Verification of Various Attack Approaches Against CSI-Based Secret Key in Different Types of LOS Channels.

Exploiting random fluctuations of radio channel for key agreement has been investigated for several years; however, these methods of key reconciliation in wireless LANs are vulnerable to attacks especially in case of Line-of-Sight (LOS) channels. In the following paper we will verify whether applying antenna arrays with reconfigurable antennas reduces the number of key bits leaking to the eavesdropper by utilizing two types of attack: Nearest Neighbour Excursion (NNE) and Average RSSI.