Secure Hardware Implementation of Nonlinear Functions in the Presence of Glitches

Nikova, Svetla and Rijmen, Vincent and Schläffer, Martin (2010) Secure Hardware Implementation of Nonlinear Functions in the Presence of Glitches. Journal of Cryptology . ISSN 0933-2790

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Abstract:	Hardware implementations of cryptographic algorithms are vulnerable to side-channel attacks. Side-channel attacks that are based on multiple measurements of the same operation can be countered by employing masking techniques. Many protection measures depart from an idealized hardware model that is very expensive to meet with real hardware. In particular, the presence of glitches causes many masking techniques to leak information during the computation of nonlinear functions. We discuss a recently introduced masking method which is based on secret sharing and multi-party computation methods. The approach results in implementations that are provably resistant against a wide range of attacks, while making only minimal assumptions on the hardware. We show how to use this method to derive secure implementations of some nonlinear building blocks for cryptographic algorithms. Finally, we provide a provable secure implementation of the block cipher Noekeon and verify the results by means of low-level simulations.
Item Type:	Article
Copyright:	© 2010 Springer
Faculty:	Electrical Engineering, Mathematics and Computer Science (EEMCS)
Research Group:	Distributed and Embedded Systems (DIES)
Link to this item:	http://purl.utwente.nl/publications/75135
Official URL:	http://dx.doi.org/10.1007/s00145-010-9085-7
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