Joseph Mauborgne Proposed an Improvement to the Vernam Cipher That

Multiple Choice

Joseph Mauborgne proposed an improvement to the Vernam cipher that uses a random key that is as long as the message so that the key does not need to be repeated.The key is used to encrypt and decrypt a single message and then is discarded.Each new message requires a new key of the same length as the new message.This scheme is known as an) __________ .

A) pascaline
B) one-time pad
C) polycipher
D) enigma