Copyright notice: The copyright of the papers available online had already been transferred to the corresponding organizations or presses. We make the paper available exclusively for the academic research community.

Other Publications (in Chinese):

  • S. Xu. A Study in Digital Currency. PhD Dissertation, Dec. 1999, Department of Computer Science, Fudan University, Shanghai, China.

  • S. Xu, G. Zhang, and H. Zhu. A Self-Delegation System and the Knowledge Complexity of Problems. Journal of Software, Vol. 10, No. 2, February 1999, pp 170-174.

  • S. Xu and G. Zhang. Encryption Mechanism for Routing Information Based on the Internet Protocol. Computer Research and Development, Vol. 35, No. 8, August 1998, 753-759

  • S. Xu, G. Zhang, and H. Zhu. Recent Advances in Modern Cryptography. NCYCS’98.

  • S. Xu and M. Hu. Security Strategy for Oracle-Based Application Systems. Computer Engineering and Design, Vol. 18, No. 4, April 1997, pp 43-38.

  • S. Xu and M. Hu. Prospects on Database Security. Computer Engineering, Vol. 23, No. 3, March 1997, pp 50-53.

  • S. Xu and M. Hu. The Storage and Retrieve Techniques for Object-Oriented Multimedia DataBase Systems. Computer Engineering, Vol. 22, No. 5, May 1996, pp 14-17.

  • S. Xu and M. Hu. Database Based on Spatial Algebra. Software, Vol. 4, No. 3, March 1996, pp 20-23.