Enigma Encryption Simulator in Java
Free GUI replacement for Java command-line utilities keytool/jarsigner
cross-platform, encryption application
cross-platform (Java) file encryption and archiving tool
Java application for encryption
Mkpass - Command line Secure Password Generator
A command line interface for encryption and decryption using the NTRU
FinalCrypt - Unbreakable One-Time Pad Encryption
Java Encryption Utility.
Generate file version information
simple and light-weight archive password cracker
Generates Latin squares and counts their transversals
MD5 Checksum Tool
The Remarc Mobile-ID USAT applet
Open Source Security tool to audit hashed passwords.
Easy to use GlobalPlatform tool (and a Java library)
jFileCrypt encrypts and decrypts files
Replace text with POS equivalent text, in a reversible fashion.