Research on Transferable Off-Line Electronic Cash System

来源 :Wuhan University Journal of Natural Sciences | 被引量 : 0次 | 上传用户:yztny
下载到本地 , 更方便阅读
声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架
论文部分内容阅读
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 doubl spending can be found out but the bank and the trusted party need not be involved online in each transaction. This cash system i anonymous in normal transactions. But if a fraud happens, th trusted party can withdraw the anonymity to find out the cheater The new cash scheme is transferable, anonymous, offline an efficient. In this paper, a new cash scheme is proposed for electronic payment system, in which the cash is used, the fraud such as doubl spending can be found out the bank and the trusted party. need not be involved online in each transaction. But if a fraud happens, th trusted party can withdraw the anonymity to find out the cheater The new cash scheme is transferable, anonymous, offline an efficient.
其他文献
徐青艺术简历 1965 生于苏州 1988 中央美院油画系结业,现任教于苏州市工艺美术技校作品《低坡》参加省油画精品晨并获一等奖 作品《境》参加北京’94油画沙龙展 作品《雀儿
为了在具高有机碳和气含量的主动大陆边缘研究流体和气体的运移,对巴基斯坦岸外Makran增生楔进行了调查。沿增生楔在250~800m水深和2500m水深处发现了冷渗漏。这里从水柱沉积物中辐射出来的细菌
张炳宝,甘肃一位“民间发明人”.2000年,他成功改进了用于干旱地区深层渗水滴灌的设施.但在此后4年里,他在推广发明中处处碰壁,甚至被十多家“科技推广部门”骗取“科技推广
本刊讯(记者李志明) 经国务院批准,1月15日国家发展改革委公布了《关于对部分重要商品及服务实行临时价格干预措施的实施办法》(以下简称《办法》),规定了实行临时价格干预措施的品种范围、干预形式和具体办法。  启动临时价格干预措施,是根据《价格法》有关规定,在价格显著上涨或者有可能显著上涨的情况下,采取的临时性干预措施。  《办法》规定,这次启动的临时价格干预措施主要是提价申报和调价备案。提价申报和
二D~圈~郑贤红版画作品 Two D ~ circle ~ Zheng Xianhong print works
初见闽荫南,的确貌不惊人,瘦小的个子,低声细语地说话,往往容易被人忽略。但是,你只要~旦进入闽荫南的艺术生活和心灵生活,你将会被他吸引,受他感染,甚至被他身上的某些品行所震撼。这
The present study examines the relationship between observed variations of regional hydrographic elements and concurrent large scale climatological parameters.
期刊
6辆由我国自主开发生产的HappyMessenger纯电动汽车走出国门,可喜可贺。因为世界汽车工业发展到目前,美、日、德等发达国家一直统领天下,瓜分了包括中国在内的几乎所有市场,
实际生产低合金高强度钢板中,Q345B的钢板合同量比率相对较大,在实际生产过程中发现,在生产检验过程中时有探伤不合格出现,甚至部分时间段会出现较大批量计划外,为查明钢板探
In this paper,two schemes proposed by Julian(1984)and Krishnamauti(1986)are used toretrieve the tropical divergent wind at 200 hPa and 850 hPa from the satelli