Chapter 25. Understanding the Public Key Infrastructure

Understanding the Public Key Infrastructure

This chapter covers the following topics:

  • Describing the problem of secure, scalable distribution of public keys and presenting PKI as a solution

  • Explaining the concept of a trusted introducer

  • Explaining certificates, CAs, certification paths, certificate trust, and revocation lists

  • Explaining the certificate enrollment procedure

  • Explaining PKI certificate revocation

  • Explaining the use of PKI in existing applications


Cisco CallManager Release 4.0 and later supports many security features that are based on a Public Key Infrastructure (PKI) solution. In earlier releases, ...

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