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 1.0.1f and OpenSSL 1.0.1g [under development]
10 o Add TLS padding extension workaround for broken servers.
12 Known issues in OpenSL 1.0.1f
14 o Warning when compiling s23_clnt.c on Windows. Fixed in 1.0.1g-dev.
15 o On Windows 8 GetVersion is deprecated: no workaround yet.
17 Major changes between OpenSSL 1.0.1e and OpenSSL 1.0.1f [6 Jan 2014]
19 o Don't include gmt_unix_time in TLS server and client random values
20 o Fix for TLS record tampering bug CVE-2013-4353
21 o Fix for TLS version checking bug CVE-2013-6449
22 o Fix for DTLS retransmission bug CVE-2013-6450
24 Major changes between OpenSSL 1.0.1d and OpenSSL 1.0.1e [11 Feb 2013]:
26 o Corrected fix for CVE-2013-0169
28 Major changes between OpenSSL 1.0.1c and OpenSSL 1.0.1d [4 Feb 2013]:
30 o Fix renegotiation in TLS 1.1, 1.2 by using the correct TLS version.
31 o Include the fips configuration module.
32 o Fix OCSP bad key DoS attack CVE-2013-0166
33 o Fix for SSL/TLS/DTLS CBC plaintext recovery attack CVE-2013-0169
34 o Fix for TLS AESNI record handling flaw CVE-2012-2686
36 Major changes between OpenSSL 1.0.1b and OpenSSL 1.0.1c [10 May 2012]:
38 o Fix TLS/DTLS record length checking bug CVE-2012-2333
39 o Don't attempt to use non-FIPS composite ciphers in FIPS mode.
41 Major changes between OpenSSL 1.0.1a and OpenSSL 1.0.1b [26 Apr 2012]:
43 o Fix compilation error on non-x86 platforms.
44 o Make FIPS capable OpenSSL ciphers work in non-FIPS mode.
45 o Fix SSL_OP_NO_TLSv1_1 clash with SSL_OP_ALL in OpenSSL 1.0.0
47 Major changes between OpenSSL 1.0.1 and OpenSSL 1.0.1a [19 Apr 2012]:
49 o Fix for ASN1 overflow bug CVE-2012-2110
50 o Workarounds for some servers that hang on long client hellos.
51 o Fix SEGV in AES code.
53 Major changes between OpenSSL 1.0.0h and OpenSSL 1.0.1 [14 Mar 2012]:
55 o TLS/DTLS heartbeat support.
57 o RFC 5705 TLS key material exporter.
58 o RFC 5764 DTLS-SRTP negotiation.
59 o Next Protocol Negotiation.
60 o PSS signatures in certificates, requests and CRLs.
61 o Support for password based recipient info for CMS.
62 o Support TLS v1.2 and TLS v1.1.
63 o Preliminary FIPS capability for unvalidated 2.0 FIPS module.
66 Major changes between OpenSSL 1.0.0j and OpenSSL 1.0.0k [5 Feb 2013]:
68 o Fix for SSL/TLS/DTLS CBC plaintext recovery attack CVE-2013-0169
69 o Fix OCSP bad key DoS attack CVE-2013-0166
71 Major changes between OpenSSL 1.0.0i and OpenSSL 1.0.0j [10 May 2012]:
73 o Fix DTLS record length checking bug CVE-2012-2333
75 Major changes between OpenSSL 1.0.0h and OpenSSL 1.0.0i [19 Apr 2012]:
77 o Fix for ASN1 overflow bug CVE-2012-2110
79 Major changes between OpenSSL 1.0.0g and OpenSSL 1.0.0h [12 Mar 2012]:
81 o Fix for CMS/PKCS#7 MMA CVE-2012-0884
82 o Corrected fix for CVE-2011-4619
85 Major changes between OpenSSL 1.0.0f and OpenSSL 1.0.0g [18 Jan 2012]:
87 o Fix for DTLS DoS issue CVE-2012-0050
89 Major changes between OpenSSL 1.0.0e and OpenSSL 1.0.0f [4 Jan 2012]:
91 o Fix for DTLS plaintext recovery attack CVE-2011-4108
92 o Clear block padding bytes of SSL 3.0 records CVE-2011-4576
93 o Only allow one SGC handshake restart for SSL/TLS CVE-2011-4619
94 o Check parameters are not NULL in GOST ENGINE CVE-2012-0027
95 o Check for malformed RFC3779 data CVE-2011-4577
97 Major changes between OpenSSL 1.0.0d and OpenSSL 1.0.0e [6 Sep 2011]:
99 o Fix for CRL vulnerability issue CVE-2011-3207
100 o Fix for ECDH crashes CVE-2011-3210
101 o Protection against EC timing attacks.
