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 1.0.1h 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 1.0.1g and OpenSSL 1.0.1h [5 Jun 2014]
21 o Fix for CVE-2014-0224
22 o Fix for CVE-2014-0221
23 o Fix for CVE-2014-0195
24 o Fix for CVE-2014-3470
25 o Fix for CVE-2010-5298
27 Major changes between OpenSSL 1.0.1f and OpenSSL 1.0.1g [7 Apr 2014]
29 o Fix for CVE-2014-0160
30 o Add TLS padding extension workaround for broken servers.
31 o Fix for CVE-2014-0076
33 Major changes between OpenSSL 1.0.1e and OpenSSL 1.0.1f [6 Jan 2014]
35 o Don't include gmt_unix_time in TLS server and client random values
36 o Fix for TLS record tampering bug CVE-2013-4353
37 o Fix for TLS version checking bug CVE-2013-6449
38 o Fix for DTLS retransmission bug CVE-2013-6450
40 Major changes between OpenSSL 1.0.1d and OpenSSL 1.0.1e [11 Feb 2013]:
42 o Corrected fix for CVE-2013-0169
44 Major changes between OpenSSL 1.0.1c and OpenSSL 1.0.1d [4 Feb 2013]:
46 o Fix renegotiation in TLS 1.1, 1.2 by using the correct TLS version.
47 o Include the fips configuration module.
48 o Fix OCSP bad key DoS attack CVE-2013-0166
49 o Fix for SSL/TLS/DTLS CBC plaintext recovery attack CVE-2013-0169
50 o Fix for TLS AESNI record handling flaw CVE-2012-2686
52 Major changes between OpenSSL 1.0.1b and OpenSSL 1.0.1c [10 May 2012]:
54 o Fix TLS/DTLS record length checking bug CVE-2012-2333
55 o Don't attempt to use non-FIPS composite ciphers in FIPS mode.
57 Major changes between OpenSSL 1.0.1a and OpenSSL 1.0.1b [26 Apr 2012]:
59 o Fix compilation error on non-x86 platforms.
60 o Make FIPS capable OpenSSL ciphers work in non-FIPS mode.
61 o Fix SSL_OP_NO_TLSv1_1 clash with SSL_OP_ALL in OpenSSL 1.0.0
63 Major changes between OpenSSL 1.0.1 and OpenSSL 1.0.1a [19 Apr 2012]:
65 o Fix for ASN1 overflow bug CVE-2012-2110
66 o Workarounds for some servers that hang on long client hellos.
67 o Fix SEGV in AES code.
69 Major changes between OpenSSL 1.0.0h and OpenSSL 1.0.1 [14 Mar 2012]:
71 o TLS/DTLS heartbeat support.
73 o RFC 5705 TLS key material exporter.
74 o RFC 5764 DTLS-SRTP negotiation.
75 o Next Protocol Negotiation.
76 o PSS signatures in certificates, requests and CRLs.
77 o Support for password based recipient info for CMS.
78 o Support TLS v1.2 and TLS v1.1.
79 o Preliminary FIPS capability for unvalidated 2.0 FIPS module.
82 Major changes between OpenSSL 1.0.0k and OpenSSL 1.0.0l [6 Jan 2014]
84 o Fix for DTLS retransmission bug CVE-2013-6450
86 Major changes between OpenSSL 1.0.0j and OpenSSL 1.0.0k [5 Feb 2013]:
88 o Fix for SSL/TLS/DTLS CBC plaintext recovery attack CVE-2013-0169
89 o Fix OCSP bad key DoS attack CVE-2013-0166
91 Major changes between OpenSSL 1.0.0i and OpenSSL 1.0.0j [10 May 2012]:
93 o Fix DTLS record length checking bug CVE-2012-2333
95 Major changes between OpenSSL 1.0.0h and OpenSSL 1.0.0i [19 Apr 2012]:
97 o Fix for ASN1 overflow bug CVE-2012-2110
99 Major changes between OpenSSL 1.0.0g and OpenSSL 1.0.0h [12 Mar 2012]:
101 o Fix for CMS/PKCS#7 MMA CVE-2012-0884
102 o Corrected fix for CVE-2011-4619
103 o Various DTLS fixes.
