Paper 2014/954
Algebraic Fault Analysis of Katan
Frank Quedenfeld
Abstract
This paper presents a new and more realistic model for fault attacks and statistical and algebraic techniques to improve fault analysis in general. Our algebraic techniques is an adapted solver for systems of equations based on ElimLin and XSL. We use these techniques to introduce two new fault attacks on the hardware oriented block cipher Katan32 from the Katan family of block ciphers. We are able to break full Katan using $4$ faults and $2^{29.04}$ Katan evaluations with a theoretical statistical fault attack and $7.19$ faults in $2^{27.2}$ Katan evaluations with a tested algebraic one. This is a great improvement over the existing fault attacks which need $115$ and $140$ faults respectively. Furthermore, our algebraic attack can be executed on a normal computer.
Metadata
- Available format(s)
-
PDF
- Publication info
- Preprint. MINOR revision.
- Keywords
- KatanElimLinequation solving over $\F_2$fault analysisalgebraic fault attackfilter for improved guessingdifferential fault attack
- Contact author(s)
- frank quedenfeld @ googlemail com
- History
- 2014-11-25: received
- Short URL
- https://ia.cr/2014/954
- License
-
CC BY
BibTeX
@misc{cryptoeprint:2014/954,
author = {Frank Quedenfeld},
title = {Algebraic Fault Analysis of Katan},
howpublished = {Cryptology {ePrint} Archive, Paper 2014/954},
year = {2014},
url = {https://eprint.iacr.org/2014/954}
}
