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 1.1.0a and OpenSSL 1.1.1 [under development]
12 Major changes between OpenSSL 1.1.0c and OpenSSL 1.1.0d [26 Jan 2017]
14 o Truncated packet could crash via OOB read (CVE-2017-3731)
15 o Bad (EC)DHE parameters cause a client crash (CVE-2017-3730)
16 o BN_mod_exp may produce incorrect results on x86_64 (CVE-2017-3732)
18 Major changes between OpenSSL 1.1.0b and OpenSSL 1.1.0c [10 Nov 2016]
20 o ChaCha20/Poly1305 heap-buffer-overflow (CVE-2016-7054)
21 o CMS Null dereference (CVE-2016-7053)
22 o Montgomery multiplication may produce incorrect results (CVE-2016-7055)
24 Major changes between OpenSSL 1.1.0a and OpenSSL 1.1.0b [26 Sep 2016]
26 o Fix Use After Free for large message sizes (CVE-2016-6309)
28 Major changes between OpenSSL 1.1.0 and OpenSSL 1.1.0a [22 Sep 2016]
30 o OCSP Status Request extension unbounded memory growth (CVE-2016-6304)
31 o SSL_peek() hang on empty record (CVE-2016-6305)
32 o Excessive allocation of memory in tls_get_message_header()
34 o Excessive allocation of memory in dtls1_preprocess_fragment()
37 Major changes between OpenSSL 1.0.2h and OpenSSL 1.1.0 [25 Aug 2016]
39 o Copyright text was shrunk to a boilerplate that points to the license
40 o "shared" builds are now the default when possible
41 o Added support for "pipelining"
42 o Added the AFALG engine
43 o New threading API implemented
44 o Support for ChaCha20 and Poly1305 added to libcrypto and libssl
45 o Support for extended master secret
47 o Reworked test suite, now based on perl, Test::Harness and Test::More
48 o *Most* libcrypto and libssl public structures were made opaque,
50 BIGNUM and associated types, EC_KEY and EC_KEY_METHOD,
51 DH and DH_METHOD, DSA and DSA_METHOD, RSA and RSA_METHOD,
52 BIO and BIO_METHOD, EVP_MD_CTX, EVP_MD, EVP_CIPHER_CTX,
53 EVP_CIPHER, EVP_PKEY and associated types, HMAC_CTX,
54 X509, X509_CRL, X509_OBJECT, X509_STORE_CTX, X509_STORE,
55 X509_LOOKUP, X509_LOOKUP_METHOD
56 o libssl internal structures made opaque
57 o SSLv2 support removed
58 o Kerberos ciphersuite support removed
59 o RC4 removed from DEFAULT ciphersuites in libssl
60 o 40 and 56 bit cipher support removed from libssl
61 o All public header files moved to include/openssl, no more symlinking
62 o SSL/TLS state machine, version negotiation and record layer rewritten
63 o EC revision: now operations use new EC_KEY_METHOD.
64 o Support for OCB mode added to libcrypto
65 o Support for asynchronous crypto operations added to libcrypto and libssl
66 o Deprecated interfaces can now be disabled at build time either
67 relative to the latest release via the "no-deprecated" Configure
68 argument, or via the "--api=1.1.0|1.0.0|0.9.8" option.
69 o Application software can be compiled with -DOPENSSL_API_COMPAT=version
70 to ensure that features deprecated in that version are not exposed.
71 o Support for RFC6698/RFC7671 DANE TLSA peer authentication
72 o Change of Configure to use --prefix as the main installation
73 directory location rather than --openssldir. The latter becomes
74 the directory for certs, private key and openssl.cnf exclusively.
75 o Reworked BIO networking library, with full support for IPv6.
76 o New "unified" build system
78 o Support for scrypt algorithm
80 o Extended SSL_CONF support using configuration files
81 o KDF algorithm support. Implement TLS PRF as a KDF.
82 o Support for Certificate Transparency
85 Major changes between OpenSSL 1.0.2g and OpenSSL 1.0.2h [3 May 2016]
87 o Prevent padding oracle in AES-NI CBC MAC check (CVE-2016-2107)
88 o Fix EVP_EncodeUpdate overflow (CVE-2016-2105)
89 o Fix EVP_EncryptUpdate overflow (CVE-2016-2106)
90 o Prevent ASN.1 BIO excessive memory allocation (CVE-2016-2109)
91 o EBCDIC overread (CVE-2016-2176)
92 o Modify behavior of ALPN to invoke callback after SNI/servername
93 callback, such that updates to the SSL_CTX affect ALPN.
94 o Remove LOW from the DEFAULT cipher list. This removes singles DES from
96 o Only remove the SSLv2 methods with the no-ssl2-method option.
98 Major changes between OpenSSL 1.0.2f and OpenSSL 1.0.2g [1 Mar 2016]
100 o Disable weak ciphers in SSLv3 and up in default builds of OpenSSL.
