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A blockchain digital copyright protection method and system based on the first-to-invent principle

A block chain and copyright technology, applied in the field of cryptography, can solve the problems that cannot meet the needs, the liquidity of Internet original content is high, and the block chain copyright system cannot meet the needs, so as to solve the problem of privacy protection and reduce data loss or being blocked. The effect of the possibility of tampering

Active Publication Date: 2021-06-15
INST OF INFORMATION ENG CHINESE ACAD OF SCI +1
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  • Abstract
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Problems solved by technology

[0007] At present, the traditional principle of copyright granting patents is the principle of first application, but the rapid issuance of certificates by the digital copyright system of the blockchain, the transparency of information, and the greater fluidity of Internet original content lead to the fact that the traditional first application principle cannot meet the needs, which will bring More copyright disputes
From the perspective of privacy, users have a need for privacy protection when creating the work, which cannot be met by the current blockchain copyright system

Method used

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  • A blockchain digital copyright protection method and system based on the first-to-invent principle
  • A blockchain digital copyright protection method and system based on the first-to-invent principle
  • A blockchain digital copyright protection method and system based on the first-to-invent principle

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Embodiment Construction

[0036] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be described in further detail below with reference to the accompanying drawings.

[0037] 1. Initialize the module

[0038] The Internet copyright service party formulates the smart contract for issuing certificates and the smart contract for difference recovery, and makes the rules public. Set anti-quantum security strength λ, ciphertext space m (modulus), plaintext space q (modulus) and circuit depth L. Uniformly select L+1 vectors is the key corresponding to each layer of circuit (referring to homomorphic encryption involving L+1 layer circuit, each layer corresponds to a key), matrix error vector and obey Gaussian probability distribution χ on m . Get v=As 0 +e, finally output the private key sk=s L , public key pk=(A, v). Refers to the cyclic domain with modulus q and dimension n on the positive integer Z, It refers to a cycl...

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Abstract

The invention discloses a block chain digital copyright protection method and system based on the principle of first invention. This method is: 1) When the user applies for a digital copyright certificate to the blockchain for a completed work, use the homomorphic public key of the Internet copyright server to encrypt the creation time stamp of the work, obtain the ciphertext of the creation time stamp and send it to Internet copyright service provider; 2) The Internet copyright service provider compares the creation time stamp ciphertext with the creation time evidence provided by the user, if the creation time ciphertext matches the creation time evidence, and the copyright content of the work has not been registered, Create a smart contract for issuing certificates, and send the address of the smart contract to the user; 3) The Internet copyright service party stores the ciphertext of the creation time stamp in a copyright certificate and uploads the copyright certificate to the chain. The invention solves the problem that the current original content on the network is highly mobile and the original author cannot submit the digital copyright application in time.

Description

technical field [0001] The invention belongs to the technical field of cryptography, and relates to a block chain digital copyright protection method and system based on the first-to-invent principle. Background technique [0002] With the development of the Internet, copyright issues have been repeatedly banned, especially copyright disputes over short videos, novels, original articles and other original content with great mobility. In June 2019, the Trusted Blockchain Recommendation Program released the "Blockchain Judicial Evidence Application White Paper". Due to the decentralization and non-tampering characteristics of blockchain, using blockchain to provide digital copyright protection has become one of the important means of copyright protection. [0003] At present, the traditional principle of granting patents for copyright is the principle of first application. For the same copyright content, when two or more people apply for the same invention separately, regardl...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F21/10
CPCG06F21/10G06F2221/2151
Inventor 代文昊顾小卓魏本强王梦凡李文渊
Owner INST OF INFORMATION ENG CHINESE ACAD OF SCI
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