5 This file gives a brief overview of the major changes between each OpenSSL
6 release. For more details please read the CHANGES file.
8 Major changes between OpenSSL 1.0.1g and OpenSSL 1.0.2 [in beta]:
10 o Suite B support for TLS 1.2 and DTLS 1.2
11 o Support for DTLS 1.2
12 o TLS automatic EC curve selection.
13 o API to set TLS supported signature algorithms and curves
14 o SSL_CONF configuration API.
15 o TLS Brainpool support.
17 o CMS support for RSA-PSS, RSA-OAEP, ECDH and X9.42 DH.
19 Major changes between OpenSSL 1.0.1f and OpenSSL 1.0.1g [7 Apr 2014]
21 o Fix for CVE-2014-0160
22 o Add TLS padding extension workaround for broken servers.
23 o Fix for CVE-2014-0076
25 Major changes between OpenSSL 1.0.1e and OpenSSL 1.0.1f [6 Jan 2014]
27 o Don't include gmt_unix_time in TLS server and client random values
28 o Fix for TLS record tampering bug CVE-2013-4353
29 o Fix for TLS version checking bug CVE-2013-6449
30 o Fix for DTLS retransmission bug CVE-2013-6450
32 Major changes between OpenSSL 1.0.1d and OpenSSL 1.0.1e [11 Feb 2013]:
34 o Corrected fix for CVE-2013-0169
36 Major changes between OpenSSL 1.0.1c and OpenSSL 1.0.1d [4 Feb 2013]:
38 o Fix renegotiation in TLS 1.1, 1.2 by using the correct TLS version.
39 o Include the fips configuration module.
40 o Fix OCSP bad key DoS attack CVE-2013-0166
41 o Fix for SSL/TLS/DTLS CBC plaintext recovery attack CVE-2013-0169
42 o Fix for TLS AESNI record handling flaw CVE-2012-2686
44 Major changes between OpenSSL 1.0.1b and OpenSSL 1.0.1c [10 May 2012]:
46 o Fix TLS/DTLS record length checking bug CVE-2012-2333
47 o Don't attempt to use non-FIPS composite ciphers in FIPS mode.
49 Major changes between OpenSSL 1.0.1a and OpenSSL 1.0.1b [26 Apr 2012]:
51 o Fix compilation error on non-x86 platforms.
52 o Make FIPS capable OpenSSL ciphers work in non-FIPS mode.
53 o Fix SSL_OP_NO_TLSv1_1 clash with SSL_OP_ALL in OpenSSL 1.0.0
55 Major changes between OpenSSL 1.0.1 and OpenSSL 1.0.1a [19 Apr 2012]:
57 o Fix for ASN1 overflow bug CVE-2012-2110
58 o Workarounds for some servers that hang on long client hellos.
59 o Fix SEGV in AES code.
61 Major changes between OpenSSL 1.0.0h and OpenSSL 1.0.1 [14 Mar 2012]:
63 o TLS/DTLS heartbeat support.
65 o RFC 5705 TLS key material exporter.
66 o RFC 5764 DTLS-SRTP negotiation.
67 o Next Protocol Negotiation.
68 o PSS signatures in certificates, requests and CRLs.
69 o Support for password based recipient info for CMS.
70 o Support TLS v1.2 and TLS v1.1.
71 o Preliminary FIPS capability for unvalidated 2.0 FIPS module.