101 o Disable SSLv2 default build, default negotiation and weak ciphers
103 o Fix a double-free in DSA code (CVE-2016-0705)
104 o Disable SRP fake user seed to address a server memory leak
106 o Fix BN_hex2bn/BN_dec2bn NULL pointer deref/heap corruption
108 o Fix memory issues in BIO_*printf functions (CVE-2016-0799)
109 o Fix side channel attack on modular exponentiation (CVE-2016-0702)
111 Major changes between OpenSSL 1.0.2e and OpenSSL 1.0.2f [28 Jan 2016]
113 o DH small subgroups (CVE-2016-0701)
114 o SSLv2 doesn't block disabled ciphers (CVE-2015-3197)
116 Major changes between OpenSSL 1.0.2d and OpenSSL 1.0.2e [3 Dec 2015]
118 o BN_mod_exp may produce incorrect results on x86_64 (CVE-2015-3193)
119 o Certificate verify crash with missing PSS parameter (CVE-2015-3194)
120 o X509_ATTRIBUTE memory leak (CVE-2015-3195)
121 o Rewrite EVP_DecodeUpdate (base64 decoding) to fix several bugs
122 o In DSA_generate_parameters_ex, if the provided seed is too short,
125 Major changes between OpenSSL 1.0.2c and OpenSSL 1.0.2d [9 Jul 2015]
127 o Alternate chains certificate forgery (CVE-2015-1793)
128 o Race condition handling PSK identify hint (CVE-2015-3196)
130 Major changes between OpenSSL 1.0.2b and OpenSSL 1.0.2c [12 Jun 2015]
132 o Fix HMAC ABI incompatibility
134 Major changes between OpenSSL 1.0.2a and OpenSSL 1.0.2b [11 Jun 2015]
136 o Malformed ECParameters causes infinite loop (CVE-2015-1788)
137 o Exploitable out-of-bounds read in X509_cmp_time (CVE-2015-1789)
138 o PKCS7 crash with missing EnvelopedContent (CVE-2015-1790)
139 o CMS verify infinite loop with unknown hash function (CVE-2015-1792)
140 o Race condition handling NewSessionTicket (CVE-2015-1791)
142 Major changes between OpenSSL 1.0.2 and OpenSSL 1.0.2a [19 Mar 2015]
144 o OpenSSL 1.0.2 ClientHello sigalgs DoS fix (CVE-2015-0291)
145 o Multiblock corrupted pointer fix (CVE-2015-0290)
146 o Segmentation fault in DTLSv1_listen fix (CVE-2015-0207)
147 o Segmentation fault in ASN1_TYPE_cmp fix (CVE-2015-0286)
148 o Segmentation fault for invalid PSS parameters fix (CVE-2015-0208)
149 o ASN.1 structure reuse memory corruption fix (CVE-2015-0287)
150 o PKCS7 NULL pointer dereferences fix (CVE-2015-0289)
151 o DoS via reachable assert in SSLv2 servers fix (CVE-2015-0293)
152 o Empty CKE with client auth and DHE fix (CVE-2015-1787)
153 o Handshake with unseeded PRNG fix (CVE-2015-0285)
154 o Use After Free following d2i_ECPrivatekey error fix (CVE-2015-0209)
155 o X509_to_X509_REQ NULL pointer deref fix (CVE-2015-0288)
156 o Removed the export ciphers from the DEFAULT ciphers
158 Major changes between OpenSSL 1.0.1l and OpenSSL 1.0.2 [22 Jan 2015]:
160 o Suite B support for TLS 1.2 and DTLS 1.2
161 o Support for DTLS 1.2
162 o TLS automatic EC curve selection.
163 o API to set TLS supported signature algorithms and curves
164 o SSL_CONF configuration API.
165 o TLS Brainpool support.
167 o CMS support for RSA-PSS, RSA-OAEP, ECDH and X9.42 DH.
169 Major changes between OpenSSL 1.0.1k and OpenSSL 1.0.1l [15 Jan 2015]
171 o Build fixes for the Windows and OpenVMS platforms
173 Major changes between OpenSSL 1.0.1j and OpenSSL 1.0.1k [8 Jan 2015]
175 o Fix for CVE-2014-3571
176 o Fix for CVE-2015-0206
177 o Fix for CVE-2014-3569
178 o Fix for CVE-2014-3572
179 o Fix for CVE-2015-0204
180 o Fix for CVE-2015-0205
181 o Fix for CVE-2014-8275
182 o Fix for CVE-2014-3570
184 Major changes between OpenSSL 1.0.1i and OpenSSL 1.0.1j [15 Oct 2014]
186 o Fix for CVE-2014-3513
187 o Fix for CVE-2014-3567
188 o Mitigation for CVE-2014-3566 (SSL protocol vulnerability)
189 o Fix for CVE-2014-3568
191 Major changes between OpenSSL 1.0.1h and OpenSSL 1.0.1i [6 Aug 2014]
193 o Fix for CVE-2014-3512
194 o Fix for CVE-2014-3511
195 o Fix for CVE-2014-3510
196 o Fix for CVE-2014-3507
197 o Fix for CVE-2014-3506
198 o Fix for CVE-2014-3505
199 o Fix for CVE-2014-3509
200 o Fix for CVE-2014-5139
201 o Fix for CVE-2014-3508
203 Major changes between OpenSSL 1.0.1g and OpenSSL 1.0.1h [5 Jun 2014]
205 o Fix for CVE-2014-0224
206 o Fix for CVE-2014-0221
207 o Fix for CVE-2014-0198
208 o Fix for CVE-2014-0195
209 o Fix for CVE-2014-3470
210 o Fix for CVE-2010-5298
212 Major changes between OpenSSL 1.0.1f and OpenSSL 1.0.1g [7 Apr 2014]
214 o Fix for CVE-2014-0160
215 o Add TLS padding extension workaround for broken servers.
