and '-vvv') that provide information
2807 about an ENGINE's available control commands.
2808 - executing control commands from command line arguments using the
2809 '-pre' and '-post' switches. '-post' is only used if '-t' is
2810 specified and the ENGINE is successfully initialised. The syntax for
2811 the individual commands are colon-separated, for example;
2812 openssl engine chil -pre FORK_CHECK:0 -pre SO_PATH:/lib/test.so
2815 *) New dynamic control command support for ENGINEs. ENGINEs can now
2816 declare their own commands (numbers), names (strings), descriptions,
2817 and input types for run-time discovery by calling applications. A
2818 subset of these commands are implicitly classed as "executable"
2819 depending on their input type, and only these can be invoked through
2820 the new string-based API function ENGINE_ctrl_cmd_string(). (Eg. this
2821 can be based on user input, config files, etc). The distinction is
2822 that "executable" commands cannot return anything other than a boolean
2823 result and can only support numeric or string input, whereas some
2824 discoverable commands may only be for direct use through
2825 ENGINE_ctrl(), eg. supporting the exchange of binary data, function
2826 pointers, or other custom uses. The "executable" commands are to
2827 support parameterisations of ENGINE behaviour that can be
2828 unambiguously defined by ENGINEs and used consistently across any
2829 OpenSSL-based application. Commands have been added to all the
2830 existing hardware-supporting ENGINEs, noticeably "SO_PATH" to allow
2831 control over shared-library paths without source code alterations.
2834 *) Changed all ENGINE implementations to dynamically allocate their
2835 ENGINEs rather than declaring them statically. Apart from this being
2836 necessary with the removal of the ENGINE_FLAGS_MALLOCED distinction,
2837 this also allows the implementations to compile without using the
2838 internal engine_int.h header.
2841 *) Minor adjustment to "rand" code. RAND_get_rand_method() now returns a
2842 'const' value. Any code that should be able to modify a RAND_METHOD
2843 should already have non-const pointers to it (ie. they should only
2844 modify their own ones).
2847 *) Made a variety of little tweaks to the ENGINE code.
2848 - "atalla" and "ubsec" string definitions were moved from header files
2849 to C code. "nuron" string definitions were placed in variables
2850 rather than hard-coded - allowing parameterisation of these values
2851 later on via ctrl() commands.
2852 - Removed unused "#if 0"'d code.
2853 - Fixed engine list iteration code so it uses ENGINE_free() to release
2854 structural references.
2855 - Constified the RAND_METHOD element of ENGINE structures.
2856 - Constified various get/set functions as appropriate and added
2857 missing functions (including a catch-all ENGINE_cpy that duplicates
2858 all ENGINE values onto a new ENGINE except reference counts/state).
2859 - Removed NULL parameter checks in get/set functions. Setting a method
2860 or function to NULL is a way of cancelling out a previously set
2861 value. Passing a NULL ENGINE parameter is just plain stupid anyway
2862 and doesn't justify the extra error symbols and code.
2863 - Deprecate the ENGINE_FLAGS_MALLOCED define and move the area for
2864 flags from engine_int.h to engine.h.
2865 - Changed prototypes for ENGINE handler functions (init(), finish(),
2866 ctrl(), key-load functions, etc) to take an (ENGINE*) parameter.
2869 *) Implement binary inversion algorithm for BN_mod_inverse in addition
2870 to the algorithm using long division. The binary algorithm can be
2871 used only if the modulus is odd. On 32-bit systems, it is faster
2872 only for relatively small moduli (roughly 20-30% for 128-bit moduli,
2873 roughly 5-15% for 256-bit moduli), so we use it only for moduli
2874 up to 450 bits. In 64-bit environments, the binary algorithm
2875 appears to be advantageous for much longer moduli; here we use it
2876 for moduli up to 2048 bits.
2879 *) Rewrite CHOICE field setting in ASN1_item_ex_d2i(). The old code
2880 could not support the combine flag in choice fields.
2883 *) Add a 'copy_extensions' option to the 'ca' utility. This copies
2884 extensions from a certificate request to the certificate.
2887 *) Allow multiple 'certopt' and 'nameopt' options to be separated
2888 by commas. Add 'namopt' and 'certopt' options to the 'ca' config
2889 file: this allows the display of the certificate about to be
2890 signed to be customised, to allow certain fields to be included
2891 or excluded and extension details. The old system didn't display
2892 multicharacter strings properly, omitted fields not in the policy
2893 and couldn't display additional details such as extensions.
2896 *) Function EC_POINTs_mul for multiple scalar multiplication
2897 of an arbitrary number of elliptic curve points
2898 \sum scalars[i]*points[i],
2899 optionally including the generator defined for the EC_GROUP:
2900 scalar*generator + \sum scalars[i]*points[i].
2902 EC_POINT_mul is a simple wrapper function for the typical case
2903 that the point list has just one item (besides the optional
2907 *) First EC_METHODs for curves over GF(p):
2909 EC_GFp_simple_method() uses the basic BN_mod_mul and BN_mod_sqr
2910 operations and provides various method functions that can also
2911 operate with faster implementations of modular arithmetic.
2913 EC_GFp_mont_method() reuses most functions that are part of
2914 EC_GFp_simple_method, but uses Montgomery arithmetic.
2916 [Bodo Moeller; point addition and point doubling
2917 implementation directly derived from source code provided by
2918 Lenka Fibikova <fibikova@exp-math.uni-essen.de>]
2920 *) Framework for elliptic curves (crypto/ec/ec.h, crypto/ec/ec_lcl.h,
2921 crypto/ec/ec_lib.c):
2923 Curves are EC_GROUP objects (with an optional group generator)
2924 based on EC_METHODs that are built into the library.
2926 Points are EC_POINT objects based on EC_GROUP objects.
2928 Most of the framework would be able to handle curves over arbitrary
2929 finite fields, but as there are no obvious types for fields other
2930 than GF(p), some functions are limited to that for now.
2933 *) Add the -HTTP option to s_server. It is similar to -WWW, but requires
2934 that the file contains a complete HTTP response.
2937 *) Add the ec directory to mkdef.pl and mkfiles.pl. In mkdef.pl
2938 change the def and num file printf format specifier from "%-40sXXX"
2939 to "%-39s XXX". The latter will always guarantee a space after the
2940 field while the former will cause them to run together if the field
2941 is 40 of more characters long.
2944 *) Constify the cipher and digest 'method' functions and structures
2945 and modify related functions to take constant EVP_MD and EVP_CIPHER
2949 *) Hide BN_CTX structure details in bn_lcl.h instead of publishing them
2950 in <openssl/bn.h>. Also further increase BN_CTX_NUM to 32.
2953 *) Modify EVP_Digest*() routines so they now return values. Although the
2954 internal software routines can never fail additional hardware versions
2958 *) Clean up crypto/err/err.h and change some error codes to avoid conflicts:
2960 Previously ERR_R_FATAL was too small and coincided with ERR_LIB_PKCS7
2961 (= ERR_R_PKCS7_LIB); it is now 64 instead of 32.
2964 ERR_R_NESTED_ASN1_ERROR
2966 ERR_R_MISSING_ASN1_EOS
2967 were 4 .. 9, conflicting with
2968 ERR_LIB_RSA (= ERR_R_RSA_LIB)
2970 ERR_LIB_PEM (= ERR_R_PEM_LIB).
2971 They are now 58 .. 63 (i.e., just below ERR_R_FATAL).
2973 Add new error code 'ERR_R_INTERNAL_ERROR'.
2976 *) Don't overuse locks in crypto/err/err.c: For data retrieval, CRYPTO_r_lock
2980 *) New option '-subj arg' for 'openssl req' and 'openssl ca'. This
2981 sets the subject name for a new request or supersedes the
2982 subject name in a given request. Formats that can be parsed are
2983 'CN=Some Name, OU=myOU, C=IT'
2985 'CN=Some Name/OU=myOU/C=IT'.
2987 Add options '-batch' and '-verbose' to 'openssl req'.
2988 [Massimiliano Pala <madwolf@hackmasters.net>]
2990 *) Introduce the possibility to access global variables through
2991 functions on platform were that's the best way to handle exporting
2992 global variables in shared libraries. To enable this functionality,
2993 one must configure with "EXPORT_VAR_AS_FN" or defined the C macro
2994 "OPENSSL_EXPORT_VAR_AS_FUNCTION" in crypto/opensslconf.h (the latter
2995 is normally done by Configure or something similar).
2997 To implement a global variable, use the macro OPENSSL_IMPLEMENT_GLOBAL
2998 in the source file (foo.c) like this:
3000 OPENSSL_IMPLEMENT_GLOBAL(int,foo)=1;
3001 OPENSSL_IMPLEMENT_GLOBAL(double,bar);
3003 To declare a global variable, use the macros OPENSSL_DECLARE_GLOBAL
3004 and OPENSSL_GLOBAL_REF in the header file (foo.h) like this:
3006 OPENSSL_DECLARE_GLOBAL(int,foo);
3007 #define foo OPENSSL_GLOBAL_REF(foo)
3008 OPENSSL_DECLARE_GLOBAL(double,bar);
3009 #define bar OPENSSL_GLOBAL_REF(bar)
3011 The #defines are very important, and therefore so is including the
3012 header file everywhere where the defined globals are used.
3014 The macro OPENSSL_EXPORT_VAR_AS_FUNCTION also affects the definition
3015 of ASN.1 items, but that structure is a bit different.
3017 The largest change is in util/mkdef.pl which has been enhanced with
3018 better and easier to understand logic to choose which symbols should
3019 go into the Windows .def files as well as a number of fixes and code
3020 cleanup (among others, algorithm keywords are now sorted
3021 lexicographically to avoid constant rewrites).
3024 *) In BN_div() keep a copy of the sign of 'num' before writing the
3025 result to 'rm' because if rm==num the value will be overwritten
3026 and produce the wrong result if 'num' is negative: this caused
3027 problems with BN_mod() and BN_nnmod().
3030 *) Function OCSP_request_verify(). This checks the signature on an
3031 OCSP request and verifies the signer certificate. The signer
3032 certificate is just checked for a generic purpose and OCSP request
3036 *) Add OCSP_check_validity() function to check the validity of OCSP
3037 responses. OCSP responses are prepared in real time and may only
3038 be a few seconds old. Simply checking that the current time lies
3039 between thisUpdate and nextUpdate max reject otherwise valid responses
3040 caused by either OCSP responder or client clock inaccuracy. Instead
3041 we allow thisUpdate and nextUpdate to fall within a certain period of
3042 the current time. The age of the response can also optionally be
3043 checked. Two new options -validity_period and -status_age added to
3047 *) If signature or public key algorithm is unrecognized print out its
3048 OID rather that just UNKNOWN.
3051 *) Change OCSP_cert_to_id() to tolerate a NULL subject certificate and
3052 OCSP_cert_id_new() a NULL serialNumber. This allows a partial certificate
3053 ID to be generated from the issuer certificate alone which can then be
3054 passed to OCSP_id_issuer_cmp().
3057 *) New compilation option ASN1_ITEM_FUNCTIONS. This causes the new
3058 ASN1 modules to export functions returning ASN1_ITEM pointers
3059 instead of the ASN1_ITEM structures themselves. This adds several
3060 new macros which allow the underlying ASN1 function/structure to
3061 be accessed transparently. As a result code should not use ASN1_ITEM
3062 references directly (such as &X509_it) but instead use the relevant
3063 macros (such as ASN1_ITEM_rptr(X509)). This option is to allow
3064 use of the new ASN1 code on platforms where exporting structures
3065 is problematical (for example in shared libraries) but exporting
3066 functions returning pointers to structures is not.
3069 *) Add support for overriding the generation of SSL/TLS session IDs.
3070 These callbacks can be registered either in an SSL_CTX or per SSL.
3071 The purpose of this is to allow applications to control, if they wish,
3072 the arbitrary values chosen for use as session IDs, particularly as it
3073 can be useful for session caching in multiple-server environments. A
3074 command-line switch for testing this (and any client code that wishes
3075 to use such a feature) has been added to "s_server".
3076 [Geoff Thorpe, Lutz Jaenicke]
3078 *) Modify mkdef.pl to recognise and parse preprocessor conditionals
3079 of the form '#if defined(...) || defined(...) || ...' and
3080 '#if !defined(...) && !defined(...) && ...'. This also avoids
3081 the growing number of special cases it was previously handling.
3084 *) Make all configuration macros available for application by making
3085 sure they are available in opensslconf.h, by giving them names starting
3086 with "OPENSSL_" to avoid conflicts with other packages and by making
3087 sure e_os2.h will cover all platform-specific cases together with
3089 Additionally, it is now possible to define configuration/platform-
3090 specific names (called "system identities"). In the C code, these
3091 are prefixed with "OPENSSL_SYSNAME_". e_os2.h will create another
3092 macro with the name beginning with "OPENSSL_SYS_", which is determined
3093 from "OPENSSL_SYSNAME_*" or compiler-specific macros depending on
3097 *) New option -set_serial to 'req' and 'x509' this allows the serial
3098 number to use to be specified on the command line. Previously self
3099 signed certificates were hard coded with serial number 0 and the
3100 CA options of 'x509' had to use a serial number in a file which was
3104 *) New options to 'ca' utility to support V2 CRL entry extensions.
3105 Currently CRL reason, invalidity date and hold instruction are
3106 supported. Add new CRL extensions to V3 code and some new objects.
3109 *) New function EVP_CIPHER_CTX_set_padding() this is used to
3110 disable standard block padding (aka PKCS#5 padding) in the EVP
3111 API, which was previously mandatory. This means that the data is
3112 not padded in any way and so the total length much be a multiple
3113 of the block size, otherwise an error occurs.
3116 *) Initial (incomplete) OCSP SSL support.
3119 *) New function OCSP_parse_url(). This splits up a URL into its host,
3120 port and path components: primarily to parse OCSP URLs. New -url
3121 option to ocsp utility.
3124 *) New nonce behavior. The return value of OCSP_check_nonce() now
3125 reflects the various checks performed. Applications can decide
3126 whether to tolerate certain situations such as an absent nonce
3127 in a response when one was present in a request: the ocsp application
3128 just prints out a warning. New function OCSP_add1_basic_nonce()
3129 this is to allow responders to include a nonce in a response even if
3130 the request is nonce-less.
3133 *) Disable stdin buffering in load_cert (apps/apps.c) so that no certs are
3134 skipped when using openssl x509 multiple times on a single input file,
3135 e.g. "(openssl x509 -out cert1; openssl x509 -out cert2) <certs".
3138 *) Make ASN1_UTCTIME_set_string() and ASN1_GENERALIZEDTIME_set_string()
3139 set string type: to handle setting ASN1_TIME structures. Fix ca
3140 utility to correctly initialize revocation date of CRLs.
3143 *) New option SSL_OP_CIPHER_SERVER_PREFERENCE allows the server to override
3144 the clients preferred ciphersuites and rather use its own preferences.
3145 Should help to work around M$ SGC (Server Gated Cryptography) bug in
3146 Internet Explorer by ensuring unchanged hash method during stepup.
3147 (Also replaces the broken/deactivated SSL_OP_NON_EXPORT_FIRST option.)
3150 *) Make mkdef.pl recognise all DECLARE_ASN1 macros, change rijndael
3151 to aes and add a new 'exist' option to print out symbols that don't
3155 *) Additional options to ocsp utility to allow flags to be set and
3156 additional certificates supplied.
3159 *) Add the option -VAfile to 'openssl ocsp', so the user can give the
3160 OCSP client a number of certificate to only verify the response
3164 *) Update Rijndael code to version 3.0 and change EVP AES ciphers to
3165 handle the new API. Currently only ECB, CBC modes supported. Add new
3168 Add TLS AES ciphersuites as described in RFC3268, "Advanced
3169 Encryption Standard (AES) Ciphersuites for Transport Layer
3170 Security (TLS)". (In beta versions of OpenSSL 0.9.7, these were
3171 not enabled by default and were not part of the "ALL" ciphersuite
3172 alias because they were not yet official; they could be
3173 explicitly requested by specifying the "AESdraft" ciphersuite
3174 group alias. In the final release of OpenSSL 0.9.7, the group
3175 alias is called "AES" and is part of "ALL".)
3176 [Ben Laurie, Steve Henson, Bodo Moeller]
3178 *) New function OCSP_copy_nonce() to copy nonce value (if present) from
3179 request to response.
3182 *) Functions for OCSP responders. OCSP_request_onereq_count(),
3183 OCSP_request_onereq_get0(), OCSP_onereq_get0_id() and OCSP_id_get0_info()
3184 extract information from a certificate request. OCSP_response_create()
3185 creates a response and optionally adds a basic response structure.
3186 OCSP_basic_add1_status() adds a complete single response to a basic
3187 response and returns the OCSP_SINGLERESP structure just added (to allow
3188 extensions to be included for example). OCSP_basic_add1_cert() adds a
3189 certificate to a basic response and OCSP_basic_sign() signs a basic
3190 response with various flags. New helper functions ASN1_TIME_check()
3191 (checks validity of ASN1_TIME structure) and ASN1_TIME_to_generalizedtime()
3192 (converts ASN1_TIME to GeneralizedTime).
3195 *) Various new functions. EVP_Digest() combines EVP_Digest{Init,Update,Final}()
3196 in a single operation. X509_get0_pubkey_bitstr() extracts the public_key
3197 structure from a certificate. X509_pubkey_digest() digests the public_key
3198 contents: this is used in various key identifiers.
3201 *) Make sk_sort() tolerate a NULL argument.
3202 [Steve Henson reported by Massimiliano Pala <madwolf@comune.modena.it>]
3204 *) New OCSP verify flag OCSP_TRUSTOTHER. When set the "other" certificates
3205 passed by the function are trusted implicitly. If any of them signed the
3206 response then it is assumed to be valid and is not verified.
3209 *) In PKCS7_set_type() initialise content_type in PKCS7_ENC_CONTENT
3210 to data. This was previously part of the PKCS7 ASN1 code. This
3211 was causing problems with OpenSSL created PKCS#12 and PKCS#7 structures.
3212 [Steve Henson, reported by Kenneth R. Robinette
3213 <support@securenetterm.com>]
3215 *) Add CRYPTO_push_info() and CRYPTO_pop_info() calls to new ASN1
3216 routines: without these tracing memory leaks is very painful.
3217 Fix leaks in PKCS12 and PKCS7 routines.
3220 *) Make X509_time_adj() cope with the new behaviour of ASN1_TIME_new().
3221 Previously it initialised the 'type' argument to V_ASN1_UTCTIME which
3222 effectively meant GeneralizedTime would never be used. Now it
3223 is initialised to -1 but X509_time_adj() now has to check the value
3224 and use ASN1_TIME_set() if the value is not V_ASN1_UTCTIME or
3225 V_ASN1_GENERALIZEDTIME, without this it always uses GeneralizedTime.
3226 [Steve Henson, reported by Kenneth R. Robinette
3227 <support@securenetterm.com>]
3229 *) Fixes to BN_to_ASN1_INTEGER when bn is zero. This would previously
3230 result in a zero length in the ASN1_INTEGER structure which was
3231 not consistent with the structure when d2i_ASN1_INTEGER() was used
3232 and would cause ASN1_INTEGER_cmp() to fail. Enhance s2i_ASN1_INTEGER()
3233 to cope with hex and negative integers. Fix bug in i2a_ASN1_INTEGER()
3234 where it did not print out a minus for negative ASN1_INTEGER.
3237 *) Add summary printout to ocsp utility. The various functions which
3238 convert status values to strings have been renamed to:
3239 OCSP_response_status_str(), OCSP_cert_status_str() and
3240 OCSP_crl_reason_str() and are no longer static. New options
3241 to verify nonce values and to disable verification. OCSP response
3242 printout format cleaned up.
3245 *) Add additional OCSP certificate checks. These are those specified
3246 in RFC2560. This consists of two separate checks: the CA of the
3247 certificate being checked must either be the OCSP signer certificate
3248 or the issuer of the OCSP signer certificate. In the latter case the
3249 OCSP signer certificate must contain the OCSP signing extended key
3250 usage. This check is performed by attempting to match the OCSP
3251 signer or the OCSP signer CA to the issuerNameHash and issuerKeyHash
3252 in the OCSP_CERTID structures of the response.
3255 *) Initial OCSP certificate verification added to OCSP_basic_verify()
3256 and related routines. This uses the standard OpenSSL certificate
3257 verify routines to perform initial checks (just CA validity) and
3258 to obtain the certificate chain. Then additional checks will be
3259 performed on the chain. Currently the root CA is checked to see
3260 if it is explicitly trusted for OCSP signing. This is used to set
3261 a root CA as a global signing root: that is any certificate that
3262 chains to that CA is an acceptable OCSP signing certificate.
3265 *) New '-extfile ...' option to 'openssl ca' for reading X.509v3
3266 extensions from a separate configuration file.
3267 As when reading extensions from the main configuration file,
3268 the '-extensions ...' option may be used for specifying the
3270 [Massimiliano Pala <madwolf@comune.modena.it>]
3272 *) New OCSP utility. Allows OCSP requests to be generated or
3273 read. The request can be sent to a responder and the output
3274 parsed, outputed or printed in text form. Not complete yet:
3275 still needs to check the OCSP response validity.
3278 *) New subcommands for 'openssl ca':
3279 'openssl ca -status <serial>' prints the status of the cert with
3280 the given serial number (according to the index file).
3281 'openssl ca -updatedb' updates the expiry status of certificates
3283 [Massimiliano Pala <madwolf@comune.modena.it>]
3285 *) New '-newreq-nodes' command option to CA.pl. This is like
3286 '-newreq', but calls 'openssl req' with the '-nodes' option
3287 so that the resulting key is not encrypted.
3288 [Damien Miller <djm@mindrot.org>]
3290 *) New configuration for the GNU Hurd.
3291 [Jonathan Bartlett <johnnyb@wolfram.com> via Richard Levitte]
3293 *) Initial code to implement OCSP basic response verify. This
3294 is currently incomplete. Currently just finds the signer's
3295 certificate and verifies the signature on the response.
3298 *) New SSLeay_version code SSLEAY_DIR to determine the compiled-in
3299 value of OPENSSLDIR. This is available via the new '-d' option
3300 to 'openssl version', and is also included in 'openssl version -a'.
3303 *) Allowing defining memory allocation callbacks that will be given
3304 file name and line number information in additional arguments
3305 (a const char* and an int). The basic functionality remains, as
3306 well as the original possibility to just replace malloc(),
3307 realloc() and free() by functions that do not know about these
3308 additional arguments. To register and find out the current
3309 settings for extended allocation functions, the following
3310 functions are provided:
3312 CRYPTO_set_mem_ex_functions
3313 CRYPTO_set_locked_mem_ex_functions
3314 CRYPTO_get_mem_ex_functions
3315 CRYPTO_get_locked_mem_ex_functions
3317 These work the same way as CRYPTO_set_mem_functions and friends.
3318 CRYPTO_get_[locked_]mem_functions now writes 0 where such an
3319 extended allocation function is enabled.
3320 Similarly, CRYPTO_get_[locked_]mem_ex_functions writes 0 where
3321 a conventional allocation function is enabled.
3322 [Richard Levitte, Bodo Moeller]
3324 *) Finish off removing the remaining LHASH function pointer casts.
3325 There should no longer be any prototype-casting required when using
3326 the LHASH abstraction, and any casts that remain are "bugs". See
3327 the callback types and macros at the head of lhash.h for details
3328 (and "OBJ_cleanup" in crypto/objects/obj_dat.c as an example).
3331 *) Add automatic query of EGD sockets in RAND_poll() for the unix variant.
3332 If /dev/[u]random devices are not available or do not return enough
3333 entropy, EGD style sockets (served by EGD or PRNGD) will automatically
3335 The locations /var/run/egd-pool, /dev/egd-pool, /etc/egd-pool, and
3336 /etc/entropy will be queried once each in this sequence, quering stops
3337 when enough entropy was collected without querying more sockets.
3340 *) Change the Unix RAND_poll() variant to be able to poll several
3341 random devices, as specified by DEVRANDOM, until a sufficient amount
3342 of data has been collected. We spend at most 10 ms on each file
3343 (select timeout) and read in non-blocking mode. DEVRANDOM now
3344 defaults to the list "/dev/urandom", "/dev/random", "/dev/srandom"
3345 (previously it was just the string "/dev/urandom"), so on typical
3346 platforms the 10 ms delay will never occur.
3347 Also separate out the Unix variant to its own file, rand_unix.c.
3348 For VMS, there's a currently-empty rand_vms.c.
3351 *) Move OCSP client related routines to ocsp_cl.c. These
3352 provide utility functions which an application needing
3353 to issue a request to an OCSP responder and analyse the
3354 response will typically need: as opposed to those which an
3355 OCSP responder itself would need which will be added later.
3357 OCSP_request_sign() signs an OCSP request with an API similar
3358 to PKCS7_sign(). OCSP_response_status() returns status of OCSP
3359 response. OCSP_response_get1_basic() extracts basic response
3360 from response. OCSP_resp_find_status(): finds and extracts status
3361 information from an OCSP_CERTID structure (which will be created
3362 when the request structure is built). These are built from lower
3363 level functions which work on OCSP_SINGLERESP structures but
3364 wont normally be used unless the application wishes to examine
3365 extensions in the OCSP response for example.
3367 Replace nonce routines with a pair of functions.
3368 OCSP_request_add1_nonce() adds a nonce value and optionally
3369 generates a random value. OCSP_check_nonce() checks the
3370 validity of the nonce in an OCSP response.
3373 *) Change function OCSP_request_add() to OCSP_request_add0_id().
3374 This doesn't copy the supplied OCSP_CERTID and avoids the
3375 need to free up the newly created id. Change return type
3376 to OCSP_ONEREQ to return the internal OCSP_ONEREQ structure.
3377 This can then be used to add extensions to the request.
3378 Deleted OCSP_request_new(), since most of its functionality
3379 is now in OCSP_REQUEST_new() (and the case insensitive name
3380 clash) apart from the ability to set the request name which
3381 will be added elsewhere.
3384 *) Update OCSP API. Remove obsolete extensions argument from
3385 various functions. Extensions are now handled using the new
3386 OCSP extension code. New simple OCSP HTTP function which
3387 can be used to send requests and parse the response.
3390 *) Fix the PKCS#7 (S/MIME) code to work with new ASN1. Two new
3391 ASN1_ITEM structures help with sign and verify. PKCS7_ATTR_SIGN
3392 uses the special reorder version of SET OF to sort the attributes
3393 and reorder them to match the encoded order. This resolves a long
3394 standing problem: a verify on a PKCS7 structure just after signing
3395 it used to fail because the attribute order did not match the
3396 encoded order. PKCS7_ATTR_VERIFY does not reorder the attributes:
3397 it uses the received order. This is necessary to tolerate some broken
3398 software that does not order SET OF. This is handled by encoding
3399 as a SEQUENCE OF but using implicit tagging (with UNIVERSAL class)
3400 to produce the required SET OF.
3403 *) Have mk1mf.pl generate the macros OPENSSL_BUILD_SHLIBCRYPTO and
3404 OPENSSL_BUILD_SHLIBSSL and use them appropriately in the header
3405 files to get correct declarations of the ASN.1 item variables.
