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1 results on '"Sala, Massimiliano"'

1. On hidden sums compatible with a given block cipher diffusion layer.

Author

Brunetta, Carlo, Calderini, Marco, and Sala, Massimiliano

Subjects
*BLOCK ciphers, *ALGORITHMS, *GROUP theory, *CRYPTOGRAPHY, *LATTICE theory
Abstract

Abstract Sometimes it is possible to embed an algebraic trapdoor into a block cipher. Building on previous research, in this paper we investigate an especially dangerous algebraic structure, which is called a hidden sum and which is related to some regular subgroups of the affine group. Mixing group theory arguments and cryptographic tools, we pass from characterizing our hidden sums to designing an efficient algorithm to perform the necessary preprocessing for the exploitation of the trapdoor. [ABSTRACT FROM AUTHOR]

Published
2019
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