PKI - Public Key Infrastructure

Public Key Infrastructure (PKI) is a comprehensive system that manages digital keys and certificates to secure communication, authentication, and data integrity in a networked environment. PKI relies on asymmetric cryptography, involving the use of public and private key pairs, and includes components such as Certificate Authorities (CAs), registration authorities, certificate policies, and various protocols for key and certificate management.

The Security+ exam may cover fundamental concepts of PKI, including its components, digital certificates, asymmetric cryptography, and its applications in securing communication and authentication. Understanding the roles of CAs, RAs, and the certificate lifecycle is crucial for the exam.  



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