For full, incremental, compressed and encrypted backups or archives
cross-platform (Java) file encryption and archiving tool
Powerful webdav client and sync tools with client-side AES encryption
antigift is simple cross-platform, files & folders encryption tool
yubikey-agent is a seamless ssh-agent for YubiKeys
Easy create and sign x509 certificates and generate RSA key pairs
Multi hash crack suite
Base64 encode (or decode) files of any type with this lightweight tool
Leet is CCEx's software application for on-the-fly encryption (OTFE).
Open Source Security tool to audit hashed passwords.
CrococryptQuerl is a web-based file encryption & transfer tool
Easy to use GlobalPlatform tool (and a Java library)
A tiny, fast encryption tool in C
CryptoDock is a tool that hosts various crypto. algorithms.
a powerful multipurpose checksum utility
Encrypt and decrypt text using AES 256 bit encryption