Ensuring Secure Cloud Communication with MedTech Devices Using a Public Key Infrastructure

In the current landscape of digital healthcare, the integrity of communication between health device applications and central data repositories is paramount. To safeguard this data exchange cryptographic measures are employed. Health devices act as clients, gathering and transmitting patient information to a central server. It undergoes processing, is securely stored, shielded by potent encryption protocols like AES and RSA. The objective of this research is to leverage characteristics of Public Key Infrastructure (PKI) in protecting medical data transfer. This involves the application of the RSA algorithm to fortify the communication pathways between health device applications and the server. By reinforcing these communication conduits, the current work posits that we can substantially reduce the hazards linked to data compromises and cyber incursions. The emphasis of the current study is on the healthcare domain, thereby enhancing patient confidentiality and bolstering confidence in digital health solutions. Key performance indicators used are time for encryption and CPU usage. The improved encryption performance achieved is 0.0125 ms/byte. The optimized CPU utilization for the same data size (8 bytes) is 91.97%.