Question

_____________ is the concept that tells us about the replacement of every alphabet by another alphabet and the entire series gets ‘shifted’ by some fixed quantity.

(a) Rolling Cipher

(b) Shift Cipher

(c) Playfair Cipher

(d) Block Cipher

I got this question by my school teacher while I was bunking the class.

Asked question is from Cryptography in chapter Cryptography in Security of Cyber Security

Answer 1

Correct option is (b) Shift Cipher

For explanation I would say: Shift Cipher is the concept that tells us about the replacement of every alphabet by another alphabet and the entire series gets ‘shifted’ by some fixed quantity (which is the key) between 0 and 25.