Implementing BE-MCSDMA for Robust Multi-Cloud Software Development

Cloud computing enables users to store and access vast amounts of data globally but faces security challenges such as privacy, confidentiality, and authentication risks. To address these, researchers employ advanced encryption mechanisms, with multi-cloud security emerging as a key solution, especially in sensitive sectors like healthcare. Building on prior designs, this work enhances Electronic Health Record (EHR) protection by integrating one-time authentication codes, digital signatures, and Diffie-Hellman key exchange. We propose a "Three Way Mechanism" that combines digital signatures for identity verification, Diffie- Hellman for secure key sharing, and AES for data encryption, ensuring confidentiality, integrity, and resilience against attacks.