NEWS revision 167612
1 2 NEWS 3 ==== 4 5 This file gives a brief overview of the major changes between each OpenSSL 6 release. For more details please read the CHANGES file. 7 8 Major changes between OpenSSL 0.9.8d and OpenSSL 0.9.8e: 9 10 o Various ciphersuite selection fixes. 11 o RFC3779 support. 12 13 Major changes between OpenSSL 0.9.8c and OpenSSL 0.9.8d: 14 15 o Introduce limits to prevent malicious key DoS (CVE-2006-2940) 16 o Fix security issues (CVE-2006-2937, CVE-2006-3737, CVE-2006-4343) 17 o Changes to ciphersuite selection algorithm 18 19 Major changes between OpenSSL 0.9.8b and OpenSSL 0.9.8c: 20 21 o Fix Daniel Bleichenbacher forged signature attack, CVE-2006-4339 22 o New cipher Camellia 23 24 Major changes between OpenSSL 0.9.8a and OpenSSL 0.9.8b: 25 26 o Cipher string fixes. 27 o Fixes for VC++ 2005. 28 o Updated ECC cipher suite support. 29 o New functions EVP_CIPHER_CTX_new() and EVP_CIPHER_CTX_free(). 30 o Zlib compression usage fixes. 31 o Built in dynamic engine compilation support on Win32. 32 o Fixes auto dynamic engine loading in Win32. 33 34 Major changes between OpenSSL 0.9.8 and OpenSSL 0.9.8a: 35 36 o Fix potential SSL 2.0 rollback, CVE-2005-2969 37 o Extended Windows CE support 38 39 Major changes between OpenSSL 0.9.7g and OpenSSL 0.9.8: 40 41 o Major work on the BIGNUM library for higher efficiency and to 42 make operations more streamlined and less contradictory. This 43 is the result of a major audit of the BIGNUM library. 44 o Addition of BIGNUM functions for fields GF(2^m) and NIST 45 curves, to support the Elliptic Crypto functions. 46 o Major work on Elliptic Crypto; ECDH and ECDSA added, including 47 the use through EVP, X509 and ENGINE. 48 o New ASN.1 mini-compiler that's usable through the OpenSSL 49 configuration file. 50 o Added support for ASN.1 indefinite length constructed encoding. 51 o New PKCS#12 'medium level' API to manipulate PKCS#12 files. 52 o Complete rework of shared library construction and linking 53 programs with shared or static libraries, through a separate 54 Makefile.shared. 55 o Rework of the passing of parameters from one Makefile to another. 56 o Changed ENGINE framework to load dynamic engine modules 57 automatically from specifically given directories. 58 o New structure and ASN.1 functions for CertificatePair. 59 o Changed the ZLIB compression method to be stateful. 60 o Changed the key-generation and primality testing "progress" 61 mechanism to take a structure that contains the ticker 62 function and an argument. 63 o New engine module: GMP (performs private key exponentiation). 64 o New engine module: VIA PadLOck ACE extension in VIA C3 65 Nehemiah processors. 66 o Added support for IPv6 addresses in certificate extensions. 67 See RFC 1884, section 2.2. 68 o Added support for certificate policy mappings, policy 69 constraints and name constraints. 70 o Added support for multi-valued AVAs in the OpenSSL 71 configuration file. 72 o Added support for multiple certificates with the same subject 73 in the 'openssl ca' index file. 74 o Make it possible to create self-signed certificates using 75 'openssl ca -selfsign'. 76 o Make it possible to generate a serial number file with 77 'openssl ca -create_serial'. 78 o New binary search functions with extended functionality. 79 o New BUF functions. 80 o New STORE structure and library to provide an interface to all 81 sorts of data repositories. Supports storage of public and 82 private keys, certificates, CRLs, numbers and arbitrary blobs. 83 This library is unfortunately unfinished and unused withing 84 OpenSSL. 85 o New control functions for the error stack. 86 o Changed the PKCS#7 library to support one-pass S/MIME 87 processing. 88 o Added the possibility to compile without old deprecated 89 functionality with the OPENSSL_NO_DEPRECATED macro or the 90 'no-deprecated' argument to the config and Configure scripts. 91 o Constification of all ASN.1 conversion functions, and other 92 affected functions. 