CAJ | 학술논문

针对已有公钥密码系统下代理盲签名的安全性问题及签名方案效率不高的问题，结合Li等人基于证书代理签名的概念，给出了基于证书代理盲签名的定义，并提出一个新的基于证书代理盲签名方案。给出方案的性能分析，分析结果表明新方案不仅能满足代理盲签名的所有安全性质，且签名算法效率也有所提高，更适合实际应用。
침대이유공약밀마계통하대리맹첨명적안전성문제급첨명방안효솔불고적문제，결합Li등인기우증서대리첨명적개념，급출료기우증서대리맹첨명적정의，병제출일개신적기우증서대리맹첨명방안。급출방안적성능분석，분석결과표명신방안불부능만족대리맹첨명적소유안전성질，차첨명산법효솔야유소제고，경괄합실제응용。
For the security problem and the low efficiency of signature schemes under existing public key cryptography system, combining with the concept of certificate-based proxy signature presented by Li et al., gives a definition of certifi-cate-based proxy blind signature, and a new certificate-based proxy signature is proposed. Finally, an analysis of perfor-mance for the scheme is presented, the results show that the scheme can not only meet all required security properties of a proxy blind signature scheme, but the efficiency of signature algorithm is also improved, which is more suitable for practical applications.