3408 *) Rewrite of PKCS#12 code to use new ASN1 functionality. Replace many
3409 PKCS#12 macros with real functions. Fix two unrelated ASN1 bugs:
3410 asn1_check_tlen() would sometimes attempt to use 'ctx' when it was
3411 NULL and ASN1_TYPE was not dereferenced properly in asn1_ex_c2i().
3412 New ASN1 macro: DECLARE_ASN1_ITEM() which just declares the relevant
3413 ASN1_ITEM and no wrapper functions.
3416 *) New functions or ASN1_item_d2i_fp() and ASN1_item_d2i_bio(). These
3417 replace the old function pointer based I/O routines. Change most of
3418 the *_d2i_bio() and *_d2i_fp() functions to use these.
3421 *) Enhance mkdef.pl to be more accepting about spacing in C preprocessor
3422 lines, recognice more "algorithms" that can be deselected, and make
3423 it complain about algorithm deselection that isn't recognised.
3426 *) New ASN1 functions to handle dup, sign, verify, digest, pack and
3427 unpack operations in terms of ASN1_ITEM. Modify existing wrappers
3428 to use new functions. Add NO_ASN1_OLD which can be set to remove
3429 some old style ASN1 functions: this can be used to determine if old
3430 code will still work when these eventually go away.
3433 *) New extension functions for OCSP structures, these follow the
3434 same conventions as certificates and CRLs.
3437 *) New function X509V3_add1_i2d(). This automatically encodes and
3438 adds an extension. Its behaviour can be customised with various
3439 flags to append, replace or delete. Various wrappers added for
3440 certifcates and CRLs.
3443 *) Fix to avoid calling the underlying ASN1 print routine when
3444 an extension cannot be parsed. Correct a typo in the
3445 OCSP_SERVICELOC extension. Tidy up print OCSP format.
3448 *) Make mkdef.pl parse some of the ASN1 macros and add apropriate
3449 entries for variables.
3452 *) Add functionality to apps/openssl.c for detecting locking
3453 problems: As the program is single-threaded, all we have
3454 to do is register a locking callback using an array for
3455 storing which locks are currently held by the program.
3458 *) Use a lock around the call to CRYPTO_get_ex_new_index() in
3459 SSL_get_ex_data_X509_STORE_idx(), which is used in
3460 ssl_verify_cert_chain() and thus can be called at any time
3461 during TLS/SSL handshakes so that thread-safety is essential.
3462 Unfortunately, the ex_data design is not at all suited
3463 for multi-threaded use, so it probably should be abolished.
3466 *) Added Broadcom "ubsec" ENGINE to OpenSSL.
3467 [Broadcom, tweaked and integrated by Geoff Thorpe]
3469 *) Move common extension printing code to new function
3470 X509V3_print_extensions(). Reorganise OCSP print routines and
3471 implement some needed OCSP ASN1 functions. Add OCSP extensions.
3474 *) New function X509_signature_print() to remove duplication in some
3478 *) Add a special meaning when SET OF and SEQUENCE OF flags are both
3479 set (this was treated exactly the same as SET OF previously). This
3480 is used to reorder the STACK representing the structure to match the
3481 encoding. This will be used to get round a problem where a PKCS7
3482 structure which was signed could not be verified because the STACK
3483 order did not reflect the encoded order.
3486 *) Reimplement the OCSP ASN1 module using the new code.
3489 *) Update the X509V3 code to permit the use of an ASN1_ITEM structure
3490 for its ASN1 operations. The old style function pointers still exist
3491 for now but they will eventually go away.
3494 *) Merge in replacement ASN1 code from the ASN1 branch. This almost
3495 completely replaces the old ASN1 functionality with a table driven
3496 encoder and decoder which interprets an ASN1_ITEM structure describing
3497 the ASN1 module. Compatibility with the existing ASN1 API (i2d,d2i) is
3498 largely maintained. Almost all of the old asn1_mac.h macro based ASN1
3499 has also been converted to the new form.
3502 *) Change BN_mod_exp_recp so that negative moduli are tolerated
3503 (the sign is ignored). Similarly, ignore the sign in BN_MONT_CTX_set
3504 so that BN_mod_exp_mont and BN_mod_exp_mont_word work
3505 for negative moduli.
3508 *) Fix BN_uadd and BN_usub: Always return non-negative results instead
3509 of not touching the result's sign bit.
3512 *) BN_div bugfix: If the result is 0, the sign (res->neg) must not be
3516 *) Changed the LHASH code to use prototypes for callbacks, and created
3517 macros to declare and implement thin (optionally static) functions
3518 that provide type-safety and avoid function pointer casting for the
3519 type-specific callbacks.
3522 *) Added Kerberos Cipher Suites to be used with TLS, as written in
3524 [Veers Staats <staatsvr@asc.hpc.mil>,
3525 Jeffrey Altman <jaltman@columbia.edu>, via Richard Levitte]
3527 *) Reformat the FAQ so the different questions and answers can be divided
3528 in sections depending on the subject.
3531 *) Have the zlib compression code load ZLIB.DLL dynamically under
3535 *) New function BN_mod_sqrt for computing square roots modulo a prime
3536 (using the probabilistic Tonelli-Shanks algorithm unless
3537 p == 3 (mod 4) or p == 5 (mod 8), which are cases that can
3538 be handled deterministically).
3539 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
3541 *) Make BN_mod_inverse faster by explicitly handling small quotients
3542 in the Euclid loop. (Speed gain about 20% for small moduli [256 or
3543 512 bits], about 30% for larger ones [1024 or 2048 bits].)
3546 *) New function BN_kronecker.
3549 *) Fix BN_gcd so that it works on negative inputs; the result is
3550 positive unless both parameters are zero.
3551 Previously something reasonably close to an infinite loop was
3552 possible because numbers could be growing instead of shrinking
3553 in the implementation of Euclid's algorithm.
3556 *) Fix BN_is_word() and BN_is_one() macros to take into account the
3557 sign of the number in question.
3559 Fix BN_is_word(a,w) to work correctly for w == 0.
3561 The old BN_is_word(a,w) macro is now called BN_abs_is_word(a,w)
3562 because its test if the absolute value of 'a' equals 'w'.
3563 Note that BN_abs_is_word does *not* handle w == 0 reliably;
3564 it exists mostly for use in the implementations of BN_is_zero(),
3565 BN_is_one(), and BN_is_word().
3568 *) New function BN_swap.
3571 *) Use BN_nnmod instead of BN_mod in crypto/bn/bn_exp.c so that
3572 the exponentiation functions are more likely to produce reasonable
3573 results on negative inputs.
3576 *) Change BN_mod_mul so that the result is always non-negative.
3577 Previously, it could be negative if one of the factors was negative;
3578 I don't think anyone really wanted that behaviour.
3581 *) Move BN_mod_... functions into new file crypto/bn/bn_mod.c
3582 (except for exponentiation, which stays in crypto/bn/bn_exp.c,
3583 and BN_mod_mul_reciprocal, which stays in crypto/bn/bn_recp.c)
3584 and add new functions:
3593 BN_mod_lshift1_quick
3597 These functions always generate non-negative results.
3599 BN_nnmod otherwise is like BN_mod (if BN_mod computes a remainder r
3600 such that |m| < r < 0, BN_nnmod will output rem + |m| instead).
3602 BN_mod_XXX_quick(r, a, [b,] m) generates the same result as
3603 BN_mod_XXX(r, a, [b,] m, ctx), but requires that a [and b]
3604 be reduced modulo m.
3605 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
3608 The following entry accidentily appeared in the CHANGES file
3609 distributed with OpenSSL 0.9.7. The modifications described in
3610 it do *not* apply to OpenSSL 0.9.7.
3612 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
3613 was actually never needed) and in BN_mul(). The removal in BN_mul()
3614 required a small change in bn_mul_part_recursive() and the addition
3615 of the functions bn_cmp_part_words(), bn_sub_part_words() and
3616 bn_add_part_words(), which do the same thing as bn_cmp_words(),
3617 bn_sub_words() and bn_add_words() except they take arrays with
3622 *) In 'openssl passwd', verify passwords read from the terminal
3623 unless the '-salt' option is used (which usually means that
3624 verification would just waste user's time since the resulting
3625 hash is going to be compared with some given password hash)
3626 or the new '-noverify' option is used.
3628 This is an incompatible change, but it does not affect
3629 non-interactive use of 'openssl passwd' (passwords on the command
3630 line, '-stdin' option, '-in ...' option) and thus should not
3634 *) Remove all references to RSAref, since there's no more need for it.
3637 *) Make DSO load along a path given through an environment variable
3638 (SHLIB_PATH) with shl_load().
3641 *) Constify the ENGINE code as a result of BIGNUM constification.
3642 Also constify the RSA code and most things related to it. In a
3643 few places, most notable in the depth of the ASN.1 code, ugly
3644 casts back to non-const were required (to be solved at a later
3648 *) Make it so the openssl application has all engines loaded by default.
3651 *) Constify the BIGNUM routines a little more.
3654 *) Add the following functions:
3656 ENGINE_load_cswift()
3658 ENGINE_load_atalla()
3660 ENGINE_load_builtin_engines()
3662 That way, an application can itself choose if external engines that
3663 are built-in in OpenSSL shall ever be used or not. The benefit is
3664 that applications won't have to be linked with libdl or other dso
3665 libraries unless it's really needed.
3667 Changed 'openssl engine' to load all engines on demand.
3668 Changed the engine header files to avoid the duplication of some
3669 declarations (they differed!).
3672 *) 'openssl engine' can now list capabilities.
3675 *) Better error reporting in 'openssl engine'.
3678 *) Never call load_dh_param(NULL) in s_server.
3681 *) Add engine application. It can currently list engines by name and
3682 identity, and test if they are actually available.
3685 *) Improve RPM specification file by forcing symbolic linking and making
3686 sure the installed documentation is also owned by root.root.
3687 [Damien Miller <djm@mindrot.org>]
3689 *) Give the OpenSSL applications more possibilities to make use of
3690 keys (public as well as private) handled by engines.
3693 *) Add OCSP code that comes from CertCo.
3696 *) Add VMS support for the Rijndael code.
3699 *) Added untested support for Nuron crypto accelerator.
3702 *) Add support for external cryptographic devices. This code was
3703 previously distributed separately as the "engine" branch.
3704 [Geoff Thorpe, Richard Levitte]
3706 *) Rework the filename-translation in the DSO code. It is now possible to
3707 have far greater control over how a "name" is turned into a filename
3708 depending on the operating environment and any oddities about the
3709 different shared library filenames on each system.
3712 *) Support threads on FreeBSD-elf in Configure.
3715 *) Fix for SHA1 assembly problem with MASM: it produces
3716 warnings about corrupt line number information when assembling
3717 with debugging information. This is caused by the overlapping
3719 [Bernd Matthes <mainbug@celocom.de>, Steve Henson]
3722 NCONF_get_number() has no error checking at all. As a replacement,
3723 NCONF_get_number_e() is defined (_e for "error checking") and is
3724 promoted strongly. The old NCONF_get_number is kept around for
3725 binary backward compatibility.
3726 Make it possible for methods to load from something other than a BIO,
3727 by providing a function pointer that is given a name instead of a BIO.
3728 For example, this could be used to load configuration data from an
3732 *) Fix for non blocking accept BIOs. Added new I/O special reason
3733 BIO_RR_ACCEPT to cover this case. Previously use of accept BIOs
3734 with non blocking I/O was not possible because no retry code was
3735 implemented. Also added new SSL code SSL_WANT_ACCEPT to cover
3739 *) Added the beginnings of Rijndael support.
3742 *) Fix for bug in DirectoryString mask setting. Add support for
3743 X509_NAME_print_ex() in 'req' and X509_print_ex() function
3744 to allow certificate printing to more controllable, additional
3745 'certopt' option to 'x509' to allow new printing options to be
3749 *) Clean old EAY MD5 hack from e_os.h.
3752 Changes between 0.9.6l and 0.9.6m [17 Mar 2004]
3754 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
3755 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
3756 [Joe Orton, Steve Henson]
3758 Changes between 0.9.6k and 0.9.6l [04 Nov 2003]
3760 *) Fix additional bug revealed by the NISCC test suite:
3762 Stop bug triggering large recursion when presented with
3763 certain ASN.1 tags (CVE-2003-0851)
3766 Changes between 0.9.6j and 0.9.6k [30 Sep 2003]
3768 *) Fix various bugs revealed by running the NISCC test suite:
3770 Stop out of bounds reads in the ASN1 code when presented with
3771 invalid tags (CVE-2003-0543 and CVE-2003-0544).
3773 If verify callback ignores invalid public key errors don't try to check
3774 certificate signature with the NULL public key.
3778 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
3779 if the server requested one: as stated in TLS 1.0 and SSL 3.0
3783 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
3784 extra data after the compression methods not only for TLS 1.0
3785 but also for SSL 3.0 (as required by the specification).
3786 [Bodo Moeller; problem pointed out by Matthias Loepfe]
3788 *) Change X509_certificate_type() to mark the key as exported/exportable
3789 when it's 512 *bits* long, not 512 bytes.
3792 Changes between 0.9.6i and 0.9.6j [10 Apr 2003]
3794 *) Countermeasure against the Klima-Pokorny-Rosa extension of
3795 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
3796 a protocol version number mismatch like a decryption error
3797 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
3800 *) Turn on RSA blinding by default in the default implementation
3801 to avoid a timing attack. Applications that don't want it can call
3802 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
3803 They would be ill-advised to do so in most cases.
3804 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
3806 *) Change RSA blinding code so that it works when the PRNG is not
3807 seeded (in this case, the secret RSA exponent is abused as
3808 an unpredictable seed -- if it is not unpredictable, there
3809 is no point in blinding anyway). Make RSA blinding thread-safe
3810 by remembering the creator's thread ID in rsa->blinding and
3811 having all other threads use local one-time blinding factors
3812 (this requires more computation than sharing rsa->blinding, but
3813 avoids excessive locking; and if an RSA object is not shared
3814 between threads, blinding will still be very fast).
3817 Changes between 0.9.6h and 0.9.6i [19 Feb 2003]
3819 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
3820 via timing by performing a MAC computation even if incorrrect
3821 block cipher padding has been found. This is a countermeasure
3822 against active attacks where the attacker has to distinguish
3823 between bad padding and a MAC verification error. (CVE-2003-0078)
3825 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
3826 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
3827 Martin Vuagnoux (EPFL, Ilion)]
3829 Changes between 0.9.6g and 0.9.6h [5 Dec 2002]
3831 *) New function OPENSSL_cleanse(), which is used to cleanse a section of
3832 memory from it's contents. This is done with a counter that will
3833 place alternating values in each byte. This can be used to solve
3834 two issues: 1) the removal of calls to memset() by highly optimizing
3835 compilers, and 2) cleansing with other values than 0, since those can
3836 be read through on certain media, for example a swap space on disk.
3839 *) Bugfix: client side session caching did not work with external caching,
3840 because the session->cipher setting was not restored when reloading
3841 from the external cache. This problem was masked, when
3842 SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG (part of SSL_OP_ALL) was set.
3843 (Found by Steve Haslam <steve@araqnid.ddts.net>.)
3846 *) Fix client_certificate (ssl/s2_clnt.c): The permissible total
3847 length of the REQUEST-CERTIFICATE message is 18 .. 34, not 17 .. 33.
3848 [Zeev Lieber <zeev-l@yahoo.com>]
3850 *) Undo an undocumented change introduced in 0.9.6e which caused
3851 repeated calls to OpenSSL_add_all_ciphers() and
3852 OpenSSL_add_all_digests() to be ignored, even after calling
3856 *) Change the default configuration reader to deal with last line not
3857 being properly terminated.
3860 *) Change X509_NAME_cmp() so it applies the special rules on handling
3861 DN values that are of type PrintableString, as well as RDNs of type
3862 emailAddress where the value has the type ia5String.
3863 [stefank@valicert.com via Richard Levitte]
3865 *) Add a SSL_SESS_CACHE_NO_INTERNAL_STORE flag to take over half
3866 the job SSL_SESS_CACHE_NO_INTERNAL_LOOKUP was inconsistently
3867 doing, define a new flag (SSL_SESS_CACHE_NO_INTERNAL) to be
3868 the bitwise-OR of the two for use by the majority of applications
3869 wanting this behaviour, and update the docs. The documented
3870 behaviour and actual behaviour were inconsistent and had been
3871 changing anyway, so this is more a bug-fix than a behavioural
3873 [Geoff Thorpe, diagnosed by Nadav Har'El]
3875 *) Don't impose a 16-byte length minimum on session IDs in ssl/s3_clnt.c
3876 (the SSL 3.0 and TLS 1.0 specifications allow any length up to 32 bytes).
3879 *) Fix initialization code race conditions in
3880 SSLv23_method(), SSLv23_client_method(), SSLv23_server_method(),
3881 SSLv2_method(), SSLv2_client_method(), SSLv2_server_method(),
3882 SSLv3_method(), SSLv3_client_method(), SSLv3_server_method(),
3883 TLSv1_method(), TLSv1_client_method(), TLSv1_server_method(),
3884 ssl2_get_cipher_by_char(),
3885 ssl3_get_cipher_by_char().
3886 [Patrick McCormick <patrick@tellme.com>, Bodo Moeller]
3888 *) Reorder cleanup sequence in SSL_CTX_free(): only remove the ex_data after
3889 the cached sessions are flushed, as the remove_cb() might use ex_data
3890 contents. Bug found by Sam Varshavchik <mrsam@courier-mta.com>
3891 (see [openssl.org #212]).
3892 [Geoff Thorpe, Lutz Jaenicke]
3894 *) Fix typo in OBJ_txt2obj which incorrectly passed the content
3895 length, instead of the encoding length to d2i_ASN1_OBJECT.
3898 Changes between 0.9.6f and 0.9.6g [9 Aug 2002]
3900 *) [In 0.9.6g-engine release:]
3901 Fix crypto/engine/vendor_defns/cswift.h for WIN32 (use '_stdcall').
3902 [Lynn Gazis <lgazis@rainbow.com>]
3904 Changes between 0.9.6e and 0.9.6f [8 Aug 2002]
3906 *) Fix ASN1 checks. Check for overflow by comparing with LONG_MAX
3907 and get fix the header length calculation.
3908 [Florian Weimer <Weimer@CERT.Uni-Stuttgart.DE>,
3909 Alon Kantor <alonk@checkpoint.com> (and others),
3912 *) Use proper error handling instead of 'assertions' in buffer
3913 overflow checks added in 0.9.6e. This prevents DoS (the
3914 assertions could call abort()).
3915 [Arne Ansper <arne@ats.cyber.ee>, Bodo Moeller]
3917 Changes between 0.9.6d and 0.9.6e [30 Jul 2002]
3919 *) Add various sanity checks to asn1_get_length() to reject
3920 the ASN1 length bytes if they exceed sizeof(long), will appear
3921 negative or the content length exceeds the length of the
3923 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
3925 *) Fix cipher selection routines: ciphers without encryption had no flags
3926 for the cipher strength set and where therefore not handled correctly
3927 by the selection routines (PR #130).
3930 *) Fix EVP_dsa_sha macro.
3934 SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS
3935 for disabling the SSL 3.0/TLS 1.0 CBC vulnerability countermeasure
3936 that was added in OpenSSL 0.9.6d.
3938 As the countermeasure turned out to be incompatible with some
3939 broken SSL implementations, the new option is part of SSL_OP_ALL.
3940 SSL_OP_ALL is usually employed when compatibility with weird SSL
3941 implementations is desired (e.g. '-bugs' option to 's_client' and
3942 's_server'), so the new option is automatically set in many
3946 *) Changes in security patch:
3948 Changes marked "(CHATS)" were sponsored by the Defense Advanced
3949 Research Projects Agency (DARPA) and Air Force Research Laboratory,
3950 Air Force Materiel Command, USAF, under agreement number
3953 *) Add various sanity checks to asn1_get_length() to reject
3954 the ASN1 length bytes if they exceed sizeof(long), will appear
3955 negative or the content length exceeds the length of the
3956 supplied buffer. (CVE-2002-0659)
3957 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
3959 *) Assertions for various potential buffer overflows, not known to
3961 [Ben Laurie (CHATS)]
3963 *) Various temporary buffers to hold ASCII versions of integers were
3964 too small for 64 bit platforms. (CVE-2002-0655)
3965 [Matthew Byng-Maddick <mbm@aldigital.co.uk> and Ben Laurie (CHATS)>
3967 *) Remote buffer overflow in SSL3 protocol - an attacker could
3968 supply an oversized session ID to a client. (CVE-2002-0656)
3969 [Ben Laurie (CHATS)]
3971 *) Remote buffer overflow in SSL2 protocol - an attacker could
3972 supply an oversized client master key. (CVE-2002-0656)
3973 [Ben Laurie (CHATS)]
3975 Changes between 0.9.6c and 0.9.6d [9 May 2002]
3977 *) Fix crypto/asn1/a_sign.c so that 'parameters' is omitted (not
3978 encoded as NULL) with id-dsa-with-sha1.
3979 [Nils Larsch <nla@trustcenter.de>; problem pointed out by Bodo Moeller]
3981 *) Check various X509_...() return values in apps/req.c.
3982 [Nils Larsch <nla@trustcenter.de>]
3984 *) Fix BASE64 decode (EVP_DecodeUpdate) for data with CR/LF ended lines:
3985 an end-of-file condition would erronously be flagged, when the CRLF
3986 was just at the end of a processed block. The bug was discovered when
3987 processing data through a buffering memory BIO handing the data to a
3988 BASE64-decoding BIO. Bug fund and patch submitted by Pavel Tsekov
3989 <ptsekov@syntrex.com> and Nedelcho Stanev.
3992 *) Implement a countermeasure against a vulnerability recently found
3993 in CBC ciphersuites in SSL 3.0/TLS 1.0: Send an empty fragment
3994 before application data chunks to avoid the use of known IVs
3995 with data potentially chosen by the attacker.
3998 *) Fix length checks in ssl3_get_client_hello().
4001 *) TLS/SSL library bugfix: use s->s3->in_read_app_data differently
4002 to prevent ssl3_read_internal() from incorrectly assuming that
4003 ssl3_read_bytes() found application data while handshake
4004 processing was enabled when in fact s->s3->in_read_app_data was
4005 merely automatically cleared during the initial handshake.
4006 [Bodo Moeller; problem pointed out by Arne Ansper <arne@ats.cyber.ee>]
4008 *) Fix object definitions for Private and Enterprise: they were not
4009 recognized in their shortname (=lowercase) representation. Extend
4010 obj_dat.pl to issue an error when using undefined keywords instead
4011 of silently ignoring the problem (Svenning Sorensen
4012 <sss@sss.dnsalias.net>).
4015 *) Fix DH_generate_parameters() so that it works for 'non-standard'
4016 generators, i.e. generators other than 2 and 5. (Previously, the
4017 code did not properly initialise the 'add' and 'rem' values to
4018 BN_generate_prime().)
4020 In the new general case, we do not insist that 'generator' is
4021 actually a primitive root: This requirement is rather pointless;
4022 a generator of the order-q subgroup is just as good, if not
4026 *) Map new X509 verification errors to alerts. Discovered and submitted by
4027 Tom Wu <tom@arcot.com>.
4030 *) Fix ssl3_pending() (ssl/s3_lib.c) to prevent SSL_pending() from
4031 returning non-zero before the data has been completely received
4032 when using non-blocking I/O.
4033 [Bodo Moeller; problem pointed out by John Hughes]
4035 *) Some of the ciphers missed the strength entry (SSL_LOW etc).
4036 [Ben Laurie, Lutz Jaenicke]
4038 *) Fix bug in SSL_clear(): bad sessions were not removed (found by
4039 Yoram Zahavi <YoramZ@gilian.com>).
4042 *) Add information about CygWin 1.3 and on, and preserve proper
4043 configuration for the versions before that.
4044 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
4046 *) Make removal from session cache (SSL_CTX_remove_session()) more robust:
4047 check whether we deal with a copy of a session and do not delete from
4048 the cache in this case. Problem reported by "Izhar Shoshani Levi"
4049 <izhar@checkpoint.com>.
4052 *) Do not store session data into the internal session cache, if it
4053 is never intended to be looked up (SSL_SESS_CACHE_NO_INTERNAL_LOOKUP
4054 flag is set). Proposed by Aslam <aslam@funk.com>.
4057 *) Have ASN1_BIT_STRING_set_bit() really clear a bit when the requested
4061 *) [In 0.9.6d-engine release:]
4062 Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
4063 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
4065 *) Add the configuration target linux-s390x.
4066 [Neale Ferguson <Neale.Ferguson@SoftwareAG-USA.com> via Richard Levitte]
4068 *) The earlier bugfix for the SSL3_ST_SW_HELLO_REQ_C case of
4069 ssl3_accept (ssl/s3_srvr.c) incorrectly used a local flag
4070 variable as an indication that a ClientHello message has been
4071 received. As the flag value will be lost between multiple
4072 invocations of ssl3_accept when using non-blocking I/O, the
4073 function may not be aware that a handshake has actually taken
4074 place, thus preventing a new session from being added to the
4077 To avoid this problem, we now set s->new_session to 2 instead of
4078 using a local variable.
4079 [Lutz Jaenicke, Bodo Moeller]
4081 *) Bugfix: Return -1 from ssl3_get_server_done (ssl3/s3_clnt.c)
4082 if the SSL_R_LENGTH_MISMATCH error is detected.
4083 [Geoff Thorpe, Bodo Moeller]
4085 *) New 'shared_ldflag' column in Configure platform table.
4088 *) Fix EVP_CIPHER_mode macro.
4089 ["Dan S. Camper" <dan@bti.net>]
4091 *) Fix ssl3_read_bytes (ssl/s3_pkt.c): To ignore messages of unknown
4092 type, we must throw them away by setting rr->length to 0.
4093 [D P Chang <dpc@qualys.com>]
4095 Changes between 0.9.6b and 0.9.6c [21 dec 2001]
4097 *) Fix BN_rand_range bug pointed out by Dominikus Scherkl
4098 <Dominikus.Scherkl@biodata.com>. (The previous implementation
4099 worked incorrectly for those cases where range = 10..._2 and
4100 3*range is two bits longer than range.)
4103 *) Only add signing time to PKCS7 structures if it is not already
4107 *) Fix crypto/objects/objects.h: "ld-ce" should be "id-ce",
4108 OBJ_ld_ce should be OBJ_id_ce.
4109 Also some ip-pda OIDs in crypto/objects/objects.txt were
4110 incorrect (cf. RFC 3039).
4111 [Matt Cooper, Frederic Giudicelli, Bodo Moeller]
4113 *) Release CRYPTO_LOCK_DYNLOCK when CRYPTO_destroy_dynlockid()
4114 returns early because it has nothing to do.
4115 [Andy Schneider <andy.schneider@bjss.co.uk>]
4117 *) [In 0.9.6c-engine release:]
4118 Fix mutex callback return values in crypto/engine/hw_ncipher.c.
4119 [Andy Schneider <andy.schneider@bjss.co.uk>]
4121 *) [In 0.9.6c-engine release:]
4122 Add support for Cryptographic Appliance's keyserver technology.
4123 (Use engine 'keyclient')
4124 [Cryptographic Appliances and Geoff Thorpe]
4126 *) Add a configuration entry for OS/390 Unix. The C compiler 'c89'
4127 is called via tools/c89.sh because arguments have to be
4128 rearranged (all '-L' options must appear before the first object
4130 [Richard Shapiro <rshapiro@abinitio.com>]
4132 *) [In 0.9.6c-engine release:]
4133 Add support for Broadcom crypto accelerator cards, backported
4135 [Broadcom, Nalin Dahyabhai <nalin@redhat.com>, Mark Cox]
4137 *) [In 0.9.6c-engine release:]
4138 Add support for SureWare crypto accelerator cards from
4139 Baltimore Technologies. (Use engine 'sureware')
4140 [Baltimore Technologies and Mark Cox]
4142 *) [In 0.9.6c-engine release:]
4143 Add support for crypto accelerator cards from Accelerated
4144 Encryption Processing, www.aep.ie. (Use engine 'aep')
4145 [AEP Inc. and Mark Cox]
4147 *) Add a configuration entry for gcc on UnixWare.
