A Blockchain-Based Framework for Data Sharing With Fine-Grained Access Control in Decentralized Storage Systems

By Shangping Wang, Yinglong Zhang, Yaling Zhang. IEEE Access, 2018

518 citations recorded by the source corpus.

In traditional cloud storage systems, attribute-based encryption (ABE) is regarded as an important technology for solving the problem of data privacy and fine-grained access control. However, in all ABE schemes, the private key generator has the ability to decrypt all data stored in the cloud server, which may bring serious problems such as key abuse and privacy data leakage. Meanwhile, the traditional cloud storage model runs in a centralized storage manner, so single point of failure may leads to the collapse of system. With the development of blockchain technology, decentralized storage mode has entered the public view. The decentralized storage approach can solve the problem of single point of failure in traditional cloud storage systems and enjoy a number of advantages over centralized storage, such as low price and high throughput. In this paper, we study the data storage and sharing scheme for decentralized storage systems and propose a framework that combines the decentralized storage system interplanetary file system, the Ethereum blockchain, and ABE technology. In this framework, the data owner has the ability to distribute secret key for data users and encrypt shared data by specifying access policy, and the scheme achieves fine-grained access control over data. At the same time, based on smart contract on the Ethereum blockchain, the keyword search function on the cipher text of the decentralized storage systems is implemented, which solves the problem that the cloud server may not return all of the results searched or return wrong results in the traditional cloud storage systems. Finally, we simulated the scheme in the Linux system and the Ethereum official test network Rinkeby, and the experimental results show that our scheme is feasible.

Subfields: Artificial Intelligence, Information Systems

View Paper: https://www.semanticscholar.org/paper/593784aa3525e3c875e125c68cfbbb1da72a1005

How researchers see this paper

The researchers whose trusted networks rank it highest, strongest advocate first. Every researcher gets a different order.

In Artificial Intelligence

In Information Systems

Citations in the corpus

Survey on blockchain for Internet of Things (2019, methodology): “[101] proposed a scheme that combines the interplanetary file system of distributed storage system, Ethereum blockchain and attribute-based encryption (ABE) technology.”
Blockchain for 5G and Beyond Networks: A State of the Art Survey (2019, unknown): “In this context, the authors in [162]”
Blockchain for Secure EHRs Sharing of Mobile Cloud Based E-Health Systems (2019, methodology): “To better preserve data privacy and availability on clouds, the authors in [21] designed a decentralized storage system by combining Interplanetary File System (IPFS), Ethereum blockchain, and attribute-based encryption (ABE) technologies.”
Blockchain Meets Cloud Computing: A Survey (2020, methodology): “Combining with the concept of ABAC, Wang et al. [94] proposed a blockchain framework for attributed-based ﬁne-grained access control in the distributed storage system.”