216 o Fix for CVE-2014-0076
218 Major changes between OpenSSL 1.0.1e and OpenSSL 1.0.1f [6 Jan 2014]
220 o Don't include gmt_unix_time in TLS server and client random values
221 o Fix for TLS record tampering bug CVE-2013-4353
222 o Fix for TLS version checking bug CVE-2013-6449
223 o Fix for DTLS retransmission bug CVE-2013-6450
225 Major changes between OpenSSL 1.0.1d and OpenSSL 1.0.1e [11 Feb 2013]:
227 o Corrected fix for CVE-2013-0169
229 Major changes between OpenSSL 1.0.1c and OpenSSL 1.0.1d [4 Feb 2013]:
231 o Fix renegotiation in TLS 1.1, 1.2 by using the correct TLS version.
232 o Include the fips configuration module.
233 o Fix OCSP bad key DoS attack CVE-2013-0166
234 o Fix for SSL/TLS/DTLS CBC plaintext recovery attack CVE-2013-0169
235 o Fix for TLS AESNI record handling flaw CVE-2012-2686
237 Major changes between OpenSSL 1.0.1b and OpenSSL 1.0.1c [10 May 2012]:
239 o Fix TLS/DTLS record length checking bug CVE-2012-2333
240 o Don't attempt to use non-FIPS composite ciphers in FIPS mode.
242 Major changes between OpenSSL 1.0.1a and OpenSSL 1.0.1b [26 Apr 2012]:
244 o Fix compilation error on non-x86 platforms.
245 o Make FIPS capable OpenSSL ciphers work in non-FIPS mode.
246 o Fix SSL_OP_NO_TLSv1_1 clash with SSL_OP_ALL in OpenSSL 1.0.0
248 Major changes between OpenSSL 1.0.1 and OpenSSL 1.0.1a [19 Apr 2012]:
250 o Fix for ASN1 overflow bug CVE-2012-2110
251 o Workarounds for some servers that hang on long client hellos.
252 o Fix SEGV in AES code.
254 Major changes between OpenSSL 1.0.0h and OpenSSL 1.0.1 [14 Mar 2012]:
256 o TLS/DTLS heartbeat support.
258 o RFC 5705 TLS key material exporter.
259 o RFC 5764 DTLS-SRTP negotiation.
260 o Next Protocol Negotiation.
261 o PSS signatures in certificates, requests and CRLs.
262 o Support for password based recipient info for CMS.
263 o Support TLS v1.2 and TLS v1.1.
264 o Preliminary FIPS capability for unvalidated 2.0 FIPS module.
267 Major changes between OpenSSL 1.0.0g and OpenSSL 1.0.0h [12 Mar 2012]:
269 o Fix for CMS/PKCS#7 MMA CVE-2012-0884
270 o Corrected fix for CVE-2011-4619
271 o Various DTLS fixes.
273 Major changes between OpenSSL 1.0.0f and OpenSSL 1.0.0g [18 Jan 2012]:
275 o Fix for DTLS DoS issue CVE-2012-0050
277 Major changes between OpenSSL 1.0.0e and OpenSSL 1.0.0f [4 Jan 2012]:
279 o Fix for DTLS plaintext recovery attack CVE-2011-4108
280 o Clear block padding bytes of SSL 3.0 records CVE-2011-4576
281 o Only allow one SGC handshake restart for SSL/TLS CVE-2011-4619
282 o Check parameters are not NULL in GOST ENGINE CVE-2012-0027
283 o Check for malformed RFC3779 data CVE-2011-4577
285 Major changes between OpenSSL 1.0.0d and OpenSSL 1.0.0e [6 Sep 2011]:
287 o Fix for CRL vulnerability issue CVE-2011-3207
288 o Fix for ECDH crashes CVE-2011-3210
289 o Protection against EC timing attacks.
290 o Support ECDH ciphersuites for certificates using SHA2 algorithms.
291 o Various DTLS fixes.
293 Major changes between OpenSSL 1.0.0c and OpenSSL 1.0.0d [8 Feb 2011]:
295 o Fix for security issue CVE-2011-0014
297 Major changes between OpenSSL 1.0.0b and OpenSSL 1.0.0c [2 Dec 2010]:
299 o Fix for security issue CVE-2010-4180
300 o Fix for CVE-2010-4252
301 o Fix mishandling of absent EC point format extension.
302 o Fix various platform compilation issues.
303 o Corrected fix for security issue CVE-2010-3864.
