The Apache HTTP Server module mod_ssl
provides an interface to the OpenSSL library, which provides Strong Encryption using the Secure Sockets Layer and Transport Layer Security protocols.
Extensive documentation on the directives and environment variables provided by this module is provided in the mod_ssl reference documentation.
© 2016 The Apache Software Foundation
Licensed under the Apache License, Version 2.0.
https://httpd.apache.org/docs/2.4/en/ssl/