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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 1.0.2j and OpenSSL 1.0.2k [26 Jan 2017]
10 o Truncated packet could crash via OOB read (CVE-2017-3731)
11 o BN_mod_exp may produce incorrect results on x86_64 (CVE-2017-3732)
12 o Montgomery multiplication may produce incorrect results (CVE-2016-7055)
14 Major changes between OpenSSL 1.0.2i and OpenSSL 1.0.2j [26 Sep 2016]
16 o Missing CRL sanity check (CVE-2016-7052)
18 Major changes between OpenSSL 1.0.2h and OpenSSL 1.0.2i [22 Sep 2016]
20 o OCSP Status Request extension unbounded memory growth (CVE-2016-6304)
21 o SWEET32 Mitigation (CVE-2016-2183)
22 o OOB write in MDC2_Update() (CVE-2016-6303)
23 o Malformed SHA512 ticket DoS (CVE-2016-6302)
24 o OOB write in BN_bn2dec() (CVE-2016-2182)
25 o OOB read in TS_OBJ_print_bio() (CVE-2016-2180)
26 o Pointer arithmetic undefined behaviour (CVE-2016-2177)
27 o Constant time flag not preserved in DSA signing (CVE-2016-2178)
28 o DTLS buffered message DoS (CVE-2016-2179)
29 o DTLS replay protection DoS (CVE-2016-2181)
30 o Certificate message OOB reads (CVE-2016-6306)
32 Major changes between OpenSSL 1.0.2g and OpenSSL 1.0.2h [3 May 2016]
34 o Prevent padding oracle in AES-NI CBC MAC check (CVE-2016-2107)
35 o Fix EVP_EncodeUpdate overflow (CVE-2016-2105)
36 o Fix EVP_EncryptUpdate overflow (CVE-2016-2106)
37 o Prevent ASN.1 BIO excessive memory allocation (CVE-2016-2109)
38 o EBCDIC overread (CVE-2016-2176)
39 o Modify behavior of ALPN to invoke callback after SNI/servername
40 callback, such that updates to the SSL_CTX affect ALPN.
41 o Remove LOW from the DEFAULT cipher list. This removes singles DES from
42 the default.
43 o Only remove the SSLv2 methods with the no-ssl2-method option.
45 Major changes between OpenSSL 1.0.2f and OpenSSL 1.0.2g [1 Mar 2016]
47 o Disable weak ciphers in SSLv3 and up in default builds of OpenSSL.
48 o Disable SSLv2 default build, default negotiation and weak ciphers
50 o Fix a double-free in DSA code (CVE-2016-0705)
51 o Disable SRP fake user seed to address a server memory leak
53 o Fix BN_hex2bn/BN_dec2bn NULL pointer deref/heap corruption
55 o Fix memory issues in BIO_*printf functions (CVE-2016-0799)
56 o Fix side channel attack on modular exponentiation (CVE-2016-0702)
58 Major changes between OpenSSL 1.0.2e and OpenSSL 1.0.2f [28 Jan 2016]
60 o DH small subgroups (CVE-2016-0701)
61 o SSLv2 doesn't block disabled ciphers (CVE-2015-3197)
63 Major changes between OpenSSL 1.0.2d and OpenSSL 1.0.2e [3 Dec 2015]
65 o BN_mod_exp may produce incorrect results on x86_64 (CVE-2015-3193)
66 o Certificate verify crash with missing PSS parameter (CVE-2015-3194)
67 o X509_ATTRIBUTE memory leak (CVE-2015-3195)
68 o Rewrite EVP_DecodeUpdate (base64 decoding) to fix several bugs
69 o In DSA_generate_parameters_ex, if the provided seed is too short,
70 return an error
72 Major changes between OpenSSL 1.0.2c and OpenSSL 1.0.2d [9 Jul 2015]
74 o Alternate chains certificate forgery (CVE-2015-1793)
75 o Race condition handling PSK identify hint (CVE-2015-3196)
77 Major changes between OpenSSL 1.0.2b and OpenSSL 1.0.2c [12 Jun 2015]
79 o Fix HMAC ABI incompatibility
81 Major changes between OpenSSL 1.0.2a and OpenSSL 1.0.2b [11 Jun 2015]
83 o Malformed ECParameters causes infinite loop (CVE-2015-1788)
84 o Exploitable out-of-bounds read in X509_cmp_time (CVE-2015-1789)
85 o PKCS7 crash with missing EnvelopedContent (CVE-2015-1790)
86 o CMS verify infinite loop with unknown hash function (CVE-2015-1792)
87 o Race condition handling NewSessionTicket (CVE-2015-1791)
89 Major changes between OpenSSL 1.0.2 and OpenSSL 1.0.2a [19 Mar 2015]
91 o OpenSSL 1.0.2 ClientHello sigalgs DoS fix (CVE-2015-0291)
92 o Multiblock corrupted pointer fix (CVE-2015-0290)
93 o Segmentation fault in DTLSv1_listen fix (CVE-2015-0207)
94 o Segmentation fault in ASN1_TYPE_cmp fix (CVE-2015-0286)
95 o Segmentation fault for invalid PSS parameters fix (CVE-2015-0208)
96 o ASN.1 structure reuse memory corruption fix (CVE-2015-0287)
97 o PKCS7 NULL pointer dereferences fix (CVE-2015-0289)
98 o DoS via reachable assert in SSLv2 servers fix (CVE-2015-0293)
99 o Empty CKE with client auth and DHE fix (CVE-2015-1787)
100 o Handshake with unseeded PRNG fix (CVE-2015-0285)
101 o Use After Free following d2i_ECPrivatekey error fix (CVE-2015-0209)
102 o X509_to_X509_REQ NULL pointer deref fix (CVE-2015-0288)
103 o Removed the export ciphers from the DEFAULT ciphers
105 Major changes between OpenSSL 1.0.1l and OpenSSL 1.0.2 [22 Jan 2015]:
107 o Suite B support for TLS 1.2 and DTLS 1.2
108 o Support for DTLS 1.2
109 o TLS automatic EC curve selection.
