Improved Masking for Tweakable Blockciphers with Applications to Authenticated Encryption

Abstract

A popular approach to tweakable blockcipher design is via masking, where a certain primitive (a blockcipher or a permutation) is preceded and followed by an easy-to-compute tweak-dependent mask. In this work, we revisit the principle of masking. We do so alongside the introduction of the tweakable Even-Mansour construction MEM. Its masking function combines… (More)
DOI: 10.1007/978-3-662-49890-3_11

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