VLKM:基于虚拟位置的无线传感器网络密钥管理方案

R. Vaid, V. Katiyar
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引用次数: 5

摘要

由于网络中的传感器节点资源有限,设计一种节能的密钥管理方案来保护无线传感器网络是一项具有挑战性的任务。如果在网络生命周期内使用初始密钥,则未经授权的节点窃取密钥将导致网络中生成的数据泄露。因此,在指定的轮数之后重新密钥是必要的,以避免网络中密钥陈旧的副作用。在集群环境中,每个传感器都需要若干个键。如果传感器的角色是集群头,则需要一个键来收集所有集群成员的数据。该密钥在簇头传感器和属于该簇的所有传感器之间共享。将聚合数据传输到基站需要不同的密钥,该密钥仅在作为簇头的传感器节点和基站之间共享。但是,如果簇头的角色从一个传感器随机地改变为不同的传感器,则需要在传感器节点和新的簇头之间共享一个新密钥,也需要在新的簇头和基站之间共享一个新密钥。如果遵循该方案,那么在每轮之后重新密钥是网络的瓶颈,因为每个传感器需要多次重新密钥。本文提出了一种新的基于虚拟位置的密钥管理方案(VLKM)。该方案利用虚拟位置为每个传感器生成一个圆密钥。仿真结果表明,该方案在不增加通信开销的情况下,性能优于文献中其他方案。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
VLKM: Virtual location-based key management scheme for Wireless Sensor Networks
Designing an energy efficient key management scheme to secure Wireless Sensor Networks is a challenging task because sensor nodes in the network are resource constrained. If an initial key is used in the network lifetime, a key stolen by an unauthorized node will results in data compromised that is generated in the network. So a re-keying is necessary after a specified number of rounds to avoid the side effect of stale key in the network. In clustering environment, a number of keys are needed for every sensor. If the role of sensor is cluster head, then one key is required to collect data from all cluster members. This key is shared between the cluster head sensor and all the sensors which are members of that cluster. The different key is required to transfer the aggregated data to base station this key is only shared between the sensor node which is cluster head and the base station. But if the role of cluster head is changed from one sensor to different sensor randomly, a new key will be require that is share between sensor node and new cluster head and also a new key will be required that is shared between this new cluster head and the base station. If the scheme is followed then re-keying after every round is a bottleneck of the network as more than one re-keying is require for every sensor. In this paper, we have presented a new virtual location based key management scheme (VLKM). This scheme used virtual location to generate a round key for every sensor. Simulation results show that proposed scheme performs better than other comparable schemes in the literature without increasing the communication overheads.
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