多重代理多重盲签名方案

多重代理多重盲签名方案综合了多重代理多重签名方案和盲签名方案的优点,它是由一组原始签名人授权给一组代理签名人,并且这组代理签名人并不知道消息的具体内容。基于离散对数问题提出广播多重代理多重盲签名方案和有序多重代理多重盲签名方案,通过对其安全性分析,两类方案均满足多重代理多重签名的安全性及盲签名的盲性和不可链接性。

Multi-Proxy Blind Multi-Signature Scheme

Multi-proxy blind multi-signature satisfies the security properties of both the multi-proxy multi-signature and blind signature. It permits that a group of original signers authorize a group of proxy signers who have no idea about the concrete content of the message. Based on DLP, a new broadcasting multi-proxy blind multi-signature and a new sequential multi-proxy blind multi-signature are proposed. Security of the new schemes is analyzed. Both of them satisfy the security requirement of the multi-proxy multi-signature scheme and the unforgeability and blindness for the blind signature.