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MAC is a

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in Cryptograph & Network Security by (60.0k points)
MAC is a

(a) one-to-one mapping

(b) many-to-one mapping

(c) onto mapping

(d) none of the mentioned

The question was posed to me during a job interview.

My query is from Message Authentication Codes (MACs) topic in section Message Authentication Codes, Whirlpool Algorithm and Key Management and Distribution of Cryptograph & Network Security

1 Answer

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Right option is (b) many-to-one mapping

The explanation: MACs are many to one mapping, which makes it tougher for the intruder for cryptanalysis.

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