4148 [Gary Benson <gbenson@redhat.com>]
4150 *) Change ssl/s2_clnt.c and ssl/s2_srvr.c so that received handshake
4151 messages are stored in a single piece (fixed-length part and
4152 variable-length part combined) and fix various bugs found on the way.
4155 *) Disable caching in BIO_gethostbyname(), directly use gethostbyname()
4156 instead. BIO_gethostbyname() does not know what timeouts are
4157 appropriate, so entries would stay in cache even when they have
4159 [Bodo Moeller; problem pointed out by Rich Salz <rsalz@zolera.com>
4161 *) Change ssl23_get_client_hello (ssl/s23_srvr.c) behaviour when
4162 faced with a pathologically small ClientHello fragment that does
4163 not contain client_version: Instead of aborting with an error,
4164 simply choose the highest available protocol version (i.e.,
4165 TLS 1.0 unless it is disabled). In practice, ClientHello
4166 messages are never sent like this, but this change gives us
4167 strictly correct behaviour at least for TLS.
4170 *) Fix SSL handshake functions and SSL_clear() such that SSL_clear()
4171 never resets s->method to s->ctx->method when called from within
4172 one of the SSL handshake functions.
4173 [Bodo Moeller; problem pointed out by Niko Baric]
4175 *) In ssl3_get_client_hello (ssl/s3_srvr.c), generate a fatal alert
4176 (sent using the client's version number) if client_version is
4177 smaller than the protocol version in use. Also change
4178 ssl23_get_client_hello (ssl/s23_srvr.c) to select TLS 1.0 if
4179 the client demanded SSL 3.0 but only TLS 1.0 is enabled; then
4180 the client will at least see that alert.
4183 *) Fix ssl3_get_message (ssl/s3_both.c) to handle message fragmentation
4187 *) Avoid infinite loop in ssl3_get_message (ssl/s3_both.c) if a
4188 client receives HelloRequest while in a handshake.
4189 [Bodo Moeller; bug noticed by Andy Schneider <andy.schneider@bjss.co.uk>]
4191 *) Bugfix in ssl3_accept (ssl/s3_srvr.c): Case SSL3_ST_SW_HELLO_REQ_C
4192 should end in 'break', not 'goto end' which circuments various
4193 cleanups done in state SSL_ST_OK. But session related stuff
4194 must be disabled for SSL_ST_OK in the case that we just sent a
4197 Also avoid some overhead by not calling ssl_init_wbio_buffer()
4198 before just sending a HelloRequest.
4199 [Bodo Moeller, Eric Rescorla <ekr@rtfm.com>]
4201 *) Fix ssl/s3_enc.c, ssl/t1_enc.c and ssl/s3_pkt.c so that we don't
4202 reveal whether illegal block cipher padding was found or a MAC
4203 verification error occured. (Neither SSLerr() codes nor alerts
4204 are directly visible to potential attackers, but the information
4205 may leak via logfiles.)
4207 Similar changes are not required for the SSL 2.0 implementation
4208 because the number of padding bytes is sent in clear for SSL 2.0,
4209 and the extra bytes are just ignored. However ssl/s2_pkt.c
4210 failed to verify that the purported number of padding bytes is in
4214 *) Add OpenUNIX-8 support including shared libraries
4215 (Boyd Lynn Gerber <gerberb@zenez.com>).
4218 *) Improve RSA_padding_check_PKCS1_OAEP() check again to avoid
4219 'wristwatch attack' using huge encoding parameters (cf.
4220 James H. Manger's CRYPTO 2001 paper). Note that the
4221 RSA_PKCS1_OAEP_PADDING case of RSA_private_decrypt() does not use
4222 encoding parameters and hence was not vulnerable.
4225 *) BN_sqr() bug fix.
4226 [Ulf Möller, reported by Jim Ellis <jim.ellis@cavium.com>]
4228 *) Rabin-Miller test analyses assume uniformly distributed witnesses,
4229 so use BN_pseudo_rand_range() instead of using BN_pseudo_rand()
4230 followed by modular reduction.
4231 [Bodo Moeller; pointed out by Adam Young <AYoung1@NCSUS.JNJ.COM>]
4233 *) Add BN_pseudo_rand_range() with obvious functionality: BN_rand_range()
4234 equivalent based on BN_pseudo_rand() instead of BN_rand().
4237 *) s3_srvr.c: allow sending of large client certificate lists (> 16 kB).
4238 This function was broken, as the check for a new client hello message
4239 to handle SGC did not allow these large messages.
4240 (Tracked down by "Douglas E. Engert" <deengert@anl.gov>.)
4243 *) Add alert descriptions for TLSv1 to SSL_alert_desc_string[_long]().
4246 *) Fix buggy behaviour of BIO_get_num_renegotiates() and BIO_ctrl()
4247 for BIO_C_GET_WRITE_BUF_SIZE ("Stephen Hinton" <shinton@netopia.com>).
4250 *) Rework the configuration and shared library support for Tru64 Unix.
4251 The configuration part makes use of modern compiler features and
4252 still retains old compiler behavior for those that run older versions
4253 of the OS. The shared library support part includes a variant that
4254 uses the RPATH feature, and is available through the special
4255 configuration target "alpha-cc-rpath", which will never be selected
4257 [Tim Mooney <mooney@dogbert.cc.ndsu.NoDak.edu> via Richard Levitte]
4259 *) In ssl3_get_key_exchange (ssl/s3_clnt.c), call ssl3_get_message()
4260 with the same message size as in ssl3_get_certificate_request().
4261 Otherwise, if no ServerKeyExchange message occurs, CertificateRequest
4262 messages might inadvertently be reject as too long.
4263 [Petr Lampa <lampa@fee.vutbr.cz>]
4265 *) Enhanced support for IA-64 Unix platforms (well, Linux and HP-UX).
4268 *) Modified SSL library such that the verify_callback that has been set
4269 specificly for an SSL object with SSL_set_verify() is actually being
4270 used. Before the change, a verify_callback set with this function was
4271 ignored and the verify_callback() set in the SSL_CTX at the time of
4272 the call was used. New function X509_STORE_CTX_set_verify_cb() introduced
4273 to allow the necessary settings.
4276 *) Initialize static variable in crypto/dsa/dsa_lib.c and crypto/dh/dh_lib.c
4277 explicitly to NULL, as at least on Solaris 8 this seems not always to be
4278 done automatically (in contradiction to the requirements of the C
4279 standard). This made problems when used from OpenSSH.
4282 *) In OpenSSL 0.9.6a and 0.9.6b, crypto/dh/dh_key.c ignored
4283 dh->length and always used
4285 BN_rand_range(priv_key, dh->p).
4287 BN_rand_range() is not necessary for Diffie-Hellman, and this
4288 specific range makes Diffie-Hellman unnecessarily inefficient if
4289 dh->length (recommended exponent length) is much smaller than the
4290 length of dh->p. We could use BN_rand_range() if the order of
4291 the subgroup was stored in the DH structure, but we only have
4296 BN_rand(priv_key, l, ...)
4298 where 'l' is dh->length if this is defined, or BN_num_bits(dh->p)-1
4304 RSA_eay_public_encrypt
4305 RSA_eay_private_decrypt
4306 RSA_eay_private_encrypt (signing)
4307 RSA_eay_public_decrypt (signature verification)
4309 (default implementations for RSA_public_encrypt,
4310 RSA_private_decrypt, RSA_private_encrypt, RSA_public_decrypt),
4311 always reject numbers >= n.
4314 *) In crypto/rand/md_rand.c, use a new short-time lock CRYPTO_LOCK_RAND2
4315 to synchronize access to 'locking_thread'. This is necessary on
4316 systems where access to 'locking_thread' (an 'unsigned long'
4317 variable) is not atomic.
4320 *) In crypto/rand/md_rand.c, set 'locking_thread' to current thread's ID
4321 *before* setting the 'crypto_lock_rand' flag. The previous code had
4322 a race condition if 0 is a valid thread ID.
4323 [Travis Vitek <vitek@roguewave.com>]
4325 *) Add support for shared libraries under Irix.
4326 [Albert Chin-A-Young <china@thewrittenword.com>]
4328 *) Add configuration option to build on Linux on both big-endian and
4330 [Ralf Baechle <ralf@uni-koblenz.de>]
4332 *) Add the possibility to create shared libraries on HP-UX.
4335 Changes between 0.9.6a and 0.9.6b [9 Jul 2001]
4337 *) Change ssleay_rand_bytes (crypto/rand/md_rand.c)
4338 to avoid a SSLeay/OpenSSL PRNG weakness pointed out by
4339 Markku-Juhani O. Saarinen <markku-juhani.saarinen@nokia.com>:
4340 PRNG state recovery was possible based on the output of
4341 one PRNG request appropriately sized to gain knowledge on
4342 'md' followed by enough consecutive 1-byte PRNG requests
4343 to traverse all of 'state'.
4345 1. When updating 'md_local' (the current thread's copy of 'md')
4346 during PRNG output generation, hash all of the previous
4347 'md_local' value, not just the half used for PRNG output.
4349 2. Make the number of bytes from 'state' included into the hash
4350 independent from the number of PRNG bytes requested.
4352 The first measure alone would be sufficient to avoid
4353 Markku-Juhani's attack. (Actually it had never occurred
4354 to me that the half of 'md_local' used for chaining was the
4355 half from which PRNG output bytes were taken -- I had always
4356 assumed that the secret half would be used.) The second
4357 measure makes sure that additional data from 'state' is never
4358 mixed into 'md_local' in small portions; this heuristically
4359 further strengthens the PRNG.
4362 *) Fix crypto/bn/asm/mips3.s.
4365 *) When only the key is given to "enc", the IV is undefined. Print out
4366 an error message in this case.
4369 *) Handle special case when X509_NAME is empty in X509 printing routines.
4372 *) In dsa_do_verify (crypto/dsa/dsa_ossl.c), verify that r and s are
4373 positive and less than q.
4376 *) Don't change *pointer in CRYPTO_add_lock() is add_lock_callback is
4377 used: it isn't thread safe and the add_lock_callback should handle
4379 [Paul Rose <Paul.Rose@bridge.com>]
4381 *) Verify that incoming data obeys the block size in
4382 ssl3_enc (ssl/s3_enc.c) and tls1_enc (ssl/t1_enc.c).
4386 [Ulf Möller, Bodo Möller]
4388 *) The countermeasure against Bleichbacher's attack on PKCS #1 v1.5
4389 RSA encryption was accidentally removed in s3_srvr.c in OpenSSL 0.9.5
4390 when fixing the server behaviour for backwards-compatible 'client
4391 hello' messages. (Note that the attack is impractical against
4392 SSL 3.0 and TLS 1.0 anyway because length and version checking
4393 means that the probability of guessing a valid ciphertext is
4394 around 2^-40; see section 5 in Bleichenbacher's CRYPTO '98
4397 Before 0.9.5, the countermeasure (hide the error by generating a
4398 random 'decryption result') did not work properly because
4399 ERR_clear_error() was missing, meaning that SSL_get_error() would
4400 detect the supposedly ignored error.
4402 Both problems are now fixed.
4405 *) In crypto/bio/bf_buff.c, increase DEFAULT_BUFFER_SIZE to 4096
4406 (previously it was 1024).
4409 *) Fix for compatibility mode trust settings: ignore trust settings
4410 unless some valid trust or reject settings are present.
4413 *) Fix for blowfish EVP: its a variable length cipher.
4416 *) Fix various bugs related to DSA S/MIME verification. Handle missing
4417 parameters in DSA public key structures and return an error in the
4418 DSA routines if parameters are absent.
4421 *) In versions up to 0.9.6, RAND_file_name() resorted to file ".rnd"
4422 in the current directory if neither $RANDFILE nor $HOME was set.
4423 RAND_file_name() in 0.9.6a returned NULL in this case. This has
4424 caused some confusion to Windows users who haven't defined $HOME.
4425 Thus RAND_file_name() is changed again: e_os.h can define a
4426 DEFAULT_HOME, which will be used if $HOME is not set.
4427 For Windows, we use "C:"; on other platforms, we still require
4428 environment variables.
4430 *) Move 'if (!initialized) RAND_poll()' into regions protected by
4431 CRYPTO_LOCK_RAND. This is not strictly necessary, but avoids
4432 having multiple threads call RAND_poll() concurrently.
4435 *) In crypto/rand/md_rand.c, replace 'add_do_not_lock' flag by a
4436 combination of a flag and a thread ID variable.
4437 Otherwise while one thread is in ssleay_rand_bytes (which sets the
4438 flag), *other* threads can enter ssleay_add_bytes without obeying
4439 the CRYPTO_LOCK_RAND lock (and may even illegally release the lock
4440 that they do not hold after the first thread unsets add_do_not_lock).
4443 *) Change bctest again: '-x' expressions are not available in all
4447 Changes between 0.9.6 and 0.9.6a [5 Apr 2001]
4449 *) Fix a couple of memory leaks in PKCS7_dataDecode()
4450 [Steve Henson, reported by Heyun Zheng <hzheng@atdsprint.com>]
4452 *) Change Configure and Makefiles to provide EXE_EXT, which will contain
4453 the default extension for executables, if any. Also, make the perl
4454 scripts that use symlink() to test if it really exists and use "cp"
4455 if it doesn't. All this made OpenSSL compilable and installable in
4459 *) Fix for asn1_GetSequence() for indefinite length constructed data.
4460 If SEQUENCE is length is indefinite just set c->slen to the total
4461 amount of data available.
4462 [Steve Henson, reported by shige@FreeBSD.org]
4463 [This change does not apply to 0.9.7.]
4465 *) Change bctest to avoid here-documents inside command substitution
4466 (workaround for FreeBSD /bin/sh bug).
4467 For compatibility with Ultrix, avoid shell functions (introduced
4468 in the bctest version that searches along $PATH).
4471 *) Rename 'des_encrypt' to 'des_encrypt1'. This avoids the clashes
4472 with des_encrypt() defined on some operating systems, like Solaris
4476 *) Check the result of RSA-CRT (see D. Boneh, R. DeMillo, R. Lipton:
4477 On the Importance of Eliminating Errors in Cryptographic
4478 Computations, J. Cryptology 14 (2001) 2, 101-119,
4479 http://theory.stanford.edu/~dabo/papers/faults.ps.gz).
4482 *) MIPS assembler BIGNUM division bug fix.
4485 *) Disabled incorrect Alpha assembler code.
4488 *) Fix PKCS#7 decode routines so they correctly update the length
4489 after reading an EOC for the EXPLICIT tag.
4491 [This change does not apply to 0.9.7.]
4493 *) Fix bug in PKCS#12 key generation routines. This was triggered
4494 if a 3DES key was generated with a 0 initial byte. Include
4495 PKCS12_BROKEN_KEYGEN compilation option to retain the old
4496 (but broken) behaviour.
4499 *) Enhance bctest to search for a working bc along $PATH and print
4501 [Tim Rice <tim@multitalents.net> via Richard Levitte]
4503 *) Fix memory leaks in err.c: free err_data string if necessary;
4504 don't write to the wrong index in ERR_set_error_data.
4507 *) Implement ssl23_peek (analogous to ssl23_read), which previously
4511 *) Replace rdtsc with _emit statements for VC++ version 5.
4512 [Jeremy Cooper <jeremy@baymoo.org>]
4514 *) Make it possible to reuse SSLv2 sessions.
4517 *) In copy_email() check for >= 0 as a return value for
4518 X509_NAME_get_index_by_NID() since 0 is a valid index.
4519 [Steve Henson reported by Massimiliano Pala <madwolf@opensca.org>]
4521 *) Avoid coredump with unsupported or invalid public keys by checking if
4522 X509_get_pubkey() fails in PKCS7_verify(). Fix memory leak when
4523 PKCS7_verify() fails with non detached data.
4526 *) Don't use getenv in library functions when run as setuid/setgid.
4527 New function OPENSSL_issetugid().
4530 *) Avoid false positives in memory leak detection code (crypto/mem_dbg.c)
4531 due to incorrect handling of multi-threading:
4533 1. Fix timing glitch in the MemCheck_off() portion of CRYPTO_mem_ctrl().
4535 2. Fix logical glitch in is_MemCheck_on() aka CRYPTO_is_mem_check_on().
4537 3. Count how many times MemCheck_off() has been called so that
4538 nested use can be treated correctly. This also avoids
4539 inband-signalling in the previous code (which relied on the
4540 assumption that thread ID 0 is impossible).
4543 *) Add "-rand" option also to s_client and s_server.
4546 *) Fix CPU detection on Irix 6.x.
4547 [Kurt Hockenbury <khockenb@stevens-tech.edu> and
4548 "Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
4550 *) Fix X509_NAME bug which produced incorrect encoding if X509_NAME
4553 [This change does not apply to 0.9.7.]
4555 *) Use the cached encoding of an X509_NAME structure rather than
4556 copying it. This is apparently the reason for the libsafe "errors"
4557 but the code is actually correct.
4560 *) Add new function BN_rand_range(), and fix DSA_sign_setup() to prevent
4561 Bleichenbacher's DSA attack.
4562 Extend BN_[pseudo_]rand: As before, top=1 forces the highest two bits
4563 to be set and top=0 forces the highest bit to be set; top=-1 is new
4564 and leaves the highest bit random.
4565 [Ulf Moeller, Bodo Moeller]
4567 *) In the NCONF_...-based implementations for CONF_... queries
4568 (crypto/conf/conf_lib.c), if the input LHASH is NULL, avoid using
4569 a temporary CONF structure with the data component set to NULL
4570 (which gives segmentation faults in lh_retrieve).
4571 Instead, use NULL for the CONF pointer in CONF_get_string and
4572 CONF_get_number (which may use environment variables) and directly
4573 return NULL from CONF_get_section.
4576 *) Fix potential buffer overrun for EBCDIC.
4579 *) Tolerate nonRepudiation as being valid for S/MIME signing and certSign
4580 keyUsage if basicConstraints absent for a CA.
4583 *) Make SMIME_write_PKCS7() write mail header values with a format that
4584 is more generally accepted (no spaces before the semicolon), since
4585 some programs can't parse those values properly otherwise. Also make
4586 sure BIO's that break lines after each write do not create invalid
4590 *) Make the CRL encoding routines work with empty SEQUENCE OF. The
4591 macros previously used would not encode an empty SEQUENCE OF
4592 and break the signature.
4594 [This change does not apply to 0.9.7.]
4596 *) Zero the premaster secret after deriving the master secret in
4600 *) Add some EVP_add_digest_alias registrations (as found in
4601 OpenSSL_add_all_digests()) to SSL_library_init()
4602 aka OpenSSL_add_ssl_algorithms(). This provides improved
4603 compatibility with peers using X.509 certificates
4604 with unconventional AlgorithmIdentifier OIDs.
4607 *) Fix for Irix with NO_ASM.
4608 ["Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
4610 *) ./config script fixes.
4611 [Ulf Moeller, Richard Levitte]
4613 *) Fix 'openssl passwd -1'.
4616 *) Change PKCS12_key_gen_asc() so it can cope with non null
4617 terminated strings whose length is passed in the passlen
4618 parameter, for example from PEM callbacks. This was done
4619 by adding an extra length parameter to asc2uni().
4620 [Steve Henson, reported by <oddissey@samsung.co.kr>]
4622 *) Fix C code generated by 'openssl dsaparam -C': If a BN_bin2bn
4623 call failed, free the DSA structure.
4626 *) Fix to uni2asc() to cope with zero length Unicode strings.
4627 These are present in some PKCS#12 files.
4630 *) Increase s2->wbuf allocation by one byte in ssl2_new (ssl/s2_lib.c).
4631 Otherwise do_ssl_write (ssl/s2_pkt.c) will write beyond buffer limits
4632 when writing a 32767 byte record.
4633 [Bodo Moeller; problem reported by Eric Day <eday@concentric.net>]
4635 *) In RSA_eay_public_{en,ed}crypt and RSA_eay_mod_exp (rsa_eay.c),
4636 obtain lock CRYPTO_LOCK_RSA before setting rsa->_method_mod_{n,p,q}.
4638 (RSA objects have a reference count access to which is protected
4639 by CRYPTO_LOCK_RSA [see rsa_lib.c, s3_srvr.c, ssl_cert.c, ssl_rsa.c],
4640 so they are meant to be shared between threads.)
4641 [Bodo Moeller, Geoff Thorpe; original patch submitted by
4642 "Reddie, Steven" <Steven.Reddie@ca.com>]
4644 *) Fix a deadlock in CRYPTO_mem_leaks().
4647 *) Use better test patterns in bntest.
4650 *) rand_win.c fix for Borland C.
4653 *) BN_rshift bugfix for n == 0.
4656 *) Add a 'bctest' script that checks for some known 'bc' bugs
4657 so that 'make test' does not abort just because 'bc' is broken.
4660 *) Store verify_result within SSL_SESSION also for client side to
4661 avoid potential security hole. (Re-used sessions on the client side
4662 always resulted in verify_result==X509_V_OK, not using the original
4663 result of the server certificate verification.)
4666 *) Fix ssl3_pending: If the record in s->s3->rrec is not of type
4667 SSL3_RT_APPLICATION_DATA, return 0.
4668 Similarly, change ssl2_pending to return 0 if SSL_in_init(s) is true.
4672 Both ssl2_peek and ssl3_peek, which were totally broken in earlier
4673 releases, have been re-implemented by renaming the previous
4674 implementations of ssl2_read and ssl3_read to ssl2_read_internal
4675 and ssl3_read_internal, respectively, and adding 'peek' parameters
4676 to them. The new ssl[23]_{read,peek} functions are calls to
4677 ssl[23]_read_internal with the 'peek' flag set appropriately.
4678 A 'peek' parameter has also been added to ssl3_read_bytes, which
4679 does the actual work for ssl3_read_internal.
4682 *) Initialise "ex_data" member of RSA/DSA/DH structures prior to calling
4683 the method-specific "init()" handler. Also clean up ex_data after
4684 calling the method-specific "finish()" handler. Previously, this was
4685 happening the other way round.
4688 *) Increase BN_CTX_NUM (the number of BIGNUMs in a BN_CTX) to 16.
4689 The previous value, 12, was not always sufficient for BN_mod_exp().
4692 *) Make sure that shared libraries get the internal name engine with
4693 the full version number and not just 0. This should mark the
4694 shared libraries as not backward compatible. Of course, this should
4695 be changed again when we can guarantee backward binary compatibility.
4698 *) Fix typo in get_cert_by_subject() in by_dir.c
4699 [Jean-Marc Desperrier <jean-marc.desperrier@certplus.com>]
4701 *) Rework the system to generate shared libraries:
4703 - Make note of the expected extension for the shared libraries and
4704 if there is a need for symbolic links from for example libcrypto.so.0
4705 to libcrypto.so.0.9.7. There is extended info in Configure for
4708 - Make as few rebuilds of the shared libraries as possible.
4710 - Still avoid linking the OpenSSL programs with the shared libraries.
4712 - When installing, install the shared libraries separately from the
4716 *) Fix SSL_CTX_set_read_ahead macro to actually use its argument.
4718 Copy SSL_CTX's read_ahead flag to SSL object directly in SSL_new
4719 and not in SSL_clear because the latter is also used by the
4720 accept/connect functions; previously, the settings made by
4721 SSL_set_read_ahead would be lost during the handshake.
4722 [Bodo Moeller; problems reported by Anders Gertz <gertz@epact.se>]
4724 *) Correct util/mkdef.pl to be selective about disabled algorithms.
4725 Previously, it would create entries for disableed algorithms no
4729 *) Added several new manual pages for SSL_* function.
4732 Changes between 0.9.5a and 0.9.6 [24 Sep 2000]
4734 *) In ssl23_get_client_hello, generate an error message when faced
4735 with an initial SSL 3.0/TLS record that is too small to contain the
4736 first two bytes of the ClientHello message, i.e. client_version.
4737 (Note that this is a pathologic case that probably has never happened
4738 in real life.) The previous approach was to use the version number
4739 from the record header as a substitute; but our protocol choice
4740 should not depend on that one because it is not authenticated
4741 by the Finished messages.
4744 *) More robust randomness gathering functions for Windows.
4745 [Jeffrey Altman <jaltman@columbia.edu>]
4747 *) For compatibility reasons if the flag X509_V_FLAG_ISSUER_CHECK is
4748 not set then we don't setup the error code for issuer check errors
4749 to avoid possibly overwriting other errors which the callback does
4750 handle. If an application does set the flag then we assume it knows
4751 what it is doing and can handle the new informational codes
4755 *) Fix for a nasty bug in ASN1_TYPE handling. ASN1_TYPE is used for
4756 a general "ANY" type, as such it should be able to decode anything
4757 including tagged types. However it didn't check the class so it would
4758 wrongly interpret tagged types in the same way as their universal
4759 counterpart and unknown types were just rejected. Changed so that the
4760 tagged and unknown types are handled in the same way as a SEQUENCE:
4761 that is the encoding is stored intact. There is also a new type
4762 "V_ASN1_OTHER" which is used when the class is not universal, in this
4763 case we have no idea what the actual type is so we just lump them all
4767 *) On VMS, stdout may very well lead to a file that is written to
4768 in a record-oriented fashion. That means that every write() will
4769 write a separate record, which will be read separately by the
4770 programs trying to read from it. This can be very confusing.
4772 The solution is to put a BIO filter in the way that will buffer
4773 text until a linefeed is reached, and then write everything a
4774 line at a time, so every record written will be an actual line,
4775 not chunks of lines and not (usually doesn't happen, but I've
4776 seen it once) several lines in one record. BIO_f_linebuffer() is
4779 Currently, it's a VMS-only method, because that's where it has
4780 been tested well enough.
4783 *) Remove 'optimized' squaring variant in BN_mod_mul_montgomery,
4784 it can return incorrect results.
4785 (Note: The buggy variant was not enabled in OpenSSL 0.9.5a,
4786 but it was in 0.9.6-beta[12].)
4789 *) Disable the check for content being present when verifying detached
4790 signatures in pk7_smime.c. Some versions of Netscape (wrongly)
4791 include zero length content when signing messages.
4794 *) New BIO_shutdown_wr macro, which invokes the BIO_C_SHUTDOWN_WR
4795 BIO_ctrl (for BIO pairs).
4798 *) Add DSO method for VMS.
4801 *) Bug fix: Montgomery multiplication could produce results with the
4805 *) Add RPM specification openssl.spec and modify it to build three
4806 packages. The default package contains applications, application
4807 documentation and run-time libraries. The devel package contains
4808 include files, static libraries and function documentation. The
4809 doc package contains the contents of the doc directory. The original
4810 openssl.spec was provided by Damien Miller <djm@mindrot.org>.
4813 *) Add a large number of documentation files for many SSL routines.
4814 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
4816 *) Add a configuration entry for Sony News 4.
4817 [NAKAJI Hiroyuki <nakaji@tutrp.tut.ac.jp>]
4819 *) Don't set the two most significant bits to one when generating a
4820 random number < q in the DSA library.
