NEWS revision 89837 
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  Changes between OpenSSL 0.9.6b and OpenSSL 0.9.6c:
9
10      o Various SSL/TLS library bugfixes.
11      o BIGNUM library fixes.
12      o RSA OAEP and random number generation fixes.
13      o Object identifiers corrected and added.
14      o Add assembler BN routines for IA64.
15      o Add support for OS/390 Unix, UnixWare with gcc, OpenUNIX 8,
16        MIPS Linux; shared library support for Irix, HP-UX.
17      o Add crypto accelerator support for AEP, Baltimore SureWare,
18        Broadcom and Cryptographic Appliance's keyserver
19        [in 0.9.6c-engine release].
20
21  Changes between OpenSSL 0.9.6a and OpenSSL 0.9.6b:
22
23      o Security fix: PRNG improvements.
24      o Security fix: RSA OAEP check.
25      o Security fix: Reinsert and fix countermeasure to Bleichbacher's
26        attack.
27      o MIPS bug fix in BIGNUM.
28      o Bug fix in "openssl enc".
29      o Bug fix in X.509 printing routine.
30      o Bug fix in DSA verification routine and DSA S/MIME verification.
31      o Bug fix to make PRNG thread-safe.
32      o Bug fix in RAND_file_name().
33      o Bug fix in compatibility mode trust settings.
34      o Bug fix in blowfish EVP.
35      o Increase default size for BIO buffering filter.
36      o Compatibility fixes in some scripts.
37
38  Major changes between OpenSSL 0.9.6 and OpenSSL 0.9.6a:
39
40      o Security fix: change behavior of OpenSSL to avoid using
41        environment variables when running as root.
42      o Security fix: check the result of RSA-CRT to reduce the
43        possibility of deducing the private key from an incorrectly
44        calculated signature.
45      o Security fix: prevent Bleichenbacher's DSA attack.
46      o Security fix: Zero the premaster secret after deriving the
47        master secret in DH ciphersuites.
48      o Reimplement SSL_peek(), which had various problems.
49      o Compatibility fix: the function des_encrypt() renamed to
50        des_encrypt1() to avoid clashes with some Unixen libc.
51      o Bug fixes for Win32, HP/UX and Irix.
52      o Bug fixes in BIGNUM, SSL, PKCS#7, PKCS#12, X.509, CONF and
53        memory checking routines.
54      o Bug fixes for RSA operations in threaded enviroments.
55      o Bug fixes in misc. openssl applications.
56      o Remove a few potential memory leaks.
57      o Add tighter checks of BIGNUM routines.
58      o Shared library support has been reworked for generality.
59      o More documentation.
60      o New function BN_rand_range().
61      o Add "-rand" option to openssl s_client and s_server.
62
63  Major changes between OpenSSL 0.9.5a and OpenSSL 0.9.6:
64
65      o Some documentation for BIO and SSL libraries.
66      o Enhanced chain verification using key identifiers.
67      o New sign and verify options to 'dgst' application.
68      o Support for DER and PEM encoded messages in 'smime' application.
69      o New 'rsautl' application, low level RSA utility.
70      o MD4 now included.
71      o Bugfix for SSL rollback padding check.
72      o Support for external crypto devices [1].
73      o Enhanced EVP interface.
74
75    [1] The support for external crypto devices is currently a separate
76        distribution.  See the file README.ENGINE.
