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 1.0.2g and OpenSSL 1.1.0 [in pre-release]
10 o Added support for "pipelining"
11 o Added the AFALG engine
12 o New threading API implemented
13 o Support for ChaCha20 and Poly1305 added to libcrypto and libssl
14 o Support for extended master secret
16 o Reworked test suite, now based on perl, Test::Harness and Test::More
17 o Various libcrypto structures made opaque including: BIGNUM, EVP_MD,
18 EVP_MD_CTX, HMAC_CTX, EVP_CIPHER and EVP_CIPHER_CTX.
19 o libssl internal structures made opaque
20 o SSLv2 support removed
21 o Kerberos ciphersuite support removed
22 o RC4 removed from DEFAULT ciphersuites in libssl
23 o 40 and 56 bit cipher support removed from libssl
24 o All public header files moved to include/openssl, no more symlinking
25 o SSL/TLS state machine, version negotiation and record layer rewritten
26 o EC revision: now operations use new EC_KEY_METHOD.
27 o Support for OCB mode added to libcrypto
28 o Support for asynchronous crypto operations added to libcrypto and libssl
29 o Deprecated interfaces can now be disabled at build time either
30 relative to the latest release via the "no-deprecated" Configure
31 argument, or via the "--api=1.1.0|1.0.0|0.9.8" option.
32 o Application software can be compiled with -DOPENSSL_API_COMPAT=version
33 to ensure that features deprecated in that version are not exposed.
34 o Support for RFC6698/RFC7671 DANE TLSA peer authentication
35 o Change of Configure to use --prefix as the main installation
36 directory location rather than --openssldir. The latter becomes
37 the directory for certs, private key and openssl.cnf exclusively.
38 o Reworked BIO networking library, with full support for IPv6.
39 o New "unified" build system
41 o Support for scrypt algorithm
43 o Extended SSL_CONF support using configuration files
44 o KDF algorithm support. Implement TLS PRF as a KDF.
45 o Support for Certificate Transparency
47 Major changes between OpenSSL 1.0.2f and OpenSSL 1.0.2g [1 Mar 2016]
49 o Disable weak ciphers in SSLv3 and up in default builds of OpenSSL.
50 o Disable SSLv2 default build, default negotiation and weak ciphers
52 o Fix a double-free in DSA code (CVE-2016-0705)
53 o Disable SRP fake user seed to address a server memory leak
55 o Fix BN_hex2bn/BN_dec2bn NULL pointer deref/heap corruption
57 o Fix memory issues in BIO_*printf functions (CVE-2016-0799)
58 o Fix side channel attack on modular exponentiation (CVE-2016-0702)
60 Major changes between OpenSSL 1.0.2e and OpenSSL 1.0.2f [28 Jan 2016]
62 o DH small subgroups (CVE-2016-0701)
63 o SSLv2 doesn't block disabled ciphers (CVE-2015-3197)
65 Major changes between OpenSSL 1.0.2d and OpenSSL 1.0.2e [3 Dec 2015]
67 o BN_mod_exp may produce incorrect results on x86_64 (CVE-2015-3193)
68 o Certificate verify crash with missing PSS parameter (CVE-2015-3194)
69 o X509_ATTRIBUTE memory leak (CVE-2015-3195)
70 o Rewrite EVP_DecodeUpdate (base64 decoding) to fix several bugs
71 o In DSA_generate_parameters_ex, if the provided seed is too short,
74 Major changes between OpenSSL 1.0.2c and OpenSSL 1.0.2d [9 Jul 2015]
76 o Alternate chains certificate forgery (CVE-2015-1793)
77 o Race condition handling PSK identify hint (CVE-2015-3196)
79 Major changes between OpenSSL 1.0.2b and OpenSSL 1.0.2c [12 Jun 2015]
81 o Fix HMAC ABI incompatibility
83 Major changes between OpenSSL 1.0.2a and OpenSSL 1.0.2b [11 Jun 2015]
85 o Malformed ECParameters causes infinite loop (CVE-2015-1788)
86 o Exploitable out-of-bounds read in X509_cmp_time (CVE-2015-1789)
87 o PKCS7 crash with missing EnvelopedContent (CVE-2015-1790)
88 o CMS verify infinite loop with unknown hash function (CVE-2015-1792)
89 o Race condition handling NewSessionTicket (CVE-2015-1791)
91 Major changes between OpenSSL 1.0.2 and OpenSSL 1.0.2a [19 Mar 2015]
93 o OpenSSL 1.0.2 ClientHello sigalgs DoS fix (CVE-2015-0291)
94 o Multiblock corrupted pointer fix (CVE-2015-0290)
95 o Segmentation fault in DTLSv1_listen fix (CVE-2015-0207)
96 o Segmentation fault in ASN1_TYPE_cmp fix (CVE-2015-0286)
97 o Segmentation fault for invalid PSS parameters fix (CVE-2015-0208)
98 o ASN.1 structure reuse memory corruption fix (CVE-2015-0287)
99 o PKCS7 NULL pointer dereferences fix (CVE-2015-0289)
100 o DoS via reachable assert in SSLv2 servers fix (CVE-2015-0293)
101 o Empty CKE with client auth and DHE fix (CVE-2015-1787)
102 o Handshake with unseeded PRNG fix (CVE-2015-0285)
103 o Use After Free following d2i_ECPrivatekey error fix (CVE-2015-0209)
104 o X509_to_X509_REQ NULL pointer deref fix (CVE-2015-0288)
105 o Removed the export ciphers from the DEFAULT ciphers
107 Major changes between OpenSSL 1.0.1l and OpenSSL 1.0.2 [22 Jan 2015]:
109 o Suite B support for TLS 1.2 and DTLS 1.2
110 o Support for DTLS 1.2
111 o TLS automatic EC curve selection.
