Internal auditing is the third line of defense in the internal control of a bank, and it is also an important means to evaluate and perfect the risk management of the bank.
银行业内部审计是银行内部控制的第三道防线，是评价和改善银行风险管理的重要手段。
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。
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