CompTIA CASP+ CAS-004 Certification Guide

Chapter 12: Implementing Appropriate PKI Solutions, Cryptographic Protocols, and Algorithms for Business Needs

Public key infrastructure (PKI) is of vital importance to any size organization and becomes a necessity for a large enterprise. PKI gives an organization the tools to verify and provide authentication for keys that will be used to secure the data. Without PKI we cannot use encryption keys, as the authenticity of keys cannot be verified. When a key pair is generated, we need to assign a trustworthy signed certificate to the unique public key, in a similar fashion to a passport that is generated for a trustworthy citizen. Without PKI, we cannot use online banking, e-commerce, smart cards, or virtual private networks (VPNs) with any assurance. ...