112 o API to set TLS supported signature algorithms and curves
113 o SSL_CONF configuration API.
114 o TLS Brainpool support.
116 o CMS support for RSA-PSS, RSA-OAEP, ECDH and X9.42 DH.
118 Major changes between OpenSSL 1.0.1k and OpenSSL 1.0.1l [15 Jan 2015]
120 o Build fixes for the Windows and OpenVMS platforms
122 Major changes between OpenSSL 1.0.1j and OpenSSL 1.0.1k [8 Jan 2015]
124 o Fix for CVE-2014-3571
125 o Fix for CVE-2015-0206
126 o Fix for CVE-2014-3569
127 o Fix for CVE-2014-3572
128 o Fix for CVE-2015-0204
129 o Fix for CVE-2015-0205
130 o Fix for CVE-2014-8275
131 o Fix for CVE-2014-3570
133 Major changes between OpenSSL 1.0.1i and OpenSSL 1.0.1j [15 Oct 2014]
135 o Fix for CVE-2014-3513
136 o Fix for CVE-2014-3567
137 o Mitigation for CVE-2014-3566 (SSL protocol vulnerability)
138 o Fix for CVE-2014-3568
140 Major changes between OpenSSL 1.0.1h and OpenSSL 1.0.1i [6 Aug 2014]
142 o Fix for CVE-2014-3512
143 o Fix for CVE-2014-3511
144 o Fix for CVE-2014-3510
145 o Fix for CVE-2014-3507
146 o Fix for CVE-2014-3506
147 o Fix for CVE-2014-3505
148 o Fix for CVE-2014-3509
149 o Fix for CVE-2014-5139
150 o Fix for CVE-2014-3508
152 Major changes between OpenSSL 1.0.1g and OpenSSL 1.0.1h [5 Jun 2014]
154 o Fix for CVE-2014-0224
155 o Fix for CVE-2014-0221
156 o Fix for CVE-2014-0198
157 o Fix for CVE-2014-0195
158 o Fix for CVE-2014-3470
159 o Fix for CVE-2010-5298
161 Major changes between OpenSSL 1.0.1f and OpenSSL 1.0.1g [7 Apr 2014]
163 o Fix for CVE-2014-0160
164 o Add TLS padding extension workaround for broken servers.
165 o Fix for CVE-2014-0076
167 Major changes between OpenSSL 1.0.1e and OpenSSL 1.0.1f [6 Jan 2014]
169 o Don't include gmt_unix_time in TLS server and client random values
170 o Fix for TLS record tampering bug CVE-2013-4353
171 o Fix for TLS version checking bug CVE-2013-6449
172 o Fix for DTLS retransmission bug CVE-2013-6450
174 Major changes between OpenSSL 1.0.1d and OpenSSL 1.0.1e [11 Feb 2013]:
176 o Corrected fix for CVE-2013-0169
178 Major changes between OpenSSL 1.0.1c and OpenSSL 1.0.1d [4 Feb 2013]:
180 o Fix renegotiation in TLS 1.1, 1.2 by using the correct TLS version.
181 o Include the fips configuration module.
182 o Fix OCSP bad key DoS attack CVE-2013-0166
183 o Fix for SSL/TLS/DTLS CBC plaintext recovery attack CVE-2013-0169
184 o Fix for TLS AESNI record handling flaw CVE-2012-2686
186 Major changes between OpenSSL 1.0.1b and OpenSSL 1.0.1c [10 May 2012]:
188 o Fix TLS/DTLS record length checking bug CVE-2012-2333
189 o Don't attempt to use non-FIPS composite ciphers in FIPS mode.
191 Major changes between OpenSSL 1.0.1a and OpenSSL 1.0.1b [26 Apr 2012]:
193 o Fix compilation error on non-x86 platforms.
