The following is a list of valuable resources for learning about Java, PKI, and identity management:

• Whoami? The Identity Management Blog -- This is a blog maintained by the developer behind Odyssi CA. It focuses on Java, Identity Management, and general information security topics


• Bastion -- Another blog focusing primarily on Java security and BEA Weblogic


• Legion of the Bouncy Castle -- Makers of an excellent Java cryptography implementation. Odyssi CA's ASN.1 library is derived from their library


• Fedora Directory Server -- An enterprise-class, open-source LDAP directory server. FDS was originally owned by Netscape, but was purchased and open-sourced by Redhat


• CentOS -- A stable and reliable RPM-based Linux distribution, built from sources from a commercial Linux vendor