Efficient revocable attribute-based encryption scheme

被引：0
|
作者：
Li X. [1 ]
Zhang D. [1 ]
Li H. [1 ]
机构：
[1] School of Cyber Engineering, Xidian University, Xi'an
来源：
Tongxin Xuebao/Journal on Communications | 2019年 / 40卷 / 06期
基金：
中国国家自然科学基金;
关键词：
Attribute revocation; CP-ABE; Less computation; Multi-authority; RSA key management;
D O I：
10.11959/j.issn.1000-436x.2019150
中图分类号：
学科分类号：
摘要：
In the existing solutions, the time-based scheme is difficult to achieve immediate revocation, and the third-party-based scheme often requires re-encryption, which needs large amount of calculation and doesn't apply to massive data. To solve the problem, an efficient and immediate CP-ABE scheme was proposed to support user and attribute levels revocation. The scheme was based on the classic LSSS access structure, introducing RSA key management mechanism and attribute authentication. By means of a semi-trusted third party, the user could be authenticated before decryption. Compared with the existing revocation schemes, The proposed scheme didn't need the user to update the key or re-encrypt the ciphertext. The semi-trusted third party wasn't required to update the RSA attribute authentication key. The scheme greatly reduced the amount of computation and traffic caused by revocation, while ensuring anti-collusion attacks and forward and backward security. Finally, the security analysis and experimental simulation show that the scheme has higher revocation efficiency. © 2019, Editorial Board of Journal on Communications. All right reserved.
引用
收藏
页码：32 / 39
页数：7
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