A digital copyright method and system based on secure multi-party computing privacy time stamp

A secure multi-party computing and digital copyright technology, applied in the blockchain field, can solve the problems of unable to meet the original author's privacy protection, the method is urgent, and the certificate is issued quickly, so as to protect the privacy of the creation time stamp and solve the privacy protection problem. The effect of ensuring independence

Active Publication Date: 2021-03-09
INST OF INFORMATION ENG CHINESE ACAD OF SCI +1
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Problems solved by technology

[0004] However, since the creation time stamp of the copyright certificate on the blockchain is public, it cannot meet the privacy protection of some original authors or the needs of enterprises who do not want to disclose the copyright creation time from the perspective of strategic planning, as well as the existing blockchain copyright system. The copyright attribution problem brought about by the fast issuance of certificates and other characteristics, so it is urgent to design a method to solve this problem without destroying the existing blockchain copyright system architecture

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  • A digital copyright method and system based on secure multi-party computing privacy time stamp
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  • A digital copyright method and system based on secure multi-party computing privacy time stamp

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[0031] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further elaborated below through specific embodiments and accompanying drawings. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0032] Smart contracts are jointly formulated by multiple users and can be used for any transaction between users. The agreement defines the rights and obligations of both parties, and developers program these rights and obligations electronically, and the code contains conditions that will trigger the automatic execution of the contract. Once coded, the smart contract is uploaded to the blockchain network. The smart contract will periodically check whether there are related events and trigger conditions, and the events that meet the conditions will be pushed to the queue to be verified. The verification nodes o...

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Abstract

The present invention provides a digital copyright method and system based on a secure multi-party computing privacy time stamp. The method includes: Internet copyright protection service providers and users formulate smart contract rules; users create and pass copyright dispute smart contracts when disputes over copyright ownership occur, And the time stamp fragment collection of both users is saved on the blockchain; the nodes participating in the calculation on the blockchain send the calculation results to the recovery difference smart contract; the recovery difference smart contract calculates the creation time stamp difference between copyright dispute users value, and output the difference and the corresponding copyright dispute smart contract address. The present invention can solve the privacy protection problem of creation time in the blockchain copyright system without destroying the framework of the existing blockchain copyright system, ensures the anonymity of the user, and makes the private data truly in the hands of the user.

Description

technical field [0001] The present invention relates to the technical field of block chains, in particular to a digital copyright method and system based on secure multi-party computing privacy time stamps. Background technique [0002] With the advent of the Internet information age, massive original content is disseminated through digital media. As the shortcomings of traditional copyright protection, such as lengthy review process, have become very prominent, Internet copyright protection service providers have emerged as the times require. Although the digital certificates provided by many Internet copyright protection service providers are efficient in issuing certificates, because Internet copyright protection service providers are centralized institutions and the cost of copying digital copyright content is low, copyright-related information is easy to be tampered with. At the same time, due to the different credibility of different Internet copyright protection serv...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F21/10G06F21/64
CPCG06F21/10G06F21/64
Inventor 代文昊顾小卓李文渊魏本强王梦凡杨颖珊
Owner INST OF INFORMATION ENG CHINESE ACAD OF SCI
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