Encryption method, device and equipment based on features of information and storage medium

Abstract

The embodiment of the invention discloses an encryption method, device and equipment based on features of information and a storage medium, and the method comprises the steps: obtaining a target function for describing information, and the feature information of to-be-processed target information; dividing the target information according to the feature information of the target information to obtain at least two pieces of sub-information; obtaining coordinate information corresponding to each piece of sub-information in the at least two pieces of sub-information according to the target function; encrypting the coordinate information of each piece of sub-information in the at least two pieces of sub-information to obtain a ciphertext of the coordinate information corresponding to each piece of sub-information; and determining the ciphertext of the coordinate information corresponding to each piece of sub-information as the ciphertext of the target information, and storing the ciphertext of the target information in a blockchain network. By adopting the method, the security of the target information can be improved, the method is suitable for the field of smart medical treatment, and the construction of smart cities can be further promoted.

Description

technical field [0001] The present application relates to the technical field of blockchain, and in particular to an encryption method, device, equipment and storage medium based on information characteristics. Background technique [0002] At present, under the background of big data, the confidentiality of user's disease diagnosis data, name, contact number, email address, home address, bank account number and other information in the user's electronic information file is becoming more and more important. However, in the prior art, a symmetric encryption algorithm is generally used to encrypt the generated information. For example, when encrypting a large number of patients’ medical record information generated in a medical institution, the encrypted ciphertext is relatively easy to be deciphered, and the security is not good. High, thus bringing unnecessary losses to users. Moreover, the generated ciphertext is stored in the local database of the terminal, which is easil...

AI Technical Summary

Problems solved by technology

However, in the prior art, a symmetric encryption algorithm is generally used to encrypt the generated information. For example, when encrypting a large number of patient record information generated in a medical institution, the encrypted ciphertext is relatively easy to be cracked, and the security is not good. High, thus bringing unnecessary losses to users

And the generated ciphertext is stored in the local database of the terminal, which is easy to be tampered with by illegal users, so that the target message cannot be decrypted according to the ciphertext of the target information

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