One desirable property of a stream cipher is that the ciphertext be ofthe same length as the plaintext.

Question

Quizplus · Accepted Answer

A stream cipher generates a keystream which is combined with the plaintext to produce the ciphertext in a bitwise XOR operation. Since the keystream is generated in real time and is the same length as the plaintext, the resulting ciphertext will also be of the same length as the plaintext. Therefore, the statement is true.

One Desirable Property of a Stream Cipher Is That the Ciphertext