| RC4及其密钥流区分器 |
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| 引用本文： | 沈静,杜育松,王大星.RC4及其密钥流区分器[J].信息安全与通信保密,2006(12):182-183. |
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| 作者姓名： | 沈静 杜育松 王大星 |
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| 作者单位： | 广州大学数学与信息科学学院,广东,广州,510006 |
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| 摘 要： | 文章介绍了RC4流密码体制,详细解释了RC4密钥流区分器的含义,描述了基于第二字节偏差的密钥流区分器,并在软件上实现了该区分器。实验结果表明,如果设定区分器的大小N=28=256,那么一次区分成功的可能性大约为59%。文章最后指出该密钥流区分器在攻击广播RC4加密中的一个应用。
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| 关 键 词： | RC4 密钥流区分器 第二字节偏差 |
| 文章编号： | 009-8054(2006)12-0182-02 |
| 修稿时间： | 2006年5月29日 |
RC4 and Its Key Stream Distinguisher |
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| Shen Jing,Du Yusong,Wang Daxing.RC4 and Its Key Stream Distinguisher[J].China Information Security,2006(12):182-183. |
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| Authors: | Shen Jing Du Yusong Wang Daxing |
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| Abstract: | Stream cipher RC4 is introduced and RC4 key stream distinguisher is elaborated. A distinguisher based on second byte bias is depicted and implemented by software. It shows that the probability of one time distinguishing successfully is about 0.59, when the size of the distinguisher is N=28=256. The application of the distinguisher in attacking broadcast RC4 is presented. |
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| Keywords: | RC4 Key stream distinguisher Second byte bias |
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