AWS Encryption SDK for C
A dead simple tool to sign files and verify digital signatures
Open source disk encryption with strong security for the Paranoid
Encrypted volumes through command line
IPsec / IKEv2-based VPN software for Linux.
PKCS#11 logging proxy module
NCrypted - simple file encryption software with GPU support
Go to github.com/vlm/asn1c for the latest version.
A free "on-the-fly" transparent disk encryption program for PC & PDAs.
Lite Security Module: a daemon to handle PKCS11 Secure Boxes