NEWS revision 101618 
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 0.9.6f and OpenSSL 0.9.6g:
9
10      o Important building fixes on Unix.
11
12  Major changes between OpenSSL 0.9.6e and OpenSSL 0.9.6f:
13
14      o Various important bugfixes.
15
16  Major changes between OpenSSL 0.9.6d and OpenSSL 0.9.6e:
17
18      o Important security related bugfixes.
19      o Various SSL/TLS library bugfixes.
20
21  Major changes between OpenSSL 0.9.6c and OpenSSL 0.9.6d:
22
23      o Various SSL/TLS library bugfixes.
24      o Fix DH parameter generation for 'non-standard' generators.
25
26  Major changes between OpenSSL 0.9.6b and OpenSSL 0.9.6c:
27
28      o Various SSL/TLS library bugfixes.
29      o BIGNUM library fixes.
30      o RSA OAEP and random number generation fixes.
31      o Object identifiers corrected and added.
32      o Add assembler BN routines for IA64.
33      o Add support for OS/390 Unix, UnixWare with gcc, OpenUNIX 8,
34        MIPS Linux; shared library support for Irix, HP-UX.
35      o Add crypto accelerator support for AEP, Baltimore SureWare,
36        Broadcom and Cryptographic Appliance's keyserver
37        [in 0.9.6c-engine release].
38
39  Major changes between OpenSSL 0.9.6a and OpenSSL 0.9.6b:
40
41      o Security fix: PRNG improvements.
42      o Security fix: RSA OAEP check.
43      o Security fix: Reinsert and fix countermeasure to Bleichbacher's
44        attack.
45      o MIPS bug fix in BIGNUM.
46      o Bug fix in "openssl enc".
47      o Bug fix in X.509 printing routine.
48      o Bug fix in DSA verification routine and DSA S/MIME verification.
49      o Bug fix to make PRNG thread-safe.
50      o Bug fix in RAND_file_name().
51      o Bug fix in compatibility mode trust settings.
52      o Bug fix in blowfish EVP.
53      o Increase default size for BIO buffering filter.
54      o Compatibility fixes in some scripts.
55
56  Major changes between OpenSSL 0.9.6 and OpenSSL 0.9.6a:
57
58      o Security fix: change behavior of OpenSSL to avoid using
59        environment variables when running as root.
60      o Security fix: check the result of RSA-CRT to reduce the
61        possibility of deducing the private key from an incorrectly
62        calculated signature.
63      o Security fix: prevent Bleichenbacher's DSA attack.
64      o Security fix: Zero the premaster secret after deriving the
65        master secret in DH ciphersuites.
66      o Reimplement SSL_peek(), which had various problems.
67      o Compatibility fix: the function des_encrypt() renamed to
68        des_encrypt1() to avoid clashes with some Unixen libc.
69      o Bug fixes for Win32, HP/UX and Irix.
70      o Bug fixes in BIGNUM, SSL, PKCS#7, PKCS#12, X.509, CONF and
71        memory checking routines.
72      o Bug fixes for RSA operations in threaded environments.
73      o Bug fixes in misc. openssl applications.
74      o Remove a few potential memory leaks.
75      o Add tighter checks of BIGNUM routines.
76      o Shared library support has been reworked for generality.
77      o More documentation.
78      o New function BN_rand_range().
79      o Add "-rand" option to openssl s_client and s_server.
80
81  Major changes between OpenSSL 0.9.5a and OpenSSL 0.9.6:
82
83      o Some documentation for BIO and SSL libraries.
84      o Enhanced chain verification using key identifiers.
85      o New sign and verify options to 'dgst' application.
86      o Support for DER and PEM encoded messages in 'smime' application.
87      o New 'rsautl' application, low level RSA utility.
88      o MD4 now included.
89      o Bugfix for SSL rollback padding check.
90      o Support for external crypto devices [1].
91      o Enhanced EVP interface.
92
93    [1] The support for external crypto devices is currently a separate
94        distribution.  See the file README.ENGINE.
