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side-by-side code changes report for "NEWS": 1.1.1f_vs_1.1.1g
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 1.1.1f and OpenSSL 1.1.1g [21 Apr 2020]
10 o Fixed segmentation fault in SSL_check_chain() (CVE-2020-1967)
12 Major changes between OpenSSL 1.1.1e and OpenSSL 1.1.1f [31 Mar 2020]
14 o Revert the unexpected EOF reporting via SSL_ERROR_SSL
16 Major changes between OpenSSL 1.1.1d and OpenSSL 1.1.1e [17 Mar 2020]
18 o Fixed an overflow bug in the x64_64 Montgomery squaring procedure
19 used in exponentiation with 512-bit moduli (CVE-2019-1551)
20 o Properly detect unexpected EOF while reading in libssl and report
21 it via SSL_ERROR_SSL
23 Major changes between OpenSSL 1.1.1c and OpenSSL 1.1.1d [10 Sep 2019]
25 o Fixed a fork protection issue (CVE-2019-1549)
26 o Fixed a padding oracle in PKCS7_dataDecode and CMS_decrypt_set1_pkey
28 o For built-in EC curves, ensure an EC_GROUP built from the curve name is
29 used even when parsing explicit parameters
30 o Compute ECC cofactors if not provided during EC_GROUP construction
32 o Early start up entropy quality from the DEVRANDOM seed source has been
33 improved for older Linux systems
34 o Correct the extended master secret constant on EBCDIC systems
35 o Use Windows installation paths in the mingw builds (CVE-2019-1552)
36 o Changed DH_check to accept parameters with order q and 2q subgroups
37 o Significantly reduce secure memory usage by the randomness pools
38 o Revert the DEVRANDOM_WAIT feature for Linux systems
40 Major changes between OpenSSL 1.1.1b and OpenSSL 1.1.1c [28 May 2019]
42 o Prevent over long nonces in ChaCha20-Poly1305 (CVE-2019-1543)
44 Major changes between OpenSSL 1.1.1a and OpenSSL 1.1.1b [26 Feb 2019]
46 o Change the info callback signals for the start and end of a post-handshake
47 message exchange in TLSv1.3.
48 o Fix a bug in DTLS over SCTP. This breaks interoperability with older versions
49 of OpenSSL like OpenSSL 1.1.0 and OpenSSL 1.0.2.
51 Major changes between OpenSSL 1.1.1 and OpenSSL 1.1.1a [20 Nov 2018]
53 o Timing vulnerability in DSA signature generation (CVE-2018-0734)
54 o Timing vulnerability in ECDSA signature generation (CVE-2018-0735)
56 Major changes between OpenSSL 1.1.0i and OpenSSL 1.1.1 [11 Sep 2018]
58 o Support for TLSv1.3 added (see https://wiki.openssl.org/index.php/TLS1.3
59 for further important information). The TLSv1.3 implementation includes:
60 o Fully compliant implementation of RFC8446 (TLSv1.3) on by default
61 o Early data (0-RTT)
62 o Post-handshake authentication and key update
63 o Middlebox Compatibility Mode
64 o TLSv1.3 PSKs
65 o Support for all five RFC8446 ciphersuites
66 o RSA-PSS signature algorithms (backported to TLSv1.2)
67 o Configurable session ticket support
68 o Stateless server support
69 o Rewrite of the packet construction code for "safer" packet handling
70 o Rewrite of the extension handling code
71 o Complete rewrite of the OpenSSL random number generator to introduce the
72 following capabilities
73 o The default RAND method now utilizes an AES-CTR DRBG according to
74 NIST standard SP 800-90Ar1.
75 o Support for multiple DRBG instances with seed chaining.
76 o There is a public and private DRBG instance.
77 o The DRBG instances are fork-safe.
78 o Keep all global DRBG instances on the secure heap if it is enabled.
79 o The public and private DRBG instance are per thread for lock free
81 o Support for various new cryptographic algorithms including:
82 o SHA3
83 o SHA512/224 and SHA512/256
84 o EdDSA (both Ed25519 and Ed448) including X509 and TLS support
85 o X448 (adding to the existing X25519 support in 1.1.0)
86 o Multi-prime RSA
87 o SM2
88 o SM3
89 o SM4
90 o SipHash
91 o ARIA (including TLS support)
92 o Significant Side-Channel attack security improvements
93 o Add a new ClientHello callback to provide the ability to adjust the SSL
94 object at an early stage.
95 o Add 'Maximum Fragment Length' TLS extension negotiation and support
96 o A new STORE module, which implements a uniform and URI based reader of
97 stores that can contain keys, certificates, CRLs and numerous other
99 o Move the display of configuration data to configdata.pm.
100 o Allow GNU style "make variables" to be used with Configure.
