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Securing Electronic Health Record System in Cloud Environment Using Blockchain Technology

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Recent Advances in Blockchain Technology

Part of the book series: Intelligent Systems Reference Library ((ISRL,volume 237))

Abstract

Current online healthcare services Electronic Health Records/Electronic Medical Records (EHR/EMR) play an important role in storing, sharing, and maintaining patients’ medical records. Implementing the EHR system in a cloud environment offers many options, including ubiquitous access, elastic computing resources, high-grade fault tolerance, and differentiation with other systems. Cloud storage solves the problem of storing complex medical data in leisure mode, while cloud service providers in transit are treated as non-covered units. Therefore, the cloud service provider has no obligation to ensure privacy and adequate access to the EHR. Consequently, security and privacy issues have become major issues for optimizing EHR systems for cloud environments. To provide security to the cloud environment the people use different cryptographic techniques. Cloud users use Trusted Third Party (TTP) for authentication and auditing, protecting unauthorized users, and authorized confidential data. Trust becomes a major barrier to sharing electronic data in cloud environments. If a third party is compromised, then there is a chance to hack the data because the client does not aware of the location information of storage. So, the trust issue is a challenging task in the cloud environment. To overcome these problems, we have introduced blockchain technology in cloud environments to securely transfer EHR data between authorized entities. Blockchain technology is important in such cases because it provides data-ledger-based features that can be distributed to all companies on the network. This approach is a tamper-proof mechanism because every health transaction information in the blockchain is stored as hash values. This approach provides tamper-proof, trust, confidentiality, integrity, authentication, availability, and easy access control to the cloud user data at the time of data transfer and rest modes.

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Correspondence to Dileep Kumar Murala .

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Murala, D.K., Panda, S.K., Sahoo, S.K. (2023). Securing Electronic Health Record System in Cloud Environment Using Blockchain Technology. In: Panda, S.K., Mishra, V., Dash, S.P., Pani, A.K. (eds) Recent Advances in Blockchain Technology. Intelligent Systems Reference Library, vol 237. Springer, Cham. https://doi.org/10.1007/978-3-031-22835-3_4

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