Personal Health Record Sharing Scheme using Blockchain Technique

In this article we offer a new safe EHR sharing system with verified data integrity based on blockchain and cloud computing. The new system uses symmetric encryption and attributes-based encryption techniques to achieve privacy protection and fine-grained access controls in the process of personal health record sharing, aiming at the issues of data protection and loss of control rights during personal health record sharing. Compared with current systems, the new system enables patients to give private key attributes to users, which prevents many security issues. In addition, the new scheme utilises blockchain to handle scheme keys. The original strategy saves the hash upsides of encoded individual wellbeing data in blockchain and save the related file set in a savvy agreement to additional upgrade the effectiveness of confirmation of information respectability