北京邮电大学学报

  • EI核心期刊

北京邮电大学学报 ›› 2012, Vol. 35 ›› Issue (3): 47-51.doi: 10.13190/jbupt.201203.47.gengt

• 论文 • 上一篇    下一篇

保护私有信息的动点距离判定协议及其推广

耿涛1,2,3,李海成4,罗守山1,2,3,贾哲1,2,3   

  1. 1. 北京邮电大学 信息安全中心, 北京 100876; 2. 北京邮电大学 灾备技术国家工程实验室, 北京 100876; 3. 北京安码科技有限公司, 北京 100082; 4. 唐山师范学院 计算机科学系, 唐山 063000
  • 收稿日期:2011-01-26 修回日期:2011-12-15 出版日期:2012-06-28 发布日期:2012-02-29
  • 通讯作者: 耿涛 E-mail:taogeng@bupt.edu.cn
  • 作者简介:耿涛(1983-),男,博士生,E-mail:taogeng@bupt.edu.cn
  • 基金资助:

    国家自然科学基金项目(61121061);国家重大科技专项项目(2011ZX0 3002-005-01)

A Privacy-Preserving Dynamic Point-Point Distance Determination Protocol and Its Extension

GENG Tao 1,2,3,LI Hai-cheng4,LUO Shou-shan1,2,3,JIA Zhe1,2,3   

  1. 1. Information Security Center, Beijing University of Posts and Telecommunications, Beijing 100876, China;2. National Engineering Laboratory for Disaster Backup and Recovery, Beijing University of Posts and Telecommunications, Beijing 100876, China; 3. Beijing SafeCode Technology Company Limited, Beijing 100082, China;4. Department of Computer Science, Tangshan Teachers College, Hebei Tangshan 063000, China
  • Received:2011-01-26 Revised:2011-12-15 Online:2012-06-28 Published:2012-02-29
  • Contact: Tao GENG E-mail:taogeng@bupt.edu.cn
  • Supported by:

    ;National Natural Science Foundation of China;Major Project of the Science and Technology Ministry

摘要:

在半诚实模型下,利用安全点积协议设计出一个保护私有信息的向量相等性判定协议. 基于保护私有信息的向量相等性判定协议设计出保护私有信息的两条直线上动点距离判定协议和n维空间中保护私有信息的两条直线上动点距离判定协议. 对协议的正确性和安全性进行了分析. 最后提出解决保护私有信息的动点距离判定问题的一般性解决方案.

关键词: 密码学, 安全多方计算, 安全计算几何, 向量相等判定, 动点距离判定

Abstract:

With the aid of secure scalar product protocol, a privacy-preserving vector equivalency determination protocol is proposed. Based on privacypreserving vector equivalency determination protocol, a privacy-preserving dynamic point distance determination protocol based on semihonest and an n-dimension privacy -preserving dynamic point distance determination protocol are presented. The correctness and security are also analyzed. At the end, a general solution to a privacypreserving dynamic point distance determination is discussed.

Key words: cryptograph, secure multi -party computation, secure computational geometry, vector equivalency determination protocol, dynamic point distance determination

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