102 o Support ECDH ciphersuites for certificates using SHA2 algorithms.
103 o Various DTLS fixes.
105 Major changes between OpenSSL 1.0.0c and OpenSSL 1.0.0d [8 Feb 2011]:
107 o Fix for security issue CVE-2011-0014
109 Major changes between OpenSSL 1.0.0b and OpenSSL 1.0.0c [2 Dec 2010]:
111 o Fix for security issue CVE-2010-4180
112 o Fix for CVE-2010-4252
113 o Fix mishandling of absent EC point format extension.
114 o Fix various platform compilation issues.
115 o Corrected fix for security issue CVE-2010-3864.
117 Major changes between OpenSSL 1.0.0a and OpenSSL 1.0.0b [16 Nov 2010]:
119 o Fix for security issue CVE-2010-3864.
120 o Fix for CVE-2010-2939
121 o Fix WIN32 build system for GOST ENGINE.
123 Major changes between OpenSSL 1.0.0 and OpenSSL 1.0.0a [1 Jun 2010]:
125 o Fix for security issue CVE-2010-1633.
126 o GOST MAC and CFB fixes.
128 Major changes between OpenSSL 0.9.8n and OpenSSL 1.0.0 [29 Mar 2010]:
130 o RFC3280 path validation: sufficient to process PKITS tests.
131 o Integrated support for PVK files and keyblobs.
132 o Change default private key format to PKCS#8.
133 o CMS support: able to process all examples in RFC4134
134 o Streaming ASN1 encode support for PKCS#7 and CMS.
135 o Multiple signer and signer add support for PKCS#7 and CMS.
136 o ASN1 printing support.
137 o Whirlpool hash algorithm added.
138 o RFC3161 time stamp support.
139 o New generalised public key API supporting ENGINE based algorithms.
140 o New generalised public key API utilities.
141 o New ENGINE supporting GOST algorithms.
142 o SSL/TLS GOST ciphersuite support.
143 o PKCS#7 and CMS GOST support.
144 o RFC4279 PSK ciphersuite support.
145 o Supported points format extension for ECC ciphersuites.
146 o ecdsa-with-SHA224/256/384/512 signature types.
147 o dsa-with-SHA224 and dsa-with-SHA256 signature types.
148 o Opaque PRF Input TLS extension support.
149 o Updated time routines to avoid OS limitations.
151 Major changes between OpenSSL 0.9.8x and OpenSSL 0.9.8y [5 Feb 2013]:
153 o Fix for SSL/TLS/DTLS CBC plaintext recovery attack CVE-2013-0169
154 o Fix OCSP bad key DoS attack CVE-2013-0166
156 Major changes between OpenSSL 0.9.8w and OpenSSL 0.9.8x [10 May 2012]:
158 o Fix DTLS record length checking bug CVE-2012-2333
160 Major changes between OpenSSL 0.9.8v and OpenSSL 0.9.8w [23 Apr 2012]:
162 o Fix for CVE-2012-2131 (corrected fix for 0.9.8 and CVE-2012-2110)
164 Major changes between OpenSSL 0.9.8u and OpenSSL 0.9.8v [19 Apr 2012]:
166 o Fix for ASN1 overflow bug CVE-2012-2110
168 Major changes between OpenSSL 0.9.8t and OpenSSL 0.9.8u [12 Mar 2012]:
170 o Fix for CMS/PKCS#7 MMA CVE-2012-0884
171 o Corrected fix for CVE-2011-4619
172 o Various DTLS fixes.
