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 1.0.0m and OpenSSL 1.0.0n [6 Aug 2014]
10 o Fix for CVE-2014-3510
11 o Fix for CVE-2014-3507
12 o Fix for CVE-2014-3506
13 o Fix for CVE-2014-3505
14 o Fix for CVE-2014-3509
15 o Fix for CVE-2014-3508
17 Known issues in OpenSSL 1.0.0m:
19 o EAP-FAST and other applications using tls_session_secret_cb
20 wont resume sessions. Fixed in 1.0.0n-dev
21 o Compilation failure of s3_pkt.c on some platforms due to missing
22 <limits.h> include. Fixed in 1.0.0n-dev
24 Major changes between OpenSSL 1.0.0l and OpenSSL 1.0.0m [5 Jun 2014]
26 o Fix for CVE-2014-0224
27 o Fix for CVE-2014-0221
28 o Fix for CVE-2014-0198
29 o Fix for CVE-2014-0195
30 o Fix for CVE-2014-3470
31 o Fix for CVE-2014-0076
32 o Fix for CVE-2010-5298
34 Major changes between OpenSSL 1.0.0k and OpenSSL 1.0.0l [6 Jan 2014]
36 o Fix for DTLS retransmission bug CVE-2013-6450
38 Major changes between OpenSSL 1.0.0j and OpenSSL 1.0.0k [5 Feb 2013]:
40 o Fix for SSL/TLS/DTLS CBC plaintext recovery attack CVE-2013-0169
41 o Fix OCSP bad key DoS attack CVE-2013-0166
43 Major changes between OpenSSL 1.0.0i and OpenSSL 1.0.0j [10 May 2012]:
45 o Fix DTLS record length checking bug CVE-2012-2333
47 Major changes between OpenSSL 1.0.0h and OpenSSL 1.0.0i [19 Apr 2012]:
49 o Fix for ASN1 overflow bug CVE-2012-2110
51 Major changes between OpenSSL 1.0.0g and OpenSSL 1.0.0h [12 Mar 2012]:
53 o Fix for CMS/PKCS#7 MMA CVE-2012-0884
54 o Corrected fix for CVE-2011-4619
57 Major changes between OpenSSL 1.0.0f and OpenSSL 1.0.0g [18 Jan 2012]:
59 o Fix for DTLS DoS issue CVE-2012-0050
61 Major changes between OpenSSL 1.0.0e and OpenSSL 1.0.0f [4 Jan 2012]:
63 o Fix for DTLS plaintext recovery attack CVE-2011-4108
64 o Clear block padding bytes of SSL 3.0 records CVE-2011-4576
65 o Only allow one SGC handshake restart for SSL/TLS CVE-2011-4619
66 o Check parameters are not NULL in GOST ENGINE CVE-2012-0027
67 o Check for malformed RFC3779 data CVE-2011-4577
69 Major changes between OpenSSL 1.0.0d and OpenSSL 1.0.0e [6 Sep 2011]:
71 o Fix for CRL vulnerability issue CVE-2011-3207
72 o Fix for ECDH crashes CVE-2011-3210
73 o Protection against EC timing attacks.
74 o Support ECDH ciphersuites for certificates using SHA2 algorithms.
77 Major changes between OpenSSL 1.0.0c and OpenSSL 1.0.0d [8 Feb 2011]:
79 o Fix for security issue CVE-2011-0014
81 Major changes between OpenSSL 1.0.0b and OpenSSL 1.0.0c [2 Dec 2010]:
83 o Fix for security issue CVE-2010-4180
84 o Fix for CVE-2010-4252
85 o Fix mishandling of absent EC point format extension.
86 o Fix various platform compilation issues.
87 o Corrected fix for security issue CVE-2010-3864.
89 Major changes between OpenSSL 1.0.0a and OpenSSL 1.0.0b [16 Nov 2010]:
91 o Fix for security issue CVE-2010-3864.
92 o Fix for CVE-2010-2939
93 o Fix WIN32 build system for GOST ENGINE.
