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Using Differential Crypt-analysis, the minimum computations required to decipher the DES algorithm is

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Using Differential Crypt-analysis, the minimum computations required to decipher the DES algorithm is

(a) 2^56

(b) 2^43

(c) 2^55

(d) 2^47

I got this question during an online exam.

Question is from The Data Encryption Standard (DES) and It’s Strength topic in division Block Ciphers and the Data Encryption Standard of Cryptograph & Network Security

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The correct choice is (d) 2^47

Best explanation: Differential Crypt-analysis requires only 2^47 computations to decipher the DES algorithm.

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