User-revocable attribute based encryption scheme from lattices
Online published: 2025-01-25
Supported by
National Natural Science Foundation of China (U2336205, 62202231,62202230, 62302224,62302226);Yunnan Province Science and Technology Major Project (202302AD080002)
Copyright
A novel revocation-supported lattice-based attribute-based encryption (ABE) scheme was proposed to address the dynamic management of user permissions in Internet of Things (IoT) devices. The scheme implemented the user dynamic revocation function through an authority’s update time vector. It employed a linear secret sharing scheme (LSSS) to represent the access structure, ensuring the enforcement of complex access control policies such as AND, OR, and threshold access strategy. Additionally, it achieved partial concealment of access policies, significantly enhancing the scheme’s flexibility and security. Security evaluation demonstrats that the scheme can maintain ciphertext indistinguishability under both chosen-access structure and chosen-plaintext attacks, even in the presence of collusion attacks. Comparative analysis shows that the scheme outperforms in terms of storage efficiency and supports user revocation functionality, providing an effective and secure solution for data security and access control in IoT environments.
LIU Yuliang , MA Yanqi , LIU Yuan , ZHOU Yongbin . User-revocable attribute based encryption scheme from lattices[J]. Journal of Cybersecurity, 2024 , 2(5) : 78 -86 . DOI: 10.20172/j.issn.2097-3136.240507
表 1 相关方案的比较Table 1 Comparison of related schemes |
| 方案 | 隐私保护 | 撤销 | 公钥长度 | 用户私钥长度 | 密文长度 |
| 文献[20] | 不支持 | 不支持 | |||
| 文献[18] | 支持 | 不支持 | |||
| 文献[17] | 不支持 | 支持 | |||
| 本文 | 支持 | 支持 | |||
| 注: | |||||
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