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 Changes between OpenSSL 0.9.6b and OpenSSL 0.9.6c:
10 o Various SSL/TLS library bugfixes.
11 o BIGNUM library fixes.
12 o PKCS7 library fixes.
14 o DSA and DH library fixes.
17 o Object identifiers corrected and added.
19 o Add the functions BN_pseudo_rand_range, SSL_get_rfd, SSL_get_wfd
20 and X509_STORE_CTX_set_verify_cb.
21 o Add the possibility to use md4WithRSAEncryption through EVP.
22 o Add assembler BN routines for IA64.
23 o Add configuration entries for OS/390 Unix, UnixWare with gcc,
24 OpenUNIX 8 and big- as well as little-endian MIPS with Linux,
25 o Add threading support for the configuration entry BC-16.
26 o Add shared library support for Irix, HP-UX.
27 o Add detection of GNU ld when building shared libraries.
28 o Add a BIG WARNING TEXT in doc/ssleay.txt about the trust one can
30 o Add a bunch of documentation.
31 o Add crypto accelerator support for AEP, Baltimore SureWare,
32 Broadcom and Cryptographic Appliance's keyserver
33 [in 0.9.6c-engine release].
35 Changes between OpenSSL 0.9.6a and OpenSSL 0.9.6b:
37 o Security fix: PRNG improvements.
38 o Security fix: RSA OAEP check.
39 o Security fix: Reinsert and fix countermeasure to Bleichbacher's
41 o MIPS bug fix in BIGNUM.
42 o Bug fix in "openssl enc".
43 o Bug fix in X.509 printing routine.
44 o Bug fix in DSA verification routine and DSA S/MIME verification.
45 o Bug fix to make PRNG thread-safe.
46 o Bug fix in RAND_file_name().
47 o Bug fix in compatibility mode trust settings.
48 o Bug fix in blowfish EVP.
49 o Increase default size for BIO buffering filter.
50 o Compatibility fixes in some scripts.
52 Major changes between OpenSSL 0.9.6 and OpenSSL 0.9.6a:
54 o Security fix: change behavior of OpenSSL to avoid using
55 environment variables when running as root.
56 o Security fix: check the result of RSA-CRT to reduce the
57 possibility of deducing the private key from an incorrectly
59 o Security fix: prevent Bleichenbacher's DSA attack.
60 o Security fix: Zero the premaster secret after deriving the
61 master secret in DH ciphersuites.
62 o Reimplement SSL_peek(), which had various problems.
63 o Compatibility fix: the function des_encrypt() renamed to
64 des_encrypt1() to avoid clashes with some Unixen libc.
65 o Bug fixes for Win32, HP/UX and Irix.
66 o Bug fixes in BIGNUM, SSL, PKCS#7, PKCS#12, X.509, CONF and
67 memory checking routines.
68 o Bug fixes for RSA operations in threaded enviroments.
69 o Bug fixes in misc. openssl applications.
70 o Remove a few potential memory leaks.
71 o Add tighter checks of BIGNUM routines.
72 o Shared library support has been reworked for generality.
74 o New function BN_rand_range().
75 o Add "-rand" option to openssl s_client and s_server.
77 Major changes between OpenSSL 0.9.5a and OpenSSL 0.9.6:
79 o Some documentation for BIO and SSL libraries.
80 o Enhanced chain verification using key identifiers.
81 o New sign and verify options to 'dgst' application.
82 o Support for DER and PEM encoded messages in 'smime' application.
83 o New 'rsautl' application, low level RSA utility.
85 o Bugfix for SSL rollback padding check.
86 o Support for external crypto devices [1].
87 o Enhanced EVP interface.
89 [1] The support for external crypto devices is currently a separate
90 distribution. See the file README.ENGINE.
