See also:

• Computers: Hacking: Cryptography  (27)
• Computers: Programming: Languages: Java: Security  (17)
• Science: Math: Applications: Communication Theory: Cryptography: Programming Libraries  (30)

• FlexiCrypt - Crypto toolkit based on FlexiProvider.
• FlexiProvider - An open source cryptographic class library for the JCA/JCE architecture. [Open Source with registration]
• Hidden Field Equations (HFE) in Java - Java implementation of the public key cryptosystem Hidden Field Equations (HFE). Also includes matrix and finite field operations. [Open source, GPL]
• IAIK Java Crypto Products - Provides a set of Java-based crypto products. Java implementation TLS, SSLv3 and SSLv2(client side), S/MIMEv2. [Commercial]
• Java Cryptography Extension (JCE) - Provides framework and implementations for encryption, key generation and key agreement, and Message Authentication Code (MAC) algorithms.
• JSDSI - Reimplemented the Java SDSI (Simple Distributed Security Infrastructure) API. [Open source, MIT License]
• J2SSH Maverick - A fully featured SSH2 library. By 3SP LTD. [Commercial]
• Legion of The Bouncy Castle - Provides open source implentations of the Java Cryptography Extension 1.2.1, and a lightweight Java Cryptography API for the J2ME, and the JDK. [Open Source]
• Network Security Services for Java (JSS) - Libraries used internally by Netscape and iPlanet products that do crypto in Java. [Mozilla]
• The PC1 Encryption Algorithm - The source code of the 128-bit PC1 cipher algorithm in Java.
• QuartzLight in Java - Public key signature system QuartzLight [Open Source, GPL].
• RSA BSAFE - Toolkits for SSL, general cryptography, and PKI. [Commercial]