OpenVPN is a robust and highly flexible tunneling application that uses all of the encryption, authentication, and certification features of the OpenSSL library to securely tunnel IP networks over a single TCP/UDP port.
Discussion forums and project wiki can be found here:
https://forums.openvpn.net/
http://community.openvpn.net/openvpn
The OpenCA PKI Development Project is a collaborative effort to develop a robust, full-featured and Open Source out-of-the-box Certification Authority implementing the most used protocols with full-strength cryptography world-wide.
mod_gnutls uses the GnuTLS library to provide SSL 3.0, TLS 1.0, TLS 1.1 and 1.2 encryption for Apache HTTPD. It is similar to mod_ssl in purpose, but does not use OpenSSL.
SPipe (Secure Pipe) is a patch of mod_ssl package which allows the same corporate web server to be used as a secure access door to internal servers that do not use HTTPS protocol, while also retaining normal web server functionality for all HTTP requests
mod_stego is a module for the popular Apache Web Server. It steganograph a file or a message inside the html pages. If you want the message, you should use a a de-steganography software to take it out.