An Efficient Blockchain Based Data Access with Modified Hierarchical Attribute Access Structure with CP-ABE Using ECC Scheme for Patient Health Record

Sammy, F.; Vigila, S. Maria Celestin

doi:10.1155/2022/8685273

Cited by 10 publications

(6 citation statements)

References 44 publications

(62 reference statements)

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“…The worse performance, than traditional ECQV certificate scheme. [30] cloud storage access control method access control with malicious cloud users' dependent on semi-trusted party [6] CP-ABE Using ECC Scheme effective key generation affects the ciphertext length with increase attributes [17] key-escrow-free ECCbased CP-ABE…”

Section: Methodsmentioning

confidence: 99%

“…The main objective is to design a lightweight CP-ABE scheme for the IoT healthcare system. CP-ABE enables a user to encrypt data using attribute-based encryption without having to be aware of the specific individuals who make up each attribute [6]. The binary value valid, with a value of 1 for valid policies and a value of 0 for invalid policies, establishes the legality of the policy.…”

Section: Ecc Based Cp-abementioning

confidence: 99%

“…To get over these restrictions, cloud computing offers a centralised solution to resourceconstrained procedures. The cloud is used to store and process the collected data, but this environment can be unreliable and have serious security problems, including single points of failure, data modification, lack of privacy, Denial of Service, and password phishing [6]. Despite its many advantages, incorporating IoT into healthcare systems poses a number of challenges, among which the privacy preservation of the collected data are utmost important [7].…”

Section: Introductionmentioning

confidence: 99%

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An Efficient Blockchain-based Access Control Framework for IoT-Healthcare System

Raj

Prakash

2023

Preprint

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Nowadays, the adoption of the Internet of Things (IoT) framework in various healthcare industries has grown rapidly in the recent years. The IoT devices generates huge amount of data which are often sensitive, such as personal health information. It is mandatory to ensure that this data is protected from unauthorized access and use. However, the resource-constrained nature of these devices can make it difficult to implement robust security measures, such as encryption and authentication. Blockchain is a promising approach for the secure management of medical record in immutable way. This problem can be resolved with ciphertext-policy attribute-based encryption, which allows granular access control. The local gateways that are directly interfaced to the Ethereum blockchain-based smart contract platform are utilised to create and implement a distributed and dependable user authentication and access control mechanism for smart based healthcare. In this paper, the use of a DBC-based CP-ABE approach offers a secure and decentralized solution for secure communication and data protection, and providing a more secure and trustworthy system. The proposed system is based on the idea of an Elliptical Curve Cryptography (ECC)-based CP-ABE method reduce complexity and provide data security in remote patient monitoring. On the other hand, blockchain-based smart contracts offer a dynamic, optimal, and self-adjusted access control in smart healthcare system. It lowers the overhead associated with conducting resource-intensive authentication procedures and blockchain communications at IoT devices. The result shows the effectiveness of the proposed scheme in terms of computation and processing time as well as its resistance to several security intrusions over existing schemes.

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Section: Methodsmentioning

confidence: 99%

Section: Ecc Based Cp-abementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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An Efficient Blockchain-based Access Control Framework for IoT-Healthcare System

Raj

Prakash

2023

Preprint

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“…Yang et al [22] applied attribute-based encryption method with Computer-aided Design (CAD) of assembly model, which can protect the content privacy of CAD model and realize hierarchical access control of collaborative design scenes in cloud manufacturing. Sammy et al [23]'s scheme uses the elliptic curve cryptography, which can help reduce complexity. Besides, they provide dynamic attributes and a user-centric access policy, allowing multiple authorities to manage the attributes and realize data and user authentication.…”

Section: • Hierarchical Abementioning

confidence: 99%

Black box-assisted fine-grained hierarchical access control scheme for epidemiological survey data

2023

KSII TIIS

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Epidemiological survey is an important means for the prevention and control of infectious diseases. Due to the particularity of the epidemic survey, 1) epidemiological survey in epidemic prevention and control has a wide range of people involved, a large number of data collected, strong requirements for information disclosure and high timeliness of data processing; 2) the epidemiological survey data need to be disclosed at different institutions and the use of data has different permission requirements. As a result, it easily causes personal privacy disclosure. Therefore, traditional access control technologies are unsuitable for the privacy protection of epidemiological survey data. In view of these situations, we propose a black box-assisted fine-grained hierarchical access control scheme for epidemiological survey data. Firstly, a black box-assisted multi-attribute authority management mechanism without a trusted center is established to avoid authority deception. Meanwhile, the establishment of a master key-free system not only reduces the storage load but also prevents the risk of master key disclosure. Secondly, a sensitivity classification method is proposed according to the confidentiality degree of the institution to which the data belong and the importance of the data properties to set fine-grained access permission. Thirdly, a hierarchical authorization algorithm combined with data sensitivity and hierarchical attribute-based encryption (ABE) technology is proposed to achieve hierarchical access control of epidemiological survey data. Efficiency analysis and experiments show that the scheme meets the security requirements of privacy protection and key management in epidemiological survey.

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“…We chose a symmetric-based fine-grained encryption algorithm to deal with massive files compared with the research based on public key encryption. Attribute-based encryption (ABE) is a derivation of public key encryption, such as schemes based on elliptic curve cryptography (ECC) [17,43,44] or the RSA algorithm [45,46]. Their key lengths are different at the same security level according to the National Institute of Standards and Technology (NIST) [47]; for example, a 112-bit symmetrical encryption key has the same strength as a 2048-bit RSA key or a 224-bit ECC key, and thus our strategy is better than others in terms of security and key length.…”

Section: Advantage Analysismentioning

confidence: 99%

EStore: A User-Friendly Encrypted Storage Scheme for Distributed File Systems

Chen,

Dong,

et al. 2023

Sensors

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In this paper, we propose a user-friendly encrypted storage scheme named EStore, which is based on the Hadoop distributed file system. Users can make use of cloud-based distributed file systems to collaborate with each other. However, most data are processed and stored in plaintext, which is out of the owner’s control after it has been uploaded and shared. Meanwhile, simple encryption guarantees the confidentiality of uploaded data but reduces availability. Furthermore, it is difficult to deal with complex key management as there is the problem whereby a single key encrypts different files, thus increasing the risk of leakage. In order to solve the issues above, we put forward an encrypted storage model and a threat model, designed with corresponding system architecture to cope with these requirements. Further, we designed and implemented six sets of protocols to meet users’ requirements for security and use. EStore manages users and their keys through registration and authentication, and we developed a searchable encryption module and encryption/decryption module to support ciphertext retrieval and secure data outsourcing, which will only minimally increase the calculation overhead of the client and storage redundancy. Users are invulnerable compared to the original file system. Finally, we conducted a security analysis of the protocols to demonstrate that EStore is feasible and secure.

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An Efficient Blockchain Based Data Access with Modified Hierarchical Attribute Access Structure with CP-ABE Using ECC Scheme for Patient Health Record

Cited by 10 publications

References 44 publications

An Efficient Blockchain-based Access Control Framework for IoT-Healthcare System

An Efficient Blockchain-based Access Control Framework for IoT-Healthcare System

Black box-assisted fine-grained hierarchical access control scheme for epidemiological survey data

EStore: A User-Friendly Encrypted Storage Scheme for Distributed File Systems

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