305 Major changes between OpenSSL 1.0.0a and OpenSSL 1.0.0b [16 Nov 2010]:
307 o Fix for security issue CVE-2010-3864.
308 o Fix for CVE-2010-2939
309 o Fix WIN32 build system for GOST ENGINE.
311 Major changes between OpenSSL 1.0.0 and OpenSSL 1.0.0a [1 Jun 2010]:
313 o Fix for security issue CVE-2010-1633.
314 o GOST MAC and CFB fixes.
316 Major changes between OpenSSL 0.9.8n and OpenSSL 1.0.0 [29 Mar 2010]:
318 o RFC3280 path validation: sufficient to process PKITS tests.
319 o Integrated support for PVK files and keyblobs.
320 o Change default private key format to PKCS#8.
321 o CMS support: able to process all examples in RFC4134
322 o Streaming ASN1 encode support for PKCS#7 and CMS.
323 o Multiple signer and signer add support for PKCS#7 and CMS.
324 o ASN1 printing support.
325 o Whirlpool hash algorithm added.
326 o RFC3161 time stamp support.
327 o New generalised public key API supporting ENGINE based algorithms.
328 o New generalised public key API utilities.
329 o New ENGINE supporting GOST algorithms.
330 o SSL/TLS GOST ciphersuite support.
331 o PKCS#7 and CMS GOST support.
332 o RFC4279 PSK ciphersuite support.
333 o Supported points format extension for ECC ciphersuites.
334 o ecdsa-with-SHA224/256/384/512 signature types.
335 o dsa-with-SHA224 and dsa-with-SHA256 signature types.
336 o Opaque PRF Input TLS extension support.
337 o Updated time routines to avoid OS limitations.
339 Major changes between OpenSSL 0.9.8m and OpenSSL 0.9.8n [24 Mar 2010]:
341 o CFB cipher definition fixes.
342 o Fix security issues CVE-2010-0740 and CVE-2010-0433.
344 Major changes between OpenSSL 0.9.8l and OpenSSL 0.9.8m [25 Feb 2010]:
346 o Cipher definition fixes.
347 o Workaround for slow RAND_poll() on some WIN32 versions.
348 o Remove MD2 from algorithm tables.
349 o SPKAC handling fixes.
350 o Support for RFC5746 TLS renegotiation extension.
351 o Compression memory leak fixed.
352 o Compression session resumption fixed.
353 o Ticket and SNI coexistence fixes.
354 o Many fixes to DTLS handling.
356 Major changes between OpenSSL 0.9.8k and OpenSSL 0.9.8l [5 Nov 2009]:
358 o Temporary work around for CVE-2009-3555: disable renegotiation.
360 Major changes between OpenSSL 0.9.8j and OpenSSL 0.9.8k [25 Mar 2009]:
362 o Fix various build issues.
363 o Fix security issues (CVE-2009-0590, CVE-2009-0591, CVE-2009-0789)
365 Major changes between OpenSSL 0.9.8i and OpenSSL 0.9.8j [7 Jan 2009]:
367 o Fix security issue (CVE-2008-5077)
368 o Merge FIPS 140-2 branch code.
370 Major changes between OpenSSL 0.9.8g and OpenSSL 0.9.8h [28 May 2008]:
372 o CryptoAPI ENGINE support.
373 o Various precautionary measures.
374 o Fix for bugs affecting certificate request creation.
375 o Support for local machine keyset attribute in PKCS#12 files.
377 Major changes between OpenSSL 0.9.8f and OpenSSL 0.9.8g [19 Oct 2007]:
379 o Backport of CMS functionality to 0.9.8.
380 o Fixes for bugs introduced with 0.9.8f.
382 Major changes between OpenSSL 0.9.8e and OpenSSL 0.9.8f [11 Oct 2007]:
384 o Add gcc 4.2 support.
385 o Add support for AES and SSE2 assembly language optimization
387 o Support for RFC4507bis and server name extensions if explicitly
388 selected at compile time.
390 o RFC4507bis support.
391 o TLS Extensions support.
393 Major changes between OpenSSL 0.9.8d and OpenSSL 0.9.8e [23 Feb 2007]:
395 o Various ciphersuite selection fixes.
398 Major changes between OpenSSL 0.9.8c and OpenSSL 0.9.8d [28 Sep 2006]:
400 o Introduce limits to prevent malicious key DoS (CVE-2006-2940)
401 o Fix security issues (CVE-2006-2937, CVE-2006-3737, CVE-2006-4343)
402 o Changes to ciphersuite selection algorithm
404 Major changes between OpenSSL 0.9.8b and OpenSSL 0.9.8c [5 Sep 2006]:
406 o Fix Daniel Bleichenbacher forged signature attack, CVE-2006-4339
407 o New cipher Camellia
409 Major changes between OpenSSL 0.9.8a and OpenSSL 0.9.8b [4 May 2006]:
411 o Cipher string fixes.
412 o Fixes for VC++ 2005.
413 o Updated ECC cipher suite support.
414 o New functions EVP_CIPHER_CTX_new() and EVP_CIPHER_CTX_free().
