通信学报
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田有亮1,2,彭长根1,马建峰2,林辉2,杨凯3
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摘要: 在通用可组合框架下研究安全多方计算的公平性问题。在UC框架下,提出公平安全多方计算的安全模型。在模型中形式化定义了公平安全多方加法计算理想函数 和公平安全多方乘法计算理想函数 。然后,基于双线性对技术和承诺方案理想函数 ,在 -混合模型下分别设计公平加法协议 和公平乘法协议 安全实现理想函数 和 。最后,性能分析表明所提协议的有效性,能更好地满足应用需求。
Abstract: The fair problem of secure multiparty computation protocol was investigated in the universally composable framework. A fair secure multiparty computation model with ideal functionalities was firstly formulated such as a fair secure multiparty addition computation and a fair secure multiparty multiplicative computation. Next a fair addition computation protocol and a fair multiplicative computation protocol based on the bilinear paring and the ideal functionality of a commitment scheme was proposed. The proposed protocols can securely realize their ideal functionalities in the hybrid model respectively. Finally, analysis show that these schemes are effective, and it can be more applicable in special situation.
田有亮1,2,彭长根1,马建峰2,林辉2,杨凯3. 通用可组合公平安全多方计算协议[J]. 通信学报.
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https://www.infocomm-journal.com/txxb/CN/Y2014/V35/I2/8