101 o Claim the namespaces OSSL and OPENSSL, represented as symbol prefixes
102 o Rewrite of devcrypto engine
104 Major changes between OpenSSL 1.1.0h and OpenSSL 1.1.0i [under development]
106 o Client DoS due to large DH parameter (CVE-2018-0732)
107 o Cache timing vulnerability in RSA Key Generation (CVE-2018-0737)
109 Major changes between OpenSSL 1.1.0g and OpenSSL 1.1.0h [under development]
111 o Constructed ASN.1 types with a recursive definition could exceed the
112 stack (CVE-2018-0739)
113 o Incorrect CRYPTO_memcmp on HP-UX PA-RISC (CVE-2018-0733)
114 o rsaz_1024_mul_avx2 overflow bug on x86_64 (CVE-2017-3738)
116 Major changes between OpenSSL 1.1.0f and OpenSSL 1.1.0g [2 Nov 2017]
118 o bn_sqrx8x_internal carry bug on x86_64 (CVE-2017-3736)
119 o Malformed X.509 IPAddressFamily could cause OOB read (CVE-2017-3735)
121 Major changes between OpenSSL 1.1.0e and OpenSSL 1.1.0f [25 May 2017]
123 o config now recognises 64-bit mingw and chooses mingw64 instead of mingw
125 Major changes between OpenSSL 1.1.0d and OpenSSL 1.1.0e [16 Feb 2017]
127 o Encrypt-Then-Mac renegotiation crash (CVE-2017-3733)
129 Major changes between OpenSSL 1.1.0c and OpenSSL 1.1.0d [26 Jan 2017]
131 o Truncated packet could crash via OOB read (CVE-2017-3731)
132 o Bad (EC)DHE parameters cause a client crash (CVE-2017-3730)
133 o BN_mod_exp may produce incorrect results on x86_64 (CVE-2017-3732)
135 Major changes between OpenSSL 1.1.0b and OpenSSL 1.1.0c [10 Nov 2016]
137 o ChaCha20/Poly1305 heap-buffer-overflow (CVE-2016-7054)
138 o CMS Null dereference (CVE-2016-7053)
139 o Montgomery multiplication may produce incorrect results (CVE-2016-7055)
141 Major changes between OpenSSL 1.1.0a and OpenSSL 1.1.0b [26 Sep 2016]
143 o Fix Use After Free for large message sizes (CVE-2016-6309)
145 Major changes between OpenSSL 1.1.0 and OpenSSL 1.1.0a [22 Sep 2016]
147 o OCSP Status Request extension unbounded memory growth (CVE-2016-6304)
148 o SSL_peek() hang on empty record (CVE-2016-6305)
149 o Excessive allocation of memory in tls_get_message_header()
151 o Excessive allocation of memory in dtls1_preprocess_fragment()
154 Major changes between OpenSSL 1.0.2h and OpenSSL 1.1.0 [25 Aug 2016]
156 o Copyright text was shrunk to a boilerplate that points to the license
157 o "shared" builds are now the default when possible
158 o Added support for "pipelining"
159 o Added the AFALG engine
160 o New threading API implemented
161 o Support for ChaCha20 and Poly1305 added to libcrypto and libssl
162 o Support for extended master secret
163 o CCM ciphersuites
164 o Reworked test suite, now based on perl, Test::Harness and Test::More
165 o *Most* libcrypto and libssl public structures were made opaque,
167 BIGNUM and associated types, EC_KEY and EC_KEY_METHOD,
168 DH and DH_METHOD, DSA and DSA_METHOD, RSA and RSA_METHOD,
169 BIO and BIO_METHOD, EVP_MD_CTX, EVP_MD, EVP_CIPHER_CTX,
170 EVP_CIPHER, EVP_PKEY and associated types, HMAC_CTX,
171 X509, X509_CRL, X509_OBJECT, X509_STORE_CTX, X509_STORE,
172 X509_LOOKUP, X509_LOOKUP_METHOD
173 o libssl internal structures made opaque
174 o SSLv2 support removed
175 o Kerberos ciphersuite support removed
176 o RC4 removed from DEFAULT ciphersuites in libssl
177 o 40 and 56 bit cipher support removed from libssl
178 o All public header files moved to include/openssl, no more symlinking
179 o SSL/TLS state machine, version negotiation and record layer rewritten
180 o EC revision: now operations use new EC_KEY_METHOD.
181 o Support for OCB mode added to libcrypto
182 o Support for asynchronous crypto operations added to libcrypto and libssl
183 o Deprecated interfaces can now be disabled at build time either
184 relative to the latest release via the "no-deprecated" Configure
185 argument, or via the "--api=1.1.0|1.0.0|0.9.8" option.
186 o Application software can be compiled with -DOPENSSL_API_COMPAT=version
187 to ensure that features deprecated in that version are not exposed.
188 o Support for RFC6698/RFC7671 DANE TLSA peer authentication
189 o Change of Configure to use --prefix as the main installation
190 directory location rather than --openssldir. The latter becomes
191 the directory for certs, private key and openssl.cnf exclusively.
192 o Reworked BIO networking library, with full support for IPv6.
193 o New "unified" build system
194 o New security levels
195 o Support for scrypt algorithm
196 o Support for X25519
197 o Extended SSL_CONF support using configuration files
198 o KDF algorithm support. Implement TLS PRF as a KDF.
199 o Support for Certificate Transparency
200 o HKDF support.
202 Major changes between OpenSSL 1.0.2g and OpenSSL 1.0.2h [3 May 2016]
204 o Prevent padding oracle in AES-NI CBC MAC check (CVE-2016-2107)
205 o Fix EVP_EncodeUpdate overflow (CVE-2016-2105)
206 o Fix EVP_EncryptUpdate overflow (CVE-2016-2106)
207 o Prevent ASN.1 BIO excessive memory allocation (CVE-2016-2109)
208 o EBCDIC overread (CVE-2016-2176)
209 o Modify behavior of ALPN to invoke callback after SNI/servername
210 callback, such that updates to the SSL_CTX affect ALPN.
211 o Remove LOW from the DEFAULT cipher list. This removes singles DES from
212 the default.
213 o Only remove the SSLv2 methods with the no-ssl2-method option.
215 Major changes between OpenSSL 1.0.2f and OpenSSL 1.0.2g [1 Mar 2016]
217 o Disable weak ciphers in SSLv3 and up in default builds of OpenSSL.
