Layered Location-Based Security Mechanism for Mobile Sensor Networks: Moving Security Areas

Sensors

Ze Wang¹  Haijuan Zhang¹  Luqiang Wu¹  Chang Zhou² 

[1] School of Computer Science and Software Engineering, Tianjin Polytechnic University, Tianjin 300387, China;

关键词: mobile sensor networks;    malicious attacks;    location-based key;    replication attack;   

DOI  :  10.3390/s151024886

来源: mdpi

【 摘 要 】

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.

【 授权许可】

CC BY   
© 2015 by the authors; licensee MDPI, Basel, Switzerland.