Secure and efficient anonymous proxy signature scheme in the random oracle model  

作　　者：ZHANG De-dong MA Zhao-feng NIU Xin-xin LI Guo-you 

机构地区：[1]Information Security Center, Beijing University of Posts and Telecommunications [2]Institute of Computing Technology, China Academy of Railway Sciences

出　　处：《The Journal of China Universities of Posts and Telecommunications》2013年第4期87-92,共6页中国邮电高校学报（英文版）

基　　金：supported by the National Natural Science Foundation of China (61121061, 90812001, 61272519)

摘　　要：Anonymous proxy signature scheme can provide the privacy protection for the proxy signer. Recently, Yu et al. proposed an anonymous proxy signature, which can be viewed as the organic combination of proxy signature and ring signature. However, the efficiency is low. In this paper, we propose an efficient and secure proxy signature with the properties of anonymity and traceability, and it is provably secure in the random oracle model. Compared with Yu et al.＇s scheme, the scheme has higher efficiency.Anonymous proxy signature scheme can provide the privacy protection for the proxy signer. Recently, Yu et al. proposed an anonymous proxy signature, which can be viewed as the organic combination of proxy signature and ring signature. However, the efficiency is low. In this paper, we propose an efficient and secure proxy signature with the properties of anonymity and traceability, and it is provably secure in the random oracle model. Compared with Yu et al.＇s scheme, the scheme has higher efficiency.

关 键 词：anonymous proxy signature bilinear pairings random oracle model 

分 类 号：TN918.1[电子电信—通信与信息系统]