[Resource Topic] 2007/181: A New Method for Speeding Up Arithmetic on Elliptic Curves over Binary Fields

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Title:
A New Method for Speeding Up Arithmetic on Elliptic Curves over Binary Fields

Authors: Kwang Ho Kim, So In Kim

Abstract:

Now, It is believed that the best costs of a point doubling and addition on elliptic curves over binary fields are 4M+5S(namely, four finite field multiplications and five field squarings) and 8M+5S, respectively. In this paper we reduce the costs to less than 3M+3S and 8M+1S, respectively, by using a new projective coordinates we call PL-coordinates and rewriting the point doubling formula. Combining some programming skills, the method can speed up a elliptic curve scalar multiplication by about 15~20 percent in practice.

ePrint: https://eprint.iacr.org/2007/181

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