期刊文献+
共找到2篇文章
< 1 >
每页显示 20 50 100
2015年10月20日人民币外汇牌价
1
《中国有色冶金》 CAS 北大核心 2015年第6期85-,共1页
关键词 人民币外汇牌价 加拿大元 卖出价 新西兰元 澳门元 澳大利亚元 挪威克朗 瑞典克朗 丹麦克朗 货币名
下载PDF
Anonymity control in electronic check systems
2
作者 马春光 Yang Yixian Hu Zhengming 《High Technology Letters》 EI CAS 2005年第4期355-358,共4页
Electronic check systems, as one of electronic payment systems, are more desirable than other electronic cash systems. In the system, only a single cheek is used to pay any price that is not more than the face value. ... Electronic check systems, as one of electronic payment systems, are more desirable than other electronic cash systems. In the system, only a single cheek is used to pay any price that is not more than the face value. The main problem in check systems is to design an efficient refund mechanism that makes refired cheeks undistinguished from initial checks during payment and deposit. The problem of anonymity control also called fairmess is also an important issue in check systelns. All check systems yet are unconditional anonymity that opens the door to misuse for crime such as laundering and blackmailing. In this paper, the notion of anonylnity revocation is introduced to electronic check system for the fitst thne, and a model of fair electronic check system is proposed. An effieient fair online electronic check system with reusable refund is presented. In the system, a passive trustee is elnployed to revoke the anonymity of unhonest users. Moreover, the system solves the reusability problem of refunds thanks to the RSA-based partially signature. The system is efficient and meets all basic security requirements. 展开更多
关键词 electronic check anonymity revocation RSA-based partially blind signature
下载PDF
上一页 1 下一页 到第
使用帮助 返回顶部