110 o API to set TLS supported signature algorithms and curves
111 o SSL_CONF configuration API.
112 o TLS Brainpool support.
113 o ALPN support.
114 o CMS support for RSA-PSS, RSA-OAEP, ECDH and X9.42 DH.
116 Major changes between OpenSSL 1.0.1k and OpenSSL 1.0.1l [15 Jan 2015]
118 o Build fixes for the Windows and OpenVMS platforms
120 Major changes between OpenSSL 1.0.1j and OpenSSL 1.0.1k [8 Jan 2015]
122 o Fix for CVE-2014-3571
123 o Fix for CVE-2015-0206
124 o Fix for CVE-2014-3569
125 o Fix for CVE-2014-3572
126 o Fix for CVE-2015-0204
127 o Fix for CVE-2015-0205
128 o Fix for CVE-2014-8275
129 o Fix for CVE-2014-3570
131 Major changes between OpenSSL 1.0.1i and OpenSSL 1.0.1j [15 Oct 2014]
133 o Fix for CVE-2014-3513
134 o Fix for CVE-2014-3567
135 o Mitigation for CVE-2014-3566 (SSL protocol vulnerability)
136 o Fix for CVE-2014-3568
138 Major changes between OpenSSL 1.0.1h and OpenSSL 1.0.1i [6 Aug 2014]
140 o Fix for CVE-2014-3512
141 o Fix for CVE-2014-3511
142 o Fix for CVE-2014-3510
143 o Fix for CVE-2014-3507
144 o Fix for CVE-2014-3506
145 o Fix for CVE-2014-3505
146 o Fix for CVE-2014-3509
147 o Fix for CVE-2014-5139
148 o Fix for CVE-2014-3508
150 Major changes between OpenSSL 1.0.1g and OpenSSL 1.0.1h [5 Jun 2014]
152 o Fix for CVE-2014-0224
153 o Fix for CVE-2014-0221
154 o Fix for CVE-2014-0198
155 o Fix for CVE-2014-0195
156 o Fix for CVE-2014-3470
157 o Fix for CVE-2010-5298
159 Major changes between OpenSSL 1.0.1f and OpenSSL 1.0.1g [7 Apr 2014]
161 o Fix for CVE-2014-0160
162 o Add TLS padding extension workaround for broken servers.
163 o Fix for CVE-2014-0076
165 Major changes between OpenSSL 1.0.1e and OpenSSL 1.0.1f [6 Jan 2014]
167 o Don't include gmt_unix_time in TLS server and client random values
168 o Fix for TLS record tampering bug CVE-2013-4353
169 o Fix for TLS version checking bug CVE-2013-6449
170 o Fix for DTLS retransmission bug CVE-2013-6450
172 Major changes between OpenSSL 1.0.1d and OpenSSL 1.0.1e [11 Feb 2013]:
174 o Corrected fix for CVE-2013-0169
176 Major changes between OpenSSL 1.0.1c and OpenSSL 1.0.1d [4 Feb 2013]:
178 o Fix renegotiation in TLS 1.1, 1.2 by using the correct TLS version.
179 o Include the fips configuration module.
180 o Fix OCSP bad key DoS attack CVE-2013-0166
181 o Fix for SSL/TLS/DTLS CBC plaintext recovery attack CVE-2013-0169
182 o Fix for TLS AESNI record handling flaw CVE-2012-2686
184 Major changes between OpenSSL 1.0.1b and OpenSSL 1.0.1c [10 May 2012]:
186 o Fix TLS/DTLS record length checking bug CVE-2012-2333
187 o Don't attempt to use non-FIPS composite ciphers in FIPS mode.