218 o Disable SSLv2 default build, default negotiation and weak ciphers
220 o Fix a double-free in DSA code (CVE-2016-0705)
221 o Disable SRP fake user seed to address a server memory leak
223 o Fix BN_hex2bn/BN_dec2bn NULL pointer deref/heap corruption
225 o Fix memory issues in BIO_*printf functions (CVE-2016-0799)
226 o Fix side channel attack on modular exponentiation (CVE-2016-0702)
228 Major changes between OpenSSL 1.0.2e and OpenSSL 1.0.2f [28 Jan 2016]
230 o DH small subgroups (CVE-2016-0701)
231 o SSLv2 doesn't block disabled ciphers (CVE-2015-3197)
233 Major changes between OpenSSL 1.0.2d and OpenSSL 1.0.2e [3 Dec 2015]
235 o BN_mod_exp may produce incorrect results on x86_64 (CVE-2015-3193)
236 o Certificate verify crash with missing PSS parameter (CVE-2015-3194)
237 o X509_ATTRIBUTE memory leak (CVE-2015-3195)
238 o Rewrite EVP_DecodeUpdate (base64 decoding) to fix several bugs
239 o In DSA_generate_parameters_ex, if the provided seed is too short,
240 return an error
242 Major changes between OpenSSL 1.0.2c and OpenSSL 1.0.2d [9 Jul 2015]
244 o Alternate chains certificate forgery (CVE-2015-1793)
245 o Race condition handling PSK identify hint (CVE-2015-3196)
247 Major changes between OpenSSL 1.0.2b and OpenSSL 1.0.2c [12 Jun 2015]
249 o Fix HMAC ABI incompatibility
251 Major changes between OpenSSL 1.0.2a and OpenSSL 1.0.2b [11 Jun 2015]
253 o Malformed ECParameters causes infinite loop (CVE-2015-1788)
254 o Exploitable out-of-bounds read in X509_cmp_time (CVE-2015-1789)
255 o PKCS7 crash with missing EnvelopedContent (CVE-2015-1790)
256 o CMS verify infinite loop with unknown hash function (CVE-2015-1792)
257 o Race condition handling NewSessionTicket (CVE-2015-1791)
259 Major changes between OpenSSL 1.0.2 and OpenSSL 1.0.2a [19 Mar 2015]
261 o OpenSSL 1.0.2 ClientHello sigalgs DoS fix (CVE-2015-0291)
262 o Multiblock corrupted pointer fix (CVE-2015-0290)
263 o Segmentation fault in DTLSv1_listen fix (CVE-2015-0207)
264 o Segmentation fault in ASN1_TYPE_cmp fix (CVE-2015-0286)
265 o Segmentation fault for invalid PSS parameters fix (CVE-2015-0208)
266 o ASN.1 structure reuse memory corruption fix (CVE-2015-0287)
267 o PKCS7 NULL pointer dereferences fix (CVE-2015-0289)
268 o DoS via reachable assert in SSLv2 servers fix (CVE-2015-0293)
269 o Empty CKE with client auth and DHE fix (CVE-2015-1787)
270 o Handshake with unseeded PRNG fix (CVE-2015-0285)
271 o Use After Free following d2i_ECPrivatekey error fix (CVE-2015-0209)
272 o X509_to_X509_REQ NULL pointer deref fix (CVE-2015-0288)
273 o Removed the export ciphers from the DEFAULT ciphers
275 Major changes between OpenSSL 1.0.1l and OpenSSL 1.0.2 [22 Jan 2015]:
277 o Suite B support for TLS 1.2 and DTLS 1.2
278 o Support for DTLS 1.2
279 o TLS automatic EC curve selection.
280 o API to set TLS supported signature algorithms and curves
281 o SSL_CONF configuration API.
282 o TLS Brainpool support.
283 o ALPN support.
284 o CMS support for RSA-PSS, RSA-OAEP, ECDH and X9.42 DH.
286 Major changes between OpenSSL 1.0.1k and OpenSSL 1.0.1l [15 Jan 2015]
288 o Build fixes for the Windows and OpenVMS platforms
290 Major changes between OpenSSL 1.0.1j and OpenSSL 1.0.1k [8 Jan 2015]
292 o Fix for CVE-2014-3571
293 o Fix for CVE-2015-0206
294 o Fix for CVE-2014-3569
295 o Fix for CVE-2014-3572
296 o Fix for CVE-2015-0204
297 o Fix for CVE-2015-0205
298 o Fix for CVE-2014-8275
299 o Fix for CVE-2014-3570
301 Major changes between OpenSSL 1.0.1i and OpenSSL 1.0.1j [15 Oct 2014]
303 o Fix for CVE-2014-3513
304 o Fix for CVE-2014-3567
305 o Mitigation for CVE-2014-3566 (SSL protocol vulnerability)
306 o Fix for CVE-2014-3568
308 Major changes between OpenSSL 1.0.1h and OpenSSL 1.0.1i [6 Aug 2014]
310 o Fix for CVE-2014-3512
311 o Fix for CVE-2014-3511
312 o Fix for CVE-2014-3510
313 o Fix for CVE-2014-3507
314 o Fix for CVE-2014-3506
315 o Fix for CVE-2014-3505
316 o Fix for CVE-2014-3509
317 o Fix for CVE-2014-5139
318 o Fix for CVE-2014-3508
320 Major changes between OpenSSL 1.0.1g and OpenSSL 1.0.1h [5 Jun 2014]
322 o Fix for CVE-2014-0224
323 o Fix for CVE-2014-0221
324 o Fix for CVE-2014-0198
325 o Fix for CVE-2014-0195
326 o Fix for CVE-2014-3470
327 o Fix for CVE-2010-5298
329 Major changes between OpenSSL 1.0.1f and OpenSSL 1.0.1g [7 Apr 2014]
331 o Fix for CVE-2014-0160
332 o Add TLS padding extension workaround for broken servers.
333 o Fix for CVE-2014-0076
335 Major changes between OpenSSL 1.0.1e and OpenSSL 1.0.1f [6 Jan 2014]
337 o Don't include gmt_unix_time in TLS server and client random values
338 o Fix for TLS record tampering bug CVE-2013-4353
339 o Fix for TLS version checking bug CVE-2013-6449
340 o Fix for DTLS retransmission bug CVE-2013-6450
342 Major changes between OpenSSL 1.0.1d and OpenSSL 1.0.1e [11 Feb 2013]:
344 o Corrected fix for CVE-2013-0169
346 Major changes between OpenSSL 1.0.1c and OpenSSL 1.0.1d [4 Feb 2013]:
348 o Fix renegotiation in TLS 1.1, 1.2 by using the correct TLS version.
