Leveraging Fine-Grained Access Control in Blockchain-Based Healthcare System

Tariq, Fatima; Khan, Zahoor Ali; Sultana, Tanzeela; Rehman, Mubariz; Shahzad, Qaiser; Javaid, Nadeem

doi:10.1007/978-3-030-44041-1_10

Cited by 5 publications

(3 citation statements)

References 20 publications

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“…Access control is closely related to data ownership that describes the selective restriction of information and systems so that only authorized users can have access. Thwin and Vasupongayya [ 41 ] proposed a blockchain-based model that has fine-grained access control of medical records [ 43 , 53 ] stored on cloud storage and uses proxy re-encryption [ 47 ] for data sharing. The actual medical files are encrypted using the owner’s public key, while the re-encryption keys and other information needed in the authorization process are stored on a semi-trusted proxy called the gateway server.…”

Section: Methodsmentioning

confidence: 99%

Addressing the Challenges of Electronic Health Records Using Blockchain and IPFS

Pilares

Azam

Akbulut

et al. 2022

Sensors

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Electronic Health Records (EHR) are the healthcare sector’s core digital strategy meant to improve the quality of care provided to patients. Despite the benefits afforded by this digital transformation initiative, adoption among healthcare organizations has been slower than desired. The sheer volume and sensitive nature of patient records compel these organizations to exercise a healthy amount of caution in implementing EHR. Cyberattacks have also increased the risks associated with non-optimal EHR implementations. An influx of high-profile data breaches has plagued the sector during the COVID-19 pandemic, which put the spotlight on EHR cybersecurity. One objective of this research project is to aid the acceleration of EHR adoption. Another objective is to ensure the robustness of the system to resist malicious attacks. For the former, a systematic review was used to unearth all the possible causes why the adoption of EHR has been anemic. In this paper, sixty-five existing proposed EHR solutions were analyzed and it was found that there are fourteen major challenges that need to be addressed to reduce friction and risk for health organizations. These were privacy, security, confidentiality, interoperability, access control, scalability, authentication, accessibility, availability, data storage, data ownership, data validity, data integrity, and ease of use. We propose EHRChain, a new framework that tackles all the listed challenges simultaneously to address the first objective while also being designed to achieve the second objective. It is enabled by dual-blockchains based on Hyperledger Sawtooth to allow patient data decentralization via a consortium blockchain and IPFS for distributed data storage.

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Section: Methodsmentioning

confidence: 99%

Addressing the Challenges of Electronic Health Records Using Blockchain and IPFS

Pilares

Azam

Akbulut

et al. 2022

Sensors

View full text Add to dashboard Cite

show abstract

“…This approach is demonstrated to prevent data leakage risks that may be occasioned by improper operation during processing. Similarly, a fine-grained access control scheme for medical records [134] is introduced in [112] based on the blockchain. Here, the medical records are stored in the cloud and proxy re-encryption is utilized for data sharing [135].…”

Section: Techniques For Access Controlmentioning

confidence: 99%

A survey of healthcare sector digitization strategies: Vulnerabilities, countermeasures and opportunities

Nyakina¹,

Taher²

2023

World J. Adv. Eng. Technol. Sci.

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The adoption of electronic healthcare in hospital environment can potentially reduce costs and improve the quality of life of the patients. However, numerous security and privacy issues arise when sensitive patient data is shared among multiple devices and users. Owing to its vulnerable nature, electronic health records seem to be more attractive to attackers compared to other forms of records such as financial transactions. Consequently, the patient data collected at the sensors, transmitted across communication channels and residing in hospital servers is susceptible to various threats. The goal of this paper was to carry out a survey of the electronic healthcare environment and attempt to understand the various weaknesses that can be exploited. This is followed by some descriptions of the various preventive mechanisms as well as the noted gaps. Therefore, numerous recommendations are given that are deemed fit for enhanced security and privacy posture in electronic healthcare domain.

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“…Storing health data [39,80,82,83] With its distribution network and consensus mechanism, the Blockchain allows for a secure decentralized storing option for the massive volume of sensitive HER Sharing health data [10,15,[84][85][86][87][88][89][90][91][92] Both the health providers and especially the patients can easily access health data from any facility in a Blockchain-based system. That ensures control for the patient and fast passing-on data for optimal care Audit logging of health data [93][94][95][96][97] For audit logging, the Blockchain provides a record of all historical data of access and changes to an EHR, which can be very useful for later occurring issues with the health data content and monitor who entered a patient's EHR…”

Section: Table 1 Application Areas Of Blockchain For Ehr Purposes Ehr Requirementsmentioning

confidence: 99%

A Risk Analysis on Blockchain Technology Usage for Electronic Health Records

Ploder

Bernsteiner

Weichelt³

2021

Cloud Computing and Data Science

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Health data is one of the most valuable data and highly sensitive. Its careful handling is essential in today' s digitalized world and cloud technology use for sharing. Health Information Systems facilitate the storage and accessibility of health data for better care along the patient path. As the integration of all historical patient data, the Electronic Health Record is at the heart of health data management. The centralization of stored health data represents a single point of failure and trust, making data exchange across institutions difficult and insecure. Blockchain technology builds on consensus mechanisms and immutable chains of blocks for validating and securing data transactions as a modern decentralized approach. The application of blockchain technology for Electronic Health Records is promising but still a young concept. Due to the wide range of discussion, this paper aims at identifying risks by using blockchain technology in the eHealth sector. Based on a systematic literature review, various authors' argumentations and findings are examined and concluded to set up the empirical study. The semistructured qualitative interview study aims to find out the threats of blockchain. The paper concludes with an overall discussion and some implementation recommendations.

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Leveraging Fine-Grained Access Control in Blockchain-Based Healthcare System

Cited by 5 publications

References 20 publications

Addressing the Challenges of Electronic Health Records Using Blockchain and IPFS

Addressing the Challenges of Electronic Health Records Using Blockchain and IPFS

A survey of healthcare sector digitization strategies: Vulnerabilities, countermeasures and opportunities

A Risk Analysis on Blockchain Technology Usage for Electronic Health Records

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