高技术通讯（英文版）2005，Vol.11Issue(1)：17-19,3.
An improved identity-based proxy ring signature scheme
An improved identity-based proxy ring signature scheme
摘要
Abstract
Proxy ring signature schemes have been shown to be useful in various applications, such as electronic polling, electronic payment, etc. In this paper, we point out that Lang's scheme is unreasonable and propose an improved Identity-based proxy ring scheme from bilinear pairings which is reasonable and overcomes the deficiencies of Lang's scheme. Our scheme can prevent the original signer from generating the proxy ring signature, thus the profits of the proxy signer are guaranteed. In addition, our scheme satisfies all the security requirements of proxy ring signature, I.e. Signer-ambiguity, non-forgeability, verification, non-deniability and distinguishability. As compared with Zhang's scheme, our scheme is a computational efficiency improvement for signature verification because the computational cost of bilinear pairings required is reduced from O(n) to O(1).关键词
digital signature/proxy signature/ring signature/identity-based cryptography/bilinear pairingsKey words
digital signature/proxy signature/ring signature/identity-based cryptography/bilinear pairings分类
信息技术与安全科学引用本文复制引用
Lang Weimin,Yang Zongkai,Cheng Wenqing,Tan Yunmeng..An improved identity-based proxy ring signature scheme[J].高技术通讯（英文版）,2005,11(1):17-19,3.基金项目
Supported by the High Technology Research and Development Programme of China (No. 2001AA142170) and the National Natural Science Foundation of China (No. 90104033). （No. 2001AA142170）