105 Major changes between OpenSSL 1.0.0f and OpenSSL 1.0.0g [18 Jan 2012]:
107 o Fix for DTLS DoS issue CVE-2012-0050
109 Major changes between OpenSSL 1.0.0e and OpenSSL 1.0.0f [4 Jan 2012]:
111 o Fix for DTLS plaintext recovery attack CVE-2011-4108
112 o Clear block padding bytes of SSL 3.0 records CVE-2011-4576
113 o Only allow one SGC handshake restart for SSL/TLS CVE-2011-4619
114 o Check parameters are not NULL in GOST ENGINE CVE-2012-0027
115 o Check for malformed RFC3779 data CVE-2011-4577
117 Major changes between OpenSSL 1.0.0d and OpenSSL 1.0.0e [6 Sep 2011]:
119 o Fix for CRL vulnerability issue CVE-2011-3207
120 o Fix for ECDH crashes CVE-2011-3210
121 o Protection against EC timing attacks.
122 o Support ECDH ciphersuites for certificates using SHA2 algorithms.
123 o Various DTLS fixes.
125 Major changes between OpenSSL 1.0.0c and OpenSSL 1.0.0d [8 Feb 2011]:
127 o Fix for security issue CVE-2011-0014
129 Major changes between OpenSSL 1.0.0b and OpenSSL 1.0.0c [2 Dec 2010]:
131 o Fix for security issue CVE-2010-4180
132 o Fix for CVE-2010-4252
133 o Fix mishandling of absent EC point format extension.
134 o Fix various platform compilation issues.
135 o Corrected fix for security issue CVE-2010-3864.
137 Major changes between OpenSSL 1.0.0a and OpenSSL 1.0.0b [16 Nov 2010]:
139 o Fix for security issue CVE-2010-3864.
140 o Fix for CVE-2010-2939
141 o Fix WIN32 build system for GOST ENGINE.
143 Major changes between OpenSSL 1.0.0 and OpenSSL 1.0.0a [1 Jun 2010]:
145 o Fix for security issue CVE-2010-1633.
146 o GOST MAC and CFB fixes.
148 Major changes between OpenSSL 0.9.8n and OpenSSL 1.0.0 [29 Mar 2010]:
150 o RFC3280 path validation: sufficient to process PKITS tests.
151 o Integrated support for PVK files and keyblobs.
152 o Change default private key format to PKCS#8.
153 o CMS support: able to process all examples in RFC4134
154 o Streaming ASN1 encode support for PKCS#7 and CMS.
155 o Multiple signer and signer add support for PKCS#7 and CMS.
156 o ASN1 printing support.
157 o Whirlpool hash algorithm added.
158 o RFC3161 time stamp support.
159 o New generalised public key API supporting ENGINE based algorithms.
160 o New generalised public key API utilities.
161 o New ENGINE supporting GOST algorithms.
162 o SSL/TLS GOST ciphersuite support.
163 o PKCS#7 and CMS GOST support.
164 o RFC4279 PSK ciphersuite support.
165 o Supported points format extension for ECC ciphersuites.
166 o ecdsa-with-SHA224/256/384/512 signature types.
167 o dsa-with-SHA224 and dsa-with-SHA256 signature types.
168 o Opaque PRF Input TLS extension support.
169 o Updated time routines to avoid OS limitations.
171 Major changes between OpenSSL 0.9.8y and OpenSSL 0.9.8za [5 Jun 2014]:
173 o Fix for CVE-2014-0224
174 o Fix for CVE-2014-0221
175 o Fix for CVE-2014-0195
176 o Fix for CVE-2014-3470
177 o Fix for CVE-2014-0076
178 o Fix for CVE-2010-5298
179 o Fix to TLS alert handling.
181 Major changes between OpenSSL 0.9.8x and OpenSSL 0.9.8y [5 Feb 2013]:
183 o Fix for SSL/TLS/DTLS CBC plaintext recovery attack CVE-2013-0169
184 o Fix OCSP bad key DoS attack CVE-2013-0166
186 Major changes between OpenSSL 0.9.8w and OpenSSL 0.9.8x [10 May 2012]:
188 o Fix DTLS record length checking bug CVE-2012-2333
190 Major changes between OpenSSL 0.9.8v and OpenSSL 0.9.8w [23 Apr 2012]:
192 o Fix for CVE-2012-2131 (corrected fix for 0.9.8 and CVE-2012-2110)
194 Major changes between OpenSSL 0.9.8u and OpenSSL 0.9.8v [19 Apr 2012]:
196 o Fix for ASN1 overflow bug CVE-2012-2110
198 Major changes between OpenSSL 0.9.8t and OpenSSL 0.9.8u [12 Mar 2012]:
200 o Fix for CMS/PKCS#7 MMA CVE-2012-0884
201 o Corrected fix for CVE-2011-4619
202 o Various DTLS fixes.