189 Major changes between OpenSSL 1.0.1a and OpenSSL 1.0.1b [26 Apr 2012]:
191 o Fix compilation error on non-x86 platforms.
192 o Make FIPS capable OpenSSL ciphers work in non-FIPS mode.
193 o Fix SSL_OP_NO_TLSv1_1 clash with SSL_OP_ALL in OpenSSL 1.0.0
195 Major changes between OpenSSL 1.0.1 and OpenSSL 1.0.1a [19 Apr 2012]:
197 o Fix for ASN1 overflow bug CVE-2012-2110
198 o Workarounds for some servers that hang on long client hellos.
199 o Fix SEGV in AES code.
201 Major changes between OpenSSL 1.0.0h and OpenSSL 1.0.1 [14 Mar 2012]:
203 o TLS/DTLS heartbeat support.
204 o SCTP support.
205 o RFC 5705 TLS key material exporter.
206 o RFC 5764 DTLS-SRTP negotiation.
207 o Next Protocol Negotiation.
208 o PSS signatures in certificates, requests and CRLs.
209 o Support for password based recipient info for CMS.
210 o Support TLS v1.2 and TLS v1.1.
211 o Preliminary FIPS capability for unvalidated 2.0 FIPS module.
212 o SRP support.
214 Major changes between OpenSSL 1.0.0g and OpenSSL 1.0.0h [12 Mar 2012]:
216 o Fix for CMS/PKCS#7 MMA CVE-2012-0884
217 o Corrected fix for CVE-2011-4619
218 o Various DTLS fixes.
220 Major changes between OpenSSL 1.0.0f and OpenSSL 1.0.0g [18 Jan 2012]:
222 o Fix for DTLS DoS issue CVE-2012-0050
224 Major changes between OpenSSL 1.0.0e and OpenSSL 1.0.0f [4 Jan 2012]:
226 o Fix for DTLS plaintext recovery attack CVE-2011-4108
227 o Clear block padding bytes of SSL 3.0 records CVE-2011-4576
228 o Only allow one SGC handshake restart for SSL/TLS CVE-2011-4619
229 o Check parameters are not NULL in GOST ENGINE CVE-2012-0027
230 o Check for malformed RFC3779 data CVE-2011-4577
232 Major changes between OpenSSL 1.0.0d and OpenSSL 1.0.0e [6 Sep 2011]:
234 o Fix for CRL vulnerability issue CVE-2011-3207
235 o Fix for ECDH crashes CVE-2011-3210
236 o Protection against EC timing attacks.
237 o Support ECDH ciphersuites for certificates using SHA2 algorithms.
238 o Various DTLS fixes.
240 Major changes between OpenSSL 1.0.0c and OpenSSL 1.0.0d [8 Feb 2011]:
242 o Fix for security issue CVE-2011-0014
244 Major changes between OpenSSL 1.0.0b and OpenSSL 1.0.0c [2 Dec 2010]:
246 o Fix for security issue CVE-2010-4180
247 o Fix for CVE-2010-4252
248 o Fix mishandling of absent EC point format extension.
249 o Fix various platform compilation issues.
250 o Corrected fix for security issue CVE-2010-3864.
252 Major changes between OpenSSL 1.0.0a and OpenSSL 1.0.0b [16 Nov 2010]:
254 o Fix for security issue CVE-2010-3864.
255 o Fix for CVE-2010-2939
256 o Fix WIN32 build system for GOST ENGINE.
258 Major changes between OpenSSL 1.0.0 and OpenSSL 1.0.0a [1 Jun 2010]:
260 o Fix for security issue CVE-2010-1633.
261 o GOST MAC and CFB fixes.
263 Major changes between OpenSSL 0.9.8n and OpenSSL 1.0.0 [29 Mar 2010]:
265 o RFC3280 path validation: sufficient to process PKITS tests.
266 o Integrated support for PVK files and keyblobs.
267 o Change default private key format to PKCS#8.
268 o CMS support: able to process all examples in RFC4134
269 o Streaming ASN1 encode support for PKCS#7 and CMS.
270 o Multiple signer and signer add support for PKCS#7 and CMS.
271 o ASN1 printing support.
272 o Whirlpool hash algorithm added.
273 o RFC3161 time stamp support.
274 o New generalised public key API supporting ENGINE based algorithms.
275 o New generalised public key API utilities.
276 o New ENGINE supporting GOST algorithms.
277 o SSL/TLS GOST ciphersuite support.
278 o PKCS#7 and CMS GOST support.
279 o RFC4279 PSK ciphersuite support.
280 o Supported points format extension for ECC ciphersuites.
281 o ecdsa-with-SHA224/256/384/512 signature types.
282 o dsa-with-SHA224 and dsa-with-SHA256 signature types.
283 o Opaque PRF Input TLS extension support.
284 o Updated time routines to avoid OS limitations.
