ENABLING DATA SECURITY IN CLOUD COMPUTING THROUGH REMOTE DATA INTEGRITY AUDITING

Data Security ◽

Data Integrity ◽

User Privacy ◽

Health Records ◽

Essential Information ◽

Blockchain Technology ◽

Access Data ◽

Remote Data

Health-records are an essential information for everyone. User cannot carry all the health records of a patient everywhere whenever required, as it may lead to misplacing of documents and may get placed in the wrong hands. To solve this obstacle, remote data integrity audit proposal has been introduced, that facilitates the sharing of data and hides crucial data ensuring the condentiality of the information stored in the cloud. The proposed system aims at preserving user privacy in an Electronic Health Records (EHR) system using the blockchain technology (EHR-BT). The scheme generates blocks of equal length of the le with condential data and turns the signatures of data blocks into legitimate le access data blocks. With the integrity audit phase, signatures are used to certify the integrity of the le, as well as ensures the privacy and immutability of information.

Towards a Stakeholder-Oriented Blockchain-Based Architecture for Electronic Health Records: Design Science Research Study

Journal of Medical Internet Research ◽

10.2196/13585 ◽

2019 ◽

Vol 21 (10) ◽

pp. e13585 ◽

Cited By ~ 14

Author(s):

Jan Heinrich Beinke ◽

Christian Fitte ◽

Frank Teuteberg

Keyword(s):

Data Security ◽

Design Science ◽

Science Research ◽

Design Science Research ◽

Future Research ◽

Health Records ◽

Blockchain Technology ◽

Recommendations For Action ◽

Background Data security issues still constitute the main reason for the sluggish dissemination of electronic health records (EHRs). Given that blockchain technology offers the possibility to verify transactions through a decentralized network, it may serve as a solution to secure health-related data. Therefore, we have identified stakeholder-specific requirements and propose a blockchain-based architecture for EHRs, while referring to the already existing scientific discussions on the potential of blockchain for use in EHRs. Objective This study aimed to introduce blockchain technology for EHRs, based on identifying stakeholders and systematically eliciting their requirements, and to discuss the key benefits (KBs) and key challenges (KCs) of blockchain technology in the context of EHRs. Methods The blockchain-based architecture was developed in the framework of the design science research paradigm. The requirements were identified using a structured literature review and interviews with nine health care experts. Subsequently, the proposed architecture was evaluated using 4 workshops with 15 participants. Results We identified three major EHR stakeholder groups and 34 respective requirements. On this basis, we developed a five-layer architecture. The subsequent evaluation of the artifact was followed by the discussion of 12 KBs and 12 KCs of a blockchain-based architecture for EHRs. To address the KCs, we derived five recommendations for action for science and practice. Conclusions Our findings indicate that blockchain technology offers considerable potential to advance EHRs. Improvements to currently available EHR solutions are expected, for instance, in the areas of data security, traceability, and automation by smart contracts. Future research could examine the patient’s acceptance of blockchain-based EHRs and cost-benefit analyses.

Towards a Stakeholder-Oriented Blockchain-Based Architecture for Electronic Health Records: Design Science Research Study (Preprint)

10.2196/preprints.13585 ◽

2019 ◽

Author(s):

Jan Heinrich Beinke ◽

Christian Fitte ◽

Frank Teuteberg

Keyword(s):

