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Verifiable and auditable multi-authority attribute-based encryption

delete2025-05-27
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PRE
AI
X
Xingwang Wang
P
Peng Zeng *
J
Jiaying Luo
DOI:10.1016/j.csi.2025.103991delete
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摘要

摘要

En 中文
基于属性的加密(ABE)对于云计算安全至关重要,因为它能够实现细粒度的非交互式访问控制,并允许在不依赖可信第三方的情况下高效、安全地共享数据。多授权方ABE(MABE)是对传统单授权方ABE的改进,因为前者能够消除后者存在的密钥托管问题,因此更适合某些特殊应用的访问控制。最近,Zhou等人提出了一种可审计的MABE(A-MABE)方案,其中将授权方分为一个可信授权方和多个属性授权方。为确认和保护数据所有权,本文提出了可验证的A-MABE(VA-MABE)方案。可验证性这一附加特性通过我们新提出的零知识证明协议实现,该协议使数据发送方(即数据所有者)能够在不泄露敏感信息的情况下证明加密数据的所有权。我们提出的VA-MABE方案还赋予授权方以最小成本加入或退出系统的灵活性。为解决关于集中审计权力的担忧,我们纳入了分散化该角色的技术,从而增强了系统的韧性。
Keyword:
Attribute-based encryption
Multi-authority
Verifiability
Auditability
Access control
Zero-knowledge proof

期刊

C
Computer Standards and Interfaces
IF:
3.1
论文数:
2.3K
被引数:
2.0K

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