本文選題：數(shù)字簽名 + 屬性�。� 參考：《計(jì)算機(jī)工程》2017年04期

【摘要】：基于屬性的簽名協(xié)議具有匿名性,且私鑰不與用戶身份綁定,惡意用戶可能利用此性質(zhì)出售私鑰而逃過追究。為此,提出可追蹤性屬性簽名方案,使得系統(tǒng)能夠通過泄露的私鑰破解匿名性并追蹤用戶身份。給出具有白盒可追蹤性的基于屬性數(shù)字簽名協(xié)議的密碼學(xué)原型。通過將Boneh-Boyen簽名算法有機(jī)嵌入到用戶私鑰中,實(shí)現(xiàn)白盒可追蹤性。分析結(jié)果表明,該方案具有可證明安全的不可偽造性和完美隱私性,其時間復(fù)雜度與目前最優(yōu)的可追蹤屬性簽名方案僅相差一個常數(shù)。
[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.
【作者單位】： 復(fù)旦大學(xué)軟件學(xué)院;
【分類號】：TN918.91

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