【摘要】 本文对可扩展匿名性的网络支付协议进行了分析,并分析了它的基于角色的访问控制(RBAC)。协议用电子现金支付交易。这是一个离线的支付协议,它可以阻止用户不止一次花费同一电子现金。如果用户担心他们的身份泄露给银行,可以改进匿名性。方案中银行只在需要跟踪时要求用户解密消息,从而进行用户和钱币的跟踪,这样跟踪时用户是知道的,因此简便实用地解决了无可信第三方情况下电子现金匿名性控制问题.更多还原

【Abstract】 This paper analyzes a payment protocol with scalable anonymity for Internet purchases, and analyzes its role- based access control (RBAC). The protocol uses electronic cash for payment transactions. It is an offline payment scheme that can prevent a con- sumer from spending a coin more than once. Consumers can improve anonymity if they are worried about disclosure of their identities to banks In this scheme the bank demands uses to decrypt the mark of the coin when tracing is needed so that the user and coin can he linked together and then user is certain about tracing.So the scheme resolves the problem of the E- cash anonymity control without TTP simply and practically.更多还原