Medical data encryption method based on block chain

Abstract

The invention discloses a medical data encryption method based on a block chain. The method comprises the steps that a patient, a doctor and a requester construct GRS codes based on finite fields respectively; the patient, the doctor and the requester correspondingly generate respective public keys and private keys according to the GRS codes, and upload the respective public keys to the blockchain; the patient and the doctor perform digital signature on the electronic medical record by using respective private keys to obtain the electronic medical record containing digital signatures of the patient and the doctor; the patient encrypts the electronic medical record containing the digital signatures of the two parties by using the own public key to generate a common signature medical record ciphertext, and uploads the common signature medical record ciphertext to the blockchain; and the requester initiates an electronic medical record viewing authorization request based on the blockchain, and the requester is authorized to view the electronic medical record after the patient verifies the identity of the requester. Based on the blockchain technology and the digital signature encryption technology, safe sharing of the medical information among different medical institutions and different doctors can be effectively ensured, and therefore, whether the medical information is tampered or leaked can be verified.

Description

technical field [0001] The invention belongs to the field of block chain technology, in particular to a block chain-based medical data encryption method. Background technique [0002] With the continuous acceleration of the construction of medical and health information, the types and scale of medical data are also growing rapidly at an unprecedented rate. During the process of seeing a doctor, the patient enters personal name, age, address, telephone number and other information from registration; during the face-to-face consultation process, the patient's physical condition, medical images and other information will also be entered into the database; , medical insurance usage and other information are added to the hospital's large database; all these information constitute the medical data generated during the patient's medical treatment. [0003] The medical data generated during the patient’s medical treatment process involves patient privacy, and has been deposited in ...

AI Technical Summary

Problems solved by technology

[0003] The medical data generated during the patient’s medical treatment process involves patient privacy, and has been deposited in the centralized database of hospitals and other medical institutions for a long time. However, due to the isolation of data among medical institutions, it is difficult to share information. It is difficult for doctors or medical institutions to fully understand patients situation; and with the improvement of the informatization of medical institutions, a large amount of accumulated medical data may face the risk of being tampered with or leaked when shared

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