194 o Make FIPS capable OpenSSL ciphers work in non-FIPS mode.
195 o Fix SSL_OP_NO_TLSv1_1 clash with SSL_OP_ALL in OpenSSL 1.0.0
197 Major changes between OpenSSL 1.0.1 and OpenSSL 1.0.1a [19 Apr 2012]:
199 o Fix for ASN1 overflow bug CVE-2012-2110
200 o Workarounds for some servers that hang on long client hellos.
201 o Fix SEGV in AES code.
203 Major changes between OpenSSL 1.0.0h and OpenSSL 1.0.1 [14 Mar 2012]:
205 o TLS/DTLS heartbeat support.
207 o RFC 5705 TLS key material exporter.
208 o RFC 5764 DTLS-SRTP negotiation.
209 o Next Protocol Negotiation.
210 o PSS signatures in certificates, requests and CRLs.
211 o Support for password based recipient info for CMS.
212 o Support TLS v1.2 and TLS v1.1.
213 o Preliminary FIPS capability for unvalidated 2.0 FIPS module.
216 Major changes between OpenSSL 1.0.0g and OpenSSL 1.0.0h [12 Mar 2012]:
218 o Fix for CMS/PKCS#7 MMA CVE-2012-0884
219 o Corrected fix for CVE-2011-4619
220 o Various DTLS fixes.
222 Major changes between OpenSSL 1.0.0f and OpenSSL 1.0.0g [18 Jan 2012]:
224 o Fix for DTLS DoS issue CVE-2012-0050
226 Major changes between OpenSSL 1.0.0e and OpenSSL 1.0.0f [4 Jan 2012]:
228 o Fix for DTLS plaintext recovery attack CVE-2011-4108
229 o Clear block padding bytes of SSL 3.0 records CVE-2011-4576
230 o Only allow one SGC handshake restart for SSL/TLS CVE-2011-4619
231 o Check parameters are not NULL in GOST ENGINE CVE-2012-0027
232 o Check for malformed RFC3779 data CVE-2011-4577
234 Major changes between OpenSSL 1.0.0d and OpenSSL 1.0.0e [6 Sep 2011]:
236 o Fix for CRL vulnerability issue CVE-2011-3207
237 o Fix for ECDH crashes CVE-2011-3210
238 o Protection against EC timing attacks.
239 o Support ECDH ciphersuites for certificates using SHA2 algorithms.
240 o Various DTLS fixes.
242 Major changes between OpenSSL 1.0.0c and OpenSSL 1.0.0d [8 Feb 2011]:
244 o Fix for security issue CVE-2011-0014
246 Major changes between OpenSSL 1.0.0b and OpenSSL 1.0.0c [2 Dec 2010]:
248 o Fix for security issue CVE-2010-4180
249 o Fix for CVE-2010-4252
250 o Fix mishandling of absent EC point format extension.
251 o Fix various platform compilation issues.
252 o Corrected fix for security issue CVE-2010-3864.
254 Major changes between OpenSSL 1.0.0a and OpenSSL 1.0.0b [16 Nov 2010]:
256 o Fix for security issue CVE-2010-3864.
257 o Fix for CVE-2010-2939
258 o Fix WIN32 build system for GOST ENGINE.
260 Major changes between OpenSSL 1.0.0 and OpenSSL 1.0.0a [1 Jun 2010]:
262 o Fix for security issue CVE-2010-1633.
263 o GOST MAC and CFB fixes.
265 Major changes between OpenSSL 0.9.8n and OpenSSL 1.0.0 [29 Mar 2010]:
267 o RFC3280 path validation: sufficient to process PKITS tests.
268 o Integrated support for PVK files and keyblobs.
269 o Change default private key format to PKCS#8.
270 o CMS support: able to process all examples in RFC4134
271 o Streaming ASN1 encode support for PKCS#7 and CMS.
272 o Multiple signer and signer add support for PKCS#7 and CMS.
273 o ASN1 printing support.
274 o Whirlpool hash algorithm added.
275 o RFC3161 time stamp support.
276 o New generalised public key API supporting ENGINE based algorithms.
277 o New generalised public key API utilities.
278 o New ENGINE supporting GOST algorithms.
279 o SSL/TLS GOST ciphersuite support.
280 o PKCS#7 and CMS GOST support.
281 o RFC4279 PSK ciphersuite support.
282 o Supported points format extension for ECC ciphersuites.
283 o ecdsa-with-SHA224/256/384/512 signature types.
284 o dsa-with-SHA224 and dsa-with-SHA256 signature types.
285 o Opaque PRF Input TLS extension support.
286 o Updated time routines to avoid OS limitations.
