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

Volume

14

Issue

4

fYear

2012

Firstpage

385

Lastpage

395

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;

fLanguage

English

Journal_Title

Communications and Networks, Journal of

Publisher

ieee

ISSN

1229-2370

Type

jour

DOI

10.1109/JCN.2012.6292245

Filename

6292245