环Z_n上圆锥曲线的多级代理多重盲签名

Multiple grade proxy multiblind signature scheme based on conic curves over Z_n

在已知的基于环Zn上圆锥曲线的各种代理方案中,原始签名人和代理签名人只能进行一级代理。但在有些情况下,签名权利需要逐级向下代理,而已知的方案不能满足这种需求。提出了一种基于环Zn上圆锥曲线的多级代理多重盲签名方案。对方案的正确性进行了证明、对方案的安全性进行了分析。

An original signer may authorize a proxy signer for signing a message on behalf of the original signer in the known schemes while the proxy signer based on conic curves over Zn can not continue to authorize the others.But in some cases,the proxy signer needs to continue to authorize the others.So a multiple grade proxy multiblind signature scheme based on conic curves over Zn is proposed.This paper gives proofs of the correctness and the analysis of security of the scheme.