Title :
Towards robust key extraction from multipath wireless channels
Author :
El Hajj Shehadeh, Youssef ; Alfandi, Omar ; Hogrefe, Dieter
Author_Institution :
Inst. of Comput. Sci., Univ. of Goettingen, Gottingen, Germany
Abstract :
This paper tackles the problem of generating shared secret keys based on the physical characteristics of the wireless channel. We propose intelligent quantization mechanisms for key generation, achieving high secret bits generation rate. Moreover, some practical issues affecting the performance of the key generation mechanism are deeply investigated. Mainly, we investigate the effects of delay and mobility on the performance and we enhance the key generation mechanism accordingly. As a result, this paper presents a framework towards robust key generation from multipath wireless channels.
Keywords :
delays; multipath channels; public key cryptography; quantisation (signal); telecommunication security; wireless channels; delay effect; intelligent quantization mechanisms; key generation mechanism; multipath wireless channels; physical-layer security; robust key extraction; secret bits generation rate; shared secret keys; Ad hoc networks; Channel estimation; Communication system security; Quantization; Robustness; Wireless communication; Wireless sensor networks; Intelligent quantization; key generation; multipath channel; physical-layer security; practical issues;
Journal_Title :
Communications and Networks, Journal of
DOI :
10.1109/JCN.2012.6292245
