Information processing method and device based on shared root key, equipment and medium

Abstract

The embodiment of the invention discloses an information processing method and device based on a shared root key, equipment and a medium and mainly relates to a blockchain technology and a hospital management technology. The method comprises steps of an objective function used for describing the information and the organization information of an organization to which target information to be processed belongs being acquired, generating a root key corresponding to the target information according to the mechanism information; generating a secret key corresponding to each piece of sub-information in the target information according to the root secret key; obtaining a first random number corresponding to each piece of sub-information, and adjusting each piece of sub-information according to the first random number; obtaining the coordinate information corresponding to each piece of sub-information according to the target function and each piece of adjusted sub-information; encrypting thecoordinate information of each piece of sub-information by adopting the key corresponding to each piece of sub-information to obtain a ciphertext of the coordinate information corresponding to each piece of sub-information; and determining the ciphertext as the ciphertext of the target information, and storing the ciphertext of the target information in the blockchain network. By adopting the method, security of the information can be improved.

Description

technical field [0001] The present application relates to the technical field of blockchain, and in particular to an information processing method, device, device and medium based on a shared root key. Background technique [0002] With the development of the network, the way of information interaction through the network is favored by a large number of users. The increase in the number of users using the network leads to an increase in the amount of information generated, and a large amount of information needs to be stored, for example, prescriptions for patients in hospital management Information such as circulation and patient management needs to be stored to facilitate subsequent traceability. The traditional information storage method is generally terminal local storage. This kind of information storage method has great risks. Illegal terminals can easily obtain locally stored information, resulting in information leakage, and illegal users can tamper with locally stor...

AI Technical Summary

Problems solved by technology

The traditional information storage method is generally terminal local storage. This kind of information storage method has great risks. Illegal terminals can easily obtain locally stored information, resulting in information leakage, and illegal users can tamper with locally stored information. Lead to low information security, and, when the local storage fails, the information cannot be retrieved, resulting in loss

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