74 Major changes between OpenSSL 1.0.0j and OpenSSL 1.0.0k [5 Feb 2013]:
76 o Fix for SSL/TLS/DTLS CBC plaintext recovery attack CVE-2013-0169
77 o Fix OCSP bad key DoS attack CVE-2013-0166
79 Major changes between OpenSSL 1.0.0i and OpenSSL 1.0.0j [10 May 2012]:
81 o Fix DTLS record length checking bug CVE-2012-2333
83 Major changes between OpenSSL 1.0.0h and OpenSSL 1.0.0i [19 Apr 2012]:
85 o Fix for ASN1 overflow bug CVE-2012-2110
87 Major changes between OpenSSL 1.0.0g and OpenSSL 1.0.0h [12 Mar 2012]:
89 o Fix for CMS/PKCS#7 MMA CVE-2012-0884
90 o Corrected fix for CVE-2011-4619
93 Major changes between OpenSSL 1.0.0f and OpenSSL 1.0.0g [18 Jan 2012]:
95 o Fix for DTLS DoS issue CVE-2012-0050
97 Major changes between OpenSSL 1.0.0e and OpenSSL 1.0.0f [4 Jan 2012]:
99 o Fix for DTLS plaintext recovery attack CVE-2011-4108
100 o Clear block padding bytes of SSL 3.0 records CVE-2011-4576
101 o Only allow one SGC handshake restart for SSL/TLS CVE-2011-4619
102 o Check parameters are not NULL in GOST ENGINE CVE-2012-0027
103 o Check for malformed RFC3779 data CVE-2011-4577
105 Major changes between OpenSSL 1.0.0d and OpenSSL 1.0.0e [6 Sep 2011]:
107 o Fix for CRL vulnerability issue CVE-2011-3207
108 o Fix for ECDH crashes CVE-2011-3210
109 o Protection against EC timing attacks.
110 o Support ECDH ciphersuites for certificates using SHA2 algorithms.
111 o Various DTLS fixes.
113 Major changes between OpenSSL 1.0.0c and OpenSSL 1.0.0d [8 Feb 2011]:
115 o Fix for security issue CVE-2011-0014
117 Major changes between OpenSSL 1.0.0b and OpenSSL 1.0.0c [2 Dec 2010]:
119 o Fix for security issue CVE-2010-4180
120 o Fix for CVE-2010-4252
121 o Fix mishandling of absent EC point format extension.
122 o Fix various platform compilation issues.
123 o Corrected fix for security issue CVE-2010-3864.
125 Major changes between OpenSSL 1.0.0a and OpenSSL 1.0.0b [16 Nov 2010]:
127 o Fix for security issue CVE-2010-3864.
128 o Fix for CVE-2010-2939
129 o Fix WIN32 build system for GOST ENGINE.
131 Major changes between OpenSSL 1.0.0 and OpenSSL 1.0.0a [1 Jun 2010]:
133 o Fix for security issue CVE-2010-1633.
134 o GOST MAC and CFB fixes.
136 Major changes between OpenSSL 0.9.8n and OpenSSL 1.0.0 [29 Mar 2010]:
138 o RFC3280 path validation: sufficient to process PKITS tests.
139 o Integrated support for PVK files and keyblobs.
140 o Change default private key format to PKCS#8.
141 o CMS support: able to process all examples in RFC4134
142 o Streaming ASN1 encode support for PKCS#7 and CMS.
143 o Multiple signer and signer add support for PKCS#7 and CMS.
144 o ASN1 printing support.
145 o Whirlpool hash algorithm added.
146 o RFC3161 time stamp support.
147 o New generalised public key API supporting ENGINE based algorithms.
148 o New generalised public key API utilities.
149 o New ENGINE supporting GOST algorithms.
150 o SSL/TLS GOST ciphersuite support.
151 o PKCS#7 and CMS GOST support.
152 o RFC4279 PSK ciphersuite support.
153 o Supported points format extension for ECC ciphersuites.
154 o ecdsa-with-SHA224/256/384/512 signature types.
155 o dsa-with-SHA224 and dsa-with-SHA256 signature types.
156 o Opaque PRF Input TLS extension support.
157 o Updated time routines to avoid OS limitations.
159 Major changes between OpenSSL 0.9.8x and OpenSSL 0.9.8y [5 Feb 2013]:
161 o Fix for SSL/TLS/DTLS CBC plaintext recovery attack CVE-2013-0169
162 o Fix OCSP bad key DoS attack CVE-2013-0166
164 Major changes between OpenSSL 0.9.8w and OpenSSL 0.9.8x [10 May 2012]:
166 o Fix DTLS record length checking bug CVE-2012-2333
168 Major changes between OpenSSL 0.9.8v and OpenSSL 0.9.8w [23 Apr 2012]:
170 o Fix for CVE-2012-2131 (corrected fix for 0.9.8 and CVE-2012-2110)
172 Major changes between OpenSSL 0.9.8u and OpenSSL 0.9.8v [19 Apr 2012]:
174 o Fix for ASN1 overflow bug CVE-2012-2110
176 Major changes between OpenSSL 0.9.8t and OpenSSL 0.9.8u [12 Mar 2012]:
178 o Fix for CMS/PKCS#7 MMA CVE-2012-0884
179 o Corrected fix for CVE-2011-4619
180 o Various DTLS fixes.
