| WEP协议分析及其统计模型描述 |
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| 引用本文： | 李强,刘秋芳,单洪. WEP协议分析及其统计模型描述[J]. 计算机工程与应用, 2003, 39(16): 150-152 |
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| 作者姓名： | 李强 刘秋芳 单洪 |
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| 作者单位： | 解放军电子工程学院网络工程教研室,合肥,230037 |
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| 摘 要： | 文章分析了无线局域网802.11协议使用的链路层的安全措施———WEP协议,在此基础上指出64位或128位的WEP密钥的不安全性。并利用统计模型给出了一些结论,指出所需花费的时间及所需捕获加密包的数量。最后给出在802.11环境中获得安全的一些建议。
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| 关 键 词： | WEP协议 RC4算法 统计概率模型 |
| 文章编号： | 1002-8331-(2003)16-0150-03 |
| 修稿时间： | 2002-06-01 |
An Analysis of the WEP Protocol and the Description of Its Statistical Model |
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| Li Qiang Liu Qiufang Shan Hong. An Analysis of the WEP Protocol and the Description of Its Statistical Model[J]. Computer Engineering and Applications, 2003, 39(16): 150-152 |
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| Authors: | Li Qiang Liu Qiufang Shan Hong |
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| Abstract: | This paper analyzes the security issues of the WEP protocol,which is used as a link-layer security protocol for802.11networks.Based on the design flaws ,the64-bit or128-bit WEP key is unsafe.A statistical model to describe the key recovery is presented.The needed time and necessary encrypted packets for the recovery are also estimated.At last,this paper gives some recommendations for security in802.11wireless networks. |
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| Keywords: | WEP protocol RC4Algorithm Statistical Probability Model |
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