204 Major changes between OpenSSL 0.9.8s and OpenSSL 0.9.8t [18 Jan 2012]:
206 o Fix for DTLS DoS issue CVE-2012-0050
208 Major changes between OpenSSL 0.9.8r and OpenSSL 0.9.8s [4 Jan 2012]:
210 o Fix for DTLS plaintext recovery attack CVE-2011-4108
211 o Fix policy check double free error CVE-2011-4109
212 o Clear block padding bytes of SSL 3.0 records CVE-2011-4576
213 o Only allow one SGC handshake restart for SSL/TLS CVE-2011-4619
214 o Check for malformed RFC3779 data CVE-2011-4577
216 Major changes between OpenSSL 0.9.8q and OpenSSL 0.9.8r [8 Feb 2011]:
218 o Fix for security issue CVE-2011-0014
220 Major changes between OpenSSL 0.9.8p and OpenSSL 0.9.8q [2 Dec 2010]:
222 o Fix for security issue CVE-2010-4180
223 o Fix for CVE-2010-4252
225 Major changes between OpenSSL 0.9.8o and OpenSSL 0.9.8p [16 Nov 2010]:
227 o Fix for security issue CVE-2010-3864.
229 Major changes between OpenSSL 0.9.8n and OpenSSL 0.9.8o [1 Jun 2010]:
231 o Fix for security issue CVE-2010-0742.
232 o Various DTLS fixes.
233 o Recognise SHA2 certificates if only SSL algorithms added.
234 o Fix for no-rc4 compilation.
235 o Chil ENGINE unload workaround.
237 Major changes between OpenSSL 0.9.8m and OpenSSL 0.9.8n [24 Mar 2010]:
239 o CFB cipher definition fixes.
240 o Fix security issues CVE-2010-0740 and CVE-2010-0433.
242 Major changes between OpenSSL 0.9.8l and OpenSSL 0.9.8m [25 Feb 2010]:
244 o Cipher definition fixes.
245 o Workaround for slow RAND_poll() on some WIN32 versions.
246 o Remove MD2 from algorithm tables.
247 o SPKAC handling fixes.
248 o Support for RFC5746 TLS renegotiation extension.
249 o Compression memory leak fixed.
250 o Compression session resumption fixed.
251 o Ticket and SNI coexistence fixes.
252 o Many fixes to DTLS handling.
254 Major changes between OpenSSL 0.9.8k and OpenSSL 0.9.8l [5 Nov 2009]:
256 o Temporary work around for CVE-2009-3555: disable renegotiation.
258 Major changes between OpenSSL 0.9.8j and OpenSSL 0.9.8k [25 Mar 2009]:
260 o Fix various build issues.
261 o Fix security issues (CVE-2009-0590, CVE-2009-0591, CVE-2009-0789)
263 Major changes between OpenSSL 0.9.8i and OpenSSL 0.9.8j [7 Jan 2009]:
265 o Fix security issue (CVE-2008-5077)
266 o Merge FIPS 140-2 branch code.
268 Major changes between OpenSSL 0.9.8g and OpenSSL 0.9.8h [28 May 2008]:
270 o CryptoAPI ENGINE support.
271 o Various precautionary measures.
272 o Fix for bugs affecting certificate request creation.
273 o Support for local machine keyset attribute in PKCS#12 files.
275 Major changes between OpenSSL 0.9.8f and OpenSSL 0.9.8g [19 Oct 2007]:
277 o Backport of CMS functionality to 0.9.8.
278 o Fixes for bugs introduced with 0.9.8f.
280 Major changes between OpenSSL 0.9.8e and OpenSSL 0.9.8f [11 Oct 2007]:
282 o Add gcc 4.2 support.
283 o Add support for AES and SSE2 assembly lanugauge optimization
285 o Support for RFC4507bis and server name extensions if explicitly
286 selected at compile time.
288 o RFC4507bis support.
