An article on enabling the Secure Sockets on Tomcat servlet server

A Networking computer article on SSL with client certificates

A piece of software that is a certificate issuer which uses OpenSSL

A Servlet that provides some basic functionality of a certificate authority

An Implementation of the JCE (Java Cryptography Extensions) by a group called the legion of the Bouncycastle

An implementation of the JCE (Java Cryptography Extensions) by Cryptix. Liberal licensing

A website about the Open CA package

The Globus Simple CA package

The apache server with SSL built in, not to be confused with Apache module

Open Implementation of SSL

The Apache SSL module

An Article on how SSL works

Java Almanac examples on javax.security.cert

Java Almanac examples on javax.security.auth.login

Java Almanac examples on java.security

Java Almanac examples on java.security.cert

FAQ's on Java Security topics

A Java world article on constructing networked applications using Certificates

An archived mail message talking about reading client certificates in a Java Servlet

A Java program written to provide a graphical Interface (Swing) for the command line tool Java Keytool. Uses the Bouncy castle cryptography packages and is open source

Security tool, checks for worms, etc. on Windows machines