NEWS

   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 0.9.7:
   9
  10       o New library section OCSP.
  11       o Complete haul-over of the ASN.1 library section.
  12       o Support for external crypto devices ('engine') is no longer
  13         a separate distribution.
  14
  15   Changes between OpenSSL 0.9.6b and OpenSSL 0.9.6c:
  16
  17       o Various SSL/TLS library bugfixes.
  18       o BIGNUM library fixes.
  19
  20   Changes between OpenSSL 0.9.6a and OpenSSL 0.9.6b:
  21
  22       o Security fix: PRNG improvements.
  23       o Security fix: RSA OAEP check.
  24       o Security fix: Reinsert and fix countermeasure to Bleichbacher's
  25         attack.
  26       o MIPS bug fix in BIGNUM.
  27       o Bug fix in "openssl enc".
  28       o Bug fix in X.509 printing routine.
  29       o Bug fix in DSA verification routine and DSA S/MIME verification.
  30       o Bug fix to make PRNG thread-safe.
  31       o Bug fix in RAND_file_name().
  32       o Bug fix in compatibility mode trust settings.
  33       o Bug fix in blowfish EVP.
  34       o Increase default size for BIO buffering filter.
  35       o Compatibility fixes in some scripts.
  36
  37   Major changes between OpenSSL 0.9.6 and OpenSSL 0.9.6a:
  38
  39       o Security fix: change behavior of OpenSSL to avoid using
  40         environment variables when running as root.
  41       o Security fix: check the result of RSA-CRT to reduce the
  42         possibility of deducing the private key from an incorrectly
  43         calculated signature.
  44       o Security fix: prevent Bleichenbacher's DSA attack.
  45       o Security fix: Zero the premaster secret after deriving the
  46         master secret in DH ciphersuites.
  47       o Reimplement SSL_peek(), which had various problems.
  48       o Compatibility fix: the function des_encrypt() renamed to
  49         des_encrypt1() to avoid clashes with some Unixen libc.
  50       o Bug fixes for Win32, HP/UX and Irix.
  51       o Bug fixes in BIGNUM, SSL, PKCS#7, PKCS#12, X.509, CONF and
  52         memory checking routines.
  53       o Bug fixes for RSA operations in threaded enviroments.
  54       o Bug fixes in misc. openssl applications.
  55       o Remove a few potential memory leaks.
  56       o Add tighter checks of BIGNUM routines.
  57       o Shared library support has been reworked for generality.
  58       o More documentation.
  59       o New function BN_rand_range().
  60       o Add "-rand" option to openssl s_client and s_server.
  61
  62   Major changes between OpenSSL 0.9.5a and OpenSSL 0.9.6:
  63
  64       o Some documentation for BIO and SSL libraries.
  65       o Enhanced chain verification using key identifiers.
  66       o New sign and verify options to 'dgst' application.
  67       o Support for DER and PEM encoded messages in 'smime' application.
  68       o New 'rsautl' application, low level RSA utility.
  69       o MD4 now included.
  70       o Bugfix for SSL rollback padding check.
  71       o Support for external crypto devices [1].
  72       o Enhanced EVP interface.
  73
  74     [1] The support for external crypto devices is currently a separate
  75         distribution.  See the file README.ENGINE.
