Question

Which of the following is true about encryption in gronsfeld cipher?

(a) It replaces letters with numbers

(b) It shifts the letters of plain text on the basis of key value

(c) It makes substitutions by using tabula recta

(d) It makes substitutions on the basis of a mathematical formula

I have been asked this question in final exam.

I would like to ask this question from Cryptography topic in portion Cryptography of Data Structures & Algorithms II

Answer 1

The correct answer is (b) It shifts the letters of plain text on the basis of key value

The best explanation: Encryption of plain text in gronsfeld cipher is done by shifting the letters of plain text on the basis of key value. So it is similar to caesar cipher.