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A Proxy Blind Signature Scheme and an Off-Line Electronic Cash Scheme被引量：4
《Wuhan University Journal of Natural Sciences》2013年第2期117-125,共9页LIU Jianwei LIU Jianhua QIU Xiufeng 
Supported by the National Natural Science Foundation of China(61272501);the National Key Basic Research Program(973Program)(2012CB315905);the Specialized Research Fund for the Doctoral Program of Higher Education(20091102110004)
To support withdrawing and storing money from all levels of the bank for the customers in the real world, in this paper, we propose a proxy blind signature scheme and an off-line e-cash scheme based on the new proxy b...
关键词：off-line electronic cash proxy blind signature ran-dom oracle model electronic commerce 
Off-Line Dictionary Attack on Password-Based Authenticated Key Exchange Protocols
《Wuhan University Journal of Natural Sciences》2012年第6期468-472,共5页XU Chungen YANG Yanjiong 
Supported by the Natural Science Foundation of Jiangsu Province (Key Program) (BK2011023)
In 2010,Lee et al proposed two simple and efficient three-party password-authenticated key exchange protocols that had been proven secure in the random oracle model.They argued that the two protocols could resist offl...
关键词：key exchange PASSWORD OFF-LINE dictionary attack provable security 
Research on Transferable Off-Line Electronic Cash System
《Wuhan University Journal of Natural Sciences》2008年第6期749-752,共4页LIU Yichun 
Supported by the Natural Science Foundation of Zhejiang Province, China (Y106802);Guangdong Provincial Science and Technology Planning Project of China (2007B010200035)
In this paper, a new cash scheme is proposed for electronic payment system, in which the cash can be transferred several times. When this kind of cash is used, the fraud such as double spending can be found out but th...
关键词：electronic cash transferability ANONYMITY 
Research on the Validity Duration ofOff-Line E-cash
《Wuhan University Journal of Natural Sciences》2004年第6期913-917,共5页PENGBing YANGZong-kai WUShi-zhong 
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To solve the drawback of the present electionic cash (E-cash) schemes that the size of bank's transcripts database expands without bound, the concept of validity duration of E-cash is introduced in this paper. Through...
关键词：E-CASH restrictive blind signature validity duration non-trivial representation double spending 
A Fair Off-Line E-Cash System with Group Signature
《Wuhan University Journal of Natural Sciences》2004年第5期745-748,共4页SUYun-Xue ZHUYue-fei 
theNationalNaturalScienceFundationofChina(90204015)
This paper describes the research results and development of fair off-line e-cash systems so far, and points out that in these systems, the bank can compute the double-spender’s account secret key, thus the bank can ...
关键词：electronic cash anonymity control group signature 
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