1. Using the following key for a mono-alphabetic cipher, encode "framingham" and decode "bkhlyucg" Plaintext letter: abc d e fgh ijk1 m nop grstuvwx y z Ciphertext letter: m n b vcx z as dfgh j k1 p oi u y trewq Using the following key and the key pattern C2C1C2C1 for a poly-alphabetic cipher, encrypt "patriots" 2. Plaintext letter: a bcdefghij kl m nopqr st uvw x y z C(k 5) 2lk 19): tghijkimnopqrstuvwxyz abcde 3. Consider the 3-bit block cipher shown in the below table. Encrypt the plaintext 111000101 input iput 100 101 110 oupur ourput 011 010 110 001 010 011 101 100 001 A specific 3bit block cipher