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 1.0.2h and OpenSSL 1.0.2i [under development]
12 Major changes between OpenSSL 1.0.2g and OpenSSL 1.0.2h [3 May 2016]
14 o Prevent padding oracle in AES-NI CBC MAC check (CVE-2016-2107)
15 o Fix EVP_EncodeUpdate overflow (CVE-2016-2105)
16 o Fix EVP_EncryptUpdate overflow (CVE-2016-2106)
17 o Prevent ASN.1 BIO excessive memory allocation (CVE-2016-2109)
18 o EBCDIC overread (CVE-2016-2176)
19 o Modify behavior of ALPN to invoke callback after SNI/servername
20 callback, such that updates to the SSL_CTX affect ALPN.
21 o Remove LOW from the DEFAULT cipher list. This removes singles DES from
23 o Only remove the SSLv2 methods with the no-ssl2-method option.
25 Major changes between OpenSSL 1.0.2f and OpenSSL 1.0.2g [1 Mar 2016]
27 o Disable weak ciphers in SSLv3 and up in default builds of OpenSSL.
28 o Disable SSLv2 default build, default negotiation and weak ciphers
30 o Fix a double-free in DSA code (CVE-2016-0705)
31 o Disable SRP fake user seed to address a server memory leak
33 o Fix BN_hex2bn/BN_dec2bn NULL pointer deref/heap corruption
35 o Fix memory issues in BIO_*printf functions (CVE-2016-0799)
36 o Fix side channel attack on modular exponentiation (CVE-2016-0702)
38 Major changes between OpenSSL 1.0.2e and OpenSSL 1.0.2f [28 Jan 2016]
40 o DH small subgroups (CVE-2016-0701)
41 o SSLv2 doesn't block disabled ciphers (CVE-2015-3197)
43 Major changes between OpenSSL 1.0.2d and OpenSSL 1.0.2e [3 Dec 2015]
45 o BN_mod_exp may produce incorrect results on x86_64 (CVE-2015-3193)
46 o Certificate verify crash with missing PSS parameter (CVE-2015-3194)
47 o X509_ATTRIBUTE memory leak (CVE-2015-3195)
48 o Rewrite EVP_DecodeUpdate (base64 decoding) to fix several bugs
49 o In DSA_generate_parameters_ex, if the provided seed is too short,
52 Major changes between OpenSSL 1.0.2c and OpenSSL 1.0.2d [9 Jul 2015]
54 o Alternate chains certificate forgery (CVE-2015-1793)
55 o Race condition handling PSK identify hint (CVE-2015-3196)
57 Major changes between OpenSSL 1.0.2b and OpenSSL 1.0.2c [12 Jun 2015]
59 o Fix HMAC ABI incompatibility
61 Major changes between OpenSSL 1.0.2a and OpenSSL 1.0.2b [11 Jun 2015]
63 o Malformed ECParameters causes infinite loop (CVE-2015-1788)
64 o Exploitable out-of-bounds read in X509_cmp_time (CVE-2015-1789)
65 o PKCS7 crash with missing EnvelopedContent (CVE-2015-1790)
66 o CMS verify infinite loop with unknown hash function (CVE-2015-1792)
67 o Race condition handling NewSessionTicket (CVE-2015-1791)
69 Major changes between OpenSSL 1.0.2 and OpenSSL 1.0.2a [19 Mar 2015]
71 o OpenSSL 1.0.2 ClientHello sigalgs DoS fix (CVE-2015-0291)
72 o Multiblock corrupted pointer fix (CVE-2015-0290)
73 o Segmentation fault in DTLSv1_listen fix (CVE-2015-0207)
74 o Segmentation fault in ASN1_TYPE_cmp fix (CVE-2015-0286)
75 o Segmentation fault for invalid PSS parameters fix (CVE-2015-0208)
76 o ASN.1 structure reuse memory corruption fix (CVE-2015-0287)
77 o PKCS7 NULL pointer dereferences fix (CVE-2015-0289)
78 o DoS via reachable assert in SSLv2 servers fix (CVE-2015-0293)
79 o Empty CKE with client auth and DHE fix (CVE-2015-1787)
80 o Handshake with unseeded PRNG fix (CVE-2015-0285)
81 o Use After Free following d2i_ECPrivatekey error fix (CVE-2015-0209)
82 o X509_to_X509_REQ NULL pointer deref fix (CVE-2015-0288)
83 o Removed the export ciphers from the DEFAULT ciphers
85 Major changes between OpenSSL 1.0.1l and OpenSSL 1.0.2 [22 Jan 2015]:
87 o Suite B support for TLS 1.2 and DTLS 1.2
88 o Support for DTLS 1.2
89 o TLS automatic EC curve selection.
