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The Plaintext for the Ciphertext 10100101, given that the key is 0010010111 is

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The Plaintext for the Ciphertext 10100101, given that the key is 0010010111 is

(a) 01100111

(b) 00110110

(c) 01001000

(d) 01001100

This question was posed to me by my college director while I was bunking the class.

This question is from The Simplified Data Encryption Standard (SDES) in portion Block Ciphers and the Data Encryption Standard of Cryptograph & Network Security

1 Answer

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Best answer
Correct choice is (b) 00110110

The explanation is: Perform the SDES Decryption algorithm and compute the cipher text.

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