4823 *) New SSL API mode 'SSL_MODE_AUTO_RETRY'. This disables the default
4824 behaviour that SSL_read may result in SSL_ERROR_WANT_READ (even if
4825 the underlying transport is blocking) if a handshake took place.
4826 (The default behaviour is needed by applications such as s_client
4827 and s_server that use select() to determine when to use SSL_read;
4828 but for applications that know in advance when to expect data, it
4829 just makes things more complicated.)
4832 *) Add RAND_egd_bytes(), which gives control over the number of bytes read
4836 *) Add a few more EBCDIC conditionals that make `req' and `x509'
4837 work better on such systems.
4838 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
4840 *) Add two demo programs for PKCS12_parse() and PKCS12_create().
4841 Update PKCS12_parse() so it copies the friendlyName and the
4842 keyid to the certificates aux info.
4845 *) Fix bug in PKCS7_verify() which caused an infinite loop
4846 if there was more than one signature.
4847 [Sven Uszpelkat <su@celocom.de>]
4849 *) Major change in util/mkdef.pl to include extra information
4850 about each symbol, as well as presentig variables as well
4851 as functions. This change means that there's n more need
4852 to rebuild the .num files when some algorithms are excluded.
4855 *) Allow the verify time to be set by an application,
4856 rather than always using the current time.
4859 *) Phase 2 verify code reorganisation. The certificate
4860 verify code now looks up an issuer certificate by a
4861 number of criteria: subject name, authority key id
4862 and key usage. It also verifies self signed certificates
4863 by the same criteria. The main comparison function is
4864 X509_check_issued() which performs these checks.
4866 Lot of changes were necessary in order to support this
4867 without completely rewriting the lookup code.
4869 Authority and subject key identifier are now cached.
4871 The LHASH 'certs' is X509_STORE has now been replaced
4872 by a STACK_OF(X509_OBJECT). This is mainly because an
4873 LHASH can't store or retrieve multiple objects with
4874 the same hash value.
4876 As a result various functions (which were all internal
4877 use only) have changed to handle the new X509_STORE
4878 structure. This will break anything that messed round
4879 with X509_STORE internally.
4881 The functions X509_STORE_add_cert() now checks for an
4882 exact match, rather than just subject name.
4884 The X509_STORE API doesn't directly support the retrieval
4885 of multiple certificates matching a given criteria, however
4886 this can be worked round by performing a lookup first
4887 (which will fill the cache with candidate certificates)
4888 and then examining the cache for matches. This is probably
4889 the best we can do without throwing out X509_LOOKUP
4890 entirely (maybe later...).
4892 The X509_VERIFY_CTX structure has been enhanced considerably.
4894 All certificate lookup operations now go via a get_issuer()
4895 callback. Although this currently uses an X509_STORE it
4896 can be replaced by custom lookups. This is a simple way
4897 to bypass the X509_STORE hackery necessary to make this
4898 work and makes it possible to use more efficient techniques
4899 in future. A very simple version which uses a simple
4900 STACK for its trusted certificate store is also provided
4901 using X509_STORE_CTX_trusted_stack().
4903 The verify_cb() and verify() callbacks now have equivalents
4904 in the X509_STORE_CTX structure.
4906 X509_STORE_CTX also has a 'flags' field which can be used
4907 to customise the verify behaviour.
4910 *) Add new PKCS#7 signing option PKCS7_NOSMIMECAP which
4911 excludes S/MIME capabilities.
4914 *) When a certificate request is read in keep a copy of the
4915 original encoding of the signed data and use it when outputing
4916 again. Signatures then use the original encoding rather than
4917 a decoded, encoded version which may cause problems if the
4918 request is improperly encoded.
4921 *) For consistency with other BIO_puts implementations, call
4922 buffer_write(b, ...) directly in buffer_puts instead of calling
4925 In BIO_puts, increment b->num_write as in BIO_write.
4926 [Peter.Sylvester@EdelWeb.fr]
4928 *) Fix BN_mul_word for the case where the word is 0. (We have to use
4929 BN_zero, we may not return a BIGNUM with an array consisting of
4933 *) Avoid calling abort() from within the library when problems are
4934 detected, except if preprocessor symbols have been defined
4935 (such as REF_CHECK, BN_DEBUG etc.).
4938 *) New openssl application 'rsautl'. This utility can be
4939 used for low level RSA operations. DER public key
4940 BIO/fp routines also added.
4943 *) New Configure entry and patches for compiling on QNX 4.
4944 [Andreas Schneider <andreas@ds3.etech.fh-hamburg.de>]
4946 *) A demo state-machine implementation was sponsored by
4947 Nuron (http://www.nuron.com/) and is now available in
4948 demos/state_machine.
4951 *) New options added to the 'dgst' utility for signature
4952 generation and verification.
4955 *) Unrecognized PKCS#7 content types are now handled via a
4956 catch all ASN1_TYPE structure. This allows unsupported
4957 types to be stored as a "blob" and an application can
4958 encode and decode it manually.
4961 *) Fix various signed/unsigned issues to make a_strex.c
4963 [Oscar Jacobsson <oscar.jacobsson@celocom.com>]
4965 *) ASN1 fixes. i2d_ASN1_OBJECT was not returning the correct
4966 length if passed a buffer. ASN1_INTEGER_to_BN failed
4967 if passed a NULL BN and its argument was negative.
4968 [Steve Henson, pointed out by Sven Heiberg <sven@tartu.cyber.ee>]
4970 *) Modification to PKCS#7 encoding routines to output definite
4971 length encoding. Since currently the whole structures are in
4972 memory there's not real point in using indefinite length
4973 constructed encoding. However if OpenSSL is compiled with
4974 the flag PKCS7_INDEFINITE_ENCODING the old form is used.
4977 *) Added BIO_vprintf() and BIO_vsnprintf().
4980 *) Added more prefixes to parse for in the the strings written
4981 through a logging bio, to cover all the levels that are available
4982 through syslog. The prefixes are now:
4984 PANIC, EMERG, EMR => LOG_EMERG
4985 ALERT, ALR => LOG_ALERT
4986 CRIT, CRI => LOG_CRIT
4987 ERROR, ERR => LOG_ERR
4988 WARNING, WARN, WAR => LOG_WARNING
4989 NOTICE, NOTE, NOT => LOG_NOTICE
4990 INFO, INF => LOG_INFO
4991 DEBUG, DBG => LOG_DEBUG
4993 and as before, if none of those prefixes are present at the
4994 beginning of the string, LOG_ERR is chosen.
4996 On Win32, the LOG_* levels are mapped according to this:
4998 LOG_EMERG, LOG_ALERT, LOG_CRIT, LOG_ERR => EVENTLOG_ERROR_TYPE
4999 LOG_WARNING => EVENTLOG_WARNING_TYPE
5000 LOG_NOTICE, LOG_INFO, LOG_DEBUG => EVENTLOG_INFORMATION_TYPE
5004 *) Made it possible to reconfigure with just the configuration
5005 argument "reconf" or "reconfigure". The command line arguments
5006 are stored in Makefile.ssl in the variable CONFIGURE_ARGS,
5007 and are retrieved from there when reconfiguring.
5011 [Assar Westerlund <assar@sics.se>, Richard Levitte]
5013 *) Add the arguments -CAfile and -CApath to the pkcs12 utility.
5016 *) The obj_dat.pl script was messing up the sorting of object
5017 names. The reason was that it compared the quoted version
5018 of strings as a result "OCSP" > "OCSP Signing" because
5019 " > SPACE. Changed script to store unquoted versions of
5020 names and add quotes on output. It was also omitting some
5021 names from the lookup table if they were given a default
5022 value (that is if SN is missing it is given the same
5023 value as LN and vice versa), these are now added on the
5024 grounds that if an object has a name we should be able to
5025 look it up. Finally added warning output when duplicate
5026 short or long names are found.
5029 *) Changes needed for Tandem NSK.
5030 [Scott Uroff <scott@xypro.com>]
5032 *) Fix SSL 2.0 rollback checking: Due to an off-by-one error in
5033 RSA_padding_check_SSLv23(), special padding was never detected
5034 and thus the SSL 3.0/TLS 1.0 countermeasure against protocol
5035 version rollback attacks was not effective.
5037 In s23_clnt.c, don't use special rollback-attack detection padding
5038 (RSA_SSLV23_PADDING) if SSL 2.0 is the only protocol enabled in the
5039 client; similarly, in s23_srvr.c, don't do the rollback check if
5040 SSL 2.0 is the only protocol enabled in the server.
5043 *) Make it possible to get hexdumps of unprintable data with 'openssl
5044 asn1parse'. By implication, the functions ASN1_parse_dump() and
5045 BIO_dump_indent() are added.
5048 *) New functions ASN1_STRING_print_ex() and X509_NAME_print_ex()
5049 these print out strings and name structures based on various
5050 flags including RFC2253 support and proper handling of
5051 multibyte characters. Added options to the 'x509' utility
5052 to allow the various flags to be set.
5055 *) Various fixes to use ASN1_TIME instead of ASN1_UTCTIME.
5056 Also change the functions X509_cmp_current_time() and
5057 X509_gmtime_adj() work with an ASN1_TIME structure,
5058 this will enable certificates using GeneralizedTime in validity
5059 dates to be checked.
5062 *) Make the NEG_PUBKEY_BUG code (which tolerates invalid
5063 negative public key encodings) on by default,
5064 NO_NEG_PUBKEY_BUG can be set to disable it.
5067 *) New function c2i_ASN1_OBJECT() which acts on ASN1_OBJECT
5068 content octets. An i2c_ASN1_OBJECT is unnecessary because
5069 the encoding can be trivially obtained from the structure.
5072 *) crypto/err.c locking bugfix: Use write locks (CRYPTO_w_[un]lock),
5073 not read locks (CRYPTO_r_[un]lock).
5076 *) A first attempt at creating official support for shared
5077 libraries through configuration. I've kept it so the
5078 default is static libraries only, and the OpenSSL programs
5079 are always statically linked for now, but there are
5080 preparations for dynamic linking in place.
5081 This has been tested on Linux and Tru64.
5084 *) Randomness polling function for Win9x, as described in:
5085 Peter Gutmann, Software Generation of Practically Strong
5089 *) Fix so PRNG is seeded in req if using an already existing
5093 *) New options to smime application. -inform and -outform
5094 allow alternative formats for the S/MIME message including
5095 PEM and DER. The -content option allows the content to be
5096 specified separately. This should allow things like Netscape
5097 form signing output easier to verify.
5100 *) Fix the ASN1 encoding of tags using the 'long form'.
5103 *) New ASN1 functions, i2c_* and c2i_* for INTEGER and BIT
5104 STRING types. These convert content octets to and from the
5105 underlying type. The actual tag and length octets are
5106 already assumed to have been read in and checked. These
5107 are needed because all other string types have virtually
5108 identical handling apart from the tag. By having versions
5109 of the ASN1 functions that just operate on content octets
5110 IMPLICIT tagging can be handled properly. It also allows
5111 the ASN1_ENUMERATED code to be cut down because ASN1_ENUMERATED
5112 and ASN1_INTEGER are identical apart from the tag.
5115 *) Change the handling of OID objects as follows:
5117 - New object identifiers are inserted in objects.txt, following
5118 the syntax given in objects.README.
5119 - objects.pl is used to process obj_mac.num and create a new
5121 - obj_dat.pl is used to create a new obj_dat.h, using the data in
5124 This is currently kind of a hack, and the perl code in objects.pl
5125 isn't very elegant, but it works as I intended. The simplest way
5126 to check that it worked correctly is to look in obj_dat.h and
5127 check the array nid_objs and make sure the objects haven't moved
5128 around (this is important!). Additions are OK, as well as
5129 consistent name changes.
5132 *) Add BSD-style MD5-based passwords to 'openssl passwd' (option '-1').
5135 *) Addition of the command line parameter '-rand file' to 'openssl req'.
5136 The given file adds to whatever has already been seeded into the
5137 random pool through the RANDFILE configuration file option or
5138 environment variable, or the default random state file.
5141 *) mkstack.pl now sorts each macro group into lexical order.
5142 Previously the output order depended on the order the files
5143 appeared in the directory, resulting in needless rewriting
5147 *) Patches to make OpenSSL compile under Win32 again. Mostly
5148 work arounds for the VC++ problem that it treats func() as
5149 func(void). Also stripped out the parts of mkdef.pl that
5150 added extra typesafe functions: these no longer exist.
5153 *) Reorganisation of the stack code. The macros are now all
5154 collected in safestack.h . Each macro is defined in terms of
5155 a "stack macro" of the form SKM_<name>(type, a, b). The
5156 DEBUG_SAFESTACK is now handled in terms of function casts,
5157 this has the advantage of retaining type safety without the
5158 use of additional functions. If DEBUG_SAFESTACK is not defined
5159 then the non typesafe macros are used instead. Also modified the
5160 mkstack.pl script to handle the new form. Needs testing to see
5161 if which (if any) compilers it chokes and maybe make DEBUG_SAFESTACK
5162 the default if no major problems. Similar behaviour for ASN1_SET_OF
5163 and PKCS12_STACK_OF.
5166 *) When some versions of IIS use the 'NET' form of private key the
5167 key derivation algorithm is different. Normally MD5(password) is
5168 used as a 128 bit RC4 key. In the modified case
5169 MD5(MD5(password) + "SGCKEYSALT") is used insted. Added some
5170 new functions i2d_RSA_NET(), d2i_RSA_NET() etc which are the same
5171 as the old Netscape_RSA functions except they have an additional
5172 'sgckey' parameter which uses the modified algorithm. Also added
5173 an -sgckey command line option to the rsa utility. Thanks to
5174 Adrian Peck <bertie@ncipher.com> for posting details of the modified
5175 algorithm to openssl-dev.
5178 *) The evp_local.h macros were using 'c.##kname' which resulted in
5179 invalid expansion on some systems (SCO 5.0.5 for example).
5180 Corrected to 'c.kname'.
5181 [Phillip Porch <root@theporch.com>]
5183 *) New X509_get1_email() and X509_REQ_get1_email() functions that return
5184 a STACK of email addresses from a certificate or request, these look
5185 in the subject name and the subject alternative name extensions and
5186 omit any duplicate addresses.
5189 *) Re-implement BN_mod_exp2_mont using independent (and larger) windows.
5190 This makes DSA verification about 2 % faster.
5193 *) Increase maximum window size in BN_mod_exp_... to 6 bits instead of 5
5194 (meaning that now 2^5 values will be precomputed, which is only 4 KB
5195 plus overhead for 1024 bit moduli).
5196 This makes exponentiations about 0.5 % faster for 1024 bit
5197 exponents (as measured by "openssl speed rsa2048").
5200 *) Rename memory handling macros to avoid conflicts with other
5202 Malloc => OPENSSL_malloc
5203 Malloc_locked => OPENSSL_malloc_locked
5204 Realloc => OPENSSL_realloc
5205 Free => OPENSSL_free
5208 *) New function BN_mod_exp_mont_word for small bases (roughly 15%
5209 faster than BN_mod_exp_mont, i.e. 7% for a full DH exchange).
5212 *) CygWin32 support.
5213 [John Jarvie <jjarvie@newsguy.com>]
5215 *) The type-safe stack code has been rejigged. It is now only compiled
5216 in when OpenSSL is configured with the DEBUG_SAFESTACK option and
5217 by default all type-specific stack functions are "#define"d back to
5218 standard stack functions. This results in more streamlined output
5219 but retains the type-safety checking possibilities of the original
5223 *) The STACK code has been cleaned up, and certain type declarations
5224 that didn't make a lot of sense have been brought in line. This has
5225 also involved a cleanup of sorts in safestack.h to more correctly
5226 map type-safe stack functions onto their plain stack counterparts.
5227 This work has also resulted in a variety of "const"ifications of
5228 lots of the code, especially "_cmp" operations which should normally
5229 be prototyped with "const" parameters anyway.
5232 *) When generating bytes for the first time in md_rand.c, 'stir the pool'
5233 by seeding with STATE_SIZE dummy bytes (with zero entropy count).
5234 (The PRNG state consists of two parts, the large pool 'state' and 'md',
5235 where all of 'md' is used each time the PRNG is used, but 'state'
5236 is used only indexed by a cyclic counter. As entropy may not be
5237 well distributed from the beginning, 'md' is important as a
5238 chaining variable. However, the output function chains only half
5239 of 'md', i.e. 80 bits. ssleay_rand_add, on the other hand, chains
5240 all of 'md', and seeding with STATE_SIZE dummy bytes will result
5241 in all of 'state' being rewritten, with the new values depending
5242 on virtually all of 'md'. This overcomes the 80 bit limitation.)
5245 *) In ssl/s2_clnt.c and ssl/s3_clnt.c, call ERR_clear_error() when
5246 the handshake is continued after ssl_verify_cert_chain();
5247 otherwise, if SSL_VERIFY_NONE is set, remaining error codes
5248 can lead to 'unexplainable' connection aborts later.
5249 [Bodo Moeller; problem tracked down by Lutz Jaenicke]
5251 *) Major EVP API cipher revision.
5252 Add hooks for extra EVP features. This allows various cipher
5253 parameters to be set in the EVP interface. Support added for variable
5254 key length ciphers via the EVP_CIPHER_CTX_set_key_length() function and
5255 setting of RC2 and RC5 parameters.
5257 Modify EVP_OpenInit() and EVP_SealInit() to cope with variable key length
5260 Remove lots of duplicated code from the EVP library. For example *every*
5261 cipher init() function handles the 'iv' in the same way according to the
5262 cipher mode. They also all do nothing if the 'key' parameter is NULL and
5263 for CFB and OFB modes they zero ctx->num.
5265 New functionality allows removal of S/MIME code RC2 hack.
5267 Most of the routines have the same form and so can be declared in terms
5270 By shifting this to the top level EVP_CipherInit() it can be removed from
5271 all individual ciphers. If the cipher wants to handle IVs or keys
5272 differently it can set the EVP_CIPH_CUSTOM_IV or EVP_CIPH_ALWAYS_CALL_INIT
5275 Change lots of functions like EVP_EncryptUpdate() to now return a
5276 value: although software versions of the algorithms cannot fail
5277 any installed hardware versions can.
5280 *) Implement SSL_OP_TLS_ROLLBACK_BUG: In ssl3_get_client_key_exchange, if
5281 this option is set, tolerate broken clients that send the negotiated
5282 protocol version number instead of the requested protocol version
5286 *) Call dh_tmp_cb (set by ..._TMP_DH_CB) with correct 'is_export' flag;
5287 i.e. non-zero for export ciphersuites, zero otherwise.
5288 Previous versions had this flag inverted, inconsistent with
5289 rsa_tmp_cb (..._TMP_RSA_CB).
5290 [Bodo Moeller; problem reported by Amit Chopra]
5292 *) Add missing DSA library text string. Work around for some IIS
5293 key files with invalid SEQUENCE encoding.
5296 *) Add a document (doc/standards.txt) that list all kinds of standards
5297 and so on that are implemented in OpenSSL.
5300 *) Enhance c_rehash script. Old version would mishandle certificates
5301 with the same subject name hash and wouldn't handle CRLs at all.
5302 Added -fingerprint option to crl utility, to support new c_rehash
5306 *) Eliminate non-ANSI declarations in crypto.h and stack.h.
5309 *) Fix for SSL server purpose checking. Server checking was
5310 rejecting certificates which had extended key usage present
5311 but no ssl client purpose.
5312 [Steve Henson, reported by Rene Grosser <grosser@hisolutions.com>]
5314 *) Make PKCS#12 code work with no password. The PKCS#12 spec
5315 is a little unclear about how a blank password is handled.
5316 Since the password in encoded as a BMPString with terminating
5317 double NULL a zero length password would end up as just the
5318 double NULL. However no password at all is different and is
5319 handled differently in the PKCS#12 key generation code. NS
5320 treats a blank password as zero length. MSIE treats it as no
5321 password on export: but it will try both on import. We now do
5322 the same: PKCS12_parse() tries zero length and no password if
5323 the password is set to "" or NULL (NULL is now a valid password:
5324 it wasn't before) as does the pkcs12 application.
5327 *) Bugfixes in apps/x509.c: Avoid a memory leak; and don't use
5328 perror when PEM_read_bio_X509_REQ fails, the error message must
5329 be obtained from the error queue.
5332 *) Avoid 'thread_hash' memory leak in crypto/err/err.c by freeing
5333 it in ERR_remove_state if appropriate, and change ERR_get_state
5334 accordingly to avoid race conditions (this is necessary because
5335 thread_hash is no longer constant once set).
5338 *) Bugfix for linux-elf makefile.one.
5341 *) RSA_get_default_method() will now cause a default
5342 RSA_METHOD to be chosen if one doesn't exist already.
5343 Previously this was only set during a call to RSA_new()
5344 or RSA_new_method(NULL) meaning it was possible for
5345 RSA_get_default_method() to return NULL.
5348 *) Added native name translation to the existing DSO code
5349 that will convert (if the flag to do so is set) filenames
5350 that are sufficiently small and have no path information
5351 into a canonical native form. Eg. "blah" converted to
5352 "libblah.so" or "blah.dll" etc.
5355 *) New function ERR_error_string_n(e, buf, len) which is like
5356 ERR_error_string(e, buf), but writes at most 'len' bytes
5357 including the 0 terminator. For ERR_error_string_n, 'buf'
5359 [Damien Miller <djm@mindrot.org>, Bodo Moeller]
5361 *) CONF library reworked to become more general. A new CONF
5362 configuration file reader "class" is implemented as well as a
5363 new functions (NCONF_*, for "New CONF") to handle it. The now
5364 old CONF_* functions are still there, but are reimplemented to
5365 work in terms of the new functions. Also, a set of functions
5366 to handle the internal storage of the configuration data is
5367 provided to make it easier to write new configuration file
5368 reader "classes" (I can definitely see something reading a
5369 configuration file in XML format, for example), called _CONF_*,
5370 or "the configuration storage API"...
5372 The new configuration file reading functions are:
5374 NCONF_new, NCONF_free, NCONF_load, NCONF_load_fp, NCONF_load_bio,
5375 NCONF_get_section, NCONF_get_string, NCONF_get_numbre
5377 NCONF_default, NCONF_WIN32
5379 NCONF_dump_fp, NCONF_dump_bio
5381 NCONF_default and NCONF_WIN32 are method (or "class") choosers,
5382 NCONF_new creates a new CONF object. This works in the same way
5383 as other interfaces in OpenSSL, like the BIO interface.
5384 NCONF_dump_* dump the internal storage of the configuration file,
5385 which is useful for debugging. All other functions take the same
5386 arguments as the old CONF_* functions wth the exception of the
5387 first that must be a `CONF *' instead of a `LHASH *'.
5389 To make it easer to use the new classes with the old CONF_* functions,
5390 the function CONF_set_default_method is provided.
5393 *) Add '-tls1' option to 'openssl ciphers', which was already
5394 mentioned in the documentation but had not been implemented.
5395 (This option is not yet really useful because even the additional
5396 experimental TLS 1.0 ciphers are currently treated as SSL 3.0 ciphers.)
5399 *) Initial DSO code added into libcrypto for letting OpenSSL (and
5400 OpenSSL-based applications) load shared libraries and bind to
5401 them in a portable way.
5402 [Geoff Thorpe, with contributions from Richard Levitte]
5404 Changes between 0.9.5 and 0.9.5a [1 Apr 2000]
5406 *) Make sure _lrotl and _lrotr are only used with MSVC.
5408 *) Use lock CRYPTO_LOCK_RAND correctly in ssleay_rand_status
5409 (the default implementation of RAND_status).
5411 *) Rename openssl x509 option '-crlext', which was added in 0.9.5,
5412 to '-clrext' (= clear extensions), as intended and documented.
5413 [Bodo Moeller; inconsistency pointed out by Michael Attili
5416 *) Fix for HMAC. It wasn't zeroing the rest of the block if the key length
5417 was larger than the MD block size.
5418 [Steve Henson, pointed out by Yost William <YostW@tce.com>]
5420 *) Modernise PKCS12_parse() so it uses STACK_OF(X509) for its ca argument
5421 fix a leak when the ca argument was passed as NULL. Stop X509_PUBKEY_set()
5422 using the passed key: if the passed key was a private key the result
5423 of X509_print(), for example, would be to print out all the private key
5427 *) des_quad_cksum() byte order bug fix.
5428 [Ulf Möller, using the problem description in krb4-0.9.7, where
5429 the solution is attributed to Derrick J Brashear <shadow@DEMENTIA.ORG>]
5431 *) Fix so V_ASN1_APP_CHOOSE works again: however its use is strongly
5433 [Steve Henson, pointed out by Brian Korver <briank@cs.stanford.edu>]
5435 *) For easily testing in shell scripts whether some command
5436 'openssl XXX' exists, the new pseudo-command 'openssl no-XXX'
5437 returns with exit code 0 iff no command of the given name is available.
5438 'no-XXX' is printed in this case, 'XXX' otherwise. In both cases,
5439 the output goes to stdout and nothing is printed to stderr.
5440 Additional arguments are always ignored.
5442 Since for each cipher there is a command of the same name,
5443 the 'no-cipher' compilation switches can be tested this way.
5445 ('openssl no-XXX' is not able to detect pseudo-commands such
5446 as 'quit', 'list-XXX-commands', or 'no-XXX' itself.)
5449 *) Update test suite so that 'make test' succeeds in 'no-rsa' configuration.
5452 *) For SSL_[CTX_]set_tmp_dh, don't create a DH key if SSL_OP_SINGLE_DH_USE
5453 is set; it will be thrown away anyway because each handshake creates
5455 ssl_cert_dup, which is used by SSL_new, now copies DH keys in addition
5456 to parameters -- in previous versions (since OpenSSL 0.9.3) the
5457 'default key' from SSL_CTX_set_tmp_dh would always be lost, meanining
5458 you effectivly got SSL_OP_SINGLE_DH_USE when using this macro.
5461 *) New s_client option -ign_eof: EOF at stdin is ignored, and
5462 'Q' and 'R' lose their special meanings (quit/renegotiate).
5463 This is part of what -quiet does; unlike -quiet, -ign_eof
5464 does not suppress any output.
5467 *) Add compatibility options to the purpose and trust code. The
5468 purpose X509_PURPOSE_ANY is "any purpose" which automatically
5469 accepts a certificate or CA, this was the previous behaviour,
5470 with all the associated security issues.
5472 X509_TRUST_COMPAT is the old trust behaviour: only and
5473 automatically trust self signed roots in certificate store. A
5474 new trust setting X509_TRUST_DEFAULT is used to specify that
5475 a purpose has no associated trust setting and it should instead
5476 use the value in the default purpose.
5479 *) Fix the PKCS#8 DSA private key code so it decodes keys again
5480 and fix a memory leak.
5483 *) In util/mkerr.pl (which implements 'make errors'), preserve
5484 reason strings from the previous version of the .c file, as
5485 the default to have only downcase letters (and digits) in
5486 automatically generated reasons codes is not always appropriate.
5489 *) In ERR_load_ERR_strings(), build an ERR_LIB_SYS error reason table
5490 using strerror. Previously, ERR_reason_error_string() returned
5491 library names as reason strings for SYSerr; but SYSerr is a special
5492 case where small numbers are errno values, not library numbers.
5495 *) Add '-dsaparam' option to 'openssl dhparam' application. This
5496 converts DSA parameters into DH parameters. (When creating parameters,
5497 DSA_generate_parameters is used.)
5500 *) Include 'length' (recommended exponent length) in C code generated
5501 by 'openssl dhparam -C'.
