Question

What is the alternative name given to Rail fence cipher?

(a) random cipher

(b) matrix cipher

(c) zig zag cipher

(d) columnar cipher

This question was posed to me in homework.

My doubt is from Cryptography topic in chapter Cryptography of Data Structures & Algorithms II

Answer 1

Right answer is (c) zig zag cipher

The best explanation: Rail fence cipher is also known as zig zag cipher. It is so because the plain text gets ciphered by arranging the letters in a zig zag fashion.