Data communication method and device, equipment and storage medium

Abstract

The invention discloses a data communication method and device, equipment and a storage medium, and the method comprises the steps: obtaining to-be-communicated target data, and randomly generating a first encrypted data group comprising a first secret key; performing asymmetric encryption algorithm encryption on the first encrypted data set according to the first public key to obtain a second encrypted data set, the second encrypted data set comprising a salt value; performing symmetric encryption algorithm encryption on the target data according to the first encrypted data group to obtain ciphertext data; according to the second private key, the first secret key, the salt value and the ciphertext data, generating to-be-signed data, and encrypting the to-be-signed data to obtain signature data; and uploading the first key, the salt value, the ciphertext data and the signature data to a server. According to the method and the device, the non-repudiation of the data sender is ensured through the signature data, so that the legality of both communication parties is ensured, the data is prevented from being tampered, the replay attack is prevented, and the data communication can be performed more safely and efficiently on the basis of not reducing the encryption performance.

Description

technical field [0001] The present application relates to the technical field of communication, and in particular to a data communication method, device, equipment and storage medium. Background technique [0002] In order to ensure the secure communication of data, it is usually necessary to encrypt the data before transmission. At present, the common encryption algorithms include symmetric encryption algorithm and asymmetric encryption algorithm. Among them, the symmetric encryption algorithm includes Data Encryption Standard (Data Encryption Standard, DES) algorithm, Advanced Encryption Standard (AES) algorithm, etc. Asymmetric encryption algorithms include Ronald Rivest, Adi Shamir, Leonard Adleman (Ron Rivest, Adi Shamir, Leonard Adleman, RSA) algorithm. Since the symmetric encryption algorithm uses the same key for encryption and decryption, the key is easily intercepted during transmission in the network, resulting in data leakage. The asymmetric encryption algorith...

AI Technical Summary

Problems solved by technology

[0005] This application provides a data communication method, device, equipment and storage medium, aiming to solve the problem that the data encryption and decryption methods in the prior art cannot achieve the non-repudiation of the sender , that is, there is a problem that it is impossible to determine whether the sender / receiver of the information is legal

Images