286 Major changes between OpenSSL 0.9.8m and OpenSSL 0.9.8n [24 Mar 2010]:
288 o CFB cipher definition fixes.
289 o Fix security issues CVE-2010-0740 and CVE-2010-0433.
291 Major changes between OpenSSL 0.9.8l and OpenSSL 0.9.8m [25 Feb 2010]:
293 o Cipher definition fixes.
294 o Workaround for slow RAND_poll() on some WIN32 versions.
295 o Remove MD2 from algorithm tables.
296 o SPKAC handling fixes.
297 o Support for RFC5746 TLS renegotiation extension.
298 o Compression memory leak fixed.
299 o Compression session resumption fixed.
300 o Ticket and SNI coexistence fixes.
301 o Many fixes to DTLS handling.
303 Major changes between OpenSSL 0.9.8k and OpenSSL 0.9.8l [5 Nov 2009]:
305 o Temporary work around for CVE-2009-3555: disable renegotiation.
307 Major changes between OpenSSL 0.9.8j and OpenSSL 0.9.8k [25 Mar 2009]:
309 o Fix various build issues.
310 o Fix security issues (CVE-2009-0590, CVE-2009-0591, CVE-2009-0789)
312 Major changes between OpenSSL 0.9.8i and OpenSSL 0.9.8j [7 Jan 2009]:
314 o Fix security issue (CVE-2008-5077)
315 o Merge FIPS 140-2 branch code.
317 Major changes between OpenSSL 0.9.8g and OpenSSL 0.9.8h [28 May 2008]:
319 o CryptoAPI ENGINE support.
320 o Various precautionary measures.
321 o Fix for bugs affecting certificate request creation.
322 o Support for local machine keyset attribute in PKCS#12 files.
324 Major changes between OpenSSL 0.9.8f and OpenSSL 0.9.8g [19 Oct 2007]:
326 o Backport of CMS functionality to 0.9.8.
327 o Fixes for bugs introduced with 0.9.8f.
329 Major changes between OpenSSL 0.9.8e and OpenSSL 0.9.8f [11 Oct 2007]:
331 o Add gcc 4.2 support.
332 o Add support for AES and SSE2 assembly lanugauge optimization
333 for VC++ build.
334 o Support for RFC4507bis and server name extensions if explicitly
335 selected at compile time.
336 o DTLS improvements.
337 o RFC4507bis support.
338 o TLS Extensions support.
340 Major changes between OpenSSL 0.9.8d and OpenSSL 0.9.8e [23 Feb 2007]:
342 o Various ciphersuite selection fixes.
343 o RFC3779 support.
345 Major changes between OpenSSL 0.9.8c and OpenSSL 0.9.8d [28 Sep 2006]:
347 o Introduce limits to prevent malicious key DoS (CVE-2006-2940)
348 o Fix security issues (CVE-2006-2937, CVE-2006-3737, CVE-2006-4343)
349 o Changes to ciphersuite selection algorithm
351 Major changes between OpenSSL 0.9.8b and OpenSSL 0.9.8c [5 Sep 2006]:
353 o Fix Daniel Bleichenbacher forged signature attack, CVE-2006-4339
354 o New cipher Camellia
356 Major changes between OpenSSL 0.9.8a and OpenSSL 0.9.8b [4 May 2006]:
358 o Cipher string fixes.
359 o Fixes for VC++ 2005.
360 o Updated ECC cipher suite support.
361 o New functions EVP_CIPHER_CTX_new() and EVP_CIPHER_CTX_free().
362 o Zlib compression usage fixes.
363 o Built in dynamic engine compilation support on Win32.
364 o Fixes auto dynamic engine loading in Win32.
366 Major changes between OpenSSL 0.9.8 and OpenSSL 0.9.8a [11 Oct 2005]:
368 o Fix potential SSL 2.0 rollback, CVE-2005-2969
369 o Extended Windows CE support
371 Major changes between OpenSSL 0.9.7g and OpenSSL 0.9.8 [5 Jul 2005]:
373 o Major work on the BIGNUM library for higher efficiency and to
374 make operations more streamlined and less contradictory. This
375 is the result of a major audit of the BIGNUM library.
376 o Addition of BIGNUM functions for fields GF(2^m) and NIST
377 curves, to support the Elliptic Crypto functions.
378 o Major work on Elliptic Crypto; ECDH and ECDSA added, including
379 the use through EVP, X509 and ENGINE.
380 o New ASN.1 mini-compiler that's usable through the OpenSSL
381 configuration file.
382 o Added support for ASN.1 indefinite length constructed encoding.
383 o New PKCS#12 'medium level' API to manipulate PKCS#12 files.
384 o Complete rework of shared library construction and linking
385 programs with shared or static libraries, through a separate
387 o Rework of the passing of parameters from one Makefile to another.