415 o Zlib compression usage fixes.
416 o Built in dynamic engine compilation support on Win32.
417 o Fixes auto dynamic engine loading in Win32.
419 Major changes between OpenSSL 0.9.8 and OpenSSL 0.9.8a [11 Oct 2005]:
421 o Fix potential SSL 2.0 rollback, CVE-2005-2969
422 o Extended Windows CE support
424 Major changes between OpenSSL 0.9.7g and OpenSSL 0.9.8 [5 Jul 2005]:
426 o Major work on the BIGNUM library for higher efficiency and to
427 make operations more streamlined and less contradictory. This
428 is the result of a major audit of the BIGNUM library.
429 o Addition of BIGNUM functions for fields GF(2^m) and NIST
430 curves, to support the Elliptic Crypto functions.
431 o Major work on Elliptic Crypto; ECDH and ECDSA added, including
432 the use through EVP, X509 and ENGINE.
433 o New ASN.1 mini-compiler that's usable through the OpenSSL
435 o Added support for ASN.1 indefinite length constructed encoding.
436 o New PKCS#12 'medium level' API to manipulate PKCS#12 files.
437 o Complete rework of shared library construction and linking
438 programs with shared or static libraries, through a separate
440 o Rework of the passing of parameters from one Makefile to another.
441 o Changed ENGINE framework to load dynamic engine modules
442 automatically from specifically given directories.
443 o New structure and ASN.1 functions for CertificatePair.
444 o Changed the ZLIB compression method to be stateful.
445 o Changed the key-generation and primality testing "progress"
446 mechanism to take a structure that contains the ticker
447 function and an argument.
448 o New engine module: GMP (performs private key exponentiation).
449 o New engine module: VIA PadLOck ACE extension in VIA C3
451 o Added support for IPv6 addresses in certificate extensions.
452 See RFC 1884, section 2.2.
453 o Added support for certificate policy mappings, policy
454 constraints and name constraints.
455 o Added support for multi-valued AVAs in the OpenSSL
457 o Added support for multiple certificates with the same subject
458 in the 'openssl ca' index file.
459 o Make it possible to create self-signed certificates using
460 'openssl ca -selfsign'.
461 o Make it possible to generate a serial number file with
462 'openssl ca -create_serial'.
463 o New binary search functions with extended functionality.
465 o New STORE structure and library to provide an interface to all
466 sorts of data repositories. Supports storage of public and
467 private keys, certificates, CRLs, numbers and arbitrary blobs.
468 This library is unfortunately unfinished and unused within
470 o New control functions for the error stack.
471 o Changed the PKCS#7 library to support one-pass S/MIME
473 o Added the possibility to compile without old deprecated
474 functionality with the OPENSSL_NO_DEPRECATED macro or the
475 'no-deprecated' argument to the config and Configure scripts.
476 o Constification of all ASN.1 conversion functions, and other
478 o Improved platform support for PowerPC.
479 o New FIPS 180-2 algorithms (SHA-224, -256, -384 and -512).
480 o New X509_VERIFY_PARAM structure to support parametrisation
481 of X.509 path validation.
482 o Major overhaul of RC4 performance on Intel P4, IA-64 and
484 o Changed the Configure script to have some algorithms disabled
485 by default. Those can be explicitly enabled with the new
486 argument form 'enable-xxx'.
487 o Change the default digest in 'openssl' commands from MD5 to
489 o Added support for DTLS.
490 o New BIGNUM blinding.
491 o Added support for the RSA-PSS encryption scheme
492 o Added support for the RSA X.931 padding.
493 o Added support for BSD sockets on NetWare.
494 o Added support for files larger than 2GB.
495 o Added initial support for Win64.
496 o Added alternate pkg-config files.
498 Major changes between OpenSSL 0.9.7l and OpenSSL 0.9.7m [23 Feb 2007]:
500 o FIPS 1.1.1 module linking.
501 o Various ciphersuite selection fixes.
503 Major changes between OpenSSL 0.9.7k and OpenSSL 0.9.7l [28 Sep 2006]:
505 o Introduce limits to prevent malicious key DoS (CVE-2006-2940)
506 o Fix security issues (CVE-2006-2937, CVE-2006-3737, CVE-2006-4343)
508 Major changes between OpenSSL 0.9.7j and OpenSSL 0.9.7k [5 Sep 2006]:
510 o Fix Daniel Bleichenbacher forged signature attack, CVE-2006-4339
512 Major changes between OpenSSL 0.9.7i and OpenSSL 0.9.7j [4 May 2006]:
514 o Visual C++ 2005 fixes.
515 o Update Windows build system for FIPS.
517 Major changes between OpenSSL 0.9.7h and OpenSSL 0.9.7i [14 Oct 2005]:
519 o Give EVP_MAX_MD_SIZE it's old value, except for a FIPS build.