95 Major changes between OpenSSL 1.0.0 and OpenSSL 1.0.0a [1 Jun 2010]:
97 o Fix for security issue CVE-2010-1633.
98 o GOST MAC and CFB fixes.
100 Major changes between OpenSSL 0.9.8n and OpenSSL 1.0.0 [29 Mar 2010]:
102 o RFC3280 path validation: sufficient to process PKITS tests.
103 o Integrated support for PVK files and keyblobs.
104 o Change default private key format to PKCS#8.
105 o CMS support: able to process all examples in RFC4134
106 o Streaming ASN1 encode support for PKCS#7 and CMS.
107 o Multiple signer and signer add support for PKCS#7 and CMS.
108 o ASN1 printing support.
109 o Whirlpool hash algorithm added.
110 o RFC3161 time stamp support.
111 o New generalised public key API supporting ENGINE based algorithms.
112 o New generalised public key API utilities.
113 o New ENGINE supporting GOST algorithms.
114 o SSL/TLS GOST ciphersuite support.
115 o PKCS#7 and CMS GOST support.
116 o RFC4279 PSK ciphersuite support.
117 o Supported points format extension for ECC ciphersuites.
118 o ecdsa-with-SHA224/256/384/512 signature types.
119 o dsa-with-SHA224 and dsa-with-SHA256 signature types.
120 o Opaque PRF Input TLS extension support.
121 o Updated time routines to avoid OS limitations.
123 Major changes between OpenSSL 0.9.8x and OpenSSL 0.9.8y [5 Feb 2013]:
125 o Fix for SSL/TLS/DTLS CBC plaintext recovery attack CVE-2013-0169
126 o Fix OCSP bad key DoS attack CVE-2013-0166
128 Major changes between OpenSSL 0.9.8w and OpenSSL 0.9.8x [10 May 2012]:
130 o Fix DTLS record length checking bug CVE-2012-2333
132 Major changes between OpenSSL 0.9.8v and OpenSSL 0.9.8w [23 Apr 2012]:
134 o Fix for CVE-2012-2131 (corrected fix for 0.9.8 and CVE-2012-2110)
136 Major changes between OpenSSL 0.9.8u and OpenSSL 0.9.8v [19 Apr 2012]:
138 o Fix for ASN1 overflow bug CVE-2012-2110
140 Major changes between OpenSSL 0.9.8t and OpenSSL 0.9.8u [12 Mar 2012]:
142 o Fix for CMS/PKCS#7 MMA CVE-2012-0884
143 o Corrected fix for CVE-2011-4619
144 o Various DTLS fixes.
146 Major changes between OpenSSL 0.9.8s and OpenSSL 0.9.8t [18 Jan 2012]:
148 o Fix for DTLS DoS issue CVE-2012-0050
150 Major changes between OpenSSL 0.9.8r and OpenSSL 0.9.8s [4 Jan 2012]:
152 o Fix for DTLS plaintext recovery attack CVE-2011-4108
153 o Fix policy check double free error CVE-2011-4109
154 o Clear block padding bytes of SSL 3.0 records CVE-2011-4576
155 o Only allow one SGC handshake restart for SSL/TLS CVE-2011-4619
156 o Check for malformed RFC3779 data CVE-2011-4577
158 Major changes between OpenSSL 0.9.8q and OpenSSL 0.9.8r [8 Feb 2011]:
160 o Fix for security issue CVE-2011-0014
162 Major changes between OpenSSL 0.9.8p and OpenSSL 0.9.8q [2 Dec 2010]:
164 o Fix for security issue CVE-2010-4180
165 o Fix for CVE-2010-4252
167 Major changes between OpenSSL 0.9.8o and OpenSSL 0.9.8p [16 Nov 2010]:
169 o Fix for security issue CVE-2010-3864.
171 Major changes between OpenSSL 0.9.8n and OpenSSL 0.9.8o [1 Jun 2010]:
173 o Fix for security issue CVE-2010-0742.
174 o Various DTLS fixes.
