title: Layered Location-Based Security Mechanism for Mobile Sensor Networks: Moving Security Areas.
abstract: Network security is one of the most important issues in mobile sensor networks (MSNs). Networks are particularly vulnerable in hostile environments because of many factors, such as uncertain mobility, limitations on computation, and the need for storage in mobile nodes. Though some location-based security mechanisms can resist some malicious attacks, they are only suitable for static networks and may sometimes require large amounts of storage. To solve these problems, using location information, which is one of the most important properties in outdoor wireless networks, a security mechanism called a moving security area (MSA) is proposed to resist malicious attacks by using mobile nodes' dynamic location-based keys. The security mechanism is layered by performing different detection schemes inside or outside the MSA. The location-based private keys will be updated only at the appropriate moments, considering the balance of cost and security performance. By transferring parts of the detection tasks from ordinary nodes to the sink node, the memory requirements are distributed to different entities to save limited energy.
authors.affiliation: School of Computer Science and Software Engineering, Tianjin Polytechnic University, Tianjin 300387, China. wangze@tjpu.edu.cn.
authors.forename: Ze
authors.initials: Z
authors.lastname: Wang
authors.affiliation: School of Computer Science and Software Engineering, Tianjin Polytechnic University, Tianjin 300387, China. zhanghaijuan113@outlook.com.
authors.forename: Haijuan
authors.initials: H
authors.lastname: Zhang
authors.affiliation: School of Computer Science and Software Engineering, Tianjin Polytechnic University, Tianjin 300387, China. luqiangwuwind@gmail.com.
authors.forename: Luqiang
authors.initials: L
authors.lastname: Wu
authors.affiliation: School of Computer Science and Software Engineering, Tianjin Polytechnic University, Tianjin 300387, China. zhouc1993@sina.com.
authors.forename: Chang
authors.initials: C
authors.lastname: Zhou
keywords: location-based key; malicious attacks; mobile sensor networks; replication attack