Question: 1 6 . We mentioned in 5 . 2 . 2 Computing a MAC with a Hash that using MD 4 ( K _ {

16. We mentioned in 5.2.2 Computing a MAC with a Hash that using MD4(K_{AB}|m) as a MAC is not secure. This is not a problem if MD2 is used instead of MD4. Why is that the case?

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