【摘要】：提出了一種基于屬性門限簽名的動(dòng)態(tài)群組隱私保護(hù)公開審計(jì)方案,將用戶身份信息參數(shù)引入用戶屬性私鑰中,有效地防止合謀攻擊者通過組合屬性密鑰來偽造簽名.該方案利用基于屬性的授權(quán)策略,支持用戶權(quán)限撤銷和數(shù)據(jù)動(dòng)態(tài)操作.分析結(jié)果表明,該方案在隨機(jī)預(yù)言模型下具有不可偽造性和抵抗合謀攻擊等特點(diǎn),高效率且安全.
[Abstract]:This paper proposes a dynamic group privacy protection public audit scheme based on attribute threshold signature, which introduces user identity information parameters into the user attribute private key, and effectively prevents collusion attackers from forging signatures by combining attribute keys. The scheme utilizes attribute-based authorization policy to support user permission revocation and data dynamic operation. The results show that the proposed scheme has the characteristics of unforgeability and resistance to collusion attacks in the stochastic prediction model. It is efficient and secure.
【作者單位】： 北京郵電大學(xué)信息安全中心;北京郵電大學(xué)災(zāi)備技術(shù)國家工程實(shí)驗(yàn)室;
【基金】：國家高技術(shù)研究發(fā)展計(jì)劃(863計(jì)劃)項(xiàng)目(2015AA016005,2015AA017201) 廣東省應(yīng)用型科技研發(fā)專項(xiàng)資金項(xiàng)目(2015B010131007)
【分類號】：TP309
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本文編號：2211323