| 一种改进的无可信第三方的两方安全议价协议 |
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| 引用本文： | 石伟敏,彭长根.一种改进的无可信第三方的两方安全议价协议[J].贵州大学学报(自然科学版),2009,26(4):87-90. |
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| 作者姓名： | 石伟敏 彭长根 |
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| 作者单位： | 贵州大学,理学院,贵州,贵阳,550025 |
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| 基金项目： | 贵州省高层次人才科研条件特助经费项目，贵州省自然科学基金项目，贵州大学博士基金项目 |
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| 摘 要： | 提出一种基于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,防止了议价成功后,双方对议价的篡改从而欺骗对方,并且不需要第三方的参与,最终的成交价格均可由议价双方计算得到。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。
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| 关 键 词： | 议价 百万富翁问题 同态公钥加密体制 |
A Improved Secure Two-Party Bargaining Protocol without Third Trusted Party |
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| SHI Wei-min,PENG Chang-gen.A Improved Secure Two-Party Bargaining Protocol without Third Trusted Party[J].Journal of Guizhou University(Natural Science),2009,26(4):87-90. |
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| Authors: | SHI Wei-min PENG Chang-gen |
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| Institution: | (College of Science, Guizhou University, Guiyang 550025, China) |
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| Abstract: | A secure two-party bargaining protocol is proposed which is based on Pallier homomorphic public key cryptosystem. The agreement offered the privacy of information and the right of the results. After the success of bargaining , it prevents one party from tampering with the agreement and thus to deceive the other party. The a- greement does not require third-party. The final price can be calculated by the parties of bargaining. The analy- sis of complexity and security shows that the efficiency and security features of the agreement is higher. |
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| Keywords: | bargaining millionaires problem homomorphic public key cryptosystem |
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