On Hidden Sums Compatible with A Given Block Cipher Diffusion Layer
Group Theory
2018-10-04 v2
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.
Cite
@article{arxiv.1702.08384,
title = {On Hidden Sums Compatible with A Given Block Cipher Diffusion Layer},
author = {Carlo Brunetta and Marco Calderini and Massimiliano Sala},
journal= {arXiv preprint arXiv:1702.08384},
year = {2018}
}
Comments
arXiv admin note: text overlap with arXiv:1702.00581