Question

Which of the following cipher require the use of tabula recta?

(a) hill cipher

(b) route cipher

(c) rail fence cipher

(d) trithemius cipher

I got this question in my homework.

This interesting question is from Cryptography topic in section Cryptography of Data Structures & Algorithms II

Answer 1

The correct answer is (d) trithemius cipher

Explanation: Ciphers like running key cipher, vigenere cipher, trithemius cipher, etc. makes use of tabula recta. Whereas hill cipher, rail fence cipher and route cipher does not require tabula recta for encryption of plain text.