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Blockchain digital rights protection method and system based on prior inventive principle

A blockchain and copyright technology, applied in the field of cryptography, can solve problems such as the high fluidity of original content on the Internet, failure to meet needs, copyright disputes, etc., and achieve the effect of solving the privacy protection problem of creation time stamps

Active Publication Date: 2020-01-07
INST OF INFORMATION ENG CAS +1
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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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  • Blockchain digital rights protection method and system based on prior inventive principle
  • Blockchain digital rights protection method and system based on prior inventive principle
  • Blockchain digital rights protection method and system based on prior inventive 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 blockchain digital rights protection method and system based on prior inventive principle. The method comprises the following steps: 1) when a user applies for a digital copyright certificate from a blockchain for a finished work, a creation timestamp of the work is encrypted by using a homomorphic public key of an Internet copyright service party to obtain a creation timestamp ciphertext, and sending the creation timestamp ciphertext to the Internet copyright service party; 2) the Internet copyright service party compares the creation timestamp ciphertext with creation time evidence provided by the user, if the creation time ciphertext is matched with the creation time evidence and the copyright content of the work is not registered, a certificate issuing smart contract is created, and the address of the smart contract is sent to the user; and 3) the Internet copyright service party stores the creation timestamp ciphertext in a copyright certificate and uplinks the copyright certificate, so that the problem that an original author cannot submit a digital copyright application in time due to high fluidity of original content on the network at present is solved.

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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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 CAS
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