基于椭圆曲线的门限代理签名及其身份识别

基于身份识别、离散对数问题和安全的单向函数,提出了一个无需原始签名人的(t,n)门限代理签名方案,使得任意t个或更多个代理签名人可以合作产生对消息的代理签名.新方案隐藏了代理签名人的身份,既保护了代理签名人的隐私,又防止了可能的联合欺骗,还可以在发生分歧时揭示签名参与者的真实身份.

A Threshold Proxy Signature Scheme Based on Identification Scheme

Based on the identification scheme,the security of the discrete logarithmic problem and the one-way function,this paper proposes a new threshold proxy signature scheme without the cooperation of the Original Signer,and or more proxy signers form a designated group of proxy signers which can generate proxy signatures.In this scheme,the proxy signers' identity is hidden.And it can not only protect signers' privacy,but also prevent the joint cheating and reveal the participant signers' actual identities when needed.