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高效的无证书强代理签名方案

DOI: 10.13190/jbupt.200806.18.201, PP. 18-21

Keywords: 无证书公钥密码系统,无证书强代理签名,双线性对

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Abstract:

提出无证书强代理签名的定义及安全模型,利用双线性对构造了一个无证书强代理签名方案.该方案能满足无证书公钥体制下强代理签名应具备的所有性质,且在构造过程中只用到普通的hash函数,而避免使用效率低的MapToPoint函数.方案的签名与验证在线计算只需1个标量乘、2个指数和1个双线性对运算,因而它是目前效率最高的无证书强代理签名方案.

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