95
96  Major changes between OpenSSL 0.9.5 and OpenSSL 0.9.5a:
97
98      o Bug fixes for Win32, SuSE Linux, NeXTSTEP and FreeBSD 2.2.8 
99      o Shared library support for HPUX and Solaris-gcc
100      o Support of Linux/IA64
101      o Assembler support for Mingw32
102      o New 'rand' application
103      o New way to check for existence of algorithms from scripts
104
105  Major changes between OpenSSL 0.9.4 and OpenSSL 0.9.5:
106
107      o S/MIME support in new 'smime' command
108      o Documentation for the OpenSSL command line application
109      o Automation of 'req' application
110      o Fixes to make s_client, s_server work under Windows
111      o Support for multiple fieldnames in SPKACs
112      o New SPKAC command line utilty and associated library functions
113      o Options to allow passwords to be obtained from various sources
114      o New public key PEM format and options to handle it
115      o Many other fixes and enhancements to command line utilities
116      o Usable certificate chain verification
117      o Certificate purpose checking
118      o Certificate trust settings
119      o Support of authority information access extension
120      o Extensions in certificate requests
121      o Simplified X509 name and attribute routines
122      o Initial (incomplete) support for international character sets
123      o New DH_METHOD, DSA_METHOD and enhanced RSA_METHOD
124      o Read only memory BIOs and simplified creation function
125      o TLS/SSL protocol bugfixes: Accept TLS 'client hello' in SSL 3.0
126        record; allow fragmentation and interleaving of handshake and other
127        data
128      o TLS/SSL code now "tolerates" MS SGC
129      o Work around for Netscape client certificate hang bug
130      o RSA_NULL option that removes RSA patent code but keeps other
131        RSA functionality
132      o Memory leak detection now allows applications to add extra information
133        via a per-thread stack
134      o PRNG robustness improved
135      o EGD support
136      o BIGNUM library bug fixes
137      o Faster DSA parameter generation
138      o Enhanced support for Alpha Linux
139      o Experimental MacOS support
140
141  Major changes between OpenSSL 0.9.3 and OpenSSL 0.9.4:
142
143      o Transparent support for PKCS#8 format private keys: these are used
144        by several software packages and are more secure than the standard
145        form
146      o PKCS#5 v2.0 implementation
147      o Password callbacks have a new void * argument for application data
148      o Avoid various memory leaks
149      o New pipe-like BIO that allows using the SSL library when actual I/O
150        must be handled by the application (BIO pair)
151
152  Major changes between OpenSSL 0.9.2b and OpenSSL 0.9.3:
153      o Lots of enhancements and cleanups to the Configuration mechanism
154      o RSA OEAP related fixes
155      o Added `openssl ca -revoke' option for revoking a certificate
156      o Source cleanups: const correctness, type-safe stacks and ASN.1 SETs
157      o Source tree cleanups: removed lots of obsolete files
158      o Thawte SXNet, certificate policies and CRL distribution points
159        extension support
160      o Preliminary (experimental) S/MIME support
161      o Support for ASN.1 UTF8String and VisibleString
162      o Full integration of PKCS#12 code
163      o Sparc assembler bignum implementation, optimized hash functions
164      o Option to disable selected ciphers
165
166  Major changes between OpenSSL 0.9.1c and OpenSSL 0.9.2b:
167      o Fixed a security hole related to session resumption
168      o Fixed RSA encryption routines for the p < q case
169      o "ALL" in cipher lists now means "everything except NULL ciphers"
170      o Support for Triple-DES CBCM cipher
171      o Support of Optimal Asymmetric Encryption Padding (OAEP) for RSA
172      o First support for new TLSv1 ciphers
173      o Added a few new BIOs (syslog BIO, reliable BIO)
174      o Extended support for DSA certificate/keys.
175      o Extended support for Certificate Signing Requests (CSR)
176      o Initial support for X.509v3 extensions
177      o Extended support for compression inside the SSL record layer
178      o Overhauled Win32 builds
179      o Cleanups and fixes to the Big Number (BN) library
180      o Support for ASN.1 GeneralizedTime
181      o Splitted ASN.1 SETs from SEQUENCEs
182      o ASN1 and PEM support for Netscape Certificate Sequences
183      o Overhauled Perl interface
184      o Lots of source tree cleanups.
185      o Lots of memory leak fixes.
186      o Lots of bug fixes.
187
188  Major changes between SSLeay 0.9.0b and OpenSSL 0.9.1c:
189      o Integration of the popular NO_RSA/NO_DSA patches
190      o Initial support for compression inside the SSL record layer
191      o Added BIO proxy and filtering functionality
192      o Extended Big Number (BN) library
193      o Added RIPE MD160 message digest
194      o Addeed support for RC2/64bit cipher
195      o Extended ASN.1 parser routines
196      o Adjustations of the source tree for CVS
197      o Support for various new platforms
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