gpgkeymgr is a tool for cleaning up and managing your GnuPGP key ring. It removes old and unnecessary keys according to user-specified criteria. For example, you can remove all expired or revoked keys, or all keys you don't trust, and much more.
codecrypt is a GnuPG-like program for encryption and signing that uses only quantum-computer-resistant algorithms.
A portal generator for companies, organizations, or communities.
A GW-BASIC-compatible interpreter.