288 Major changes between OpenSSL 0.9.8m and OpenSSL 0.9.8n [24 Mar 2010]:
290 o CFB cipher definition fixes.
291 o Fix security issues CVE-2010-0740 and CVE-2010-0433.
293 Major changes between OpenSSL 0.9.8l and OpenSSL 0.9.8m [25 Feb 2010]:
295 o Cipher definition fixes.
296 o Workaround for slow RAND_poll() on some WIN32 versions.
297 o Remove MD2 from algorithm tables.
298 o SPKAC handling fixes.
299 o Support for RFC5746 TLS renegotiation extension.
300 o Compression memory leak fixed.
301 o Compression session resumption fixed.
302 o Ticket and SNI coexistence fixes.
303 o Many fixes to DTLS handling.
305 Major changes between OpenSSL 0.9.8k and OpenSSL 0.9.8l [5 Nov 2009]:
307 o Temporary work around for CVE-2009-3555: disable renegotiation.
309 Major changes between OpenSSL 0.9.8j and OpenSSL 0.9.8k [25 Mar 2009]:
311 o Fix various build issues.
312 o Fix security issues (CVE-2009-0590, CVE-2009-0591, CVE-2009-0789)
314 Major changes between OpenSSL 0.9.8i and OpenSSL 0.9.8j [7 Jan 2009]:
316 o Fix security issue (CVE-2008-5077)
317 o Merge FIPS 140-2 branch code.
319 Major changes between OpenSSL 0.9.8g and OpenSSL 0.9.8h [28 May 2008]:
321 o CryptoAPI ENGINE support.
322 o Various precautionary measures.
323 o Fix for bugs affecting certificate request creation.
324 o Support for local machine keyset attribute in PKCS#12 files.
326 Major changes between OpenSSL 0.9.8f and OpenSSL 0.9.8g [19 Oct 2007]:
328 o Backport of CMS functionality to 0.9.8.
329 o Fixes for bugs introduced with 0.9.8f.
331 Major changes between OpenSSL 0.9.8e and OpenSSL 0.9.8f [11 Oct 2007]:
333 o Add gcc 4.2 support.
334 o Add support for AES and SSE2 assembly language optimization
336 o Support for RFC4507bis and server name extensions if explicitly
337 selected at compile time.
339 o RFC4507bis support.
340 o TLS Extensions support.
342 Major changes between OpenSSL 0.9.8d and OpenSSL 0.9.8e [23 Feb 2007]:
344 o Various ciphersuite selection fixes.
347 Major changes between OpenSSL 0.9.8c and OpenSSL 0.9.8d [28 Sep 2006]:
349 o Introduce limits to prevent malicious key DoS (CVE-2006-2940)
350 o Fix security issues (CVE-2006-2937, CVE-2006-3737, CVE-2006-4343)
351 o Changes to ciphersuite selection algorithm
353 Major changes between OpenSSL 0.9.8b and OpenSSL 0.9.8c [5 Sep 2006]:
355 o Fix Daniel Bleichenbacher forged signature attack, CVE-2006-4339
356 o New cipher Camellia
358 Major changes between OpenSSL 0.9.8a and OpenSSL 0.9.8b [4 May 2006]:
360 o Cipher string fixes.
361 o Fixes for VC++ 2005.
362 o Updated ECC cipher suite support.
363 o New functions EVP_CIPHER_CTX_new() and EVP_CIPHER_CTX_free().
364 o Zlib compression usage fixes.
365 o Built in dynamic engine compilation support on Win32.
366 o Fixes auto dynamic engine loading in Win32.
368 Major changes between OpenSSL 0.9.8 and OpenSSL 0.9.8a [11 Oct 2005]:
370 o Fix potential SSL 2.0 rollback, CVE-2005-2969
371 o Extended Windows CE support
373 Major changes between OpenSSL 0.9.7g and OpenSSL 0.9.8 [5 Jul 2005]:
375 o Major work on the BIGNUM library for higher efficiency and to
376 make operations more streamlined and less contradictory. This
377 is the result of a major audit of the BIGNUM library.
378 o Addition of BIGNUM functions for fields GF(2^m) and NIST
379 curves, to support the Elliptic Crypto functions.
380 o Major work on Elliptic Crypto; ECDH and ECDSA added, including
381 the use through EVP, X509 and ENGINE.
382 o New ASN.1 mini-compiler that's usable through the OpenSSL
384 o Added support for ASN.1 indefinite length constructed encoding.
385 o New PKCS#12 'medium level' API to manipulate PKCS#12 files.
386 o Complete rework of shared library construction and linking
387 programs with shared or static libraries, through a separate
389 o Rework of the passing of parameters from one Makefile to another.
390 o Changed ENGINE framework to load dynamic engine modules
391 automatically from specifically given directories.
392 o New structure and ASN.1 functions for CertificatePair.
