A Fair and Off-line Electronic Payment Scheme Based on Elliptic Curve
Yuan Ding · Jisuanji yingyong yanjiu · 2005
This paper proposes a off-line electroni c payment scheme based on the elliptic curve cryptosystem. A payment system by Smart card proposed by S.Brands is improved,and an anonymity-revoking electronic payment system is presented.On the one hand, customer’s privacy can be compromised by the bank or by the payee .On the other hand,the anonymity can be removed by a trusted third party with the help of bank.In this case,the third party can link a payment with corresponding withdrawal and prevent money forgery,laundering,badger game and black mailing. The scheme is suitable for application in Smart card because of using elliptic curve cryptosystem.