Question

Certificate extensions fall into 3 categories. Which one of the following is not a Certificate extensions category?

(a) Subject and Issuer attributes

(b) Key and Policy information

(c) Certification path constraints

(d) All of the above are Certificate extensions categories

This question was posed to me by my college director while I was bunking the class.

My query is from Public Keys and X.509 Certificates-III topic in division Message Authentication Codes, Whirlpool Algorithm and Key Management and Distribution of Cryptograph & Network Security

Answer 1

Correct option is (d) All of the above are Certificate extensions categories

To explain: Subject and Issuer attributes, Key and Policy information and Certification path constraints are the three categories of Certificate extensions.