IEEE 802.11安全算法WEP

Security Algorithm WEP of IEEE 802.11

摘要:有线等价协议WEP是在IEEE802.11标准中采用的信息保密机制,它主要用于保障无线局域网络中链路层信息数据的保密。对WEP的工作机理进行了分析,重点对其安全性能进行了研究,并发现WEP不能对无线局域网中的数据提供可靠的保护。最后,提出了对WEP进行改进的建议。

The IEEE802.11standard for wireless networks includes a Wired Equivalent Priva-cy(WEP)protocol,which is used to protect link-layer communications from eavesdropping and other attacks.We have discovered several serious security flaws in the protocol,stem ming from misapplication of cryptographic primitives.The flaws lead to a number of practical at-tacks that demonstrate that WEP fails to achieve its security goals.In this paper,we analyse in detail the WEP,emphasis on its security,and propose modify recommendations to WEP.