| 一种改进的两方安全议价协议 |
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| 引用本文： | 赵洋,刘勇,王佳昊,秦志光.一种改进的两方安全议价协议[J].电子科技大学学报(社会科学版),2007(3). |
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| 作者姓名： | 赵洋 刘勇 王佳昊 秦志光 |
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| 作者单位： | 电子科技大学计算机科学与工程学院 成都610054 |
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| 基金项目： | 教育部博士点基金资助项目(20050614018)，四川省科技攻关计划项目(05GG007-011-01) |
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| 摘 要： | 提出了一种基于Paillier同态公钥密码体制的两方安全议价协议。该协议在保障出价信息的私密性和结果正确的前提下,协议参与双方可以完成对商品交易价格的协商,仅在价格协商成功的情况下由第三方参与计算出最终的成交价格。通过对复杂度和安全性的分析可知,该协议具有较高的执行效率和安全特性,在电子商务应用中具有一定的实用价值。
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| 关 键 词： | 价格协商 同态公钥密码体制 百万富翁问题 安全两方计算 |
An Improved Secure Two-Party Bargaining Protocol |
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| ZHAO Yang,LIU Yong,WANG Jia-hao,QIN Zhi-guang.An Improved Secure Two-Party Bargaining Protocol[J].Journal of University of Electronic Science and Technology of China(Social Sciences Edition),2007(3). |
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| Authors: | ZHAO Yang LIU Yong WANG Jia-hao QIN Zhi-guang |
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| Abstract: | In this paper a secure two-party bargaining protocol is proposed which is based on Pallier homomorphic public key cryptosystem. The participant can make a bargain with another one by implementing the protocol. During the protocol, the privacy of input and the correctness of output should be preserved. The third party will participate in working out the final price only under the condition of success agreement. Through the analysis of complexity and security, this protocol holds higher implementing efficiency and security characters, and therefore has application value in the e-commerce. |
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| Keywords: | bargaining homomorphic public key cryptosystem millionaires' problem secure two-party computation |
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