5504 *) The second argument to set_label in perlasm was already being used
5505 so couldn't be used as a "file scope" flag. Moved to third argument
5509 *) In PEM_ASN1_write_bio and some other functions, use RAND_pseudo_bytes
5510 instead of RAND_bytes for encryption IVs and salts.
5513 *) Include RAND_status() into RAND_METHOD instead of implementing
5514 it only for md_rand.c Otherwise replacing the PRNG by calling
5515 RAND_set_rand_method would be impossible.
5518 *) Don't let DSA_generate_key() enter an infinite loop if the random
5519 number generation fails.
5522 *) New 'rand' application for creating pseudo-random output.
5525 *) Added configuration support for Linux/IA64
5526 [Rolf Haberrecker <rolf@suse.de>]
5528 *) Assembler module support for Mingw32.
5531 *) Shared library support for HPUX (in shlib/).
5532 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE> and Anonymous]
5534 *) Shared library support for Solaris gcc.
5535 [Lutz Behnke <behnke@trustcenter.de>]
5537 Changes between 0.9.4 and 0.9.5 [28 Feb 2000]
5539 *) PKCS7_encrypt() was adding text MIME headers twice because they
5540 were added manually and by SMIME_crlf_copy().
5543 *) In bntest.c don't call BN_rand with zero bits argument.
5544 [Steve Henson, pointed out by Andrew W. Gray <agray@iconsinc.com>]
5546 *) BN_mul bugfix: In bn_mul_part_recursion() only the a>a[n] && b>b[n]
5547 case was implemented. This caused BN_div_recp() to fail occasionally.
5550 *) Add an optional second argument to the set_label() in the perl
5551 assembly language builder. If this argument exists and is set
5552 to 1 it signals that the assembler should use a symbol whose
5553 scope is the entire file, not just the current function. This
5554 is needed with MASM which uses the format label:: for this scope.
5555 [Steve Henson, pointed out by Peter Runestig <peter@runestig.com>]
5557 *) Change the ASN1 types so they are typedefs by default. Before
5558 almost all types were #define'd to ASN1_STRING which was causing
5559 STACK_OF() problems: you couldn't declare STACK_OF(ASN1_UTF8STRING)
5563 *) Change names of new functions to the new get1/get0 naming
5564 convention: After 'get1', the caller owns a reference count
5565 and has to call ..._free; 'get0' returns a pointer to some
5566 data structure without incrementing reference counters.
5567 (Some of the existing 'get' functions increment a reference
5568 counter, some don't.)
5569 Similarly, 'set1' and 'add1' functions increase reference
5570 counters or duplicate objects.
5573 *) Allow for the possibility of temp RSA key generation failure:
5574 the code used to assume it always worked and crashed on failure.
5577 *) Fix potential buffer overrun problem in BIO_printf().
5578 [Ulf Möller, using public domain code by Patrick Powell; problem
5579 pointed out by David Sacerdote <das33@cornell.edu>]
5581 *) Support EGD <http://www.lothar.com/tech/crypto/>. New functions
5582 RAND_egd() and RAND_status(). In the command line application,
5583 the EGD socket can be specified like a seed file using RANDFILE
5587 *) Allow the string CERTIFICATE to be tolerated in PKCS#7 structures.
5588 Some CAs (e.g. Verisign) distribute certificates in this form.
5591 *) Remove the SSL_ALLOW_ADH compile option and set the default cipher
5592 list to exclude them. This means that no special compilation option
5593 is needed to use anonymous DH: it just needs to be included in the
5597 *) Change the EVP_MD_CTX_type macro so its meaning consistent with
5598 EVP_MD_type. The old functionality is available in a new macro called
5599 EVP_MD_md(). Change code that uses it and update docs.
5602 *) ..._ctrl functions now have corresponding ..._callback_ctrl functions
5603 where the 'void *' argument is replaced by a function pointer argument.
5604 Previously 'void *' was abused to point to functions, which works on
5605 many platforms, but is not correct. As these functions are usually
5606 called by macros defined in OpenSSL header files, most source code
5607 should work without changes.
5610 *) <openssl/opensslconf.h> (which is created by Configure) now contains
5611 sections with information on -D... compiler switches used for
5612 compiling the library so that applications can see them. To enable
5613 one of these sections, a pre-processor symbol OPENSSL_..._DEFINES
5614 must be defined. E.g.,
5615 #define OPENSSL_ALGORITHM_DEFINES
5616 #include <openssl/opensslconf.h>
5617 defines all pertinent NO_<algo> symbols, such as NO_IDEA, NO_RSA, etc.
5618 [Richard Levitte, Ulf and Bodo Möller]
5620 *) Bugfix: Tolerate fragmentation and interleaving in the SSL 3/TLS
5624 *) Change the 'other' type in certificate aux info to a STACK_OF
5625 X509_ALGOR. Although not an AlgorithmIdentifier as such it has
5626 the required ASN1 format: arbitrary types determined by an OID.
5629 *) Add some PEM_write_X509_REQ_NEW() functions and a command line
5630 argument to 'req'. This is not because the function is newer or
5631 better than others it just uses the work 'NEW' in the certificate
5632 request header lines. Some software needs this.
5635 *) Reorganise password command line arguments: now passwords can be
5636 obtained from various sources. Delete the PEM_cb function and make
5637 it the default behaviour: i.e. if the callback is NULL and the
5638 usrdata argument is not NULL interpret it as a null terminated pass
5639 phrase. If usrdata and the callback are NULL then the pass phrase
5640 is prompted for as usual.
5643 *) Add support for the Compaq Atalla crypto accelerator. If it is installed,
5644 the support is automatically enabled. The resulting binaries will
5645 autodetect the card and use it if present.
5646 [Ben Laurie and Compaq Inc.]
5648 *) Work around for Netscape hang bug. This sends certificate request
5649 and server done in one record. Since this is perfectly legal in the
5650 SSL/TLS protocol it isn't a "bug" option and is on by default. See
5651 the bugs/SSLv3 entry for more info.
5654 *) HP-UX tune-up: new unified configs, HP C compiler bug workaround.
5657 *) Add -rand argument to smime and pkcs12 applications and read/write
5661 *) New 'passwd' tool for crypt(3) and apr1 password hashes.
5664 *) Add command line password options to the remaining applications.
5667 *) Bug fix for BN_div_recp() for numerators with an even number of
5671 *) More tests in bntest.c, and changed test_bn output.
5674 *) ./config recognizes MacOS X now.
5677 *) Bug fix for BN_div() when the first words of num and divsor are
5678 equal (it gave wrong results if (rem=(n1-q*d0)&BN_MASK2) < d0).
5681 *) Add support for various broken PKCS#8 formats, and command line
5682 options to produce them.
5685 *) New functions BN_CTX_start(), BN_CTX_get() and BT_CTX_end() to
5686 get temporary BIGNUMs from a BN_CTX.
5689 *) Correct return values in BN_mod_exp_mont() and BN_mod_exp2_mont()
5693 *) Change the SSLeay_add_all_*() functions to OpenSSL_add_all_*() and
5694 include a #define from the old name to the new. The original intent
5695 was that statically linked binaries could for example just call
5696 SSLeay_add_all_ciphers() to just add ciphers to the table and not
5697 link with digests. This never worked becayse SSLeay_add_all_digests()
5698 and SSLeay_add_all_ciphers() were in the same source file so calling
5699 one would link with the other. They are now in separate source files.
5702 *) Add a new -notext option to 'ca' and a -pubkey option to 'spkac'.
5705 *) Use a less unusual form of the Miller-Rabin primality test (it used
5706 a binary algorithm for exponentiation integrated into the Miller-Rabin
5707 loop, our standard modexp algorithms are faster).
5710 *) Support for the EBCDIC character set completed.
5711 [Martin Kraemer <Martin.Kraemer@Mch.SNI.De>]
5713 *) Source code cleanups: use const where appropriate, eliminate casts,
5714 use void * instead of char * in lhash.
5717 *) Bugfix: ssl3_send_server_key_exchange was not restartable
5718 (the state was not changed to SSL3_ST_SW_KEY_EXCH_B, and because of
5719 this the server could overwrite ephemeral keys that the client
5723 *) Turn DSA_is_prime into a macro that calls BN_is_prime,
5724 using 50 iterations of the Rabin-Miller test.
5726 DSA_generate_parameters now uses BN_is_prime_fasttest (with 50
5727 iterations of the Rabin-Miller test as required by the appendix
5728 to FIPS PUB 186[-1]) instead of DSA_is_prime.
5729 As BN_is_prime_fasttest includes trial division, DSA parameter
5730 generation becomes much faster.
5732 This implies a change for the callback functions in DSA_is_prime
5733 and DSA_generate_parameters: The callback function is called once
5734 for each positive witness in the Rabin-Miller test, not just
5735 occasionally in the inner loop; and the parameters to the
5736 callback function now provide an iteration count for the outer
5737 loop rather than for the current invocation of the inner loop.
5738 DSA_generate_parameters additionally can call the callback
5739 function with an 'iteration count' of -1, meaning that a
5740 candidate has passed the trial division test (when q is generated
5741 from an application-provided seed, trial division is skipped).
5744 *) New function BN_is_prime_fasttest that optionally does trial
5745 division before starting the Rabin-Miller test and has
5746 an additional BN_CTX * argument (whereas BN_is_prime always
5747 has to allocate at least one BN_CTX).
5748 'callback(1, -1, cb_arg)' is called when a number has passed the
5749 trial division stage.
5752 *) Fix for bug in CRL encoding. The validity dates weren't being handled
5756 *) New -pkcs12 option to CA.pl script to write out a PKCS#12 file.
5759 *) New function BN_pseudo_rand().
5762 *) Clean up BN_mod_mul_montgomery(): replace the broken (and unreadable)
5763 bignum version of BN_from_montgomery() with the working code from
5764 SSLeay 0.9.0 (the word based version is faster anyway), and clean up
5768 *) Avoid a race condition in s2_clnt.c (function get_server_hello) that
5769 made it impossible to use the same SSL_SESSION data structure in
5770 SSL2 clients in multiple threads.
5773 *) The return value of RAND_load_file() no longer counts bytes obtained
5774 by stat(). RAND_load_file(..., -1) is new and uses the complete file
5775 to seed the PRNG (previously an explicit byte count was required).
5776 [Ulf Möller, Bodo Möller]
5778 *) Clean up CRYPTO_EX_DATA functions, some of these didn't have prototypes
5779 used (char *) instead of (void *) and had casts all over the place.
5782 *) Make BN_generate_prime() return NULL on error if ret!=NULL.
5785 *) Retain source code compatibility for BN_prime_checks macro:
5786 BN_is_prime(..., BN_prime_checks, ...) now uses
5787 BN_prime_checks_for_size to determine the appropriate number of
5788 Rabin-Miller iterations.
5791 *) Diffie-Hellman uses "safe" primes: DH_check() return code renamed to
5792 DH_CHECK_P_NOT_SAFE_PRIME.
5793 (Check if this is true? OpenPGP calls them "strong".)
5796 *) Merge the functionality of "dh" and "gendh" programs into a new program
5797 "dhparam". The old programs are retained for now but will handle DH keys
5798 (instead of parameters) in future.
5801 *) Make the ciphers, s_server and s_client programs check the return values
5802 when a new cipher list is set.
5805 *) Enhance the SSL/TLS cipher mechanism to correctly handle the TLS 56bit
5806 ciphers. Before when the 56bit ciphers were enabled the sorting was
5809 The syntax for the cipher sorting has been extended to support sorting by
5810 cipher-strength (using the strength_bits hard coded in the tables).
5811 The new command is "@STRENGTH" (see also doc/apps/ciphers.pod).
5813 Fix a bug in the cipher-command parser: when supplying a cipher command
5814 string with an "undefined" symbol (neither command nor alphanumeric
5815 [A-Za-z0-9], ssl_set_cipher_list used to hang in an endless loop. Now
5816 an error is flagged.
5818 Due to the strength-sorting extension, the code of the
5819 ssl_create_cipher_list() function was completely rearranged. I hope that
5820 the readability was also increased :-)
5821 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
5823 *) Minor change to 'x509' utility. The -CAcreateserial option now uses 1
5824 for the first serial number and places 2 in the serial number file. This
5825 avoids problems when the root CA is created with serial number zero and
5826 the first user certificate has the same issuer name and serial number
5830 *) Fixes to X509_ATTRIBUTE utilities, change the 'req' program so it uses
5831 the new code. Add documentation for this stuff.
5834 *) Changes to X509_ATTRIBUTE utilities. These have been renamed from
5835 X509_*() to X509at_*() on the grounds that they don't handle X509
5836 structures and behave in an analagous way to the X509v3 functions:
5837 they shouldn't be called directly but wrapper functions should be used
5840 So we also now have some wrapper functions that call the X509at functions
5841 when passed certificate requests. (TO DO: similar things can be done with
5842 PKCS#7 signed and unsigned attributes, PKCS#12 attributes and a few other
5843 things. Some of these need some d2i or i2d and print functionality
5844 because they handle more complex structures.)
5847 *) Add missing #ifndefs that caused missing symbols when building libssl
5848 as a shared library without RSA. Use #ifndef NO_SSL2 instead of
5849 NO_RSA in ssl/s2*.c.
5850 [Kris Kennaway <kris@hub.freebsd.org>, modified by Ulf Möller]
5852 *) Precautions against using the PRNG uninitialized: RAND_bytes() now
5853 has a return value which indicates the quality of the random data
5854 (1 = ok, 0 = not seeded). Also an error is recorded on the thread's
5855 error queue. New function RAND_pseudo_bytes() generates output that is
5856 guaranteed to be unique but not unpredictable. RAND_add is like
5857 RAND_seed, but takes an extra argument for an entropy estimate
5858 (RAND_seed always assumes full entropy).
5861 *) Do more iterations of Rabin-Miller probable prime test (specifically,
5862 3 for 1024-bit primes, 6 for 512-bit primes, 12 for 256-bit primes
5863 instead of only 2 for all lengths; see BN_prime_checks_for_size definition
5864 in crypto/bn/bn_prime.c for the complete table). This guarantees a
5865 false-positive rate of at most 2^-80 for random input.
5868 *) Rewrite ssl3_read_n (ssl/s3_pkt.c) avoiding a couple of bugs.
5871 *) New function X509_CTX_rget_chain() (renamed to X509_CTX_get1_chain
5872 in the 0.9.5 release), this returns the chain
5873 from an X509_CTX structure with a dup of the stack and all
5874 the X509 reference counts upped: so the stack will exist
5875 after X509_CTX_cleanup() has been called. Modify pkcs12.c
5878 Also make SSL_SESSION_print() print out the verify return
5882 *) Add manpage for the pkcs12 command. Also change the default
5883 behaviour so MAC iteration counts are used unless the new
5884 -nomaciter option is used. This improves file security and
5885 only older versions of MSIE (4.0 for example) need it.
5888 *) Honor the no-xxx Configure options when creating .DEF files.
5891 *) Add PKCS#10 attributes to field table: challengePassword,
5892 unstructuredName and unstructuredAddress. These are taken from
5893 draft PKCS#9 v2.0 but are compatible with v1.2 provided no
5894 international characters are used.
5896 More changes to X509_ATTRIBUTE code: allow the setting of types
5897 based on strings. Remove the 'loc' parameter when adding
5898 attributes because these will be a SET OF encoding which is sorted
5902 *) Initial changes to the 'req' utility to allow request generation
5903 automation. This will allow an application to just generate a template
5904 file containing all the field values and have req construct the
5907 Initial support for X509_ATTRIBUTE handling. Stacks of these are
5908 used all over the place including certificate requests and PKCS#7
5909 structures. They are currently handled manually where necessary with
5910 some primitive wrappers for PKCS#7. The new functions behave in a
5911 manner analogous to the X509 extension functions: they allow
5912 attributes to be looked up by NID and added.
5914 Later something similar to the X509V3 code would be desirable to
5915 automatically handle the encoding, decoding and printing of the
5916 more complex types. The string types like challengePassword can
5917 be handled by the string table functions.
5919 Also modified the multi byte string table handling. Now there is
5920 a 'global mask' which masks out certain types. The table itself
5921 can use the flag STABLE_NO_MASK to ignore the mask setting: this
5922 is useful when for example there is only one permissible type
5923 (as in countryName) and using the mask might result in no valid
5927 *) Clean up 'Finished' handling, and add functions SSL_get_finished and
5928 SSL_get_peer_finished to allow applications to obtain the latest
5929 Finished messages sent to the peer or expected from the peer,
5930 respectively. (SSL_get_peer_finished is usually the Finished message
5931 actually received from the peer, otherwise the protocol will be aborted.)
5933 As the Finished message are message digests of the complete handshake
5934 (with a total of 192 bits for TLS 1.0 and more for SSL 3.0), they can
5935 be used for external authentication procedures when the authentication
5936 provided by SSL/TLS is not desired or is not enough.
5939 *) Enhanced support for Alpha Linux is added. Now ./config checks if
5940 the host supports BWX extension and if Compaq C is present on the
5941 $PATH. Just exploiting of the BWX extension results in 20-30%
5942 performance kick for some algorithms, e.g. DES and RC4 to mention
5943 a couple. Compaq C in turn generates ~20% faster code for MD5 and
5947 *) Add support for MS "fast SGC". This is arguably a violation of the
5948 SSL3/TLS protocol. Netscape SGC does two handshakes: the first with
5949 weak crypto and after checking the certificate is SGC a second one
5950 with strong crypto. MS SGC stops the first handshake after receiving
5951 the server certificate message and sends a second client hello. Since
5952 a server will typically do all the time consuming operations before
5953 expecting any further messages from the client (server key exchange
5954 is the most expensive) there is little difference between the two.
5956 To get OpenSSL to support MS SGC we have to permit a second client
5957 hello message after we have sent server done. In addition we have to
5958 reset the MAC if we do get this second client hello.
5961 *) Add a function 'd2i_AutoPrivateKey()' this will automatically decide
5962 if a DER encoded private key is RSA or DSA traditional format. Changed
5963 d2i_PrivateKey_bio() to use it. This is only needed for the "traditional"
5964 format DER encoded private key. Newer code should use PKCS#8 format which
5965 has the key type encoded in the ASN1 structure. Added DER private key
5966 support to pkcs8 application.
5969 *) SSL 3/TLS 1 servers now don't request certificates when an anonymous
5970 ciphersuites has been selected (as required by the SSL 3/TLS 1
5971 specifications). Exception: When SSL_VERIFY_FAIL_IF_NO_PEER_CERT
5972 is set, we interpret this as a request to violate the specification
5973 (the worst that can happen is a handshake failure, and 'correct'
5974 behaviour would result in a handshake failure anyway).
5977 *) In SSL_CTX_add_session, take into account that there might be multiple
5978 SSL_SESSION structures with the same session ID (e.g. when two threads
5979 concurrently obtain them from an external cache).
5980 The internal cache can handle only one SSL_SESSION with a given ID,
5981 so if there's a conflict, we now throw out the old one to achieve
5985 *) Add OIDs for idea and blowfish in CBC mode. This will allow both
5986 to be used in PKCS#5 v2.0 and S/MIME. Also add checking to
5987 some routines that use cipher OIDs: some ciphers do not have OIDs
5988 defined and so they cannot be used for S/MIME and PKCS#5 v2.0 for
5992 *) Simplify the trust setting structure and code. Now we just have
5993 two sequences of OIDs for trusted and rejected settings. These will
5994 typically have values the same as the extended key usage extension
5995 and any application specific purposes.
5997 The trust checking code now has a default behaviour: it will just
5998 check for an object with the same NID as the passed id. Functions can
5999 be provided to override either the default behaviour or the behaviour
6000 for a given id. SSL client, server and email already have functions
6001 in place for compatibility: they check the NID and also return "trusted"
6002 if the certificate is self signed.
6005 *) Add d2i,i2d bio/fp functions for PrivateKey: these convert the
6006 traditional format into an EVP_PKEY structure.
6009 *) Add a password callback function PEM_cb() which either prompts for
6010 a password if usr_data is NULL or otherwise assumes it is a null
6011 terminated password. Allow passwords to be passed on command line
6012 environment or config files in a few more utilities.
6015 *) Add a bunch of DER and PEM functions to handle PKCS#8 format private
6016 keys. Add some short names for PKCS#8 PBE algorithms and allow them
6017 to be specified on the command line for the pkcs8 and pkcs12 utilities.
6018 Update documentation.
6021 *) Support for ASN1 "NULL" type. This could be handled before by using
6022 ASN1_TYPE but there wasn't any function that would try to read a NULL
6023 and produce an error if it couldn't. For compatibility we also have
6024 ASN1_NULL_new() and ASN1_NULL_free() functions but these are faked and
6025 don't allocate anything because they don't need to.
6028 *) Initial support for MacOS is now provided. Examine INSTALL.MacOS
6030 [Andy Polyakov, Roy Woods <roy@centicsystems.ca>]
6032 *) Rebuild of the memory allocation routines used by OpenSSL code and
6033 possibly others as well. The purpose is to make an interface that
6034 provide hooks so anyone can build a separate set of allocation and
6035 deallocation routines to be used by OpenSSL, for example memory
6036 pool implementations, or something else, which was previously hard
6037 since Malloc(), Realloc() and Free() were defined as macros having
6038 the values malloc, realloc and free, respectively (except for Win32
6039 compilations). The same is provided for memory debugging code.
6040 OpenSSL already comes with functionality to find memory leaks, but
6041 this gives people a chance to debug other memory problems.
6043 With these changes, a new set of functions and macros have appeared:
6045 CRYPTO_set_mem_debug_functions() [F]
6046 CRYPTO_get_mem_debug_functions() [F]
6047 CRYPTO_dbg_set_options() [F]
6048 CRYPTO_dbg_get_options() [F]
6049 CRYPTO_malloc_debug_init() [M]
6051 The memory debug functions are NULL by default, unless the library
6052 is compiled with CRYPTO_MDEBUG or friends is defined. If someone
6053 wants to debug memory anyway, CRYPTO_malloc_debug_init() (which
6054 gives the standard debugging functions that come with OpenSSL) or
6055 CRYPTO_set_mem_debug_functions() (tells OpenSSL to use functions
6056 provided by the library user) must be used. When the standard
6057 debugging functions are used, CRYPTO_dbg_set_options can be used to
6058 request additional information:
6059 CRYPTO_dbg_set_options(V_CYRPTO_MDEBUG_xxx) corresponds to setting
6060 the CRYPTO_MDEBUG_xxx macro when compiling the library.
6062 Also, things like CRYPTO_set_mem_functions will always give the
6063 expected result (the new set of functions is used for allocation
6064 and deallocation) at all times, regardless of platform and compiler
6067 To finish it up, some functions that were never use in any other
6068 way than through macros have a new API and new semantic:
6071 CRYPTO_dbg_realloc()
6074 All macros of value have retained their old syntax.
6075 [Richard Levitte and Bodo Moeller]
6077 *) Some S/MIME fixes. The OID for SMIMECapabilities was wrong, the
6078 ordering of SMIMECapabilities wasn't in "strength order" and there
6079 was a missing NULL in the AlgorithmIdentifier for the SHA1 signature
6083 *) Some ASN1 types with illegal zero length encoding (INTEGER,
6084 ENUMERATED and OBJECT IDENTIFIER) choked the ASN1 routines.
6085 [Frans Heymans <fheymans@isaserver.be>, modified by Steve Henson]
6087 *) Merge in my S/MIME library for OpenSSL. This provides a simple
6088 S/MIME API on top of the PKCS#7 code, a MIME parser (with enough
6089 functionality to handle multipart/signed properly) and a utility
6090 called 'smime' to call all this stuff. This is based on code I
6091 originally wrote for Celo who have kindly allowed it to be
6092 included in OpenSSL.
6095 *) Add variants des_set_key_checked and des_set_key_unchecked of
6096 des_set_key (aka des_key_sched). Global variable des_check_key
6097 decides which of these is called by des_set_key; this way
6098 des_check_key behaves as it always did, but applications and
6099 the library itself, which was buggy for des_check_key == 1,
6100 have a cleaner way to pick the version they need.
6103 *) New function PKCS12_newpass() which changes the password of a
6107 *) Modify X509_TRUST and X509_PURPOSE so it also uses a static and
6108 dynamic mix. In both cases the ids can be used as an index into the
6109 table. Also modified the X509_TRUST_add() and X509_PURPOSE_add()
6110 functions so they accept a list of the field values and the
6111 application doesn't need to directly manipulate the X509_TRUST
6115 *) Modify the ASN1_STRING_TABLE stuff so it also uses bsearch and doesn't
6119 *) Modify the way the V3 extension code looks up extensions. This now
6120 works in a similar way to the object code: we have some "standard"
6121 extensions in a static table which is searched with OBJ_bsearch()
6122 and the application can add dynamic ones if needed. The file
6123 crypto/x509v3/ext_dat.h now has the info: this file needs to be
6124 updated whenever a new extension is added to the core code and kept
6125 in ext_nid order. There is a simple program 'tabtest.c' which checks
6126 this. New extensions are not added too often so this file can readily
6127 be maintained manually.
6129 There are two big advantages in doing things this way. The extensions
6130 can be looked up immediately and no longer need to be "added" using
6131 X509V3_add_standard_extensions(): this function now does nothing.
6132 [Side note: I get *lots* of email saying the extension code doesn't
6133 work because people forget to call this function]
6134 Also no dynamic allocation is done unless new extensions are added:
6135 so if we don't add custom extensions there is no need to call
6136 X509V3_EXT_cleanup().
6139 *) Modify enc utility's salting as follows: make salting the default. Add a
6140 magic header, so unsalted files fail gracefully instead of just decrypting
6141 to garbage. This is because not salting is a big security hole, so people
6142 should be discouraged from doing it.
6145 *) Fixes and enhancements to the 'x509' utility. It allowed a message
6146 digest to be passed on the command line but it only used this
6147 parameter when signing a certificate. Modified so all relevant
6148 operations are affected by the digest parameter including the
6149 -fingerprint and -x509toreq options. Also -x509toreq choked if a
6150 DSA key was used because it didn't fix the digest.
6153 *) Initial certificate chain verify code. Currently tests the untrusted
6154 certificates for consistency with the verify purpose (which is set
6155 when the X509_STORE_CTX structure is set up) and checks the pathlength.
6157 There is a NO_CHAIN_VERIFY compilation option to keep the old behaviour:
6158 this is because it will reject chains with invalid extensions whereas
6159 every previous version of OpenSSL and SSLeay made no checks at all.
6161 Trust code: checks the root CA for the relevant trust settings. Trust
6162 settings have an initial value consistent with the verify purpose: e.g.
6163 if the verify purpose is for SSL client use it expects the CA to be
6164 trusted for SSL client use. However the default value can be changed to
6165 permit custom trust settings: one example of this would be to only trust
6166 certificates from a specific "secure" set of CAs.
6168 Also added X509_STORE_CTX_new() and X509_STORE_CTX_free() functions
6169 which should be used for version portability: especially since the
6170 verify structure is likely to change more often now.
6172 SSL integration. Add purpose and trust to SSL_CTX and SSL and functions
6173 to set them. If not set then assume SSL clients will verify SSL servers
6176 Two new options to the verify program: -untrusted allows a set of
6177 untrusted certificates to be passed in and -purpose which sets the
6178 intended purpose of the certificate. If a purpose is set then the
6179 new chain verify code is used to check extension consistency.