182 Major changes between OpenSSL 0.9.8s and OpenSSL 0.9.8t [18 Jan 2012]:
184 o Fix for DTLS DoS issue CVE-2012-0050
186 Major changes between OpenSSL 0.9.8r and OpenSSL 0.9.8s [4 Jan 2012]:
188 o Fix for DTLS plaintext recovery attack CVE-2011-4108
189 o Fix policy check double free error CVE-2011-4109
190 o Clear block padding bytes of SSL 3.0 records CVE-2011-4576
191 o Only allow one SGC handshake restart for SSL/TLS CVE-2011-4619
192 o Check for malformed RFC3779 data CVE-2011-4577
194 Major changes between OpenSSL 0.9.8q and OpenSSL 0.9.8r [8 Feb 2011]:
196 o Fix for security issue CVE-2011-0014
198 Major changes between OpenSSL 0.9.8p and OpenSSL 0.9.8q [2 Dec 2010]:
200 o Fix for security issue CVE-2010-4180
201 o Fix for CVE-2010-4252
203 Major changes between OpenSSL 0.9.8o and OpenSSL 0.9.8p [16 Nov 2010]:
205 o Fix for security issue CVE-2010-3864.
207 Major changes between OpenSSL 0.9.8n and OpenSSL 0.9.8o [1 Jun 2010]:
209 o Fix for security issue CVE-2010-0742.
210 o Various DTLS fixes.
211 o Recognise SHA2 certificates if only SSL algorithms added.
212 o Fix for no-rc4 compilation.
213 o Chil ENGINE unload workaround.
215 Major changes between OpenSSL 0.9.8m and OpenSSL 0.9.8n [24 Mar 2010]:
217 o CFB cipher definition fixes.
218 o Fix security issues CVE-2010-0740 and CVE-2010-0433.
220 Major changes between OpenSSL 0.9.8l and OpenSSL 0.9.8m [25 Feb 2010]:
222 o Cipher definition fixes.
223 o Workaround for slow RAND_poll() on some WIN32 versions.
224 o Remove MD2 from algorithm tables.
225 o SPKAC handling fixes.
226 o Support for RFC5746 TLS renegotiation extension.
227 o Compression memory leak fixed.
228 o Compression session resumption fixed.
229 o Ticket and SNI coexistence fixes.
230 o Many fixes to DTLS handling.
232 Major changes between OpenSSL 0.9.8k and OpenSSL 0.9.8l [5 Nov 2009]:
234 o Temporary work around for CVE-2009-3555: disable renegotiation.
236 Major changes between OpenSSL 0.9.8j and OpenSSL 0.9.8k [25 Mar 2009]:
238 o Fix various build issues.
239 o Fix security issues (CVE-2009-0590, CVE-2009-0591, CVE-2009-0789)
241 Major changes between OpenSSL 0.9.8i and OpenSSL 0.9.8j [7 Jan 2009]:
243 o Fix security issue (CVE-2008-5077)
244 o Merge FIPS 140-2 branch code.
246 Major changes between OpenSSL 0.9.8g and OpenSSL 0.9.8h [28 May 2008]:
248 o CryptoAPI ENGINE support.
249 o Various precautionary measures.
250 o Fix for bugs affecting certificate request creation.
251 o Support for local machine keyset attribute in PKCS#12 files.
253 Major changes between OpenSSL 0.9.8f and OpenSSL 0.9.8g [19 Oct 2007]:
255 o Backport of CMS functionality to 0.9.8.
256 o Fixes for bugs introduced with 0.9.8f.
258 Major changes between OpenSSL 0.9.8e and OpenSSL 0.9.8f [11 Oct 2007]:
260 o Add gcc 4.2 support.
261 o Add support for AES and SSE2 assembly lanugauge optimization
263 o Support for RFC4507bis and server name extensions if explicitly
264 selected at compile time.
266 o RFC4507bis support.
267 o TLS Extensions support.
269 Major changes between OpenSSL 0.9.8d and OpenSSL 0.9.8e [23 Feb 2007]:
271 o Various ciphersuite selection fixes.
