IACR News item: 29 January 2015
Tobias Schneider, Amir Moradi, Tim Güneysu
ePrint ReportIn this paper, we present two design strategies to realize a secure and efficient arithmetic adder for Boolean-masked values. First, we introduce an architecture based on the ripple-carry adder that targets low-cost applications. The second architecture is based on a pipelined Kogge-Stone adder and targets high-performance applications. In particular, all our implementations adopt the threshold implementation approach to improve their resistance against SCA attacks even in the presence of glitches. We evaluated the security of our designs practically against SCA using a non-specific statistical t-test. Based on our analysis, we show that our constructions not only achieve resistance against first- and (univariate) second-order attacks but also require fewer random bits per operation compared to any existing software-based approach.
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