SSL/TLS Library

mod_ssl is an optional module for the Apache HTTP Server. It provides strong cryptography for the Apache v1.3 and v2 webserver via the Secure Sockets Layer (SSL v2/v3) and Transport Layer Security (TLS v1) cryptographic protocols by the help of the Open Source SSL/TLS toolkit OpenSSL.

OpenSSL is a robust commercial-grade and full-featured toolkit for the Transport Layer Security (TLS) and Secure Sockets Layer (SSL) protocols.