jEncrypt is a command line file encryption archiver
Java Library to generate license for your application.
Kerberized Messaging Toolkit for Java
A tool to verify and generate MD5,SHA,CRC32 hash of multiple files
NTRUEncrypt and NTRUSign in Java
Easily calculate hash values.
jCryption implementation for Java.
pythonic kerberosish ticket system: easy to use, easy to subclass