分析了现有的基于身份的盲签名和代理签名，发现这些系统都需要无条件信任私钥产生中心(pkg)。
The current ID-based blind signatures and proxy signatures were analyzed in this paper. It was found that these systems need to trust a Private Key Generator (PKG) unconditionally.
最近崔巍等人提出了一个高效的基于身份的部分盲签名方案（崔-辛方案）。
Recently, an efficient identity-based partially blind signature scheme was put forward by Cui and Xin et al.
在已有的基于身份部分盲签名的基础上，提出了一种改进的基于身份的部分盲签名方案。
An improved ID-based partially blind signature is proposed on the basis of the existing ones.
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