289 o TLS Extensions support.
291 Major changes between OpenSSL 0.9.8d and OpenSSL 0.9.8e [23 Feb 2007]:
293 o Various ciphersuite selection fixes.
296 Major changes between OpenSSL 0.9.8c and OpenSSL 0.9.8d [28 Sep 2006]:
298 o Introduce limits to prevent malicious key DoS (CVE-2006-2940)
299 o Fix security issues (CVE-2006-2937, CVE-2006-3737, CVE-2006-4343)
300 o Changes to ciphersuite selection algorithm
302 Major changes between OpenSSL 0.9.8b and OpenSSL 0.9.8c [5 Sep 2006]:
304 o Fix Daniel Bleichenbacher forged signature attack, CVE-2006-4339
305 o New cipher Camellia
307 Major changes between OpenSSL 0.9.8a and OpenSSL 0.9.8b [4 May 2006]:
309 o Cipher string fixes.
310 o Fixes for VC++ 2005.
311 o Updated ECC cipher suite support.
312 o New functions EVP_CIPHER_CTX_new() and EVP_CIPHER_CTX_free().
313 o Zlib compression usage fixes.
314 o Built in dynamic engine compilation support on Win32.
315 o Fixes auto dynamic engine loading in Win32.
317 Major changes between OpenSSL 0.9.8 and OpenSSL 0.9.8a [11 Oct 2005]:
319 o Fix potential SSL 2.0 rollback, CVE-2005-2969
320 o Extended Windows CE support
322 Major changes between OpenSSL 0.9.7g and OpenSSL 0.9.8 [5 Jul 2005]:
324 o Major work on the BIGNUM library for higher efficiency and to
325 make operations more streamlined and less contradictory. This
326 is the result of a major audit of the BIGNUM library.
327 o Addition of BIGNUM functions for fields GF(2^m) and NIST
328 curves, to support the Elliptic Crypto functions.
329 o Major work on Elliptic Crypto; ECDH and ECDSA added, including
330 the use through EVP, X509 and ENGINE.
331 o New ASN.1 mini-compiler that's usable through the OpenSSL
333 o Added support for ASN.1 indefinite length constructed encoding.
334 o New PKCS#12 'medium level' API to manipulate PKCS#12 files.
335 o Complete rework of shared library construction and linking
336 programs with shared or static libraries, through a separate
338 o Rework of the passing of parameters from one Makefile to another.
339 o Changed ENGINE framework to load dynamic engine modules
340 automatically from specifically given directories.
341 o New structure and ASN.1 functions for CertificatePair.
342 o Changed the ZLIB compression method to be stateful.
343 o Changed the key-generation and primality testing "progress"
344 mechanism to take a structure that contains the ticker
345 function and an argument.
346 o New engine module: GMP (performs private key exponentiation).
347 o New engine module: VIA PadLOck ACE extension in VIA C3
349 o Added support for IPv6 addresses in certificate extensions.
350 See RFC 1884, section 2.2.
351 o Added support for certificate policy mappings, policy
352 constraints and name constraints.
353 o Added support for multi-valued AVAs in the OpenSSL
355 o Added support for multiple certificates with the same subject
356 in the 'openssl ca' index file.
357 o Make it possible to create self-signed certificates using
358 'openssl ca -selfsign'.
359 o Make it possible to generate a serial number file with
360 'openssl ca -create_serial'.
361 o New binary search functions with extended functionality.
363 o New STORE structure and library to provide an interface to all
364 sorts of data repositories. Supports storage of public and
365 private keys, certificates, CRLs, numbers and arbitrary blobs.
366 This library is unfortunately unfinished and unused withing
368 o New control functions for the error stack.
369 o Changed the PKCS#7 library to support one-pass S/MIME
371 o Added the possibility to compile without old deprecated
372 functionality with the OPENSSL_NO_DEPRECATED macro or the
373 'no-deprecated' argument to the config and Configure scripts.
374 o Constification of all ASN.1 conversion functions, and other
376 o Improved platform support for PowerPC.
377 o New FIPS 180-2 algorithms (SHA-224, -256, -384 and -512).
378 o New X509_VERIFY_PARAM structure to support parametrisation
379 of X.509 path validation.
380 o Major overhaul of RC4 performance on Intel P4, IA-64 and
382 o Changed the Configure script to have some algorithms disabled
383 by default. Those can be explicitely enabled with the new
384 argument form 'enable-xxx'.
