Information Security Course. DES

1. One round version of DES

Input: K(key):hexadecimal0123456789ABCDEF

Binary 0000 0001 0010 0011 0100 0101 0110 0111 1000 1001 1010 1011 1100 1101 1110 1111

T(plaintext):FEDCBA9876543210

Perform a round of encryption and write down the

resulting ciphertext

(Describe all of the intermediate steps to derive the result)

Please do it step by step.

" use one round and derive the first round key then give the answer "

The cipher text should be in binary .