174 Major changes between OpenSSL 0.9.8s and OpenSSL 0.9.8t [18 Jan 2012]:
176 o Fix for DTLS DoS issue CVE-2012-0050
178 Major changes between OpenSSL 0.9.8r and OpenSSL 0.9.8s [4 Jan 2012]:
180 o Fix for DTLS plaintext recovery attack CVE-2011-4108
181 o Fix policy check double free error CVE-2011-4109
182 o Clear block padding bytes of SSL 3.0 records CVE-2011-4576
183 o Only allow one SGC handshake restart for SSL/TLS CVE-2011-4619
184 o Check for malformed RFC3779 data CVE-2011-4577
186 Major changes between OpenSSL 0.9.8q and OpenSSL 0.9.8r [8 Feb 2011]:
188 o Fix for security issue CVE-2011-0014
190 Major changes between OpenSSL 0.9.8p and OpenSSL 0.9.8q [2 Dec 2010]:
192 o Fix for security issue CVE-2010-4180
193 o Fix for CVE-2010-4252
195 Major changes between OpenSSL 0.9.8o and OpenSSL 0.9.8p [16 Nov 2010]:
197 o Fix for security issue CVE-2010-3864.
199 Major changes between OpenSSL 0.9.8n and OpenSSL 0.9.8o [1 Jun 2010]:
201 o Fix for security issue CVE-2010-0742.
202 o Various DTLS fixes.
203 o Recognise SHA2 certificates if only SSL algorithms added.
204 o Fix for no-rc4 compilation.
205 o Chil ENGINE unload workaround.
207 Major changes between OpenSSL 0.9.8m and OpenSSL 0.9.8n [24 Mar 2010]:
209 o CFB cipher definition fixes.
210 o Fix security issues CVE-2010-0740 and CVE-2010-0433.
212 Major changes between OpenSSL 0.9.8l and OpenSSL 0.9.8m [25 Feb 2010]:
214 o Cipher definition fixes.
215 o Workaround for slow RAND_poll() on some WIN32 versions.
216 o Remove MD2 from algorithm tables.
217 o SPKAC handling fixes.
218 o Support for RFC5746 TLS renegotiation extension.
219 o Compression memory leak fixed.
220 o Compression session resumption fixed.
221 o Ticket and SNI coexistence fixes.
222 o Many fixes to DTLS handling.
224 Major changes between OpenSSL 0.9.8k and OpenSSL 0.9.8l [5 Nov 2009]:
226 o Temporary work around for CVE-2009-3555: disable renegotiation.
228 Major changes between OpenSSL 0.9.8j and OpenSSL 0.9.8k [25 Mar 2009]:
230 o Fix various build issues.
231 o Fix security issues (CVE-2009-0590, CVE-2009-0591, CVE-2009-0789)
233 Major changes between OpenSSL 0.9.8i and OpenSSL 0.9.8j [7 Jan 2009]:
235 o Fix security issue (CVE-2008-5077)
236 o Merge FIPS 140-2 branch code.
238 Major changes between OpenSSL 0.9.8g and OpenSSL 0.9.8h [28 May 2008]:
240 o CryptoAPI ENGINE support.
241 o Various precautionary measures.
242 o Fix for bugs affecting certificate request creation.
243 o Support for local machine keyset attribute in PKCS#12 files.
245 Major changes between OpenSSL 0.9.8f and OpenSSL 0.9.8g [19 Oct 2007]:
247 o Backport of CMS functionality to 0.9.8.
248 o Fixes for bugs introduced with 0.9.8f.
250 Major changes between OpenSSL 0.9.8e and OpenSSL 0.9.8f [11 Oct 2007]:
252 o Add gcc 4.2 support.
253 o Add support for AES and SSE2 assembly lanugauge optimization
255 o Support for RFC4507bis and server name extensions if explicitly
256 selected at compile time.
258 o RFC4507bis support.
259 o TLS Extensions support.
261 Major changes between OpenSSL 0.9.8d and OpenSSL 0.9.8e [23 Feb 2007]:
263 o Various ciphersuite selection fixes.