388 o Changed ENGINE framework to load dynamic engine modules
389 automatically from specifically given directories.
390 o New structure and ASN.1 functions for CertificatePair.
391 o Changed the ZLIB compression method to be stateful.
392 o Changed the key-generation and primality testing "progress"
393 mechanism to take a structure that contains the ticker
394 function and an argument.
395 o New engine module: GMP (performs private key exponentiation).
396 o New engine module: VIA PadLOck ACE extension in VIA C3
397 Nehemiah processors.
398 o Added support for IPv6 addresses in certificate extensions.
399 See RFC 1884, section 2.2.
400 o Added support for certificate policy mappings, policy
401 constraints and name constraints.
402 o Added support for multi-valued AVAs in the OpenSSL
403 configuration file.
404 o Added support for multiple certificates with the same subject
405 in the 'openssl ca' index file.
406 o Make it possible to create self-signed certificates using
407 'openssl ca -selfsign'.
408 o Make it possible to generate a serial number file with
409 'openssl ca -create_serial'.
410 o New binary search functions with extended functionality.
411 o New BUF functions.
412 o New STORE structure and library to provide an interface to all
413 sorts of data repositories. Supports storage of public and
414 private keys, certificates, CRLs, numbers and arbitrary blobs.
415 This library is unfortunately unfinished and unused withing
417 o New control functions for the error stack.
418 o Changed the PKCS#7 library to support one-pass S/MIME
420 o Added the possibility to compile without old deprecated
421 functionality with the OPENSSL_NO_DEPRECATED macro or the
422 'no-deprecated' argument to the config and Configure scripts.
423 o Constification of all ASN.1 conversion functions, and other
424 affected functions.
425 o Improved platform support for PowerPC.
426 o New FIPS 180-2 algorithms (SHA-224, -256, -384 and -512).
427 o New X509_VERIFY_PARAM structure to support parametrisation
428 of X.509 path validation.
429 o Major overhaul of RC4 performance on Intel P4, IA-64 and
431 o Changed the Configure script to have some algorithms disabled
432 by default. Those can be explicitely enabled with the new
433 argument form 'enable-xxx'.
434 o Change the default digest in 'openssl' commands from MD5 to
436 o Added support for DTLS.
437 o New BIGNUM blinding.
438 o Added support for the RSA-PSS encryption scheme
439 o Added support for the RSA X.931 padding.
440 o Added support for BSD sockets on NetWare.
441 o Added support for files larger than 2GB.
442 o Added initial support for Win64.
443 o Added alternate pkg-config files.
445 Major changes between OpenSSL 0.9.7l and OpenSSL 0.9.7m [23 Feb 2007]:
447 o FIPS 1.1.1 module linking.
448 o Various ciphersuite selection fixes.
450 Major changes between OpenSSL 0.9.7k and OpenSSL 0.9.7l [28 Sep 2006]:
452 o Introduce limits to prevent malicious key DoS (CVE-2006-2940)
453 o Fix security issues (CVE-2006-2937, CVE-2006-3737, CVE-2006-4343)
455 Major changes between OpenSSL 0.9.7j and OpenSSL 0.9.7k [5 Sep 2006]:
457 o Fix Daniel Bleichenbacher forged signature attack, CVE-2006-4339
459 Major changes between OpenSSL 0.9.7i and OpenSSL 0.9.7j [4 May 2006]:
461 o Visual C++ 2005 fixes.
462 o Update Windows build system for FIPS.
464 Major changes between OpenSSL 0.9.7h and OpenSSL 0.9.7i [14 Oct 2005]:
466 o Give EVP_MAX_MD_SIZE it's old value, except for a FIPS build.
468 Major changes between OpenSSL 0.9.7g and OpenSSL 0.9.7h [11 Oct 2005]:
470 o Fix SSL 2.0 Rollback, CVE-2005-2969
471 o Allow use of fixed-length exponent on DSA signing
472 o Default fixed-window RSA, DSA, DH private-key operations
474 Major changes between OpenSSL 0.9.7f and OpenSSL 0.9.7g [11 Apr 2005]:
476 o More compilation issues fixed.
477 o Adaptation to more modern Kerberos API.
478 o Enhanced or corrected configuration for Solaris64, Mingw and Cygwin.
479 o Enhanced x86_64 assembler BIGNUM module.
480 o More constification.
481 o Added processing of proxy certificates (RFC 3820).
483 Major changes between OpenSSL 0.9.7e and OpenSSL 0.9.7f [22 Mar 2005]:
485 o Several compilation issues fixed.
486 o Many memory allocation failure checks added.
487 o Improved comparison of X509 Name type.
488 o Mandatory basic checks on certificates.
489 o Performance improvements.
491 Major changes between OpenSSL 0.9.7d and OpenSSL 0.9.7e [25 Oct 2004]:
493 o Fix race condition in CRL checking code.
