无可信中心的可公开验证多秘密共享

发布时间：2018-07-12 11:14

本文选题：秘密共享 + 多秘密共享　；参考：《计算机学报》2014年05期

【摘要】：多秘密共享是通过一次计算过程就可以实现同时对多个秘密进行共享的密码体制,在一般的多秘密共享中,都需要可信中心的参与,由可信中心进行秘密份额的分发.然而,在很多情况下,无法保证可信中心的存在,即使存在可信中心,它也很容易遭受敌手的攻击,成为系统的盲点.该文提出了一个无可信中心的可公开验证多个秘密共享方案,共享的多个随机秘密是由参与成员共同产生的,密钥份额的有效性不仅可以被份额持有者自己验证,而且可以被其他任何成员验证,这使方案具有更广的应用背景,可用于设计电子投票协议、密钥托管协议等.为了适用于无线自组网等新的网络环境,该文也讨论了无可信中心的条件下动态撤出和增加成员的问题.
[Abstract]:Multi-secret sharing is a cryptosystem in which multiple secrets can be shared at the same time through one calculation process. In general multi-secret sharing requires the participation of trusted center and the distribution of secret share by trusted center. However, in many cases, the existence of trusted center can not be guaranteed. Even if there is a trusted center, it is vulnerable to attack by the enemy and becomes the blind spot of the system. In this paper, a publicly verifiable secret sharing scheme with no trusted center is proposed. The shared random secret is generated by the participating members. The validity of the key share can not only be verified by the share holder himself. Moreover, it can be verified by any other member, which makes the scheme have a wider application background, and can be used to design electronic voting protocol, key escrow protocol and so on. In order to be suitable for new network environments such as wireless ad hoc networks, the problem of dynamically withdrawing and adding members without trusted centers is also discussed in this paper.
【作者单位】：青岛大学信息工程学院;山东省科学院山东省计算机网络重点实验室;中国科学院信息工程研究所信息安全国家重点实验室;山东大学网络信息安全研究所;山东大学密码技术与信息安全教育部重点实验室;
【基金】：国家自然科学基金(61272425,61303197,61202475) 青岛市科技计划项目(12-1-4-2-(16)-jch,12-1-4-2-(14)-jch,13-1-4-151-jch) 华为科技基金(YB2013120027) 信息安全国家重点实验室开放课题项目山东省计算机网络重点实验室开放课题项目(SDKLCN-2013-03)资助~~
【分类号】：TN918.4

【共引文献】