并且这个方案能够满足强不可伪造性和强不可否认性。

We also point out that the scheme presented by Shum and Victor cannot provide strong non-repudiation and strong unforgeability.

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指出他们的方案不满足强不可伪造性、强不可否认性和强识别性。

In this paper, the authors demonstrate Chan-Wei scheme does not satisfy strong unforgeablity, strong nonrepudiation and strong identifiability.

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首先，对首个代理盲签名方案进行安全性分析，指出其不满足不可伪造性。

Firstly, on the safety analysis of the first signature scheme, points out that it does not satisfy the unforgeability.

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