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What is the size of the key in the algorithm?

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in Cryptograph & Network Security by (60.1k points)
What is the size of the key in the algorithm?

(a) 256 bits

(b) 512 bits

(c) 128 bits

(d) 1024 bits

This question was addressed to me in an international level competition.

Question is taken from Whirlpool Algorithm in portion Message Authentication Codes, Whirlpool Algorithm and Key Management and Distribution of Cryptograph & Network Security

1 Answer

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Best answer
Correct option is (b) 512 bits

Explanation: The size of the key is 512 bits.

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