This file gives a brief overview of the major changes between each OpenSSL
release. For more details please read the CHANGES file.
+ Major changes between OpenSSL 1.0.1c and OpenSSL 1.0.1d:
+
+ o Fix renegotiation in TLS 1.1, 1.2 by using the correct TLS version.
+ o Include the fips configuration module.
+ o Fix OCSP bad key DoS attack CVE-2013-0166
+ o Fix for SSL/TLS/DTLS CBC plaintext recovery attack CVE-2013-0169
+ o Fix for TLS AESNI record handling flaw CVE-2012-2686
+
+ Major changes between OpenSSL 1.0.1b and OpenSSL 1.0.1c:
+
+ o Fix TLS/DTLS record length checking bug CVE-2012-2333
+ o Don't attempt to use non-FIPS composite ciphers in FIPS mode.
+
+ Major changes between OpenSSL 1.0.1a and OpenSSL 1.0.1b:
+
+ o Fix compilation error on non-x86 platforms.
+ o Make FIPS capable OpenSSL ciphers work in non-FIPS mode.
+ o Fix SSL_OP_NO_TLSv1_1 clash with SSL_OP_ALL in OpenSSL 1.0.0
+
+ Major changes between OpenSSL 1.0.1 and OpenSSL 1.0.1a:
+
+ o Fix for ASN1 overflow bug CVE-2012-2110
+ o Workarounds for some servers that hang on long client hellos.
+ o Fix SEGV in AES code.
+
+ Major changes between OpenSSL 1.0.0h and OpenSSL 1.0.1:
+
+ o TLS/DTLS heartbeat support.
+ o SCTP support.
+ o RFC 5705 TLS key material exporter.
+ o RFC 5764 DTLS-SRTP negotiation.
+ o Next Protocol Negotiation.
+ o PSS signatures in certificates, requests and CRLs.
+ o Support for password based recipient info for CMS.
+ o Support TLS v1.2 and TLS v1.1.
+ o Preliminary FIPS capability for unvalidated 2.0 FIPS module.
+ o SRP support.
+
+ Major changes between OpenSSL 1.0.0g and OpenSSL 1.0.0h:
+
+ o Fix for CMS/PKCS#7 MMA CVE-2012-0884
+ o Corrected fix for CVE-2011-4619
+ o Various DTLS fixes.
+
+ Major changes between OpenSSL 1.0.0f and OpenSSL 1.0.0g:
+
+ o Fix for DTLS DoS issue CVE-2012-0050
+
+ Major changes between OpenSSL 1.0.0e and OpenSSL 1.0.0f:
+
+ o Fix for DTLS plaintext recovery attack CVE-2011-4108
+ o Clear block padding bytes of SSL 3.0 records CVE-2011-4576
+ o Only allow one SGC handshake restart for SSL/TLS CVE-2011-4619
+ o Check parameters are not NULL in GOST ENGINE CVE-2012-0027
+ o Check for malformed RFC3779 data CVE-2011-4577
+
+ Major changes between OpenSSL 1.0.0d and OpenSSL 1.0.0e:
+
+ o Fix for CRL vulnerability issue CVE-2011-3207
+ o Fix for ECDH crashes CVE-2011-3210
+ o Protection against EC timing attacks.
+ o Support ECDH ciphersuites for certificates using SHA2 algorithms.
+ o Various DTLS fixes.
+
+ Major changes between OpenSSL 1.0.0c and OpenSSL 1.0.0d:
+
+ o Fix for security issue CVE-2011-0014
+
+ Major changes between OpenSSL 1.0.0b and OpenSSL 1.0.0c:
+
+ o Fix for security issue CVE-2010-4180
+ o Fix for CVE-2010-4252
+ o Fix mishandling of absent EC point format extension.
+ o Fix various platform compilation issues.
+ o Corrected fix for security issue CVE-2010-3864.
+
+ Major changes between OpenSSL 1.0.0a and OpenSSL 1.0.0b:
+
+ o Fix for security issue CVE-2010-3864.
+ o Fix for CVE-2010-2939
+ o Fix WIN32 build system for GOST ENGINE.
+
+ Major changes between OpenSSL 1.0.0 and OpenSSL 1.0.0a:
+
+ o Fix for security issue CVE-2010-1633.
+ o GOST MAC and CFB fixes.
+
+ Major changes between OpenSSL 0.9.8n and OpenSSL 1.0.0:
+
+ o RFC3280 path validation: sufficient to process PKITS tests.
+ o Integrated support for PVK files and keyblobs.
+ o Change default private key format to PKCS#8.
+ o CMS support: able to process all examples in RFC4134
+ o Streaming ASN1 encode support for PKCS#7 and CMS.
+ o Multiple signer and signer add support for PKCS#7 and CMS.
+ o ASN1 printing support.
+ o Whirlpool hash algorithm added.
+ o RFC3161 time stamp support.
+ o New generalised public key API supporting ENGINE based algorithms.
+ o New generalised public key API utilities.
+ o New ENGINE supporting GOST algorithms.
