Data transmission method and system based on intelligent contract

Abstract

The invention relates to a data transmission method based on an intelligent contract, which comprises the following steps that: a data source encrypts the to-be-transmitted data based on a first mechanism to form encrypted data and sends the encrypted data to an intelligent contract end; the intelligent contract end decrypts the encrypted data on the basis of a second mechanism corresponding to the first mechanism to form decrypted data and processes the decrypted data by using at least one logic unit to form result data; and the intelligent contract end sends the result data to a data-relatedparty, wherein the at least one logic unit executes an instruction set to achieve contract logic, and the instruction set is stored in a block chain. Due to the fact that the contract logic implemented by the intelligent contract end is safe, reliable and irreversible, only the result data can be obtained by the data-related party, and the transmitted original data can be completely shielded fromthe data-related party and any other external parties.

Description

technical field [0001] The present invention relates to the technical field of data transmission, and more particularly, to a method and system for data transmission based on smart contracts. Background technique [0002] Blockchain is a highly credible technical means for information sharing. Different organizations can exchange data and share information through the blockchain, thereby breaking the data barriers between organizations and realizing the rapid flow of data between organizations. [0003] In the process of data sharing and flow, it is inevitable to encounter the problem of protecting confidential or private data. For this part of data, it is impossible for enterprises and organizations to directly share with other organizations and individuals. How to realize the confidentiality, privacy and security of data in the process of data co-processing and data sharing is one of the factors restricting the wide application of blockchain technology in the industry. ...

AI Technical Summary

Problems solved by technology

[0006] However, there are still some problems with the above-mentioned methods of securing data in the blockchain

For example, if the data is encrypted and stored on the blockchain, and the private key is required to obtain the data, data sharing based on this method needs to maintain a complex public-private key system and trust center, which limits the scope of data use

However, based on channel isolation, more channels need to be maintained.

In addition, the way in which confidential / private data is decrypted is beyond the control of the data source, so there may be a risk of data leakage

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