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随着手机“电子钱包”功能的完善,移动支付可以广泛用于小额支付的电子商务中。然而现有的移动银行系统是基于银行卡,需要银行的在线参与。已有的离线支付系统不支持电子现金找零,造成实际应用的困难。一些研究文献对离线的可分电子现金技术进行了研究,但系统效率方面还没有理想的解决方案。基于椭圆曲线的移动可分电子现金技术适合手机或掌上终端本身具有内存小、计算量小、存储量少、网络传输流量较低等特点,可以很好地保证电子现金的真实性、用户的匿名性以及电子现金流通的公平性,防止伪造和重复花费电子现金。
With the perfection of cell phone “e-wallet ”, mobile payment can be widely used in the e-commerce of micro payment. However, the existing mobile banking system is based on bank cards and requires the bank’s online participation. The existing offline payment system does not support electronic cash change, resulting in practical difficulties. Some research literature has studied off-line separable e-cash technology, but there is no ideal solution to system efficiency. E-curvilinear mobile separable electronic cash technology is suitable for mobile phone or handheld terminal itself has a small memory, small amount of computing, less storage, low network traffic and other characteristics, can well ensure the authenticity of electronic cash, the user’s anonymity Sex and the fairness of the electronic cash flow to prevent counterfeiting and duplication of electronic cash.