6182 *) Support for the authority information access extension.
6185 *) Modify RSA and DSA PEM read routines to transparently handle
6186 PKCS#8 format private keys. New *_PUBKEY_* functions that handle
6187 public keys in a format compatible with certificate
6188 SubjectPublicKeyInfo structures. Unfortunately there were already
6189 functions called *_PublicKey_* which used various odd formats so
6190 these are retained for compatibility: however the DSA variants were
6191 never in a public release so they have been deleted. Changed dsa/rsa
6192 utilities to handle the new format: note no releases ever handled public
6193 keys so we should be OK.
6195 The primary motivation for this change is to avoid the same fiasco
6196 that dogs private keys: there are several incompatible private key
6197 formats some of which are standard and some OpenSSL specific and
6198 require various evil hacks to allow partial transparent handling and
6199 even then it doesn't work with DER formats. Given the option anything
6200 other than PKCS#8 should be dumped: but the other formats have to
6201 stay in the name of compatibility.
6203 With public keys and the benefit of hindsight one standard format
6204 is used which works with EVP_PKEY, RSA or DSA structures: though
6205 it clearly returns an error if you try to read the wrong kind of key.
6207 Added a -pubkey option to the 'x509' utility to output the public key.
6208 Also rename the EVP_PKEY_get_*() to EVP_PKEY_rget_*()
6209 (renamed to EVP_PKEY_get1_*() in the OpenSSL 0.9.5 release) and add
6210 EVP_PKEY_rset_*() functions (renamed to EVP_PKEY_set1_*())
6211 that do the same as the EVP_PKEY_assign_*() except they up the
6212 reference count of the added key (they don't "swallow" the
6216 *) Fixes to crypto/x509/by_file.c the code to read in certificates and
6217 CRLs would fail if the file contained no certificates or no CRLs:
6218 added a new function to read in both types and return the number
6219 read: this means that if none are read it will be an error. The
6220 DER versions of the certificate and CRL reader would always fail
6221 because it isn't possible to mix certificates and CRLs in DER format
6222 without choking one or the other routine. Changed this to just read
6223 a certificate: this is the best we can do. Also modified the code
6224 in apps/verify.c to take notice of return codes: it was previously
6225 attempting to read in certificates from NULL pointers and ignoring
6226 any errors: this is one reason why the cert and CRL reader seemed
6227 to work. It doesn't check return codes from the default certificate
6228 routines: these may well fail if the certificates aren't installed.
6231 *) Code to support otherName option in GeneralName.
6234 *) First update to verify code. Change the verify utility
6235 so it warns if it is passed a self signed certificate:
6236 for consistency with the normal behaviour. X509_verify
6237 has been modified to it will now verify a self signed
6238 certificate if *exactly* the same certificate appears
6239 in the store: it was previously impossible to trust a
6240 single self signed certificate. This means that:
6241 openssl verify ss.pem
6242 now gives a warning about a self signed certificate but
6243 openssl verify -CAfile ss.pem ss.pem
6247 *) For servers, store verify_result in SSL_SESSION data structure
6248 (and add it to external session representation).
6249 This is needed when client certificate verifications fails,
6250 but an application-provided verification callback (set by
6251 SSL_CTX_set_cert_verify_callback) allows accepting the session
6252 anyway (i.e. leaves x509_store_ctx->error != X509_V_OK
6253 but returns 1): When the session is reused, we have to set
6254 ssl->verify_result to the appropriate error code to avoid
6256 [Bodo Moeller, problem pointed out by Lutz Jaenicke]
6258 *) Fix a bug in the new PKCS#7 code: it didn't consider the
6259 case in PKCS7_dataInit() where the signed PKCS7 structure
6260 didn't contain any existing data because it was being created.
6261 [Po-Cheng Chen <pocheng@nst.com.tw>, slightly modified by Steve Henson]
6263 *) Add a salt to the key derivation routines in enc.c. This
6264 forms the first 8 bytes of the encrypted file. Also add a
6265 -S option to allow a salt to be input on the command line.
6268 *) New function X509_cmp(). Oddly enough there wasn't a function
6269 to compare two certificates. We do this by working out the SHA1
6270 hash and comparing that. X509_cmp() will be needed by the trust
6274 *) SSL_get1_session() is like SSL_get_session(), but increments
6275 the reference count in the SSL_SESSION returned.
6276 [Geoff Thorpe <geoff@eu.c2.net>]
6278 *) Fix for 'req': it was adding a null to request attributes.
6279 Also change the X509_LOOKUP and X509_INFO code to handle
6280 certificate auxiliary information.
6283 *) Add support for 40 and 64 bit RC2 and RC4 algorithms: document
6287 *) Add the possibility to add extra information to the memory leak
6288 detecting output, to form tracebacks, showing from where each
6289 allocation was originated: CRYPTO_push_info("constant string") adds
6290 the string plus current file name and line number to a per-thread
6291 stack, CRYPTO_pop_info() does the obvious, CRYPTO_remove_all_info()
6292 is like calling CYRPTO_pop_info() until the stack is empty.
6293 Also updated memory leak detection code to be multi-thread-safe.
6296 *) Add options -text and -noout to pkcs7 utility and delete the
6297 encryption options which never did anything. Update docs.
6300 *) Add options to some of the utilities to allow the pass phrase
6301 to be included on either the command line (not recommended on
6302 OSes like Unix) or read from the environment. Update the
6303 manpages and fix a few bugs.
6306 *) Add a few manpages for some of the openssl commands.
6309 *) Fix the -revoke option in ca. It was freeing up memory twice,
6310 leaking and not finding already revoked certificates.
6313 *) Extensive changes to support certificate auxiliary information.
6314 This involves the use of X509_CERT_AUX structure and X509_AUX
6315 functions. An X509_AUX function such as PEM_read_X509_AUX()
6316 can still read in a certificate file in the usual way but it
6317 will also read in any additional "auxiliary information". By
6318 doing things this way a fair degree of compatibility can be
6319 retained: existing certificates can have this information added
6320 using the new 'x509' options.
6322 Current auxiliary information includes an "alias" and some trust
6323 settings. The trust settings will ultimately be used in enhanced
6324 certificate chain verification routines: currently a certificate
6325 can only be trusted if it is self signed and then it is trusted
6329 *) Fix assembler for Alpha (tested only on DEC OSF not Linux or *BSD).
6330 The problem was that one of the replacement routines had not been working
6331 since SSLeay releases. For now the offending routine has been replaced
6332 with non-optimised assembler. Even so, this now gives around 95%
6333 performance improvement for 1024 bit RSA signs.
6336 *) Hack to fix PKCS#7 decryption when used with some unorthodox RC2
6337 handling. Most clients have the effective key size in bits equal to
6338 the key length in bits: so a 40 bit RC2 key uses a 40 bit (5 byte) key.
6339 A few however don't do this and instead use the size of the decrypted key
6340 to determine the RC2 key length and the AlgorithmIdentifier to determine
6341 the effective key length. In this case the effective key length can still
6342 be 40 bits but the key length can be 168 bits for example. This is fixed
6343 by manually forcing an RC2 key into the EVP_PKEY structure because the
6344 EVP code can't currently handle unusual RC2 key sizes: it always assumes
6345 the key length and effective key length are equal.
6348 *) Add a bunch of functions that should simplify the creation of
6349 X509_NAME structures. Now you should be able to do:
6350 X509_NAME_add_entry_by_txt(nm, "CN", MBSTRING_ASC, "Steve", -1, -1, 0);
6351 and have it automatically work out the correct field type and fill in
6352 the structures. The more adventurous can try:
6353 X509_NAME_add_entry_by_txt(nm, field, MBSTRING_UTF8, str, -1, -1, 0);
6354 and it will (hopefully) work out the correct multibyte encoding.
6357 *) Change the 'req' utility to use the new field handling and multibyte
6358 copy routines. Before the DN field creation was handled in an ad hoc
6359 way in req, ca, and x509 which was rather broken and didn't support
6360 BMPStrings or UTF8Strings. Since some software doesn't implement
6361 BMPStrings or UTF8Strings yet, they can be enabled using the config file
6362 using the dirstring_type option. See the new comment in the default
6363 openssl.cnf for more info.
6366 *) Make crypto/rand/md_rand.c more robust:
6367 - Assure unique random numbers after fork().
6368 - Make sure that concurrent threads access the global counter and
6369 md serializably so that we never lose entropy in them
6370 or use exactly the same state in multiple threads.
6371 Access to the large state is not always serializable because
6372 the additional locking could be a performance killer, and
6373 md should be large enough anyway.
6376 *) New file apps/app_rand.c with commonly needed functionality
6377 for handling the random seed file.
6379 Use the random seed file in some applications that previously did not:
6381 dsaparam -genkey (which also ignored its '-rand' option),
6384 x509 (when signing).
6385 Except on systems with /dev/urandom, it is crucial to have a random
6386 seed file at least for key creation, DSA signing, and for DH exchanges;
6387 for RSA signatures we could do without one.
6389 gendh and gendsa (unlike genrsa) used to read only the first byte
6390 of each file listed in the '-rand' option. The function as previously
6391 found in genrsa is now in app_rand.c and is used by all programs
6392 that support '-rand'.
6395 *) In RAND_write_file, use mode 0600 for creating files;
6396 don't just chmod when it may be too late.
6399 *) Report an error from X509_STORE_load_locations
6400 when X509_LOOKUP_load_file or X509_LOOKUP_add_dir failed.
6403 *) New function ASN1_mbstring_copy() this copies a string in either
6404 ASCII, Unicode, Universal (4 bytes per character) or UTF8 format
6405 into an ASN1_STRING type. A mask of permissible types is passed
6406 and it chooses the "minimal" type to use or an error if not type
6410 *) Add function equivalents to the various macros in asn1.h. The old
6411 macros are retained with an M_ prefix. Code inside the library can
6412 use the M_ macros. External code (including the openssl utility)
6413 should *NOT* in order to be "shared library friendly".
6416 *) Add various functions that can check a certificate's extensions
6417 to see if it usable for various purposes such as SSL client,
6418 server or S/MIME and CAs of these types. This is currently
6419 VERY EXPERIMENTAL but will ultimately be used for certificate chain
6420 verification. Also added a -purpose flag to x509 utility to
6421 print out all the purposes.
6424 *) Add a CRYPTO_EX_DATA to X509 certificate structure and associated
6428 *) New X509V3_{X509,CRL,REVOKED}_get_d2i() functions. These will search
6429 for, obtain and decode and extension and obtain its critical flag.
6430 This allows all the necessary extension code to be handled in a
6431 single function call.
6434 *) RC4 tune-up featuring 30-40% performance improvement on most RISC
6435 platforms. See crypto/rc4/rc4_enc.c for further details.
6438 *) New -noout option to asn1parse. This causes no output to be produced
6439 its main use is when combined with -strparse and -out to extract data
6440 from a file (which may not be in ASN.1 format).
6443 *) Fix for pkcs12 program. It was hashing an invalid certificate pointer
6444 when producing the local key id.
6445 [Richard Levitte <levitte@stacken.kth.se>]
6447 *) New option -dhparam in s_server. This allows a DH parameter file to be
6448 stated explicitly. If it is not stated then it tries the first server
6449 certificate file. The previous behaviour hard coded the filename
6453 *) Add -pubin and -pubout options to the rsa and dsa commands. These allow
6454 a public key to be input or output. For example:
6455 openssl rsa -in key.pem -pubout -out pubkey.pem
6456 Also added necessary DSA public key functions to handle this.
6459 *) Fix so PKCS7_dataVerify() doesn't crash if no certificates are contained
6460 in the message. This was handled by allowing
6461 X509_find_by_issuer_and_serial() to tolerate a NULL passed to it.
6462 [Steve Henson, reported by Sampo Kellomaki <sampo@mail.neuronio.pt>]
6464 *) Fix for bug in d2i_ASN1_bytes(): other ASN1 functions add an extra null
6465 to the end of the strings whereas this didn't. This would cause problems
6466 if strings read with d2i_ASN1_bytes() were later modified.
6467 [Steve Henson, reported by Arne Ansper <arne@ats.cyber.ee>]
6469 *) Fix for base64 decode bug. When a base64 bio reads only one line of
6470 data and it contains EOF it will end up returning an error. This is
6471 caused by input 46 bytes long. The cause is due to the way base64
6472 BIOs find the start of base64 encoded data. They do this by trying a
6473 trial decode on each line until they find one that works. When they
6474 do a flag is set and it starts again knowing it can pass all the
6475 data directly through the decoder. Unfortunately it doesn't reset
6476 the context it uses. This means that if EOF is reached an attempt
6477 is made to pass two EOFs through the context and this causes the
6478 resulting error. This can also cause other problems as well. As is
6479 usual with these problems it takes *ages* to find and the fix is
6480 trivial: move one line.
6481 [Steve Henson, reported by ian@uns.ns.ac.yu (Ivan Nejgebauer) ]
6483 *) Ugly workaround to get s_client and s_server working under Windows. The
6484 old code wouldn't work because it needed to select() on sockets and the
6485 tty (for keypresses and to see if data could be written). Win32 only
6486 supports select() on sockets so we select() with a 1s timeout on the
6487 sockets and then see if any characters are waiting to be read, if none
6488 are present then we retry, we also assume we can always write data to
6489 the tty. This isn't nice because the code then blocks until we've
6490 received a complete line of data and it is effectively polling the
6491 keyboard at 1s intervals: however it's quite a bit better than not
6492 working at all :-) A dedicated Windows application might handle this
6493 with an event loop for example.
6496 *) Enhance RSA_METHOD structure. Now there are two extra methods, rsa_sign
6497 and rsa_verify. When the RSA_FLAGS_SIGN_VER option is set these functions
6498 will be called when RSA_sign() and RSA_verify() are used. This is useful
6499 if rsa_pub_dec() and rsa_priv_enc() equivalents are not available.
6500 For this to work properly RSA_public_decrypt() and RSA_private_encrypt()
6501 should *not* be used: RSA_sign() and RSA_verify() must be used instead.
6502 This necessitated the support of an extra signature type NID_md5_sha1
6503 for SSL signatures and modifications to the SSL library to use it instead
6504 of calling RSA_public_decrypt() and RSA_private_encrypt().
6507 *) Add new -verify -CAfile and -CApath options to the crl program, these
6508 will lookup a CRL issuers certificate and verify the signature in a
6509 similar way to the verify program. Tidy up the crl program so it
6510 no longer accesses structures directly. Make the ASN1 CRL parsing a bit
6511 less strict. It will now permit CRL extensions even if it is not
6512 a V2 CRL: this will allow it to tolerate some broken CRLs.
6515 *) Initialize all non-automatic variables each time one of the openssl
6516 sub-programs is started (this is necessary as they may be started
6517 multiple times from the "OpenSSL>" prompt).
6518 [Lennart Bang, Bodo Moeller]
6520 *) Preliminary compilation option RSA_NULL which disables RSA crypto without
6521 removing all other RSA functionality (this is what NO_RSA does). This
6522 is so (for example) those in the US can disable those operations covered
6523 by the RSA patent while allowing storage and parsing of RSA keys and RSA
6527 *) Non-copying interface to BIO pairs.
6528 (still largely untested)
6531 *) New function ANS1_tag2str() to convert an ASN1 tag to a descriptive
6532 ASCII string. This was handled independently in various places before.
6535 *) New functions UTF8_getc() and UTF8_putc() that parse and generate
6536 UTF8 strings a character at a time.
6539 *) Use client_version from client hello to select the protocol
6540 (s23_srvr.c) and for RSA client key exchange verification
6541 (s3_srvr.c), as required by the SSL 3.0/TLS 1.0 specifications.
6544 *) Add various utility functions to handle SPKACs, these were previously
6545 handled by poking round in the structure internals. Added new function
6546 NETSCAPE_SPKI_print() to print out SPKAC and a new utility 'spkac' to
6547 print, verify and generate SPKACs. Based on an original idea from
6548 Massimiliano Pala <madwolf@comune.modena.it> but extensively modified.
6551 *) RIPEMD160 is operational on all platforms and is back in 'make test'.
6554 *) Allow the config file extension section to be overwritten on the
6555 command line. Based on an original idea from Massimiliano Pala
6556 <madwolf@comune.modena.it>. The new option is called -extensions
6557 and can be applied to ca, req and x509. Also -reqexts to override
6558 the request extensions in req and -crlexts to override the crl extensions
6562 *) Add new feature to the SPKAC handling in ca. Now you can include
6563 the same field multiple times by preceding it by "XXXX." for example:
6566 this is the same syntax as used in the req config file.
6569 *) Allow certificate extensions to be added to certificate requests. These
6570 are specified in a 'req_extensions' option of the req section of the
6571 config file. They can be printed out with the -text option to req but
6572 are otherwise ignored at present.
6575 *) Fix a horrible bug in enc_read() in crypto/evp/bio_enc.c: if the first
6576 data read consists of only the final block it would not decrypted because
6577 EVP_CipherUpdate() would correctly report zero bytes had been decrypted.
6578 A misplaced 'break' also meant the decrypted final block might not be
6579 copied until the next read.
6582 *) Initial support for DH_METHOD. Again based on RSA_METHOD. Also added
6583 a few extra parameters to the DH structure: these will be useful if
6584 for example we want the value of 'q' or implement X9.42 DH.
6587 *) Initial support for DSA_METHOD. This is based on the RSA_METHOD and
6588 provides hooks that allow the default DSA functions or functions on a
6589 "per key" basis to be replaced. This allows hardware acceleration and
6590 hardware key storage to be handled without major modification to the
6591 library. Also added low level modexp hooks and CRYPTO_EX structure and
6592 associated functions.
6595 *) Add a new flag to memory BIOs, BIO_FLAG_MEM_RDONLY. This marks the BIO
6596 as "read only": it can't be written to and the buffer it points to will
6597 not be freed. Reading from a read only BIO is much more efficient than
6598 a normal memory BIO. This was added because there are several times when
6599 an area of memory needs to be read from a BIO. The previous method was
6600 to create a memory BIO and write the data to it, this results in two
6601 copies of the data and an O(n^2) reading algorithm. There is a new
6602 function BIO_new_mem_buf() which creates a read only memory BIO from
6603 an area of memory. Also modified the PKCS#7 routines to use read only
6607 *) Bugfix: ssl23_get_client_hello did not work properly when called in
6608 state SSL23_ST_SR_CLNT_HELLO_B, i.e. when the first 7 bytes of
6609 a SSLv2-compatible client hello for SSLv3 or TLSv1 could be read,
6610 but a retry condition occured while trying to read the rest.
6613 *) The PKCS7_ENC_CONTENT_new() function was setting the content type as
6614 NID_pkcs7_encrypted by default: this was wrong since this should almost
6615 always be NID_pkcs7_data. Also modified the PKCS7_set_type() to handle
6616 the encrypted data type: this is a more sensible place to put it and it
6617 allows the PKCS#12 code to be tidied up that duplicated this
6621 *) Changed obj_dat.pl script so it takes its input and output files on
6622 the command line. This should avoid shell escape redirection problems
6626 *) Initial support for certificate extension requests, these are included
6627 in things like Xenroll certificate requests. Included functions to allow
6628 extensions to be obtained and added.
6631 *) -crlf option to s_client and s_server for sending newlines as
6632 CRLF (as required by many protocols).
6635 Changes between 0.9.3a and 0.9.4 [09 Aug 1999]
6637 *) Install libRSAglue.a when OpenSSL is built with RSAref.
6638 [Ralf S. Engelschall]
6640 *) A few more ``#ifndef NO_FP_API / #endif'' pairs for consistency.
6641 [Andrija Antonijevic <TheAntony2@bigfoot.com>]
6643 *) Fix -startdate and -enddate (which was missing) arguments to 'ca'
6647 *) New function DSA_dup_DH, which duplicates DSA parameters/keys as
6648 DH parameters/keys (q is lost during that conversion, but the resulting
6649 DH parameters contain its length).
6651 For 1024-bit p, DSA_generate_parameters followed by DSA_dup_DH is
6652 much faster than DH_generate_parameters (which creates parameters
6653 where p = 2*q + 1), and also the smaller q makes DH computations
6654 much more efficient (160-bit exponentiation instead of 1024-bit
6655 exponentiation); so this provides a convenient way to support DHE
6656 ciphersuites in SSL/TLS servers (see ssl/ssltest.c). It is of
6657 utter importance to use
6658 SSL_CTX_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
6660 SSL_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
6661 when such DH parameters are used, because otherwise small subgroup
6662 attacks may become possible!
6665 *) Avoid memory leak in i2d_DHparams.
6668 *) Allow the -k option to be used more than once in the enc program:
6669 this allows the same encrypted message to be read by multiple recipients.
6672 *) New function OBJ_obj2txt(buf, buf_len, a, no_name), this converts
6673 an ASN1_OBJECT to a text string. If the "no_name" parameter is set then
6674 it will always use the numerical form of the OID, even if it has a short
6678 *) Added an extra RSA flag: RSA_FLAG_EXT_PKEY. Previously the rsa_mod_exp
6679 method only got called if p,q,dmp1,dmq1,iqmp components were present,
6680 otherwise bn_mod_exp was called. In the case of hardware keys for example
6681 no private key components need be present and it might store extra data
6682 in the RSA structure, which cannot be accessed from bn_mod_exp.
6683 By setting RSA_FLAG_EXT_PKEY rsa_mod_exp will always be called for
6684 private key operations.
6687 *) Added support for SPARC Linux.
6690 *) pem_password_cb function type incompatibly changed from
6691 typedef int pem_password_cb(char *buf, int size, int rwflag);
6693 ....(char *buf, int size, int rwflag, void *userdata);
6694 so that applications can pass data to their callbacks:
6695 The PEM[_ASN1]_{read,write}... functions and macros now take an
6696 additional void * argument, which is just handed through whenever
6697 the password callback is called.
6698 [Damien Miller <dmiller@ilogic.com.au>; tiny changes by Bodo Moeller]
6700 New function SSL_CTX_set_default_passwd_cb_userdata.
6702 Compatibility note: As many C implementations push function arguments
6703 onto the stack in reverse order, the new library version is likely to
6704 interoperate with programs that have been compiled with the old
6705 pem_password_cb definition (PEM_whatever takes some data that
6706 happens to be on the stack as its last argument, and the callback
6707 just ignores this garbage); but there is no guarantee whatsoever that
6710 *) The -DPLATFORM="\"$(PLATFORM)\"" definition and the similar -DCFLAGS=...
6711 (both in crypto/Makefile.ssl for use by crypto/cversion.c) caused
6712 problems not only on Windows, but also on some Unix platforms.
6713 To avoid problematic command lines, these definitions are now in an
6714 auto-generated file crypto/buildinf.h (created by crypto/Makefile.ssl
6715 for standard "make" builds, by util/mk1mf.pl for "mk1mf" builds).
6718 *) MIPS III/IV assembler module is reimplemented.
6721 *) More DES library cleanups: remove references to srand/rand and
6722 delete an unused file.
6725 *) Add support for the the free Netwide assembler (NASM) under Win32,
6726 since not many people have MASM (ml) and it can be hard to obtain.
6727 This is currently experimental but it seems to work OK and pass all
6728 the tests. Check out INSTALL.W32 for info.
6731 *) Fix memory leaks in s3_clnt.c: All non-anonymous SSL3/TLS1 connections
6732 without temporary keys kept an extra copy of the server key,
6733 and connections with temporary keys did not free everything in case
6737 *) New function RSA_check_key and new openssl rsa option -check
6738 for verifying the consistency of RSA keys.
6739 [Ulf Moeller, Bodo Moeller]
6741 *) Various changes to make Win32 compile work:
6742 1. Casts to avoid "loss of data" warnings in p5_crpt2.c
6743 2. Change unsigned int to int in b_dump.c to avoid "signed/unsigned
6744 comparison" warnings.
6745 3. Add sk_<TYPE>_sort to DEF file generator and do make update.
6748 *) Add a debugging option to PKCS#5 v2 key generation function: when
6749 you #define DEBUG_PKCS5V2 passwords, salts, iteration counts and
6750 derived keys are printed to stderr.
6753 *) Copy the flags in ASN1_STRING_dup().
6754 [Roman E. Pavlov <pre@mo.msk.ru>]
6756 *) The x509 application mishandled signing requests containing DSA
6757 keys when the signing key was also DSA and the parameters didn't match.
6759 It was supposed to omit the parameters when they matched the signing key:
6760 the verifying software was then supposed to automatically use the CA's
6761 parameters if they were absent from the end user certificate.
6763 Omitting parameters is no longer recommended. The test was also
6764 the wrong way round! This was probably due to unusual behaviour in
6765 EVP_cmp_parameters() which returns 1 if the parameters match.
6766 This meant that parameters were omitted when they *didn't* match and
6767 the certificate was useless. Certificates signed with 'ca' didn't have
6769 [Steve Henson, reported by Doug Erickson <Doug.Erickson@Part.NET>]
6771 *) Memory leak checking (-DCRYPTO_MDEBUG) had some problems.
6772 The interface is as follows:
6773 Applications can use
6774 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON) aka MemCheck_start(),
6775 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_OFF) aka MemCheck_stop();
6776 "off" is now the default.
6777 The library internally uses
6778 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_DISABLE) aka MemCheck_off(),
6779 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ENABLE) aka MemCheck_on()
6780 to disable memory-checking temporarily.
6782 Some inconsistent states that previously were possible (and were
6783 even the default) are now avoided.
6785 -DCRYPTO_MDEBUG_TIME is new and additionally stores the current time
6786 with each memory chunk allocated; this is occasionally more helpful
6787 than just having a counter.
6789 -DCRYPTO_MDEBUG_THREAD is also new and adds the thread ID.
6791 -DCRYPTO_MDEBUG_ALL enables all of the above, plus any future
6795 *) Introduce "mode" for SSL structures (with defaults in SSL_CTX),
6796 which largely parallels "options", but is for changing API behaviour,
6797 whereas "options" are about protocol behaviour.
6798 Initial "mode" flags are:
6800 SSL_MODE_ENABLE_PARTIAL_WRITE Allow SSL_write to report success when
6801 a single record has been written.
6802 SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER Don't insist that SSL_write
6803 retries use the same buffer location.
6804 (But all of the contents must be
6808 *) Bugfix: SSL_set_options ignored its parameter, only SSL_CTX_set_options
6811 *) Fix problems with no-hmac etc.
6812 [Ulf Möller, pointed out by Brian Wellington <bwelling@tislabs.com>]
6814 *) New functions RSA_get_default_method(), RSA_set_method() and
6815 RSA_get_method(). These allows replacement of RSA_METHODs without having
6816 to mess around with the internals of an RSA structure.
6819 *) Fix memory leaks in DSA_do_sign and DSA_is_prime.
6820 Also really enable memory leak checks in openssl.c and in some
6822 [Chad C. Mulligan, Bodo Moeller]
6824 *) Fix a bug in d2i_ASN1_INTEGER() and i2d_ASN1_INTEGER() which can mess
6825 up the length of negative integers. This has now been simplified to just
6826 store the length when it is first determined and use it later, rather
6827 than trying to keep track of where data is copied and updating it to
6829 [Steve Henson, reported by Brien Wheeler
6830 <bwheeler@authentica-security.com>]
6832 *) Add a new function PKCS7_signatureVerify. This allows the verification
6833 of a PKCS#7 signature but with the signing certificate passed to the
6834 function itself. This contrasts with PKCS7_dataVerify which assumes the
6835 certificate is present in the PKCS#7 structure. This isn't always the
6836 case: certificates can be omitted from a PKCS#7 structure and be
6837 distributed by "out of band" means (such as a certificate database).