175 o Recognise SHA2 certificates if only SSL algorithms added.
176 o Fix for no-rc4 compilation.
177 o Chil ENGINE unload workaround.
179 Major changes between OpenSSL 0.9.8m and OpenSSL 0.9.8n [24 Mar 2010]:
181 o CFB cipher definition fixes.
182 o Fix security issues CVE-2010-0740 and CVE-2010-0433.
184 Major changes between OpenSSL 0.9.8l and OpenSSL 0.9.8m [25 Feb 2010]:
186 o Cipher definition fixes.
187 o Workaround for slow RAND_poll() on some WIN32 versions.
188 o Remove MD2 from algorithm tables.
189 o SPKAC handling fixes.
190 o Support for RFC5746 TLS renegotiation extension.
191 o Compression memory leak fixed.
192 o Compression session resumption fixed.
193 o Ticket and SNI coexistence fixes.
194 o Many fixes to DTLS handling.
196 Major changes between OpenSSL 0.9.8k and OpenSSL 0.9.8l [5 Nov 2009]:
198 o Temporary work around for CVE-2009-3555: disable renegotiation.
200 Major changes between OpenSSL 0.9.8j and OpenSSL 0.9.8k [25 Mar 2009]:
202 o Fix various build issues.
203 o Fix security issues (CVE-2009-0590, CVE-2009-0591, CVE-2009-0789)
205 Major changes between OpenSSL 0.9.8i and OpenSSL 0.9.8j [7 Jan 2009]:
207 o Fix security issue (CVE-2008-5077)
208 o Merge FIPS 140-2 branch code.
210 Major changes between OpenSSL 0.9.8g and OpenSSL 0.9.8h [28 May 2008]:
212 o CryptoAPI ENGINE support.
213 o Various precautionary measures.
214 o Fix for bugs affecting certificate request creation.
215 o Support for local machine keyset attribute in PKCS#12 files.
217 Major changes between OpenSSL 0.9.8f and OpenSSL 0.9.8g [19 Oct 2007]:
219 o Backport of CMS functionality to 0.9.8.
220 o Fixes for bugs introduced with 0.9.8f.
222 Major changes between OpenSSL 0.9.8e and OpenSSL 0.9.8f [11 Oct 2007]:
224 o Add gcc 4.2 support.
225 o Add support for AES and SSE2 assembly lanugauge optimization
227 o Support for RFC4507bis and server name extensions if explicitly
228 selected at compile time.
230 o RFC4507bis support.
231 o TLS Extensions support.
233 Major changes between OpenSSL 0.9.8d and OpenSSL 0.9.8e [23 Feb 2007]:
235 o Various ciphersuite selection fixes.
238 Major changes between OpenSSL 0.9.8c and OpenSSL 0.9.8d [28 Sep 2006]:
240 o Introduce limits to prevent malicious key DoS (CVE-2006-2940)
241 o Fix security issues (CVE-2006-2937, CVE-2006-3737, CVE-2006-4343)
242 o Changes to ciphersuite selection algorithm
244 Major changes between OpenSSL 0.9.8b and OpenSSL 0.9.8c [5 Sep 2006]:
246 o Fix Daniel Bleichenbacher forged signature attack, CVE-2006-4339
247 o New cipher Camellia
249 Major changes between OpenSSL 0.9.8a and OpenSSL 0.9.8b [4 May 2006]:
251 o Cipher string fixes.
252 o Fixes for VC++ 2005.
253 o Updated ECC cipher suite support.
254 o New functions EVP_CIPHER_CTX_new() and EVP_CIPHER_CTX_free().
255 o Zlib compression usage fixes.
256 o Built in dynamic engine compilation support on Win32.
257 o Fixes auto dynamic engine loading in Win32.
259 Major changes between OpenSSL 0.9.8 and OpenSSL 0.9.8a [11 Oct 2005]:
261 o Fix potential SSL 2.0 rollback, CVE-2005-2969
262 o Extended Windows CE support
264 Major changes between OpenSSL 0.9.7g and OpenSSL 0.9.8 [5 Jul 2005]:
266 o Major work on the BIGNUM library for higher efficiency and to
267 make operations more streamlined and less contradictory. This
268 is the result of a major audit of the BIGNUM library.
