Paper Info
Title
Wireless Key Exchange Using Frequency Impairments
Abstract
Security methods have traditionally been deployed in the upper layers of the protocol stack. Therefore, the properties of the physical layer, like the wireless channel, have remained unexplored for authentication and confidentiality purposes. Some methods to expand the security mechanisms to lower levels have been suggested and thoroughly analyzed. The usage of the wireless channel for the development of key exchange protocols is based on two main properties: reciprocity and multipath propagation on fading channels. Several methods on how to extract and generate common secrecy using these properties have already been proposed. However, some security drawbacks have also been identified. In this paper, we propose to increase the security of these techniques by additionally utilizing hardware-related properties, namely the impairments in the transceivers' local oscillators. The validation of this technique is performed in an experimental setup using the USRP/GNU Radio software-defined radio platform.
Year
DOI
Venue
2014
10.1007/978-3-319-15087-1_22
INFORMATION SECURITY APPLICATIONS, WISA 2014
Keywords
Field
DocType
Confidentiality, Physical layer, Reciprocity, Fading, Frequency, Impairments, Local oscillator
Multipath propagation,Authentication,Wireless,Key exchange,Computer science,Fading,Universal Software Radio Peripheral,Computer network,Physical layer,Protocol stack
Conference
Volume
ISSN
Citations 
8909
0302-9743
0
PageRank 
References 
Authors
0.34
8
2
Name
Order
Citations
PageRank
Jörn Müller-Quade136138.34
Antonio Sobreira de Almeida200.34