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中文摘要：
通过对Wang等人的方案的改进和有限域上的多项式理论，提出了一种具有可分性的支付方案。该方案可以抵制Santis等人方案的攻击，增强其安全性，同时也实现了货币的可分性。进一步针对匿名的提升进行了更为详细的研究，给出了具体的实现方法。
英文摘要：
This paper proposed a new payment scheme which was based on the polynomial theory of finite fields and improved on the Wang et al. ＇ s payment scheme. This scheme could resist Santis et al. ＇ s payment attack, so increased its seeunity. At the same time, it realizesed the divisibility of the coin. Furthermore, studied the anonymity scalability in this scheme concretely, and presented some methods.
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