269 o Addition of BIGNUM functions for fields GF(2^m) and NIST
270 curves, to support the Elliptic Crypto functions.
271 o Major work on Elliptic Crypto; ECDH and ECDSA added, including
272 the use through EVP, X509 and ENGINE.
273 o New ASN.1 mini-compiler that's usable through the OpenSSL
275 o Added support for ASN.1 indefinite length constructed encoding.
276 o New PKCS#12 'medium level' API to manipulate PKCS#12 files.
277 o Complete rework of shared library construction and linking
278 programs with shared or static libraries, through a separate
280 o Rework of the passing of parameters from one Makefile to another.
281 o Changed ENGINE framework to load dynamic engine modules
282 automatically from specifically given directories.
283 o New structure and ASN.1 functions for CertificatePair.
284 o Changed the ZLIB compression method to be stateful.
285 o Changed the key-generation and primality testing "progress"
286 mechanism to take a structure that contains the ticker
287 function and an argument.
288 o New engine module: GMP (performs private key exponentiation).
289 o New engine module: VIA PadLOck ACE extension in VIA C3
291 o Added support for IPv6 addresses in certificate extensions.
292 See RFC 1884, section 2.2.
293 o Added support for certificate policy mappings, policy
294 constraints and name constraints.
295 o Added support for multi-valued AVAs in the OpenSSL
297 o Added support for multiple certificates with the same subject
298 in the 'openssl ca' index file.
299 o Make it possible to create self-signed certificates using
300 'openssl ca -selfsign'.
301 o Make it possible to generate a serial number file with
302 'openssl ca -create_serial'.
303 o New binary search functions with extended functionality.
305 o New STORE structure and library to provide an interface to all
306 sorts of data repositories. Supports storage of public and
307 private keys, certificates, CRLs, numbers and arbitrary blobs.
308 This library is unfortunately unfinished and unused withing
310 o New control functions for the error stack.
311 o Changed the PKCS#7 library to support one-pass S/MIME
313 o Added the possibility to compile without old deprecated
314 functionality with the OPENSSL_NO_DEPRECATED macro or the
315 'no-deprecated' argument to the config and Configure scripts.
316 o Constification of all ASN.1 conversion functions, and other
318 o Improved platform support for PowerPC.
319 o New FIPS 180-2 algorithms (SHA-224, -256, -384 and -512).
320 o New X509_VERIFY_PARAM structure to support parametrisation
321 of X.509 path validation.
322 o Major overhaul of RC4 performance on Intel P4, IA-64 and
324 o Changed the Configure script to have some algorithms disabled
325 by default. Those can be explicitely enabled with the new
326 argument form 'enable-xxx'.
327 o Change the default digest in 'openssl' commands from MD5 to
329 o Added support for DTLS.
330 o New BIGNUM blinding.
331 o Added support for the RSA-PSS encryption scheme
332 o Added support for the RSA X.931 padding.
333 o Added support for BSD sockets on NetWare.
334 o Added support for files larger than 2GB.
335 o Added initial support for Win64.
336 o Added alternate pkg-config files.
338 Major changes between OpenSSL 0.9.7l and OpenSSL 0.9.7m [23 Feb 2007]:
340 o FIPS 1.1.1 module linking.
341 o Various ciphersuite selection fixes.
343 Major changes between OpenSSL 0.9.7k and OpenSSL 0.9.7l [28 Sep 2006]:
345 o Introduce limits to prevent malicious key DoS (CVE-2006-2940)
346 o Fix security issues (CVE-2006-2937, CVE-2006-3737, CVE-2006-4343)
348 Major changes between OpenSSL 0.9.7j and OpenSSL 0.9.7k [5 Sep 2006]:
350 o Fix Daniel Bleichenbacher forged signature attack, CVE-2006-4339
352 Major changes between OpenSSL 0.9.7i and OpenSSL 0.9.7j [4 May 2006]:
354 o Visual C++ 2005 fixes.
