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The Plaintext for the Ciphertext 00100010, given that the key is 1111111111 is

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The Plaintext for the Ciphertext 00100010, given that the key is 1111111111 is

(a) 01100111

(b) 00001010

(c) 01001000

(d) 01001100

I had been asked this question during an interview for a job.

My query is from The Simplified Data Encryption Standard (SDES) in section Block Ciphers and the Data Encryption Standard of Cryptograph & Network Security

1 Answer

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Best answer
Correct option is (d) 01001100

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

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