Journal article
Blockchain-enabled multi-authorization and multi-cloud attribute-based keyword search over encrypted data in the cloud
Journal of Systems Architecture, Vol.129, Art. 102569
2022
Abstract
With the arrival of the 5G era, fast and secure data sharing is attracting increased attention. Among of the presented solutions, keyword search plays an important role since it can identify users and search ciphertext without decryption. However, the existing searchable algorithms have many limitations, such as powerful central authority, match processes being only carried out on the cloud server, and center corruption and single point of failure being easy to cause. Presently, the fairness of the keyword search is still a challenge. To solve these problems, we present a multi-authority and multi-cloud keyword search scheme based on the consortium blockchain and attribute-based encryption. Under this framework, multi-cloud block storage technique is used to address the unreliability of cloud servers, where at least two ciphertext files are stored in blocks on multiple cloud servers. It can resist malicious leaks, ciphertext tampering, and deletion of ciphertext by cloud servers. Blockchain allows the proposed scheme to achieve the integrity and correctness of the encrypted data, which also solves the fairness of search results. Furthermore, the scheme realizes privacy protection by hiding the keyword and the access policy in the trapdoor matching process. Finally, the security analyses and performance comparisons show the advantages of the proposed scheme over the existing work.
Details
- Title
- Blockchain-enabled multi-authorization and multi-cloud attribute-based keyword search over encrypted data in the cloud
- Authors/Creators
- Q. Wu (Author/Creator) - Xi’an University of Posts and TelecommunicationsT. Lai (Author/Creator) - Xi’an University of Posts and TelecommunicationsL. Zhang (Author/Creator) - Xidian UniversityY. Mu (Author/Creator) - City University of MacauF. Rezaeibagha (Author/Creator) - Murdoch University
- Publication Details
- Journal of Systems Architecture, Vol.129, Art. 102569
- Publisher
- Elsevier BV
- Identifiers
- 991005542273607891
- Copyright
- © 2022 Elsevier B.V.
- Murdoch Affiliation
- School of Information Technology
- Language
- English
- Resource Type
- Journal article
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- Collaboration types
- Domestic collaboration
- International collaboration
- Citation topics
- 4 Electrical Engineering, Electronics & Computer Science
- 4.187 Security Systems
- 4.187.160 Cryptographic Protocols
- Web Of Science research areas
- Computer Science, Hardware & Architecture
- Computer Science, Software Engineering
- ESI research areas
- Computer Science