Given: Ciphertext = EC HEX and Sub Key K1 = 10111110
Compute the Plaintext for S-DES one round through the following main steps as below.
Find out O/PS of: IP – E/P – XOR1 – Plaintext
Hint:
- IP = 26314857
- P10 = 35274101986
- E/P = 41232341
- P8 = 637485109
- P4 = 2431
-

Question

Given: Ciphertext = EC HEX and Sub Key K1 = 10111110  
 Compute the Plaintext for S-DES one round through the following main steps as below. 
  Find out O/PS of:  IP – E/P – XOR1 – Plaintext 
   Hint: 
 - IP = 26314857 
 - P10 = 35274101986 
 - E/P = 41232341  
 - P8  = 637485109 
 - P4  = 2431 
 -

Answer

1111 0011 - 0001 0100 – 1010 1010 – 1111 0010

Answer

1111 0010 - 0001 0100 – 1010 1010 – 0110 1100

Answer

1110 0010 - 0001 0100 – 1010 1010 – 1110 1100

Answer

0110 1100 – 0001 0100 - 1011 1110 – 1110 1100

Crowdly

Given: Ciphertext = EC HEX and Sub Key K1 = 10111110 Compute the Plaintext fo...

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