Wang Jian

Publications (2)0 Total impact

• Conference Proceeding: Cryanalysis on a Nonrepudiable Threshold Proxy Signature Scheme with Known Signers

  Hongguang Xiao, Zuowen Tan, Wang Jian
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  ABSTRACT: In the paper, we analyze the security of C.-L. Hsu et al.'s threshold proxy signature scheme. The scheme suffers from universal forgery and does not hold nonrepudiation. An adversary can forge (t, n) threshold proxy signature on any message m. We propose an improvement to remedy the weakness of C.-L Hsu et al.'s scheme.
  Network and Parallel Computing Workshops, 2007. NPC Workshops. IFIP International Conference on; 10/2007
• Conference Proceeding: The geometric way of portfolio investment

  Tu Xinshu, Wang Jian
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  ABSTRACT: By setting up a critical line equation of portfolio investment without or within a non-negative restriction, we advance a method to find out the optimal weight of portfolio investment, whether its yield or its risk is given
  Intelligent Control and Automation, 2000. Proceedings of the 3rd World Congress on; 02/2000