274 Major changes between OpenSSL 0.9.8c and OpenSSL 0.9.8d [28 Sep 2006]:
276 o Introduce limits to prevent malicious key DoS (CVE-2006-2940)
277 o Fix security issues (CVE-2006-2937, CVE-2006-3737, CVE-2006-4343)
278 o Changes to ciphersuite selection algorithm
280 Major changes between OpenSSL 0.9.8b and OpenSSL 0.9.8c [5 Sep 2006]:
282 o Fix Daniel Bleichenbacher forged signature attack, CVE-2006-4339
283 o New cipher Camellia
285 Major changes between OpenSSL 0.9.8a and OpenSSL 0.9.8b [4 May 2006]:
287 o Cipher string fixes.
288 o Fixes for VC++ 2005.
289 o Updated ECC cipher suite support.
290 o New functions EVP_CIPHER_CTX_new() and EVP_CIPHER_CTX_free().
291 o Zlib compression usage fixes.
292 o Built in dynamic engine compilation support on Win32.
293 o Fixes auto dynamic engine loading in Win32.
295 Major changes between OpenSSL 0.9.8 and OpenSSL 0.9.8a [11 Oct 2005]:
297 o Fix potential SSL 2.0 rollback, CVE-2005-2969
298 o Extended Windows CE support
300 Major changes between OpenSSL 0.9.7g and OpenSSL 0.9.8 [5 Jul 2005]:
302 o Major work on the BIGNUM library for higher efficiency and to
303 make operations more streamlined and less contradictory. This
304 is the result of a major audit of the BIGNUM library.
305 o Addition of BIGNUM functions for fields GF(2^m) and NIST
306 curves, to support the Elliptic Crypto functions.
307 o Major work on Elliptic Crypto; ECDH and ECDSA added, including
308 the use through EVP, X509 and ENGINE.
309 o New ASN.1 mini-compiler that's usable through the OpenSSL
311 o Added support for ASN.1 indefinite length constructed encoding.
312 o New PKCS#12 'medium level' API to manipulate PKCS#12 files.
313 o Complete rework of shared library construction and linking
314 programs with shared or static libraries, through a separate
316 o Rework of the passing of parameters from one Makefile to another.
317 o Changed ENGINE framework to load dynamic engine modules
318 automatically from specifically given directories.
319 o New structure and ASN.1 functions for CertificatePair.
320 o Changed the ZLIB compression method to be stateful.
321 o Changed the key-generation and primality testing "progress"
322 mechanism to take a structure that contains the ticker
323 function and an argument.
324 o New engine module: GMP (performs private key exponentiation).
325 o New engine module: VIA PadLOck ACE extension in VIA C3
327 o Added support for IPv6 addresses in certificate extensions.
328 See RFC 1884, section 2.2.
329 o Added support for certificate policy mappings, policy
330 constraints and name constraints.
331 o Added support for multi-valued AVAs in the OpenSSL
333 o Added support for multiple certificates with the same subject
334 in the 'openssl ca' index file.
335 o Make it possible to create self-signed certificates using
336 'openssl ca -selfsign'.
337 o Make it possible to generate a serial number file with
338 'openssl ca -create_serial'.
339 o New binary search functions with extended functionality.
341 o New STORE structure and library to provide an interface to all
342 sorts of data repositories. Supports storage of public and
343 private keys, certificates, CRLs, numbers and arbitrary blobs.
344 This library is unfortunately unfinished and unused withing
346 o New control functions for the error stack.
347 o Changed the PKCS#7 library to support one-pass S/MIME
349 o Added the possibility to compile without old deprecated
350 functionality with the OPENSSL_NO_DEPRECATED macro or the
351 'no-deprecated' argument to the config and Configure scripts.
352 o Constification of all ASN.1 conversion functions, and other
354 o Improved platform support for PowerPC.
355 o New FIPS 180-2 algorithms (SHA-224, -256, -384 and -512).
356 o New X509_VERIFY_PARAM structure to support parametrisation
357 of X.509 path validation.
358 o Major overhaul of RC4 performance on Intel P4, IA-64 and
360 o Changed the Configure script to have some algorithms disabled
361 by default. Those can be explicitely enabled with the new
362 argument form 'enable-xxx'.
363 o Change the default digest in 'openssl' commands from MD5 to
365 o Added support for DTLS.