  76
  77   Major changes between OpenSSL 0.9.5 and OpenSSL 0.9.5a:
  78
  79       o Bug fixes for Win32, SuSE Linux, NeXTSTEP and FreeBSD 2.2.8
  80       o Shared library support for HPUX and Solaris-gcc
  81       o Support of Linux/IA64
  82       o Assembler support for Mingw32
  83       o New 'rand' application
  84       o New way to check for existence of algorithms from scripts
  85
  86   Major changes between OpenSSL 0.9.4 and OpenSSL 0.9.5:
  87
  88       o S/MIME support in new 'smime' command
  89       o Documentation for the OpenSSL command line application
  90       o Automation of 'req' application
  91       o Fixes to make s_client, s_server work under Windows
  92       o Support for multiple fieldnames in SPKACs
  93       o New SPKAC command line utilty and associated library functions
  94       o Options to allow passwords to be obtained from various sources
  95       o New public key PEM format and options to handle it
  96       o Many other fixes and enhancements to command line utilities
  97       o Usable certificate chain verification
  98       o Certificate purpose checking
  99       o Certificate trust settings
 100       o Support of authority information access extension
 101       o Extensions in certificate requests
 102       o Simplified X509 name and attribute routines
 103       o Initial (incomplete) support for international character sets
 104       o New DH_METHOD, DSA_METHOD and enhanced RSA_METHOD
 105       o Read only memory BIOs and simplified creation function
 106       o TLS/SSL protocol bugfixes: Accept TLS 'client hello' in SSL 3.0
 107         record; allow fragmentation and interleaving of handshake and other
 108         data
 109       o TLS/SSL code now "tolerates" MS SGC
 110       o Work around for Netscape client certificate hang bug
 111       o RSA_NULL option that removes RSA patent code but keeps other
 112         RSA functionality
 113       o Memory leak detection now allows applications to add extra information
 114         via a per-thread stack
 115       o PRNG robustness improved
 116       o EGD support
 117       o BIGNUM library bug fixes
 118       o Faster DSA parameter generation
 119       o Enhanced support for Alpha Linux
 120       o Experimental MacOS support
 121
 122   Major changes between OpenSSL 0.9.3 and OpenSSL 0.9.4:
 123
 124       o Transparent support for PKCS#8 format private keys: these are used
 125         by several software packages and are more secure than the standard
 126         form
 127       o PKCS#5 v2.0 implementation
 128       o Password callbacks have a new void * argument for application data
 129       o Avoid various memory leaks
 130       o New pipe-like BIO that allows using the SSL library when actual I/O
 131         must be handled by the application (BIO pair)
 132
 133   Major changes between OpenSSL 0.9.2b and OpenSSL 0.9.3:
 134       o Lots of enhancements and cleanups to the Configuration mechanism
 135       o RSA OEAP related fixes
 136       o Added `openssl ca -revoke' option for revoking a certificate
 137       o Source cleanups: const correctness, type-safe stacks and ASN.1 SETs
 138       o Source tree cleanups: removed lots of obsolete files
 139       o Thawte SXNet, certificate policies and CRL distribution points
 140         extension support
 141       o Preliminary (experimental) S/MIME support
 142       o Support for ASN.1 UTF8String and VisibleString
 143       o Full integration of PKCS#12 code
 144       o Sparc assembler bignum implementation, optimized hash functions
 145       o Option to disable selected ciphers
 146
 147   Major changes between OpenSSL 0.9.1c and OpenSSL 0.9.2b:
 148       o Fixed a security hole related to session resumption
 149       o Fixed RSA encryption routines for the p < q case
 150       o "ALL" in cipher lists now means "everything except NULL ciphers"
 151       o Support for Triple-DES CBCM cipher
 152       o Support of Optimal Asymmetric Encryption Padding (OAEP) for RSA
 153       o First support for new TLSv1 ciphers
 154       o Added a few new BIOs (syslog BIO, reliable BIO)
 155       o Extended support for DSA certificate/keys.
 156       o Extended support for Certificate Signing Requests (CSR)
 157       o Initial support for X.509v3 extensions
 158       o Extended support for compression inside the SSL record layer
 159       o Overhauled Win32 builds
 160       o Cleanups and fixes to the Big Number (BN) library
 161       o Support for ASN.1 GeneralizedTime
 162       o Splitted ASN.1 SETs from SEQUENCEs
 163       o ASN1 and PEM support for Netscape Certificate Sequences
 164       o Overhauled Perl interface
 165       o Lots of source tree cleanups.
 166       o Lots of memory leak fixes.
 167       o Lots of bug fixes.
 168
 169   Major changes between SSLeay 0.9.0b and OpenSSL 0.9.1c:
 170       o Integration of the popular NO_RSA/NO_DSA patches
 171       o Initial support for compression inside the SSL record layer
 172       o Added BIO proxy and filtering functionality
 173       o Extended Big Number (BN) library
 174       o Added RIPE MD160 message digest
 175       o Addeed support for RC2/64bit cipher
 176       o Extended ASN.1 parser routines
 177       o Adjustations of the source tree for CVS
 178       o Support for various new platforms
 179