Abstract
Single-electron transistors (SETs) exhibit a unique characteristic of Coulomb oscillation which can find many digital applications with area efficiency. More specifically, both MOS and SET devices can be used to implement XOR gates with almost the same area costs regardless of the number of their inputs, outperforming pure CMOS solutions. As multiple-input XOR gates are abundant in the finite field polynomial multiplication which represents the most frequent computation in elliptic curve cryptosystem, hybrid SET-MOS technology can substantially reduce the area cost for this application. This paper presents polynomial multiplication architectures with hybrid SET-MOS transistors and explores Karatsuba-algorithm based multiplication for further area optimization. Simulations show that the proposed hybrid SET-MOS implementations can typically provide around 37% savings in terms of gate count compared to their traditional CMOS counterparts.
Published Version
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