Suppose that the cycling pattern of a polyalphabetic encryption system is M1, M2, M1, M3. Simple Caesar ciphers with shift of 2, 3, and 5 are 3 substitution ciphers. Use the following polyalphabetic cipher table Plaintext: a b c d e f g h i j k l m n o p q r s t u v w x y z

M1 (k=2): y z a b c d e f g h i j k l m n o p q r s t u v w x

M2 (k=3): x y z a b c d e f g h i j k l m n o p q r s t u v w

M3 (k=5): v w x y z a b c d e f g h i j k l m n o p q r s t u

to encrypt the following message: the quick brown fox jumps over the lazy dog