Telecommunications Science ›› 2011, Vol. 27 ›› Issue (5): 72-76.doi: 10.3969/j.issn.1000-0801.2011.05.018

• Ressearch and development • Previous Articles     Next Articles

Security Problems of CDA Mechanism and Its Solutions

Jun Feng1,Yu Pan2,Xu Chen1   

  1. 1 College of Electronics and Information Engineering,Nanjing University of Technology,Nanjing 211816,China
    2 College of Economics & Management,NanJing University of Technology,Nanjing 211816,China
  • Online:2011-05-15 Published:2011-05-15

Abstract:

CDA(continuous double auction)mechanism is widely used in the fields of e-commerce,but the security issues have gained little attention.In this paper,the related issues about CDA are analyzed and the problem of repudiation,impersonation,forging and hard to verify is pointed out.The RSA public key cryptosystem and digital signature are utilized to solve this problem.In the end,our scheme is proved theoretically to be effective to handle the problem.

Key words: auction, security, RSA, digital, signature

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