CERTIFICATELESS SIGNATURE AND BLIND SIGNATURE  

作　　者：Zhang Lei Zhang Futai 

机构地区：[1]College of Mathematics and Computer Science, Nanjing Normal University, Nanjing 210097, China

出　　处：《Journal of Electronics(China)》2008年第5期629-635,共7页电子科学学刊（英文版）

基　　金：the National Natural Science Foundation of China (No.60673070);the Natural Science Foundation of Jiangsu Province (No.BK2006217);the Open Project of the Key Lab. on Computer Networks and Information Security (Xidian University) of Ministry of Education of China(No.20040105)

摘　　要：Certificateless public key cryptography is a new paradigm introduced by Al-Riyami and Paterson.It eliminates the need of the certificates in traditional public key cryptosystems and the key escrow problem in IDentity-based Public Key Cryptography(ID-PKC).Due to the advantages of the certificateless public key cryptography,a new efficient certificateless pairing-based signature scheme is presented,which has some advantages over previous constructions in computational cost.Based on this new signature scheme,a certificateless blind signature scheme is proposed.The security of our schemes is proven based on the hardness of computational Diffie-Hellman problem.Certificateless public key cryptography is a new paradigm introduced by Al-Riyami and Paterson. It eliminates the need of the certificates in traditional public key cryptosystems and the key escrow problem in IDentity-based Public Key Cryptography （ID-PKC）. Due to the advantages of the certificateless public key cryptography, a new efficient certificateless pairing-based signature scheme is presented, which has some advantages over previous constructions in computational cost. Based on this new signature scheme, a certificateless blind signature scheme is proposed. The security of our schemes is proven based on the hardness of computational Diffie-Hellman problem.

关 键 词：Certificateless cryptography Digital signature Blind signature Certificateless blind signature Computational Diffie-Hellman （CDH） problem 

分 类 号：TN918.1[电子电信—通信与信息系统]