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