| 保护私有信息的三角不等式判定协议及其应用 |
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| 引用本文： | 罗守山,廖干才,刘文.保护私有信息的三角不等式判定协议及其应用[J].北京邮电大学学报,2009,32(1):47-51. |
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| 作者姓名： | 罗守山 廖干才 刘文 |
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| 作者单位： | 北京邮电大学 网络与交换技术国家重点实验室,北京,100876;北京邮电大学 网络与信息攻防技术教育部重点实验室,北京,100876;北京邮电大学 灾备技术国家工程实验室,北京,100876 |
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| 基金项目： | 国家重点基础研究发展规划(973计划)，国家自然科学基金，北京市自然科学基金 |
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| 摘 要： | 针对传统的三角形形状判定算法不能满足要求.运用安全多方点积协议设计了一种在半诚实模型下保护私有信息的三角不等式判定协议;分析和证明了该协议的正确性、安全性和复杂性;并利用该协议解决了保护隐私的三角形构成判定问题,三角形形状判定问题以及向量比较问题.
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| 关 键 词： | 密码学 安全多方计算 安全几何计算 三角不等式判定 |
| 收稿时间： | 2008-4-17 |
| 修稿时间： | 2008-8-17 |
A Privacy-Preserving Triangle Inequality Determination Protocol and Its Applications |
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| LUO Shoushan,LIAO Gancai,LIU Wen.A Privacy-Preserving Triangle Inequality Determination Protocol and Its Applications[J].Journal of Beijing University of Posts and Telecommunications,2009,32(1):47-51. |
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| Authors: | LUO Shoushan LIAO Gancai LIU Wen |
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| Affiliation: | 1.State Key Laboratory of Networking and Switching Technology;Beijing University of Posts and Telecommunications;Beijing 100876;China;2.Key Laboratory of Network and Information Attack and Defence Technology;Ministry of Education;3.National Engineering Laboratory for Disaster Backup and Recovery;Beijing Universityof Posts and Telecommunications;China |
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| Abstract: | In triangle determination, if the side information is confidential to others, and provided by different users, it is the privacy-preserving triangle shape determination problem without solution by traditional method. By using scalar product protocol, a privacy-preserving triangle inequality determination protocol based on semi-honest is proposed, and the correctness, security and complexity are analyzed. The solution to privacy- preserving triangle shape determination problem and privacy- preserving vector comparison problem are proposed. |
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| Keywords: | cryptography secure multi-party computation secure geometry computation triangle inequality |
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