Presentation 2002/5/15
An Extension of Harley Addition Algorithm for Hyperelliptic Curves over Finite Fields of Characteristic Two.
Hiroki SUGIZAKI, Kazuto MATSUO, Jinhui CHAO, Shigeo TSUJII,
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Abstract(in English) Fast addition algorithm for divisor classes of hyperelliptic curves is of essentially importance for construction of hyperelliptic curve cryptosystems. Recently, a fast addition algorithm for divisor class groups of genus two hyperelliptic curves was proposed by Harley. The algorithm is designed only for curves over finite fields of odd characteristic. In this paper, we present an extension of Harley's algorithm to curves over finite fields of even characteristic. The proposed algorithm takes I + 25M for an addition and I + 27M for a doubling, where I and M denote costs for an inversion and a multiplication over the definition finite field respectively.
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Keyword(in English) Hyperelliptic curve cryptosystems / Genus two / Characteristic two / Addition algorithms / Cantor algorithm / Harley algorithm
Paper # ISEC2002-9
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Committee ISEC
Conference Date 2002/5/15(1days)
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Language ENG
Title (in Japanese) (See Japanese page)
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Title (in English) An Extension of Harley Addition Algorithm for Hyperelliptic Curves over Finite Fields of Characteristic Two.
Sub Title (in English)
Keyword(1) Hyperelliptic curve cryptosystems
Keyword(2) Genus two
Keyword(3) Characteristic two
Keyword(4) Addition algorithms
Keyword(5) Cantor algorithm
Keyword(6) Harley algorithm
1st Author's Name Hiroki SUGIZAKI
1st Author's Affiliation Dept. of Information and System Engineering, Chuo University()
2nd Author's Name Kazuto MATSUO
2nd Author's Affiliation Research and Development Initiative, Chuo University
3rd Author's Name Jinhui CHAO
3rd Author's Affiliation Dept. of Electrical, Electronic, and Communication Engineering, Chuo University
4th Author's Name Shigeo TSUJII
4th Author's Affiliation Dept. of Information and System Engineering, Chuo University
Date 2002/5/15
Paper # ISEC2002-9
Volume (vol) vol.102
Number (no) 71
Page pp.pp.-
#Pages 8
Date of Issue