A secure cloud storage framework with access control based on blockchain
Open accessAbstract
Now more and more data are being outsourced to cloud services. In order to ensure data security and privacy, data are usually stored on the cloud server in the form of ciphertext. When a user requests access to the encrypted data, an access key distributed by a third party is needed. However, if the third party is dishonest, the security of the system will be threatened. Faced with this problem, in this paper, we propose a new secure cloud storage framework with access control by using the Ethereum blockchain technology. Our new scheme is a combination of Ethereum blockchain and ciphertext-policy attribute-based encryption (CP-ABE). The proposed cloud storage framework is decentralized, that is, there is no trusted third party in the system. Our scheme has three main features. First, as the Ethereum blockchain technology is used, the data owner can store ciphertext of data through smart contracts in a blockchain network. Second, the data owner can set valid access periods for data usage so that the ciphertext can only be decrypted during valid access periods. Finally, as the creation and invocation of each smart contract can be stored in the blockchain, thus, the function of the trace is achieved. The analysis of the security and experiment shows that our scheme is feasible.
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Blockchain can enable interconnection of cloud service providers to achieve a larger scale computation service.
“Furthermore, blockchain can enable interconnection cloud service providers to achieve a larger scale computation service [253].”
From Blockchain for 5G and beyond networks: A state of the art survey (2020) · cites this paper as [253]
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Blockchain for 5G and beyond networks: A state of the art survey
Nguyen, D. C., Pathirana, P. N., Ding, M., & Seneviratne, A. (2020) · Journal of Network and Computer Applications · doi:10.1016/j.jnca.2020.102693 · Cited by 412 · see citing works
- Authors
- Wang, S., Wang, X., & Zhang, Y.
- Affiliations
- Xi'an University of Technology (CN)
- Venue
- IEEE Access
- Published
- 2019
- Volume
- 7
- Pages
- 112713-112725
- ISSN
- 2169-3536 (ISSN-L)
- OpenAlex
- W2964258141
- Cited by
- 185
- References
- 27
- Citations by year
- 2026: 7 · 2025: 25 · 2024: 35 · 2023: 40 · 2022: 36 · 2021: 27 · 2020: 15
- FWCI
- 24.26
- Type
- journal article
- Language
- en
- Open access
- gold
- doi.org
- Locations
- IEEE Access (publishedVersion, cc-by)
- DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
- Funders
- National Natural Science Foundation of China (61572019)
- Key Research and Development Program of Shaanxi (2019GY-028)
- Topics
- Physical Sciences › Computer Science › Information Systems › Blockchain Technology Applications and Security
- Physical Sciences › Computer Science › Information Systems › Cloud Data Security Solutions
- Physical Sciences › Computer Science › Artificial Intelligence › Cryptography and Data Security
- Keywords
- secure cloud storage, access control, blockchain, Ethereum, ciphertext-policy attribute-based encryption, smart contracts, trusted third party elimination, data privacy, data security, traceability
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