90 o API to set TLS supported signature algorithms and curves
91 o SSL_CONF configuration API.
92 o TLS Brainpool support.
94 o CMS support for RSA-PSS, RSA-OAEP, ECDH and X9.42 DH.
96 Major changes between OpenSSL 1.0.1k and OpenSSL 1.0.1l [15 Jan 2015]
98 o Build fixes for the Windows and OpenVMS platforms
100 Major changes between OpenSSL 1.0.1j and OpenSSL 1.0.1k [8 Jan 2015]
102 o Fix for CVE-2014-3571
103 o Fix for CVE-2015-0206
104 o Fix for CVE-2014-3569
105 o Fix for CVE-2014-3572
106 o Fix for CVE-2015-0204
107 o Fix for CVE-2015-0205
108 o Fix for CVE-2014-8275
109 o Fix for CVE-2014-3570
111 Major changes between OpenSSL 1.0.1i and OpenSSL 1.0.1j [15 Oct 2014]
113 o Fix for CVE-2014-3513
114 o Fix for CVE-2014-3567
115 o Mitigation for CVE-2014-3566 (SSL protocol vulnerability)
116 o Fix for CVE-2014-3568
118 Major changes between OpenSSL 1.0.1h and OpenSSL 1.0.1i [6 Aug 2014]
120 o Fix for CVE-2014-3512
121 o Fix for CVE-2014-3511
122 o Fix for CVE-2014-3510
123 o Fix for CVE-2014-3507
124 o Fix for CVE-2014-3506
125 o Fix for CVE-2014-3505
126 o Fix for CVE-2014-3509
127 o Fix for CVE-2014-5139
128 o Fix for CVE-2014-3508
130 Major changes between OpenSSL 1.0.1g and OpenSSL 1.0.1h [5 Jun 2014]
132 o Fix for CVE-2014-0224
133 o Fix for CVE-2014-0221
134 o Fix for CVE-2014-0198
135 o Fix for CVE-2014-0195
136 o Fix for CVE-2014-3470
137 o Fix for CVE-2010-5298
139 Major changes between OpenSSL 1.0.1f and OpenSSL 1.0.1g [7 Apr 2014]
141 o Fix for CVE-2014-0160
142 o Add TLS padding extension workaround for broken servers.
143 o Fix for CVE-2014-0076
145 Major changes between OpenSSL 1.0.1e and OpenSSL 1.0.1f [6 Jan 2014]
147 o Don't include gmt_unix_time in TLS server and client random values
148 o Fix for TLS record tampering bug CVE-2013-4353
149 o Fix for TLS version checking bug CVE-2013-6449
150 o Fix for DTLS retransmission bug CVE-2013-6450
152 Major changes between OpenSSL 1.0.1d and OpenSSL 1.0.1e [11 Feb 2013]:
154 o Corrected fix for CVE-2013-0169
156 Major changes between OpenSSL 1.0.1c and OpenSSL 1.0.1d [4 Feb 2013]:
158 o Fix renegotiation in TLS 1.1, 1.2 by using the correct TLS version.
159 o Include the fips configuration module.
160 o Fix OCSP bad key DoS attack CVE-2013-0166
161 o Fix for SSL/TLS/DTLS CBC plaintext recovery attack CVE-2013-0169
162 o Fix for TLS AESNI record handling flaw CVE-2012-2686
164 Major changes between OpenSSL 1.0.1b and OpenSSL 1.0.1c [10 May 2012]:
166 o Fix TLS/DTLS record length checking bug CVE-2012-2333
167 o Don't attempt to use non-FIPS composite ciphers in FIPS mode.
169 Major changes between OpenSSL 1.0.1a and OpenSSL 1.0.1b [26 Apr 2012]:
171 o Fix compilation error on non-x86 platforms.
172 o Make FIPS capable OpenSSL ciphers work in non-FIPS mode.
173 o Fix SSL_OP_NO_TLSv1_1 clash with SSL_OP_ALL in OpenSSL 1.0.0
175 Major changes between OpenSSL 1.0.1 and OpenSSL 1.0.1a [19 Apr 2012]:
177 o Fix for ASN1 overflow bug CVE-2012-2110
178 o Workarounds for some servers that hang on long client hellos.
179 o Fix SEGV in AES code.
181 Major changes between OpenSSL 1.0.0h and OpenSSL 1.0.1 [14 Mar 2012]:
183 o TLS/DTLS heartbeat support.
185 o RFC 5705 TLS key material exporter.
186 o RFC 5764 DTLS-SRTP negotiation.