266 Major changes between OpenSSL 0.9.8c and OpenSSL 0.9.8d [28 Sep 2006]:
268 o Introduce limits to prevent malicious key DoS (CVE-2006-2940)
269 o Fix security issues (CVE-2006-2937, CVE-2006-3737, CVE-2006-4343)
270 o Changes to ciphersuite selection algorithm
272 Major changes between OpenSSL 0.9.8b and OpenSSL 0.9.8c [5 Sep 2006]:
274 o Fix Daniel Bleichenbacher forged signature attack, CVE-2006-4339
275 o New cipher Camellia
277 Major changes between OpenSSL 0.9.8a and OpenSSL 0.9.8b [4 May 2006]:
279 o Cipher string fixes.
280 o Fixes for VC++ 2005.
281 o Updated ECC cipher suite support.
282 o New functions EVP_CIPHER_CTX_new() and EVP_CIPHER_CTX_free().
283 o Zlib compression usage fixes.
284 o Built in dynamic engine compilation support on Win32.
285 o Fixes auto dynamic engine loading in Win32.
287 Major changes between OpenSSL 0.9.8 and OpenSSL 0.9.8a [11 Oct 2005]:
289 o Fix potential SSL 2.0 rollback, CVE-2005-2969
290 o Extended Windows CE support
292 Major changes between OpenSSL 0.9.7g and OpenSSL 0.9.8 [5 Jul 2005]:
294 o Major work on the BIGNUM library for higher efficiency and to
295 make operations more streamlined and less contradictory. This
296 is the result of a major audit of the BIGNUM library.
297 o Addition of BIGNUM functions for fields GF(2^m) and NIST
298 curves, to support the Elliptic Crypto functions.
299 o Major work on Elliptic Crypto; ECDH and ECDSA added, including
300 the use through EVP, X509 and ENGINE.
301 o New ASN.1 mini-compiler that's usable through the OpenSSL
303 o Added support for ASN.1 indefinite length constructed encoding.
304 o New PKCS#12 'medium level' API to manipulate PKCS#12 files.
305 o Complete rework of shared library construction and linking
306 programs with shared or static libraries, through a separate
308 o Rework of the passing of parameters from one Makefile to another.
309 o Changed ENGINE framework to load dynamic engine modules
310 automatically from specifically given directories.
311 o New structure and ASN.1 functions for CertificatePair.
312 o Changed the ZLIB compression method to be stateful.
313 o Changed the key-generation and primality testing "progress"
314 mechanism to take a structure that contains the ticker
315 function and an argument.
316 o New engine module: GMP (performs private key exponentiation).
317 o New engine module: VIA PadLOck ACE extension in VIA C3
319 o Added support for IPv6 addresses in certificate extensions.
320 See RFC 1884, section 2.2.
321 o Added support for certificate policy mappings, policy
322 constraints and name constraints.
323 o Added support for multi-valued AVAs in the OpenSSL
325 o Added support for multiple certificates with the same subject
326 in the 'openssl ca' index file.
327 o Make it possible to create self-signed certificates using
328 'openssl ca -selfsign'.
329 o Make it possible to generate a serial number file with
330 'openssl ca -create_serial'.
331 o New binary search functions with extended functionality.
333 o New STORE structure and library to provide an interface to all
334 sorts of data repositories. Supports storage of public and
335 private keys, certificates, CRLs, numbers and arbitrary blobs.
336 This library is unfortunately unfinished and unused withing
338 o New control functions for the error stack.
339 o Changed the PKCS#7 library to support one-pass S/MIME
341 o Added the possibility to compile without old deprecated
342 functionality with the OPENSSL_NO_DEPRECATED macro or the
343 'no-deprecated' argument to the config and Configure scripts.
344 o Constification of all ASN.1 conversion functions, and other
346 o Improved platform support for PowerPC.
347 o New FIPS 180-2 algorithms (SHA-224, -256, -384 and -512).
348 o New X509_VERIFY_PARAM structure to support parametrisation
349 of X.509 path validation.
350 o Major overhaul of RC4 performance on Intel P4, IA-64 and
352 o Changed the Configure script to have some algorithms disabled
353 by default. Those can be explicitely enabled with the new
354 argument form 'enable-xxx'.
355 o Change the default digest in 'openssl' commands from MD5 to
357 o Added support for DTLS.
358 o New BIGNUM blinding.
359 o Added support for the RSA-PSS encryption scheme
360 o Added support for the RSA X.931 padding.
361 o Added support for BSD sockets on NetWare.
362 o Added support for files larger than 2GB.
