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Using SDES, the Plaintext for the Ciphertext 00001111, given that the key is 1111111111 is,

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Using SDES, the Plaintext for the Ciphertext 00001111, given that the key is 1111111111 is,

(a) 01100111

(b) 00001010

(c) 11111111

(d) 01101101

I have been asked this question in homework.

The query is from Overview topic in division Cryptography Overview, TCP/IP and Communication Networks of Cryptograph & Network Security

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Correct option is (c) 11111111

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

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