Questions tagged [output-size]

Output size refers to the output size of specific cryptographic functions. It is especially relevant when the output must fit into a resource constrained system or protocol. For signatures it is the signature size, for KEM schemes it is the size of the encapsulated key.

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Has reducing MAC size and increasing message size the same effect on security?

I am evaluating ways to reduce the overhead of (H)MACs on small messages. I was primarily wondering if there is a difference between halving the MAC length or keeping the same MAC length but using it ...
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