385 o Change the default digest in 'openssl' commands from MD5 to
387 o Added support for DTLS.
388 o New BIGNUM blinding.
389 o Added support for the RSA-PSS encryption scheme
390 o Added support for the RSA X.931 padding.
391 o Added support for BSD sockets on NetWare.
392 o Added support for files larger than 2GB.
393 o Added initial support for Win64.
394 o Added alternate pkg-config files.
396 Major changes between OpenSSL 0.9.7l and OpenSSL 0.9.7m [23 Feb 2007]:
398 o FIPS 1.1.1 module linking.
399 o Various ciphersuite selection fixes.
401 Major changes between OpenSSL 0.9.7k and OpenSSL 0.9.7l [28 Sep 2006]:
403 o Introduce limits to prevent malicious key DoS (CVE-2006-2940)
404 o Fix security issues (CVE-2006-2937, CVE-2006-3737, CVE-2006-4343)
406 Major changes between OpenSSL 0.9.7j and OpenSSL 0.9.7k [5 Sep 2006]:
408 o Fix Daniel Bleichenbacher forged signature attack, CVE-2006-4339
410 Major changes between OpenSSL 0.9.7i and OpenSSL 0.9.7j [4 May 2006]:
412 o Visual C++ 2005 fixes.
413 o Update Windows build system for FIPS.
415 Major changes between OpenSSL 0.9.7h and OpenSSL 0.9.7i [14 Oct 2005]:
417 o Give EVP_MAX_MD_SIZE it's old value, except for a FIPS build.
419 Major changes between OpenSSL 0.9.7g and OpenSSL 0.9.7h [11 Oct 2005]:
421 o Fix SSL 2.0 Rollback, CVE-2005-2969
422 o Allow use of fixed-length exponent on DSA signing
423 o Default fixed-window RSA, DSA, DH private-key operations
425 Major changes between OpenSSL 0.9.7f and OpenSSL 0.9.7g [11 Apr 2005]:
427 o More compilation issues fixed.
428 o Adaptation to more modern Kerberos API.
429 o Enhanced or corrected configuration for Solaris64, Mingw and Cygwin.
430 o Enhanced x86_64 assembler BIGNUM module.
431 o More constification.
432 o Added processing of proxy certificates (RFC 3820).
434 Major changes between OpenSSL 0.9.7e and OpenSSL 0.9.7f [22 Mar 2005]:
436 o Several compilation issues fixed.
437 o Many memory allocation failure checks added.
438 o Improved comparison of X509 Name type.
439 o Mandatory basic checks on certificates.
440 o Performance improvements.
442 Major changes between OpenSSL 0.9.7d and OpenSSL 0.9.7e [25 Oct 2004]:
444 o Fix race condition in CRL checking code.
445 o Fixes to PKCS#7 (S/MIME) code.
447 Major changes between OpenSSL 0.9.7c and OpenSSL 0.9.7d [17 Mar 2004]:
449 o Security: Fix Kerberos ciphersuite SSL/TLS handshaking bug
450 o Security: Fix null-pointer assignment in do_change_cipher_spec()
451 o Allow multiple active certificates with same subject in CA index
452 o Multiple X509 verification fixes
453 o Speed up HMAC and other operations
455 Major changes between OpenSSL 0.9.7b and OpenSSL 0.9.7c [30 Sep 2003]:
457 o Security: fix various ASN1 parsing bugs.
458 o New -ignore_err option to OCSP utility.
459 o Various interop and bug fixes in S/MIME code.
460 o SSL/TLS protocol fix for unrequested client certificates.
462 Major changes between OpenSSL 0.9.7a and OpenSSL 0.9.7b [10 Apr 2003]:
464 o Security: counter the Klima-Pokorny-Rosa extension of
465 Bleichbacher's attack
466 o Security: make RSA blinding default.
467 o Configuration: Irix fixes, AIX fixes, better mingw support.
468 o Support for new platforms: linux-ia64-ecc.
469 o Build: shared library support fixes.
470 o ASN.1: treat domainComponent correctly.
471 o Documentation: fixes and additions.
473 Major changes between OpenSSL 0.9.7 and OpenSSL 0.9.7a [19 Feb 2003]:
475 o Security: Important security related bugfixes.
