Enhancing Healthcare Data Security with Blockchain and Advanced Cryptography
Mustafa El Bizri, Hiba Bazzi, Ali H. Nassar, Ali Massoud Haidar · 2025
The Internet of Things (IoT) has transformed various industries by enabling seamless connectivity and data exchange. In healthcare, this evolution has given rise to the Internet of Medical Things (IoMT), integrating smart medical devices and digital health records. However, IoMT remains highly vulnerable to security threats, including data breaches, weak encryption mechanisms, and centralized storage risks. To address these challenges, this research introduces a new security framework for IoMT by integrating blockchain technology, advanced cryptography techniques, and decentralized storage solutions. More specifically, an additional encryption layer is introduced by using Advanced Encryption Standards (AES) -256 to protect the data and Elliptic Curve Cryptography (ECC) to securely exchange the keys. In addition, the InterPlanetary File System (IPFS) used as a storage solution, reducing dependence on centralized database while keeping security and high access capacity. Blockchain technology enhances the integrity of data and resistance to minimal storage expenses, with Multi-Factor Authentication (MFA) being introduced as an additional security layer for controlling access. By integrating the additional safety layers, the proposal structure significantly augments security, integrity and authenticity while reducing overall calculation expenses and compromised storage capacities. Comparative analysis proves that the multi-layer model provides a complete and strong solution for the IoMT world, addressing the weaknesses of traditional concentrated models.