393 o Changed the ZLIB compression method to be stateful.
394 o Changed the key-generation and primality testing "progress"
395 mechanism to take a structure that contains the ticker
396 function and an argument.
397 o New engine module: GMP (performs private key exponentiation).
398 o New engine module: VIA PadLOck ACE extension in VIA C3
400 o Added support for IPv6 addresses in certificate extensions.
401 See RFC 1884, section 2.2.
402 o Added support for certificate policy mappings, policy
403 constraints and name constraints.
404 o Added support for multi-valued AVAs in the OpenSSL
406 o Added support for multiple certificates with the same subject
407 in the 'openssl ca' index file.
408 o Make it possible to create self-signed certificates using
409 'openssl ca -selfsign'.
410 o Make it possible to generate a serial number file with
411 'openssl ca -create_serial'.
412 o New binary search functions with extended functionality.
414 o New STORE structure and library to provide an interface to all
415 sorts of data repositories. Supports storage of public and
416 private keys, certificates, CRLs, numbers and arbitrary blobs.
417 This library is unfortunately unfinished and unused withing
419 o New control functions for the error stack.
420 o Changed the PKCS#7 library to support one-pass S/MIME
422 o Added the possibility to compile without old deprecated
423 functionality with the OPENSSL_NO_DEPRECATED macro or the
424 'no-deprecated' argument to the config and Configure scripts.
425 o Constification of all ASN.1 conversion functions, and other
427 o Improved platform support for PowerPC.
428 o New FIPS 180-2 algorithms (SHA-224, -256, -384 and -512).
429 o New X509_VERIFY_PARAM structure to support parametrisation
430 of X.509 path validation.
431 o Major overhaul of RC4 performance on Intel P4, IA-64 and
433 o Changed the Configure script to have some algorithms disabled
434 by default. Those can be explicitely enabled with the new
435 argument form 'enable-xxx'.
436 o Change the default digest in 'openssl' commands from MD5 to
438 o Added support for DTLS.
439 o New BIGNUM blinding.
440 o Added support for the RSA-PSS encryption scheme
441 o Added support for the RSA X.931 padding.
442 o Added support for BSD sockets on NetWare.
443 o Added support for files larger than 2GB.
444 o Added initial support for Win64.
445 o Added alternate pkg-config files.
447 Major changes between OpenSSL 0.9.7l and OpenSSL 0.9.7m [23 Feb 2007]:
449 o FIPS 1.1.1 module linking.
450 o Various ciphersuite selection fixes.
452 Major changes between OpenSSL 0.9.7k and OpenSSL 0.9.7l [28 Sep 2006]:
454 o Introduce limits to prevent malicious key DoS (CVE-2006-2940)
455 o Fix security issues (CVE-2006-2937, CVE-2006-3737, CVE-2006-4343)
457 Major changes between OpenSSL 0.9.7j and OpenSSL 0.9.7k [5 Sep 2006]:
459 o Fix Daniel Bleichenbacher forged signature attack, CVE-2006-4339
461 Major changes between OpenSSL 0.9.7i and OpenSSL 0.9.7j [4 May 2006]:
463 o Visual C++ 2005 fixes.
464 o Update Windows build system for FIPS.
466 Major changes between OpenSSL 0.9.7h and OpenSSL 0.9.7i [14 Oct 2005]:
468 o Give EVP_MAX_MD_SIZE it's old value, except for a FIPS build.
470 Major changes between OpenSSL 0.9.7g and OpenSSL 0.9.7h [11 Oct 2005]:
472 o Fix SSL 2.0 Rollback, CVE-2005-2969
473 o Allow use of fixed-length exponent on DSA signing
474 o Default fixed-window RSA, DSA, DH private-key operations
476 Major changes between OpenSSL 0.9.7f and OpenSSL 0.9.7g [11 Apr 2005]:
478 o More compilation issues fixed.
479 o Adaptation to more modern Kerberos API.
480 o Enhanced or corrected configuration for Solaris64, Mingw and Cygwin.
481 o Enhanced x86_64 assembler BIGNUM module.
482 o More constification.
483 o Added processing of proxy certificates (RFC 3820).
485 Major changes between OpenSSL 0.9.7e and OpenSSL 0.9.7f [22 Mar 2005]:
487 o Several compilation issues fixed.
488 o Many memory allocation failure checks added.
489 o Improved comparison of X509 Name type.
490 o Mandatory basic checks on certificates.
491 o Performance improvements.
493 Major changes between OpenSSL 0.9.7d and OpenSSL 0.9.7e [25 Oct 2004]:
495 o Fix race condition in CRL checking code.
496 o Fixes to PKCS#7 (S/MIME) code.