6840 *) Complete the PEM_* macros with DECLARE_PEM versions to replace the
6841 function prototypes in pem.h, also change util/mkdef.pl to add the
6842 necessary function names.
6845 *) mk1mf.pl (used by Windows builds) did not properly read the
6846 options set by Configure in the top level Makefile, and Configure
6847 was not even able to write more than one option correctly.
6848 Fixed, now "no-idea no-rc5 -DCRYPTO_MDEBUG" etc. works as intended.
6851 *) New functions CONF_load_bio() and CONF_load_fp() to allow a config
6852 file to be loaded from a BIO or FILE pointer. The BIO version will
6853 for example allow memory BIOs to contain config info.
6856 *) New function "CRYPTO_num_locks" that returns CRYPTO_NUM_LOCKS.
6857 Whoever hopes to achieve shared-library compatibility across versions
6858 must use this, not the compile-time macro.
6859 (Exercise 0.9.4: Which is the minimum library version required by
6861 Note: All this applies only to multi-threaded programs, others don't
6865 *) Add missing case to s3_clnt.c state machine -- one of the new SSL tests
6866 through a BIO pair triggered the default case, i.e.
6867 SSLerr(...,SSL_R_UNKNOWN_STATE).
6870 *) New "BIO pair" concept (crypto/bio/bss_bio.c) so that applications
6871 can use the SSL library even if none of the specific BIOs is
6875 *) Fix a bug in i2d_DSAPublicKey() which meant it returned the wrong value
6876 for the encoded length.
6877 [Jeon KyoungHo <khjeon@sds.samsung.co.kr>]
6879 *) Add initial documentation of the X509V3 functions.
6882 *) Add a new pair of functions PEM_write_PKCS8PrivateKey() and
6883 PEM_write_bio_PKCS8PrivateKey() that are equivalent to
6884 PEM_write_PrivateKey() and PEM_write_bio_PrivateKey() but use the more
6885 secure PKCS#8 private key format with a high iteration count.
6888 *) Fix determination of Perl interpreter: A perl or perl5
6889 _directory_ in $PATH was also accepted as the interpreter.
6890 [Ralf S. Engelschall]
6892 *) Fix demos/sign/sign.c: well there wasn't anything strictly speaking
6893 wrong with it but it was very old and did things like calling
6894 PEM_ASN1_read() directly and used MD5 for the hash not to mention some
6898 *) Fix demos/selfsign.c: it used obsolete and deleted functions, changed
6899 to use the new extension code.
6902 *) Implement the PEM_read/PEM_write functions in crypto/pem/pem_all.c
6903 with macros. This should make it easier to change their form, add extra
6904 arguments etc. Fix a few PEM prototypes which didn't have cipher as a
6908 *) Add to configuration table a new entry that can specify an alternative
6909 name for unistd.h (for pre-POSIX systems); we need this for NeXTstep,
6910 according to Mark Crispin <MRC@Panda.COM>.
6914 *) DES CBC did not update the IV. Weird.
6917 des_cbc_encrypt does not update the IV, but des_ncbc_encrypt does.
6918 Changing the behaviour of the former might break existing programs --
6919 where IV updating is needed, des_ncbc_encrypt can be used.
6922 *) When bntest is run from "make test" it drives bc to check its
6923 calculations, as well as internally checking them. If an internal check
6924 fails, it needs to cause bc to give a non-zero result or make test carries
6925 on without noticing the failure. Fixed.
6928 *) DES library cleanups.
6931 *) Add support for PKCS#5 v2.0 PBE algorithms. This will permit PKCS#8 to be
6932 used with any cipher unlike PKCS#5 v1.5 which can at most handle 64 bit
6933 ciphers. NOTE: although the key derivation function has been verified
6934 against some published test vectors it has not been extensively tested
6935 yet. Added a -v2 "cipher" option to pkcs8 application to allow the use
6939 *) Instead of "mkdir -p", which is not fully portable, use new
6940 Perl script "util/mkdir-p.pl".
6943 *) Rewrite the way password based encryption (PBE) is handled. It used to
6944 assume that the ASN1 AlgorithmIdentifier parameter was a PBEParameter
6945 structure. This was true for the PKCS#5 v1.5 and PKCS#12 PBE algorithms
6946 but doesn't apply to PKCS#5 v2.0 where it can be something else. Now
6947 the 'parameter' field of the AlgorithmIdentifier is passed to the
6948 underlying key generation function so it must do its own ASN1 parsing.
6949 This has also changed the EVP_PBE_CipherInit() function which now has a
6950 'parameter' argument instead of literal salt and iteration count values
6951 and the function EVP_PBE_ALGOR_CipherInit() has been deleted.
6954 *) Support for PKCS#5 v1.5 compatible password based encryption algorithms
6955 and PKCS#8 functionality. New 'pkcs8' application linked to openssl.
6956 Needed to change the PEM_STRING_EVP_PKEY value which was just "PRIVATE
6957 KEY" because this clashed with PKCS#8 unencrypted string. Since this
6958 value was just used as a "magic string" and not used directly its
6959 value doesn't matter.
6962 *) Introduce some semblance of const correctness to BN. Shame C doesn't
6966 *) "linux-sparc64" configuration (ultrapenguin).
6967 [Ray Miller <ray.miller@oucs.ox.ac.uk>]
6968 "linux-sparc" configuration.
6969 [Christian Forster <fo@hawo.stw.uni-erlangen.de>]
6971 *) config now generates no-xxx options for missing ciphers.
6974 *) Support the EBCDIC character set (work in progress).
6975 File ebcdic.c not yet included because it has a different license.
6976 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
6978 *) Support BS2000/OSD-POSIX.
6979 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
6981 *) Make callbacks for key generation use void * instead of char *.
6984 *) Make S/MIME samples compile (not yet tested).
6987 *) Additional typesafe stacks.
6990 *) New configuration variants "bsdi-elf-gcc" (BSD/OS 4.x).
6994 Changes between 0.9.3 and 0.9.3a [29 May 1999]
6996 *) New configuration variant "sco5-gcc".
6998 *) Updated some demos.
6999 [Sean O Riordain, Wade Scholine]
7001 *) Add missing BIO_free at exit of pkcs12 application.
7004 *) Fix memory leak in conf.c.
7007 *) Updates for Win32 to assembler version of MD5.
7010 *) Set #! path to perl in apps/der_chop to where we found it
7011 instead of using a fixed path.
7014 *) SHA library changes for irix64-mips4-cc.
7017 *) Improvements for VMS support.
7021 Changes between 0.9.2b and 0.9.3 [24 May 1999]
7023 *) Bignum library bug fix. IRIX 6 passes "make test" now!
7024 This also avoids the problems with SC4.2 and unpatched SC5.
7025 [Andy Polyakov <appro@fy.chalmers.se>]
7027 *) New functions sk_num, sk_value and sk_set to replace the previous macros.
7028 These are required because of the typesafe stack would otherwise break
7029 existing code. If old code used a structure member which used to be STACK
7030 and is now STACK_OF (for example cert in a PKCS7_SIGNED structure) with
7031 sk_num or sk_value it would produce an error because the num, data members
7032 are not present in STACK_OF. Now it just produces a warning. sk_set
7033 replaces the old method of assigning a value to sk_value
7034 (e.g. sk_value(x, i) = y) which the library used in a few cases. Any code
7035 that does this will no longer work (and should use sk_set instead) but
7036 this could be regarded as a "questionable" behaviour anyway.
7039 *) Fix most of the other PKCS#7 bugs. The "experimental" code can now
7040 correctly handle encrypted S/MIME data.
7043 *) Change type of various DES function arguments from des_cblock
7044 (which means, in function argument declarations, pointer to char)
7045 to des_cblock * (meaning pointer to array with 8 char elements),
7046 which allows the compiler to do more typechecking; it was like
7047 that back in SSLeay, but with lots of ugly casts.
7049 Introduce new type const_des_cblock.
7052 *) Reorganise the PKCS#7 library and get rid of some of the more obvious
7053 problems: find RecipientInfo structure that matches recipient certificate
7054 and initialise the ASN1 structures properly based on passed cipher.
7057 *) Belatedly make the BN tests actually check the results.
7060 *) Fix the encoding and decoding of negative ASN1 INTEGERS and conversion
7061 to and from BNs: it was completely broken. New compilation option
7062 NEG_PUBKEY_BUG to allow for some broken certificates that encode public
7063 key elements as negative integers.
7066 *) Reorganize and speed up MD5.
7067 [Andy Polyakov <appro@fy.chalmers.se>]
7070 [Richard Levitte <richard@levitte.org>]
7072 *) New option -out to asn1parse to allow the parsed structure to be
7073 output to a file. This is most useful when combined with the -strparse
7074 option to examine the output of things like OCTET STRINGS.
7077 *) Make SSL library a little more fool-proof by not requiring any longer
7078 that SSL_set_{accept,connect}_state be called before
7079 SSL_{accept,connect} may be used (SSL_set_..._state is omitted
7080 in many applications because usually everything *appeared* to work as
7081 intended anyway -- now it really works as intended).
7084 *) Move openssl.cnf out of lib/.
7087 *) Fix various things to let OpenSSL even pass ``egcc -pipe -O2 -Wall
7088 -Wshadow -Wpointer-arith -Wcast-align -Wmissing-prototypes
7089 -Wmissing-declarations -Wnested-externs -Winline'' with EGCS 1.1.2+
7090 [Ralf S. Engelschall]
7092 *) Various fixes to the EVP and PKCS#7 code. It may now be able to
7093 handle PKCS#7 enveloped data properly.
7094 [Sebastian Akerman <sak@parallelconsulting.com>, modified by Steve]
7096 *) Create a duplicate of the SSL_CTX's CERT in SSL_new instead of
7097 copying pointers. The cert_st handling is changed by this in
7098 various ways (and thus what used to be known as ctx->default_cert
7099 is now called ctx->cert, since we don't resort to s->ctx->[default_]cert
7100 any longer when s->cert does not give us what we need).
7101 ssl_cert_instantiate becomes obsolete by this change.
7102 As soon as we've got the new code right (possibly it already is?),
7103 we have solved a couple of bugs of the earlier code where s->cert
7104 was used as if it could not have been shared with other SSL structures.
7106 Note that using the SSL API in certain dirty ways now will result
7107 in different behaviour than observed with earlier library versions:
7108 Changing settings for an SSL_CTX *ctx after having done s = SSL_new(ctx)
7109 does not influence s as it used to.
7111 In order to clean up things more thoroughly, inside SSL_SESSION
7112 we don't use CERT any longer, but a new structure SESS_CERT
7113 that holds per-session data (if available); currently, this is
7114 the peer's certificate chain and, for clients, the server's certificate
7115 and temporary key. CERT holds only those values that can have
7116 meaningful defaults in an SSL_CTX.
7119 *) New function X509V3_EXT_i2d() to create an X509_EXTENSION structure
7120 from the internal representation. Various PKCS#7 fixes: remove some
7121 evil casts and set the enc_dig_alg field properly based on the signing
7125 *) Allow PKCS#12 password to be set from the command line or the
7126 environment. Let 'ca' get its config file name from the environment
7127 variables "OPENSSL_CONF" or "SSLEAY_CONF" (for consistency with 'req'
7131 *) Allow certificate policies extension to use an IA5STRING for the
7132 organization field. This is contrary to the PKIX definition but
7133 VeriSign uses it and IE5 only recognises this form. Document 'x509'
7137 *) Add PEDANTIC compiler flag to allow compilation with gcc -pedantic,
7138 without disallowing inline assembler and the like for non-pedantic builds.
7141 *) Support Borland C++ builder.
7142 [Janez Jere <jj@void.si>, modified by Ulf Möller]
7147 *) SHA-1 cleanups and performance enhancements.
7148 [Andy Polyakov <appro@fy.chalmers.se>]
7150 *) Sparc v8plus assembler for the bignum library.
7151 [Andy Polyakov <appro@fy.chalmers.se>]
7153 *) Accept any -xxx and +xxx compiler options in Configure.
7156 *) Update HPUX configuration.
7159 *) Add missing sk_<type>_unshift() function to safestack.h
7160 [Ralf S. Engelschall]
7162 *) New function SSL_CTX_use_certificate_chain_file that sets the
7163 "extra_cert"s in addition to the certificate. (This makes sense
7164 only for "PEM" format files, as chains as a whole are not
7168 *) Support verify_depth from the SSL API.
7169 x509_vfy.c had what can be considered an off-by-one-error:
7170 Its depth (which was not part of the external interface)
7171 was actually counting the number of certificates in a chain;
7172 now it really counts the depth.
7175 *) Bugfix in crypto/x509/x509_cmp.c: The SSLerr macro was used
7176 instead of X509err, which often resulted in confusing error
7177 messages since the error codes are not globally unique
7178 (e.g. an alleged error in ssl3_accept when a certificate
7179 didn't match the private key).
7181 *) New function SSL_CTX_set_session_id_context that allows to set a default
7182 value (so that you don't need SSL_set_session_id_context for each
7183 connection using the SSL_CTX).
7186 *) OAEP decoding bug fix.
7189 *) Support INSTALL_PREFIX for package builders, as proposed by
7193 *) New Configure options "threads" and "no-threads". For systems
7194 where the proper compiler options are known (currently Solaris
7195 and Linux), "threads" is the default.
7198 *) New script util/mklink.pl as a faster substitute for util/mklink.sh.
7201 *) Install various scripts to $(OPENSSLDIR)/misc, not to
7202 $(INSTALLTOP)/bin -- they shouldn't clutter directories
7203 such as /usr/local/bin.
7206 *) "make linux-shared" to build shared libraries.
7207 [Niels Poppe <niels@netbox.org>]
7209 *) New Configure option no-<cipher> (rsa, idea, rc5, ...).
7212 *) Add the PKCS#12 API documentation to openssl.txt. Preliminary support for
7213 extension adding in x509 utility.
7216 *) Remove NOPROTO sections and error code comments.
7219 *) Partial rewrite of the DEF file generator to now parse the ANSI
7223 *) New Configure options --prefix=DIR and --openssldir=DIR.
7226 *) Complete rewrite of the error code script(s). It is all now handled
7227 by one script at the top level which handles error code gathering,
7228 header rewriting and C source file generation. It should be much better
7229 than the old method: it now uses a modified version of Ulf's parser to
7230 read the ANSI prototypes in all header files (thus the old K&R definitions
7231 aren't needed for error creation any more) and do a better job of
7232 translating function codes into names. The old 'ASN1 error code imbedded
7233 in a comment' is no longer necessary and it doesn't use .err files which
7234 have now been deleted. Also the error code call doesn't have to appear all
7235 on one line (which resulted in some large lines...).
7238 *) Change #include filenames from <foo.h> to <openssl/foo.h>.
7241 *) Change behaviour of ssl2_read when facing length-0 packets: Don't return
7242 0 (which usually indicates a closed connection), but continue reading.
7245 *) Fix some race conditions.
7248 *) Add support for CRL distribution points extension. Add Certificate
7249 Policies and CRL distribution points documentation.
7252 *) Move the autogenerated header file parts to crypto/opensslconf.h.
7255 *) Fix new 56-bit DES export ciphersuites: they were using 7 bytes instead of
7256 8 of keying material. Merlin has also confirmed interop with this fix
7257 between OpenSSL and Baltimore C/SSL 2.0 and J/SSL 2.0.
7258 [Merlin Hughes <merlin@baltimore.ie>]
7260 *) Fix lots of warnings.
7261 [Richard Levitte <levitte@stacken.kth.se>]
7263 *) In add_cert_dir() in crypto/x509/by_dir.c, break out of the loop if
7264 the directory spec didn't end with a LIST_SEPARATOR_CHAR.
7265 [Richard Levitte <levitte@stacken.kth.se>]
7267 *) Fix problems with sizeof(long) == 8.
7268 [Andy Polyakov <appro@fy.chalmers.se>]
7270 *) Change functions to ANSI C.
7273 *) Fix typos in error codes.
7274 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>, Ulf Möller]
7276 *) Remove defunct assembler files from Configure.
7279 *) SPARC v8 assembler BIGNUM implementation.
7280 [Andy Polyakov <appro@fy.chalmers.se>]
7282 *) Support for Certificate Policies extension: both print and set.
7283 Various additions to support the r2i method this uses.
7286 *) A lot of constification, and fix a bug in X509_NAME_oneline() that could
7287 return a const string when you are expecting an allocated buffer.
7290 *) Add support for ASN1 types UTF8String and VISIBLESTRING, also the CHOICE
7291 types DirectoryString and DisplayText.
7294 *) Add code to allow r2i extensions to access the configuration database,
7295 add an LHASH database driver and add several ctx helper functions.
7298 *) Fix an evil bug in bn_expand2() which caused various BN functions to
7299 fail when they extended the size of a BIGNUM.
7302 *) Various utility functions to handle SXNet extension. Modify mkdef.pl to
7303 support typesafe stack.
7306 *) Fix typo in SSL_[gs]et_options().
7307 [Nils Frostberg <nils@medcom.se>]
7309 *) Delete various functions and files that belonged to the (now obsolete)
7310 old X509V3 handling code.
7313 *) New Configure option "rsaref".
7316 *) Don't auto-generate pem.h.
7319 *) Introduce type-safe ASN.1 SETs.
7322 *) Convert various additional casted stacks to type-safe STACK_OF() variants.
7323 [Ben Laurie, Ralf S. Engelschall, Steve Henson]
7325 *) Introduce type-safe STACKs. This will almost certainly break lots of code
7326 that links with OpenSSL (well at least cause lots of warnings), but fear
7327 not: the conversion is trivial, and it eliminates loads of evil casts. A
7328 few STACKed things have been converted already. Feel free to convert more.
7329 In the fullness of time, I'll do away with the STACK type altogether.
7332 *) Add `openssl ca -revoke <certfile>' facility which revokes a certificate
7333 specified in <certfile> by updating the entry in the index.txt file.
7334 This way one no longer has to edit the index.txt file manually for
7335 revoking a certificate. The -revoke option does the gory details now.
7336 [Massimiliano Pala <madwolf@openca.org>, Ralf S. Engelschall]
7338 *) Fix `openssl crl -noout -text' combination where `-noout' killed the
7339 `-text' option at all and this way the `-noout -text' combination was
7340 inconsistent in `openssl crl' with the friends in `openssl x509|rsa|dsa'.
7341 [Ralf S. Engelschall]
7343 *) Make sure a corresponding plain text error message exists for the
7344 X509_V_ERR_CERT_REVOKED/23 error number which can occur when a
7345 verify callback function determined that a certificate was revoked.
7346 [Ralf S. Engelschall]
7348 *) Bugfix: In test/testenc, don't test "openssl <cipher>" for
7349 ciphers that were excluded, e.g. by -DNO_IDEA. Also, test
7350 all available cipers including rc5, which was forgotten until now.
7351 In order to let the testing shell script know which algorithms
7352 are available, a new (up to now undocumented) command
7353 "openssl list-cipher-commands" is used.
7356 *) Bugfix: s_client occasionally would sleep in select() when
7357 it should have checked SSL_pending() first.
7360 *) New functions DSA_do_sign and DSA_do_verify to provide access to
7361 the raw DSA values prior to ASN.1 encoding.
7364 *) Tweaks to Configure
7365 [Niels Poppe <niels@netbox.org>]
7367 *) Add support for PKCS#5 v2.0 ASN1 PBES2 structures. No other support,
7371 *) New variables $(RANLIB) and $(PERL) in the Makefiles.
7374 *) New config option to avoid instructions that are illegal on the 80386.
7375 The default code is faster, but requires at least a 486.
7378 *) Got rid of old SSL2_CLIENT_VERSION (inconsistently used) and
7379 SSL2_SERVER_VERSION (not used at all) macros, which are now the
7380 same as SSL2_VERSION anyway.
7383 *) New "-showcerts" option for s_client.
7386 *) Still more PKCS#12 integration. Add pkcs12 application to openssl
7387 application. Various cleanups and fixes.
7390 *) More PKCS#12 integration. Add new pkcs12 directory with Makefile.ssl and
7391 modify error routines to work internally. Add error codes and PBE init
7392 to library startup routines.
7395 *) Further PKCS#12 integration. Added password based encryption, PKCS#8 and
7396 packing functions to asn1 and evp. Changed function names and error
7397 codes along the way.
7400 *) PKCS12 integration: and so it begins... First of several patches to
7401 slowly integrate PKCS#12 functionality into OpenSSL. Add PKCS#12
7402 objects to objects.h
7405 *) Add a new 'indent' option to some X509V3 extension code. Initial ASN1
7406 and display support for Thawte strong extranet extension.
7409 *) Add LinuxPPC support.
7410 [Jeff Dubrule <igor@pobox.org>]
7412 *) Get rid of redundant BN file bn_mulw.c, and rename bn_div64 to
7413 bn_div_words in alpha.s.
7414 [Hannes Reinecke <H.Reinecke@hw.ac.uk> and Ben Laurie]
7416 *) Make sure the RSA OAEP test is skipped under -DRSAref because
7417 OAEP isn't supported when OpenSSL is built with RSAref.
7418 [Ulf Moeller <ulf@fitug.de>]
7420 *) Move definitions of IS_SET/IS_SEQUENCE inside crypto/asn1/asn1.h
7421 so they no longer are missing under -DNOPROTO.
7422 [Soren S. Jorvang <soren@t.dk>]
7425 Changes between 0.9.1c and 0.9.2b [22 Mar 1999]
7427 *) Make SSL_get_peer_cert_chain() work in servers. Unfortunately, it still
7428 doesn't work when the session is reused. Coming soon!
7431 *) Fix a security hole, that allows sessions to be reused in the wrong
7432 context thus bypassing client cert protection! All software that uses
7433 client certs and session caches in multiple contexts NEEDS PATCHING to
7434 allow session reuse! A fuller solution is in the works.
7435 [Ben Laurie, problem pointed out by Holger Reif, Bodo Moeller (and ???)]
7437 *) Some more source tree cleanups (removed obsolete files
7438 crypto/bf/asm/bf586.pl, test/test.txt and crypto/sha/asm/f.s; changed
7439 permission on "config" script to be executable) and a fix for the INSTALL
7441 [Ulf Moeller <ulf@fitug.de>]
7443 *) Remove some legacy and erroneous uses of malloc, free instead of
7445 [Lennart Bang <lob@netstream.se>, with minor changes by Steve]
7447 *) Make rsa_oaep_test return non-zero on error.
7448 [Ulf Moeller <ulf@fitug.de>]
7450 *) Add support for native Solaris shared libraries. Configure
7451 solaris-sparc-sc4-pic, make, then run shlib/solaris-sc4.sh. It'd be nice
7452 if someone would make that last step automatic.
7453 [Matthias Loepfe <Matthias.Loepfe@AdNovum.CH>]
7455 *) ctx_size was not built with the right compiler during "make links". Fixed.
7458 *) Change the meaning of 'ALL' in the cipher list. It now means "everything
7459 except NULL ciphers". This means the default cipher list will no longer
7460 enable NULL ciphers. They need to be specifically enabled e.g. with
7461 the string "DEFAULT:eNULL".
7464 *) Fix to RSA private encryption routines: if p < q then it would
7465 occasionally produce an invalid result. This will only happen with
7466 externally generated keys because OpenSSL (and SSLeay) ensure p > q.
7469 *) Be less restrictive and allow also `perl util/perlpath.pl
7470 /path/to/bin/perl' in addition to `perl util/perlpath.pl /path/to/bin',
7471 because this way one can also use an interpreter named `perl5' (which is
7472 usually the name of Perl 5.xxx on platforms where an Perl 4.x is still
7473 installed as `perl').
7474 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
7476 *) Let util/clean-depend.pl work also with older Perl 5.00x versions.
7477 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
7479 *) Fix Makefile.org so CC,CFLAG etc are passed to 'make links' add
7480 advapi32.lib to Win32 build and change the pem test comparision
7481 to fc.exe (thanks to Ulrich Kroener <kroneru@yahoo.com> for the
7482 suggestion). Fix misplaced ASNI prototypes and declarations in evp.h
7483 and crypto/des/ede_cbcm_enc.c.
7486 *) DES quad checksum was broken on big-endian architectures. Fixed.
7489 *) Comment out two functions in bio.h that aren't implemented. Fix up the
7490 Win32 test batch file so it (might) work again. The Win32 test batch file
7491 is horrible: I feel ill....
7494 *) Move various #ifdefs around so NO_SYSLOG, NO_DIRENT etc are now selected
7495 in e_os.h. Audit of header files to check ANSI and non ANSI
7496 sections: 10 functions were absent from non ANSI section and not exported
7497 from Windows DLLs. Fixed up libeay.num for new functions.
7500 *) Make `openssl version' output lines consistent.
7501 [Ralf S. Engelschall]
7503 *) Fix Win32 symbol export lists for BIO functions: Added
7504 BIO_get_ex_new_index, BIO_get_ex_num, BIO_get_ex_data and BIO_set_ex_data
7505 to ms/libeay{16,32}.def.
7506 [Ralf S. Engelschall]
7508 *) Second round of fixing the OpenSSL perl/ stuff. It now at least compiled
7509 fine under Unix and passes some trivial tests I've now added. But the
7510 whole stuff is horribly incomplete, so a README.1ST with a disclaimer was
7511 added to make sure no one expects that this stuff really works in the
7512 OpenSSL 0.9.2 release. Additionally I've started to clean the XS sources
7513 up and fixed a few little bugs and inconsistencies in OpenSSL.{pm,xs} and
7515 [Ralf S. Engelschall]
7517 *) Fix the generation of two part addresses in perl.
7518 [Kenji Miyake <kenji@miyake.org>, integrated by Ben Laurie]
7520 *) Add config entry for Linux on MIPS.
7521 [John Tobey <jtobey@channel1.com>]
7523 *) Make links whenever Configure is run, unless we are on Windoze.
7526 *) Permit extensions to be added to CRLs using crl_section in openssl.cnf.
7527 Currently only issuerAltName and AuthorityKeyIdentifier make any sense
7531 *) Add a useful kludge to allow package maintainers to specify compiler and
7532 other platforms details on the command line without having to patch the
7533 Configure script everytime: One now can use ``perl Configure
7534 <id>:<details>'', i.e. platform ids are allowed to have details appended
7535 to them (seperated by colons). This is treated as there would be a static
7536 pre-configured entry in Configure's %table under key <id> with value
7537 <details> and ``perl Configure <id>'' is called. So, when you want to
7538 perform a quick test-compile under FreeBSD 3.1 with pgcc and without
7539 assembler stuff you can use ``perl Configure "FreeBSD-elf:pgcc:-O6:::"''
7540 now, which overrides the FreeBSD-elf entry on-the-fly.
7541 [Ralf S. Engelschall]
7543 *) Disable new TLS1 ciphersuites by default: they aren't official yet.
7546 *) Allow DSO flags like -fpic, -fPIC, -KPIC etc. to be specified
7547 on the `perl Configure ...' command line. This way one can compile
7548 OpenSSL libraries with Position Independent Code (PIC) which is needed
7549 for linking it into DSOs.
7550 [Ralf S. Engelschall]
7552 *) Remarkably, export ciphers were totally broken and no-one had noticed!
7556 *) Cleaned up the LICENSE document: The official contact for any license
7557 questions now is the OpenSSL core team under openssl-core@openssl.org.
