SecureAngle: improving wireless security using angle-of-arrival information (poster abstract)

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Proceedings of the ACM SIGCOMM 2010 conference on SIGCOMM - SIGCOMM '10, ISSN: 0146-4833, Vol: 40, Issue: 4, Page: 415-416

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Repository URL:;
10.1145/1851182.1851238; 10.1145/1851275.1851238
Association for Computing Machinery (ACM); ACM
Computer Science; Mathematics; Wireless; 802.11; SecureAngle; Angle of arrival; Applied or Integration/Application Scholarship; Software Engineering; Software and Cyber-Physical Systems
conference paper description
Wireless local area networks play an important role in our everyday lives, at the workplace and at home. However, wireless networks are also relatively vulnerable: physically located off-premises, attackers can circumvent wireless security protocols such as WEP, WPA, and even to some extent WPA2, presenting a security risk to the entire network. To address this problem, we propose SecureAngle, a system designed to operate alongside existing wireless security protocols, adding defense in depth. SecureAngle employs multiantenna APs to profile the directions at which a client's signal arrives, using this angle-of-arrival information to construct unique signatures that identify each client. With these signatures, we are currently investigating how a SecureAngle enabled AP can enable a "virtual fence" that drops frames injected into the network from a client physically located outside a building, and how a SecureAngle-enabled AP can prevent malicious parties from spoofing the link-layer address of legitimate clients.