363 o Added initial support for Win64.
364 o Added alternate pkg-config files.
366 Major changes between OpenSSL 0.9.7l and OpenSSL 0.9.7m [23 Feb 2007]:
368 o FIPS 1.1.1 module linking.
369 o Various ciphersuite selection fixes.
371 Major changes between OpenSSL 0.9.7k and OpenSSL 0.9.7l [28 Sep 2006]:
373 o Introduce limits to prevent malicious key DoS (CVE-2006-2940)
374 o Fix security issues (CVE-2006-2937, CVE-2006-3737, CVE-2006-4343)
376 Major changes between OpenSSL 0.9.7j and OpenSSL 0.9.7k [5 Sep 2006]:
378 o Fix Daniel Bleichenbacher forged signature attack, CVE-2006-4339
380 Major changes between OpenSSL 0.9.7i and OpenSSL 0.9.7j [4 May 2006]:
382 o Visual C++ 2005 fixes.
383 o Update Windows build system for FIPS.
385 Major changes between OpenSSL 0.9.7h and OpenSSL 0.9.7i [14 Oct 2005]:
387 o Give EVP_MAX_MD_SIZE it's old value, except for a FIPS build.
389 Major changes between OpenSSL 0.9.7g and OpenSSL 0.9.7h [11 Oct 2005]:
391 o Fix SSL 2.0 Rollback, CVE-2005-2969
392 o Allow use of fixed-length exponent on DSA signing
393 o Default fixed-window RSA, DSA, DH private-key operations
395 Major changes between OpenSSL 0.9.7f and OpenSSL 0.9.7g [11 Apr 2005]:
397 o More compilation issues fixed.
398 o Adaptation to more modern Kerberos API.
399 o Enhanced or corrected configuration for Solaris64, Mingw and Cygwin.
400 o Enhanced x86_64 assembler BIGNUM module.
401 o More constification.
402 o Added processing of proxy certificates (RFC 3820).
404 Major changes between OpenSSL 0.9.7e and OpenSSL 0.9.7f [22 Mar 2005]:
406 o Several compilation issues fixed.
407 o Many memory allocation failure checks added.
408 o Improved comparison of X509 Name type.
409 o Mandatory basic checks on certificates.
410 o Performance improvements.
412 Major changes between OpenSSL 0.9.7d and OpenSSL 0.9.7e [25 Oct 2004]:
414 o Fix race condition in CRL checking code.
415 o Fixes to PKCS#7 (S/MIME) code.
417 Major changes between OpenSSL 0.9.7c and OpenSSL 0.9.7d [17 Mar 2004]:
419 o Security: Fix Kerberos ciphersuite SSL/TLS handshaking bug
420 o Security: Fix null-pointer assignment in do_change_cipher_spec()
421 o Allow multiple active certificates with same subject in CA index
422 o Multiple X509 verification fixes
423 o Speed up HMAC and other operations
425 Major changes between OpenSSL 0.9.7b and OpenSSL 0.9.7c [30 Sep 2003]:
427 o Security: fix various ASN1 parsing bugs.
428 o New -ignore_err option to OCSP utility.
429 o Various interop and bug fixes in S/MIME code.
430 o SSL/TLS protocol fix for unrequested client certificates.
432 Major changes between OpenSSL 0.9.7a and OpenSSL 0.9.7b [10 Apr 2003]:
434 o Security: counter the Klima-Pokorny-Rosa extension of
435 Bleichbacher's attack
436 o Security: make RSA blinding default.
437 o Configuration: Irix fixes, AIX fixes, better mingw support.
438 o Support for new platforms: linux-ia64-ecc.
439 o Build: shared library support fixes.
440 o ASN.1: treat domainComponent correctly.
441 o Documentation: fixes and additions.
443 Major changes between OpenSSL 0.9.7 and OpenSSL 0.9.7a [19 Feb 2003]:
445 o Security: Important security related bugfixes.
446 o Enhanced compatibility with MIT Kerberos.
447 o Can be built without the ENGINE framework.
448 o IA32 assembler enhancements.
449 o Support for new platforms: FreeBSD/IA64 and FreeBSD/Sparc64.
450 o Configuration: the no-err option now works properly.
