.png){kind=icon}
返回
Levelled attribute-based encryption for hierarchical access control
.png){kind=icon}
PRE
AI
DOI：10.1016/j.csi.2024.103957.png)
.png){kind=icon}
原文求助.png){kind=icon}
分享.png){kind=icon}
收藏
摘要
En 中文
Attribute-based encryption (ABE) is an important primitive to address the problem of flexible one-to-many encryption. Attribute-based encryption has found many practical applications such as cloud storage systems, file sharing systems, e-Health, pay-TV systems, social networks, etc. However, in almost existing ABE schemes, the efficiency depends heavily on the number of attributes involved in the secret key and the ciphertext. This makes hierarchical access control in ABE, where attributes need to be hierarchically organized, could be inefficient. This paper introduces a novel concept of Levelled Attribute-based Encryption (Levelled ABE) as a solution to address the inefficiencies of standard ABE for hierarchical access control systems, where scalability and key management are critical. Levelled ABE presents a hierarchical attribute framework where attributes are organized into classes, and each attribute is assigned a level number within its class. By introducing this hierarchical structure, Levelled ABE enables finer-grained access control, scalability and more efficient key management. As a proof of concept, this paper also proposes two concrete constructions of Levelled ABE, one for key-policy and the other for ciphertext-policy. These constructions are comparable to existing ABE schemes. The security of the proposed constructions is proved in the generic group model.
Keyword:
Levelled attribute-based encryption
Hierarchical attribute
Key-policy
Ciphertext-policy
Attribute-based encryption
期刊
C
IF:
3.1
论文数:
2.3K
被引数:
2.0K
机构
引用论文
How microbes mobilize metals in ores: A review of current understandings and proposals for further research微生物如何活化矿石中的金属：对当前认知的综述及未来研究方向的建议
PREAI
分享收藏Hierarchical attribute-based encryption and scalable user revocation for sharing data in cloud servers云服务器共享数据的分层属性加密和可扩展用户撤销.png)
COMPUTERS & SECURITY
COMPUTERS & SECURITYIF5.4
PREAI
分享收藏 没有更多内容
没有更多内容