Research And Implementation Of Digital Content Security Sharing Technology Based On Blockchain

With the rapid development of the Internet,digital content is becoming the mainstream content consumed by people,and the market scale and prospect of digital content sharing platforms are expected to grow.However,the traditional digital content sharing environment has problems such as illegal use of data,plagiarism and forgery,and unequal profit distribution,leading to a decline in the growth rate of the current digital content market.At present,a trust mechanism and technology are needed to reshape the industry benefit distribution relationship.In view of the above problems,this paper proposes a secure and trusted sharing scheme of digital content based on the Blockchain environment.The Blockchain digital content secure sharing system with access control and incentive mechanism is designed and implemented by combining Blockchain technology,access control technology,IPFS distributed file system and other technologies.The main contents of this paper are as follows:First,the security sharing model of digital content based on Blockchain is being studied.First Shared model of block chain of digital content security demands analysis,in view of the current existing in the digital content security sharing scheme of transparency,poor data uncontrolled and users to share data,the problems such as positive,research based on block share digital content security chain model and layered architecture model,and the model of the detailed design.Second,the key technologies involved in the digital content security sharing scheme based on Blockchain are studied.First of all,in view of the precious storage resources on the blockchain chain,a large number of business data cannot be directly connected to the chain,this paper adopts the scheme of "off-chain storage data,onchain deposit certificate" to deal with the problem.By storing raw files in IPFS network and storing metadata on Blockchain,this scheme can effectively make up for the shortcomings of current Blockchain in data storage and efficiency.Secondly,in view of the difficulties in data control and permission control of the current digital content sharing system,this paper proposes a digital content access control model based on the Blockchain environment to realize the control of digital content owners on their own data.Finally,aiming at the problems of the traditional data sharing system,such as uneven profit distribution and users’ lack of active data sharing,this paper designs an incentive mechanism for digital content sharing oriented to alliance chain,so as to promote the scientific sharing of digital content.Thirdly,the design and implementation of a digital content security sharing system based on Blockchain.In this paper,the Fabric alliance chain is used to build the underlying Blockchain platform,and the prototype system of digital content security sharing is realized based on intelligent contract,IPFS,front and backend interaction and other technologies.The background interface and algorithm are written by Java language,and the intelligent contract is written by GO language.The prototype system includes four modules:user management,digital content sharing,authority management and integral management,and gives the function demonstration of the key modules of the system.Finally,the digital content security based on Blockchain is evaluated according to the function and performance of the shared system.The test results show that the system can meet the digital content interaction function.