366 o New BIGNUM blinding.
367 o Added support for the RSA-PSS encryption scheme
368 o Added support for the RSA X.931 padding.
369 o Added support for BSD sockets on NetWare.
370 o Added support for files larger than 2GB.
371 o Added initial support for Win64.
372 o Added alternate pkg-config files.
374 Major changes between OpenSSL 0.9.7l and OpenSSL 0.9.7m [23 Feb 2007]:
376 o FIPS 1.1.1 module linking.
377 o Various ciphersuite selection fixes.
379 Major changes between OpenSSL 0.9.7k and OpenSSL 0.9.7l [28 Sep 2006]:
381 o Introduce limits to prevent malicious key DoS (CVE-2006-2940)
382 o Fix security issues (CVE-2006-2937, CVE-2006-3737, CVE-2006-4343)
384 Major changes between OpenSSL 0.9.7j and OpenSSL 0.9.7k [5 Sep 2006]:
386 o Fix Daniel Bleichenbacher forged signature attack, CVE-2006-4339
388 Major changes between OpenSSL 0.9.7i and OpenSSL 0.9.7j [4 May 2006]:
390 o Visual C++ 2005 fixes.
391 o Update Windows build system for FIPS.
393 Major changes between OpenSSL 0.9.7h and OpenSSL 0.9.7i [14 Oct 2005]:
395 o Give EVP_MAX_MD_SIZE it's old value, except for a FIPS build.
397 Major changes between OpenSSL 0.9.7g and OpenSSL 0.9.7h [11 Oct 2005]:
399 o Fix SSL 2.0 Rollback, CVE-2005-2969
400 o Allow use of fixed-length exponent on DSA signing
401 o Default fixed-window RSA, DSA, DH private-key operations
403 Major changes between OpenSSL 0.9.7f and OpenSSL 0.9.7g [11 Apr 2005]:
405 o More compilation issues fixed.
406 o Adaptation to more modern Kerberos API.
407 o Enhanced or corrected configuration for Solaris64, Mingw and Cygwin.
408 o Enhanced x86_64 assembler BIGNUM module.
409 o More constification.
410 o Added processing of proxy certificates (RFC 3820).
412 Major changes between OpenSSL 0.9.7e and OpenSSL 0.9.7f [22 Mar 2005]:
414 o Several compilation issues fixed.
415 o Many memory allocation failure checks added.
416 o Improved comparison of X509 Name type.
417 o Mandatory basic checks on certificates.
418 o Performance improvements.
420 Major changes between OpenSSL 0.9.7d and OpenSSL 0.9.7e [25 Oct 2004]:
422 o Fix race condition in CRL checking code.
423 o Fixes to PKCS#7 (S/MIME) code.
425 Major changes between OpenSSL 0.9.7c and OpenSSL 0.9.7d [17 Mar 2004]:
427 o Security: Fix Kerberos ciphersuite SSL/TLS handshaking bug
428 o Security: Fix null-pointer assignment in do_change_cipher_spec()
429 o Allow multiple active certificates with same subject in CA index
430 o Multiple X509 verification fixes
431 o Speed up HMAC and other operations
433 Major changes between OpenSSL 0.9.7b and OpenSSL 0.9.7c [30 Sep 2003]:
435 o Security: fix various ASN1 parsing bugs.
436 o New -ignore_err option to OCSP utility.
437 o Various interop and bug fixes in S/MIME code.
438 o SSL/TLS protocol fix for unrequested client certificates.
440 Major changes between OpenSSL 0.9.7a and OpenSSL 0.9.7b [10 Apr 2003]:
442 o Security: counter the Klima-Pokorny-Rosa extension of
443 Bleichbacher's attack
444 o Security: make RSA blinding default.
445 o Configuration: Irix fixes, AIX fixes, better mingw support.
446 o Support for new platforms: linux-ia64-ecc.
447 o Build: shared library support fixes.
448 o ASN.1: treat domainComponent correctly.
449 o Documentation: fixes and additions.
451 Major changes between OpenSSL 0.9.7 and OpenSSL 0.9.7a [19 Feb 2003]:
453 o Security: Important security related bugfixes.
454 o Enhanced compatibility with MIT Kerberos.
455 o Can be built without the ENGINE framework.
456 o IA32 assembler enhancements.