521 Major changes between OpenSSL 0.9.7g and OpenSSL 0.9.7h [11 Oct 2005]:
523 o Fix SSL 2.0 Rollback, CVE-2005-2969
524 o Allow use of fixed-length exponent on DSA signing
525 o Default fixed-window RSA, DSA, DH private-key operations
527 Major changes between OpenSSL 0.9.7f and OpenSSL 0.9.7g [11 Apr 2005]:
529 o More compilation issues fixed.
530 o Adaptation to more modern Kerberos API.
531 o Enhanced or corrected configuration for Solaris64, Mingw and Cygwin.
532 o Enhanced x86_64 assembler BIGNUM module.
533 o More constification.
534 o Added processing of proxy certificates (RFC 3820).
536 Major changes between OpenSSL 0.9.7e and OpenSSL 0.9.7f [22 Mar 2005]:
538 o Several compilation issues fixed.
539 o Many memory allocation failure checks added.
540 o Improved comparison of X509 Name type.
541 o Mandatory basic checks on certificates.
542 o Performance improvements.
544 Major changes between OpenSSL 0.9.7d and OpenSSL 0.9.7e [25 Oct 2004]:
546 o Fix race condition in CRL checking code.
547 o Fixes to PKCS#7 (S/MIME) code.
549 Major changes between OpenSSL 0.9.7c and OpenSSL 0.9.7d [17 Mar 2004]:
551 o Security: Fix Kerberos ciphersuite SSL/TLS handshaking bug
552 o Security: Fix null-pointer assignment in do_change_cipher_spec()
553 o Allow multiple active certificates with same subject in CA index
554 o Multiple X509 verification fixes
555 o Speed up HMAC and other operations
557 Major changes between OpenSSL 0.9.7b and OpenSSL 0.9.7c [30 Sep 2003]:
559 o Security: fix various ASN1 parsing bugs.
560 o New -ignore_err option to OCSP utility.
561 o Various interop and bug fixes in S/MIME code.
562 o SSL/TLS protocol fix for unrequested client certificates.
564 Major changes between OpenSSL 0.9.7a and OpenSSL 0.9.7b [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 Configuration: Irix fixes, AIX fixes, better mingw support.
570 o Support for new platforms: linux-ia64-ecc.
571 o Build: shared library support fixes.
572 o ASN.1: treat domainComponent correctly.
573 o Documentation: fixes and additions.
575 Major changes between OpenSSL 0.9.7 and OpenSSL 0.9.7a [19 Feb 2003]:
577 o Security: Important security related bugfixes.
578 o Enhanced compatibility with MIT Kerberos.
579 o Can be built without the ENGINE framework.
580 o IA32 assembler enhancements.
581 o Support for new platforms: FreeBSD/IA64 and FreeBSD/Sparc64.
582 o Configuration: the no-err option now works properly.
583 o SSL/TLS: now handles manual certificate chain building.
584 o SSL/TLS: certain session ID malfunctions corrected.
586 Major changes between OpenSSL 0.9.6 and OpenSSL 0.9.7 [30 Dec 2002]:
588 o New library section OCSP.
589 o Complete rewrite of ASN1 code.
590 o CRL checking in verify code and openssl utility.
591 o Extension copying in 'ca' utility.
592 o Flexible display options in 'ca' utility.
593 o Provisional support for international characters with UTF8.
594 o Support for external crypto devices ('engine') is no longer
595 a separate distribution.
596 o New elliptic curve library section.
597 o New AES (Rijndael) library section.
598 o Support for new platforms: Windows CE, Tandem OSS, A/UX, AIX 64-bit,
599 Linux x86_64, Linux 64-bit on Sparc v9
600 o Extended support for some platforms: VxWorks
601 o Enhanced support for shared libraries.
602 o Now only builds PIC code when shared library support is requested.
603 o Support for pkg-config.
604 o Lots of new manuals.
605 o Makes symbolic links to or copies of manuals to cover all described
607 o Change DES API to clean up the namespace (some applications link also
608 against libdes providing similar functions having the same name).
609 Provide macros for backward compatibility (will be removed in the
611 o Unify handling of cryptographic algorithms (software and engine)
612 to be available via EVP routines for asymmetric and symmetric ciphers.
613 o NCONF: new configuration handling routines.
614 o Change API to use more 'const' modifiers to improve error checking
616 o Finally remove references to RSAref.
617 o Reworked parts of the BIGNUM code.
618 o Support for new engines: Broadcom ubsec, Accelerated Encryption
619 Processing, IBM 4758.
620 o A few new engines added in the demos area.
621 o Extended and corrected OID (object identifier) table.
622 o PRNG: query at more locations for a random device, automatic query for
623 EGD style random sources at several locations.
624 o SSL/TLS: allow optional cipher choice according to server's preference.
625 o SSL/TLS: allow server to explicitly set new session ids.
626 o SSL/TLS: support Kerberos cipher suites (RFC2712).
627 Only supports MIT Kerberos for now.
628 o SSL/TLS: allow more precise control of renegotiations and sessions.
629 o SSL/TLS: add callback to retrieve SSL/TLS messages.
630 o SSL/TLS: support AES cipher suites (RFC3268).
632 Major changes between OpenSSL 0.9.6j and OpenSSL 0.9.6k [30 Sep 2003]:
634 o Security: fix various ASN1 parsing bugs.
