基于LUC密码体制的(t,n)门限秘密共享方案  

A(t,n) secret sharing scheme based on the LUC cryptosystem

作　　者：庞辽军[1] 王育民[1] 

机构地区：[1]西安电子科技大学综合业务网理论与关键技术国家重点实验室,陕西西安710071

出　　处：《西安电子科技大学学报》2005年第6期927-930,共4页Journal of Xidian University

基　　金：973国家重大项目资助(G1999035804);"十五"国家部委预研资助项目(Y1010122)

摘　　要：基于LUC密码体制提出了一个(t,n)门限秘密共享方案,使用参与者的私钥作为他们的秘密份额,秘密分发者不需要进行秘密份额的分配.秘密份额的长度小于或等于秘密的长度.在秘密重构过程中,每个合作的参与者只需提交一个由秘密份额计算的伪份额,且任何人都能够立即检验每个合作的参与者是否进行了欺骗.该方案可用来共享任意多个秘密,而不必修改各参与者的秘密份额.方案的安全性是基于LUC密码体制和Sham ir的(t,n)门限方案的安全性.A （t,n） threshold secret sharing scheme based on the LUC eryptosystem was proposed. In the new scheme, each participant＇s private-key is used as his secret share and the secret dealer does not have to distribute each participant＇s secret share. All these shares are shorter than or as short as the shared secret. In the recovery phase, each cooperative participant only needs to submit a pseudo-share instead of his secret share and anyone is allowed to check whether a cooperative participant provides the true information or not immediately. The secret shares do not need to be changed when sharing multiple secrets. The security of this scheme is the same as that of the LUC cryptosystem and Shamir＇s （t,n） threshold secret sharing scheme.

关 键 词：秘密共享 门限方案 LUC密码体制 

分 类 号：TP918[自动化与计算机技术]