451 o SSL/TLS: now handles manual certificate chain building.
452 o SSL/TLS: certain session ID malfunctions corrected.
454 Major changes between OpenSSL 0.9.6 and OpenSSL 0.9.7 [30 Dec 2002]:
456 o New library section OCSP.
457 o Complete rewrite of ASN1 code.
458 o CRL checking in verify code and openssl utility.
459 o Extension copying in 'ca' utility.
460 o Flexible display options in 'ca' utility.
461 o Provisional support for international characters with UTF8.
462 o Support for external crypto devices ('engine') is no longer
463 a separate distribution.
464 o New elliptic curve library section.
465 o New AES (Rijndael) library section.
466 o Support for new platforms: Windows CE, Tandem OSS, A/UX, AIX 64-bit,
467 Linux x86_64, Linux 64-bit on Sparc v9
468 o Extended support for some platforms: VxWorks
469 o Enhanced support for shared libraries.
470 o Now only builds PIC code when shared library support is requested.
471 o Support for pkg-config.
472 o Lots of new manuals.
473 o Makes symbolic links to or copies of manuals to cover all described
475 o Change DES API to clean up the namespace (some applications link also
476 against libdes providing similar functions having the same name).
477 Provide macros for backward compatibility (will be removed in the
479 o Unify handling of cryptographic algorithms (software and engine)
480 to be available via EVP routines for asymmetric and symmetric ciphers.
481 o NCONF: new configuration handling routines.
482 o Change API to use more 'const' modifiers to improve error checking
484 o Finally remove references to RSAref.
485 o Reworked parts of the BIGNUM code.
486 o Support for new engines: Broadcom ubsec, Accelerated Encryption
487 Processing, IBM 4758.
488 o A few new engines added in the demos area.
489 o Extended and corrected OID (object identifier) table.
490 o PRNG: query at more locations for a random device, automatic query for
491 EGD style random sources at several locations.
492 o SSL/TLS: allow optional cipher choice according to server's preference.
493 o SSL/TLS: allow server to explicitly set new session ids.
494 o SSL/TLS: support Kerberos cipher suites (RFC2712).
495 Only supports MIT Kerberos for now.
496 o SSL/TLS: allow more precise control of renegotiations and sessions.
497 o SSL/TLS: add callback to retrieve SSL/TLS messages.
498 o SSL/TLS: support AES cipher suites (RFC3268).
500 Major changes between OpenSSL 0.9.6j and OpenSSL 0.9.6k [30 Sep 2003]:
502 o Security: fix various ASN1 parsing bugs.
503 o SSL/TLS protocol fix for unrequested client certificates.
505 Major changes between OpenSSL 0.9.6i and OpenSSL 0.9.6j [10 Apr 2003]:
507 o Security: counter the Klima-Pokorny-Rosa extension of
508 Bleichbacher's attack
509 o Security: make RSA blinding default.
510 o Build: shared library support fixes.
512 Major changes between OpenSSL 0.9.6h and OpenSSL 0.9.6i [19 Feb 2003]:
514 o Important security related bugfixes.
516 Major changes between OpenSSL 0.9.6g and OpenSSL 0.9.6h [5 Dec 2002]:
518 o New configuration targets for Tandem OSS and A/UX.
519 o New OIDs for Microsoft attributes.
520 o Better handling of SSL session caching.
521 o Better comparison of distinguished names.
522 o Better handling of shared libraries in a mixed GNU/non-GNU environment.
523 o Support assembler code with Borland C.
524 o Fixes for length problems.
525 o Fixes for uninitialised variables.
526 o Fixes for memory leaks, some unusual crashes and some race conditions.
527 o Fixes for smaller building problems.
528 o Updates of manuals, FAQ and other instructive documents.
530 Major changes between OpenSSL 0.9.6f and OpenSSL 0.9.6g [9 Aug 2002]:
532 o Important building fixes on Unix.
534 Major changes between OpenSSL 0.9.6e and OpenSSL 0.9.6f [8 Aug 2002]:
536 o Various important bugfixes.
538 Major changes between OpenSSL 0.9.6d and OpenSSL 0.9.6e [30 Jul 2002]:
540 o Important security related bugfixes.
541 o Various SSL/TLS library bugfixes.
