CENTERA: A Centralized Trust-Based Efficient Routing Protocol with Authentication for Wireless Sensor Networks

Sensors

Imad Elhajj¹  Ayman Tajeddine¹  Ayman Kayssi¹  Ali Chehab¹  Wassim Itani² 

[1] Department of Electrical and Computer Engineering, American University of Beirut,Beirut 1107 2020, Lebanon;Department of Electrical and Computer Engineering, Beirut Arab University,Beirut 1107 2809, Lebanon;

关键词: wireless sensor networks;    trust;    centralized routing protocols;    energy efficiency;    misbehaving nodes;    authentication;    identity based encryption;   

DOI  :  10.3390/s150203299

来源: DOAJ

【 摘 要 】

In this paper, we present CENTERA, a CENtralized Trust-based Efficient Routing protocol with an appropriate authentication scheme for wireless sensor networks (WSN). CENTERA utilizes the more powerful base station (BS) to gather minimal neighbor trust information from nodes and calculate the best routes after isolating different types of “bad” nodes. By periodically accumulating these simple local observations and approximating the nodes’ battery lives, the BS draws a global view of the network, calculates three quality metrics—maliciousness, cooperation, and compatibility—and evaluates the Data Trust and Forwarding Trust values of each node. Based on these metrics, the BS isolates “bad”, “misbehaving” or malicious nodes for a certain period, and put some nodes on probation. CENTERA increases the node’s bad/probation level with repeated “bad” behavior, and decreases it otherwise. Then it uses a very efficient method to distribute the routing information to “good” nodes. Based on its target environment, and if required, CENTERA uses an authentication scheme suitable for severely constrained nodes, ranging from the symmetric RC5 for safe environments under close administration, to pairing-based cryptography (PBC) for hostile environments with a strong attacker model. We simulate CENTERA using TOSSIM and verify its correctness and show some energy calculations.

【 授权许可】

Unknown