187 o Next Protocol Negotiation.
188 o PSS signatures in certificates, requests and CRLs.
189 o Support for password based recipient info for CMS.
190 o Support TLS v1.2 and TLS v1.1.
191 o Preliminary FIPS capability for unvalidated 2.0 FIPS module.
194 Major changes between OpenSSL 1.0.0g and OpenSSL 1.0.0h [12 Mar 2012]:
196 o Fix for CMS/PKCS#7 MMA CVE-2012-0884
197 o Corrected fix for CVE-2011-4619
198 o Various DTLS fixes.
200 Major changes between OpenSSL 1.0.0f and OpenSSL 1.0.0g [18 Jan 2012]:
202 o Fix for DTLS DoS issue CVE-2012-0050
204 Major changes between OpenSSL 1.0.0e and OpenSSL 1.0.0f [4 Jan 2012]:
206 o Fix for DTLS plaintext recovery attack CVE-2011-4108
207 o Clear block padding bytes of SSL 3.0 records CVE-2011-4576
208 o Only allow one SGC handshake restart for SSL/TLS CVE-2011-4619
209 o Check parameters are not NULL in GOST ENGINE CVE-2012-0027
210 o Check for malformed RFC3779 data CVE-2011-4577
212 Major changes between OpenSSL 1.0.0d and OpenSSL 1.0.0e [6 Sep 2011]:
214 o Fix for CRL vulnerability issue CVE-2011-3207
215 o Fix for ECDH crashes CVE-2011-3210
216 o Protection against EC timing attacks.
217 o Support ECDH ciphersuites for certificates using SHA2 algorithms.
218 o Various DTLS fixes.
220 Major changes between OpenSSL 1.0.0c and OpenSSL 1.0.0d [8 Feb 2011]:
222 o Fix for security issue CVE-2011-0014
224 Major changes between OpenSSL 1.0.0b and OpenSSL 1.0.0c [2 Dec 2010]:
226 o Fix for security issue CVE-2010-4180
227 o Fix for CVE-2010-4252
228 o Fix mishandling of absent EC point format extension.
229 o Fix various platform compilation issues.
230 o Corrected fix for security issue CVE-2010-3864.
232 Major changes between OpenSSL 1.0.0a and OpenSSL 1.0.0b [16 Nov 2010]:
234 o Fix for security issue CVE-2010-3864.
235 o Fix for CVE-2010-2939
236 o Fix WIN32 build system for GOST ENGINE.
238 Major changes between OpenSSL 1.0.0 and OpenSSL 1.0.0a [1 Jun 2010]:
240 o Fix for security issue CVE-2010-1633.
241 o GOST MAC and CFB fixes.
243 Major changes between OpenSSL 0.9.8n and OpenSSL 1.0.0 [29 Mar 2010]:
245 o RFC3280 path validation: sufficient to process PKITS tests.
246 o Integrated support for PVK files and keyblobs.
247 o Change default private key format to PKCS#8.
248 o CMS support: able to process all examples in RFC4134
249 o Streaming ASN1 encode support for PKCS#7 and CMS.
250 o Multiple signer and signer add support for PKCS#7 and CMS.
251 o ASN1 printing support.
252 o Whirlpool hash algorithm added.
253 o RFC3161 time stamp support.
254 o New generalised public key API supporting ENGINE based algorithms.
255 o New generalised public key API utilities.
256 o New ENGINE supporting GOST algorithms.
257 o SSL/TLS GOST ciphersuite support.
258 o PKCS#7 and CMS GOST support.
259 o RFC4279 PSK ciphersuite support.
260 o Supported points format extension for ECC ciphersuites.
261 o ecdsa-with-SHA224/256/384/512 signature types.
262 o dsa-with-SHA224 and dsa-with-SHA256 signature types.
263 o Opaque PRF Input TLS extension support.
264 o Updated time routines to avoid OS limitations.
266 Major changes between OpenSSL 0.9.8m and OpenSSL 0.9.8n [24 Mar 2010]:
268 o CFB cipher definition fixes.
269 o Fix security issues CVE-2010-0740 and CVE-2010-0433.
271 Major changes between OpenSSL 0.9.8l and OpenSSL 0.9.8m [25 Feb 2010]:
273 o Cipher definition fixes.
274 o Workaround for slow RAND_poll() on some WIN32 versions.
275 o Remove MD2 from algorithm tables.
276 o SPKAC handling fixes.
277 o Support for RFC5746 TLS renegotiation extension.
278 o Compression memory leak fixed.
279 o Compression session resumption fixed.
280 o Ticket and SNI coexistence fixes.
281 o Many fixes to DTLS handling.