635 o SSL/TLS protocol fix for unrequested client certificates.
637 Major changes between OpenSSL 0.9.6i and OpenSSL 0.9.6j [10 Apr 2003]:
639 o Security: counter the Klima-Pokorny-Rosa extension of
640 Bleichbacher's attack
641 o Security: make RSA blinding default.
642 o Build: shared library support fixes.
644 Major changes between OpenSSL 0.9.6h and OpenSSL 0.9.6i [19 Feb 2003]:
646 o Important security related bugfixes.
648 Major changes between OpenSSL 0.9.6g and OpenSSL 0.9.6h [5 Dec 2002]:
650 o New configuration targets for Tandem OSS and A/UX.
651 o New OIDs for Microsoft attributes.
652 o Better handling of SSL session caching.
653 o Better comparison of distinguished names.
654 o Better handling of shared libraries in a mixed GNU/non-GNU environment.
655 o Support assembler code with Borland C.
656 o Fixes for length problems.
657 o Fixes for uninitialised variables.
658 o Fixes for memory leaks, some unusual crashes and some race conditions.
659 o Fixes for smaller building problems.
660 o Updates of manuals, FAQ and other instructive documents.
662 Major changes between OpenSSL 0.9.6f and OpenSSL 0.9.6g [9 Aug 2002]:
664 o Important building fixes on Unix.
666 Major changes between OpenSSL 0.9.6e and OpenSSL 0.9.6f [8 Aug 2002]:
668 o Various important bugfixes.
670 Major changes between OpenSSL 0.9.6d and OpenSSL 0.9.6e [30 Jul 2002]:
672 o Important security related bugfixes.
673 o Various SSL/TLS library bugfixes.
675 Major changes between OpenSSL 0.9.6c and OpenSSL 0.9.6d [9 May 2002]:
677 o Various SSL/TLS library bugfixes.
678 o Fix DH parameter generation for 'non-standard' generators.
680 Major changes between OpenSSL 0.9.6b and OpenSSL 0.9.6c [21 Dec 2001]:
682 o Various SSL/TLS library bugfixes.
683 o BIGNUM library fixes.
684 o RSA OAEP and random number generation fixes.
685 o Object identifiers corrected and added.
686 o Add assembler BN routines for IA64.
687 o Add support for OS/390 Unix, UnixWare with gcc, OpenUNIX 8,
688 MIPS Linux; shared library support for Irix, HP-UX.
689 o Add crypto accelerator support for AEP, Baltimore SureWare,
690 Broadcom and Cryptographic Appliance's keyserver
691 [in 0.9.6c-engine release].
693 Major changes between OpenSSL 0.9.6a and OpenSSL 0.9.6b [9 Jul 2001]:
695 o Security fix: PRNG improvements.
696 o Security fix: RSA OAEP check.
697 o Security fix: Reinsert and fix countermeasure to Bleichbacher's
699 o MIPS bug fix in BIGNUM.
700 o Bug fix in "openssl enc".
701 o Bug fix in X.509 printing routine.
702 o Bug fix in DSA verification routine and DSA S/MIME verification.
703 o Bug fix to make PRNG thread-safe.
704 o Bug fix in RAND_file_name().
705 o Bug fix in compatibility mode trust settings.
706 o Bug fix in blowfish EVP.
707 o Increase default size for BIO buffering filter.
708 o Compatibility fixes in some scripts.
710 Major changes between OpenSSL 0.9.6 and OpenSSL 0.9.6a [5 Apr 2001]:
712 o Security fix: change behavior of OpenSSL to avoid using
713 environment variables when running as root.
714 o Security fix: check the result of RSA-CRT to reduce the
715 possibility of deducing the private key from an incorrectly
716 calculated signature.
717 o Security fix: prevent Bleichenbacher's DSA attack.
718 o Security fix: Zero the premaster secret after deriving the
719 master secret in DH ciphersuites.
720 o Reimplement SSL_peek(), which had various problems.
721 o Compatibility fix: the function des_encrypt() renamed to
722 des_encrypt1() to avoid clashes with some Unixen libc.
723 o Bug fixes for Win32, HP/UX and Irix.
724 o Bug fixes in BIGNUM, SSL, PKCS#7, PKCS#12, X.509, CONF and
725 memory checking routines.
726 o Bug fixes for RSA operations in threaded environments.
727 o Bug fixes in misc. openssl applications.
728 o Remove a few potential memory leaks.
729 o Add tighter checks of BIGNUM routines.
730 o Shared library support has been reworked for generality.
731 o More documentation.
732 o New function BN_rand_range().
733 o Add "-rand" option to openssl s_client and s_server.
735 Major changes between OpenSSL 0.9.5a and OpenSSL 0.9.6 [10 Oct 2000]:
737 o Some documentation for BIO and SSL libraries.
738 o Enhanced chain verification using key identifiers.
739 o New sign and verify options to 'dgst' application.
740 o Support for DER and PEM encoded messages in 'smime' application.
741 o New 'rsautl' application, low level RSA utility.