476 o Enhanced compatibility with MIT Kerberos.
477 o Can be built without the ENGINE framework.
478 o IA32 assembler enhancements.
479 o Support for new platforms: FreeBSD/IA64 and FreeBSD/Sparc64.
480 o Configuration: the no-err option now works properly.
481 o SSL/TLS: now handles manual certificate chain building.
482 o SSL/TLS: certain session ID malfunctions corrected.
484 Major changes between OpenSSL 0.9.6 and OpenSSL 0.9.7 [30 Dec 2002]:
486 o New library section OCSP.
487 o Complete rewrite of ASN1 code.
488 o CRL checking in verify code and openssl utility.
489 o Extension copying in 'ca' utility.
490 o Flexible display options in 'ca' utility.
491 o Provisional support for international characters with UTF8.
492 o Support for external crypto devices ('engine') is no longer
493 a separate distribution.
494 o New elliptic curve library section.
495 o New AES (Rijndael) library section.
496 o Support for new platforms: Windows CE, Tandem OSS, A/UX, AIX 64-bit,
497 Linux x86_64, Linux 64-bit on Sparc v9
498 o Extended support for some platforms: VxWorks
499 o Enhanced support for shared libraries.
500 o Now only builds PIC code when shared library support is requested.
501 o Support for pkg-config.
502 o Lots of new manuals.
503 o Makes symbolic links to or copies of manuals to cover all described
505 o Change DES API to clean up the namespace (some applications link also
506 against libdes providing similar functions having the same name).
507 Provide macros for backward compatibility (will be removed in the
509 o Unify handling of cryptographic algorithms (software and engine)
510 to be available via EVP routines for asymmetric and symmetric ciphers.
511 o NCONF: new configuration handling routines.
512 o Change API to use more 'const' modifiers to improve error checking
514 o Finally remove references to RSAref.
515 o Reworked parts of the BIGNUM code.
516 o Support for new engines: Broadcom ubsec, Accelerated Encryption
517 Processing, IBM 4758.
518 o A few new engines added in the demos area.
519 o Extended and corrected OID (object identifier) table.
520 o PRNG: query at more locations for a random device, automatic query for
521 EGD style random sources at several locations.
522 o SSL/TLS: allow optional cipher choice according to server's preference.
523 o SSL/TLS: allow server to explicitly set new session ids.
524 o SSL/TLS: support Kerberos cipher suites (RFC2712).
525 Only supports MIT Kerberos for now.
526 o SSL/TLS: allow more precise control of renegotiations and sessions.
527 o SSL/TLS: add callback to retrieve SSL/TLS messages.
528 o SSL/TLS: support AES cipher suites (RFC3268).
530 Major changes between OpenSSL 0.9.6j and OpenSSL 0.9.6k [30 Sep 2003]:
532 o Security: fix various ASN1 parsing bugs.
533 o SSL/TLS protocol fix for unrequested client certificates.
535 Major changes between OpenSSL 0.9.6i and OpenSSL 0.9.6j [10 Apr 2003]:
537 o Security: counter the Klima-Pokorny-Rosa extension of
538 Bleichbacher's attack
539 o Security: make RSA blinding default.
540 o Build: shared library support fixes.
542 Major changes between OpenSSL 0.9.6h and OpenSSL 0.9.6i [19 Feb 2003]:
544 o Important security related bugfixes.
546 Major changes between OpenSSL 0.9.6g and OpenSSL 0.9.6h [5 Dec 2002]:
548 o New configuration targets for Tandem OSS and A/UX.
549 o New OIDs for Microsoft attributes.
550 o Better handling of SSL session caching.
551 o Better comparison of distinguished names.
552 o Better handling of shared libraries in a mixed GNU/non-GNU environment.
553 o Support assembler code with Borland C.
554 o Fixes for length problems.
555 o Fixes for uninitialised variables.
556 o Fixes for memory leaks, some unusual crashes and some race conditions.
557 o Fixes for smaller building problems.
558 o Updates of manuals, FAQ and other instructive documents.
560 Major changes between OpenSSL 0.9.6f and OpenSSL 0.9.6g [9 Aug 2002]:
562 o Important building fixes on Unix.
564 Major changes between OpenSSL 0.9.6e and OpenSSL 0.9.6f [8 Aug 2002]:
566 o Various important bugfixes.