77
78  Major changes between OpenSSL 0.9.5 and OpenSSL 0.9.5a:
79
80      o Bug fixes for Win32, SuSE Linux, NeXTSTEP and FreeBSD 2.2.8 
81      o Shared library support for HPUX and Solaris-gcc
82      o Support of Linux/IA64
83      o Assembler support for Mingw32
84      o New 'rand' application
85      o New way to check for existence of algorithms from scripts
86
87  Major changes between OpenSSL 0.9.4 and OpenSSL 0.9.5:
88
89      o S/MIME support in new 'smime' command
90      o Documentation for the OpenSSL command line application
91      o Automation of 'req' application
92      o Fixes to make s_client, s_server work under Windows
93      o Support for multiple fieldnames in SPKACs
94      o New SPKAC command line utilty and associated library functions
95      o Options to allow passwords to be obtained from various sources
96      o New public key PEM format and options to handle it
97      o Many other fixes and enhancements to command line utilities
98      o Usable certificate chain verification
99      o Certificate purpose checking
100      o Certificate trust settings
101      o Support of authority information access extension
102      o Extensions in certificate requests
103      o Simplified X509 name and attribute routines
104      o Initial (incomplete) support for international character sets
105      o New DH_METHOD, DSA_METHOD and enhanced RSA_METHOD
106      o Read only memory BIOs and simplified creation function
107      o TLS/SSL protocol bugfixes: Accept TLS 'client hello' in SSL 3.0
108        record; allow fragmentation and interleaving of handshake and other
109        data
110      o TLS/SSL code now "tolerates" MS SGC
111      o Work around for Netscape client certificate hang bug
112      o RSA_NULL option that removes RSA patent code but keeps other
113        RSA functionality
114      o Memory leak detection now allows applications to add extra information
115        via a per-thread stack
116      o PRNG robustness improved
117      o EGD support
118      o BIGNUM library bug fixes
119      o Faster DSA parameter generation
120      o Enhanced support for Alpha Linux
121      o Experimental MacOS support
122
123  Major changes between OpenSSL 0.9.3 and OpenSSL 0.9.4:
124
125      o Transparent support for PKCS#8 format private keys: these are used
126        by several software packages and are more secure than the standard
127        form
128      o PKCS#5 v2.0 implementation
129      o Password callbacks have a new void * argument for application data
130      o Avoid various memory leaks
131      o New pipe-like BIO that allows using the SSL library when actual I/O
132        must be handled by the application (BIO pair)
133
134  Major changes between OpenSSL 0.9.2b and OpenSSL 0.9.3:
135      o Lots of enhancements and cleanups to the Configuration mechanism
136      o RSA OEAP related fixes
137      o Added `openssl ca -revoke' option for revoking a certificate
138      o Source cleanups: const correctness, type-safe stacks and ASN.1 SETs
139      o Source tree cleanups: removed lots of obsolete files
140      o Thawte SXNet, certificate policies and CRL distribution points
141        extension support
142      o Preliminary (experimental) S/MIME support
143      o Support for ASN.1 UTF8String and VisibleString
144      o Full integration of PKCS#12 code
145      o Sparc assembler bignum implementation, optimized hash functions
146      o Option to disable selected ciphers
147
148  Major changes between OpenSSL 0.9.1c and OpenSSL 0.9.2b:
149      o Fixed a security hole related to session resumption
150      o Fixed RSA encryption routines for the p < q case
151      o "ALL" in cipher lists now means "everything except NULL ciphers"
152      o Support for Triple-DES CBCM cipher
153      o Support of Optimal Asymmetric Encryption Padding (OAEP) for RSA
154      o First support for new TLSv1 ciphers
155      o Added a few new BIOs (syslog BIO, reliable BIO)
156      o Extended support for DSA certificate/keys.
157      o Extended support for Certificate Signing Requests (CSR)
158      o Initial support for X.509v3 extensions
159      o Extended support for compression inside the SSL record layer
160      o Overhauled Win32 builds
161      o Cleanups and fixes to the Big Number (BN) library
162      o Support for ASN.1 GeneralizedTime
163      o Splitted ASN.1 SETs from SEQUENCEs
164      o ASN1 and PEM support for Netscape Certificate Sequences
165      o Overhauled Perl interface
166      o Lots of source tree cleanups.
167      o Lots of memory leak fixes.
168      o Lots of bug fixes.
169
170  Major changes between SSLeay 0.9.0b and OpenSSL 0.9.1c:
171      o Integration of the popular NO_RSA/NO_DSA patches
172      o Initial support for compression inside the SSL record layer
173      o Added BIO proxy and filtering functionality
174      o Extended Big Number (BN) library
175      o Added RIPE MD160 message digest
176      o Addeed support for RC2/64bit cipher
177      o Extended ASN.1 parser routines
178      o Adjustations of the source tree for CVS
179      o Support for various new platforms
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