A technique referred to as a __________ is a mapping achieved by performing some sort of permutation on the plaintext letters.
A) transposition cipher
B) polyalphabetic cipher
C) Caesar cipher
D) monoalphabetic cipher

Question

Quizplus · Accepted Answer

A transposition cipher is a method of encryption by which the positions held by units of plaintext (which are commonly characters or groups of characters) are shifted according to a regular system, so that the ciphertext constitutes a permutation of the plaintext. This is different from substitution ciphers, where units of plaintext are replaced with ciphertext according to a fixed system.

A Technique Referred to as a __________ Is a Mapping