Securing EH Records Using Blockchain and Secure FTP Transfer

The management of Electronic Health Records (EHRs) demands strong protection against unauthorized access, data breaches, and manipulation. Traditional centralized storage systems often struggle to provide reliable security and transparency. To address these issues, this work introduces a hybrid security framework that integrates blockchain technology with Secure File Transfer Protocol (SFTP). In the proposed system, sensitive healthcare data is encrypted and transferred through a secure SFTP channel, ensuring confidentiality during transmission. Instead of storing medical files directly on the blockchain, their hash values and essential metadata are recorded on a permissioned blockchain network. This approach creates an immutable and verifiable audit trail that helps detect any form of tampering. Access to patient records is controlled through secure authentication mechanisms, while encryption safeguards the information from unauthorized viewing. By combining encrypted file transfer with blockchain-based integrity verification, the system offers a scalable, transparent, and trustworthy solution for next-generation healthcare data management. This framework strengthens privacy, enhances data integrity, and builds confidence among patients and healthcare providers in digital health environments.