+ o SSL/TLS GOST ciphersuite support.
+ o PKCS#7 and CMS GOST support.
+ o RFC4279 PSK ciphersuite support.
+ o Supported points format extension for ECC ciphersuites.
+ o ecdsa-with-SHA224/256/384/512 signature types.
+ o dsa-with-SHA224 and dsa-with-SHA256 signature types.
+ o Opaque PRF Input TLS extension support.
+ o Updated time routines to avoid OS limitations.
+
+ Major changes between OpenSSL 0.9.8q and OpenSSL 0.9.8r:
+
+ o Fix for security issue CVE-2011-0014
+
+ Major changes between OpenSSL 0.9.8p and OpenSSL 0.9.8q:
+
+ o Fix for security issue CVE-2010-4180
+ o Fix for CVE-2010-4252
+
+ Major changes between OpenSSL 0.9.8o and OpenSSL 0.9.8p:
+
+ o Fix for security issue CVE-2010-3864.
+
+ Major changes between OpenSSL 0.9.8n and OpenSSL 0.9.8o:
+
+ o Fix for security issue CVE-2010-0742.
+ o Various DTLS fixes.
+ o Recognise SHA2 certificates if only SSL algorithms added.
+ o Fix for no-rc4 compilation.
+ o Chil ENGINE unload workaround.
+
+ Major changes between OpenSSL 0.9.8m and OpenSSL 0.9.8n:
+
+ o CFB cipher definition fixes.
+ o Fix security issues CVE-2010-0740 and CVE-2010-0433.
+
+ Major changes between OpenSSL 0.9.8l and OpenSSL 0.9.8m:
+
+ o Cipher definition fixes.
+ o Workaround for slow RAND_poll() on some WIN32 versions.
+ o Remove MD2 from algorithm tables.
+ o SPKAC handling fixes.
+ o Support for RFC5746 TLS renegotiation extension.
+ o Compression memory leak fixed.
+ o Compression session resumption fixed.
+ o Ticket and SNI coexistence fixes.
+ o Many fixes to DTLS handling.
+
+ Major changes between OpenSSL 0.9.8k and OpenSSL 0.9.8l:
+
+ o Temporary work around for CVE-2009-3555: disable renegotiation.
+
+ Major changes between OpenSSL 0.9.8j and OpenSSL 0.9.8k:
+
+ o Fix various build issues.
+ o Fix security issues (CVE-2009-0590, CVE-2009-0591, CVE-2009-0789)
+
+ Major changes between OpenSSL 0.9.8i and OpenSSL 0.9.8j:
+
+ o Fix security issue (CVE-2008-5077)
+ o Merge FIPS 140-2 branch code.
+
+ Major changes between OpenSSL 0.9.8g and OpenSSL 0.9.8h:
+
+ o CryptoAPI ENGINE support.
+ o Various precautionary measures.
+ o Fix for bugs affecting certificate request creation.
+ o Support for local machine keyset attribute in PKCS#12 files.
+
+ Major changes between OpenSSL 0.9.8f and OpenSSL 0.9.8g:
+
+ o Backport of CMS functionality to 0.9.8.
+ o Fixes for bugs introduced with 0.9.8f.
+
+ Major changes between OpenSSL 0.9.8e and OpenSSL 0.9.8f:
+
+ o Add gcc 4.2 support.
+ o Add support for AES and SSE2 assembly lanugauge optimization
+ for VC++ build.
+ o Support for RFC4507bis and server name extensions if explicitly
+ selected at compile time.
+ o DTLS improvements.
+ o RFC4507bis support.
+ o TLS Extensions support.
+
+ Major changes between OpenSSL 0.9.8d and OpenSSL 0.9.8e:
+
+ o Various ciphersuite selection fixes.
+ o RFC3779 support.
+
+ Major changes between OpenSSL 0.9.8c and OpenSSL 0.9.8d:
+
+ o Introduce limits to prevent malicious key DoS (CVE-2006-2940)
+ o Fix security issues (CVE-2006-2937, CVE-2006-3737, CVE-2006-4343)
+ o Changes to ciphersuite selection algorithm
+
+ Major changes between OpenSSL 0.9.8b and OpenSSL 0.9.8c:
+
+ o Fix Daniel Bleichenbacher forged signature attack, CVE-2006-4339
+ o New cipher Camellia
+
+ Major changes between OpenSSL 0.9.8a and OpenSSL 0.9.8b:
+
+ o Cipher string fixes.
+ o Fixes for VC++ 2005.
+ o Updated ECC cipher suite support.
+ o New functions EVP_CIPHER_CTX_new() and EVP_CIPHER_CTX_free().
+ o Zlib compression usage fixes.
+ o Built in dynamic engine compilation support on Win32.
+ o Fixes auto dynamic engine loading in Win32.