457 o Support for new platforms: FreeBSD/IA64 and FreeBSD/Sparc64.
458 o Configuration: the no-err option now works properly.
459 o SSL/TLS: now handles manual certificate chain building.
460 o SSL/TLS: certain session ID malfunctions corrected.
462 Major changes between OpenSSL 0.9.6 and OpenSSL 0.9.7 [30 Dec 2002]:
464 o New library section OCSP.
465 o Complete rewrite of ASN1 code.
466 o CRL checking in verify code and openssl utility.
467 o Extension copying in 'ca' utility.
468 o Flexible display options in 'ca' utility.
469 o Provisional support for international characters with UTF8.
470 o Support for external crypto devices ('engine') is no longer
471 a separate distribution.
472 o New elliptic curve library section.
473 o New AES (Rijndael) library section.
474 o Support for new platforms: Windows CE, Tandem OSS, A/UX, AIX 64-bit,
475 Linux x86_64, Linux 64-bit on Sparc v9
476 o Extended support for some platforms: VxWorks
477 o Enhanced support for shared libraries.
478 o Now only builds PIC code when shared library support is requested.
479 o Support for pkg-config.
480 o Lots of new manuals.
481 o Makes symbolic links to or copies of manuals to cover all described
483 o Change DES API to clean up the namespace (some applications link also
484 against libdes providing similar functions having the same name).
485 Provide macros for backward compatibility (will be removed in the
487 o Unify handling of cryptographic algorithms (software and engine)
488 to be available via EVP routines for asymmetric and symmetric ciphers.
489 o NCONF: new configuration handling routines.
490 o Change API to use more 'const' modifiers to improve error checking
492 o Finally remove references to RSAref.
493 o Reworked parts of the BIGNUM code.
494 o Support for new engines: Broadcom ubsec, Accelerated Encryption
495 Processing, IBM 4758.
496 o A few new engines added in the demos area.
497 o Extended and corrected OID (object identifier) table.
498 o PRNG: query at more locations for a random device, automatic query for
499 EGD style random sources at several locations.
500 o SSL/TLS: allow optional cipher choice according to server's preference.
501 o SSL/TLS: allow server to explicitly set new session ids.
502 o SSL/TLS: support Kerberos cipher suites (RFC2712).
503 Only supports MIT Kerberos for now.
504 o SSL/TLS: allow more precise control of renegotiations and sessions.
505 o SSL/TLS: add callback to retrieve SSL/TLS messages.
506 o SSL/TLS: support AES cipher suites (RFC3268).
508 Major changes between OpenSSL 0.9.6j and OpenSSL 0.9.6k [30 Sep 2003]:
510 o Security: fix various ASN1 parsing bugs.
511 o SSL/TLS protocol fix for unrequested client certificates.
513 Major changes between OpenSSL 0.9.6i and OpenSSL 0.9.6j [10 Apr 2003]:
515 o Security: counter the Klima-Pokorny-Rosa extension of
516 Bleichbacher's attack
517 o Security: make RSA blinding default.
518 o Build: shared library support fixes.
520 Major changes between OpenSSL 0.9.6h and OpenSSL 0.9.6i [19 Feb 2003]:
522 o Important security related bugfixes.
524 Major changes between OpenSSL 0.9.6g and OpenSSL 0.9.6h [5 Dec 2002]:
526 o New configuration targets for Tandem OSS and A/UX.
527 o New OIDs for Microsoft attributes.
528 o Better handling of SSL session caching.
529 o Better comparison of distinguished names.
530 o Better handling of shared libraries in a mixed GNU/non-GNU environment.
531 o Support assembler code with Borland C.
532 o Fixes for length problems.
533 o Fixes for uninitialised variables.
534 o Fixes for memory leaks, some unusual crashes and some race conditions.
535 o Fixes for smaller building problems.
536 o Updates of manuals, FAQ and other instructive documents.
538 Major changes between OpenSSL 0.9.6f and OpenSSL 0.9.6g [9 Aug 2002]:
540 o Important building fixes on Unix.
542 Major changes between OpenSSL 0.9.6e and OpenSSL 0.9.6f [8 Aug 2002]:
544 o Various important bugfixes.
546 Major changes between OpenSSL 0.9.6d and OpenSSL 0.9.6e [30 Jul 2002]:
548 o Important security related bugfixes.
