基于身份的访问结构上的秘密共享方案  

An ID-based secret sharing scheme on access structure

作　　者：黄梅娟[1] 

机构地区：[1]宝鸡文理学院数学系,陕西宝鸡721013

出　　处：《宝鸡文理学院学报（自然科学版）》2011年第3期22-24,共3页Journal of Baoji University of Arts and Sciences(Natural Science Edition)

基　　金：陕西省教育厅专项科研计划项目(2010JK398)

摘　　要：目的设计一个安全的访问结构上的秘密共享方案。方法借助Girault密钥交换协议进行设计。结果与结论设计了一个基于身份的访问结构上的秘密共享方案。新方案中用户自己选择私钥并作为其秘密份额,无需秘密分发者为每个用户分发秘密份额;同时,参与者利用自己的私钥可以共享任意多个秘密;整个方案中计算量小且不需要安全信道,更实用。Aim To propose a secure secret sharing scheme on access structure.Methods Girault’s key exchange protocol is employed to design the said scheme.Results and Conclusion An ID-based secret sharing scheme on access structure is designed.And then,its security is investigated and the performance analysis is made.Although each participant’s private key is used as his secret shadow selected by himself,these shadows can be reused in multiple sharing sessions without being updated.As for the scheme,moreover,it requires no secret channel and less computation,so the secure secret sharing scheme on access structure can be more practical.

关 键 词：密钥交换 秘密共享 访问结构 欺诈 

分 类 号：TP309[自动化与计算机技术—计算机系统结构]