Secure Data Transmission Tool using SSL, TLS and SSH

Abstract

 The growing digitization of healthcare systems and the large-scale adoption of the Internet of Medical Things (IoMT) have enabled continuous patient monitoring and real-time clinical decision support. On the other hand, the large transmission of sensitive Patient Health Information (PHI) across distributed and multi-source networks introduces significant security risks related to data confidentiality, integrity, and authenticity. Existing security approaches are often failed to address the scalability and complexity requirements of modern IoMT infrastructures, leaving healthcare systems exposed to advanced cyber threats such as man-in-the-middle (MITM) attacks, unauthorized access, and data tampering. This work describes a robust and efficient framework of data transfer using the IoMT in healthcare applications. The study merges Secure Sockets Layer,Transport Layer Security (SSL,TLS) and Secure Shell (SSH) protocols in a layer framework based on a Secure Shell layer. It used the NGINX reverse proxy architecture implemented using Docker containers to allow separation of the cryptographic computations from the application logic. This ensures mutual trust using the optional mutual TLS authentication with versions 1.2 and 1.3 of TLS. Secure communication is tested using REST and WebSocket services. Results demonstrate that the proposed approach ensures robust, scalable, and deployable protection for data-in-transit in modern healthcare infrastructures