期刊名称：International Journal of Innovative Research in Science, Engineering and Technology
印刷版ISSN：2347-6710
电子版ISSN：2319-8753
出版年度：2014
卷号：3
期号：4
页码：11911
出版社：S&S Publications
摘要：Localization in wireless sensor networks, i.e.,knowing the location of sensor nodes, is very important formany applications such as environment monitoring, targettracking, and geographical routing. Since wireless sensornetworks may be deployed in hostile environment, sensors’localization is subjected to many malicious attacks.Therefore, sensors’ locations are not trstworthy and needto be verified before they can be used by location-basedapplications. Previous verification schemes either requiregroup-based deployment knowledge of the sensor field, ordepend on expensive or dedicated hardware, thus theycannot be used for low-cost sensor networks. In thisproject, we propose a lightweight location verificationsystem. In addition, we propose vector based virtualenergy key management based privacy informationtransfer for WSNs that significantly reduces the numberof transmissions needed for rekeying to avoid stale keys. Itis a secure communication frame-work where sensed datais encoded using a scheme based on a permutation codegenerated via the RC4 encryption mechanism. The key tothe RC4 encryption mechanism dynamically changes as afunction of the residual virtual energy of the sensor.Thus,a one-time dynamic key is employed for one packet onlyand different keys are used for the successive packets ofthe stream. The intermediate nodes along the path to thesink are able to verify the authenticity and integrity of theincoming packets using a predicted value of the keygenerated by the sender’s virtual energy, thus requiringno need for specific rekeying messages. It is able toefficiently detect and filter false data injected into thenetwork by malicious outsiders. Our results show that,without incurring transmission overhead, is able toeliminate malicious attack from the network in an energyefficient manner.
