What is a X.509 certificate?

1. In the context of Kerberos, what is a principal?

2. What are the ingredients of a authentication server’s ticket? Explain the significance of each.

3. List the environmental shortcomings and technical deficiencies of Kerberos version 4.

4. What is a public-key certificate?

5. What is a X.509 certificate?

6. Why is it sometimes desirable to revoke an X.509 certificate before it expires?


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