计算机应用 ›› 2005, Vol. 25 ›› Issue (02): 403-406.DOI: 10.3724/SP.J.1087.2005.0403

• 信息安全 • 上一篇    下一篇

基于数字水印和数字签名的电子支票支付系统

戴华,张林聪,李炳法   

  1. 四川大学计算机学院
  • 出版日期:2005-02-01 发布日期:2005-02-01

E-cheque payment system based on digital watermarking and digital signature

DAI Hua,ZHANG Lin-cong,LI Bing-fa   

  1. School of Computer Science and Engineering, Sichuan University
  • Online:2005-02-01 Published:2005-02-01

摘要:

探讨了当前电子商务支付中电子支票的安全问题,分析了其发展的形势及存在的安全缺陷,提出了一种结合数字水印和数字签名的安全保障机制。该机制采用了双重身份认证方案和水印内容认证方案,使得非法接触以及修改电子支票,伪造其内容都是不可能的。分析表明,该方案使得电子支票具有认证精度高、可信度高、安全性强等特点。

关键词: 电子支票, 数字水印, 数字签名, 半易碎水印

Abstract:

 The secure problems of E-cheque used in electronic commerce payment were studied. Based on the analysis of the developing circumstance and the security gap of it, a security guarantee system combining watermarking and digital signature were proposed. The double entity authentication and watermarking content authentication made it impossible to gain illegal access to E-cheque, to edit or to forge it. According to the analysis, the security, creditability and authenticity of the E-cheque can be achieved by the system.

Key words: E-cheque, digital watermarking, digital signature, semi-fragile watermarking

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