CryptoDB
A New Approach to Counteract DPA Attacks on Block Ciphers
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| Abstract: | Since the publication of Differential Power Analysis (DPA) in 1998, many countermeasures have been published to counteract this very efficient kind of attacks. All these countermeasures follow the same approach : they try to make sensitive operations uncorrelated with the input. Such a method is very costly in terms of both timing and memory space. In this paper, we suggest a new approach where block ciphers are designed to inherently thwart DPA attacks. The idea we develop in this paper is based on a theoretical analysis of DPA attacks and it essentially consists in embedding existing iterated block ciphers in a secure layer. We analyse the security of our proposal and we show that it induces very small overheads. |
BibTeX
@misc{eprint-2005-12674,
title={A New Approach to Counteract DPA Attacks on Block Ciphers},
booktitle={IACR Eprint archive},
keywords={Countermeasure, Power Analysis, Block ciphers, Smart cards, S-boxes.},
url={http://eprint.iacr.org/2005/340},
note={ c.giraud@oberthurcs.com 13075 received 19 Sep 2005, last revised 27 Sep 2005, withdrawn 19 Oct 2005},
author={Christophe Giraud and Emmanuel Prouff},
year=2005
}