498 Major changes between OpenSSL 0.9.7c and OpenSSL 0.9.7d [17 Mar 2004]:
500 o Security: Fix Kerberos ciphersuite SSL/TLS handshaking bug
501 o Security: Fix null-pointer assignment in do_change_cipher_spec()
502 o Allow multiple active certificates with same subject in CA index
503 o Multiple X509 verification fixes
504 o Speed up HMAC and other operations
506 Major changes between OpenSSL 0.9.7b and OpenSSL 0.9.7c [30 Sep 2003]:
508 o Security: fix various ASN1 parsing bugs.
509 o New -ignore_err option to OCSP utility.
510 o Various interop and bug fixes in S/MIME code.
511 o SSL/TLS protocol fix for unrequested client certificates.
513 Major changes between OpenSSL 0.9.7a and OpenSSL 0.9.7b [10 Apr 2003]:
515 o Security: counter the Klima-Pokorny-Rosa extension of
516 Bleichbacher's attack
517 o Security: make RSA blinding default.
518 o Configuration: Irix fixes, AIX fixes, better mingw support.
519 o Support for new platforms: linux-ia64-ecc.
520 o Build: shared library support fixes.
521 o ASN.1: treat domainComponent correctly.
522 o Documentation: fixes and additions.
524 Major changes between OpenSSL 0.9.7 and OpenSSL 0.9.7a [19 Feb 2003]:
526 o Security: Important security related bugfixes.
527 o Enhanced compatibility with MIT Kerberos.
528 o Can be built without the ENGINE framework.
529 o IA32 assembler enhancements.
530 o Support for new platforms: FreeBSD/IA64 and FreeBSD/Sparc64.
531 o Configuration: the no-err option now works properly.
532 o SSL/TLS: now handles manual certificate chain building.
533 o SSL/TLS: certain session ID malfunctions corrected.
535 Major changes between OpenSSL 0.9.6 and OpenSSL 0.9.7 [30 Dec 2002]:
537 o New library section OCSP.
538 o Complete rewrite of ASN1 code.
539 o CRL checking in verify code and openssl utility.
540 o Extension copying in 'ca' utility.
541 o Flexible display options in 'ca' utility.
542 o Provisional support for international characters with UTF8.
543 o Support for external crypto devices ('engine') is no longer
544 a separate distribution.
545 o New elliptic curve library section.
546 o New AES (Rijndael) library section.
547 o Support for new platforms: Windows CE, Tandem OSS, A/UX, AIX 64-bit,
548 Linux x86_64, Linux 64-bit on Sparc v9
549 o Extended support for some platforms: VxWorks
550 o Enhanced support for shared libraries.
551 o Now only builds PIC code when shared library support is requested.
552 o Support for pkg-config.
553 o Lots of new manuals.
554 o Makes symbolic links to or copies of manuals to cover all described
556 o Change DES API to clean up the namespace (some applications link also
557 against libdes providing similar functions having the same name).
558 Provide macros for backward compatibility (will be removed in the
560 o Unify handling of cryptographic algorithms (software and engine)
561 to be available via EVP routines for asymmetric and symmetric ciphers.
562 o NCONF: new configuration handling routines.
563 o Change API to use more 'const' modifiers to improve error checking
565 o Finally remove references to RSAref.
566 o Reworked parts of the BIGNUM code.
567 o Support for new engines: Broadcom ubsec, Accelerated Encryption
568 Processing, IBM 4758.
569 o A few new engines added in the demos area.
570 o Extended and corrected OID (object identifier) table.
571 o PRNG: query at more locations for a random device, automatic query for
572 EGD style random sources at several locations.
573 o SSL/TLS: allow optional cipher choice according to server's preference.
574 o SSL/TLS: allow server to explicitly set new session ids.
575 o SSL/TLS: support Kerberos cipher suites (RFC2712).
576 Only supports MIT Kerberos for now.
577 o SSL/TLS: allow more precise control of renegotiations and sessions.
578 o SSL/TLS: add callback to retrieve SSL/TLS messages.
579 o SSL/TLS: support AES cipher suites (RFC3268).
581 Major changes between OpenSSL 0.9.6j and OpenSSL 0.9.6k [30 Sep 2003]:
583 o Security: fix various ASN1 parsing bugs.
584 o SSL/TLS protocol fix for unrequested client certificates.
586 Major changes between OpenSSL 0.9.6i and OpenSSL 0.9.6j [10 Apr 2003]:
588 o Security: counter the Klima-Pokorny-Rosa extension of
589 Bleichbacher's attack
590 o Security: make RSA blinding default.
591 o Build: shared library support fixes.
593 Major changes between OpenSSL 0.9.6h and OpenSSL 0.9.6i [19 Feb 2003]:
595 o Important security related bugfixes.