549 o Various SSL/TLS library bugfixes.
551 Major changes between OpenSSL 0.9.6c and OpenSSL 0.9.6d [9 May 2002]:
553 o Various SSL/TLS library bugfixes.
554 o Fix DH parameter generation for 'non-standard' generators.
556 Major changes between OpenSSL 0.9.6b and OpenSSL 0.9.6c [21 Dec 2001]:
558 o Various SSL/TLS library bugfixes.
559 o BIGNUM library fixes.
560 o RSA OAEP and random number generation fixes.
561 o Object identifiers corrected and added.
562 o Add assembler BN routines for IA64.
563 o Add support for OS/390 Unix, UnixWare with gcc, OpenUNIX 8,
564 MIPS Linux; shared library support for Irix, HP-UX.
565 o Add crypto accelerator support for AEP, Baltimore SureWare,
566 Broadcom and Cryptographic Appliance's keyserver
567 [in 0.9.6c-engine release].
569 Major changes between OpenSSL 0.9.6a and OpenSSL 0.9.6b [9 Jul 2001]:
571 o Security fix: PRNG improvements.
572 o Security fix: RSA OAEP check.
573 o Security fix: Reinsert and fix countermeasure to Bleichbacher's
575 o MIPS bug fix in BIGNUM.
576 o Bug fix in "openssl enc".
577 o Bug fix in X.509 printing routine.
578 o Bug fix in DSA verification routine and DSA S/MIME verification.
579 o Bug fix to make PRNG thread-safe.
580 o Bug fix in RAND_file_name().
581 o Bug fix in compatibility mode trust settings.
582 o Bug fix in blowfish EVP.
583 o Increase default size for BIO buffering filter.
584 o Compatibility fixes in some scripts.
586 Major changes between OpenSSL 0.9.6 and OpenSSL 0.9.6a [5 Apr 2001]:
588 o Security fix: change behavior of OpenSSL to avoid using
589 environment variables when running as root.
590 o Security fix: check the result of RSA-CRT to reduce the
591 possibility of deducing the private key from an incorrectly
592 calculated signature.
593 o Security fix: prevent Bleichenbacher's DSA attack.
594 o Security fix: Zero the premaster secret after deriving the
595 master secret in DH ciphersuites.
596 o Reimplement SSL_peek(), which had various problems.
597 o Compatibility fix: the function des_encrypt() renamed to
598 des_encrypt1() to avoid clashes with some Unixen libc.
599 o Bug fixes for Win32, HP/UX and Irix.
600 o Bug fixes in BIGNUM, SSL, PKCS#7, PKCS#12, X.509, CONF and
601 memory checking routines.
602 o Bug fixes for RSA operations in threaded environments.
603 o Bug fixes in misc. openssl applications.
604 o Remove a few potential memory leaks.
605 o Add tighter checks of BIGNUM routines.
606 o Shared library support has been reworked for generality.
607 o More documentation.
608 o New function BN_rand_range().
609 o Add "-rand" option to openssl s_client and s_server.
611 Major changes between OpenSSL 0.9.5a and OpenSSL 0.9.6 [10 Oct 2000]:
613 o Some documentation for BIO and SSL libraries.
614 o Enhanced chain verification using key identifiers.
615 o New sign and verify options to 'dgst' application.
616 o Support for DER and PEM encoded messages in 'smime' application.
617 o New 'rsautl' application, low level RSA utility.
619 o Bugfix for SSL rollback padding check.
620 o Support for external crypto devices [1].
621 o Enhanced EVP interface.
623 [1] The support for external crypto devices is currently a separate
624 distribution. See the file README.ENGINE.
