Question

Publicly Available directory is more secure than which other system?

(a) Public-Key Certificates

(b) Public announcements

(c) Public-Key authority

(d) None of the mentioned

I had been asked this question by my college director while I was bunking the class.

Asked question is from Public Keys and X.509 Certificates-I in section Message Authentication Codes, Whirlpool Algorithm and Key Management and Distribution of Cryptograph & Network Security

Answer 1

Right answer is (b) Public announcements

The best I can explain: Publicly Available directory is more secure than Public announcements.