Key distribution and renewing in wireless local area networks is a crucial issue to guarantee that unauthorized users are prevented from accessing the network. In this paper, we propose a technique for allowing an automatic bootstrap and periodic renewing of the network key by exploiting physical layer security principles, that is, the inherent differences among transmission channels. The proposed technique is based on scrambling of groups of consecutive packets and does not need the use of an initial authentication nor automatic repeat request protocols. We present a modification of the scrambling circuits included in the IEEE 802.11g standard which allows for a suitable error propagation at the unauthorized receiver, thus achieving physical layer security.
A physical layer secured key distribution technique for IEEE 802.11g wireless networks / Baldi, Marco; Bianchi, Marco; Maturo, Nicola; Chiaraluce, Franco. - In: IEEE WIRELESS COMMUNICATIONS LETTERS. - ISSN 2162-2337. - STAMPA. - 2:2(2013), pp. 183-186. [10.1109/WCL.2012.122612.120787]
A physical layer secured key distribution technique for IEEE 802.11g wireless networks
BALDI, Marco;BIANCHI, MARCO;MATURO, NICOLA;CHIARALUCE, FRANCO
2013-01-01
Abstract
Key distribution and renewing in wireless local area networks is a crucial issue to guarantee that unauthorized users are prevented from accessing the network. In this paper, we propose a technique for allowing an automatic bootstrap and periodic renewing of the network key by exploiting physical layer security principles, that is, the inherent differences among transmission channels. The proposed technique is based on scrambling of groups of consecutive packets and does not need the use of an initial authentication nor automatic repeat request protocols. We present a modification of the scrambling circuits included in the IEEE 802.11g standard which allows for a suitable error propagation at the unauthorized receiver, thus achieving physical layer security.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.