494 o Fixes to PKCS#7 (S/MIME) code.
496 Major changes between OpenSSL 0.9.7c and OpenSSL 0.9.7d [17 Mar 2004]:
498 o Security: Fix Kerberos ciphersuite SSL/TLS handshaking bug
499 o Security: Fix null-pointer assignment in do_change_cipher_spec()
500 o Allow multiple active certificates with same subject in CA index
501 o Multiple X509 verification fixes
502 o Speed up HMAC and other operations
504 Major changes between OpenSSL 0.9.7b and OpenSSL 0.9.7c [30 Sep 2003]:
506 o Security: fix various ASN1 parsing bugs.
507 o New -ignore_err option to OCSP utility.
508 o Various interop and bug fixes in S/MIME code.
509 o SSL/TLS protocol fix for unrequested client certificates.
511 Major changes between OpenSSL 0.9.7a and OpenSSL 0.9.7b [10 Apr 2003]:
513 o Security: counter the Klima-Pokorny-Rosa extension of
514 Bleichbacher's attack
515 o Security: make RSA blinding default.
516 o Configuration: Irix fixes, AIX fixes, better mingw support.
517 o Support for new platforms: linux-ia64-ecc.
518 o Build: shared library support fixes.
519 o ASN.1: treat domainComponent correctly.
520 o Documentation: fixes and additions.
522 Major changes between OpenSSL 0.9.7 and OpenSSL 0.9.7a [19 Feb 2003]:
524 o Security: Important security related bugfixes.
525 o Enhanced compatibility with MIT Kerberos.
526 o Can be built without the ENGINE framework.
527 o IA32 assembler enhancements.
528 o Support for new platforms: FreeBSD/IA64 and FreeBSD/Sparc64.
529 o Configuration: the no-err option now works properly.
530 o SSL/TLS: now handles manual certificate chain building.
531 o SSL/TLS: certain session ID malfunctions corrected.
533 Major changes between OpenSSL 0.9.6 and OpenSSL 0.9.7 [30 Dec 2002]:
535 o New library section OCSP.
536 o Complete rewrite of ASN1 code.
537 o CRL checking in verify code and openssl utility.
538 o Extension copying in 'ca' utility.
539 o Flexible display options in 'ca' utility.
540 o Provisional support for international characters with UTF8.
541 o Support for external crypto devices ('engine') is no longer
542 a separate distribution.
543 o New elliptic curve library section.
544 o New AES (Rijndael) library section.
545 o Support for new platforms: Windows CE, Tandem OSS, A/UX, AIX 64-bit,
546 Linux x86_64, Linux 64-bit on Sparc v9
547 o Extended support for some platforms: VxWorks
548 o Enhanced support for shared libraries.
549 o Now only builds PIC code when shared library support is requested.
550 o Support for pkg-config.
551 o Lots of new manuals.
552 o Makes symbolic links to or copies of manuals to cover all described
554 o Change DES API to clean up the namespace (some applications link also
555 against libdes providing similar functions having the same name).
556 Provide macros for backward compatibility (will be removed in the
558 o Unify handling of cryptographic algorithms (software and engine)
559 to be available via EVP routines for asymmetric and symmetric ciphers.
560 o NCONF: new configuration handling routines.
561 o Change API to use more 'const' modifiers to improve error checking
562 and help optimizers.
563 o Finally remove references to RSAref.
564 o Reworked parts of the BIGNUM code.
565 o Support for new engines: Broadcom ubsec, Accelerated Encryption
566 Processing, IBM 4758.
567 o A few new engines added in the demos area.
568 o Extended and corrected OID (object identifier) table.
569 o PRNG: query at more locations for a random device, automatic query for
570 EGD style random sources at several locations.
571 o SSL/TLS: allow optional cipher choice according to server's preference.
572 o SSL/TLS: allow server to explicitly set new session ids.
573 o SSL/TLS: support Kerberos cipher suites (RFC2712).
574 Only supports MIT Kerberos for now.
575 o SSL/TLS: allow more precise control of renegotiations and sessions.
576 o SSL/TLS: add callback to retrieve SSL/TLS messages.
577 o SSL/TLS: support AES cipher suites (RFC3268).
579 Major changes between OpenSSL 0.9.6j and OpenSSL 0.9.6k [30 Sep 2003]:
581 o Security: fix various ASN1 parsing bugs.
582 o SSL/TLS protocol fix for unrequested client certificates.
584 Major changes between OpenSSL 0.9.6i and OpenSSL 0.9.6j [10 Apr 2003]:
586 o Security: counter the Klima-Pokorny-Rosa extension of
587 Bleichbacher's attack
588 o Security: make RSA blinding default.
589 o Build: shared library support fixes.
591 Major changes between OpenSSL 0.9.6h and OpenSSL 0.9.6i [19 Feb 2003]:
593 o Important security related bugfixes.
