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应用科学学报 ›› 2005, Vol. 23 ›› Issue (1): 67-70.

• 论文 • 上一篇    下一篇

无线局域网TKIP协议的安全分析

宋宇波, 胡爱群, 蔡天佑   

  1. 东南大学信息安全研究中心, 江苏南京 210096
  • 收稿日期:2003-09-11 修回日期:2003-12-01 出版日期:2005-01-31 发布日期:2005-01-31
  • 作者简介:宋宇波(1977-),男,江苏无锡人,博士生,E-mail:wavesong@263.net;胡爱群(1965-),男,江苏南通人,教授,博导.
  • 基金资助:
    863高技术计划资助项目(2002AA143010)

The Security Analysis for WLAN TKIP Protocol

SONG Yu-bo, HU Ai-qun, CAI Tian-you   

  1. Research Center of Information Security, Southeast University, Nanjing 210096, China
  • Received:2003-09-11 Revised:2003-12-01 Online:2005-01-31 Published:2005-01-31

PDF

78

被引次数

45

摘要： 通过建立数学模型的方法对TKIP(temporal key integrity protocol)进行量化的安全分析,推导出TKIP协议内各模块与整个协议安全性能的对应函数关系,特别着重分析了iv空间与安全强度间的关系.根据分析得出TKIP协议虽然提高原有WEP(wired equivalent privacy)的安全性能,但其安全强度并没有预想的高.

关键词: WEP, TKIP, 无线局域网, 安全分析

Abstract: As an expansion of LAN, the WLAN reduces the cost of building a network infrastructure and enables the users to enjoy the mobile services.The 802.11 standard includes a wired equivalent privacy (WEP) protocol, which is used to protect communications from eaves dropping.Several serious security flaws in this protocol have been discovered.To cope with this problem, IEEE802.11i Group proposed adapting TKIP protocol to enhance the WLAN security.In this paper, through analyzing TKIP protocol, concrete security analyses of TKIP protocol are made.It was shown that although TKIP did indeed increase security and result in significant, provable security gains, but it still failed to meet the need of users in a WLAN environment.

Key words: security analysis, WEP, TKIP, WLAN

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