543 Major changes between OpenSSL 0.9.6c and OpenSSL 0.9.6d [9 May 2002]:
545 o Various SSL/TLS library bugfixes.
546 o Fix DH parameter generation for 'non-standard' generators.
548 Major changes between OpenSSL 0.9.6b and OpenSSL 0.9.6c [21 Dec 2001]:
550 o Various SSL/TLS library bugfixes.
551 o BIGNUM library fixes.
552 o RSA OAEP and random number generation fixes.
553 o Object identifiers corrected and added.
554 o Add assembler BN routines for IA64.
555 o Add support for OS/390 Unix, UnixWare with gcc, OpenUNIX 8,
556 MIPS Linux; shared library support for Irix, HP-UX.
557 o Add crypto accelerator support for AEP, Baltimore SureWare,
558 Broadcom and Cryptographic Appliance's keyserver
559 [in 0.9.6c-engine release].
561 Major changes between OpenSSL 0.9.6a and OpenSSL 0.9.6b [9 Jul 2001]:
563 o Security fix: PRNG improvements.
564 o Security fix: RSA OAEP check.
565 o Security fix: Reinsert and fix countermeasure to Bleichbacher's
567 o MIPS bug fix in BIGNUM.
568 o Bug fix in "openssl enc".
569 o Bug fix in X.509 printing routine.
570 o Bug fix in DSA verification routine and DSA S/MIME verification.
571 o Bug fix to make PRNG thread-safe.
572 o Bug fix in RAND_file_name().
573 o Bug fix in compatibility mode trust settings.
574 o Bug fix in blowfish EVP.
575 o Increase default size for BIO buffering filter.
576 o Compatibility fixes in some scripts.
578 Major changes between OpenSSL 0.9.6 and OpenSSL 0.9.6a [5 Apr 2001]:
580 o Security fix: change behavior of OpenSSL to avoid using
581 environment variables when running as root.
582 o Security fix: check the result of RSA-CRT to reduce the
583 possibility of deducing the private key from an incorrectly
584 calculated signature.
585 o Security fix: prevent Bleichenbacher's DSA attack.
586 o Security fix: Zero the premaster secret after deriving the
587 master secret in DH ciphersuites.
588 o Reimplement SSL_peek(), which had various problems.
589 o Compatibility fix: the function des_encrypt() renamed to
590 des_encrypt1() to avoid clashes with some Unixen libc.
591 o Bug fixes for Win32, HP/UX and Irix.
592 o Bug fixes in BIGNUM, SSL, PKCS#7, PKCS#12, X.509, CONF and
593 memory checking routines.
594 o Bug fixes for RSA operations in threaded environments.
595 o Bug fixes in misc. openssl applications.
596 o Remove a few potential memory leaks.
597 o Add tighter checks of BIGNUM routines.
598 o Shared library support has been reworked for generality.
599 o More documentation.
600 o New function BN_rand_range().
601 o Add "-rand" option to openssl s_client and s_server.
603 Major changes between OpenSSL 0.9.5a and OpenSSL 0.9.6 [10 Oct 2000]:
605 o Some documentation for BIO and SSL libraries.
606 o Enhanced chain verification using key identifiers.
607 o New sign and verify options to 'dgst' application.
608 o Support for DER and PEM encoded messages in 'smime' application.
609 o New 'rsautl' application, low level RSA utility.
611 o Bugfix for SSL rollback padding check.
612 o Support for external crypto devices [1].
613 o Enhanced EVP interface.
615 [1] The support for external crypto devices is currently a separate
616 distribution. See the file README.ENGINE.
