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 0.9.7e and OpenSSL 0.9.7f: 9 10 o Several compilation issues fixed. 11 o Many memory allocation failure checks added. 12 o Improved comparison of X509 Name type. 13 o Mandatory basic checks on certificates. 14 o Performance improvements. 15 16 Major changes between OpenSSL 0.9.7d and OpenSSL 0.9.7e: 17 18 o Fix race condition in CRL checking code. 19 o Fixes to PKCS#7 (S/MIME) code. 20 21 Major changes between OpenSSL 0.9.7c and OpenSSL 0.9.7d: 22 23 o Security: Fix Kerberos ciphersuite SSL/TLS handshaking bug 24 o Security: Fix null-pointer assignment in do_change_cipher_spec() 25 o Allow multiple active certificates with same subject in CA index 26 o Multiple X509 verification fixes 27 o Speed up HMAC and other operations 28 29 Major changes between OpenSSL 0.9.7b and OpenSSL 0.9.7c: 30 31 o Security: fix various ASN1 parsing bugs. 32 o New -ignore_err option to OCSP utility. 33 o Various interop and bug fixes in S/MIME code. 34 o SSL/TLS protocol fix for unrequested client certificates. 35 36 Major changes between OpenSSL 0.9.7a and OpenSSL 0.9.7b: 37 38 o Security: counter the Klima-Pokorny-Rosa extension of 39 Bleichbacher's attack 40 o Security: make RSA blinding default. 41 o Configuration: Irix fixes, AIX fixes, better mingw support. 42 o Support for new platforms: linux-ia64-ecc. 43 o Build: shared library support fixes. 44 o ASN.1: treat domainComponent correctly. 45 o Documentation: fixes and additions. 46 47 Major changes between OpenSSL 0.9.7 and OpenSSL 0.9.7a: 48 49 o Security: Important security related bugfixes. 50 o Enhanced compatibility with MIT Kerberos. 51 o Can be built without the ENGINE framework. 52 o IA32 assembler enhancements. 53 o Support for new platforms: FreeBSD/IA64 and FreeBSD/Sparc64. 54 o Configuration: the no-err option now works properly. 55 o SSL/TLS: now handles manual certificate chain building. 56 o SSL/TLS: certain session ID malfunctions corrected. 57 58 Major changes between OpenSSL 0.9.6 and OpenSSL 0.9.7: 59 60 o New library section OCSP. 61 o Complete rewrite of ASN1 code. 62 o CRL checking in verify code and openssl utility. 63 o Extension copying in 'ca' utility. 64 o Flexible display options in 'ca' utility. 65 o Provisional support for international characters with UTF8. 66 o Support for external crypto devices ('engine') is no longer 67 a separate distribution. 68 o New elliptic curve library section. 69 o New AES (Rijndael) library section. 70 o Support for new platforms: Windows CE, Tandem OSS, A/UX, AIX 64-bit, 71 Linux x86_64, Linux 64-bit on Sparc v9 72 o Extended support for some platforms: VxWorks 73 o Enhanced support for shared libraries. 74 o Now only builds PIC code when shared library support is requested. 75 o Support for pkg-config. 76 o Lots of new manuals. 77 o Makes symbolic links to or copies of manuals to cover all described 78 functions. 79 o Change DES API to clean up the namespace (some applications link also 80 against libdes providing similar functions having the same name). 81 Provide macros for backward compatibility (will be removed in the 82 future). 83 o Unify handling of cryptographic algorithms (software and engine) 84 to be available via EVP routines for asymmetric and symmetric ciphers. 85 o NCONF: new configuration handling routines. 86 o Change API to use more 'const' modifiers to improve error checking 87 and help optimizers. 88 o Finally remove references to RSAref. 89 o Reworked parts of the BIGNUM code. 90 o Support for new engines: Broadcom ubsec, Accelerated Encryption 91 Processing, IBM 4758. 92 o A few new engines added in the demos area. 93 o Extended and corrected OID (object identifier) table. 94 o PRNG: query at more locations for a random device, automatic query for 95 EGD style random sources at several locations. 96 o SSL/TLS: allow optional cipher choice according to server's preference. 97 o SSL/TLS: allow server to explicitly set new session ids. 98 o SSL/TLS: support Kerberos cipher suites (RFC2712). 99 Only supports MIT Kerberos for now. 100 o SSL/TLS: allow more precise control of renegotiations and sessions. 101 o SSL/TLS: add callback to retrieve SSL/TLS messages. 102 o SSL/TLS: support AES cipher suites (RFC3268). 103 104 Major changes between OpenSSL 0.9.6j and OpenSSL 0.9.6k: 105 106 o Security: fix various ASN1 parsing bugs. 107 o SSL/TLS protocol fix for unrequested client certificates. 108 109 Major changes between OpenSSL 0.9.6i and OpenSSL 0.9.6j: 110 111 o Security: counter the Klima-Pokorny-Rosa extension of 112 Bleichbacher's attack 113 o Security: make RSA blinding default. 