PKI Fundamentals:

a. Explain the relationship between a digital certificate and an RSA public/private key pair.

b. Public key infrastructure (PKI) relies on a chain of trust to ensure that a particular certificate can be trusted. All certificate chains are anchored to a root certificate that is issued by a root certificate authority. If the root certificate authority is trusted by the client, then all certificates 2 signed by that certificate authority (either directly or indirectly) will be trusted. Explain how a client comes to trust one of the many root certificate authorities?

c. List the two main methods of revoking certificates and briefly describe how each method works.