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       o Add crypto accelerator support for AEP, Baltimore SureWare
  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
 180