An Efficient Method for Random Delay Generation in Embedded Software

Jean-Sébastien Coron; Ilya Kizhvatov

Paper 2009/419

An Efficient Method for Random Delay Generation in Embedded Software

Jean-Sébastien Coron and Ilya Kizhvatov

Abstract

Random delays are a countermeasure against a range of side channel and fault attacks that is often implemented in embedded software. We propose a new method for generation of random delays and a criterion for measuring the efficiency of a random delay countermeasure. We implement this new method along with the existing ones on an 8-bit platform and mount practical side-channel attacks against the implementations. We show that the new method is significantly more secure in practice than the previously published solutions and also more lightweight.

Metadata

Available format(s): PDF
Category: Implementation
Publication info: Published elsewhere. This is an updated version of the paper that will appear in the proceedings of CHES 2009
Keywords: side channel attacks countermeasures random delays
Contact author(s): ilya kizhvatov @ uni lu
History: 2009-09-01: received
Short URL: https://ia.cr/2009/419
License: CC BY

BibTeX

@misc{cryptoeprint:2009/419,
      author = {Jean-Sébastien Coron and Ilya Kizhvatov},
      title = {An Efficient Method for Random Delay Generation in Embedded Software},
      howpublished = {Cryptology {ePrint} Archive, Paper 2009/419},
      year = {2009},
      url = {https://eprint.iacr.org/2009/419}
}