关键词: 盲签名, 基于身份, 部分盲签名, 安全性分析

Abstract: The security of an ID-based partially blind signature scheme recently proposed by Zhang et al.is analyzed，and it is pointed out that Zhang et al.’s scheme doesn’t satisfy the partially blind property and the adversary can modify the pre-agreed and embedded common information.A novel ID-based partially blind signature scheme is proposed，and its security and performance are analyzed.The proposed scheme not only satisfies the various security properties of partially blind signature，but also can prevent from the adversary’s attack of modifying common information.Moreover，the result of comparison the proposed scheme with other ID-based partially blind signature schemes show that the proposed scheme is more efficient.Therefore，the proposed scheme can be used to construct secure and efficient e-cash and e-voting etc.

Key words: blind signature, ID-based, partially blind signature, security analysis