595 Major changes between OpenSSL 0.9.6g and OpenSSL 0.9.6h [5 Dec 2002]:
597 o New configuration targets for Tandem OSS and A/UX.
598 o New OIDs for Microsoft attributes.
599 o Better handling of SSL session caching.
600 o Better comparison of distinguished names.
601 o Better handling of shared libraries in a mixed GNU/non-GNU environment.
602 o Support assembler code with Borland C.
603 o Fixes for length problems.
604 o Fixes for uninitialised variables.
605 o Fixes for memory leaks, some unusual crashes and some race conditions.
606 o Fixes for smaller building problems.
607 o Updates of manuals, FAQ and other instructive documents.
609 Major changes between OpenSSL 0.9.6f and OpenSSL 0.9.6g [9 Aug 2002]:
611 o Important building fixes on Unix.
613 Major changes between OpenSSL 0.9.6e and OpenSSL 0.9.6f [8 Aug 2002]:
615 o Various important bugfixes.
617 Major changes between OpenSSL 0.9.6d and OpenSSL 0.9.6e [30 Jul 2002]:
619 o Important security related bugfixes.
620 o Various SSL/TLS library bugfixes.
622 Major changes between OpenSSL 0.9.6c and OpenSSL 0.9.6d [9 May 2002]:
624 o Various SSL/TLS library bugfixes.
625 o Fix DH parameter generation for 'non-standard' generators.
627 Major changes between OpenSSL 0.9.6b and OpenSSL 0.9.6c [21 Dec 2001]:
629 o Various SSL/TLS library bugfixes.
630 o BIGNUM library fixes.
631 o RSA OAEP and random number generation fixes.
632 o Object identifiers corrected and added.
633 o Add assembler BN routines for IA64.
634 o Add support for OS/390 Unix, UnixWare with gcc, OpenUNIX 8,
635 MIPS Linux; shared library support for Irix, HP-UX.
636 o Add crypto accelerator support for AEP, Baltimore SureWare,
637 Broadcom and Cryptographic Appliance's keyserver
638 [in 0.9.6c-engine release].
640 Major changes between OpenSSL 0.9.6a and OpenSSL 0.9.6b [9 Jul 2001]:
642 o Security fix: PRNG improvements.
643 o Security fix: RSA OAEP check.
644 o Security fix: Reinsert and fix countermeasure to Bleichbacher's
646 o MIPS bug fix in BIGNUM.
647 o Bug fix in "openssl enc".
648 o Bug fix in X.509 printing routine.
649 o Bug fix in DSA verification routine and DSA S/MIME verification.
650 o Bug fix to make PRNG thread-safe.
651 o Bug fix in RAND_file_name().
652 o Bug fix in compatibility mode trust settings.
653 o Bug fix in blowfish EVP.
654 o Increase default size for BIO buffering filter.
655 o Compatibility fixes in some scripts.
657 Major changes between OpenSSL 0.9.6 and OpenSSL 0.9.6a [5 Apr 2001]:
659 o Security fix: change behavior of OpenSSL to avoid using
660 environment variables when running as root.
661 o Security fix: check the result of RSA-CRT to reduce the
662 possibility of deducing the private key from an incorrectly
663 calculated signature.
664 o Security fix: prevent Bleichenbacher's DSA attack.
665 o Security fix: Zero the premaster secret after deriving the
666 master secret in DH ciphersuites.
667 o Reimplement SSL_peek(), which had various problems.
668 o Compatibility fix: the function des_encrypt() renamed to
669 des_encrypt1() to avoid clashes with some Unixen libc.
670 o Bug fixes for Win32, HP/UX and Irix.
671 o Bug fixes in BIGNUM, SSL, PKCS#7, PKCS#12, X.509, CONF and
672 memory checking routines.
673 o Bug fixes for RSA operations in threaded environments.
674 o Bug fixes in misc. openssl applications.
675 o Remove a few potential memory leaks.
676 o Add tighter checks of BIGNUM routines.
677 o Shared library support has been reworked for generality.
678 o More documentation.
679 o New function BN_rand_range().
680 o Add "-rand" option to openssl s_client and s_server.
682 Major changes between OpenSSL 0.9.5a and OpenSSL 0.9.6 [10 Oct 2000]:
684 o Some documentation for BIO and SSL libraries.
685 o Enhanced chain verification using key identifiers.
686 o New sign and verify options to 'dgst' application.
687 o Support for DER and PEM encoded messages in 'smime' application.
688 o New 'rsautl' application, low level RSA utility.
689 o MD4 now included.
690 o Bugfix for SSL rollback padding check.
691 o Support for external crypto devices .
692 o Enhanced EVP interface.
694  The support for external crypto devices is currently a separate
695 distribution. See the file README.ENGINE.
