A Privacy-Preserving Kid's Safety Care Service Based on Sensor Network in U-City

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Executive Summary

Although several mobile operators such as SKT, KTF, and LGT in Korea provide their own kid's safety care services to reduce many parents' concern, three problems still remain: incorrect location information, privacy violation, and no capability of an end-user to control the safety care service during access to the service. In this paper, the authors derive security requirements of kid's safety care service and explain their system model to satisfy these requirements. Based on the authors' system model they propose their protocol for kid's safety care service. Compared to the previous work, their protocol can enhance accuracy of location information, preserver privacy of an end-user, and give an end-user a capability controlling the safety care service during access to the service.

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