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CCNA Security 640-554 Official Cert Guide by Scott Morris, Keith Barker

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Chapter 18. Fundamentals of the Public Key Infrastructure

This chapter covers the following subjects:

Public key infrastructure

Putting the pieces of PKI to work

The public key infrastructure (PKI) is a combination of policies, procedures, hardware, software, and people that are required to create, manage, and revoke (when necessary) digital certificates. Similar to the concept of how a driver of a car can receive a license to drive, and that license because it is issued from a trusted agency can be used by others to validate the identity of the person who has the license, an identity digital certificate, issued by a trusted certificate authority (CA), can provide similar functionality in the digital world of networking.

On a bigger scale, ...

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