349 o Include the fips configuration module.
350 o Fix OCSP bad key DoS attack CVE-2013-0166
351 o Fix for SSL/TLS/DTLS CBC plaintext recovery attack CVE-2013-0169
352 o Fix for TLS AESNI record handling flaw CVE-2012-2686
354 Major changes between OpenSSL 1.0.1b and OpenSSL 1.0.1c [10 May 2012]:
356 o Fix TLS/DTLS record length checking bug CVE-2012-2333
357 o Don't attempt to use non-FIPS composite ciphers in FIPS mode.
359 Major changes between OpenSSL 1.0.1a and OpenSSL 1.0.1b [26 Apr 2012]:
361 o Fix compilation error on non-x86 platforms.
362 o Make FIPS capable OpenSSL ciphers work in non-FIPS mode.
363 o Fix SSL_OP_NO_TLSv1_1 clash with SSL_OP_ALL in OpenSSL 1.0.0
365 Major changes between OpenSSL 1.0.1 and OpenSSL 1.0.1a [19 Apr 2012]:
367 o Fix for ASN1 overflow bug CVE-2012-2110
368 o Workarounds for some servers that hang on long client hellos.
369 o Fix SEGV in AES code.
371 Major changes between OpenSSL 1.0.0h and OpenSSL 1.0.1 [14 Mar 2012]:
373 o TLS/DTLS heartbeat support.
374 o SCTP support.
375 o RFC 5705 TLS key material exporter.
376 o RFC 5764 DTLS-SRTP negotiation.
377 o Next Protocol Negotiation.
378 o PSS signatures in certificates, requests and CRLs.
379 o Support for password based recipient info for CMS.
380 o Support TLS v1.2 and TLS v1.1.
381 o Preliminary FIPS capability for unvalidated 2.0 FIPS module.
382 o SRP support.
384 Major changes between OpenSSL 1.0.0g and OpenSSL 1.0.0h [12 Mar 2012]:
386 o Fix for CMS/PKCS#7 MMA CVE-2012-0884
387 o Corrected fix for CVE-2011-4619
388 o Various DTLS fixes.
390 Major changes between OpenSSL 1.0.0f and OpenSSL 1.0.0g [18 Jan 2012]:
392 o Fix for DTLS DoS issue CVE-2012-0050
394 Major changes between OpenSSL 1.0.0e and OpenSSL 1.0.0f [4 Jan 2012]:
396 o Fix for DTLS plaintext recovery attack CVE-2011-4108
397 o Clear block padding bytes of SSL 3.0 records CVE-2011-4576
398 o Only allow one SGC handshake restart for SSL/TLS CVE-2011-4619
399 o Check parameters are not NULL in GOST ENGINE CVE-2012-0027
400 o Check for malformed RFC3779 data CVE-2011-4577
402 Major changes between OpenSSL 1.0.0d and OpenSSL 1.0.0e [6 Sep 2011]:
404 o Fix for CRL vulnerability issue CVE-2011-3207
405 o Fix for ECDH crashes CVE-2011-3210
406 o Protection against EC timing attacks.
407 o Support ECDH ciphersuites for certificates using SHA2 algorithms.
408 o Various DTLS fixes.
410 Major changes between OpenSSL 1.0.0c and OpenSSL 1.0.0d [8 Feb 2011]:
412 o Fix for security issue CVE-2011-0014
414 Major changes between OpenSSL 1.0.0b and OpenSSL 1.0.0c [2 Dec 2010]:
416 o Fix for security issue CVE-2010-4180
417 o Fix for CVE-2010-4252
418 o Fix mishandling of absent EC point format extension.
419 o Fix various platform compilation issues.
420 o Corrected fix for security issue CVE-2010-3864.
422 Major changes between OpenSSL 1.0.0a and OpenSSL 1.0.0b [16 Nov 2010]:
424 o Fix for security issue CVE-2010-3864.
425 o Fix for CVE-2010-2939
426 o Fix WIN32 build system for GOST ENGINE.
428 Major changes between OpenSSL 1.0.0 and OpenSSL 1.0.0a [1 Jun 2010]:
430 o Fix for security issue CVE-2010-1633.
431 o GOST MAC and CFB fixes.
433 Major changes between OpenSSL 0.9.8n and OpenSSL 1.0.0 [29 Mar 2010]:
435 o RFC3280 path validation: sufficient to process PKITS tests.
436 o Integrated support for PVK files and keyblobs.
437 o Change default private key format to PKCS#8.
438 o CMS support: able to process all examples in RFC4134
439 o Streaming ASN1 encode support for PKCS#7 and CMS.
440 o Multiple signer and signer add support for PKCS#7 and CMS.
441 o ASN1 printing support.
442 o Whirlpool hash algorithm added.
443 o RFC3161 time stamp support.
444 o New generalised public key API supporting ENGINE based algorithms.
445 o New generalised public key API utilities.
446 o New ENGINE supporting GOST algorithms.
447 o SSL/TLS GOST ciphersuite support.
448 o PKCS#7 and CMS GOST support.
449 o RFC4279 PSK ciphersuite support.
450 o Supported points format extension for ECC ciphersuites.
451 o ecdsa-with-SHA224/256/384/512 signature types.
452 o dsa-with-SHA224 and dsa-with-SHA256 signature types.
453 o Opaque PRF Input TLS extension support.
454 o Updated time routines to avoid OS limitations.
456 Major changes between OpenSSL 0.9.8m and OpenSSL 0.9.8n [24 Mar 2010]:
458 o CFB cipher definition fixes.
459 o Fix security issues CVE-2010-0740 and CVE-2010-0433.
461 Major changes between OpenSSL 0.9.8l and OpenSSL 0.9.8m [25 Feb 2010]:
463 o Cipher definition fixes.
464 o Workaround for slow RAND_poll() on some WIN32 versions.