92 Major changes between OpenSSL 0.9.5 and OpenSSL 0.9.5a:
94 o Bug fixes for Win32, SuSE Linux, NeXTSTEP and FreeBSD 2.2.8
95 o Shared library support for HPUX and Solaris-gcc
96 o Support of Linux/IA64
97 o Assembler support for Mingw32
98 o New 'rand' application
99 o New way to check for existence of algorithms from scripts
101 Major changes between OpenSSL 0.9.4 and OpenSSL 0.9.5:
103 o S/MIME support in new 'smime' command
104 o Documentation for the OpenSSL command line application
105 o Automation of 'req' application
106 o Fixes to make s_client, s_server work under Windows
107 o Support for multiple fieldnames in SPKACs
108 o New SPKAC command line utilty and associated library functions
109 o Options to allow passwords to be obtained from various sources
110 o New public key PEM format and options to handle it
111 o Many other fixes and enhancements to command line utilities
112 o Usable certificate chain verification
113 o Certificate purpose checking
114 o Certificate trust settings
115 o Support of authority information access extension
116 o Extensions in certificate requests
117 o Simplified X509 name and attribute routines
118 o Initial (incomplete) support for international character sets
119 o New DH_METHOD, DSA_METHOD and enhanced RSA_METHOD
120 o Read only memory BIOs and simplified creation function
121 o TLS/SSL protocol bugfixes: Accept TLS 'client hello' in SSL 3.0
122 record; allow fragmentation and interleaving of handshake and other
124 o TLS/SSL code now "tolerates" MS SGC
125 o Work around for Netscape client certificate hang bug
126 o RSA_NULL option that removes RSA patent code but keeps other
128 o Memory leak detection now allows applications to add extra information
129 via a per-thread stack
130 o PRNG robustness improved
132 o BIGNUM library bug fixes
133 o Faster DSA parameter generation
134 o Enhanced support for Alpha Linux
135 o Experimental MacOS support
137 Major changes between OpenSSL 0.9.3 and OpenSSL 0.9.4:
139 o Transparent support for PKCS#8 format private keys: these are used
140 by several software packages and are more secure than the standard
142 o PKCS#5 v2.0 implementation
143 o Password callbacks have a new void * argument for application data
144 o Avoid various memory leaks
145 o New pipe-like BIO that allows using the SSL library when actual I/O
146 must be handled by the application (BIO pair)
148 Major changes between OpenSSL 0.9.2b and OpenSSL 0.9.3:
149 o Lots of enhancements and cleanups to the Configuration mechanism
150 o RSA OEAP related fixes
151 o Added `openssl ca -revoke' option for revoking a certificate
152 o Source cleanups: const correctness, type-safe stacks and ASN.1 SETs
153 o Source tree cleanups: removed lots of obsolete files
154 o Thawte SXNet, certificate policies and CRL distribution points
156 o Preliminary (experimental) S/MIME support
157 o Support for ASN.1 UTF8String and VisibleString
158 o Full integration of PKCS#12 code
159 o Sparc assembler bignum implementation, optimized hash functions
160 o Option to disable selected ciphers
162 Major changes between OpenSSL 0.9.1c and OpenSSL 0.9.2b:
163 o Fixed a security hole related to session resumption
164 o Fixed RSA encryption routines for the p < q case
165 o "ALL" in cipher lists now means "everything except NULL ciphers"
166 o Support for Triple-DES CBCM cipher
167 o Support of Optimal Asymmetric Encryption Padding (OAEP) for RSA
168 o First support for new TLSv1 ciphers
169 o Added a few new BIOs (syslog BIO, reliable BIO)
170 o Extended support for DSA certificate/keys.
171 o Extended support for Certificate Signing Requests (CSR)
172 o Initial support for X.509v3 extensions
173 o Extended support for compression inside the SSL record layer
174 o Overhauled Win32 builds
175 o Cleanups and fixes to the Big Number (BN) library
176 o Support for ASN.1 GeneralizedTime
177 o Splitted ASN.1 SETs from SEQUENCEs
178 o ASN1 and PEM support for Netscape Certificate Sequences
179 o Overhauled Perl interface
180 o Lots of source tree cleanups.
181 o Lots of memory leak fixes.
184 Major changes between SSLeay 0.9.0b and OpenSSL 0.9.1c:
185 o Integration of the popular NO_RSA/NO_DSA patches
186 o Initial support for compression inside the SSL record layer
187 o Added BIO proxy and filtering functionality
188 o Extended Big Number (BN) library
189 o Added RIPE MD160 message digest
190 o Addeed support for RC2/64bit cipher
191 o Extended ASN.1 parser routines
192 o Adjustations of the source tree for CVS
193 o Support for various new platforms