Crypto toolkit based on FlexiProvider.

Java implementation of the public key cryptosystem Hidden Field Equations (HFE). Also includes matrix and finite field operations. [Open source, GPL]

Provides a set of Java-based crypto products. Java implementation TLS, SSLv3 and SSLv2(client side), S/MIMEv2. [Commercial]

Provides framework and implementations for encryption, key generation and key agreement, and Message Authentication Code (MAC) algorithms.

Reimplemented the Java SDSI (Simple Distributed Security Infrastructure) API. [Open source, MIT License]

Provides open source implementations of the Java Cryptography Extension 1.2.1, and a lightweight Java Cryptography API for the J2ME, and the JDK. [Open Source]

Public key signature system QuartzLight [Open Source, GPL].