已知签名人的门限代理签名方案

A Threshold Proxy Signature Scheme with Actual Signers

在将典型代理签名方案的授权方式加以改进的基础上,通过引入代理群管理员来分发秘密份额,提出了一个已知签名人的门限代理签名方案.该方案避免了签名的滥用,具有能辨识真正签名人的不可否认性质,抵抗合谋攻击.

Based on improvement of authentication method of typical proxy signature scheme, the secret share was distributed by a proxy group administrator. A threshold proxy signature scheme with known signers was proposed. The scheme has the non-repudiation property. The non-repudiation property provides the scheme the ability to identify the actual signers of the proxy signature, and then to avoid the abuse of signatures. Furthermore, the proposed scheme can withstand conspiracy attack.