465 o Remove MD2 from algorithm tables.
466 o SPKAC handling fixes.
467 o Support for RFC5746 TLS renegotiation extension.
468 o Compression memory leak fixed.
469 o Compression session resumption fixed.
470 o Ticket and SNI coexistence fixes.
471 o Many fixes to DTLS handling.
473 Major changes between OpenSSL 0.9.8k and OpenSSL 0.9.8l [5 Nov 2009]:
475 o Temporary work around for CVE-2009-3555: disable renegotiation.
477 Major changes between OpenSSL 0.9.8j and OpenSSL 0.9.8k [25 Mar 2009]:
479 o Fix various build issues.
480 o Fix security issues (CVE-2009-0590, CVE-2009-0591, CVE-2009-0789)
482 Major changes between OpenSSL 0.9.8i and OpenSSL 0.9.8j [7 Jan 2009]:
484 o Fix security issue (CVE-2008-5077)
485 o Merge FIPS 140-2 branch code.
487 Major changes between OpenSSL 0.9.8g and OpenSSL 0.9.8h [28 May 2008]:
489 o CryptoAPI ENGINE support.
490 o Various precautionary measures.
491 o Fix for bugs affecting certificate request creation.
492 o Support for local machine keyset attribute in PKCS#12 files.
494 Major changes between OpenSSL 0.9.8f and OpenSSL 0.9.8g [19 Oct 2007]:
496 o Backport of CMS functionality to 0.9.8.
497 o Fixes for bugs introduced with 0.9.8f.
499 Major changes between OpenSSL 0.9.8e and OpenSSL 0.9.8f [11 Oct 2007]:
501 o Add gcc 4.2 support.
502 o Add support for AES and SSE2 assembly language optimization
503 for VC++ build.
504 o Support for RFC4507bis and server name extensions if explicitly
505 selected at compile time.
506 o DTLS improvements.
507 o RFC4507bis support.
508 o TLS Extensions support.
510 Major changes between OpenSSL 0.9.8d and OpenSSL 0.9.8e [23 Feb 2007]:
512 o Various ciphersuite selection fixes.
513 o RFC3779 support.
515 Major changes between OpenSSL 0.9.8c and OpenSSL 0.9.8d [28 Sep 2006]:
517 o Introduce limits to prevent malicious key DoS (CVE-2006-2940)
518 o Fix security issues (CVE-2006-2937, CVE-2006-3737, CVE-2006-4343)
519 o Changes to ciphersuite selection algorithm
521 Major changes between OpenSSL 0.9.8b and OpenSSL 0.9.8c [5 Sep 2006]:
523 o Fix Daniel Bleichenbacher forged signature attack, CVE-2006-4339
524 o New cipher Camellia
526 Major changes between OpenSSL 0.9.8a and OpenSSL 0.9.8b [4 May 2006]:
528 o Cipher string fixes.
529 o Fixes for VC++ 2005.
530 o Updated ECC cipher suite support.
531 o New functions EVP_CIPHER_CTX_new() and EVP_CIPHER_CTX_free().
532 o Zlib compression usage fixes.
533 o Built in dynamic engine compilation support on Win32.
534 o Fixes auto dynamic engine loading in Win32.
536 Major changes between OpenSSL 0.9.8 and OpenSSL 0.9.8a [11 Oct 2005]:
538 o Fix potential SSL 2.0 rollback, CVE-2005-2969
539 o Extended Windows CE support
541 Major changes between OpenSSL 0.9.7g and OpenSSL 0.9.8 [5 Jul 2005]:
543 o Major work on the BIGNUM library for higher efficiency and to
544 make operations more streamlined and less contradictory. This
545 is the result of a major audit of the BIGNUM library.
546 o Addition of BIGNUM functions for fields GF(2^m) and NIST
547 curves, to support the Elliptic Crypto functions.
548 o Major work on Elliptic Crypto; ECDH and ECDSA added, including
549 the use through EVP, X509 and ENGINE.
550 o New ASN.1 mini-compiler that's usable through the OpenSSL
551 configuration file.
552 o Added support for ASN.1 indefinite length constructed encoding.
553 o New PKCS#12 'medium level' API to manipulate PKCS#12 files.
554 o Complete rework of shared library construction and linking
555 programs with shared or static libraries, through a separate
557 o Rework of the passing of parameters from one Makefile to another.
558 o Changed ENGINE framework to load dynamic engine modules
559 automatically from specifically given directories.
560 o New structure and ASN.1 functions for CertificatePair.
561 o Changed the ZLIB compression method to be stateful.
562 o Changed the key-generation and primality testing "progress"
563 mechanism to take a structure that contains the ticker
564 function and an argument.
565 o New engine module: GMP (performs private key exponentiation).
566 o New engine module: VIA PadLOck ACE extension in VIA C3
567 Nehemiah processors.
568 o Added support for IPv6 addresses in certificate extensions.
569 See RFC 1884, section 2.2.
570 o Added support for certificate policy mappings, policy
571 constraints and name constraints.
572 o Added support for multi-valued AVAs in the OpenSSL
573 configuration file.
574 o Added support for multiple certificates with the same subject
575 in the 'openssl ca' index file.
576 o Make it possible to create self-signed certificates using
577 'openssl ca -selfsign'.
578 o Make it possible to generate a serial number file with
579 'openssl ca -create_serial'.
580 o New binary search functions with extended functionality.
581 o New BUF functions.
582 o New STORE structure and library to provide an interface to all
583 sorts of data repositories. Supports storage of public and
584 private keys, certificates, CRLs, numbers and arbitrary blobs.
585 This library is unfortunately unfinished and unused within
587 o New control functions for the error stack.
588 o Changed the PKCS#7 library to support one-pass S/MIME
590 o Added the possibility to compile without old deprecated
591 functionality with the OPENSSL_NO_DEPRECATED macro or the
592 'no-deprecated' argument to the config and Configure scripts.
