Further Reading About Public Key and Cryptography
The following discuss certificates, authentication, and associated security issues:
Information about Public-Key Cryptography Standards (PKCS) and other cryptography standards: http://www.rsa.com
Schneier, Bruce. Applied Cryptography, 2d ed. New York: John Wiley & Sons, 1996.
Consultation Committee, International Telephone and Telegraph (CCITT), CCITT, Recommendation X.509, The Directory-Authentication Framework, International Telecommunications Union, Geneva, 1989.
For information about Microsoft® Internet Security Framework, Microsoft CryptoAPI, and other Microsoft security technologies: at http://www.microsoft.com/security