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Which is the correct representation for session key recovery for the plain text?(a) D ([Km XOR H], E([Km XOR H], Ks)(b) D([Km XOR H],Ks)(c) D ([Km XOR H], E([Km XOR H])(d) None of the mentionedThis question was posed to me in exam.This intriguing question originated from Symmetric Key Distribution in chapter Message Authentication Codes, Whirlpool Algorithm and Key Management and Distribution of Cryptograph & Network Security

Answer»

The CORRECT answer is (a) D ([Km XOR H], E([Km XOR H], Ks)

Easiest explanation: The correct REPRESENTATION is D([Km XOR H], E([Km XOR H], Ks), to RECOVER the session key.



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