697 Major changes between OpenSSL 0.9.5 and OpenSSL 0.9.5a [1 Apr 2000]:
699 o Bug fixes for Win32, SuSE Linux, NeXTSTEP and FreeBSD 2.2.8
700 o Shared library support for HPUX and Solaris-gcc
701 o Support of Linux/IA64
702 o Assembler support for Mingw32
703 o New 'rand' application
704 o New way to check for existence of algorithms from scripts
706 Major changes between OpenSSL 0.9.4 and OpenSSL 0.9.5 [25 May 2000]:
708 o S/MIME support in new 'smime' command
709 o Documentation for the OpenSSL command line application
710 o Automation of 'req' application
711 o Fixes to make s_client, s_server work under Windows
712 o Support for multiple fieldnames in SPKACs
713 o New SPKAC command line utilty and associated library functions
714 o Options to allow passwords to be obtained from various sources
715 o New public key PEM format and options to handle it
716 o Many other fixes and enhancements to command line utilities
717 o Usable certificate chain verification
718 o Certificate purpose checking
719 o Certificate trust settings
720 o Support of authority information access extension
721 o Extensions in certificate requests
722 o Simplified X509 name and attribute routines
723 o Initial (incomplete) support for international character sets
724 o New DH_METHOD, DSA_METHOD and enhanced RSA_METHOD
725 o Read only memory BIOs and simplified creation function
726 o TLS/SSL protocol bugfixes: Accept TLS 'client hello' in SSL 3.0
727 record; allow fragmentation and interleaving of handshake and other
729 o TLS/SSL code now "tolerates" MS SGC
730 o Work around for Netscape client certificate hang bug
731 o RSA_NULL option that removes RSA patent code but keeps other
732 RSA functionality
733 o Memory leak detection now allows applications to add extra information
734 via a per-thread stack
735 o PRNG robustness improved
736 o EGD support
737 o BIGNUM library bug fixes
738 o Faster DSA parameter generation
739 o Enhanced support for Alpha Linux
740 o Experimental MacOS support
742 Major changes between OpenSSL 0.9.3 and OpenSSL 0.9.4 [9 Aug 1999]:
744 o Transparent support for PKCS#8 format private keys: these are used
745 by several software packages and are more secure than the standard
747 o PKCS#5 v2.0 implementation
748 o Password callbacks have a new void * argument for application data
749 o Avoid various memory leaks
750 o New pipe-like BIO that allows using the SSL library when actual I/O
751 must be handled by the application (BIO pair)
753 Major changes between OpenSSL 0.9.2b and OpenSSL 0.9.3 [24 May 1999]:
754 o Lots of enhancements and cleanups to the Configuration mechanism
755 o RSA OEAP related fixes
756 o Added `openssl ca -revoke' option for revoking a certificate
757 o Source cleanups: const correctness, type-safe stacks and ASN.1 SETs
758 o Source tree cleanups: removed lots of obsolete files
759 o Thawte SXNet, certificate policies and CRL distribution points
760 extension support
761 o Preliminary (experimental) S/MIME support
762 o Support for ASN.1 UTF8String and VisibleString
763 o Full integration of PKCS#12 code
764 o Sparc assembler bignum implementation, optimized hash functions
765 o Option to disable selected ciphers
767 Major changes between OpenSSL 0.9.1c and OpenSSL 0.9.2b [22 Mar 1999]:
768 o Fixed a security hole related to session resumption
769 o Fixed RSA encryption routines for the p < q case
770 o "ALL" in cipher lists now means "everything except NULL ciphers"
771 o Support for Triple-DES CBCM cipher
772 o Support of Optimal Asymmetric Encryption Padding (OAEP) for RSA
773 o First support for new TLSv1 ciphers
774 o Added a few new BIOs (syslog BIO, reliable BIO)
775 o Extended support for DSA certificate/keys.
776 o Extended support for Certificate Signing Requests (CSR)
777 o Initial support for X.509v3 extensions
778 o Extended support for compression inside the SSL record layer
779 o Overhauled Win32 builds
780 o Cleanups and fixes to the Big Number (BN) library
781 o Support for ASN.1 GeneralizedTime
782 o Splitted ASN.1 SETs from SEQUENCEs
783 o ASN1 and PEM support for Netscape Certificate Sequences
784 o Overhauled Perl interface
785 o Lots of source tree cleanups.
786 o Lots of memory leak fixes.
787 o Lots of bug fixes.
789 Major changes between SSLeay 0.9.0b and OpenSSL 0.9.1c [23 Dec 1998]:
790 o Integration of the popular NO_RSA/NO_DSA patches
791 o Initial support for compression inside the SSL record layer
792 o Added BIO proxy and filtering functionality
793 o Extended Big Number (BN) library
794 o Added RIPE MD160 message digest
795 o Addeed support for RC2/64bit cipher
796 o Extended ASN.1 parser routines
797 o Adjustations of the source tree for CVS
798 o Support for various new platforms