一个可验证的动态多秘密共享方案  

A verifiable and dynamic multi-secret sharing scheme

作　　者：张硕英 刘锋 Zhang Shuoying;Liu Feng(School of Computer Science and Technology,Shandong Technology and Business University,Shandong Yantai 246005;School of Mathema and Information Science,Shandong Technology and Business University,Shandong Yantai 246005)

机构地区：[1]山东工商学院计算机科学与技术学院,山东烟台246005 [2]山东工商学院数学与信息科学学院,山东烟台246005

出　　处：《网络空间安全》2020年第11期6-10,34,共6页Cyberspace Security

基　　金：国家自然科学基金面上项目(项目编号:61771294,61972235)

摘　　要：利用结合RSA密码体制和ElGamal签名算法的签密体制、异或运算和Hash函数等工具,提出一个安全的动态可验证多秘密共享方案。方案中的参与者获得子秘密份额时,验证其来源和有效性,避免得到无效的子秘密份额。方案在不安全信道环境下具有一定的抗干扰能力,可以防止非法用户的参与。同时可以防止参与者和分发者的欺骗行为。方案具有高效性和灵活性,同时在秘密分发过程更具安全性。Using the RSA cryptosystem and ElGamal signature algorithm,XOR operation and hash function,a dynamic and verifiable multi-secret sharing scheme has been proposed.When the participant obtains the sub secret share,it verifies its source and validity to avoid getting the invalid sub secret share.The scheme has a certain anti-interference ability in the insecure channel environment,which can prevent the participation of illegal users.At the same time,it can prevent participants and distributors from cheating.This scheme is efficient and flexible,and is more secure in secret distribution process.

关 键 词：多秘密共享 可验证的 动态的 密码学 

分 类 号：TN911.22[电子电信—通信与信息系统]