Suppose Data Encryption Standard (DES) is used to encrypt the following 64-bit block ofplaintext:6 3 F A C 0 D 0 3 4 D 9 F 7 9 3Given the initial 64-bit key is: 1 C 5 8 7 F 1 C 1 3 9 2 4 F E F(1) Derive the first-round subkey, K1, representing in both binary and hexadecimal.
(2) Derive left and right parts of the plaintext, L0, R0, representing in both binary andhexadecimal.
(3) Expand R0 to get E[R0].
(4) Calculate A= E[R0] XOR K1, representing in both binary and hexadecimal.
(5) Group the 48-bit results of (4) into sets of 6 bits and evaluate the corresponding S-boxsubstitutions, representing in both binary and hexadecimal.
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