One round version of DES Input: K (key): hexadecimal 0 1 2 3 4 5 6 7 8 9 A B C D E F Binary 0000 0001 0010 0011 0100 0101 0110 0111 1000 1001 1010 1011 1100 1101 1110 1111 T (plaintext): F E D C B A 9 8 7 6 5 4 3 2 1 0 Perform a round of encryption and writedown the resulting ciphertext (Describe all of the intermediate steps to derive the result) 2. Show that DES decryption is, in fact, the inverse of DES encryption Please write down in detail don't write a cursive letter Thank you