마이데이터를 활용한 블록체인 기반 저작권 데이터 관리 및 공유 플랫폼

Abstract

An increasing number of copyright holders, consumers, and copyrighted works services platforms have stimulated the copyright data ecosystem. As a result, rights relationships related to the sharing, use, and settlement of works have become more complex. The copyright of the copyright holder’s own work needs to be protected. Until recently, however, many cases of copyright infringement occurred by consumers or distribution brokers. This has resulted in copyright owners not being paid properly, or unauthorized use of copyright by unauthorized users. Therefore, the importance of the integrity, transparency, and reliability of copyright information registered in the system and the copyrighted data and the usage records stored on the service platform has emerged in order to protect the copyright of copyright holders. Blockchain is a P2P network-based distributed ledger technology, and related works have been studied as it is expected to be able to compensate for some of the shortcomings of the existing copyright management model that lacks the features discussed. Blockchain allows the design of fully decentralized C2C models that theoretically do not require intermediaries. In practice, however, copyright management involves a variety of actors, especially for service platforms, which are necessary for areas such as user convenience. For copyright-oriented copyright management in the Blockchain network formed by a kind of intermediaries such as a service platform, MyData, a private-centric data integration management, and control model, can be applied. This thesis first analyzes the existing copyright management and copyright sharing model and discusses the limitations. It then proposes a consortium Blockchain-based copyright management model in which the service platform participates as a node, and discusses how to combine the My Data concept with Blockchain and smart contracts. Also, Blockchain-based CP-ABE is introduced and applied to the proposed model as a way for users to define access policies and store copyright data in encrypted form on the storage of the online service providers (OSP). Compared with the existing copyright management model, the proposed model allows the copyright holder to focus on copyright registration, license content design, and sharing, as the data subject. And it is expected to be able to transparently manage the usage records and the basis for the settlement of the copyrighted data that are shared and used on each platform.