mystic-crypt is designed as a Java library that can be used for simple and complex encryption and decryption.
The sourcecode for the library is available under https://github.com/astrapi69/mystic-crypt
For demonstration what the library can do there is a graphical client:
The sourcecode for the ui is available under https://github.com/astrapi69/mystic-crypt-ui
Commons-SSH is a thin bridge between different Java SSH implementations libraries. It doesn't contain any crypto-related code and created to be used by projects who doesn't want to care about export control regulations (let client to decide)