In terms of diffusion and confusion, which of them are satisfied (or not satisfied) by Vigenere cipher and DES? Explain Briefly. (Hint: Diffusion means that each letter in the ciphertext depends on many letters in the plaintext, and vice versa. Equivalently, well, a bit more precisely, changing one letter in the plaintext changes the ciphertext completely, in an almost random-like fashion. Confu the same relation, just between the key and the ciphertext.)