114 o Build: shared library support fixes. 115 116 Major changes between OpenSSL 0.9.6h and OpenSSL 0.9.6i: 117 118 o Important security related bugfixes. 119 120 Major changes between OpenSSL 0.9.6g and OpenSSL 0.9.6h: 121 122 o New configuration targets for Tandem OSS and A/UX. 123 o New OIDs for Microsoft attributes. 124 o Better handling of SSL session caching. 125 o Better comparison of distinguished names. 126 o Better handling of shared libraries in a mixed GNU/non-GNU environment. 127 o Support assembler code with Borland C. 128 o Fixes for length problems. 129 o Fixes for uninitialised variables. 130 o Fixes for memory leaks, some unusual crashes and some race conditions. 131 o Fixes for smaller building problems. 132 o Updates of manuals, FAQ and other instructive documents. 133 134 Major changes between OpenSSL 0.9.6f and OpenSSL 0.9.6g: 135 136 o Important building fixes on Unix. 137 138 Major changes between OpenSSL 0.9.6e and OpenSSL 0.9.6f: 139 140 o Various important bugfixes. 141 142 Major changes between OpenSSL 0.9.6d and OpenSSL 0.9.6e: 143 144 o Important security related bugfixes. 145 o Various SSL/TLS library bugfixes. 146 147 Major changes between OpenSSL 0.9.6c and OpenSSL 0.9.6d: 148 149 o Various SSL/TLS library bugfixes. 150 o Fix DH parameter generation for 'non-standard' generators. 151 152 Major changes between OpenSSL 0.9.6b and OpenSSL 0.9.6c: 153 154 o Various SSL/TLS library bugfixes. 155 o BIGNUM library fixes. 156 o RSA OAEP and random number generation fixes. 157 o Object identifiers corrected and added. 158 o Add assembler BN routines for IA64. 159 o Add support for OS/390 Unix, UnixWare with gcc, OpenUNIX 8, 160 MIPS Linux; shared library support for Irix, HP-UX. 161 o Add crypto accelerator support for AEP, Baltimore SureWare, 162 Broadcom and Cryptographic Appliance's keyserver 163 [in 0.9.6c-engine release]. 164 165 Major changes between OpenSSL 0.9.6a and OpenSSL 0.9.6b: 166 167 o Security fix: PRNG improvements. 168 o Security fix: RSA OAEP check. 169 o Security fix: Reinsert and fix countermeasure to Bleichbacher's 170 attack. 171 o MIPS bug fix in BIGNUM. 172 o Bug fix in "openssl enc". 173 o Bug fix in X.509 printing routine. 174 o Bug fix in DSA verification routine and DSA S/MIME verification. 175 o Bug fix to make PRNG thread-safe. 176 o Bug fix in RAND_file_name(). 177 o Bug fix in compatibility mode trust settings. 178 o Bug fix in blowfish EVP. 179 o Increase default size for BIO buffering filter. 180 o Compatibility fixes in some scripts. 181 182 Major changes between OpenSSL 0.9.6 and OpenSSL 0.9.6a: 183 184 o Security fix: change behavior of OpenSSL to avoid using 185 environment variables when running as root. 186 o Security fix: check the result of RSA-CRT to reduce the 187 possibility of deducing the private key from an incorrectly 188 calculated signature. 189 o Security fix: prevent Bleichenbacher's DSA attack. 190 o Security fix: Zero the premaster secret after deriving the 191 master secret in DH ciphersuites. 192 o Reimplement SSL_peek(), which had various problems. 193 o Compatibility fix: the function des_encrypt() renamed to 194 des_encrypt1() to avoid clashes with some Unixen libc. 195 o Bug fixes for Win32, HP/UX and Irix. 196 o Bug fixes in BIGNUM, SSL, PKCS#7, PKCS#12, X.509, CONF and 197 memory checking routines. 198 o Bug fixes for RSA operations in threaded environments. 199 o Bug fixes in misc. openssl applications. 200 o Remove a few potential memory leaks. 201 o Add tighter checks of BIGNUM routines. 202 o Shared library support has been reworked for generality. 203 o More documentation. 204 o New function BN_rand_range(). 205 o Add "-rand" option to openssl s_client and s_server. 206 207 Major changes between OpenSSL 0.9.5a and OpenSSL 0.9.6: 208 209 o Some documentation for BIO and SSL libraries. 210 o Enhanced chain verification using key identifiers. 211 o New sign and verify options to 'dgst' application. 212 o Support for DER and PEM encoded messages in 'smime' application. 213 o New 'rsautl' application, low level RSA utility. 214 o MD4 now included. 215 o Bugfix for SSL rollback padding check. 216 o Support for external crypto devices [1]. 217 o Enhanced EVP interface. 218 219 [1] The support for external crypto devices is currently a separate 220 distribution. See the file README.ENGINE. 