Abstract: Current PHR( Personal Health Records) have the challenges of insecure storage and difficulty in sharing. In order to improve the security and sharing of PHR, a secure sharing model based on Hyperledger and FV( Finger Vein) feature authentication is proposed. The PHR provider combines the FV feature with the clinician's private key signature when entering the medical record to generate a PHR index. Then store the PHR index in Hyperledger Fabric, and store the real private data in Filecoin, reducing storage costs and on-chain storage pressure. And a PHR access control contract is designed to prevent malicious node attacks. Experimental results show that this model has significant advantages in performance and storage.

Key words: computer application, information security, hyperledger, finger vein, personal health records (PHR)