Improving Health Information Security in Mobile Cloud Computing with Blockchain and Modular Encryption Techniques

Electronic Health Records (EHRs) have revolutionized healthcare by providing centralized access to patient data. However, these systems face significant challenges due to security breaches and fragmentation. This paper proposes a patient -centric EHR manager that leverages blockchain technology for enhanced security. The system empowers patients to control access to their data while ensuring tamper -proof record -keeping. We examine the current limitations of EHR systems, highlight the benefits of blockchain, and discuss potential implementation methods. Integrating blockchain technology into healthcare systems offers a transformative approach to managing EHRs with improved security and patient -centric control. This research paper explores the development of a Patient -Centric Electronic Health Record Manager, leveraging blockchain to ensure data integrity, confidentiality, and accessibility. By decentralizing EHR storage and enabling patient control over their medical data, this system addresses critical challenges in healthcare information management. The proposed solution aims to enhance data security, prevent unauthorized access, and streamline healthcare processes.