Data Security ◽

Design Science ◽

Science Research ◽

Design Science Research ◽

Future Research ◽

Health Records ◽

Blockchain Technology ◽

Recommendations For Action ◽

BACKGROUND Data security issues still constitute the main reason for the sluggish dissemination of electronic health records (EHRs). Given that blockchain technology offers the possibility to verify transactions through a decentralized network, it may serve as a solution to secure health-related data. Therefore, we have identified stakeholder-specific requirements and propose a blockchain-based architecture for EHRs, while referring to the already existing scientific discussions on the potential of blockchain for use in EHRs. OBJECTIVE This study aimed to introduce blockchain technology for EHRs, based on identifying stakeholders and systematically eliciting their requirements, and to discuss the key benefits (KBs) and key challenges (KCs) of blockchain technology in the context of EHRs. METHODS The blockchain-based architecture was developed in the framework of the design science research paradigm. The requirements were identified using a structured literature review and interviews with nine health care experts. Subsequently, the proposed architecture was evaluated using 4 workshops with 15 participants. RESULTS We identified three major EHR stakeholder groups and 34 respective requirements. On this basis, we developed a five-layer architecture. The subsequent evaluation of the artifact was followed by the discussion of 12 KBs and 12 KCs of a blockchain-based architecture for EHRs. To address the KCs, we derived five recommendations for action for science and practice. CONCLUSIONS Our findings indicate that blockchain technology offers considerable potential to advance EHRs. Improvements to currently available EHR solutions are expected, for instance, in the areas of data security, traceability, and automation by smart contracts. Future research could examine the patient’s acceptance of blockchain-based EHRs and cost-benefit analyses.

Flexible Access Control Mechanism for Cloud stored EHR using Consortium Blockchain

10.21203/rs.3.rs-397642/v1 ◽

2021 ◽

Author(s):

Eben Exceline C ◽

Sivakumar Nagarajan

Keyword(s):

Cloud Computing ◽

Access Control ◽

Data Privacy ◽

Data Science ◽

Data Integrity ◽

Smart Contracts ◽

Health Records ◽

Fine Grained ◽

Abstract The persevering pursuit of security has proved historically limiting the implementation of significant design improvements for Electronic Health Records (EHR). Such a vital requirement for these kinds of technical development is revamped now. This is because the patients are motivated by personalization and data science to participate in the health information sharing. The implementation of cloud computing has already shown substantial benefits for both clinical organizations and patients in managing electronic health records. The prime security issue of cloud-based electronic health records is that the patient is physically unable to own a medical record whereas a clinical organization can maintain one for them. The latter may collude with centralized cloud servers. So, there is a vulnerability of such records being tampered with in order to hide the medical malpractices. So, maintaining data integrity and data privacy becomes a significant challenge when deploying cloud computing. Therefore, in this paper, a consortium blockchain-based cloud-stored electronic health record is proposed which provides data integrity, data privacy, storage scalability, and fine-grained access control. Each process in outsourcing electronic health records to the cloud is incorporated as a transaction in a consortium ethereum blockchain through smart contracts. Through smart contracts, an attribute-based contract key is generated for the users that can decrypt the encrypted data stored in the cloud. The attribute-based contract key allows only users who are authorized to access the information ensuring data privacy and fine-grained access control. Moreover, the proposed scheme is proved to provide tamper-proof although the medical records are controlled by a group of clinical organizations.

Secure Cloud Data Audit using Protocol and Digital Signature Techniques

International Journal of Recent Technology and Engineering - 2 ◽

10.35940/ijrte.d6970.118419 ◽

2019 ◽

Vol 8 (4) ◽

pp. 430-437

Keyword(s):

Cloud Computing ◽

Digital Signature ◽

Data Security ◽

Data Integrity ◽

Computing System ◽

Outsourced Data ◽

Data Owner ◽

Storage Service ◽

Data Audit ◽

Remote Data

Cloud computing is one of the important business models in the modern Information Technology. It provides various services (hardware, software) to the users with minimal interaction and low-cost. Storage service is one of the most useful services in cloud computing, which move data owners data from local computing system to the cloud. In this paradigm, once the data moves from the local computing system to the cloud, the data owner lost the physical control of the outsourced data on the cloud. So that, storage service creates data security challenges. Therefore, the integrity of the outsourced data has to be verified frequently using public or private verification method. In this paper we focus on two data security concern such as data confidentiality and remote data integrity on cloud storage system. In order to ensure the data integrity and reduce the data owners computational resources, in this work we have proposed a remote data integrity auditing methods such as Remote Data Audit using Protocol(RDAP) and Remote Data Audit using Digital Signature (RDADS) methods. To analyze the performance of the system, first, we define the single data owner on multiple servers and then multiple data owners on a single server for public data verification. Besides, these methods not only verify the integrity of data, but also detect the invalid data block during the verification process.