597 Major changes between OpenSSL 0.9.6g and OpenSSL 0.9.6h [5 Dec 2002]:
599 o New configuration targets for Tandem OSS and A/UX.
600 o New OIDs for Microsoft attributes.
601 o Better handling of SSL session caching.
602 o Better comparison of distinguished names.
603 o Better handling of shared libraries in a mixed GNU/non-GNU environment.
604 o Support assembler code with Borland C.
605 o Fixes for length problems.
606 o Fixes for uninitialised variables.
607 o Fixes for memory leaks, some unusual crashes and some race conditions.
608 o Fixes for smaller building problems.
609 o Updates of manuals, FAQ and other instructive documents.
611 Major changes between OpenSSL 0.9.6f and OpenSSL 0.9.6g [9 Aug 2002]:
613 o Important building fixes on Unix.
615 Major changes between OpenSSL 0.9.6e and OpenSSL 0.9.6f [8 Aug 2002]:
617 o Various important bugfixes.
619 Major changes between OpenSSL 0.9.6d and OpenSSL 0.9.6e [30 Jul 2002]:
621 o Important security related bugfixes.
622 o Various SSL/TLS library bugfixes.
624 Major changes between OpenSSL 0.9.6c and OpenSSL 0.9.6d [9 May 2002]:
626 o Various SSL/TLS library bugfixes.
627 o Fix DH parameter generation for 'non-standard' generators.
629 Major changes between OpenSSL 0.9.6b and OpenSSL 0.9.6c [21 Dec 2001]:
631 o Various SSL/TLS library bugfixes.
632 o BIGNUM library fixes.
633 o RSA OAEP and random number generation fixes.
634 o Object identifiers corrected and added.
635 o Add assembler BN routines for IA64.
636 o Add support for OS/390 Unix, UnixWare with gcc, OpenUNIX 8,
637 MIPS Linux; shared library support for Irix, HP-UX.
638 o Add crypto accelerator support for AEP, Baltimore SureWare,
639 Broadcom and Cryptographic Appliance's keyserver
640 [in 0.9.6c-engine release].
642 Major changes between OpenSSL 0.9.6a and OpenSSL 0.9.6b [9 Jul 2001]:
644 o Security fix: PRNG improvements.
645 o Security fix: RSA OAEP check.
646 o Security fix: Reinsert and fix countermeasure to Bleichbacher's
648 o MIPS bug fix in BIGNUM.
649 o Bug fix in "openssl enc".
650 o Bug fix in X.509 printing routine.
651 o Bug fix in DSA verification routine and DSA S/MIME verification.
652 o Bug fix to make PRNG thread-safe.
653 o Bug fix in RAND_file_name().
654 o Bug fix in compatibility mode trust settings.
655 o Bug fix in blowfish EVP.
656 o Increase default size for BIO buffering filter.
657 o Compatibility fixes in some scripts.
659 Major changes between OpenSSL 0.9.6 and OpenSSL 0.9.6a [5 Apr 2001]:
661 o Security fix: change behavior of OpenSSL to avoid using
662 environment variables when running as root.
663 o Security fix: check the result of RSA-CRT to reduce the
664 possibility of deducing the private key from an incorrectly
665 calculated signature.
666 o Security fix: prevent Bleichenbacher's DSA attack.
667 o Security fix: Zero the premaster secret after deriving the
668 master secret in DH ciphersuites.
669 o Reimplement SSL_peek(), which had various problems.
670 o Compatibility fix: the function des_encrypt() renamed to
671 des_encrypt1() to avoid clashes with some Unixen libc.
672 o Bug fixes for Win32, HP/UX and Irix.
673 o Bug fixes in BIGNUM, SSL, PKCS#7, PKCS#12, X.509, CONF and
674 memory checking routines.
675 o Bug fixes for RSA operations in threaded environments.
676 o Bug fixes in misc. openssl applications.
677 o Remove a few potential memory leaks.
678 o Add tighter checks of BIGNUM routines.
679 o Shared library support has been reworked for generality.
680 o More documentation.
681 o New function BN_rand_range().
682 o Add "-rand" option to openssl s_client and s_server.
684 Major changes between OpenSSL 0.9.5a and OpenSSL 0.9.6 [10 Oct 2000]:
686 o Some documentation for BIO and SSL libraries.
687 o Enhanced chain verification using key identifiers.
688 o New sign and verify options to 'dgst' application.
689 o Support for DER and PEM encoded messages in 'smime' application.
690 o New 'rsautl' application, low level RSA utility.
692 o Bugfix for SSL rollback padding check.
693 o Support for external crypto devices [1].
694 o Enhanced EVP interface.
696 [1] The support for external crypto devices is currently a separate
697 distribution. See the file README.ENGINE.
