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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)
- 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 attackscountermeasuresrandom delays
- Contact author(s)
- ilya kizhvatov @ uni lu
- History
- 2009-09-01: received
- Short URL
- https://ia.cr/2009/419
- License
-
CC BY