355 o Update Windows build system for FIPS.
357 Major changes between OpenSSL 0.9.7h and OpenSSL 0.9.7i [14 Oct 2005]:
359 o Give EVP_MAX_MD_SIZE it's old value, except for a FIPS build.
361 Major changes between OpenSSL 0.9.7g and OpenSSL 0.9.7h [11 Oct 2005]:
363 o Fix SSL 2.0 Rollback, CVE-2005-2969
364 o Allow use of fixed-length exponent on DSA signing
365 o Default fixed-window RSA, DSA, DH private-key operations
367 Major changes between OpenSSL 0.9.7f and OpenSSL 0.9.7g [11 Apr 2005]:
369 o More compilation issues fixed.
370 o Adaptation to more modern Kerberos API.
371 o Enhanced or corrected configuration for Solaris64, Mingw and Cygwin.
372 o Enhanced x86_64 assembler BIGNUM module.
373 o More constification.
374 o Added processing of proxy certificates (RFC 3820).
376 Major changes between OpenSSL 0.9.7e and OpenSSL 0.9.7f [22 Mar 2005]:
378 o Several compilation issues fixed.
379 o Many memory allocation failure checks added.
380 o Improved comparison of X509 Name type.
381 o Mandatory basic checks on certificates.
382 o Performance improvements.
384 Major changes between OpenSSL 0.9.7d and OpenSSL 0.9.7e [25 Oct 2004]:
386 o Fix race condition in CRL checking code.
387 o Fixes to PKCS#7 (S/MIME) code.
389 Major changes between OpenSSL 0.9.7c and OpenSSL 0.9.7d [17 Mar 2004]:
391 o Security: Fix Kerberos ciphersuite SSL/TLS handshaking bug
392 o Security: Fix null-pointer assignment in do_change_cipher_spec()
393 o Allow multiple active certificates with same subject in CA index
394 o Multiple X509 verification fixes
395 o Speed up HMAC and other operations
397 Major changes between OpenSSL 0.9.7b and OpenSSL 0.9.7c [30 Sep 2003]:
399 o Security: fix various ASN1 parsing bugs.
400 o New -ignore_err option to OCSP utility.
401 o Various interop and bug fixes in S/MIME code.
402 o SSL/TLS protocol fix for unrequested client certificates.
404 Major changes between OpenSSL 0.9.7a and OpenSSL 0.9.7b [10 Apr 2003]:
406 o Security: counter the Klima-Pokorny-Rosa extension of
407 Bleichbacher's attack
408 o Security: make RSA blinding default.
409 o Configuration: Irix fixes, AIX fixes, better mingw support.
410 o Support for new platforms: linux-ia64-ecc.
411 o Build: shared library support fixes.
412 o ASN.1: treat domainComponent correctly.
413 o Documentation: fixes and additions.
415 Major changes between OpenSSL 0.9.7 and OpenSSL 0.9.7a [19 Feb 2003]:
417 o Security: Important security related bugfixes.
418 o Enhanced compatibility with MIT Kerberos.
419 o Can be built without the ENGINE framework.
420 o IA32 assembler enhancements.
421 o Support for new platforms: FreeBSD/IA64 and FreeBSD/Sparc64.
422 o Configuration: the no-err option now works properly.
423 o SSL/TLS: now handles manual certificate chain building.
424 o SSL/TLS: certain session ID malfunctions corrected.
426 Major changes between OpenSSL 0.9.6 and OpenSSL 0.9.7 [30 Dec 2002]:
428 o New library section OCSP.
429 o Complete rewrite of ASN1 code.
430 o CRL checking in verify code and openssl utility.
431 o Extension copying in 'ca' utility.
432 o Flexible display options in 'ca' utility.
433 o Provisional support for international characters with UTF8.
434 o Support for external crypto devices ('engine') is no longer
435 a separate distribution.
436 o New elliptic curve library section.