593 o Constification of all ASN.1 conversion functions, and other
594 affected functions.
595 o Improved platform support for PowerPC.
596 o New FIPS 180-2 algorithms (SHA-224, -256, -384 and -512).
597 o New X509_VERIFY_PARAM structure to support parameterisation
598 of X.509 path validation.
599 o Major overhaul of RC4 performance on Intel P4, IA-64 and
601 o Changed the Configure script to have some algorithms disabled
602 by default. Those can be explicitly enabled with the new
603 argument form 'enable-xxx'.
604 o Change the default digest in 'openssl' commands from MD5 to
606 o Added support for DTLS.
607 o New BIGNUM blinding.
608 o Added support for the RSA-PSS encryption scheme
609 o Added support for the RSA X.931 padding.
610 o Added support for BSD sockets on NetWare.
611 o Added support for files larger than 2GB.
612 o Added initial support for Win64.
613 o Added alternate pkg-config files.
615 Major changes between OpenSSL 0.9.7l and OpenSSL 0.9.7m [23 Feb 2007]:
617 o FIPS 1.1.1 module linking.
618 o Various ciphersuite selection fixes.
620 Major changes between OpenSSL 0.9.7k and OpenSSL 0.9.7l [28 Sep 2006]:
622 o Introduce limits to prevent malicious key DoS (CVE-2006-2940)
623 o Fix security issues (CVE-2006-2937, CVE-2006-3737, CVE-2006-4343)
625 Major changes between OpenSSL 0.9.7j and OpenSSL 0.9.7k [5 Sep 2006]:
627 o Fix Daniel Bleichenbacher forged signature attack, CVE-2006-4339
629 Major changes between OpenSSL 0.9.7i and OpenSSL 0.9.7j [4 May 2006]:
631 o Visual C++ 2005 fixes.
632 o Update Windows build system for FIPS.
634 Major changes between OpenSSL 0.9.7h and OpenSSL 0.9.7i [14 Oct 2005]:
636 o Give EVP_MAX_MD_SIZE its old value, except for a FIPS build.
638 Major changes between OpenSSL 0.9.7g and OpenSSL 0.9.7h [11 Oct 2005]:
640 o Fix SSL 2.0 Rollback, CVE-2005-2969
641 o Allow use of fixed-length exponent on DSA signing
642 o Default fixed-window RSA, DSA, DH private-key operations
644 Major changes between OpenSSL 0.9.7f and OpenSSL 0.9.7g [11 Apr 2005]:
646 o More compilation issues fixed.
647 o Adaptation to more modern Kerberos API.
648 o Enhanced or corrected configuration for Solaris64, Mingw and Cygwin.
649 o Enhanced x86_64 assembler BIGNUM module.
650 o More constification.
651 o Added processing of proxy certificates (RFC 3820).
653 Major changes between OpenSSL 0.9.7e and OpenSSL 0.9.7f [22 Mar 2005]:
655 o Several compilation issues fixed.
656 o Many memory allocation failure checks added.
657 o Improved comparison of X509 Name type.
658 o Mandatory basic checks on certificates.
659 o Performance improvements.
661 Major changes between OpenSSL 0.9.7d and OpenSSL 0.9.7e [25 Oct 2004]:
663 o Fix race condition in CRL checking code.
664 o Fixes to PKCS#7 (S/MIME) code.
666 Major changes between OpenSSL 0.9.7c and OpenSSL 0.9.7d [17 Mar 2004]:
668 o Security: Fix Kerberos ciphersuite SSL/TLS handshaking bug
669 o Security: Fix null-pointer assignment in do_change_cipher_spec()
670 o Allow multiple active certificates with same subject in CA index
671 o Multiple X509 verification fixes
672 o Speed up HMAC and other operations
674 Major changes between OpenSSL 0.9.7b and OpenSSL 0.9.7c [30 Sep 2003]:
676 o Security: fix various ASN1 parsing bugs.
677 o New -ignore_err option to OCSP utility.
678 o Various interop and bug fixes in S/MIME code.
679 o SSL/TLS protocol fix for unrequested client certificates.
681 Major changes between OpenSSL 0.9.7a and OpenSSL 0.9.7b [10 Apr 2003]:
683 o Security: counter the Klima-Pokorny-Rosa extension of
684 Bleichbacher's attack
685 o Security: make RSA blinding default.
686 o Configuration: Irix fixes, AIX fixes, better mingw support.
687 o Support for new platforms: linux-ia64-ecc.
688 o Build: shared library support fixes.
689 o ASN.1: treat domainComponent correctly.
690 o Documentation: fixes and additions.
692 Major changes between OpenSSL 0.9.7 and OpenSSL 0.9.7a [19 Feb 2003]:
694 o Security: Important security related bugfixes.
695 o Enhanced compatibility with MIT Kerberos.
696 o Can be built without the ENGINE framework.
697 o IA32 assembler enhancements.
698 o Support for new platforms: FreeBSD/IA64 and FreeBSD/Sparc64.
699 o Configuration: the no-err option now works properly.
700 o SSL/TLS: now handles manual certificate chain building.
701 o SSL/TLS: certain session ID malfunctions corrected.
703 Major changes between OpenSSL 0.9.6 and OpenSSL 0.9.7 [30 Dec 2002]:
705 o New library section OCSP.
706 o Complete rewrite of ASN1 code.
707 o CRL checking in verify code and openssl utility.
708 o Extension copying in 'ca' utility.
709 o Flexible display options in 'ca' utility.
710 o Provisional support for international characters with UTF8.
711 o Support for external crypto devices ('engine') is no longer
712 a separate distribution.
713 o New elliptic curve library section.
714 o New AES (Rijndael) library section.
715 o Support for new platforms: Windows CE, Tandem OSS, A/UX, AIX 64-bit,
716 Linux x86_64, Linux 64-bit on Sparc v9
717 o Extended support for some platforms: VxWorks
718 o Enhanced support for shared libraries.
