摘要： 与基于证书的传统公钥密码体制不同，无证书密码体制不需要对证书管理的额外开销，避免了基于身份的公钥密码体制密钥托管问题。提出一种无证书代理签名方案，该方案满足代理签名的不可伪造性、不可否认性，可以防止签名权力的滥用且效率较高。

关键词: 无证书签名方案, 双线性对, 代理签名

Abstract: Different from traditional public key cryptosystem, certificateless public key cryptosystem eliminates the extra spending of certificate management and the key escrow problem in identity based public key cryptosystem. This paper proposes a certificateless proxy signature scheme with the requirement of proxy signature unforgeal be property, non-repudiation. It can avoid abuse of signature power and has high efficiency.

Key words: certificateless signature scheme, bilinear pairing, proxy signature

中图分类号: 

• TP309