一般访问结构上的多秘密共享方案  

Multi-Secret Sharing Scheme with General Access Structures

作　　者：李慧贤[1] 程春田[2] 庞辽军[3] 

机构地区：[1]大连理工大学计算机科学与工程系,辽宁大连116024 [2]大连理工大学水电与水信息研究所,辽宁大连116024 [3]西安电子科技大学综合业务网国家重点实验室,陕西西安710071

出　　处：《华南理工大学学报（自然科学版）》2006年第6期95-98,共4页Journal of South China University of Technology(Natural Science Edition)

基　　金：国家自然科学基金资助项目(50479055);国家973重大项目(G1999035805)

摘　　要：为扩展多秘密共享的应用范围,基于Sham ir的门限秘密共享方案,提出了一般访问结构上的多秘密共享方案.该方案与现有方案不同的是:一次秘密共享过程可以同时共享任意多个秘密;系统中各个参与者的秘密份额可以重用,其长度等于一个秘密的长度.分析表明,与现有方案相比,该方案降低了秘密分发算法和秘密重构算法的计算复杂度,实现了多个秘密的共享,提高了系统性能.In order to widen the application of multi-secret sharing schemes, a multi-secret sharing scheme with general access structures was proposed based on Shamir＇ s threshold secret sharing scheme, in which multiple secrets are shared in each sharing session, and the secret shadow of each participant is reused, with a length as long as that of one shared secret. All these are different from the existing schemes. Analytical results show that, as compared with the existing schemes, the proposed scheme reduces the computational complexity of secret distribution and secret reconstruction algorithms and that it implements the sharing of multiple secrets, thus improving the system performance.

关 键 词：信息安全 多秘密共享 访问结构 

分 类 号：TP918[自动化与计算机技术]