Information encryption transmission method and device based on block chain

Abstract

The invention provides an information encryption transmission method and device based on a block chain. The method comprises the following steps: encrypting target plaintext information based on a target AES key to obtain a target ciphertext, encrypting the target AES key based on a first ECC public key to obtain a target AES ciphertext, and generating a digital signature of the target plaintext information; and sending the target ciphertext, the target AES ciphertext and the digital signature of the target plaintext information to a receiving end, so that the receiving end decrypts the target AES ciphertext based on a first ECC private key corresponding to the first ECC public key to obtain a target AES key; decrypting the target ciphertext based on the target AES key to obtain decrypted plaintext information, and performing security verification based on the decrypted plaintext information and the digital signature of the target plaintext information, and determining that the target plaintext information is received under the condition that the security verification is passed. According to the information encryption transmission method and device based on the block chain provided by the invention, safer and more efficient information encryption transmission can be realized.

Description

technical field [0001] The present invention relates to the field of communication technology, in particular to a block chain-based information encryption transmission method and device. Background technique [0002] With the development of Internet technology, information can be transmitted between different user terminals through the Internet. Blockchain is a new application mode of computer technology such as distributed data storage, point-to-point transmission, consensus mechanism, and encryption algorithm, which can improve the security of data storage and transmission to a certain extent. However, there are still data security risks in the blockchain network, such as data in the chain being arbitrarily obtained and downloaded. In order to ensure the security of information transmission in the blockchain network, especially the safe transmission of sensitive information, the information can be encrypted by asymmetric encryption algorithm or symmetric encryption algori...

AI Technical Summary

Problems solved by technology

[0003] The present invention provides a block chain-based information encryption transmission method and device, which are used to solve the defect that it is difficult to safely and efficiently carry out information encryption transmission in the prior art, and realize safer and more efficient information encryption transmission

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