Revisiting Full-PRF-Secure PMAC and Using It for Beyond-Birthday Authenticated Encryption

Lecture Notes in Computer Science, pp. 258-274, 2017.

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Abstract:

This paper proposes an authenticated encryption scheme, called SIVx, that preserves BBB security also in the case of unlimited nonce reuses. For this purpose, we propose a single-key BBB-secure message authentication code with 2n-bit outputs, called PMAC2x, based on a tweakable block cipher. PMAC2x is motivated by PMAC_TBC1k by Naito; we ...More

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