719 o Now only builds PIC code when shared library support is requested.
720 o Support for pkg-config.
721 o Lots of new manuals.
722 o Makes symbolic links to or copies of manuals to cover all described
724 o Change DES API to clean up the namespace (some applications link also
725 against libdes providing similar functions having the same name).
726 Provide macros for backward compatibility (will be removed in the
728 o Unify handling of cryptographic algorithms (software and engine)
729 to be available via EVP routines for asymmetric and symmetric ciphers.
730 o NCONF: new configuration handling routines.
731 o Change API to use more 'const' modifiers to improve error checking
732 and help optimizers.
733 o Finally remove references to RSAref.
734 o Reworked parts of the BIGNUM code.
735 o Support for new engines: Broadcom ubsec, Accelerated Encryption
736 Processing, IBM 4758.
737 o A few new engines added in the demos area.
738 o Extended and corrected OID (object identifier) table.
739 o PRNG: query at more locations for a random device, automatic query for
740 EGD style random sources at several locations.
741 o SSL/TLS: allow optional cipher choice according to server's preference.
742 o SSL/TLS: allow server to explicitly set new session ids.
743 o SSL/TLS: support Kerberos cipher suites (RFC2712).
744 Only supports MIT Kerberos for now.
745 o SSL/TLS: allow more precise control of renegotiations and sessions.
746 o SSL/TLS: add callback to retrieve SSL/TLS messages.
747 o SSL/TLS: support AES cipher suites (RFC3268).
749 Major changes between OpenSSL 0.9.6j and OpenSSL 0.9.6k [30 Sep 2003]:
751 o Security: fix various ASN1 parsing bugs.
752 o SSL/TLS protocol fix for unrequested client certificates.
754 Major changes between OpenSSL 0.9.6i and OpenSSL 0.9.6j [10 Apr 2003]:
756 o Security: counter the Klima-Pokorny-Rosa extension of
757 Bleichbacher's attack
758 o Security: make RSA blinding default.
759 o Build: shared library support fixes.
761 Major changes between OpenSSL 0.9.6h and OpenSSL 0.9.6i [19 Feb 2003]:
763 o Important security related bugfixes.
765 Major changes between OpenSSL 0.9.6g and OpenSSL 0.9.6h [5 Dec 2002]:
767 o New configuration targets for Tandem OSS and A/UX.
768 o New OIDs for Microsoft attributes.
769 o Better handling of SSL session caching.
770 o Better comparison of distinguished names.
771 o Better handling of shared libraries in a mixed GNU/non-GNU environment.
772 o Support assembler code with Borland C.
773 o Fixes for length problems.
774 o Fixes for uninitialised variables.
775 o Fixes for memory leaks, some unusual crashes and some race conditions.
776 o Fixes for smaller building problems.
777 o Updates of manuals, FAQ and other instructive documents.
779 Major changes between OpenSSL 0.9.6f and OpenSSL 0.9.6g [9 Aug 2002]:
781 o Important building fixes on Unix.
783 Major changes between OpenSSL 0.9.6e and OpenSSL 0.9.6f [8 Aug 2002]:
785 o Various important bugfixes.
787 Major changes between OpenSSL 0.9.6d and OpenSSL 0.9.6e [30 Jul 2002]:
789 o Important security related bugfixes.
790 o Various SSL/TLS library bugfixes.
792 Major changes between OpenSSL 0.9.6c and OpenSSL 0.9.6d [9 May 2002]:
794 o Various SSL/TLS library bugfixes.
795 o Fix DH parameter generation for 'non-standard' generators.
797 Major changes between OpenSSL 0.9.6b and OpenSSL 0.9.6c [21 Dec 2001]:
799 o Various SSL/TLS library bugfixes.
800 o BIGNUM library fixes.
801 o RSA OAEP and random number generation fixes.
802 o Object identifiers corrected and added.
803 o Add assembler BN routines for IA64.
804 o Add support for OS/390 Unix, UnixWare with gcc, OpenUNIX 8,
805 MIPS Linux; shared library support for Irix, HP-UX.
806 o Add crypto accelerator support for AEP, Baltimore SureWare,
807 Broadcom and Cryptographic Appliance's keyserver
808 [in 0.9.6c-engine release].
810 Major changes between OpenSSL 0.9.6a and OpenSSL 0.9.6b [9 Jul 2001]:
812 o Security fix: PRNG improvements.
813 o Security fix: RSA OAEP check.
814 o Security fix: Reinsert and fix countermeasure to Bleichbacher's
816 o MIPS bug fix in BIGNUM.
817 o Bug fix in "openssl enc".
818 o Bug fix in X.509 printing routine.
819 o Bug fix in DSA verification routine and DSA S/MIME verification.
820 o Bug fix to make PRNG thread-safe.
821 o Bug fix in RAND_file_name().
822 o Bug fix in compatibility mode trust settings.
823 o Bug fix in blowfish EVP.
824 o Increase default size for BIO buffering filter.
825 o Compatibility fixes in some scripts.
827 Major changes between OpenSSL 0.9.6 and OpenSSL 0.9.6a [5 Apr 2001]:
829 o Security fix: change behavior of OpenSSL to avoid using
830 environment variables when running as root.
831 o Security fix: check the result of RSA-CRT to reduce the
832 possibility of deducing the private key from an incorrectly
833 calculated signature.
834 o Security fix: prevent Bleichenbacher's DSA attack.
835 o Security fix: Zero the premaster secret after deriving the
836 master secret in DH ciphersuites.
837 o Reimplement SSL_peek(), which had various problems.
838 o Compatibility fix: the function des_encrypt() renamed to
839 des_encrypt1() to avoid clashes with some Unixen libc.
840 o Bug fixes for Win32, HP/UX and Irix.
841 o Bug fixes in BIGNUM, SSL, PKCS#7, PKCS#12, X.509, CONF and
842 memory checking routines.
