Abstract
Losing smartphones is a troublesome thing as smartphones are playing an important role in our daily lives. As smartwatches become popular, we argue that smartwatches can play a role in smartphone antitheft design. In this paper, we propose i-Shield, a real-time antitheft system that leverages accelerometers and gyroscopes of smartphones and smartwatches to prevent smartphone being stolen. As opposed to existing solutions which are based on Bluetooth, NFC, or GPS tracking, i-Shield follows a practical manner to achieve the goal of real-time antitheft for smartphones. i-Shield recognizes taken-out events of smartphones using a supervised classifier, and applies a dynamic time warping (DTW) scheme to recognize whether the events are caused by users themselves. We conduct a series of experiments on iPhone6 and iPhone4s, and the evaluation results show that our system can achieve 97.4 % true positive rate of recognizing taken-out actions, and classify taken-out actions with misclassification rate of 1.12 %.
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Acknowledgements
This paper is supported by the National Science Foundation of China under No. U1301256 and 51274202, Special Project on IoT of China NDRC (2012-2766).
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Yu, Z., Huang, L., Guo, H., Xu, H. (2016). i-Shield: A System to Protect the Security of Your Smartphone. In: Lehner, F., Fteimi, N. (eds) Knowledge Science, Engineering and Management. KSEM 2016. Lecture Notes in Computer Science(), vol 9983. Springer, Cham. https://doi.org/10.1007/978-3-319-47650-6_36
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DOI: https://doi.org/10.1007/978-3-319-47650-6_36
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