无线网络安全通过移动代理的方法.ppt

Wireless Network Security: The Mobile Agent Approach无线网络安全:移动代理的方法 组员：郭凯 刘少华 * ? Social Centered Selling LLC | connect. collaborate. close! 1.Security Challenges in Wireless Networks The fact that data are being broadcast via radio waves rather than transmitted over a wire introduces security challenges namely:事实上数据通过无线电波广播而不是通过电线传输，带来了安全挑战，即: ●How can you prevent user credentials from being hijacked during authentication negotiation? 如何防止用户凭据在认证协商被劫持？ ●Once authentication is complete, how can you protect the privacy of the data being transmitted between client and access point? And finally, 一旦认证完成，你怎么能保护客户端和接入点之间传送的数据的隐私？最后， ●How can you make sure the authorized user connects to the right network? 如何确保授权用户连接到正确网络? The concerns are that of authentication, data confidentiality and privacy, data integrity, availability and rogue access point. 这些问题有身份验证,数据必威体育官网网址性和隐私性、数据完整性、可用性和流氓访问点。 * ? Social Centered Selling LLC | connect. collaborate. close! 2.Wireless Network Security Approaches无线网络安全的方法 Wireless Equivalent Privacy (WEP) protocol 无线等效隐私(WEP)协议 Wi-Fi protected access (WPA) 无线保护访问(WPA) IEEE 802.11i (also known as WPA2) IEEE 802.11i(也称为WPA2) Mobile Agent (MA) 移动代理 * ? Social Centered Selling LLC | connect. collaborate. close! The Wireless Equivalent Privacy (WEP) protocol was the first link-layer security mechanism introduced in 802.11 to provide a security level compared to that of with a physical wire. Unfortunately it is also fairly insecure. Hackers can easily find out the password and then do anything they want with your network. 无线等效隐私(WEP)协议是第一个链路层安全机制中引入802.11提供一个安全的水平相比,物理连接。不幸的是它也相当不安全。黑客可以很容易地找出密码,然后与你的网络做他们想做的任何事。 * ? Social Centered Selling LLC | connect. collaborate. close! WPA has some security flaws similar to WEP which poses additional threat and concerns namely: WPA一些类似WEP安全漏洞,提出了额外的威胁和问题即: ? ●Encryption weakness—WPA suffer from encryption weakness making it possible for data tampering and masquerading at