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.
A cross-platform application for displaying and navigating events on a timeline.
A flexible one time password authentication system with pluggable OTP algorithms and userstorages.