283 Major changes between OpenSSL 0.9.8k and OpenSSL 0.9.8l [5 Nov 2009]:
285 o Temporary work around for CVE-2009-3555: disable renegotiation.
287 Major changes between OpenSSL 0.9.8j and OpenSSL 0.9.8k [25 Mar 2009]:
289 o Fix various build issues.
290 o Fix security issues (CVE-2009-0590, CVE-2009-0591, CVE-2009-0789)
292 Major changes between OpenSSL 0.9.8i and OpenSSL 0.9.8j [7 Jan 2009]:
294 o Fix security issue (CVE-2008-5077)
295 o Merge FIPS 140-2 branch code.
297 Major changes between OpenSSL 0.9.8g and OpenSSL 0.9.8h [28 May 2008]:
299 o CryptoAPI ENGINE support.
300 o Various precautionary measures.
301 o Fix for bugs affecting certificate request creation.
302 o Support for local machine keyset attribute in PKCS#12 files.
304 Major changes between OpenSSL 0.9.8f and OpenSSL 0.9.8g [19 Oct 2007]:
306 o Backport of CMS functionality to 0.9.8.
307 o Fixes for bugs introduced with 0.9.8f.
309 Major changes between OpenSSL 0.9.8e and OpenSSL 0.9.8f [11 Oct 2007]:
311 o Add gcc 4.2 support.
312 o Add support for AES and SSE2 assembly lanugauge optimization
314 o Support for RFC4507bis and server name extensions if explicitly
315 selected at compile time.
317 o RFC4507bis support.
318 o TLS Extensions support.
320 Major changes between OpenSSL 0.9.8d and OpenSSL 0.9.8e [23 Feb 2007]:
322 o Various ciphersuite selection fixes.
325 Major changes between OpenSSL 0.9.8c and OpenSSL 0.9.8d [28 Sep 2006]:
327 o Introduce limits to prevent malicious key DoS (CVE-2006-2940)
328 o Fix security issues (CVE-2006-2937, CVE-2006-3737, CVE-2006-4343)
329 o Changes to ciphersuite selection algorithm
331 Major changes between OpenSSL 0.9.8b and OpenSSL 0.9.8c [5 Sep 2006]:
333 o Fix Daniel Bleichenbacher forged signature attack, CVE-2006-4339
334 o New cipher Camellia
336 Major changes between OpenSSL 0.9.8a and OpenSSL 0.9.8b [4 May 2006]:
338 o Cipher string fixes.
339 o Fixes for VC++ 2005.
340 o Updated ECC cipher suite support.
341 o New functions EVP_CIPHER_CTX_new() and EVP_CIPHER_CTX_free().
342 o Zlib compression usage fixes.
343 o Built in dynamic engine compilation support on Win32.
344 o Fixes auto dynamic engine loading in Win32.
346 Major changes between OpenSSL 0.9.8 and OpenSSL 0.9.8a [11 Oct 2005]:
348 o Fix potential SSL 2.0 rollback, CVE-2005-2969
349 o Extended Windows CE support
351 Major changes between OpenSSL 0.9.7g and OpenSSL 0.9.8 [5 Jul 2005]:
353 o Major work on the BIGNUM library for higher efficiency and to
354 make operations more streamlined and less contradictory. This
355 is the result of a major audit of the BIGNUM library.
356 o Addition of BIGNUM functions for fields GF(2^m) and NIST
357 curves, to support the Elliptic Crypto functions.
358 o Major work on Elliptic Crypto; ECDH and ECDSA added, including
359 the use through EVP, X509 and ENGINE.
360 o New ASN.1 mini-compiler that's usable through the OpenSSL
362 o Added support for ASN.1 indefinite length constructed encoding.
363 o New PKCS#12 'medium level' API to manipulate PKCS#12 files.
364 o Complete rework of shared library construction and linking
365 programs with shared or static libraries, through a separate
367 o Rework of the passing of parameters from one Makefile to another.
368 o Changed ENGINE framework to load dynamic engine modules
369 automatically from specifically given directories.
370 o New structure and ASN.1 functions for CertificatePair.
371 o Changed the ZLIB compression method to be stateful.
372 o Changed the key-generation and primality testing "progress"
373 mechanism to take a structure that contains the ticker
374 function and an argument.
375 o New engine module: GMP (performs private key exponentiation).
376 o New engine module: VIA PadLOck ACE extension in VIA C3
378 o Added support for IPv6 addresses in certificate extensions.
379 See RFC 1884, section 2.2.
380 o Added support for certificate policy mappings, policy
381 constraints and name constraints.
