Problem 12E

Let X and Y be the outcomes when a pair of fair eight-sided dice is rolled. Let W = X + Y. How should the faces of the dice be numbered so that W has a uniform distribution on 0, 1, . . . , 15?

Leslie Ogu CSCI 4531 09/20/2016 Chapter 20 Continued Type of Attack Known to Cryptanalyst Ciphertext only ● Encryption algorithm ● Ciphertext to be decoded Known plaintext ● Encryption algorithm ● Ciphertext to be decoded ● One or more plaintextciphertext pairs formed with the secret key Chosen plaintext ● Encryption algorithm ● Ciphertext to be decoded ● Plaintext message chosen by cryptanalyst,