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How many passes through the plaintext does the CCM require to generate the MAC value?

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How many passes through the plaintext does the CCM require to generate the MAC value?

(a) 2

(b) 3

(c) 4

(d) 5

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This interesting question is from CCM, GCM and Key Wrapping topic in division Message Authentication Codes, Whirlpool Algorithm and Key Management and Distribution of Cryptograph & Network Security

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Right answer is (a) 2

Easy explanation: The CCM requires 2 passes through the plaintext to generate the MAC value.

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