Add digital signatures to PDF documents - GUI and CLI, cross-platform
MToken - Tokens processing system (Security)
Implementation of the EDIINT AS2 protocol (RFC 4130)
Encrypt and manage secret text data
Decrypt encryptions without knowing the key or cipher
Encrypt and decrypt text using AES 256 bit encryption
inKey - small & strong encryption utility (> 800 000 bit).
Cracker-ng is a multiple file password finder.