382 o Added support for multi-valued AVAs in the OpenSSL
384 o Added support for multiple certificates with the same subject
385 in the 'openssl ca' index file.
386 o Make it possible to create self-signed certificates using
387 'openssl ca -selfsign'.
388 o Make it possible to generate a serial number file with
389 'openssl ca -create_serial'.
390 o New binary search functions with extended functionality.
392 o New STORE structure and library to provide an interface to all
393 sorts of data repositories. Supports storage of public and
394 private keys, certificates, CRLs, numbers and arbitrary blobs.
395 This library is unfortunately unfinished and unused withing
397 o New control functions for the error stack.
398 o Changed the PKCS#7 library to support one-pass S/MIME
400 o Added the possibility to compile without old deprecated
401 functionality with the OPENSSL_NO_DEPRECATED macro or the
402 'no-deprecated' argument to the config and Configure scripts.
403 o Constification of all ASN.1 conversion functions, and other
405 o Improved platform support for PowerPC.
406 o New FIPS 180-2 algorithms (SHA-224, -256, -384 and -512).
407 o New X509_VERIFY_PARAM structure to support parametrisation
408 of X.509 path validation.
409 o Major overhaul of RC4 performance on Intel P4, IA-64 and
411 o Changed the Configure script to have some algorithms disabled
412 by default. Those can be explicitely enabled with the new
413 argument form 'enable-xxx'.
414 o Change the default digest in 'openssl' commands from MD5 to
416 o Added support for DTLS.
417 o New BIGNUM blinding.
418 o Added support for the RSA-PSS encryption scheme
419 o Added support for the RSA X.931 padding.
420 o Added support for BSD sockets on NetWare.
421 o Added support for files larger than 2GB.
422 o Added initial support for Win64.
423 o Added alternate pkg-config files.
425 Major changes between OpenSSL 0.9.7l and OpenSSL 0.9.7m [23 Feb 2007]:
427 o FIPS 1.1.1 module linking.
428 o Various ciphersuite selection fixes.
430 Major changes between OpenSSL 0.9.7k and OpenSSL 0.9.7l [28 Sep 2006]:
432 o Introduce limits to prevent malicious key DoS (CVE-2006-2940)
433 o Fix security issues (CVE-2006-2937, CVE-2006-3737, CVE-2006-4343)
435 Major changes between OpenSSL 0.9.7j and OpenSSL 0.9.7k [5 Sep 2006]:
437 o Fix Daniel Bleichenbacher forged signature attack, CVE-2006-4339
439 Major changes between OpenSSL 0.9.7i and OpenSSL 0.9.7j [4 May 2006]:
441 o Visual C++ 2005 fixes.
442 o Update Windows build system for FIPS.
444 Major changes between OpenSSL 0.9.7h and OpenSSL 0.9.7i [14 Oct 2005]:
446 o Give EVP_MAX_MD_SIZE it's old value, except for a FIPS build.
448 Major changes between OpenSSL 0.9.7g and OpenSSL 0.9.7h [11 Oct 2005]:
450 o Fix SSL 2.0 Rollback, CVE-2005-2969
451 o Allow use of fixed-length exponent on DSA signing
452 o Default fixed-window RSA, DSA, DH private-key operations
454 Major changes between OpenSSL 0.9.7f and OpenSSL 0.9.7g [11 Apr 2005]:
456 o More compilation issues fixed.
457 o Adaptation to more modern Kerberos API.
458 o Enhanced or corrected configuration for Solaris64, Mingw and Cygwin.
459 o Enhanced x86_64 assembler BIGNUM module.
460 o More constification.
461 o Added processing of proxy certificates (RFC 3820).
463 Major changes between OpenSSL 0.9.7e and OpenSSL 0.9.7f [22 Mar 2005]:
465 o Several compilation issues fixed.
466 o Many memory allocation failure checks added.
467 o Improved comparison of X509 Name type.
468 o Mandatory basic checks on certificates.
469 o Performance improvements.
471 Major changes between OpenSSL 0.9.7d and OpenSSL 0.9.7e [25 Oct 2004]:
473 o Fix race condition in CRL checking code.
474 o Fixes to PKCS#7 (S/MIME) code.
476 Major changes between OpenSSL 0.9.7c and OpenSSL 0.9.7d [17 Mar 2004]:
478 o Security: Fix Kerberos ciphersuite SSL/TLS handshaking bug
479 o Security: Fix null-pointer assignment in do_change_cipher_spec()
480 o Allow multiple active certificates with same subject in CA index
481 o Multiple X509 verification fixes
482 o Speed up HMAC and other operations
484 Major changes between OpenSSL 0.9.7b and OpenSSL 0.9.7c [30 Sep 2003]:
486 o Security: fix various ASN1 parsing bugs.
