Beyond 2 c/2 Security in Sponge-Based Authenticated Encryption Modes

ADVANCES IN CRYPTOLOGY - ASIACRYPT 2014, PT I, pp. 85-104, 2014.

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The Sponge function is known to achieve 2(c/2) security, where c is its capacity. This bound was carried over to keyed variants of the function, such as SpongeWrap, to achieve a min{2(c/2), 2(kappa)} security bound, with. the key length. Similarly, many CAESAR competition submissions are designed to comply with the classical 2(c/2) securi...More



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