10-04-2017, 09:09 PM
Abstract
Wired connections are much more secure than wireless connections when the physical security of the data is considered (i.e data will pass only through wires in wired connections). But in the case of wireless connections, data is broadcasted and passes through air, which can even be caught by and eavesdropper from the other side of the wall. So a big threat exists for wireless LANs. To provide security features to an intrinsically insecure transmit data, 802.11 introduced the Wired Equivalent Privacy (WEP) protocol, thereby trying to bring the security level of wireless systems to a peer level as their wired brethren. Wired equivalent privacy was introduced in wireless LANs to prevent the insecurity discussed above. But the light weight protocols included in WEP are such that they are susceptible to attacks and can be easily broken. In this project we develop a new cipher suite to strengthen the WEP, thereby imparting security to the wireless LANs. The considerations in the cipher suite design are the security level demanded, the overheads for the system, and the speed. Unfortunately, there is no cryptographic algorithm which can simultaneously provide maximum security with minimum overheads. This thesis is concerned with the design and testing of WIP (Wireless Improved Privacy), a protocol suite for improving the security in Wireless LANs.
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