Question

Encryption in beaufort cipher is done using ____________

(a) trithemius table

(b) vigenere cycle

(c) tabula recta

(d) four square table

I had been asked this question during an internship interview.

I need to ask this question from Cryptography in portion Cryptography of Data Structures & Algorithms II

Answer 1

Right answer is (c) tabula recta

Explanation: Encryption of plain text in beaufort cipher is done by making use of tabula recta. The same table is also used for encryption in vigenere cipher and running key cipher.