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On hidden sums compatible with a given block cipher diffusion layer.
- Source :
-
Discrete Mathematics . Feb2019, Vol. 342 Issue 2, p373-386. 14p. - Publication Year :
- 2019
-
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]
- Subjects :
- *BLOCK ciphers
*ALGORITHMS
*GROUP theory
*CRYPTOGRAPHY
*LATTICE theory
Subjects
Details
- Language :
- English
- ISSN :
- 0012365X
- Volume :
- 342
- Issue :
- 2
- Database :
- Academic Search Index
- Journal :
- Discrete Mathematics
- Publication Type :
- Academic Journal
- Accession number :
- 133187533
- Full Text :
- https://doi.org/10.1016/j.disc.2018.10.003