摘要： 利用双线性对构造一个基于身份的门限代理签名方案，生成的签名长度短，签名者可以将签名和自己的公钥同时发送给接收方，接收方通过验证对方公钥确实由私钥生成中心颁发，从而避免向第三方请求签名者公钥，提高方案效率。分析结果表明，该方案安全可靠，具有匿名性。

关键词: 门限代理签名, 基于身份的签名, 双线性对, 名性

Abstract: This paper structures an ID-based threshold proxy signature scheme by using bilinear pairings. It is a short signature. The signers send the signature together with their public keys to the receiver. Then, the receiver can confirm that the signers’ public keys are granted by Private Key Generator(PKG). through the verification. In this case, it avoids requesting signers’ public keys from a third party, thus enhancing the effectiveness. Analysis results show that the scheme not only satisfies security properties, but also has the property of anonymity.

Key words: threshold proxy signature, ID-based signature, bilinear pairings, anonymity

中图分类号: 

• TP39