Privacy Protection Scheme of Medical Electronic Health Records Based on Blockchain and Asymmetric Encryption

Abstract

The current privacy protection scheme of medical electronic health records ignores the security of role interaction, which leads to low security of medical electronic health record data and a long time for data encryption and decryption. This paper proposes a privacy protection method of medical electronic health records based on blockchain and asymmetric encryption. This paper uses blockchain technology and asymmetric encryption algorithm to establish an electronic health record system model, selects the alliance chain to control the permissions of alliance members, constructs the corresponding sub key, uses shared users for information interaction, obtains the file key through verification (so as to decrypt the data and obtain the shared data plain text), and realizes medical electronic health through the privacy and protection scheme process of health records. Experimental results show that the data security of the proposed method is as high as 92 %, and the encryption and decryption time is only 0.45 s, which can effectively improve the data security and shorten the data encryption and decryption time.

Uncovering Security Vulnerabilities in Electronic Medical Record Systems: A Comprehensive Review of Threats and Recommendations for Enhancement

“…Fifteen references recommend using blockchain as the most prevalent security solution for storing and managing EMRs [28], [14]. Research indicates the promising potential of blockchain in enhancing EMR security and interoperability [48]. Our study expands on these findings by demonstrating how blockchain smart contracts can streamline access management and enhance patient usability.…”

“…Various encryption methods were proposed, including the utilization of keys to regulate access through selective encryption and decryption. Asymmetric encryption can limit access solely to the holder of the private key [48]. A model utilizes Hyperledger Fabric blockchain to store encrypted EMRs, facilitating authenticated access [15].…”

The Limits Access of Medical Records in Indonesia and a Broader Propose to Support Patients in Malpractice Claims

“…or other misuses of personal data. In the other aspect, Huang et al (2022) and Hsieh et al (2021) Personal data in the medical record may be compared to a birth's certificate that also containing the person's data. The civil registry officer is only in charge of recording and storing the data and quickly gives the applicant a copy of the birth certificate.…”

“…In health information management, the hospital may carry out medical record data security systems through the support of modern technology. It may be used with blockchain and asymmetric encryption methods (Huang et al, 2022) or other more secure technologies.…”