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Digital ID Introduction - http://www.verisign.com/support/tlc/per/whitepaper.htm
Introductory level overview of digital certificates. |
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Handbook of Applied Cryptography - http://www.cacr.math.uwaterloo.ca/hac/
Introduction to the practical aspects of conventional and public-key cryptography. (PDF and Postscript sample chapters) |
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Wikipedia: X.509 - http://en.wikipedia.org/wiki/X.509
Encyclopedia article about the ITU-T standard for a public key infrastructure. Includes history, certificate details, and references. |
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X.509 Style Guide - http://www.cs.auckland.ac.nz/~pgut001/pubs/x509guide.txt
Document by Peter Gutmann intended as a set of implementation notes and guidelines for developers. |
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RFC 4158: Internet X.509 Public Key Infrastructure: Certification Path Building - http://tools.ietf.org/html/rfc4158
Provides guidance and recommendations to developers building X.509 public-key certification paths within their applications. |