437 o New AES (Rijndael) library section.
438 o Support for new platforms: Windows CE, Tandem OSS, A/UX, AIX 64-bit,
439 Linux x86_64, Linux 64-bit on Sparc v9
440 o Extended support for some platforms: VxWorks
441 o Enhanced support for shared libraries.
442 o Now only builds PIC code when shared library support is requested.
443 o Support for pkg-config.
444 o Lots of new manuals.
445 o Makes symbolic links to or copies of manuals to cover all described
447 o Change DES API to clean up the namespace (some applications link also
448 against libdes providing similar functions having the same name).
449 Provide macros for backward compatibility (will be removed in the
451 o Unify handling of cryptographic algorithms (software and engine)
452 to be available via EVP routines for asymmetric and symmetric ciphers.
453 o NCONF: new configuration handling routines.
454 o Change API to use more 'const' modifiers to improve error checking
456 o Finally remove references to RSAref.
457 o Reworked parts of the BIGNUM code.
458 o Support for new engines: Broadcom ubsec, Accelerated Encryption
459 Processing, IBM 4758.
460 o A few new engines added in the demos area.
461 o Extended and corrected OID (object identifier) table.
462 o PRNG: query at more locations for a random device, automatic query for
463 EGD style random sources at several locations.
464 o SSL/TLS: allow optional cipher choice according to server's preference.
465 o SSL/TLS: allow server to explicitly set new session ids.
466 o SSL/TLS: support Kerberos cipher suites (RFC2712).
467 Only supports MIT Kerberos for now.
468 o SSL/TLS: allow more precise control of renegotiations and sessions.
469 o SSL/TLS: add callback to retrieve SSL/TLS messages.
470 o SSL/TLS: support AES cipher suites (RFC3268).
472 Major changes between OpenSSL 0.9.6j and OpenSSL 0.9.6k [30 Sep 2003]:
474 o Security: fix various ASN1 parsing bugs.
475 o SSL/TLS protocol fix for unrequested client certificates.
477 Major changes between OpenSSL 0.9.6i and OpenSSL 0.9.6j [10 Apr 2003]:
479 o Security: counter the Klima-Pokorny-Rosa extension of
480 Bleichbacher's attack
481 o Security: make RSA blinding default.
482 o Build: shared library support fixes.
484 Major changes between OpenSSL 0.9.6h and OpenSSL 0.9.6i [19 Feb 2003]:
486 o Important security related bugfixes.
488 Major changes between OpenSSL 0.9.6g and OpenSSL 0.9.6h [5 Dec 2002]:
490 o New configuration targets for Tandem OSS and A/UX.
491 o New OIDs for Microsoft attributes.
492 o Better handling of SSL session caching.
493 o Better comparison of distinguished names.
494 o Better handling of shared libraries in a mixed GNU/non-GNU environment.
495 o Support assembler code with Borland C.
496 o Fixes for length problems.
497 o Fixes for uninitialised variables.
498 o Fixes for memory leaks, some unusual crashes and some race conditions.
499 o Fixes for smaller building problems.
500 o Updates of manuals, FAQ and other instructive documents.
502 Major changes between OpenSSL 0.9.6f and OpenSSL 0.9.6g [9 Aug 2002]:
504 o Important building fixes on Unix.
506 Major changes between OpenSSL 0.9.6e and OpenSSL 0.9.6f [8 Aug 2002]:
508 o Various important bugfixes.
510 Major changes between OpenSSL 0.9.6d and OpenSSL 0.9.6e [30 Jul 2002]:
512 o Important security related bugfixes.
513 o Various SSL/TLS library bugfixes.
515 Major changes between OpenSSL 0.9.6c and OpenSSL 0.9.6d [9 May 2002]:
517 o Various SSL/TLS library bugfixes.
518 o Fix DH parameter generation for 'non-standard' generators.
520 Major changes between OpenSSL 0.9.6b and OpenSSL 0.9.6c [21 Dec 2001]:
522 o Various SSL/TLS library bugfixes.
523 o BIGNUM library fixes.
