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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/10119/9228
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| タイトル: | New Analysis Based on Correlations of RC4 PRGA with Nonzero-Bit Differences |
| 著者: | MIYAJI, Atsuko
SUKEGAWA, Masahiro |
| キーワード: | RC4 Correlation
shuffle-exchange structure
pseudo key collision |
| 発行日: | 2010-06-01 |
| 出版者: | 電子情報通信学会 |
| 誌名: | IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences |
| 巻: | E93-A |
| 号: | 6 |
| 開始ページ: | 1066 |
| 終了ページ: | 1077 |
| DOI: | 10.1587/transfun.E93.A.1066 |
| 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: | Copyright (C)2010 IEICE. Atsuko MIYAJI, Masahiro SUKEGAWA, IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences, E93-A(6), 2010, 1066-1077. http://www.ieice.org/jpn/trans_online/ |
| URI: | http://hdl.handle.net/10119/9228 |
| 資料タイプ: | publisher |
| 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 |
サイズ | 形式 |
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| 15548-1.pdf | | 813Kb | Adobe PDF | 見る/開く |
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