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- Title
Efficient Revocable Attribute-Based Encryption with Data Integrity and Key Escrow-Free.
- Authors
Huang, Meijuan; Liu, Yutian; Yang, Bo; Zhao, Yanqi; Zhang, Mingrui
- Abstract
Revocable attribute-based encryption (RABE) provides greater flexibility and fine-grained access control for data sharing. However, the revocation process for most RABE schemes today is performed by the cloud storage provider (CSP). Since the CSP is an honest and curious third party, there is no guarantee that the plaintext data corresponding to the new ciphertext after revocation is the same as the original plaintext data. In addition, most attribute-based encryption schemes suffer from issues related to key escrow. To overcome the aforementioned issues, we present an efficient RABE scheme that supports data integrity while also addressing the key escrow issue. We demonstrate the security for our system, which is reduced to the decisional q-parallel bilinear Diffie-Hellman exponent (q-PBDHE) assumption and discrete logarithm (DL) assumption. The performance analysis illustrates that our scheme is efficient.
- Subjects
CLOUD storage; CLOUD computing; INFORMATION sharing; DATA integrity; SECURITY systems; ACCESS control; REVOCATION; DATA encryption
- Publication
Information (2078-2489), 2024, Vol 15, Issue 1, p32
- ISSN
2078-2489
- Publication type
Article
- DOI
10.3390/info15010032