白盒可追踪的属性签名方案

发布时间：2018-04-30 15:31

本文选题：数字签名 + 属性　；参考：《计算机工程》2017年04期

【摘要】：基于属性的签名协议具有匿名性,且私钥不与用户身份绑定,恶意用户可能利用此性质出售私钥而逃过追究。为此,提出可追踪性属性签名方案,使得系统能够通过泄露的私钥破解匿名性并追踪用户身份。给出具有白盒可追踪性的基于属性数字签名协议的密码学原型。通过将Boneh-Boyen签名算法有机嵌入到用户私钥中,实现白盒可追踪性。分析结果表明,该方案具有可证明安全的不可伪造性和完美隐私性,其时间复杂度与目前最优的可追踪属性签名方案仅相差一个常数。
[Abstract]:The signature protocol based on attributes is anonymous and the private key is not bound to the user's identity. The malicious user may use this property to sell the private key and escape prosecution. Therefore, a traceability attribute signature scheme is proposed, which enables the system to crack the anonymity and trace the user identity through the leaked private key. A cryptographic prototype based on attribute digital signature protocol with white box traceability is presented. White box traceability is realized by embedding Boneh-Boyen signature algorithm into user's private key. The analysis results show that the proposed scheme can prove the unforgeability of security and perfect privacy. The time complexity of the scheme is only one constant different from that of the current optimal traceable attribute signature scheme.
【作者单位】：复旦大学软件学院;
【分类号】：TN918.91

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