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Enhancements of Temporal Accountability in Medical Sensor Networks
Jing Liu, Wenlin Han and Yang Xiao

Medical sensor network (MSN) empowers doctors to monitor their patients remotely using signals from wearable medical sensors and devices. However, the temporal signals are vulnerable to alteration under current open infrastructure. Besides, the MSN could violate patients’ privacy by leaking their identifications or medical information. To address these problems, we previously proposed an accountable communication protocol for the MSN. This paper extends the previous work and enhances the protocol regarding traffic overhead and key management. Analysis and simulation results show that the enhanced protocol has less traffic load and lightweight authentication scheme, and this makes it more realistic and robust for the MSN.

Keywords: Security, temporal accountability, medical sensor networks, privacy

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