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Ensuring system security through proximity based authentication

As Internet of Things applications using embedded systems enter wider markets, securing systems against attacks becomes necessary. In many applications, securely determining transmitter location helps maintaining system security. A relatively new RF-based localization technique called Received Signal Strength Ratio (RSSR), has potential utility in securing ad-hoc networks and body-area networks. We describe a novel attack on the security of such systems, and discuss a set of mitigation strategies that restore the effectiveness of RSSR.