Picture content consensus method based on block chain and server

Abstract

The invention provides a picture content consensus method based on a block chain and a server. On one hand, the symmetric key is encrypted by adopting an asymmetric encryption mode, so that the key ofthe encrypted picture can be broadcasted to the node of the blockchain, and when the verification node of the blockchain needs to obtain the symmetric key, the node with permission can perform decrypt by adopting a pre-stored private key so as to decrypt the encrypted picture. On the other hand, the pictures are not directly transmitted in the process of uploading the blockchain and the like; thehash abstract and the storage path of the picture are transmitted; therefore, the data interaction amount between the blockchain nodes is small, whether the picture is the original picture can be determined through the hash abstract, the encrypted picture can be obtained through the storage path, and the original picture is obtained in combination with the decryption symmetric key, so that subsequent picture content consensus operation can be executed.

Description

technical field [0001] The present invention relates to the field of block chain technology, and more specifically, to a block chain-based image content consensus method and server. Background technique [0002] With the widespread use of blockchain technology, more and more application scenarios need to store unstructured data (such as pictures) in the blockchain. For example, in supply chain finance, the business side hopes to store relevant order picture information Enter the chain, so that you can check it among a certain range of nodes on the chain to confirm the authenticity of the transaction and endorse it. However, the current blockchain system does not support it. There are several main reasons: [0003] 1. Due to the immaturity of the blockchain technology, such as the limitation of the consensus algorithm and the number of nodes, the transmission of large data in the network will inevitably lead to a decrease in performance efficiency and an increase in response...

AI Technical Summary

Problems solved by technology

[0003] 1. Due to the immaturity of the blockchain technology, such as the limitation of the consensus algorithm and the number of nodes, the transmission of large data in the network will inevitably lead to a decrease in performance efficiency and an increase in response time. For this original TPS throughput is not high Blockchain networks are bad news;

[0004] 2. Most of the blockchain systems, especially alliance chain systems, use consensus first and then execute smart contracts. However, in the consensus process, only the signing and verification of comm

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