Hoe to Improve Interpolation Attack(Symmetric Key Cryptography)(<Special Section>Cryptography and Information Security)
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概要
- 論文の詳細を見る
In the key recovery variant of the interpolation attack, exhaustive search is required to find the last round key K_m. Therefore, this attack is almost impractical if the size of K_m is too large In this paper, we show that K_m can be very efficiently obtained if F (K, x) can be approximated by a low degree polynomial g_x (K) in K for any fixed x, where F is a round function of Feistel type block ciphers.
- 社団法人電子情報通信学会の論文
- 2005-01-01
著者
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IWATA Tetsu
Department of Computer and Information Sciences, Ibaraki University
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KUROSAWA Kaoru
Department of Computer and Information Sciences, Ibaraki University
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Iwata T
Department Of Computer And Information Sciences Ibaraki University
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Iwata Tetsu
Department Of Computational Science And Engineering Nagoya University
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Kurosawa Kaoru
Department Of Computer And Information Sciences Ibaraki University
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DUONG Quang
Department of Communications and Integrated Systems, Tokyo Institute of Technology
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Duong Quang
Department Of Information And Network Systems Natl. Inst. Of Info And Com. Tech.
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Duong Quang
Department Of Communications And Integrated Systems Tokyo Institute Of Technology
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Kurosawa Kaoru
Department Of Behavioral Sciences Faculty Of Letters Chiba University
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