618 Major changes between OpenSSL 0.9.5 and OpenSSL 0.9.5a [1 Apr 2000]:
620 o Bug fixes for Win32, SuSE Linux, NeXTSTEP and FreeBSD 2.2.8
621 o Shared library support for HPUX and Solaris-gcc
622 o Support of Linux/IA64
623 o Assembler support for Mingw32
624 o New 'rand' application
625 o New way to check for existence of algorithms from scripts
627 Major changes between OpenSSL 0.9.4 and OpenSSL 0.9.5 [25 May 2000]:
629 o S/MIME support in new 'smime' command
630 o Documentation for the OpenSSL command line application
631 o Automation of 'req' application
632 o Fixes to make s_client, s_server work under Windows
633 o Support for multiple fieldnames in SPKACs
634 o New SPKAC command line utilty and associated library functions
635 o Options to allow passwords to be obtained from various sources
636 o New public key PEM format and options to handle it
637 o Many other fixes and enhancements to command line utilities
638 o Usable certificate chain verification
639 o Certificate purpose checking
640 o Certificate trust settings
641 o Support of authority information access extension
642 o Extensions in certificate requests
643 o Simplified X509 name and attribute routines
644 o Initial (incomplete) support for international character sets
645 o New DH_METHOD, DSA_METHOD and enhanced RSA_METHOD
646 o Read only memory BIOs and simplified creation function
647 o TLS/SSL protocol bugfixes: Accept TLS 'client hello' in SSL 3.0
648 record; allow fragmentation and interleaving of handshake and other
650 o TLS/SSL code now "tolerates" MS SGC
651 o Work around for Netscape client certificate hang bug
652 o RSA_NULL option that removes RSA patent code but keeps other
654 o Memory leak detection now allows applications to add extra information
655 via a per-thread stack
656 o PRNG robustness improved
658 o BIGNUM library bug fixes
659 o Faster DSA parameter generation
660 o Enhanced support for Alpha Linux
661 o Experimental MacOS support
663 Major changes between OpenSSL 0.9.3 and OpenSSL 0.9.4 [9 Aug 1999]:
665 o Transparent support for PKCS#8 format private keys: these are used
666 by several software packages and are more secure than the standard
668 o PKCS#5 v2.0 implementation
669 o Password callbacks have a new void * argument for application data
670 o Avoid various memory leaks
671 o New pipe-like BIO that allows using the SSL library when actual I/O
672 must be handled by the application (BIO pair)
674 Major changes between OpenSSL 0.9.2b and OpenSSL 0.9.3 [24 May 1999]:
675 o Lots of enhancements and cleanups to the Configuration mechanism
676 o RSA OEAP related fixes
677 o Added `openssl ca -revoke' option for revoking a certificate
678 o Source cleanups: const correctness, type-safe stacks and ASN.1 SETs
679 o Source tree cleanups: removed lots of obsolete files
680 o Thawte SXNet, certificate policies and CRL distribution points
682 o Preliminary (experimental) S/MIME support
683 o Support for ASN.1 UTF8String and VisibleString
684 o Full integration of PKCS#12 code
685 o Sparc assembler bignum implementation, optimized hash functions
686 o Option to disable selected ciphers
688 Major changes between OpenSSL 0.9.1c and OpenSSL 0.9.2b [22 Mar 1999]:
689 o Fixed a security hole related to session resumption
690 o Fixed RSA encryption routines for the p < q case
691 o "ALL" in cipher lists now means "everything except NULL ciphers"
692 o Support for Triple-DES CBCM cipher
693 o Support of Optimal Asymmetric Encryption Padding (OAEP) for RSA
694 o First support for new TLSv1 ciphers
695 o Added a few new BIOs (syslog BIO, reliable BIO)
696 o Extended support for DSA certificate/keys.
697 o Extended support for Certificate Signing Requests (CSR)
698 o Initial support for X.509v3 extensions
699 o Extended support for compression inside the SSL record layer
700 o Overhauled Win32 builds
701 o Cleanups and fixes to the Big Number (BN) library
702 o Support for ASN.1 GeneralizedTime
703 o Splitted ASN.1 SETs from SEQUENCEs
704 o ASN1 and PEM support for Netscape Certificate Sequences
705 o Overhauled Perl interface
706 o Lots of source tree cleanups.
707 o Lots of memory leak fixes.
710 Major changes between SSLeay 0.9.0b and OpenSSL 0.9.1c [23 Dec 1998]:
711 o Integration of the popular NO_RSA/NO_DSA patches
712 o Initial support for compression inside the SSL record layer
713 o Added BIO proxy and filtering functionality
714 o Extended Big Number (BN) library
715 o Added RIPE MD160 message digest
716 o Addeed support for RC2/64bit cipher
717 o Extended ASN.1 parser routines
718 o Adjustations of the source tree for CVS
719 o Support for various new platforms