Paper 2003/237
Low-Cost Solutions for Preventing Simple Side-Channel Analysis: Side-Channel Atomicity
Benoit Chevallier-Mames, Mathieu Ciet, and Marc Joye
Abstract
This paper introduces simple methods to convert a cryptographic algorithm into an algorithm protected against simple side-channel attacks. Contrary to previously known solutions, the proposed techniques are not at the expense of the execution time. Moreover, they are generic and apply to virtually any algorithm. In particular, we present several novel exponentiation algorithms, namely a protected square-and-multiply algorithm, its right-to-left counterpart, and several protected sliding-window algorithms. We also illustrate our methodology applied to point multiplication on elliptic curves. All these algorithms share the common feature that the complexity is globally unchanged compared to the corresponding unprotected implementations.
Metadata
- Available format(s)
-
PDF
PS
- Category
- Implementation
- Publication info
- Published elsewhere. Unknown where it was published
- Keywords
- Cryptographic algorithmsside-channel analysisprotected implementationsatomicityexponentiationelliptic curves
- Contact author(s)
- marc joye @ gemplus com
- History
- 2003-11-12: revised
- 2003-11-12: received
- See all versions
- Short URL
- https://ia.cr/2003/237
- License
-
CC BY
BibTeX
@misc{cryptoeprint:2003/237,
author = {Benoit Chevallier-Mames and Mathieu Ciet and Marc Joye},
title = {Low-Cost Solutions for Preventing Simple Side-Channel Analysis: Side-Channel Atomicity},
howpublished = {Cryptology {ePrint} Archive, Paper 2003/237},
year = {2003},
url = {https://eprint.iacr.org/2003/237}
}