487 o New -ignore_err option to OCSP utility.
488 o Various interop and bug fixes in S/MIME code.
489 o SSL/TLS protocol fix for unrequested client certificates.
491 Major changes between OpenSSL 0.9.7a and OpenSSL 0.9.7b [10 Apr 2003]:
493 o Security: counter the Klima-Pokorny-Rosa extension of
494 Bleichbacher's attack
495 o Security: make RSA blinding default.
496 o Configuration: Irix fixes, AIX fixes, better mingw support.
497 o Support for new platforms: linux-ia64-ecc.
498 o Build: shared library support fixes.
499 o ASN.1: treat domainComponent correctly.
500 o Documentation: fixes and additions.
502 Major changes between OpenSSL 0.9.7 and OpenSSL 0.9.7a [19 Feb 2003]:
504 o Security: Important security related bugfixes.
505 o Enhanced compatibility with MIT Kerberos.
506 o Can be built without the ENGINE framework.
507 o IA32 assembler enhancements.
508 o Support for new platforms: FreeBSD/IA64 and FreeBSD/Sparc64.
509 o Configuration: the no-err option now works properly.
510 o SSL/TLS: now handles manual certificate chain building.
511 o SSL/TLS: certain session ID malfunctions corrected.
513 Major changes between OpenSSL 0.9.6 and OpenSSL 0.9.7 [30 Dec 2002]:
515 o New library section OCSP.
516 o Complete rewrite of ASN1 code.
517 o CRL checking in verify code and openssl utility.
518 o Extension copying in 'ca' utility.
519 o Flexible display options in 'ca' utility.
520 o Provisional support for international characters with UTF8.
521 o Support for external crypto devices ('engine') is no longer
522 a separate distribution.
523 o New elliptic curve library section.
524 o New AES (Rijndael) library section.
525 o Support for new platforms: Windows CE, Tandem OSS, A/UX, AIX 64-bit,
526 Linux x86_64, Linux 64-bit on Sparc v9
527 o Extended support for some platforms: VxWorks
528 o Enhanced support for shared libraries.
529 o Now only builds PIC code when shared library support is requested.
530 o Support for pkg-config.
531 o Lots of new manuals.
532 o Makes symbolic links to or copies of manuals to cover all described
534 o Change DES API to clean up the namespace (some applications link also
535 against libdes providing similar functions having the same name).
536 Provide macros for backward compatibility (will be removed in the
538 o Unify handling of cryptographic algorithms (software and engine)
539 to be available via EVP routines for asymmetric and symmetric ciphers.
540 o NCONF: new configuration handling routines.
541 o Change API to use more 'const' modifiers to improve error checking
543 o Finally remove references to RSAref.
544 o Reworked parts of the BIGNUM code.
545 o Support for new engines: Broadcom ubsec, Accelerated Encryption
546 Processing, IBM 4758.
547 o A few new engines added in the demos area.
548 o Extended and corrected OID (object identifier) table.
549 o PRNG: query at more locations for a random device, automatic query for
550 EGD style random sources at several locations.
551 o SSL/TLS: allow optional cipher choice according to server's preference.
552 o SSL/TLS: allow server to explicitly set new session ids.
553 o SSL/TLS: support Kerberos cipher suites (RFC2712).
554 Only supports MIT Kerberos for now.
555 o SSL/TLS: allow more precise control of renegotiations and sessions.
556 o SSL/TLS: add callback to retrieve SSL/TLS messages.
557 o SSL/TLS: support AES cipher suites (RFC3268).
559 Major changes between OpenSSL 0.9.6j and OpenSSL 0.9.6k [30 Sep 2003]:
561 o Security: fix various ASN1 parsing bugs.
562 o SSL/TLS protocol fix for unrequested client certificates.
564 Major changes between OpenSSL 0.9.6i and OpenSSL 0.9.6j [10 Apr 2003]:
566 o Security: counter the Klima-Pokorny-Rosa extension of
567 Bleichbacher's attack
568 o Security: make RSA blinding default.
569 o Build: shared library support fixes.
571 Major changes between OpenSSL 0.9.6h and OpenSSL 0.9.6i [19 Feb 2003]:
573 o Important security related bugfixes.
575 Major changes between OpenSSL 0.9.6g and OpenSSL 0.9.6h [5 Dec 2002]:
577 o New configuration targets for Tandem OSS and A/UX.
578 o New OIDs for Microsoft attributes.
579 o Better handling of SSL session caching.
580 o Better comparison of distinguished names.
581 o Better handling of shared libraries in a mixed GNU/non-GNU environment.