699 Major changes between OpenSSL 0.9.5 and OpenSSL 0.9.5a [1 Apr 2000]:
701 o Bug fixes for Win32, SuSE Linux, NeXTSTEP and FreeBSD 2.2.8
702 o Shared library support for HPUX and Solaris-gcc
703 o Support of Linux/IA64
704 o Assembler support for Mingw32
705 o New 'rand' application
706 o New way to check for existence of algorithms from scripts
708 Major changes between OpenSSL 0.9.4 and OpenSSL 0.9.5 [25 May 2000]:
710 o S/MIME support in new 'smime' command
711 o Documentation for the OpenSSL command line application
712 o Automation of 'req' application
713 o Fixes to make s_client, s_server work under Windows
714 o Support for multiple fieldnames in SPKACs
715 o New SPKAC command line utilty and associated library functions
716 o Options to allow passwords to be obtained from various sources
717 o New public key PEM format and options to handle it
718 o Many other fixes and enhancements to command line utilities
719 o Usable certificate chain verification
720 o Certificate purpose checking
721 o Certificate trust settings
722 o Support of authority information access extension
723 o Extensions in certificate requests
724 o Simplified X509 name and attribute routines
725 o Initial (incomplete) support for international character sets
726 o New DH_METHOD, DSA_METHOD and enhanced RSA_METHOD
727 o Read only memory BIOs and simplified creation function
728 o TLS/SSL protocol bugfixes: Accept TLS 'client hello' in SSL 3.0
729 record; allow fragmentation and interleaving of handshake and other
731 o TLS/SSL code now "tolerates" MS SGC
732 o Work around for Netscape client certificate hang bug
733 o RSA_NULL option that removes RSA patent code but keeps other
735 o Memory leak detection now allows applications to add extra information
736 via a per-thread stack
737 o PRNG robustness improved
739 o BIGNUM library bug fixes
740 o Faster DSA parameter generation
741 o Enhanced support for Alpha Linux
742 o Experimental MacOS support
744 Major changes between OpenSSL 0.9.3 and OpenSSL 0.9.4 [9 Aug 1999]:
746 o Transparent support for PKCS#8 format private keys: these are used
747 by several software packages and are more secure than the standard
749 o PKCS#5 v2.0 implementation
750 o Password callbacks have a new void * argument for application data
751 o Avoid various memory leaks
752 o New pipe-like BIO that allows using the SSL library when actual I/O
753 must be handled by the application (BIO pair)
755 Major changes between OpenSSL 0.9.2b and OpenSSL 0.9.3 [24 May 1999]:
756 o Lots of enhancements and cleanups to the Configuration mechanism
757 o RSA OEAP related fixes
758 o Added `openssl ca -revoke' option for revoking a certificate
759 o Source cleanups: const correctness, type-safe stacks and ASN.1 SETs
760 o Source tree cleanups: removed lots of obsolete files
761 o Thawte SXNet, certificate policies and CRL distribution points
763 o Preliminary (experimental) S/MIME support
764 o Support for ASN.1 UTF8String and VisibleString
765 o Full integration of PKCS#12 code
766 o Sparc assembler bignum implementation, optimized hash functions
767 o Option to disable selected ciphers
769 Major changes between OpenSSL 0.9.1c and OpenSSL 0.9.2b [22 Mar 1999]:
770 o Fixed a security hole related to session resumption
771 o Fixed RSA encryption routines for the p < q case
772 o "ALL" in cipher lists now means "everything except NULL ciphers"
773 o Support for Triple-DES CBCM cipher
774 o Support of Optimal Asymmetric Encryption Padding (OAEP) for RSA
775 o First support for new TLSv1 ciphers
776 o Added a few new BIOs (syslog BIO, reliable BIO)
777 o Extended support for DSA certificate/keys.
778 o Extended support for Certificate Signing Requests (CSR)
779 o Initial support for X.509v3 extensions
780 o Extended support for compression inside the SSL record layer
781 o Overhauled Win32 builds
782 o Cleanups and fixes to the Big Number (BN) library
783 o Support for ASN.1 GeneralizedTime
784 o Splitted ASN.1 SETs from SEQUENCEs
785 o ASN1 and PEM support for Netscape Certificate Sequences
786 o Overhauled Perl interface
787 o Lots of source tree cleanups.
788 o Lots of memory leak fixes.
791 Major changes between SSLeay 0.9.0b and OpenSSL 0.9.1c [23 Dec 1998]:
792 o Integration of the popular NO_RSA/NO_DSA patches
793 o Initial support for compression inside the SSL record layer
794 o Added BIO proxy and filtering functionality
795 o Extended Big Number (BN) library
796 o Added RIPE MD160 message digest
797 o Addeed support for RC2/64bit cipher
798 o Extended ASN.1 parser routines
799 o Adjustations of the source tree for CVS
800 o Support for various new platforms