+
+ Major changes between OpenSSL 0.9.8 and OpenSSL 0.9.8a:
+
+ o Fix potential SSL 2.0 rollback, CVE-2005-2969
+ o Extended Windows CE support
+
+ Major changes between OpenSSL 0.9.7g and OpenSSL 0.9.8:
+
+ o Major work on the BIGNUM library for higher efficiency and to
+ make operations more streamlined and less contradictory. This
+ is the result of a major audit of the BIGNUM library.
+ o Addition of BIGNUM functions for fields GF(2^m) and NIST
+ curves, to support the Elliptic Crypto functions.
+ o Major work on Elliptic Crypto; ECDH and ECDSA added, including
+ the use through EVP, X509 and ENGINE.
+ o New ASN.1 mini-compiler that's usable through the OpenSSL
+ configuration file.
+ o Added support for ASN.1 indefinite length constructed encoding.
+ o New PKCS#12 'medium level' API to manipulate PKCS#12 files.
+ o Complete rework of shared library construction and linking
+ programs with shared or static libraries, through a separate
+ Makefile.shared.
+ o Rework of the passing of parameters from one Makefile to another.
+ o Changed ENGINE framework to load dynamic engine modules
+ automatically from specifically given directories.
+ o New structure and ASN.1 functions for CertificatePair.
+ o Changed the ZLIB compression method to be stateful.
+ o Changed the key-generation and primality testing "progress"
+ mechanism to take a structure that contains the ticker
+ function and an argument.
+ o New engine module: GMP (performs private key exponentiation).
+ o New engine module: VIA PadLOck ACE extension in VIA C3
+ Nehemiah processors.
+ o Added support for IPv6 addresses in certificate extensions.
+ See RFC 1884, section 2.2.
+ o Added support for certificate policy mappings, policy
+ constraints and name constraints.
+ o Added support for multi-valued AVAs in the OpenSSL
+ configuration file.
+ o Added support for multiple certificates with the same subject
+ in the 'openssl ca' index file.
+ o Make it possible to create self-signed certificates using
+ 'openssl ca -selfsign'.
+ o Make it possible to generate a serial number file with
+ 'openssl ca -create_serial'.
+ o New binary search functions with extended functionality.
+ o New BUF functions.
+ o New STORE structure and library to provide an interface to all
+ sorts of data repositories. Supports storage of public and
+ private keys, certificates, CRLs, numbers and arbitrary blobs.
+ This library is unfortunately unfinished and unused withing
+ OpenSSL.
+ o New control functions for the error stack.
+ o Changed the PKCS#7 library to support one-pass S/MIME
+ processing.
+ o Added the possibility to compile without old deprecated
+ functionality with the OPENSSL_NO_DEPRECATED macro or the
+ 'no-deprecated' argument to the config and Configure scripts.
+ o Constification of all ASN.1 conversion functions, and other
+ affected functions.
+ o Improved platform support for PowerPC.
+ o New FIPS 180-2 algorithms (SHA-224, -256, -384 and -512).
+ o New X509_VERIFY_PARAM structure to support parametrisation
+ of X.509 path validation.
+ o Major overhaul of RC4 performance on Intel P4, IA-64 and
+ AMD64.
+ o Changed the Configure script to have some algorithms disabled
+ by default. Those can be explicitely enabled with the new
+ argument form 'enable-xxx'.
+ o Change the default digest in 'openssl' commands from MD5 to
+ SHA-1.
+ o Added support for DTLS.
+ o New BIGNUM blinding.
+ o Added support for the RSA-PSS encryption scheme
+ o Added support for the RSA X.931 padding.
+ o Added support for BSD sockets on NetWare.
+ o Added support for files larger than 2GB.
+ o Added initial support for Win64.
+ o Added alternate pkg-config files.
+
+ Major changes between OpenSSL 0.9.7l and OpenSSL 0.9.7m:
+
+ o FIPS 1.1.1 module linking.
+ o Various ciphersuite selection fixes.
+
+ Major changes between OpenSSL 0.9.7k and OpenSSL 0.9.7l:
+
+ o Introduce limits to prevent malicious key DoS (CVE-2006-2940)
+ o Fix security issues (CVE-2006-2937, CVE-2006-3737, CVE-2006-4343)
+
+ Major changes between OpenSSL 0.9.7j and OpenSSL 0.9.7k:
+
+ o Fix Daniel Bleichenbacher forged signature attack, CVE-2006-4339
+
+ Major changes between OpenSSL 0.9.7i and OpenSSL 0.9.7j:
+
+ o Visual C++ 2005 fixes.
+ o Update Windows build system for FIPS.
+
+ Major changes between OpenSSL 0.9.7h and OpenSSL 0.9.7i:
+
+ o Give EVP_MAX_MD_SIZE it's old value, except for a FIPS build.
+
+ Major changes between OpenSSL 0.9.7g and OpenSSL 0.9.7h:
+
+ o Fix SSL 2.0 Rollback, CVE-2005-2969
+ o Allow use of fixed-length exponent on DSA signing
+ o Default fixed-window RSA, DSA, DH private-key operations
+
Major changes between OpenSSL 0.9.7f and OpenSSL 0.9.7g:
o More compilation issues fixed.