7558 And add a paragraph about the dual-license situation to make sure people
7559 recognize that _BOTH_ the OpenSSL license _AND_ the SSLeay license apply
7560 to the OpenSSL toolkit.
7561 [Ralf S. Engelschall]
7563 *) General source tree makefile cleanups: Made `making xxx in yyy...'
7564 display consistent in the source tree and replaced `/bin/rm' by `rm'.
7565 Additonally cleaned up the `make links' target: Remove unnecessary
7566 semicolons, subsequent redundant removes, inline point.sh into mklink.sh
7567 to speed processing and no longer clutter the display with confusing
7568 stuff. Instead only the actually done links are displayed.
7569 [Ralf S. Engelschall]
7571 *) Permit null encryption ciphersuites, used for authentication only. It used
7572 to be necessary to set the preprocessor define SSL_ALLOW_ENULL to do this.
7573 It is now necessary to set SSL_FORBID_ENULL to prevent the use of null
7577 *) Add a bunch of fixes to the PKCS#7 stuff. It used to sometimes reorder
7578 signed attributes when verifying signatures (this would break them),
7579 the detached data encoding was wrong and public keys obtained using
7580 X509_get_pubkey() weren't freed.
7583 *) Add text documentation for the BUFFER functions. Also added a work around
7584 to a Win95 console bug. This was triggered by the password read stuff: the
7585 last character typed gets carried over to the next fread(). If you were
7586 generating a new cert request using 'req' for example then the last
7587 character of the passphrase would be CR which would then enter the first
7591 *) Added the new `Includes OpenSSL Cryptography Software' button as
7592 doc/openssl_button.{gif,html} which is similar in style to the old SSLeay
7593 button and can be used by applications based on OpenSSL to show the
7594 relationship to the OpenSSL project.
7595 [Ralf S. Engelschall]
7597 *) Remove confusing variables in function signatures in files
7598 ssl/ssl_lib.c and ssl/ssl.h.
7599 [Lennart Bong <lob@kulthea.stacken.kth.se>]
7601 *) Don't install bss_file.c under PREFIX/include/
7602 [Lennart Bong <lob@kulthea.stacken.kth.se>]
7604 *) Get the Win32 compile working again. Modify mkdef.pl so it can handle
7605 functions that return function pointers and has support for NT specific
7606 stuff. Fix mk1mf.pl and VC-32.pl to support NT differences also. Various
7607 #ifdef WIN32 and WINNTs sprinkled about the place and some changes from
7608 unsigned to signed types: this was killing the Win32 compile.
7611 *) Add new certificate file to stack functions,
7612 SSL_add_dir_cert_subjects_to_stack() and
7613 SSL_add_file_cert_subjects_to_stack(). These largely supplant
7614 SSL_load_client_CA_file(), and can be used to add multiple certs easily
7615 to a stack (usually this is then handed to SSL_CTX_set_client_CA_list()).
7616 This means that Apache-SSL and similar packages don't have to mess around
7617 to add as many CAs as they want to the preferred list.
7620 *) Experiment with doxygen documentation. Currently only partially applied to
7622 See http://www.stack.nl/~dimitri/doxygen/index.html, and run doxygen with
7623 openssl.doxy as the configuration file.
7626 *) Get rid of remaining C++-style comments which strict C compilers hate.
7627 [Ralf S. Engelschall, pointed out by Carlos Amengual]
7629 *) Changed BN_RECURSION in bn_mont.c to BN_RECURSION_MONT so it is not
7630 compiled in by default: it has problems with large keys.
7633 *) Add a bunch of SSL_xxx() functions for configuring the temporary RSA and
7634 DH private keys and/or callback functions which directly correspond to
7635 their SSL_CTX_xxx() counterparts but work on a per-connection basis. This
7636 is needed for applications which have to configure certificates on a
7637 per-connection basis (e.g. Apache+mod_ssl) instead of a per-context basis
7639 For the RSA certificate situation is makes no difference, but
7640 for the DSA certificate situation this fixes the "no shared cipher"
7641 problem where the OpenSSL cipher selection procedure failed because the
7642 temporary keys were not overtaken from the context and the API provided
7643 no way to reconfigure them.
7644 The new functions now let applications reconfigure the stuff and they
7645 are in detail: SSL_need_tmp_RSA, SSL_set_tmp_rsa, SSL_set_tmp_dh,
7646 SSL_set_tmp_rsa_callback and SSL_set_tmp_dh_callback. Additionally a new
7647 non-public-API function ssl_cert_instantiate() is used as a helper
7648 function and also to reduce code redundancy inside ssl_rsa.c.
7649 [Ralf S. Engelschall]
7651 *) Move s_server -dcert and -dkey options out of the undocumented feature
7652 area because they are useful for the DSA situation and should be
7653 recognized by the users.
7654 [Ralf S. Engelschall]
7656 *) Fix the cipher decision scheme for export ciphers: the export bits are
7657 *not* within SSL_MKEY_MASK or SSL_AUTH_MASK, they are within
7658 SSL_EXP_MASK. So, the original variable has to be used instead of the
7659 already masked variable.
7660 [Richard Levitte <levitte@stacken.kth.se>]
7662 *) Fix 'port' variable from `int' to `unsigned int' in crypto/bio/b_sock.c
7663 [Richard Levitte <levitte@stacken.kth.se>]
7665 *) Change type of another md_len variable in pk7_doit.c:PKCS7_dataFinal()
7666 from `int' to `unsigned int' because it's a length and initialized by
7667 EVP_DigestFinal() which expects an `unsigned int *'.
7668 [Richard Levitte <levitte@stacken.kth.se>]
7670 *) Don't hard-code path to Perl interpreter on shebang line of Configure
7671 script. Instead use the usual Shell->Perl transition trick.
7672 [Ralf S. Engelschall]
7674 *) Make `openssl x509 -noout -modulus' functional also for DSA certificates
7675 (in addition to RSA certificates) to match the behaviour of `openssl dsa
7676 -noout -modulus' as it's already the case for `openssl rsa -noout
7677 -modulus'. For RSA the -modulus is the real "modulus" while for DSA
7678 currently the public key is printed (a decision which was already done by
7679 `openssl dsa -modulus' in the past) which serves a similar purpose.
7680 Additionally the NO_RSA no longer completely removes the whole -modulus
7681 option; it now only avoids using the RSA stuff. Same applies to NO_DSA
7683 [Ralf S. Engelschall]
7685 *) Add Arne Ansper's reliable BIO - this is an encrypted, block-digested
7686 BIO. See the source (crypto/evp/bio_ok.c) for more info.
7687 [Arne Ansper <arne@ats.cyber.ee>]
7689 *) Dump the old yucky req code that tried (and failed) to allow raw OIDs
7690 to be added. Now both 'req' and 'ca' can use new objects defined in the
7694 *) Add cool BIO that does syslog (or event log on NT).
7695 [Arne Ansper <arne@ats.cyber.ee>, integrated by Ben Laurie]
7697 *) Add support for new TLS ciphersuites, TLS_RSA_EXPORT56_WITH_RC4_56_MD5,
7698 TLS_RSA_EXPORT56_WITH_RC2_CBC_56_MD5 and
7699 TLS_RSA_EXPORT56_WITH_DES_CBC_SHA, as specified in "56-bit Export Cipher
7700 Suites For TLS", draft-ietf-tls-56-bit-ciphersuites-00.txt.
7703 *) Add preliminary config info for new extension code.
7706 *) Make RSA_NO_PADDING really use no padding.
7707 [Ulf Moeller <ulf@fitug.de>]
7709 *) Generate errors when private/public key check is done.
7712 *) Overhaul for 'crl' utility. New function X509_CRL_print. Partial support
7713 for some CRL extensions and new objects added.
7716 *) Really fix the ASN1 IMPLICIT bug this time... Partial support for private
7717 key usage extension and fuller support for authority key id.
7720 *) Add OAEP encryption for the OpenSSL crypto library. OAEP is the improved
7721 padding method for RSA, which is recommended for new applications in PKCS
7722 #1 v2.0 (RFC 2437, October 1998).
7723 OAEP (Optimal Asymmetric Encryption Padding) has better theoretical
7724 foundations than the ad-hoc padding used in PKCS #1 v1.5. It is secure
7725 against Bleichbacher's attack on RSA.
7726 [Ulf Moeller <ulf@fitug.de>, reformatted, corrected and integrated by
7729 *) Updates to the new SSL compression code
7730 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
7732 *) Fix so that the version number in the master secret, when passed
7733 via RSA, checks that if TLS was proposed, but we roll back to SSLv3
7734 (because the server will not accept higher), that the version number
7735 is 0x03,0x01, not 0x03,0x00
7736 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
7738 *) Run extensive memory leak checks on SSL apps. Fixed *lots* of memory
7739 leaks in ssl/ relating to new X509_get_pubkey() behaviour. Also fixes
7740 in apps/ and an unrelated leak in crypto/dsa/dsa_vrf.c
7743 *) Support for RAW extensions where an arbitrary extension can be
7744 created by including its DER encoding. See apps/openssl.cnf for
7748 *) Make sure latest Perl versions don't interpret some generated C array
7749 code as Perl array code in the crypto/err/err_genc.pl script.
7750 [Lars Weber <3weber@informatik.uni-hamburg.de>]
7752 *) Modify ms/do_ms.bat to not generate assembly language makefiles since
7753 not many people have the assembler. Various Win32 compilation fixes and
7754 update to the INSTALL.W32 file with (hopefully) more accurate Win32
7758 *) Modify configure script 'Configure' to automatically create crypto/date.h
7759 file under Win32 and also build pem.h from pem.org. New script
7760 util/mkfiles.pl to create the MINFO file on environments that can't do a
7761 'make files': perl util/mkfiles.pl >MINFO should work.
7764 *) Major rework of DES function declarations, in the pursuit of correctness
7765 and purity. As a result, many evil casts evaporated, and some weirdness,
7766 too. You may find this causes warnings in your code. Zapping your evil
7767 casts will probably fix them. Mostly.
7770 *) Fix for a typo in asn1.h. Bug fix to object creation script
7771 obj_dat.pl. It considered a zero in an object definition to mean
7772 "end of object": none of the objects in objects.h have any zeros
7773 so it wasn't spotted.
7774 [Steve Henson, reported by Erwann ABALEA <eabalea@certplus.com>]
7776 *) Add support for Triple DES Cipher Block Chaining with Output Feedback
7777 Masking (CBCM). In the absence of test vectors, the best I have been able
7778 to do is check that the decrypt undoes the encrypt, so far. Send me test
7779 vectors if you have them.
7782 *) Correct calculation of key length for export ciphers (too much space was
7783 allocated for null ciphers). This has not been tested!
7786 *) Modifications to the mkdef.pl for Win32 DEF file creation. The usage
7787 message is now correct (it understands "crypto" and "ssl" on its
7788 command line). There is also now an "update" option. This will update
7789 the util/ssleay.num and util/libeay.num files with any new functions.
7791 perl util/mkdef.pl crypto ssl update
7792 it will update them.
7795 *) Overhauled the Perl interface (perl/*):
7796 - ported BN stuff to OpenSSL's different BN library
7797 - made the perl/ source tree CVS-aware
7798 - renamed the package from SSLeay to OpenSSL (the files still contain
7799 their history because I've copied them in the repository)
7800 - removed obsolete files (the test scripts will be replaced
7801 by better Test::Harness variants in the future)
7802 [Ralf S. Engelschall]
7804 *) First cut for a very conservative source tree cleanup:
7805 1. merge various obsolete readme texts into doc/ssleay.txt
7806 where we collect the old documents and readme texts.
7807 2. remove the first part of files where I'm already sure that we no
7808 longer need them because of three reasons: either they are just temporary
7809 files which were left by Eric or they are preserved original files where
7810 I've verified that the diff is also available in the CVS via "cvs diff
7811 -rSSLeay_0_8_1b" or they were renamed (as it was definitely the case for
7812 the crypto/md/ stuff).
7813 [Ralf S. Engelschall]
7815 *) More extension code. Incomplete support for subject and issuer alt
7816 name, issuer and authority key id. Change the i2v function parameters
7817 and add an extra 'crl' parameter in the X509V3_CTX structure: guess
7818 what that's for :-) Fix to ASN1 macro which messed up
7819 IMPLICIT tag and add f_enum.c which adds a2i, i2a for ENUMERATED.
7822 *) Preliminary support for ENUMERATED type. This is largely copied from the
7826 *) Add new function, EVP_MD_CTX_copy() to replace frequent use of memcpy.
7827 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
7829 *) Make sure `make rehash' target really finds the `openssl' program.
7830 [Ralf S. Engelschall, Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
7832 *) Squeeze another 7% of speed out of MD5 assembler, at least on a P2. I'd
7833 like to hear about it if this slows down other processors.
7836 *) Add CygWin32 platform information to Configure script.
7837 [Alan Batie <batie@aahz.jf.intel.com>]
7839 *) Fixed ms/32all.bat script: `no_asm' -> `no-asm'
7840 [Rainer W. Gerling <gerling@mpg-gv.mpg.de>]
7842 *) New program nseq to manipulate netscape certificate sequences
7845 *) Modify crl2pkcs7 so it supports multiple -certfile arguments. Fix a
7849 *) Fixes to BN code. Previously the default was to define BN_RECURSION
7850 but the BN code had some problems that would cause failures when
7851 doing certificate verification and some other functions.
7852 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
7854 *) Add ASN1 and PEM code to support netscape certificate sequences.
7857 *) Add ASN1 and PEM code to support netscape certificate sequences.
7860 *) Add several PKIX and private extended key usage OIDs.
7863 *) Modify the 'ca' program to handle the new extension code. Modify
7864 openssl.cnf for new extension format, add comments.
7867 *) More X509 V3 changes. Fix typo in v3_bitstr.c. Add support to 'req'
7868 and add a sample to openssl.cnf so req -x509 now adds appropriate
7872 *) Continued X509 V3 changes. Add to other makefiles, integrate with the
7873 error code, add initial support to X509_print() and x509 application.
7876 *) Takes a deep breath and start addding X509 V3 extension support code. Add
7877 files in crypto/x509v3. Move original stuff to crypto/x509v3/old. All this
7878 stuff is currently isolated and isn't even compiled yet.
7881 *) Continuing patches for GeneralizedTime. Fix up certificate and CRL
7882 ASN1 to use ASN1_TIME and modify print routines to use ASN1_TIME_print.
7883 Removed the versions check from X509 routines when loading extensions:
7884 this allows certain broken certificates that don't set the version
7885 properly to be processed.
7888 *) Deal with irritating shit to do with dependencies, in YAAHW (Yet Another
7889 Ad Hoc Way) - Makefile.ssls now all contain local dependencies, which
7890 can still be regenerated with "make depend".
7893 *) Spelling mistake in C version of CAST-128.
7894 [Ben Laurie, reported by Jeremy Hylton <jeremy@cnri.reston.va.us>]
7896 *) Changes to the error generation code. The perl script err-code.pl
7897 now reads in the old error codes and retains the old numbers, only
7898 adding new ones if necessary. It also only changes the .err files if new
7899 codes are added. The makefiles have been modified to only insert errors
7900 when needed (to avoid needlessly modifying header files). This is done
7901 by only inserting errors if the .err file is newer than the auto generated
7902 C file. To rebuild all the error codes from scratch (the old behaviour)
7903 either modify crypto/Makefile.ssl to pass the -regen flag to err_code.pl
7904 or delete all the .err files.
7907 *) CAST-128 was incorrectly implemented for short keys. The C version has
7908 been fixed, but is untested. The assembler versions are also fixed, but
7909 new assembler HAS NOT BEEN GENERATED FOR WIN32 - the Makefile needs fixing
7910 to regenerate it if needed.
7911 [Ben Laurie, reported (with fix for C version) by Jun-ichiro itojun
7912 Hagino <itojun@kame.net>]
7914 *) File was opened incorrectly in randfile.c.
7915 [Ulf Möller <ulf@fitug.de>]
7917 *) Beginning of support for GeneralizedTime. d2i, i2d, check and print
7918 functions. Also ASN1_TIME suite which is a CHOICE of UTCTime or
7919 GeneralizedTime. ASN1_TIME is the proper type used in certificates et
7920 al: it's just almost always a UTCTime. Note this patch adds new error
7921 codes so do a "make errors" if there are problems.
7924 *) Correct Linux 1 recognition in config.
7925 [Ulf Möller <ulf@fitug.de>]
7927 *) Remove pointless MD5 hash when using DSA keys in ca.
7928 [Anonymous <nobody@replay.com>]
7930 *) Generate an error if given an empty string as a cert directory. Also
7931 generate an error if handed NULL (previously returned 0 to indicate an
7932 error, but didn't set one).
7933 [Ben Laurie, reported by Anonymous <nobody@replay.com>]
7935 *) Add prototypes to SSL methods. Make SSL_write's buffer const, at last.
7938 *) Fix the dummy function BN_ref_mod_exp() in rsaref.c to have the correct
7939 parameters. This was causing a warning which killed off the Win32 compile.
7942 *) Remove C++ style comments from crypto/bn/bn_local.h.
7943 [Neil Costigan <neil.costigan@celocom.com>]
7945 *) The function OBJ_txt2nid was broken. It was supposed to return a nid
7946 based on a text string, looking up short and long names and finally
7947 "dot" format. The "dot" format stuff didn't work. Added new function
7948 OBJ_txt2obj to do the same but return an ASN1_OBJECT and rewrote
7949 OBJ_txt2nid to use it. OBJ_txt2obj can also return objects even if the
7950 OID is not part of the table.
7953 *) Add prototypes to X509 lookup/verify methods, fixing a bug in
7954 X509_LOOKUP_by_alias().
7957 *) Sort openssl functions by name.
7960 *) Get the gendsa program working (hopefully) and add it to app list. Remove
7961 encryption from sample DSA keys (in case anyone is interested the password
7965 *) Make _all_ *_free functions accept a NULL pointer.
7966 [Frans Heymans <fheymans@isaserver.be>]
7968 *) If a DH key is generated in s3_srvr.c, don't blow it by trying to use
7970 [Anonymous <nobody@replay.com>]
7972 *) s_server should send the CAfile as acceptable CAs, not its own cert.
7973 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
7975 *) Don't blow it for numeric -newkey arguments to apps/req.
7976 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
7978 *) Temp key "for export" tests were wrong in s3_srvr.c.
7979 [Anonymous <nobody@replay.com>]
7981 *) Add prototype for temp key callback functions
7982 SSL_CTX_set_tmp_{rsa,dh}_callback().
7985 *) Make DH_free() tolerate being passed a NULL pointer (like RSA_free() and
7986 DSA_free()). Make X509_PUBKEY_set() check for errors in d2i_PublicKey().
7989 *) X509_name_add_entry() freed the wrong thing after an error.
7990 [Arne Ansper <arne@ats.cyber.ee>]
7992 *) rsa_eay.c would attempt to free a NULL context.
7993 [Arne Ansper <arne@ats.cyber.ee>]
7995 *) BIO_s_socket() had a broken should_retry() on Windoze.
7996 [Arne Ansper <arne@ats.cyber.ee>]
7998 *) BIO_f_buffer() didn't pass on BIO_CTRL_FLUSH.
7999 [Arne Ansper <arne@ats.cyber.ee>]
8001 *) Make sure the already existing X509_STORE->depth variable is initialized
8002 in X509_STORE_new(), but document the fact that this variable is still
8003 unused in the certificate verification process.
8004 [Ralf S. Engelschall]
8006 *) Fix the various library and apps files to free up pkeys obtained from
8007 X509_PUBKEY_get() et al. Also allow x509.c to handle netscape extensions.
8010 *) Fix reference counting in X509_PUBKEY_get(). This makes
8011 demos/maurice/example2.c work, amongst others, probably.
8012 [Steve Henson and Ben Laurie]
8014 *) First cut of a cleanup for apps/. First the `ssleay' program is now named
8015 `openssl' and second, the shortcut symlinks for the `openssl <command>'
8016 are no longer created. This way we have a single and consistent command
8017 line interface `openssl <command>', similar to `cvs <command>'.
8018 [Ralf S. Engelschall, Paul Sutton and Ben Laurie]
8020 *) ca.c: move test for DSA keys inside #ifndef NO_DSA. Make pubkey
8021 BIT STRING wrapper always have zero unused bits.
8024 *) Add CA.pl, perl version of CA.sh, add extended key usage OID.
8027 *) Make the top-level INSTALL documentation easier to understand.
8030 *) Makefiles updated to exit if an error occurs in a sub-directory
8031 make (including if user presses ^C) [Paul Sutton]
8033 *) Make Montgomery context stuff explicit in RSA data structure.
8036 *) Fix build order of pem and err to allow for generated pem.h.
8039 *) Fix renumbering bug in X509_NAME_delete_entry().
8042 *) Enhanced the err-ins.pl script so it makes the error library number
8043 global and can add a library name. This is needed for external ASN1 and
8044 other error libraries.
8047 *) Fixed sk_insert which never worked properly.
8050 *) Fix ASN1 macros so they can handle indefinite length construted
8051 EXPLICIT tags. Some non standard certificates use these: they can now
8055 *) Merged the various old/obsolete SSLeay documentation files (doc/xxx.doc)
8056 into a single doc/ssleay.txt bundle. This way the information is still
8057 preserved but no longer messes up this directory. Now it's new room for
8058 the new set of documenation files.
8059 [Ralf S. Engelschall]
8061 *) SETs were incorrectly DER encoded. This was a major pain, because they
8062 shared code with SEQUENCEs, which aren't coded the same. This means that
8063 almost everything to do with SETs or SEQUENCEs has either changed name or
8064 number of arguments.
8065 [Ben Laurie, based on a partial fix by GP Jayan <gp@nsj.co.jp>]
8067 *) Fix test data to work with the above.
8070 *) Fix the RSA header declarations that hid a bug I fixed in 0.9.0b but
8071 was already fixed by Eric for 0.9.1 it seems.
8072 [Ben Laurie - pointed out by Ulf Möller <ulf@fitug.de>]
8074 *) Autodetect FreeBSD3.
8077 *) Fix various bugs in Configure. This affects the following platforms:
8081 unixware-2.0-pentium
8085 *) Eliminate generated files from CVS. Reorder tests to regenerate files
8086 before they are needed.
8089 *) Generate Makefile.ssl from Makefile.org (to keep CVS happy).
8093 Changes between 0.9.1b and 0.9.1c [23-Dec-1998]
8095 *) Added OPENSSL_VERSION_NUMBER to crypto/crypto.h and
8096 changed SSLeay to OpenSSL in version strings.
8097 [Ralf S. Engelschall]
8099 *) Some fixups to the top-level documents.
8102 *) Fixed the nasty bug where rsaref.h was not found under compile-time
8103 because the symlink to include/ was missing.
8104 [Ralf S. Engelschall]
8106 *) Incorporated the popular no-RSA/DSA-only patches
8107 which allow to compile a RSA-free SSLeay.
8108 [Andrew Cooke / Interrader Ldt., Ralf S. Engelschall]
8110 *) Fixed nasty rehash problem under `make -f Makefile.ssl links'
8111 when "ssleay" is still not found.
8112 [Ralf S. Engelschall]
8114 *) Added more platforms to Configure: Cray T3E, HPUX 11,
8115 [Ralf S. Engelschall, Beckmann <beckman@acl.lanl.gov>]
8117 *) Updated the README file.
8118 [Ralf S. Engelschall]
8120 *) Added various .cvsignore files in the CVS repository subdirs
8121 to make a "cvs update" really silent.
8122 [Ralf S. Engelschall]
8124 *) Recompiled the error-definition header files and added
8125 missing symbols to the Win32 linker tables.
8126 [Ralf S. Engelschall]
8128 *) Cleaned up the top-level documents;
8129 o new files: CHANGES and LICENSE
8130 o merged VERSION, HISTORY* and README* files a CHANGES.SSLeay
8131 o merged COPYRIGHT into LICENSE
8132 o removed obsolete TODO file
8133 o renamed MICROSOFT to INSTALL.W32
8134 [Ralf S. Engelschall]
8136 *) Removed dummy files from the 0.9.1b source tree:
8137 crypto/asn1/x crypto/bio/cd crypto/bio/fg crypto/bio/grep crypto/bio/vi
8138 crypto/bn/asm/......add.c crypto/bn/asm/a.out crypto/dsa/f crypto/md5/f
8139 crypto/pem/gmon.out crypto/perlasm/f crypto/pkcs7/build crypto/rsa/f
8140 crypto/sha/asm/f crypto/threads/f ms/zzz ssl/f ssl/f.mak test/f
8141 util/f.mak util/pl/f util/pl/f.mak crypto/bf/bf_locl.old apps/f
8142 [Ralf S. Engelschall]
8144 *) Added various platform portability fixes.
8147 *) The Genesis of the OpenSSL rpject:
8148 We start with the latest (unreleased) SSLeay version 0.9.1b which Eric A.
8149 Young and Tim J. Hudson created while they were working for C2Net until
8151 [The OpenSSL Project]
8154 Changes between 0.9.0b and 0.9.1b [not released]
8156 *) Updated a few CA certificates under certs/
8159 *) Changed some BIGNUM api stuff.
8162 *) Various platform ports: OpenBSD, Ultrix, IRIX 64bit, NetBSD,
8163 DGUX x86, Linux Alpha, etc.
8166 *) New COMP library [crypto/comp/] for SSL Record Layer Compression:
8167 RLE (dummy implemented) and ZLIB (really implemented when ZLIB is
8171 *) Add -strparse option to asn1pars program which parses nested
8173 [Dr Stephen Henson <shenson@bigfoot.com>]
8175 *) Added "oid_file" to ssleay.cnf for "ca" and "req" programs.
8178 *) DSA fix for "ca" program.
8181 *) Added "-genkey" option to "dsaparam" program.
8184 *) Added RIPE MD160 (rmd160) message digest.
8187 *) Added -a (all) option to "ssleay version" command.
8190 *) Added PLATFORM define which is the id given to Configure.
8193 *) Added MemCheck_XXXX functions to crypto/mem.c for memory checking.
8196 *) Extended the ASN.1 parser routines.
8199 *) Extended BIO routines to support REUSEADDR, seek, tell, etc.
8202 *) Added a BN_CTX to the BN library.
8205 *) Fixed the weak key values in DES library
8208 *) Changed API in EVP library for cipher aliases.
8211 *) Added support for RC2/64bit cipher.
8214 *) Converted the lhash library to the crypto/mem.c functions.
8217 *) Added more recognized ASN.1 object ids.
8220 *) Added more RSA padding checks for SSL/TLS.
8223 *) Added BIO proxy/filter functionality.
8226 *) Added extra_certs to SSL_CTX which can be used
8227 send extra CA certificates to the client in the CA cert chain sending
8228 process. It can be configured with SSL_CTX_add_extra_chain_cert().
8231 *) Now Fortezza is denied in the authentication phase because
8232 this is key exchange mechanism is not supported by SSLeay at all.
8235 *) Additional PKCS1 checks.
8238 *) Support the string "TLSv1" for all TLS v1 ciphers.
8241 *) Added function SSL_get_ex_data_X509_STORE_CTX_idx() which gives the
8242 ex_data index of the SSL context in the X509_STORE_CTX ex_data.
8245 *) Fixed a few memory leaks.
8248 *) Fixed various code and comment typos.
8251 *) A minor bug in ssl/s3_clnt.c where there would always be 4 0
8252 bytes sent in the client random.
8253 [Edward Bishop <ebishop@spyglass.com>]