626 Major changes between OpenSSL 0.9.5 and OpenSSL 0.9.5a [1 Apr 2000]:
628 o Bug fixes for Win32, SuSE Linux, NeXTSTEP and FreeBSD 2.2.8
629 o Shared library support for HPUX and Solaris-gcc
630 o Support of Linux/IA64
631 o Assembler support for Mingw32
632 o New 'rand' application
633 o New way to check for existence of algorithms from scripts
635 Major changes between OpenSSL 0.9.4 and OpenSSL 0.9.5 [25 May 2000]:
637 o S/MIME support in new 'smime' command
638 o Documentation for the OpenSSL command line application
639 o Automation of 'req' application
640 o Fixes to make s_client, s_server work under Windows
641 o Support for multiple fieldnames in SPKACs
642 o New SPKAC command line utilty and associated library functions
643 o Options to allow passwords to be obtained from various sources
644 o New public key PEM format and options to handle it
645 o Many other fixes and enhancements to command line utilities
646 o Usable certificate chain verification
647 o Certificate purpose checking
648 o Certificate trust settings
649 o Support of authority information access extension
650 o Extensions in certificate requests
651 o Simplified X509 name and attribute routines
652 o Initial (incomplete) support for international character sets
653 o New DH_METHOD, DSA_METHOD and enhanced RSA_METHOD
654 o Read only memory BIOs and simplified creation function
655 o TLS/SSL protocol bugfixes: Accept TLS 'client hello' in SSL 3.0
656 record; allow fragmentation and interleaving of handshake and other
658 o TLS/SSL code now "tolerates" MS SGC
659 o Work around for Netscape client certificate hang bug
660 o RSA_NULL option that removes RSA patent code but keeps other
662 o Memory leak detection now allows applications to add extra information
663 via a per-thread stack
664 o PRNG robustness improved
666 o BIGNUM library bug fixes
667 o Faster DSA parameter generation
668 o Enhanced support for Alpha Linux
669 o Experimental MacOS support
671 Major changes between OpenSSL 0.9.3 and OpenSSL 0.9.4 [9 Aug 1999]:
673 o Transparent support for PKCS#8 format private keys: these are used
674 by several software packages and are more secure than the standard
676 o PKCS#5 v2.0 implementation
677 o Password callbacks have a new void * argument for application data
678 o Avoid various memory leaks
679 o New pipe-like BIO that allows using the SSL library when actual I/O
680 must be handled by the application (BIO pair)
682 Major changes between OpenSSL 0.9.2b and OpenSSL 0.9.3 [24 May 1999]:
683 o Lots of enhancements and cleanups to the Configuration mechanism
684 o RSA OEAP related fixes
685 o Added `openssl ca -revoke' option for revoking a certificate
686 o Source cleanups: const correctness, type-safe stacks and ASN.1 SETs
687 o Source tree cleanups: removed lots of obsolete files
688 o Thawte SXNet, certificate policies and CRL distribution points
690 o Preliminary (experimental) S/MIME support
691 o Support for ASN.1 UTF8String and VisibleString
692 o Full integration of PKCS#12 code
693 o Sparc assembler bignum implementation, optimized hash functions
694 o Option to disable selected ciphers
696 Major changes between OpenSSL 0.9.1c and OpenSSL 0.9.2b [22 Mar 1999]:
697 o Fixed a security hole related to session resumption
698 o Fixed RSA encryption routines for the p < q case
699 o "ALL" in cipher lists now means "everything except NULL ciphers"
700 o Support for Triple-DES CBCM cipher
701 o Support of Optimal Asymmetric Encryption Padding (OAEP) for RSA
702 o First support for new TLSv1 ciphers
703 o Added a few new BIOs (syslog BIO, reliable BIO)
704 o Extended support for DSA certificate/keys.
705 o Extended support for Certificate Signing Requests (CSR)
706 o Initial support for X.509v3 extensions
707 o Extended support for compression inside the SSL record layer
708 o Overhauled Win32 builds
709 o Cleanups and fixes to the Big Number (BN) library
710 o Support for ASN.1 GeneralizedTime
711 o Splitted ASN.1 SETs from SEQUENCEs
712 o ASN1 and PEM support for Netscape Certificate Sequences
713 o Overhauled Perl interface
714 o Lots of source tree cleanups.
715 o Lots of memory leak fixes.
718 Major changes between SSLeay 0.9.0b and OpenSSL 0.9.1c [23 Dec 1998]:
719 o Integration of the popular NO_RSA/NO_DSA patches
720 o Initial support for compression inside the SSL record layer
721 o Added BIO proxy and filtering functionality
722 o Extended Big Number (BN) library
723 o Added RIPE MD160 message digest
724 o Addeed support for RC2/64bit cipher
725 o Extended ASN.1 parser routines
726 o Adjustations of the source tree for CVS
727 o Support for various new platforms