Gartner Research

Public-Key Infrastructure: Technology Overview

Published: 20 May 2003

ID: G0090693

Analyst(s): Kristen Noakes-Fry


Public-key infrastructure (PKI) issues and manages certificates for authentication, signatures and encryption. Questions of interoperability, cross-certification and untested laws remain unresolved.

Table Of Contents
  • Technology Basics
    • Background
    • Public and Private Keys
    • Elements of a PKI
  • Technology Analysis
    • Business Use
    • Benefits and Risks
    • Standards
    • Price vs. Performance
    • Selection Guidelines
  • Technology Leaders
  • Technology Alternatives
    • Traditional User ID/Password Security
    • Token Systems and Biometrics
    • Browser-Based SSL Technology
  • Insight

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