Question

One of the simplest and best known polyalphabetic ciphers is _________ cipher. In this scheme, the set of related monoalphabetic substitution rules consists of the 26 Caesar ciphers with shifts of 0 through 25. Each cipher is denoted by a key letter which is the ciphertext letter that substitutes for the plaintext letter a.

Answer 1

Vigenere

Step-by-step explanation:

Vigenere Cipher is an encryption method of alphabetic symbols that utilizes an easy form of polyalphabetic exchange which is carried out through Vigenere table.

Hence, in this situation, the correct answer is VIGENERE Cipher because it is the form of cipher whereby the set of related monoalphabetic substitution rules comprises of the 26 Caesar ciphers with shifts of 0 through 25. Each cipher is indicated by a key letter which is the ciphertext letter that substitutes for the plaintext letter.