| Baltimore Technologies: Cryptographic security products, including Secure Socket Layer 3 for Java. [commercial] |
| Entrust/Toolkit Java Edition: A Sun JCE compliant Java cryptography library with CA functionality. [Free with Registration] (Entrust) |
| 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 comprehensive set of Java-based crypto products. Java implementation TLS, SSLv3 and SSLv2(client side), S/MIMEv2. [Commercial] |
| J2SSH Maverick: A fully featured SSH2 library. By 3SP LTD. [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] |
| 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] |
| logi.crypto: Formerly Cryptonite, a pure java package for strong cryptography. It supplies RSA (usable outside of North America), DES, Triple-DES implementation as well as other utility classes. [Open Source, GPL/Commercial] |
| Network Security Services for Java (JSS): Libraries used internally by Netscape and iPlanet products that do crypto in Java. [Mozilla] |
| QuartzLight in Java: Public key signature system QuartzLight [Open Source, GPL]. |
| RSA BSAFE: Toolkits for SSL, general cryptography, and PKI. [Commercial] |
| The PC1 Encryption Algorithm: The source code of the 128-bit PC1 cipher algorithm in Java. |