A restricted proxy re‐encryption with keyword search for fine‐grained data access control in cloud storage

Chen, Zhenhua; Li, Shundong; Huang, Qiong; Wang, Yilei; Zhou, Sufang

doi:10.1002/cpe.3754

Cited by 14 publications

(6 citation statements)

References 19 publications

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“…Projects like “Privacy Flag” should be encouraged in order to identify possible risks on disclosure of data with suitable countermeasures and actions. The project limits to crowdfunding privacy risk assessment but can be applicable to other applications 139,140 Choosing third party in case of consortium blockchain: We need a blockchain which not only solves the data processor and data controller propaganda but also supports the honest users.…”

Section: Key‐findings Of the Researchmentioning

confidence: 99%

A systematic literature review on sensitive data protection in blockchain applications

Khanum

Mustafa

2022

Concurrency and Computation

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Since inception, blockchain has earned significant attention due to its exclusive characteristics and advantages. It has changed the way the transactions are conducted by eradicating the role of third parties and promises to ensure trust among the participants. This technology is emerging as a potential solution to several issues but not without certain security vulnerabilities. In particular, protection of sensitive data is a more critical issue in the absence of a third party. This paper is aimed to report and share the state of the art of sensitive data protection in blockchain applications. The covered aspects include identification of sensitive data, existing techniques to protect sensitive data and to know how real time data compromised by security risks, attacks, threats and vulnerabilities concerning blockchain applications. This paper analysis the tools and techniques used in the past for protecting sensitive data and categorized them. On the basis of research and intuitive findings, methods and techniques are elaborated which can contribute in future in the designing a framework for protection of sensitive data in blockchain applications.

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Section: Key‐findings Of the Researchmentioning

confidence: 99%

A systematic literature review on sensitive data protection in blockchain applications

Khanum

Mustafa

2022

Concurrency and Computation

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“…However, when the proxy obtains the re-encryption key, the proxy is capable to convert all the ciphertexts of the user without restriction. To strengthen the fine-grained control of right of the proxy and further improve data security, the schemes 31,[46][47][48] proposed limited right PRE scheme with keyword search. However, the above schemes only support search for ciphertext by the use of one keyword.…”

Section: Pre With Abstractearchmentioning

confidence: 99%

Proxy re‐encryption with equality test for secure data sharing in Internet of Things‐based healthcare systems

Jin

Kumari

et al. 2020

Trans Emerging Tel Tech

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The integration of the Internet of Things (IoT) and cloud computing brings tremendous convenience and efficiency to process and store growing sensor data in healthcare systems. For the security of sensor data collected by healthcare systems, encrypting data before uploading is necessary. Nevertheless, these encrypted form sensor data make it a research challenge to achieve efficient data search and data sharing on the cloud‐assisted IoT simultaneously. Encrypting data by public key encryption with equality test (PKE‐ET) scheme, identified as a viable solution, is capable to search data encrypted with different keys efficiently. However, how to efficiently share searched healthcare record on the cloud server is still an unsettled problem. To address this problem, we combine the concepts of proxy re‐encryption (PRE) and PKE‐ET to obtain proxy re‐encryption with equality test (PRE‐ET). Inheriting the advantages of PKE‐ET and PRE, the user can search the required healthcare record data from data encrypted under different public keys. Meanwhile, the searched healthcare record can be shared securely and flexibly without disclosing the secret key and plaintext. We prove the security of our PRE‐ET construction based on divisible computation Diffie‐Hellman assumption in the random oracle model. Eventually, the proposed scheme is proven useful according to extensive efficiency analysis and comparison.

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“…The data user is allowed to delegate the keyword search ability to multiple users. Next, Chen et al [93] proposed a restricted proxy re-encryption with keyword search scheme for fine-grained data access control to restrict the capability of the proxy cloud server. Subsequently, Hong et al [94] proposed an attribute-based proxy re-encryption scheme with keyword search, and it fully took advantage of the attribute-based re-encryption and keyword search supporting flexible data access control among users in data sharing scenario.…”

Section: Peks-pre Research and Progressmentioning

confidence: 99%

Public Key Encryption with Keyword Search in Cloud: A Survey

Zhou

Tian

et al. 2020

Entropy

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With the popularization of cloud computing, many business and individuals prefer to outsource their data to cloud in encrypted form to protect data confidentiality. However, how to search over encrypted data becomes a concern for users. To address this issue, searchable encryption is a novel cryptographic primitive that enables user to search queries over encrypted data stored on an untrusted server while guaranteeing the privacy of the data. Public key encryption with keyword search (PEKS) has received a lot of attention as an important branch. In this paper, we focus on the development of PEKS in cloud by providing a comprehensive research survey. From a technological viewpoint, the existing PEKS schemes can be classified into several variants: PEKS based on public key infrastructure, PEKS based on identity-based encryption, PEKS based on attribute-based encryption, PEKS based on predicate encryption, PEKS based on certificateless encryption, and PEKS supporting proxy re-encryption. Moreover, we propose some potential applications and valuable future research directions in PEKS.

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A restricted proxy re‐encryption with keyword search for fine‐grained data access control in cloud storage

Cited by 14 publications

References 19 publications

A systematic literature review on sensitive data protection in blockchain applications

A systematic literature review on sensitive data protection in blockchain applications

Proxy re‐encryption with equality test for secure data sharing in Internet of Things‐based healthcare systems

Public Key Encryption with Keyword Search in Cloud: A Survey

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