582 o Support assembler code with Borland C.
583 o Fixes for length problems.
584 o Fixes for uninitialised variables.
585 o Fixes for memory leaks, some unusual crashes and some race conditions.
586 o Fixes for smaller building problems.
587 o Updates of manuals, FAQ and other instructive documents.
589 Major changes between OpenSSL 0.9.6f and OpenSSL 0.9.6g [9 Aug 2002]:
591 o Important building fixes on Unix.
593 Major changes between OpenSSL 0.9.6e and OpenSSL 0.9.6f [8 Aug 2002]:
595 o Various important bugfixes.
597 Major changes between OpenSSL 0.9.6d and OpenSSL 0.9.6e [30 Jul 2002]:
599 o Important security related bugfixes.
600 o Various SSL/TLS library bugfixes.
602 Major changes between OpenSSL 0.9.6c and OpenSSL 0.9.6d [9 May 2002]:
604 o Various SSL/TLS library bugfixes.
605 o Fix DH parameter generation for 'non-standard' generators.
607 Major changes between OpenSSL 0.9.6b and OpenSSL 0.9.6c [21 Dec 2001]:
609 o Various SSL/TLS library bugfixes.
610 o BIGNUM library fixes.
611 o RSA OAEP and random number generation fixes.
612 o Object identifiers corrected and added.
613 o Add assembler BN routines for IA64.
614 o Add support for OS/390 Unix, UnixWare with gcc, OpenUNIX 8,
615 MIPS Linux; shared library support for Irix, HP-UX.
616 o Add crypto accelerator support for AEP, Baltimore SureWare,
617 Broadcom and Cryptographic Appliance's keyserver
618 [in 0.9.6c-engine release].
620 Major changes between OpenSSL 0.9.6a and OpenSSL 0.9.6b [9 Jul 2001]:
622 o Security fix: PRNG improvements.
623 o Security fix: RSA OAEP check.
624 o Security fix: Reinsert and fix countermeasure to Bleichbacher's
626 o MIPS bug fix in BIGNUM.
627 o Bug fix in "openssl enc".
628 o Bug fix in X.509 printing routine.
629 o Bug fix in DSA verification routine and DSA S/MIME verification.
630 o Bug fix to make PRNG thread-safe.
631 o Bug fix in RAND_file_name().
632 o Bug fix in compatibility mode trust settings.
633 o Bug fix in blowfish EVP.
634 o Increase default size for BIO buffering filter.
635 o Compatibility fixes in some scripts.
637 Major changes between OpenSSL 0.9.6 and OpenSSL 0.9.6a [5 Apr 2001]:
639 o Security fix: change behavior of OpenSSL to avoid using
640 environment variables when running as root.
641 o Security fix: check the result of RSA-CRT to reduce the
642 possibility of deducing the private key from an incorrectly
643 calculated signature.
644 o Security fix: prevent Bleichenbacher's DSA attack.
645 o Security fix: Zero the premaster secret after deriving the
646 master secret in DH ciphersuites.
647 o Reimplement SSL_peek(), which had various problems.
648 o Compatibility fix: the function des_encrypt() renamed to
649 des_encrypt1() to avoid clashes with some Unixen libc.
650 o Bug fixes for Win32, HP/UX and Irix.
651 o Bug fixes in BIGNUM, SSL, PKCS#7, PKCS#12, X.509, CONF and
652 memory checking routines.
653 o Bug fixes for RSA operations in threaded environments.
654 o Bug fixes in misc. openssl applications.
655 o Remove a few potential memory leaks.
656 o Add tighter checks of BIGNUM routines.
657 o Shared library support has been reworked for generality.
658 o More documentation.
659 o New function BN_rand_range().
660 o Add "-rand" option to openssl s_client and s_server.
662 Major changes between OpenSSL 0.9.5a and OpenSSL 0.9.6 [10 Oct 2000]:
664 o Some documentation for BIO and SSL libraries.
665 o Enhanced chain verification using key identifiers.
666 o New sign and verify options to 'dgst' application.
667 o Support for DER and PEM encoded messages in 'smime' application.
668 o New 'rsautl' application, low level RSA utility.
670 o Bugfix for SSL rollback padding check.
671 o Support for external crypto devices [1].
672 o Enhanced EVP interface.
674 [1] The support for external crypto devices is currently a separate
675 distribution. See the file README.ENGINE.
