RSA群签名在电子支付中的应用与实现

The Application and Implement of RSA Group Signature Scheme in Electronic Cash

现有的电子现金制度,顾客和商家必须使用同一银行,使电子现金的广泛应用受到一定程度的限制。针对这一情况,建立一个多银行的、安全的电子现金系统,将基于RSA的群签名制度应用于David-Amus-Moni电子现金制度中,即把所有的银行组成一个群,使顾客和商家可以在不同的银行提款和存款,并对此多银行支付制度(M-DAM)进行了安全性分析,结果表明该协议有效地满足匿名性和防伪攻击。

In previous electronic cash system, customer and company have to use the same bank, and make the extensive application of electronic cash be subjected to the restriction of certain degree. Aim at this situation, this paper build up a multi-bank and safety electronic cash system. It makes group signature system based on RSA apply in the electronic cash system of the David-Amus-Moni, and regards many banks as a group so that the customer and company be able to withdraw money and deposit in different banks, and analyses the security of the M-DAM. The result of the schem satisfies the anonymity and prevents the fake assault.