Koblitz curves belong to a special class of binary curves on which the scalar multiplication can be computed very efficiently. For this reason, they are suitable candidates for implementations on low-end processors. However, such devices are often vulnerable to side channel attacks. In this paper, we propose two countermeasures against side channel attacks on Koblitz curves. Both of them utilize a fixed-pattern receding to defeat simple power analysis. Our first technique extends a known countermeasure to the special case of Koblitz curves. In our second technique, the scalar is recoded from left to right, and can be easily stored or even randomly generated. © Springer-Verlag Berlin Heidelberg 2005.
CITATION STYLE
Okeya, K., Takagi, T., & Vuillaume, C. (2005). Efficient representations on Koblitz curves with resistance to side channel attacks. In Lecture Notes in Computer Science (Vol. 3574, pp. 218–229). Springer Verlag. https://doi.org/10.1007/11506157_19
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