843 o Bug fixes for RSA operations in threaded environments.
844 o Bug fixes in misc. openssl applications.
845 o Remove a few potential memory leaks.
846 o Add tighter checks of BIGNUM routines.
847 o Shared library support has been reworked for generality.
848 o More documentation.
849 o New function BN_rand_range().
850 o Add "-rand" option to openssl s_client and s_server.
852 Major changes between OpenSSL 0.9.5a and OpenSSL 0.9.6 [10 Oct 2000]:
854 o Some documentation for BIO and SSL libraries.
855 o Enhanced chain verification using key identifiers.
856 o New sign and verify options to 'dgst' application.
857 o Support for DER and PEM encoded messages in 'smime' application.
858 o New 'rsautl' application, low level RSA utility.
859 o MD4 now included.
860 o Bugfix for SSL rollback padding check.
861 o Support for external crypto devices .
862 o Enhanced EVP interface.
864  The support for external crypto devices is currently a separate
865 distribution. See the file README.ENGINE.
867 Major changes between OpenSSL 0.9.5 and OpenSSL 0.9.5a [1 Apr 2000]:
869 o Bug fixes for Win32, SuSE Linux, NeXTSTEP and FreeBSD 2.2.8
870 o Shared library support for HPUX and Solaris-gcc
871 o Support of Linux/IA64
872 o Assembler support for Mingw32
873 o New 'rand' application
874 o New way to check for existence of algorithms from scripts
876 Major changes between OpenSSL 0.9.4 and OpenSSL 0.9.5 [25 May 2000]:
878 o S/MIME support in new 'smime' command
879 o Documentation for the OpenSSL command line application
880 o Automation of 'req' application
881 o Fixes to make s_client, s_server work under Windows
882 o Support for multiple fieldnames in SPKACs
883 o New SPKAC command line utility and associated library functions
884 o Options to allow passwords to be obtained from various sources
885 o New public key PEM format and options to handle it
886 o Many other fixes and enhancements to command line utilities
887 o Usable certificate chain verification
888 o Certificate purpose checking
889 o Certificate trust settings
890 o Support of authority information access extension
891 o Extensions in certificate requests
892 o Simplified X509 name and attribute routines
893 o Initial (incomplete) support for international character sets
894 o New DH_METHOD, DSA_METHOD and enhanced RSA_METHOD
895 o Read only memory BIOs and simplified creation function
896 o TLS/SSL protocol bugfixes: Accept TLS 'client hello' in SSL 3.0
897 record; allow fragmentation and interleaving of handshake and other
899 o TLS/SSL code now "tolerates" MS SGC
900 o Work around for Netscape client certificate hang bug
901 o RSA_NULL option that removes RSA patent code but keeps other
902 RSA functionality
903 o Memory leak detection now allows applications to add extra information
904 via a per-thread stack
905 o PRNG robustness improved
906 o EGD support
907 o BIGNUM library bug fixes
908 o Faster DSA parameter generation
909 o Enhanced support for Alpha Linux
910 o Experimental MacOS support
912 Major changes between OpenSSL 0.9.3 and OpenSSL 0.9.4 [9 Aug 1999]:
914 o Transparent support for PKCS#8 format private keys: these are used
915 by several software packages and are more secure than the standard
917 o PKCS#5 v2.0 implementation
918 o Password callbacks have a new void * argument for application data
919 o Avoid various memory leaks
920 o New pipe-like BIO that allows using the SSL library when actual I/O
921 must be handled by the application (BIO pair)
923 Major changes between OpenSSL 0.9.2b and OpenSSL 0.9.3 [24 May 1999]:
924 o Lots of enhancements and cleanups to the Configuration mechanism
925 o RSA OEAP related fixes
926 o Added `openssl ca -revoke' option for revoking a certificate
927 o Source cleanups: const correctness, type-safe stacks and ASN.1 SETs
928 o Source tree cleanups: removed lots of obsolete files
929 o Thawte SXNet, certificate policies and CRL distribution points
930 extension support
931 o Preliminary (experimental) S/MIME support
932 o Support for ASN.1 UTF8String and VisibleString
933 o Full integration of PKCS#12 code
934 o Sparc assembler bignum implementation, optimized hash functions
935 o Option to disable selected ciphers
937 Major changes between OpenSSL 0.9.1c and OpenSSL 0.9.2b [22 Mar 1999]:
938 o Fixed a security hole related to session resumption
939 o Fixed RSA encryption routines for the p < q case
940 o "ALL" in cipher lists now means "everything except NULL ciphers"
941 o Support for Triple-DES CBCM cipher
942 o Support of Optimal Asymmetric Encryption Padding (OAEP) for RSA
943 o First support for new TLSv1 ciphers
944 o Added a few new BIOs (syslog BIO, reliable BIO)
945 o Extended support for DSA certificate/keys.
946 o Extended support for Certificate Signing Requests (CSR)
947 o Initial support for X.509v3 extensions
948 o Extended support for compression inside the SSL record layer
949 o Overhauled Win32 builds
950 o Cleanups and fixes to the Big Number (BN) library
951 o Support for ASN.1 GeneralizedTime
952 o Splitted ASN.1 SETs from SEQUENCEs
953 o ASN1 and PEM support for Netscape Certificate Sequences
954 o Overhauled Perl interface
955 o Lots of source tree cleanups.
956 o Lots of memory leak fixes.
957 o Lots of bug fixes.
959 Major changes between SSLeay 0.9.0b and OpenSSL 0.9.1c [23 Dec 1998]:
960 o Integration of the popular NO_RSA/NO_DSA patches
961 o Initial support for compression inside the SSL record layer
962 o Added BIO proxy and filtering functionality
963 o Extended Big Number (BN) library
964 o Added RIPE MD160 message digest
965 o Added support for RC2/64bit cipher
966 o Extended ASN.1 parser routines
967 o Adjustments of the source tree for CVS
968 o Support for various new platforms