北京邮电大学学报

  • EI核心期刊

北京邮电大学学报 ›› 2006, Vol. 29 ›› Issue (1): 22-25.doi: 10.13190/jbupt.200601.22.lifw

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前向安全的基于椭圆曲线密码体制的签密方案

李方伟, 王 建, 陈广辉   

  1. 重庆邮电学院 移动通信技术重点实验室, 重庆 400065
  • 收稿日期:2005-01-01 出版日期:2006-02-28 发布日期:2006-02-28
  • 通讯作者: 李方伟 E-mail:lifw@cqupt.edu.cn
  • 作者简介:李方伟(1960—),教授,博士,E-mail: lifw@cqupt.edu.cn
  • 基金资助:

    重庆市发改委资金项目(20041072)

Forward Secrecy Sign-Cryption Scheme Based on Elliptic Curve Cryptosystem

LI Fang-wei, WANG Jian, CHEN Guang-hui   

  1. Key Laboratory of Mobile Communication Technology, Chongqing University of Posts and Telecommunications, Chongqing 400065, China
  • Received:2005-01-01 Online:2006-02-28 Published:2006-02-28

摘要:

为实现移动通信中收发双方相互的认证,提出了一种具有前向安全性能的新签密方案. 分析结果表明,新方案不但保留了椭圆曲线密码体制特有的优越特性,并且满足了目前一些现存签密方案都无法提供的前向安全性需求. 当发送方和接收方发生争议时,可以交由公平第3方,即仲裁者去仲裁解决.

关键词: 椭圆曲线体制, 签密, 前向安全, 仲裁者

Abstract:

A new sign-cryption scheme with the feature of forward secrecy was presented in order to realize the authentication during the procedure of mobile communication. The analysis result of scheme shows that superiority in efficiency and secrecy of elliptic curve system has been maintained exactly, the new scheme is sufficient to the forward secrecy unlike those sign-cryption schemes in existence. If two parties in the communication crash with each other, the third one will solve the problem, it means the arbiter.

Key words: elliptic curve cryptosystem, sign-cryption, forward secrecy, arbiter

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