Quantum-Safe Cloud Storage Architecture for Secure Healthcare Data Management

Abstract

The rapid digitalization of healthcare has resulted in large-scale generation and storage of electronic health records (EHR) across cloud infrastructures. Cloud-based healthcare systems provide scalability, flexibility, and accessibility but also introduce significant security risks. Traditional encryption techniques such as RSA and elliptic curve cryptography rely on mathematical problems that may become solvable using quantum computing algorithms. As quantum computing technologies advance, the long-term security of healthcare data stored in cloud environments becomes increasingly uncertain. This paper proposes a quantum-safe cloud storage architecture designed to protect healthcare data against future quantum attacks. The framework integrates post-quantum cryptographic algorithms, hybrid encryption mechanisms, secure key management, role-based access control, and tamper-resistant audit logging. The proposed architecture ensures confidentiality, integrity, and availability of healthcare records while maintaining compatibility with modern cloud infrastructures.