SHEMB:A secure approach for healthcare management system using blockchain

Medical records need to be private. At the same time, it must be accessible for regular interaction authorized users. Ethereum-based blockchain allows privacy preserving sharing of decentralized databases with cryptographic data obfuscation and access control. In this work, we analyze the limitations of Ethereum-based blockchain with respect to electronic health record (EHR) sharing through a third party. A Ethereum framework for decentralized and transactional privacy preserving data sharing is proposed to address the needs of different stakeholders like patients, providers and other third involved in the generation and access of patient data records. A secure approach for healthcare management system using blockchain (SHEMB) obviates the need for a trusted third party for storing data. SHEMB uses symmetric searchable encryption technique to speedup the access to the records using the search query provided by the patient. The experimental results indicates the practical and secure nature of SHEMB.