568 Major changes between OpenSSL 0.9.6d and OpenSSL 0.9.6e [30 Jul 2002]:
570 o Important security related bugfixes.
571 o Various SSL/TLS library bugfixes.
573 Major changes between OpenSSL 0.9.6c and OpenSSL 0.9.6d [9 May 2002]:
575 o Various SSL/TLS library bugfixes.
576 o Fix DH parameter generation for 'non-standard' generators.
578 Major changes between OpenSSL 0.9.6b and OpenSSL 0.9.6c [21 Dec 2001]:
580 o Various SSL/TLS library bugfixes.
581 o BIGNUM library fixes.
582 o RSA OAEP and random number generation fixes.
583 o Object identifiers corrected and added.
584 o Add assembler BN routines for IA64.
585 o Add support for OS/390 Unix, UnixWare with gcc, OpenUNIX 8,
586 MIPS Linux; shared library support for Irix, HP-UX.
587 o Add crypto accelerator support for AEP, Baltimore SureWare,
588 Broadcom and Cryptographic Appliance's keyserver
589 [in 0.9.6c-engine release].
591 Major changes between OpenSSL 0.9.6a and OpenSSL 0.9.6b [9 Jul 2001]:
593 o Security fix: PRNG improvements.
594 o Security fix: RSA OAEP check.
595 o Security fix: Reinsert and fix countermeasure to Bleichbacher's
597 o MIPS bug fix in BIGNUM.
598 o Bug fix in "openssl enc".
599 o Bug fix in X.509 printing routine.
600 o Bug fix in DSA verification routine and DSA S/MIME verification.
601 o Bug fix to make PRNG thread-safe.
602 o Bug fix in RAND_file_name().
603 o Bug fix in compatibility mode trust settings.
604 o Bug fix in blowfish EVP.
605 o Increase default size for BIO buffering filter.
606 o Compatibility fixes in some scripts.
608 Major changes between OpenSSL 0.9.6 and OpenSSL 0.9.6a [5 Apr 2001]:
610 o Security fix: change behavior of OpenSSL to avoid using
611 environment variables when running as root.
612 o Security fix: check the result of RSA-CRT to reduce the
613 possibility of deducing the private key from an incorrectly
614 calculated signature.
615 o Security fix: prevent Bleichenbacher's DSA attack.
616 o Security fix: Zero the premaster secret after deriving the
617 master secret in DH ciphersuites.
618 o Reimplement SSL_peek(), which had various problems.
619 o Compatibility fix: the function des_encrypt() renamed to
620 des_encrypt1() to avoid clashes with some Unixen libc.
621 o Bug fixes for Win32, HP/UX and Irix.
622 o Bug fixes in BIGNUM, SSL, PKCS#7, PKCS#12, X.509, CONF and
623 memory checking routines.
624 o Bug fixes for RSA operations in threaded environments.
625 o Bug fixes in misc. openssl applications.
626 o Remove a few potential memory leaks.
627 o Add tighter checks of BIGNUM routines.
628 o Shared library support has been reworked for generality.
629 o More documentation.
630 o New function BN_rand_range().
631 o Add "-rand" option to openssl s_client and s_server.
633 Major changes between OpenSSL 0.9.5a and OpenSSL 0.9.6 [10 Oct 2000]:
635 o Some documentation for BIO and SSL libraries.
636 o Enhanced chain verification using key identifiers.
637 o New sign and verify options to 'dgst' application.
638 o Support for DER and PEM encoded messages in 'smime' application.
639 o New 'rsautl' application, low level RSA utility.
641 o Bugfix for SSL rollback padding check.
642 o Support for external crypto devices [1].
643 o Enhanced EVP interface.
645 [1] The support for external crypto devices is currently a separate
646 distribution. See the file README.ENGINE.
