Medical information management system based on block chain technology

Abstract

The invention discloses a medical information management system based on a block chain technology. The medical information management system comprises a data acquisition module, an identity authentication module, a medical data storage module, a data sharing module, an intelligent contract module and a patient privacy protection module. The invention belongs to the technical field of medical information, and particularly relates to a medical information management system based on a block chain technology. According to the scheme, a security parameter, a public key and a random number are generated to initialize a process, a registration center carries out private key matching to complete server registration, and a device password is calculated according to a device ID; splicing the device password and the security parameter in the registration center and carrying out hash processing on the device password and the security parameter; the method comprises the following steps: initializing medical data, partitioning the data, calculating a verification identifier and a file identifier, and performing information integrity check; patient sensitive information ranges and objects to be encrypted are determined, encryption algorithms and key lengths are selected according to types and importance degrees, access levels are distributed, different keys correspond to different access levels, and fine management is achieved.

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