基于椭圆曲线的移动可分电子现金研究  

Study on Mobile Divisible E-cash Based on Elliptic Curves

作　　者：黄婷[1] 徐守志[1] 

机构地区：[1]三峡大学计算机与信息学院,宜昌443002

出　　处：《武汉理工大学学报》2010年第23期150-153,共4页Journal of Wuhan University of Technology

基　　金：湖北省教育厅自然科学基金(Q20091308)

摘　　要：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 development of mobile electronic wallet,mobile payment can be widely applied to micro-payment e-commerce.However,current mobile bank systems are based on credit cards,which need online support of banks.And existing off-line payment systems can＇t provide divisible e-cash,which impede their practical application.Some literatures focus on off-line divisible e-cash,but there are few ideal solutions on system efficiency.It is suitable for mobile phone or handheld terminal with limit of memory size,calculation capacity,storage and network bandwidth,and can protect users＇privacy,security of e-cash,customers＇anonymity and fairness of e-cash which mobile divisible e-cash technology based on elliptic curves.It can prevent forgery and double-spending electronic cash as well.

关 键 词：电子现金 可分性 椭圆曲线 移动支付 小额支付 

分 类 号：TP393.08[自动化与计算机技术—计算机应用技术]