Bug-fix-only libev port of shadowsocks
Complete and free implementation of the OpenPGP standard
Extremely fast non-cryptographic hash algorithm
Open source disk encryption with strong security for the Paranoid
Encrypted volumes through command line
High Security Encrypting File System
A family of small-state CSPRNGs and Stream Ciphers
A family of FLEA-inspired CSPRNGs and Stream Ciphers
SES brings back the uncrackable onetime pad, with a digital twist.
A free "on-the-fly" transparent disk encryption program for PC & PDAs.