Simple and easy to use Java application to encrypt your files
Java Library to generate license for your application.
Kerberized Messaging Toolkit for Java
textcrypter is an encryption tool using vigenere cipher algorithm
rsa-elgamal comparison
A tool to verify and generate MD5,SHA,CRC32 hash of multiple files
NTRUEncrypt and NTRUSign in Java
TCP/IP API (SSL Encryption, ZLIB Compression)
Easily calculate hash values.
jCryption implementation for Java.