1.
Planning for Pki Best Practices Guide for Deploying Public Key Infrastructure
by Housley, Russ, Polk, Tim
ISBN: 9780471397021
List Price: $80.00
2.
Implementing Email and Security Tokens: Current Standards, Tools, and Practices
by Turner, Sean, Housley, Russ
ISBN: 9780470254639
List Price: $55.00