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Published in:
2007 | OriginalPaper | Chapter
Efficient Use of Random Delays in Embedded Software
Authors : Michael Tunstall, Olivier Benoit
Published in: Information Security Theory and Practices. Smart Cards, Mobile and Ubiquitous Computing Systems
Publisher: Springer Berlin Heidelberg
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Random delays are commonly used as a countermeasure to hinder side channel analysis and fault attacks in embedded devices. This paper proposes a different manner of generating random delays, that increases the desynchronisation compared to random delays whose lengths are uniformly distributed. It is also shown that it is possible to reduce the time lost due to the inclusion of random delays, while maintaining the increased desynchronisation.