93 o Improved platform support for PowerPC. 94 o New FIPS 180-2 algorithms (SHA-224, -256, -384 and -512). 95 o New X509_VERIFY_PARAM structure to support parametrisation 96 of X.509 path validation. 97 o Major overhaul of RC4 performance on Intel P4, IA-64 and 98 AMD64. 99 o Changed the Configure script to have some algorithms disabled 100 by default. Those can be explicitely enabled with the new 101 argument form 'enable-xxx'. 102 o Change the default digest in 'openssl' commands from MD5 to 103 SHA-1. 104 o Added support for DTLS. 105 o New BIGNUM blinding. 106 o Added support for the RSA-PSS encryption scheme 107 o Added support for the RSA X.931 padding. 108 o Added support for BSD sockets on NetWare. 109 o Added support for files larger than 2GB. 110 o Added initial support for Win64. 111 o Added alternate pkg-config files. 112 113 Major changes between OpenSSL 0.9.7k and OpenSSL 0.9.7l: 114 115 o Introduce limits to prevent malicious key DoS (CVE-2006-2940) 116 o Fix security issues (CVE-2006-2937, CVE-2006-3737, CVE-2006-4343) 117 118 Major changes between OpenSSL 0.9.7j and OpenSSL 0.9.7k: 119 120 o Fix Daniel Bleichenbacher forged signature attack, CVE-2006-4339 121 122 Major changes between OpenSSL 0.9.7i and OpenSSL 0.9.7j: 123 124 o Visual C++ 2005 fixes. 125 o Update Windows build system for FIPS. 126 127 Major changes between OpenSSL 0.9.7h and OpenSSL 0.9.7i: 128 129 o Give EVP_MAX_MD_SIZE it's old value, except for a FIPS build. 130 131 Major changes between OpenSSL 0.9.7g and OpenSSL 0.9.7h: 132 133 o Fix SSL 2.0 Rollback, CVE-2005-2969 134 o Allow use of fixed-length exponent on DSA signing 135 o Default fixed-window RSA, DSA, DH private-key operations 136 137 Major changes between OpenSSL 0.9.7f and OpenSSL 0.9.7g: 138 139 o More compilation issues fixed. 140 o Adaptation to more modern Kerberos API. 141 o Enhanced or corrected configuration for Solaris64, Mingw and Cygwin. 142 o Enhanced x86_64 assembler BIGNUM module. 143 o More constification. 144 o Added processing of proxy certificates (RFC 3820). 145 146 Major changes between OpenSSL 0.9.7e and OpenSSL 0.9.7f: 147 148 o Several compilation issues fixed. 149 o Many memory allocation failure checks added. 150 o Improved comparison of X509 Name type. 151 o Mandatory basic checks on certificates. 152 o Performance improvements. 153 154 Major changes between OpenSSL 0.9.7d and OpenSSL 0.9.7e: 155 156 o Fix race condition in CRL checking code. 157 o Fixes to PKCS#7 (S/MIME) code. 158 159 Major changes between OpenSSL 0.9.7c and OpenSSL 0.9.7d: 160 161 o Security: Fix Kerberos ciphersuite SSL/TLS handshaking bug 162 o Security: Fix null-pointer assignment in do_change_cipher_spec() 163 o Allow multiple active certificates with same subject in CA index 164 o Multiple X509 verification fixes 165 o Speed up HMAC and other operations 166 167 Major changes between OpenSSL 0.9.7b and OpenSSL 0.9.7c: 168 169 o Security: fix various ASN1 parsing bugs. 170 o New -ignore_err option to OCSP utility. 171 o Various interop and bug fixes in S/MIME code. 172 o SSL/TLS protocol fix for unrequested client certificates. 173 174 Major changes between OpenSSL 0.9.7a and OpenSSL 0.9.7b: 175 176 o Security: counter the Klima-Pokorny-Rosa extension of 177 Bleichbacher's attack 178 o Security: make RSA blinding default. 179 o Configuration: Irix fixes, AIX fixes, better mingw support. 180 o Support for new platforms: linux-ia64-ecc. 181 o Build: shared library support fixes. 182 o ASN.1: treat domainComponent correctly. 183 o Documentation: fixes and additions. 184 185 Major changes between OpenSSL 0.9.7 and OpenSSL 0.9.7a: 186 187 o Security: Important security related bugfixes. 188 o Enhanced compatibility with MIT Kerberos. 189 o Can be built without the ENGINE framework. 190 o IA32 assembler enhancements. 191 o Support for new platforms: FreeBSD/IA64 and FreeBSD/Sparc64. 192 o Configuration: the no-err option now works properly. 