677 Major changes between OpenSSL 0.9.5 and OpenSSL 0.9.5a [1 Apr 2000]:
679 o Bug fixes for Win32, SuSE Linux, NeXTSTEP and FreeBSD 2.2.8
680 o Shared library support for HPUX and Solaris-gcc
681 o Support of Linux/IA64
682 o Assembler support for Mingw32
683 o New 'rand' application
684 o New way to check for existence of algorithms from scripts
686 Major changes between OpenSSL 0.9.4 and OpenSSL 0.9.5 [25 May 2000]:
688 o S/MIME support in new 'smime' command
689 o Documentation for the OpenSSL command line application
690 o Automation of 'req' application
691 o Fixes to make s_client, s_server work under Windows
692 o Support for multiple fieldnames in SPKACs
693 o New SPKAC command line utilty and associated library functions
694 o Options to allow passwords to be obtained from various sources
695 o New public key PEM format and options to handle it
696 o Many other fixes and enhancements to command line utilities
697 o Usable certificate chain verification
698 o Certificate purpose checking
699 o Certificate trust settings
700 o Support of authority information access extension
701 o Extensions in certificate requests
702 o Simplified X509 name and attribute routines
703 o Initial (incomplete) support for international character sets
704 o New DH_METHOD, DSA_METHOD and enhanced RSA_METHOD
705 o Read only memory BIOs and simplified creation function
706 o TLS/SSL protocol bugfixes: Accept TLS 'client hello' in SSL 3.0
707 record; allow fragmentation and interleaving of handshake and other
709 o TLS/SSL code now "tolerates" MS SGC
710 o Work around for Netscape client certificate hang bug
711 o RSA_NULL option that removes RSA patent code but keeps other
713 o Memory leak detection now allows applications to add extra information
714 via a per-thread stack
715 o PRNG robustness improved
717 o BIGNUM library bug fixes
718 o Faster DSA parameter generation
719 o Enhanced support for Alpha Linux
720 o Experimental MacOS support
722 Major changes between OpenSSL 0.9.3 and OpenSSL 0.9.4 [9 Aug 1999]:
724 o Transparent support for PKCS#8 format private keys: these are used
725 by several software packages and are more secure than the standard
727 o PKCS#5 v2.0 implementation
728 o Password callbacks have a new void * argument for application data
729 o Avoid various memory leaks
730 o New pipe-like BIO that allows using the SSL library when actual I/O
731 must be handled by the application (BIO pair)
733 Major changes between OpenSSL 0.9.2b and OpenSSL 0.9.3 [24 May 1999]:
734 o Lots of enhancements and cleanups to the Configuration mechanism
735 o RSA OEAP related fixes
736 o Added `openssl ca -revoke' option for revoking a certificate
737 o Source cleanups: const correctness, type-safe stacks and ASN.1 SETs
738 o Source tree cleanups: removed lots of obsolete files
739 o Thawte SXNet, certificate policies and CRL distribution points
741 o Preliminary (experimental) S/MIME support
742 o Support for ASN.1 UTF8String and VisibleString
743 o Full integration of PKCS#12 code
744 o Sparc assembler bignum implementation, optimized hash functions
745 o Option to disable selected ciphers
747 Major changes between OpenSSL 0.9.1c and OpenSSL 0.9.2b [22 Mar 1999]:
748 o Fixed a security hole related to session resumption
749 o Fixed RSA encryption routines for the p < q case
750 o "ALL" in cipher lists now means "everything except NULL ciphers"
751 o Support for Triple-DES CBCM cipher
752 o Support of Optimal Asymmetric Encryption Padding (OAEP) for RSA
753 o First support for new TLSv1 ciphers
754 o Added a few new BIOs (syslog BIO, reliable BIO)
755 o Extended support for DSA certificate/keys.
756 o Extended support for Certificate Signing Requests (CSR)
757 o Initial support for X.509v3 extensions
758 o Extended support for compression inside the SSL record layer
759 o Overhauled Win32 builds
760 o Cleanups and fixes to the Big Number (BN) library
761 o Support for ASN.1 GeneralizedTime
762 o Splitted ASN.1 SETs from SEQUENCEs
763 o ASN1 and PEM support for Netscape Certificate Sequences
764 o Overhauled Perl interface
765 o Lots of source tree cleanups.
766 o Lots of memory leak fixes.
769 Major changes between SSLeay 0.9.0b and OpenSSL 0.9.1c [23 Dec 1998]:
770 o Integration of the popular NO_RSA/NO_DSA patches
771 o Initial support for compression inside the SSL record layer
772 o Added BIO proxy and filtering functionality
773 o Extended Big Number (BN) library
774 o Added RIPE MD160 message digest
775 o Addeed support for RC2/64bit cipher
776 o Extended ASN.1 parser routines
777 o Adjustations of the source tree for CVS
778 o Support for various new platforms