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このアイテムの引用には次の識別子を使用してください:
http://hdl.handle.net/10119/9068
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| タイトル: | New Correlations of RC4 PRGA Using Nonzero-Bit Differences |
| 著者: | Miyaji, Atsuko
Sukegawa, Masahiro |
| キーワード: | RC4
Correlations |
| 発行日: | 2009 |
| 出版者: | Springer |
| 誌名: | Lecture Notes in Computer Science |
| 巻: | 5594/2009 |
| 開始ページ: | 134 |
| 終了ページ: | 152 |
| DOI: | 10.1007/978-3-642-02620-1_10 |
| 抄録: | RC4 is the stream cipher proposed by Rivest in 1987, which is widely used in a number of commercial products because of its simplicity and substantial security. RC4 exploits shuffle-exchange paradigm, which uses a permutation S. Many attacks have been reported so far. No study, however, has focused on correlations in the Pseudo-Random Generation (PRGA) between two permutations S and S′ with some differences, nevertheless such correlations are related to an inherent weakness of shuffle-exchange-type PRGA. In this paper, we investigate the correlations between S and S′ with some differences in the initial round. We show that correlations between S and S′ remain before “i” is in the position where the nonzero-bit difference exists in the initial round, and that the correlations remain with non negligible probability even after “i” passed by the position. This means that the same correlations between S and S′ will be observed after the 255-th round. This reveals an inherent weakness of shuffle-exchange-type PRGA. |
| Rights: | This is the author-created version of Springer, Atsuko Miyaji and Masahiro Sukegawa, Lecture Notes in Computer Science, 5594/2009, 2009, 134-152. The original publication is available at www.springerlink.com, http://dx.doi.org/10.1007/978-3-642-02620-1_10 |
| URI: | http://hdl.handle.net/10119/9068 |
| 資料タイプ: | author |
| 出現コレクション: | b10-1. 雑誌掲載論文 (Journal Articles)
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このアイテムのファイル:
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記述 |
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| 13750.pdf | | 638Kb | Adobe PDF | 見る/開く |
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