Implementation of Aggregate Signcryption in Unattended Medical WSNs using Micaz

Abstract

Healthcare applications are promising fields for wireless sensor networks called wireless medical sensor networks. The main issues in wireless medical sensor networks are reliable communication, patient mobility and security of sensed physiological data. In order to mobile patient monitoring, disconnected or unattended setting of wireless medical sensor networks is considered. The disconnected property causes periodic or offline data delivery of information. Moreover, medical sensors nodes should retain data for long time while they have limited battery and capacity. These challenges provide attacker to threat security of sensed data without being detected. In this paper, we propose an efficient aggregate signcryption technique to provide simultaneously confidentiality, integrity (by encrypting) and authenticating (by signing) for collected data. Moreover, the aggregation property reduces communication and space overhead as well as signcryption provides time efficiency by applying mostly linear operators. We further, compare our technique with the nest alternative works in the literature to show the efficiency and resilience against various attacks

Keywords

• unattended wireless medical sensor networks, confidentiality, integrity, authenticity, space overhead

Kaynakça

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