混合偏好模型下的分布式理性秘密共享方案

发布时间：2018-03-05 01:11

本文选题：混合偏好模型　切入点：分布式理性秘密共享　出处：《计算机研究与发展》2014年07期 　论文类型：期刊论文

【摘要】：理性秘密共享方案通过扩展参与者的类型后具有更好的适应性,而现有方案中的共享秘密往往依赖于秘密分发者,但在某些特定环境中秘密分发者并不一定存在.通过对传统分布式秘密共享方案的分析,给出了分布式理性秘密共享方案的一般形式化描述;同时,考虑理性参与者的眼前利益和长远利益,提出一种新的理性参与者混合偏好模型;进一步结合机制设计理论的策略一致机制,设计了一个激励相容的信誉讨价还价机制,以此有效约束理性参与者的行为,从而实现了公平的(t,n)(t,n≥2)分布式理性秘密共享方案的构造;通过从信道类型、秘密分发者的在线/离线需求、方案的通用性和偏好模型等方面与目前相关理性秘密共享方案进行对比分析,进一步分析了所提出方案的优势.
[Abstract]:Rational secret sharing schemes have better adaptability by expanding the types of participants, and the shared secrets in existing schemes often depend on secret distributors. However, secret distributors may not exist in some special environments. By analyzing the traditional distributed secret sharing schemes, a general formal description of distributed rational secret sharing schemes is given. Considering the immediate and long-term interests of rational participants, a new mixed preference model of rational participants is proposed, and a reputation bargaining mechanism of incentive compatibility is designed by combining the mechanism design theory with the strategy consistent mechanism. In this way, the behavior of rational participants is effectively restricted, and a fair scheme of distributed rational secret sharing is constructed, which is based on the online / offline requirements of secret distributors from channel types. The generality and preference model of the scheme are compared with the existing rational secret sharing scheme, and the advantages of the proposed scheme are further analyzed.
【作者单位】：贵州大学理学院;贵州大学密码学与数据安全研究所;中国科学院信息工程研究所;
【基金】：国家自然科学基金项目(60963023,61262073,61363068) 贵州省自然科学基金项目(20092113,20132112) 全国统计科学研究计划重点项目(2013LZ46) 贵州大学博士基金项目(2007040,2012024) 贵州大学研究生创新基金项目(2013017,2013018)
【分类号】：TN918.4

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