Download OpenSSL 1.0

OpenSSL has arrived at version 1.0. OpenSSL is an open source implementation of the transport layer security (tls) protocols and their predecessors, the secure sockets layer (ssl) protocols. These protocols are used to secure connections over the local network or the Internet by means of encryption. The most important changes in this release are listed below:

The most significant changes are:

• RFC3280 path validation: sufficient to process PKITS tests.
• Integrated support for PVK files and keyblobs.
• Change default private key format to PKCS#8.
• CMS support: able to process all examples in RFC4134
• Streaming ASN1 encode support for PKCS#7 and CMS.
• Multiple signer and signer add support for PKCS#7 and CMS.
• ASN1 printing support.
• Whirlpool hash algorithm added.
• RFC3161 time stamp support.
• New generalized public key API supporting ENGINE based algorithms.
• New generalized public key API utilities.
• New ENGINE supporting GOST algorithms.
• SSL/TLS GOST cipher suite support.
• PKCS#7 and CMS GOST support.
• RFC4279 PSK cipher suite support.
• Supported points format extension for ECC cipher suites.
• ecdsa-with-SHA224/256/384/512 signature types.
• dsa-with-SHA224 and dsa-with-SHA256 signature types.
• Opaque PRF Input TLS extension support.
• Updated time routines to avoid OS limitations.