An efficient countermeasure against side channel attacks for pairing computation

Masaaki Shirase, Tsuyoshi Takagi, Eiji Okamoto

研究成果: Chapter in Book/Report/Conference proceedingConference contribution

5 被引用数 (Scopus)

抄録

Pairing-based cryptosystems have been widely researched, and several efficient hardware implementations of pairings have also been proposed. However, side channel attacks (SCAs) are serious attacks on hardware implementations. Whelan et al. pointed out that pairings except the η T pairing might not be vulnerable against SCAs by setting the secret point to the first parameter [25]. This paper deals with SCAs for the η T pairing over . To our knowledge, the randomized-projective-coordinate method has the smallest overhead among all countermeasures against SCAs for the η T pairing. The cost of that overhead is 3nM, where M is the cost of a multiplication in . In this paper, we propose another countermeasure based on random value additions (x p ∈+∈λ) and (y p ∈+∈λ), where P∈=∈(x p ,y p ) is the input point, and λ is a random value in . The countermeasure using the random value addition was relatively slow in the case of the scalar multiplication of elliptic curve cryptosystems. However, in the case of the η T pairing, we can construct an efficient countermeasure due to the form of the function for a point P∈=∈(x p ,y p ). The overhead of our proposed scheme is just 0.5nM, which is a reduction of more than 75% compared with the randomized-projective-coordinate method.

本文言語英語
ホスト出版物のタイトルInformation Security Practice and Experience - 4th International Conference, ISPEC 2008, Proceedings
ページ290-303
ページ数14
DOI
出版ステータス出版済み - 2008
イベント4th Information Security Practice and Experience Conference, ISPEC 2008 - Sydney, NSW, オーストラリア
継続期間: 4 21 20084 23 2008

出版物シリーズ

名前Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
4991 LNCS
ISSN(印刷版)0302-9743
ISSN(電子版)1611-3349

その他

その他4th Information Security Practice and Experience Conference, ISPEC 2008
Countryオーストラリア
CitySydney, NSW
Period4/21/084/23/08

All Science Journal Classification (ASJC) codes

  • Theoretical Computer Science
  • Computer Science(all)

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