A Secure and Efficient Blockchain-based Multi-Cloud Medical File Sharing

The blockchain-powered scheme for sharing medical files in a practical manner decentralized quality-based encryption is a secure and efficient approach for sharing sensitive medical information among healthcare providers. The system utilizes blockchain technology to store and handle the framework for restricting entry to specific areas and permissions for medical files, providing a tamper-proof and transparent mechanism for managing access to the data. Additionally, the use of decentralized attributes- based encryption ensures that patient data remains confidential and only accessible to those with the appropriate permissions. The scheme enables data owners to define granular access control policies based on specific attributes such as the type of data, patient information, and the role of the requesting party, enabling better collaboration and decision-making while ensuring data privacy and confidentiality.