Welcome to the resource topic for 2016/434
Title:
A Tale of Two Shares: Why Two-Share Threshold Implementation Seems Worthwhile-and Why it is Not
Authors: Cong Chen, Mohammad Farmani, Thomas Eisenbarth
Abstract:In this work, we explore the possibilities for practical Threshold Implementation (TI) with only two shares in order for a smaller design that needs less randomness but is still first-order leakage resistant. We present the first two-share Threshold Implementations of two lightweight block ciphers—Simon and Present. The implementation results show that two-share TI gains in compactness while loses in throughput compared with three-share schemes. Moreover, the leakage analyses show that two-share TI retains perfect first-order resistance but is shadowed by a strong second-order leakage, making it less worthwhile.
ePrint: https://eprint.iacr.org/2016/434
Talk: https://www.youtube.com/watch?v=c72JEPQJuIE
Slides: https://iacr.org/cryptodb/archive/2016/ASIACRYPT/presentation/27905.pptx
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