193 o SSL/TLS: now handles manual certificate chain building. 194 o SSL/TLS: certain session ID malfunctions corrected. 195 196 Major changes between OpenSSL 0.9.6 and OpenSSL 0.9.7: 197 198 o New library section OCSP. 199 o Complete rewrite of ASN1 code. 200 o CRL checking in verify code and openssl utility. 201 o Extension copying in 'ca' utility. 202 o Flexible display options in 'ca' utility. 203 o Provisional support for international characters with UTF8. 204 o Support for external crypto devices ('engine') is no longer 205 a separate distribution. 206 o New elliptic curve library section. 207 o New AES (Rijndael) library section. 208 o Support for new platforms: Windows CE, Tandem OSS, A/UX, AIX 64-bit, 209 Linux x86_64, Linux 64-bit on Sparc v9 210 o Extended support for some platforms: VxWorks 211 o Enhanced support for shared libraries. 212 o Now only builds PIC code when shared library support is requested. 213 o Support for pkg-config. 214 o Lots of new manuals. 215 o Makes symbolic links to or copies of manuals to cover all described 216 functions. 217 o Change DES API to clean up the namespace (some applications link also 218 against libdes providing similar functions having the same name). 219 Provide macros for backward compatibility (will be removed in the 220 future). 221 o Unify handling of cryptographic algorithms (software and engine) 222 to be available via EVP routines for asymmetric and symmetric ciphers. 223 o NCONF: new configuration handling routines. 224 o Change API to use more 'const' modifiers to improve error checking 225 and help optimizers. 226 o Finally remove references to RSAref. 227 o Reworked parts of the BIGNUM code. 228 o Support for new engines: Broadcom ubsec, Accelerated Encryption 229 Processing, IBM 4758. 230 o A few new engines added in the demos area. 231 o Extended and corrected OID (object identifier) table. 232 o PRNG: query at more locations for a random device, automatic query for 233 EGD style random sources at several locations. 234 o SSL/TLS: allow optional cipher choice according to server's preference. 235 o SSL/TLS: allow server to explicitly set new session ids. 236 o SSL/TLS: support Kerberos cipher suites (RFC2712). 237 Only supports MIT Kerberos for now. 238 o SSL/TLS: allow more precise control of renegotiations and sessions. 239 o SSL/TLS: add callback to retrieve SSL/TLS messages. 240 o SSL/TLS: support AES cipher suites (RFC3268). 241 242 Major changes between OpenSSL 0.9.6j and OpenSSL 0.9.6k: 243 244 o Security: fix various ASN1 parsing bugs. 245 o SSL/TLS protocol fix for unrequested client certificates. 246 247 Major changes between OpenSSL 0.9.6i and OpenSSL 0.9.6j: 248 249 o Security: counter the Klima-Pokorny-Rosa extension of 250 Bleichbacher's attack 251 o Security: make RSA blinding default. 252 o Build: shared library support fixes. 253 254 Major changes between OpenSSL 0.9.6h and OpenSSL 0.9.6i: 255 256 o Important security related bugfixes. 257 258 Major changes between OpenSSL 0.9.6g and OpenSSL 0.9.6h: 259 260 o New configuration targets for Tandem OSS and A/UX. 261 o New OIDs for Microsoft attributes. 262 o Better handling of SSL session caching. 263 o Better comparison of distinguished names. 264 o Better handling of shared libraries in a mixed GNU/non-GNU environment. 265 o Support assembler code with Borland C. 266 o Fixes for length problems. 267 o Fixes for uninitialised variables. 268 o Fixes for memory leaks, some unusual crashes and some race conditions. 269 o Fixes for smaller building problems. 270 o Updates of manuals, FAQ and other instructive documents. 271 272 Major changes between OpenSSL 0.9.6f and OpenSSL 0.9.6g: 273 274 o Important building fixes on Unix. 275 276 Major changes between OpenSSL 0.9.6e and OpenSSL 0.9.6f: 277 278 o Various important bugfixes. 279 280 Major changes between OpenSSL 0.9.6d and OpenSSL 0.9.6e: 281 282 o Important security related bugfixes. 