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We consider healthcare wireless sensor networks implemented using 802.15.4 beacon enabled technology, in which security processors are implemented with low power microcontrollers. In this setting, we propose to use elliptic curve cryptography for key distribution, in order to decrease energy consumption compared to the better known RSA algorithm.
Wireless sensor nodes have restricted computational resources, and are always deployed in a harsh, unattended or hostile environment. Therefore, network security represents a challenging task. This work presents a public-key based pre-distribution scheme with time-position nodes for simultaneous exchange of secure keys. The proposed defend attack and key management mechanism for sensor network applications...
Anomaly detection in wireless sensor networks is an important challenge for tasks such as fault diagnosis, intrusion detection, and monitoring applications. The algorithms developed for anomaly detection have to consider the inherent limitations of sensor networks in their design so that the energy consumption in sensor nodes is minimized and the lifetime of the network is maximized. In this survey...
Both correct transmission using hashing and protection of messages using encryption in sensor nodes require additional energy. This paper describes our measurement results for energy consumption in CrossBow and Ember sensor nodes for the process of exchanging data messages between nodes both in the clear and in a protected form. Full strength algorithms were loaded into and executed in nodes. It was...
In wireless sensor networks, nodes are easy to be compromised by the adversary due to the resource limitations of the sensor nodes. How to reduce the energy consumption of nodes and increase the security becomes the goal of the security technologies. An energy-aware random pairwise keys (ERPK) scheme was proposed in this paper. In the phase of the key-setup, the node identity and the residual energy...
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