门限混合代理多重签名方案  

Threshold Hybrid Proxy Multi-signature Scheme

作　　者：王勇兵[1] 

机构地区：[1]河北师范大学附属民族学院,石家庄050091

出　　处：《计算机工程》2012年第9期131-133,共3页Computer Engineering

基　　金：河北省教育厅科研基金资助项目(Z2011155);河北师范大学科研基金资助项目(L2010Q15)

摘　　要：混合代理多重签名要求所有签名人共同产生签名,使方案的灵活性和实用性受限。针对该问题,通过引入门限签名,提出一个(t,n)门限混合代理多重签名方案,在n个签名人组成的签名群中,只需t个或t个以上的签名人同意就可以完成签名。理论分析结果表明,该方案满足不可伪造性、不可否认性、可鉴别性、混合代理多重签名性和门限签名性,且效率高于原方案。Flexibility and practicability of hybrid proxy multi-signature are restricted bythe property that all of the signers produce signature together. In order to solve the problem, this paper proposes a （t, n） Threshold Hybrid Proxy Multi-signature（THPM） scheme combing with the threshold signature. A THPM is collaboratively generated by some original signers and some proxy signers on behalf of their original signers in the scheme. Only when t or more than t signers agree, the threshold number group members can produce a valid THPM in the signing group. Theoretical analysis proves that THPM not only has unforgeahility, nonrepudiablity, distinguishability and quality of hybrid proxy multi-signature and threshold signature, but also is more efficient than original scheme.

关 键 词：数字签名 代理签名 代理多重签名 多重代理多重签名 混合代理多重签名 门限签名 

分 类 号：TP309[自动化与计算机技术—计算机系统结构]