283 o Various SSL/TLS library bugfixes. 284 285 Major changes between OpenSSL 0.9.6c and OpenSSL 0.9.6d: 286 287 o Various SSL/TLS library bugfixes. 288 o Fix DH parameter generation for 'non-standard' generators. 289 290 Major changes between OpenSSL 0.9.6b and OpenSSL 0.9.6c: 291 292 o Various SSL/TLS library bugfixes. 293 o BIGNUM library fixes. 294 o RSA OAEP and random number generation fixes. 295 o Object identifiers corrected and added. 296 o Add assembler BN routines for IA64. 297 o Add support for OS/390 Unix, UnixWare with gcc, OpenUNIX 8, 298 MIPS Linux; shared library support for Irix, HP-UX. 299 o Add crypto accelerator support for AEP, Baltimore SureWare, 300 Broadcom and Cryptographic Appliance's keyserver 301 [in 0.9.6c-engine release]. 302 303 Major changes between OpenSSL 0.9.6a and OpenSSL 0.9.6b: 304 305 o Security fix: PRNG improvements. 306 o Security fix: RSA OAEP check. 307 o Security fix: Reinsert and fix countermeasure to Bleichbacher's 308 attack. 309 o MIPS bug fix in BIGNUM. 310 o Bug fix in "openssl enc". 311 o Bug fix in X.509 printing routine. 312 o Bug fix in DSA verification routine and DSA S/MIME verification. 313 o Bug fix to make PRNG thread-safe. 314 o Bug fix in RAND_file_name(). 315 o Bug fix in compatibility mode trust settings. 316 o Bug fix in blowfish EVP. 317 o Increase default size for BIO buffering filter. 318 o Compatibility fixes in some scripts. 319 320 Major changes between OpenSSL 0.9.6 and OpenSSL 0.9.6a: 321 322 o Security fix: change behavior of OpenSSL to avoid using 323 environment variables when running as root. 324 o Security fix: check the result of RSA-CRT to reduce the 325 possibility of deducing the private key from an incorrectly 326 calculated signature. 327 o Security fix: prevent Bleichenbacher's DSA attack. 328 o Security fix: Zero the premaster secret after deriving the 329 master secret in DH ciphersuites. 330 o Reimplement SSL_peek(), which had various problems. 331 o Compatibility fix: the function des_encrypt() renamed to 332 des_encrypt1() to avoid clashes with some Unixen libc. 333 o Bug fixes for Win32, HP/UX and Irix. 334 o Bug fixes in BIGNUM, SSL, PKCS#7, PKCS#12, X.509, CONF and 335 memory checking routines. 336 o Bug fixes for RSA operations in threaded environments. 337 o Bug fixes in misc. openssl applications. 338 o Remove a few potential memory leaks. 339 o Add tighter checks of BIGNUM routines. 340 o Shared library support has been reworked for generality. 341 o More documentation. 342 o New function BN_rand_range(). 343 o Add "-rand" option to openssl s_client and s_server. 344 345 Major changes between OpenSSL 0.9.5a and OpenSSL 0.9.6: 346 347 o Some documentation for BIO and SSL libraries. 348 o Enhanced chain verification using key identifiers. 349 o New sign and verify options to 'dgst' application. 350 o Support for DER and PEM encoded messages in 'smime' application. 351 o New 'rsautl' application, low level RSA utility. 352 o MD4 now included. 353 o Bugfix for SSL rollback padding check. 354 o Support for external crypto devices [1]. 355 o Enhanced EVP interface. 356 357 [1] The support for external crypto devices is currently a separate 358 distribution. See the file README.ENGINE. 359 360 Major changes between OpenSSL 0.9.5 and OpenSSL 0.9.5a: 361 362 o Bug fixes for Win32, SuSE Linux, NeXTSTEP and FreeBSD 2.2.8 363 o Shared library support for HPUX and Solaris-gcc 364 o Support of Linux/IA64 365 o Assembler support for Mingw32 366 o New 'rand' application 367 o New way to check for existence of algorithms from scripts 368 369 Major changes between OpenSSL 0.9.4 and OpenSSL 0.9.5: 370 371 o S/MIME support in new 'smime' command 372 o Documentation for the OpenSSL command line application 373 o Automation of 'req' application 374 o Fixes to make s_client, s_server work under Windows 375 o Support for multiple fieldnames in SPKACs 376 o New SPKAC command line utilty and associated library functions 377 o Options