给出一种基于配对双线性映射的门限代理签名方案。该方案具有一些代理签名方案的新特点:匿名性和可跟踪性。验证者在验证代理签名之后只能确信代理签名是代表原始签名者的签名而无法确定代理签名者身份;当出现争议时,验证者可通过代理群管理员追查出代理签名者的身份。
A threshold proxy signature scheme was presented with bilinear pairings. The scheme had anonymity and traceability. After the proxy signature had been verified, only the signature from delegation of the original signer could be confirmed by the verifier, on the other hand, the identity of the proxy signer could not be known at the same time. In appearing of disputation, the verifier could reveal the real identity of the proxy signer with the help of the GP.