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Practical Identity-Based Signature for Wireless Sensor Networks

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3 Author(s)
Fagen Li ; School of Computer Science and Engineering, University of Electronic Science and Technology of China, Chengdu 611731, China, and the Institute of Mathematics for Industry, Kyushu University, Fukuoka 819-0395, Japan ; Di Zhong ; Tsuyoshi Takagi

Authentication is an important security requirement for wireless sensor networks. Digital signature plays a crucial role to provide integrity, authentication and non-repudiation of data. In this letter, we propose a practical identity-based online/offline signature scheme for wireless sensor networks. Our scheme splits the signature generation into two phases: offline phase and online phase. In the offline part, most heavy computations are done without the knowledge of a message. In the online stage, only light computations are done when the message is known. As compared with the existing four pairing-based identity-based online/offline signature schemes, our scheme has the lowest computational cost.

Published in:

IEEE Wireless Communications Letters  (Volume:1 ,  Issue: 6 )