743 o Bugfix for SSL rollback padding check.
744 o Support for external crypto devices [1].
745 o Enhanced EVP interface.
747 [1] The support for external crypto devices is currently a separate
748 distribution. See the file README.ENGINE.
750 Major changes between OpenSSL 0.9.5 and OpenSSL 0.9.5a [1 Apr 2000]:
752 o Bug fixes for Win32, SuSE Linux, NeXTSTEP and FreeBSD 2.2.8
753 o Shared library support for HPUX and Solaris-gcc
754 o Support of Linux/IA64
755 o Assembler support for Mingw32
756 o New 'rand' application
757 o New way to check for existence of algorithms from scripts
759 Major changes between OpenSSL 0.9.4 and OpenSSL 0.9.5 [25 May 2000]:
761 o S/MIME support in new 'smime' command
762 o Documentation for the OpenSSL command line application
763 o Automation of 'req' application
764 o Fixes to make s_client, s_server work under Windows
765 o Support for multiple fieldnames in SPKACs
766 o New SPKAC command line utilty and associated library functions
767 o Options to allow passwords to be obtained from various sources
768 o New public key PEM format and options to handle it
769 o Many other fixes and enhancements to command line utilities
770 o Usable certificate chain verification
771 o Certificate purpose checking
772 o Certificate trust settings
773 o Support of authority information access extension
774 o Extensions in certificate requests
775 o Simplified X509 name and attribute routines
776 o Initial (incomplete) support for international character sets
777 o New DH_METHOD, DSA_METHOD and enhanced RSA_METHOD
778 o Read only memory BIOs and simplified creation function
779 o TLS/SSL protocol bugfixes: Accept TLS 'client hello' in SSL 3.0
780 record; allow fragmentation and interleaving of handshake and other
782 o TLS/SSL code now "tolerates" MS SGC
783 o Work around for Netscape client certificate hang bug
784 o RSA_NULL option that removes RSA patent code but keeps other
786 o Memory leak detection now allows applications to add extra information
787 via a per-thread stack
788 o PRNG robustness improved
790 o BIGNUM library bug fixes
791 o Faster DSA parameter generation
792 o Enhanced support for Alpha Linux
793 o Experimental MacOS support
795 Major changes between OpenSSL 0.9.3 and OpenSSL 0.9.4 [9 Aug 1999]:
797 o Transparent support for PKCS#8 format private keys: these are used
798 by several software packages and are more secure than the standard
800 o PKCS#5 v2.0 implementation
801 o Password callbacks have a new void * argument for application data
802 o Avoid various memory leaks
803 o New pipe-like BIO that allows using the SSL library when actual I/O
804 must be handled by the application (BIO pair)
806 Major changes between OpenSSL 0.9.2b and OpenSSL 0.9.3 [24 May 1999]:
807 o Lots of enhancements and cleanups to the Configuration mechanism
808 o RSA OEAP related fixes
809 o Added `openssl ca -revoke' option for revoking a certificate
810 o Source cleanups: const correctness, type-safe stacks and ASN.1 SETs
811 o Source tree cleanups: removed lots of obsolete files
812 o Thawte SXNet, certificate policies and CRL distribution points
814 o Preliminary (experimental) S/MIME support
815 o Support for ASN.1 UTF8String and VisibleString
816 o Full integration of PKCS#12 code
817 o Sparc assembler bignum implementation, optimized hash functions
818 o Option to disable selected ciphers
820 Major changes between OpenSSL 0.9.1c and OpenSSL 0.9.2b [22 Mar 1999]:
821 o Fixed a security hole related to session resumption
822 o Fixed RSA encryption routines for the p < q case
823 o "ALL" in cipher lists now means "everything except NULL ciphers"
824 o Support for Triple-DES CBCM cipher
825 o Support of Optimal Asymmetric Encryption Padding (OAEP) for RSA
826 o First support for new TLSv1 ciphers
827 o Added a few new BIOs (syslog BIO, reliable BIO)
828 o Extended support for DSA certificate/keys.
829 o Extended support for Certificate Signing Requests (CSR)
830 o Initial support for X.509v3 extensions
831 o Extended support for compression inside the SSL record layer
832 o Overhauled Win32 builds
833 o Cleanups and fixes to the Big Number (BN) library
834 o Support for ASN.1 GeneralizedTime
835 o Splitted ASN.1 SETs from SEQUENCEs
836 o ASN1 and PEM support for Netscape Certificate Sequences
837 o Overhauled Perl interface
838 o Lots of source tree cleanups.
839 o Lots of memory leak fixes.
842 Major changes between SSLeay 0.9.0b and OpenSSL 0.9.1c [23 Dec 1998]:
843 o Integration of the popular NO_RSA/NO_DSA patches
844 o Initial support for compression inside the SSL record layer
845 o Added BIO proxy and filtering functionality
846 o Extended Big Number (BN) library
847 o Added RIPE MD160 message digest
848 o Addeed support for RC2/64bit cipher
849 o Extended ASN.1 parser routines
850 o Adjustations of the source tree for CVS
851 o Support for various new platforms