In which cipher method are values rearranged within a block to create the ciphertext?
A) Permutation
B) Vernam
C) Substitution
D) Monoalphabetic

Question

Quizplus · Accepted Answer

Permutation ciphers, also known as transposition ciphers, involve rearranging the positions of the letters or values within a block to create the ciphertext. This is different from substitution ciphers (C) where the letters or values are replaced with different letters or values. The Vernam cipher (B) is a type of one-time pad cipher that uses XOR to encrypt the plaintext, and monoalphabetic (D) substitution ciphers use a fixed substitution of letters or values to create the ciphertext. Therefore, the best choice for this question is A.

In Which Cipher Method Are Values Rearranged Within a Block