Free portable cross-platform graphical multi-user password manager
Encrypt and manage secret text data
Provides encryption & password hashing for your app or Hibernate POJOs
Mkpass - Command line Secure Password Generator
GMR digital signature system
Compiled into a single .jar file. Tiny Password Manager. Portable
Anoncrypt-Text Encryption and Decryption Website in Java(Struts2)
Replace text with POS equivalent text, in a reversible fashion.
Java code for signing and handling Croatian fiscal service requests
A simple example of polyalphabetic cipher in Java.
A cryptocurrency like Bitcoin improved upon with reality binding.