Healthchain: A novel framework on privacy preservation of electronic health records using blockchain technology

PLoS ONE ◽

10.1371/journal.pone.0243043 ◽

2020 ◽

Vol 15 (12) ◽

pp. e0243043

Author(s):

Shekha Chenthara ◽

Khandakar Ahmed ◽

Hua Wang ◽

Frank Whittaker ◽

Zhenxiang Chen

Keyword(s):

Data Security ◽

Data Privacy ◽

Health Data ◽

Cyber Attacks ◽

Security Risk ◽

Patient Privacy ◽

Health Records ◽

Blockchain Technology ◽

The privacy of Electronic Health Records (EHRs) is facing a major hurdle with outsourcing private health data in the cloud as there exists danger of leaking health information to unauthorized parties. In fact, EHRs are stored on centralized databases that increases the security risk footprint and requires trust in a single authority which cannot effectively protect data from internal attacks. This research focuses on ensuring the patient privacy and data security while sharing the sensitive data across same or different organisations as well as healthcare providers in a distributed environment. This research develops a privacy-preserving framework viz Healthchain based on Blockchain technology that maintains security, privacy, scalability and integrity of the e-health data. The Blockchain is built on Hyperledger fabric, a permissioned distributed ledger solutions by using Hyperledger composer and stores EHRs by utilizing InterPlanetary File System (IPFS) to build this healthchain framework. Moreover, the data stored in the IPFS is encrypted by using a unique cryptographic public key encryption algorithm to create a robust blockchain solution for electronic health data. The objective of the research is to provide a foundation for developing security solutions against cyber-attacks by exploiting the inherent features of the blockchain, and thus contribute to the robustness of healthcare information sharing environments. Through the results, the proposed model shows that the healthcare records are not traceable to unauthorized access as the model stores only the encrypted hash of the records that proves effectiveness in terms of data security, enhanced data privacy, improved data scalability, interoperability and data integrity while sharing and accessing medical records among stakeholders across the healthchain network.

Cybersecurity in healthcare: Comparing cybersecurity maturity and experiences across global healthcare organizations (Preprint)

10.2196/preprints.24203 ◽

2020 ◽

Author(s):

Niki O'Brien ◽

Guy Martin ◽

Emilia Grass ◽

Mike Durkin ◽

Ara Darzi ◽

...

Keyword(s):

Patient Safety ◽

Digital Technology ◽

Data Security ◽

Healthcare Organizations ◽

Health Records ◽

Cyber Threats ◽

Raising Awareness ◽

The World ◽

Service Disruption

BACKGROUND Health systems around the world are increasingly reliant on digital technology. Such reliance requires that healthcare organizations consider effective cybersecurity and digital resilience as a fundamental component of patient safety, with recent cyberattacks highlighting the risks to patients and targeted organizations. OBJECTIVE The purpose of this study was to explore the current global cybersecurity landscape and maturity in healthcare. METHODS We developed and administered a survey to examine the current cybersecurity landscape and preparedness level across global healthcare organizations. RESULTS Cyber threats were a common concern for the 17 healthcare organizations who participated. The principal concerns highlighted were data security, including the manipulation or loss of electronic health records; loss of trust in the organization; and risks of service disruption. Cybersecurity maturity scoring showed that despite the majority of organizations having established cybersecurity practices, levels of awareness and education were universally poor. CONCLUSIONS Policymakers should consider raising awareness and improving education/training on cybersecurity as a fundamental tenet of patient safety.