DocumentCode :
454250
Title :
An authentication service based on trust and clustering in wireless ad hoc networks: description and security evaluation
Author :
Ngai, Edith C H ; Lyu, Michael R.
Author_Institution :
Dept. of Comput. Sci. & Eng., Chinese Univ. of Hong Kong
Volume :
1
fYear :
2006
fDate :
5-7 June 2006
Abstract :
Security in wireless ad hoc networks is hard to achieve due to the vulnerability of its links, limited physical protection, and the absence of a centralized management point. Consequently, novel approaches are necessary to address the security problem without sacrificing the essential properties of the wireless ad hoc network. Similar to other distributed systems, security in wireless ad hoc networks usually relies on the use of key management mechanisms. In this paper, we present a distributed public key authentication service to protect the network containing malicious and colluding nodes. Our solution was built on a clustering-based network model and a trust model. These models allow mobile hosts to monitor and rate each other with an authentication metric. We also propose a new system of public key certification in conjunction with a trust value update algorithm. Our authentication service is able to discover and isolate malicious and colluding nodes in the network. Finally, we perform security evaluation on the proposed solution. We simulate a network containing malicious nodes and measure a number of metrics with various security operations to demonstrate the effectiveness of our scheme
Keywords :
ad hoc networks; certification; message authentication; public key cryptography; telecommunication security; authentication service; clustering-based network model; description evaluation; distributed public key certification; security evaluation; trust model; wireless ad hoc network; Ad hoc networks; Authentication; Certification; Clustering algorithms; Communication system security; Computer science; Intelligent networks; Mobile ad hoc networks; Protection; Public key;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Sensor Networks, Ubiquitous, and Trustworthy Computing, 2006. IEEE International Conference on
Conference_Location :
Taichung
Print_ISBN :
0-7695-2553-9
Type :
conf
DOI :
10.1109/SUTC.2006.1636164
Filename :
1636164
Link To Document :
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