Welcome to the resource topic for 2014/817
Title:
Optimized Karatsuba Squaring on 8-bit AVR Processors
Authors: Hwajeong Seo, Zhe Liu, Jongseok Choi, Howon Kim
Abstract:Multi-precision squaring is a crucial operation for implementation of Elliptic Curve Cryptography. Particularly, when it comes to embedded processors, the operation should be designed carefully to execute expensive ECC operation on resource constrained devices. In order to bridge the gap between high overheads and limited computation capabilities, we present optimized Karatsuba squaring method for embedded processors. Traditional squaring computation can be divided into two sub-squaring and one sub-multiplication parts. Firstly we compute the multiplication part with the fastest Karatsuba multiplication and then remaining two squaring parts are conducted with the fastest sliding block doubling squaring. Proposed method sets the new speed records for multi-precision squaring, improving the execution time by up to 8.49% comparing to the best known works.
ePrint: https://eprint.iacr.org/2014/817
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