In this paper, we introduce a notion called restrictive blind group signature, then we construct a fair off-line e-cash system in the multiple bank model with both user and bank anonymity control.
本文提出一个新的称为限制性群盲签名的概念，并且指出了如何利用限制性群盲签名来构造多个银行参与发行的、公正的电子现金系统。
It is an important research direction to build a safer, efficient and fair access control system for business system resources.
构建安全、高效和公平的企业系统资源的统一访问控制系统，是目前一个重要的研究方向。
It is an important research direction to build a safer, efficient and fair access control system for business system resources.
构建安全、高效和公平的企业系统资源的统一访问控制系统，是目前一个重要的研究方向。
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