A CP-ABE Access Control Scheme Based on Proxy Re-encryption in Cloud Storage

Peng, Yao

doi:10.1007/978-3-030-00009-7_38

Cited by 6 publications

(3 citation statements)

References 8 publications

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“…Then the data is inverted and the maximum number of iterations of the algorithm is judged. If the maximum number of iterations has been reached, the inverted transformation is finished and the processed data is stored in the multi-target database at [15].…”

Section: Edge Cloud Unstructured Data Storage Network Topology Designmentioning

confidence: 99%

Research on unstructured data storage in large-scale grid edge cloud for cross-region networking

Huang,

Lin,

Chen

et al. 2024

Eighth International Conference on Energy System, Electricity, and Power (ESEP 2023)

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The current conventional unstructured data storage methods for grid edge cloud mainly use distributed storage to realize the data storage, which leads to poor storage efficiency due to ignoring the fitness between data attributes and databases. In this regard, a large-scale grid edge cloud unstructured data storage method for cross-region networking is proposed. The features of the edge cloud unstructured data are extracted utilizing data fusion. Access interfaces are designed to connect the temporal database with other types of databases to build a multi-target database with higher adaptability, and the data storage network topology is designed. In the experiments, the storage performance of the designed storage method is tested. The final results can prove that the average response time of the system is shorter when the proposed method is used to store the edge cloud data, and it has a more desirable data storage performance.

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Section: Edge Cloud Unstructured Data Storage Network Topology Designmentioning

confidence: 99%

Research on unstructured data storage in large-scale grid edge cloud for cross-region networking

Huang,

Lin,

Chen

et al. 2024

Eighth International Conference on Energy System, Electricity, and Power (ESEP 2023)

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“…Proxy re-encryption (PRE) was first proposed by Blaze et al [6], wherein semi-trusted proxy nodes use a re-encryption key to re-encrypt the ciphertext, allowing the delegatee to decrypt it. This approach achieves secure data sharing between the delegator and the delegatee without revealing the plaintext [7]. However, G et al [8] proposed a bidirectional PRE scheme that cannot guarantee the security of the delegator's data, and only supports one-to-one data sharing.…”

Section: Related Workmentioning

confidence: 99%

A Blockchain-Based Efficient and Verifiable Attribute-Based Proxy Re-Encryption Cloud Sharing Scheme

2023

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When choosing a third-party cloud storage platform, the confidentiality of data should be the primary concern. To address the issue of one-to-many access control during data sharing, it is important to encrypt data with an access policy that enables fine-grained access. The attribute-based encryption scheme can be used for this purpose. Additionally, attribute-based proxy re-encryption (ABPRE) can generate a secret key using the delegatee’s secret key and access policy to re-encrypt the ciphertext, allowing for one-to-many data sharing. However, this scheme still has some flaws, such as low efficiency, inability to update access rules, and private data leakage. To address these issues, we proposed a scheme that combines attribute-based encryption (ABE) and identity-based encryption (IBE) to achieve efficient data sharing and data correctness verification. We also integrated this scheme with blockchain technology to ensure tamper-proof and regulated data storage, addressing issues such as data tampering and lack of supervision on third-party servers. Finally, to demonstrate the security of our scheme, we evaluated the communication overhead and computation overhead. Our results showed that our scheme is more efficient than other schemes and is secure against chosen plaintext attacks with verifiable properties.

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“…Threshold structure [8], tree-based access structure [10], [14], AND-gates [22] and linear secret sharing structure [23], [24] is often used to achieve access control in attribute-based encryption scheme. Here, we exploit a series of AND-gates with multi-valued attributes like [25] as our access structure.…”

Section: A Bilinear Mapmentioning

confidence: 99%

Blockchain-Based Secure Storage and Access Scheme For Electronic Medical Records in IPFS

et al. 2020

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Electronic medical records can help people prevent diseases, improve cure rates, provide a significant basis for medical institutions and pharmaceutical companies, and provide legal evidence for medical negligence and medical disputes. However, the integrity and security problems of electronic medical data still intractable. In this paper, based on the ciphertext policy attribute-based encryption system and IPFS storage environment, combined with blockchain technology, we constructed an attribute-based encryption scheme for secure storage and efficient sharing of electronic medical records in IPFS storage environment. Our scheme is based on ciphertext policy attribute encryption, which effectively controls the access of electronic medical data without affecting efficient retrieval. Meanwhile, we store the encrypted electronic medical data in the decentralized InterPlanetary File System (IPFS), which not only ensures the security of the storage platform but also solves the problem of the single point of failure. Besides, we leverage the non-tamperable and traceable nature of blockchain technology to achieve secure storage and search for medical data. The security proof shows that our scheme achieves selective security for the choose keyword attacks. Performance analysis and real data set simulation experiments shows that our scheme is efficient and feasible.

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A CP-ABE Access Control Scheme Based on Proxy Re-encryption in Cloud Storage

Cited by 6 publications

References 8 publications

Research on unstructured data storage in large-scale grid edge cloud for cross-region networking

Research on unstructured data storage in large-scale grid edge cloud for cross-region networking

A Blockchain-Based Efficient and Verifiable Attribute-Based Proxy Re-Encryption Cloud Sharing Scheme

Blockchain-Based Secure Storage and Access Scheme For Electronic Medical Records in IPFS

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