524 o RSA OAEP and random number generation fixes.
525 o Object identifiers corrected and added.
526 o Add assembler BN routines for IA64.
527 o Add support for OS/390 Unix, UnixWare with gcc, OpenUNIX 8,
528 MIPS Linux; shared library support for Irix, HP-UX.
529 o Add crypto accelerator support for AEP, Baltimore SureWare,
530 Broadcom and Cryptographic Appliance's keyserver
531 [in 0.9.6c-engine release].
533 Major changes between OpenSSL 0.9.6a and OpenSSL 0.9.6b [9 Jul 2001]:
535 o Security fix: PRNG improvements.
536 o Security fix: RSA OAEP check.
537 o Security fix: Reinsert and fix countermeasure to Bleichbacher's
539 o MIPS bug fix in BIGNUM.
540 o Bug fix in "openssl enc".
541 o Bug fix in X.509 printing routine.
542 o Bug fix in DSA verification routine and DSA S/MIME verification.
543 o Bug fix to make PRNG thread-safe.
544 o Bug fix in RAND_file_name().
545 o Bug fix in compatibility mode trust settings.
546 o Bug fix in blowfish EVP.
547 o Increase default size for BIO buffering filter.
548 o Compatibility fixes in some scripts.
550 Major changes between OpenSSL 0.9.6 and OpenSSL 0.9.6a [5 Apr 2001]:
552 o Security fix: change behavior of OpenSSL to avoid using
553 environment variables when running as root.
554 o Security fix: check the result of RSA-CRT to reduce the
555 possibility of deducing the private key from an incorrectly
556 calculated signature.
557 o Security fix: prevent Bleichenbacher's DSA attack.
558 o Security fix: Zero the premaster secret after deriving the
559 master secret in DH ciphersuites.
560 o Reimplement SSL_peek(), which had various problems.
561 o Compatibility fix: the function des_encrypt() renamed to
562 des_encrypt1() to avoid clashes with some Unixen libc.
563 o Bug fixes for Win32, HP/UX and Irix.
564 o Bug fixes in BIGNUM, SSL, PKCS#7, PKCS#12, X.509, CONF and
565 memory checking routines.
566 o Bug fixes for RSA operations in threaded environments.
567 o Bug fixes in misc. openssl applications.
568 o Remove a few potential memory leaks.
569 o Add tighter checks of BIGNUM routines.
570 o Shared library support has been reworked for generality.
571 o More documentation.
572 o New function BN_rand_range().
573 o Add "-rand" option to openssl s_client and s_server.
575 Major changes between OpenSSL 0.9.5a and OpenSSL 0.9.6 [10 Oct 2000]:
577 o Some documentation for BIO and SSL libraries.
578 o Enhanced chain verification using key identifiers.
579 o New sign and verify options to 'dgst' application.
580 o Support for DER and PEM encoded messages in 'smime' application.
581 o New 'rsautl' application, low level RSA utility.
583 o Bugfix for SSL rollback padding check.
584 o Support for external crypto devices [1].
585 o Enhanced EVP interface.
587 [1] The support for external crypto devices is currently a separate
588 distribution. See the file README.ENGINE.
