EasySSL is a library that can establish an SSL/TLS connection
jFileCrypt encrypts and decrypts files
ISC lets you encrypt & decrypt text and files of any type up to 4GB
NiseCrypt is free encryption software
software cryptographic data protection
A secure Jabber-client for Android using strong encryption
SSL Strength Evaluation and Test Utility
UDP based secure file transfer application written in JAVA.
Substitution cipher toolkit (en/decryption + automatical cracking)
My personal version of OpenCL Scrypt tunned for my own video card.
Fileprivacy easily encrypts your files
Java code that enables you to sign documents using a smart card.
Fixed-length Arithmetic-types library
Simple application to encrypt and decrypt strings
A simple example of polyalphabetic cipher in Java.