Lightweight Authentication in Wireless Networks

TL;DRAbstract

In this thesis, we develop and analyse two novel authentication protocols well suited for wireless devices. iven that wireless devices have limited resources such as processing power, bandwidth, storage, and energy, the proposed authentication protocols need to be lightweight. Due to these limitations there is a tradeoff between security and performance. To guarantee complete network access control the authentication is performed on a per-packet basis. Therefore, a Lightweight Authentication Code (LAC) is embedded in each packet as an authenticator. Authentication is necessary to guarantee the identity of a source since, with a wireless network, an adversary could easily inject traffic to get access to a network or launch a Denial-of-Service attack. The protocols are designed to be generic and applicable to standards such as IEEE 802.11 and Bluetooth. In order to handle packet loss or an attack, synchronization algorithms are advanced and analysed to synchronize the sender's and the re

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