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00 Secure Ad-Hoc Trust Initialization and Key Management in Wireless Body Area Networks

By Ming Li

Abstract

Body area network (BAN) is a key enabling technology in E-healthcare. An important security issue is to establish initial trust relationship among the BAN devices before they are actually deployed, and generate necessary shared secret keys to protect the subsequent wireless communications. Due to the ad hoc nature of the BAN and the extreme resource constraints of sensor devices, providing secure, efficient and userfriendly trust initialization is a challenging task. Traditional solutions for wireless sensor networks mostly depend on key pre-distribution, which is unsuitable for BAN in many ways. In this paper, we propose group device pairing (GDP), a user-aided multi-party authenticated key agreement protocol. Through GDP, a group of sensor devices that have no pre-shared secrets, establish initial trust by by generating various shared secret keys out of an unauthenticated channel. Devices authenticate themselves to each other under the aid of a human user who performs visual verifications. The GDP supports fast batch deployment, addition and revocation of sensor devices, does not rely on any additional hardware device, and is mostly based on symmetric key cryptography. We formally prove the security of the proposed protocols, and we implemen

Topics: Categories and Subject Descriptors, C.2.0 [Computer–Communication Networks, General—Security and Design, C.2.0 [Computer–Communication Networks, Network Architecture and Design—Wireless communication, Network topology, C.4.0 [Computing Systems Organization, Performance of Systems, K.4.6 [Operating Systems, Security and Protection—Cryptographic controls, K.6.5 [Management of Computing and Information Systems, Security and Protection General Terms, Security, Design, Experiment, Body Area Networks, Efficiency Additional Key Words and Phrases, Trust Establishment, Key Management, Usable Security, Device Pairing ACM Reference Format
Year: 2013
OAI identifier: oai:CiteSeerX.psu:10.1.1.352.8865
Provided by: CiteSeerX
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