221 222 Major changes between OpenSSL 0.9.5 and OpenSSL 0.9.5a: 223 224 o Bug fixes for Win32, SuSE Linux, NeXTSTEP and FreeBSD 2.2.8 225 o Shared library support for HPUX and Solaris-gcc 226 o Support of Linux/IA64 227 o Assembler support for Mingw32 228 o New 'rand' application 229 o New way to check for existence of algorithms from scripts 230 231 Major changes between OpenSSL 0.9.4 and OpenSSL 0.9.5: 232 233 o S/MIME support in new 'smime' command 234 o Documentation for the OpenSSL command line application 235 o Automation of 'req' application 236 o Fixes to make s_client, s_server work under Windows 237 o Support for multiple fieldnames in SPKACs 238 o New SPKAC command line utilty and associated library functions 239 o Options to allow passwords to be obtained from various sources 240 o New public key PEM format and options to handle it 241 o Many other fixes and enhancements to command line utilities 242 o Usable certificate chain verification 243 o Certificate purpose checking 244 o Certificate trust settings 245 o Support of authority information access extension 246 o Extensions in certificate requests 247 o Simplified X509 name and attribute routines 248 o Initial (incomplete) support for international character sets 249 o New DH_METHOD, DSA_METHOD and enhanced RSA_METHOD 250 o Read only memory BIOs and simplified creation function 251 o TLS/SSL protocol bugfixes: Accept TLS 'client hello' in SSL 3.0 252 record; allow fragmentation and interleaving of handshake and other 253 data 254 o TLS/SSL code now "tolerates" MS SGC 255 o Work around for Netscape client certificate hang bug 256 o RSA_NULL option that removes RSA patent code but keeps other 257 RSA functionality 258 o Memory leak detection now allows applications to add extra information 259 via a per-thread stack 260 o PRNG robustness improved 261 o EGD support 262 o BIGNUM library bug fixes 263 o Faster DSA parameter generation 264 o Enhanced support for Alpha Linux 265 o Experimental MacOS support 266 267 Major changes between OpenSSL 0.9.3 and OpenSSL 0.9.4: 268 269 o Transparent support for PKCS#8 format private keys: these are used 270 by several software packages and are more secure than the standard 271 form 272 o PKCS#5 v2.0 implementation 273 o Password callbacks have a new void * argument for application data 274 o Avoid various memory leaks 275 o New pipe-like BIO that allows using the SSL library when actual I/O 276 must be handled by the application (BIO pair) 277 278 Major changes between OpenSSL 0.9.2b and OpenSSL 0.9.3: 279 o Lots of enhancements and cleanups to the Configuration mechanism 280 o RSA OEAP related fixes 281 o Added `openssl ca -revoke' option for revoking a certificate 282 o Source cleanups: const correctness, type-safe stacks and ASN.1 SETs 283 o Source tree cleanups: removed lots of obsolete files 284 o Thawte SXNet, certificate policies and CRL distribution points 285 extension support 286 o Preliminary (experimental) S/MIME support 287 o Support for ASN.1 UTF8String and VisibleString 288 o Full integration of PKCS#12 code 289 o Sparc assembler bignum implementation, optimized hash functions 290 o Option to disable selected ciphers 291 292 Major changes between OpenSSL 0.9.1c and OpenSSL 0.9.2b: 293 o Fixed a security hole related to session resumption 294 o Fixed RSA encryption routines for the p < q case 295 o "ALL" in cipher lists now means "everything except NULL ciphers" 296 o Support for Triple-DES CBCM cipher 297 o Support of Optimal Asymmetric Encryption Padding (OAEP) for RSA 298 o First support for new TLSv1 ciphers 299 o Added a few new BIOs (syslog BIO, reliable BIO) 300 o Extended support for DSA certificate/keys. 301 o Extended support for Certificate Signing Requests (CSR) 302 o Initial support for X.509v3 extensions 303 o Extended support for compression inside the SSL record layer 304 o Overhauled Win32 builds 305 o Cleanups and fixes to the Big Number (BN) library 306 o Support for ASN.1 GeneralizedTime 307 o Splitted ASN.1 SETs from SEQUENCEs 308 o ASN1 and PEM support for Netscape Certificate Sequences 309 o Overhauled Perl interface 310 o Lots of source tree cleanups. 311 o Lots of memory leak fixes. 312 o Lots of bug fixes. 313 314 Major changes between SSLeay 0.9.0b and OpenSSL 0.9.1c: 315 o Integration of the popular NO_RSA/NO_DSA patches 316 o Initial support for compression inside the SSL record layer 317 o Added BIO proxy and filtering functionality 318 o Extended Big Number (BN) library 319 o Added RIPE MD160 message digest 320 o Addeed support for RC2/64bit cipher 321 o Extended ASN.1 parser routines 322 o Adjustations of the source tree for CVS 323 o Support for various new platforms 324 325