NEWS revision 76866 
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 0.9.6 and OpenSSL 0.9.6a:
9
10      o Security fix: change behavior of OpenSSL to avoid using
11        environment variables when running as root.
12      o Security fix: check the result of RSA-CRT to reduce the
13        possibility of deducing the private key from an incorrectly
14        calculated signature.
15      o Security fix: prevent Bleichenbacher's DSA attack.
16      o Security fix: Zero the premaster secret after deriving the
17        master secret in DH ciphersuites.
18      o Reimplement SSL_peek(), which had various problems.
19      o Compatibility fix: the function des_encrypt() renamed to
20        des_encrypt1() to avoid clashes with some Unixen libc.
21      o Bug fixes for Win32, HP/UX and Irix.
22      o Bug fixes in BIGNUM, SSL, PKCS#7, PKCS#12, X.509, CONF and
23        memory checking routines.
24      o Bug fixes for RSA operations in threaded enviroments.
25      o Bug fixes in misc. openssl applications.
26      o Remove a few potential memory leaks.
27      o Add tighter checks of BIGNUM routines.
28      o Shared library support has been reworked for generality.
29      o More documentation.
30      o New function BN_rand_range().
31      o Add "-rand" option to openssl s_client and s_server.
32
33  Major changes between OpenSSL 0.9.5a and OpenSSL 0.9.6:
34
35      o Some documentation for BIO and SSL libraries.
36      o Enhanced chain verification using key identifiers.
37      o New sign and verify options to 'dgst' application.
38      o Support for DER and PEM encoded messages in 'smime' application.
39      o New 'rsautl' application, low level RSA utility.
40      o MD4 now included.
41      o Bugfix for SSL rollback padding check.
42      o Support for external crypto devices [1].
43      o Enhanced EVP interface.
44
45    [1] The support for external crypto devices is currently a separate
46        distribution.  See the file README.ENGINE.
47
48  Major changes between OpenSSL 0.9.5 and OpenSSL 0.9.5a:
49
50      o Bug fixes for Win32, SuSE Linux, NeXTSTEP and FreeBSD 2.2.8 
51      o Shared library support for HPUX and Solaris-gcc
52      o Support of Linux/IA64
53      o Assembler support for Mingw32
54      o New 'rand' application
55      o New way to check for existence of algorithms from scripts
56
57  Major changes between OpenSSL 0.9.4 and OpenSSL 0.9.5:
58
59      o S/MIME support in new 'smime' command
60      o Documentation for the OpenSSL command line application
61      o Automation of 'req' application
62      o Fixes to make s_client, s_server work under Windows
63      o Support for multiple fieldnames in SPKACs
64      o New SPKAC command line utilty and associated library functions
65      o Options to allow passwords to be obtained from various sources
66      o New public key PEM format and options to handle it
67      o Many other fixes and enhancements to command line utilities
68      o Usable certificate chain verification
69      o Certificate purpose checking
70      o Certificate trust settings
71      o Support of authority information access extension
72      o Extensions in certificate requests
73      o Simplified X509 name and attribute routines
74      o Initial (incomplete) support for international character sets
75      o New DH_METHOD, DSA_METHOD and enhanced RSA_METHOD
76      o Read only memory BIOs and simplified creation function
77      o TLS/SSL protocol bugfixes: Accept TLS 'client hello' in SSL 3.0
78        record; allow fragmentation and interleaving of handshake and other
79        data
80      o TLS/SSL code now "tolerates" MS SGC
81      o Work around for Netscape client certificate hang bug
82      o RSA_NULL option that removes RSA patent code but keeps other
83        RSA functionality
84      o Memory leak detection now allows applications to add extra information
85        via a per-thread stack
86      o PRNG robustness improved
87      o EGD support
88      o BIGNUM library bug fixes
89      o Faster DSA parameter generation
90      o Enhanced support for Alpha Linux
91      o Experimental MacOS support
92
93  Major changes between OpenSSL 0.9.3 and OpenSSL 0.9.4:
94
95      o Transparent support for PKCS#8 format private keys: these are used
96        by several software packages and are more secure than the standard
97        form
98      o PKCS#5 v2.0 implementation
99      o Password callbacks have a new void * argument for application data
100      o Avoid various memory leaks
101      o New pipe-like BIO that allows using the SSL library when actual I/O
102        must be handled by the application (BIO pair)
103
104  Major changes between OpenSSL 0.9.2b and OpenSSL 0.9.3:
105      o Lots of enhancements and cleanups to the Configuration mechanism
106      o RSA OEAP related fixes
107      o Added `openssl ca -revoke' option for revoking a certificate
108      o Source cleanups: const correctness, type-safe stacks and ASN.1 SETs
109      o Source tree cleanups: removed lots of obsolete files
110      o Thawte SXNet, certificate policies and CRL distribution points
111        extension support
112      o Preliminary (experimental) S/MIME support
113      o Support for ASN.1 UTF8String and VisibleString
114      o Full integration of PKCS#12 code
115      o Sparc assembler bignum implementation, optimized hash functions
116      o Option to disable selected ciphers
117
118  Major changes between OpenSSL 0.9.1c and OpenSSL 0.9.2b:
119      o Fixed a security hole related to session resumption
120      o Fixed RSA encryption routines for the p < q case
121      o "ALL" in cipher lists now means "everything except NULL ciphers"
122      o Support for Triple-DES CBCM cipher
123      o Support of Optimal Asymmetric Encryption Padding (OAEP) for RSA
124      o First support for new TLSv1 ciphers
125      o Added a few new BIOs (syslog BIO, reliable BIO)
126      o Extended support for DSA certificate/keys.
127      o Extended support for Certificate Signing Requests (CSR)
128      o Initial support for X.509v3 extensions
129      o Extended support for compression inside the SSL record layer
130      o Overhauled Win32 builds
131      o Cleanups and fixes to the Big Number (BN) library
132      o Support for ASN.1 GeneralizedTime
133      o Splitted ASN.1 SETs from SEQUENCEs
134      o ASN1 and PEM support for Netscape Certificate Sequences
135      o Overhauled Perl interface
136      o Lots of source tree cleanups.
137      o Lots of memory leak fixes.
138      o Lots of bug fixes.
139
140  Major changes between SSLeay 0.9.0b and OpenSSL 0.9.1c:
141      o Integration of the popular NO_RSA/NO_DSA patches
142      o Initial support for compression inside the SSL record layer
143      o Added BIO proxy and filtering functionality
144      o Extended Big Number (BN) library
145      o Added RIPE MD160 message digest
146      o Addeed support for RC2/64bit cipher
147      o Extended ASN.1 parser routines
148      o Adjustations of the source tree for CVS
149      o Support for various new platforms
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