590 Major changes between OpenSSL 0.9.5 and OpenSSL 0.9.5a [1 Apr 2000]:
592 o Bug fixes for Win32, SuSE Linux, NeXTSTEP and FreeBSD 2.2.8
593 o Shared library support for HPUX and Solaris-gcc
594 o Support of Linux/IA64
595 o Assembler support for Mingw32
596 o New 'rand' application
597 o New way to check for existence of algorithms from scripts
599 Major changes between OpenSSL 0.9.4 and OpenSSL 0.9.5 [25 May 2000]:
601 o S/MIME support in new 'smime' command
602 o Documentation for the OpenSSL command line application
603 o Automation of 'req' application
604 o Fixes to make s_client, s_server work under Windows
605 o Support for multiple fieldnames in SPKACs
606 o New SPKAC command line utilty and associated library functions
607 o Options to allow passwords to be obtained from various sources
608 o New public key PEM format and options to handle it
609 o Many other fixes and enhancements to command line utilities
610 o Usable certificate chain verification
611 o Certificate purpose checking
612 o Certificate trust settings
613 o Support of authority information access extension
614 o Extensions in certificate requests
615 o Simplified X509 name and attribute routines
616 o Initial (incomplete) support for international character sets
617 o New DH_METHOD, DSA_METHOD and enhanced RSA_METHOD
618 o Read only memory BIOs and simplified creation function
619 o TLS/SSL protocol bugfixes: Accept TLS 'client hello' in SSL 3.0
620 record; allow fragmentation and interleaving of handshake and other
622 o TLS/SSL code now "tolerates" MS SGC
623 o Work around for Netscape client certificate hang bug
624 o RSA_NULL option that removes RSA patent code but keeps other
626 o Memory leak detection now allows applications to add extra information
627 via a per-thread stack
628 o PRNG robustness improved
630 o BIGNUM library bug fixes
631 o Faster DSA parameter generation
632 o Enhanced support for Alpha Linux
633 o Experimental MacOS support
635 Major changes between OpenSSL 0.9.3 and OpenSSL 0.9.4 [9 Aug 1999]:
637 o Transparent support for PKCS#8 format private keys: these are used
638 by several software packages and are more secure than the standard
640 o PKCS#5 v2.0 implementation
641 o Password callbacks have a new void * argument for application data
642 o Avoid various memory leaks
643 o New pipe-like BIO that allows using the SSL library when actual I/O
644 must be handled by the application (BIO pair)
646 Major changes between OpenSSL 0.9.2b and OpenSSL 0.9.3 [24 May 1999]:
647 o Lots of enhancements and cleanups to the Configuration mechanism
648 o RSA OEAP related fixes
649 o Added `openssl ca -revoke' option for revoking a certificate
650 o Source cleanups: const correctness, type-safe stacks and ASN.1 SETs
651 o Source tree cleanups: removed lots of obsolete files
652 o Thawte SXNet, certificate policies and CRL distribution points
654 o Preliminary (experimental) S/MIME support
655 o Support for ASN.1 UTF8String and VisibleString
656 o Full integration of PKCS#12 code
657 o Sparc assembler bignum implementation, optimized hash functions
658 o Option to disable selected ciphers
660 Major changes between OpenSSL 0.9.1c and OpenSSL 0.9.2b [22 Mar 1999]:
661 o Fixed a security hole related to session resumption
662 o Fixed RSA encryption routines for the p < q case
663 o "ALL" in cipher lists now means "everything except NULL ciphers"
664 o Support for Triple-DES CBCM cipher
665 o Support of Optimal Asymmetric Encryption Padding (OAEP) for RSA
666 o First support for new TLSv1 ciphers
667 o Added a few new BIOs (syslog BIO, reliable BIO)
668 o Extended support for DSA certificate/keys.
669 o Extended support for Certificate Signing Requests (CSR)
670 o Initial support for X.509v3 extensions
671 o Extended support for compression inside the SSL record layer
672 o Overhauled Win32 builds
673 o Cleanups and fixes to the Big Number (BN) library
674 o Support for ASN.1 GeneralizedTime
675 o Splitted ASN.1 SETs from SEQUENCEs
676 o ASN1 and PEM support for Netscape Certificate Sequences
677 o Overhauled Perl interface
678 o Lots of source tree cleanups.
679 o Lots of memory leak fixes.
682 Major changes between SSLeay 0.9.0b and OpenSSL 0.9.1c [23 Dec 1998]:
683 o Integration of the popular NO_RSA/NO_DSA patches
684 o Initial support for compression inside the SSL record layer
685 o Added BIO proxy and filtering functionality
686 o Extended Big Number (BN) library
687 o Added RIPE MD160 message digest
688 o Addeed support for RC2/64bit cipher
689 o Extended ASN.1 parser routines
690 o Adjustations of the source tree for CVS
691 o Support for various new platforms