不可连接的前向安全可撤销匿名代理签名体制

摘要

The concept of forward security is introduced into the anonymity-revoking proxy signature, an unlinkabity and anonymity-revoking proxy signature with forward security are proposed in this paper. The feature of the new scheme is that it can protect of the proxy signer's privacy against the other third parties and the proxy signer can generate the proxy signature with forward security by the original signer granted, the verifier can validate the proxy signature, but it cannot confirm the identity of the proxy signer. When the dispute exists, the original signer can unveil the identity of the proxy signer without the trust center involved.%将前向概念引入匿名代理签名中,提出一个不可连接的前向安全可撤销匿名代理签名体制,其特点在于代理签名人的身份除对原始签名人外是保密的,代理签名人可以根据原始签名人的授权产生前向安全的签名,验证者可以验证代理签名的正确性,但无法揭示代理签名人的身份,出现争议时原始签名人可以揭示代理签名人的真实身份,而这个过程不需要可信中心参与.