A dead simple tool to sign files and verify digital signatures
Open source disk encryption with strong security for the Paranoid
A "XOR-based" data encryption tool.
Hidding any binary flle < 64k in image
One-time-pad encryption using a virtual pad
Crypt encryption and decryption is based on ASCII Table Shift.
Programa de Criptografia.
Free fast implementation of tiger and the TTH algorithms
A cryptocurrency like Bitcoin improved upon with reality binding.
mod_gnutls apache module
A free "on-the-fly" transparent disk encryption program for PC & PDAs.