A Low-Power Mutual Authentication Protocol in Ubiquitous Sensor Networks

조영복; Jeong Yoon Su; Lee， Sang-ho; 김동명

Journal of The Korea Society of Computer and Information

Abbr : JKSCI
2005, 10(2), pp.187-198
Publisher : The Korean Society Of Computer And Information
Research Area : Computer Science

조영복 ¹ , Jeong Yoon Su ² , Lee， Sang-ho ³ , 김동명 ⁴

¹ 충북대학교
² 충북대학교
³ 충북대학교
⁴ 충북대학교

ABSTRACT

All sensors in Ubiquitous sensor network have to communicate with limited battery. If we adopt current authentication, there are difficulties to keep sensor network because heavy calculation in each sensor needs more power and lifetime of sensor could be short relatively because of the effect. This paper suggests network structure which is using and to solve power problem on authentication, and suggests mutual-authentication protocol with low power which supports a session key by mutual-authentication. and manage algorithm with fast calculation to keep the safety by doing key generation, encryption/decryption, authentication instead of each sensor node. Processing time to authenticate sensor node is 2.96% fast in the same subnet, and 12.91% fast in different subnet. Therefore, the suggested way provides expanded lifetime of censor node and is more effective as sensor network size is bigger and bigger.
KEYWORDS

Ubiquitous Sensor Network , Authentication , Security
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