二是多银行电子现金系统的研究。
提出了一个基于椭圆曲线代理签名的多银行电子现金系统。
An electronic cash system with multiple Banks based on proxy signature from elliptic curve was proposed.
基于限制性代理盲签名，提出了一种新的多银行电子现金系统。
An E-cash system with multiple Banks based on restrictive proxy blind signature is proposed.
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