648 Major changes between OpenSSL 0.9.5 and OpenSSL 0.9.5a [1 Apr 2000]:
650 o Bug fixes for Win32, SuSE Linux, NeXTSTEP and FreeBSD 2.2.8
651 o Shared library support for HPUX and Solaris-gcc
652 o Support of Linux/IA64
653 o Assembler support for Mingw32
654 o New 'rand' application
655 o New way to check for existence of algorithms from scripts
657 Major changes between OpenSSL 0.9.4 and OpenSSL 0.9.5 [25 May 2000]:
659 o S/MIME support in new 'smime' command
660 o Documentation for the OpenSSL command line application
661 o Automation of 'req' application
662 o Fixes to make s_client, s_server work under Windows
663 o Support for multiple fieldnames in SPKACs
664 o New SPKAC command line utilty and associated library functions
665 o Options to allow passwords to be obtained from various sources
666 o New public key PEM format and options to handle it
667 o Many other fixes and enhancements to command line utilities
668 o Usable certificate chain verification
669 o Certificate purpose checking
670 o Certificate trust settings
671 o Support of authority information access extension
672 o Extensions in certificate requests
673 o Simplified X509 name and attribute routines
674 o Initial (incomplete) support for international character sets
675 o New DH_METHOD, DSA_METHOD and enhanced RSA_METHOD
676 o Read only memory BIOs and simplified creation function
677 o TLS/SSL protocol bugfixes: Accept TLS 'client hello' in SSL 3.0
678 record; allow fragmentation and interleaving of handshake and other
680 o TLS/SSL code now "tolerates" MS SGC
681 o Work around for Netscape client certificate hang bug
682 o RSA_NULL option that removes RSA patent code but keeps other
684 o Memory leak detection now allows applications to add extra information
685 via a per-thread stack
686 o PRNG robustness improved
688 o BIGNUM library bug fixes
689 o Faster DSA parameter generation
690 o Enhanced support for Alpha Linux
691 o Experimental MacOS support
693 Major changes between OpenSSL 0.9.3 and OpenSSL 0.9.4 [9 Aug 1999]:
695 o Transparent support for PKCS#8 format private keys: these are used
696 by several software packages and are more secure than the standard
698 o PKCS#5 v2.0 implementation
699 o Password callbacks have a new void * argument for application data
700 o Avoid various memory leaks
701 o New pipe-like BIO that allows using the SSL library when actual I/O
702 must be handled by the application (BIO pair)
704 Major changes between OpenSSL 0.9.2b and OpenSSL 0.9.3 [24 May 1999]:
705 o Lots of enhancements and cleanups to the Configuration mechanism
706 o RSA OEAP related fixes
707 o Added `openssl ca -revoke' option for revoking a certificate
708 o Source cleanups: const correctness, type-safe stacks and ASN.1 SETs
709 o Source tree cleanups: removed lots of obsolete files
710 o Thawte SXNet, certificate policies and CRL distribution points
712 o Preliminary (experimental) S/MIME support
713 o Support for ASN.1 UTF8String and VisibleString
714 o Full integration of PKCS#12 code
715 o Sparc assembler bignum implementation, optimized hash functions
716 o Option to disable selected ciphers
718 Major changes between OpenSSL 0.9.1c and OpenSSL 0.9.2b [22 Mar 1999]:
719 o Fixed a security hole related to session resumption
720 o Fixed RSA encryption routines for the p < q case
721 o "ALL" in cipher lists now means "everything except NULL ciphers"
722 o Support for Triple-DES CBCM cipher
723 o Support of Optimal Asymmetric Encryption Padding (OAEP) for RSA
724 o First support for new TLSv1 ciphers
725 o Added a few new BIOs (syslog BIO, reliable BIO)
726 o Extended support for DSA certificate/keys.
727 o Extended support for Certificate Signing Requests (CSR)
728 o Initial support for X.509v3 extensions
729 o Extended support for compression inside the SSL record layer
730 o Overhauled Win32 builds
731 o Cleanups and fixes to the Big Number (BN) library
732 o Support for ASN.1 GeneralizedTime
733 o Splitted ASN.1 SETs from SEQUENCEs
734 o ASN1 and PEM support for Netscape Certificate Sequences
735 o Overhauled Perl interface
736 o Lots of source tree cleanups.
737 o Lots of memory leak fixes.
740 Major changes between SSLeay 0.9.0b and OpenSSL 0.9.1c [23 Dec 1998]:
741 o Integration of the popular NO_RSA/NO_DSA patches
742 o Initial support for compression inside the SSL record layer
743 o Added BIO proxy and filtering functionality
744 o Extended Big Number (BN) library
745 o Added RIPE MD160 message digest
746 o Addeed support for RC2/64bit cipher
747 o Extended ASN.1 parser routines
748 o Adjustations of the source tree for CVS
749 o Support for various new platforms