Paper 2010/003

Efficient Online/Offline Identity-Based Signature for Wireless Sensor Network

Joseph K. Liu, Joonsang Baek, Jianying Zhou, Yanjiang Yang, and Jun Wen Wong


In this paper, we present an \emph{online/offline identity-based signature} scheme for the wireless sensor network (WSN). We argue that due to significant reduction in computational and storage costs, our scheme is particularly suitable for the WSN environment with severely constrained resources. One of the interesting features of our scheme is that it provides \textit{multi-time} usage of the offline storage, which allows the signer to re-use the offline pre-computed information in polynomial time, in contrast to \textit{one-time} usage in all previous online/offline signature schemes. As evidence of the practicality and feasibility of our scheme to be used in the WSN environment, we provide an actual implementation result of our scheme on the MicaZ platform.

Available format(s)
Public-key cryptography
Publication info
Published elsewhere. To appear, International Journal of Information Security (IJIS)
Contact author(s)
ksliu @ i2r a-star edu sg
2010-05-14: revised
2010-01-07: received
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Short URL
Creative Commons Attribution


      author = {Joseph K.  Liu and Joonsang Baek and Jianying Zhou and Yanjiang Yang and Jun Wen Wong},
      title = {Efficient Online/Offline Identity-Based Signature for Wireless Sensor Network},
      howpublished = {Cryptology ePrint Archive, Paper 2010/003},
      year = {2010},
      note = {\url{}},
      url = {}
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