Question

Autokey cipher is harder to crack than keyword cipher.

(a) true

(b) false

The question was posed to me in homework.

This key question is from Cryptography topic in chapter Cryptography of Data Structures & Algorithms II

Answer 1

Correct choice is (a) true

The best explanation: Keyword cipher is less secure than Autokey cipher. It is due to the fact that keyword cipher is mono alphabetic and thus can be cracked using frequency analysis. But Autokey cipher being a poly alphabetic cipher cannot be cracked using this method.