Before you deploy your mail system for S/MIME, be sure you are familiar with these concepts:
Basic administrative procedures of your platform
Structure and use of an LDAP directory
Addition or modification of entries in an LDAP directory
Configuration process for Sun Java System Directory Server
Concepts and purpose of the following:
Secure Socket Layer (SSL) for a secured communications line
Digitally signed email messages
Encrypted email messages
Local key store of a browser
Smart cards and the software and hardware to use them
Private-public key pairs and their certificates
Certificate authorities (CA)
Verifying keys and their certificates
Certificate revocation list (CRL)