Question

Which of the following is not a type of mono alphabetic cipher?

(a) additive cipher

(b) multiplicative cipher

(c) afffine cipher

(d) hill cipher

I got this question in a national level competition.

My query is from Cryptography topic in section Cryptography of Data Structures & Algorithms II

Answer 1

The correct option is (d) hill cipher

The best explanation: In mono alphabetic cipher each symbol of plain text is replaced by a particular respective symbol in the cipher text. There are three types of mono alphabetic ciphers- additive, multiplicative and affine.