to allow passwords to be obtained from various sources 378 o New public key PEM format and options to handle it 379 o Many other fixes and enhancements to command line utilities 380 o Usable certificate chain verification 381 o Certificate purpose checking 382 o Certificate trust settings 383 o Support of authority information access extension 384 o Extensions in certificate requests 385 o Simplified X509 name and attribute routines 386 o Initial (incomplete) support for international character sets 387 o New DH_METHOD, DSA_METHOD and enhanced RSA_METHOD 388 o Read only memory BIOs and simplified creation function 389 o TLS/SSL protocol bugfixes: Accept TLS 'client hello' in SSL 3.0 390 record; allow fragmentation and interleaving of handshake and other 391 data 392 o TLS/SSL code now "tolerates" MS SGC 393 o Work around for Netscape client certificate hang bug 394 o RSA_NULL option that removes RSA patent code but keeps other 395 RSA functionality 396 o Memory leak detection now allows applications to add extra information 397 via a per-thread stack 398 o PRNG robustness improved 399 o EGD support 400 o BIGNUM library bug fixes 401 o Faster DSA parameter generation 402 o Enhanced support for Alpha Linux 403 o Experimental MacOS support 404 405 Major changes between OpenSSL 0.9.3 and OpenSSL 0.9.4: 406 407 o Transparent support for PKCS#8 format private keys: these are used 408 by several software packages and are more secure than the standard 409 form 410 o PKCS#5 v2.0 implementation 411 o Password callbacks have a new void * argument for application data 412 o Avoid various memory leaks 413 o New pipe-like BIO that allows using the SSL library when actual I/O 414 must be handled by the application (BIO pair) 415 416 Major changes between OpenSSL 0.9.2b and OpenSSL 0.9.3: 417 o Lots of enhancements and cleanups to the Configuration mechanism 418 o RSA OEAP related fixes 419 o Added `openssl ca -revoke' option for revoking a certificate 420 o Source cleanups: const correctness, type-safe stacks and ASN.1 SETs 421 o Source tree cleanups: removed lots of obsolete files 422 o Thawte SXNet, certificate policies and CRL distribution points 423 extension support 424 o Preliminary (experimental) S/MIME support 425 o Support for ASN.1 UTF8String and VisibleString 426 o Full integration of PKCS#12 code 427 o Sparc assembler bignum implementation, optimized hash functions 428 o Option to disable selected ciphers 429 430 Major changes between OpenSSL 0.9.1c and OpenSSL 0.9.2b: 431 o Fixed a security hole related to session resumption 432 o Fixed RSA encryption routines for the p < q case 433 o "ALL" in cipher lists now means "everything except NULL ciphers" 434 o Support for Triple-DES CBCM cipher 435 o Support of Optimal Asymmetric Encryption Padding (OAEP) for RSA 436 o First support for new TLSv1 ciphers 437 o Added a few new BIOs (syslog BIO, reliable BIO) 438 o Extended support for DSA certificate/keys. 439 o Extended support for Certificate Signing Requests (CSR) 440 o Initial support for X.509v3 extensions 441 o Extended support for compression inside the SSL record layer 442 o Overhauled Win32 builds 443 o Cleanups and fixes to the Big Number (BN) library 444 o Support for ASN.1 GeneralizedTime 445 o Splitted ASN.1 SETs from SEQUENCEs 446 o ASN1 and PEM support for Netscape Certificate Sequences 447 o Overhauled Perl interface 448 o Lots of source tree cleanups. 449 o Lots of memory leak fixes. 450 o Lots of bug fixes. 451 452 Major changes between SSLeay 0.9.0b and OpenSSL 0.9.1c: 453 o Integration of the popular NO_RSA/NO_DSA patches 454 o Initial support for compression inside the SSL record layer 455 o Added BIO proxy and filtering functionality 456 o Extended Big Number (BN) library 457 o Added RIPE MD160 message digest 458 o Addeed support for RC2/64bit cipher 459 o Extended ASN.1 parser routines 460 o Adjustations of the source tree for CVS 461 o Support for various new platforms 462 463