 Adaptable Security in Wireless Sensor Networks by Using Reconfigurable ECC Hardware CoprocessorsJ. Portilla, A. Otero, E. de la Torre, T. Riesgo, O. Stecklina, S. Peter and P. Langendörfer International Journal of Distributed Sensor Networks, 2010, vol. 6, issue 1, 740823 Abstract: Specific features of Wireless Sensor Networks (WSNs) like the open accessibility to nodes, or the easy observability of radio communications, lead to severe security challenges. The application of traditional security schemes on sensor nodes is limited due to the restricted computation capability, low-power availability, and the inherent low data rate. In order to avoid dependencies on a compromised level of security, a WSN node with a microcontroller and a Field Programmable Gate Array (FPGA) is used along this work to implement a state-of-the art solution based on ECC (Elliptic Curve Cryptography). In this paper it is described how the reconfiguration possibilities of the system can be used to adapt ECC parameters in order to increase or reduce the security level depending on the application scenario or the energy budget. Two setups have been created to compare the software- and hardware-supported approaches. According to the results, the FPGA-based ECC implementation requires three orders of magnitude less energy, compared with a low power microcontroller implementation, even considering the power consumption overhead introduced by the hardware reconfiguration. Date: 2010 Downloads: (external link) Related works: Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text Persistent link: https://EconPapers.repec.org/RePEc:sae:intdis:v:6:y:2010:i:1:p:740823 DOI: 10.1155/2010/740823 Access Statistics for this article More articles in International Journal of Distributed Sensor Networks |
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