Cryptanalysis of PMACx, PMAC2x, and SIVx

IACR Cryptology ePrint Archive, Volume 2017, Issue 2, 2017.

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Abstract:

At CT-RSA 2017, List and Nandi proposed two variable input length pseudorandom functions (VI-PRFs) called PMACx and PMAC2x, and a deterministic authenticated encryption scheme called SIVx. These schemes use a tweakable block cipher (TBC) as the underlying primitive, and are provably secure up to the query complexity of 2n, where n denotes...More

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