• Title, Summary, Keyword: 블록체인

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Domastic Blockchain Legislation and Policy Analysis and the Limitations Deriving and Present Improvement Points (국내 블록체인 법제 및 정책 분석과 한계점 도출 및 향상점 제시 -산업 활성화와 정보보호 중심으로-)

  • An, Myeonggu;Park, Yongsuk
    • Journal of Convergence for Information Technology
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    • v.9 no.9
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    • pp.44-51
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    • 2019
  • Recently, various platforms utilizing blockchains have appeared. In order to develop the blockchain, it is required to improve related laws and institutions. In this respect, we analysis of the laws and systems related to domestic blockchains, draw out the limitations, and suggest directions for improvement. The research method was analyzed the literature and related laws through literature review. It is difficult to analyze the whole law and system at one time, so we examined the necessary laws and systems to revitalize the blockchain. It is confirmed that legal improvement is needed on the scope of electronic transactions and electronic financial transactions, electronic commerce, digital signatures, import and export, personal information protection, blockchain industry promotion and research. Through this, we expect a balanced development of effective blockchain revitalization and protection of national fundamental rights. Individual studies on the legal provisions and systems for each item in the future can be conducted.

Artificial Intelligence and Blockchain Convergence Trend and Policy Improvement Plan (인공지능과 블록체인 융합 동향 및 정책 개선방안)

  • Yang, Hee-Tae
    • Informatization Policy
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    • v.27 no.2
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    • pp.3-19
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    • 2020
  • Artificial intelligence(AI) and blockchain are developing as the core technology leading the Fourth Industrial Revolution. However, AI is still showing limitations in securing and verifying data and explaining the evidence for the results, and blockchain also has some drawbacks such as excessive energy consumption and lack of flexibility in data management. This study analyzed technological limitations of AI and blockchain and convergence trends to overcome them, and finally suggested ways to improve Korea's related policies. Specifically, in terms of R&D reinforcement, we proposed 1) mid- and long-term AI /blockchain convergence research at the national level and 2) blockchain-based AI data platform development. In terms of creating an innovative ecosystem, we also suggested 3) development of AI/blockchain convergence applications by industry, and 4) Start-up support for developing AI/blockchain convergence business models. Lastly, in terms of improving the legal system, we insisted that 5) widening the application of regulatory sandboxes and 6) improving regulations related to privacy protection is necessary.

Science Technology - 블록체인, 그 잠재력을 엿보다

  • Lee, Dong-Hun
    • TTA Journal
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    • pp.72-73
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    • 2018
  • 최근 가상화폐가 핫이슈로 부상하면서 가상화폐를 가능하게 해 준 기술인 블록체인에 대한 관심도 높아지고 있다. 어찌 보면 가상화폐보다도 더욱 큰 가치를 갖고 있는 블록체인. 과연 어떤 기술이고 어떤 잠재력이 있을까?

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User verification system for improving blockchain node reliability (블록체인 노드 신뢰성 향상을 위한 사용자 검증 시스템)

  • An, Kyuhwang;Seo, Hwajeong
    • Journal of the Korea Institute of Information and Communication Engineering
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    • v.22 no.9
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    • pp.1264-1270
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    • 2018
  • Blockchain is a technology that directly connects each node to P2P method, except for the central server. A public blockchain is one of the blockchain types, anyone can participate without any restriction. If some node find nonce, which node can broadcasted data to all nodes. At this time, if a node that finds a nonce hides malicious code in the block, all nodes participating in the chain may be infected with malicious code due to the characteristics of the decentralization system of the blockchain. In this paper, to solve the problem that hackers can participate as an any node, we propose that a user with malicious intent can not participate as a node through a firewall with AI technology. This will improve the reliability of the propagated data over existing data.

Issues in the Blockchain-Based Health Care Industry (블록체인기반 의료분야의 문제해결과 이슈)

  • Woo, Sung-hee;Lee, Yong-ju;Cho, Young-bok
    • Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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    • pp.363-366
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    • 2019
  • Blockchain technology is a new paradigm that will change existing business processes and has a significant impact on all industries, not just on specific industries. The medical industry also expects the impact of blockchain technology to be very significant. I think blockchain technology should be applied in the medical industry because the medical industry has the problem of information asymmetry due to the structural characteristics of a centralized system composed of hospitals. However, no one can be sure that the value of blockchain technology is absolutely right, and absolute trust should be avoided. Blockchain technology provides many limitations to the process in which blockchain technology is applied in the medical industry, as it can be seen as still immature in terms of security and scalability. Therefore, we analyze the application cases of blockchain technology in the medical field, current problems in the medical field, solutions and issues through Blockchain.

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Secure Healthcare Data Management and Sharing Platform Based on Hyperledger Fabric (하이퍼레저 패브릭 기반의 안전한 헬스케어 데이터 관리 및 공유 플랫폼 개발 연구)

  • Choi, Ye-Jin;Kim, Kyoung-jin
    • Journal of Internet Computing and Services
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    • v.21 no.1
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    • pp.95-102
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    • 2020
  • In this paper, we present a healthcare data integration management and sharing platform based on a permissioned blockchain-based system called the Hyperledger fabric. The Hyperledger fabric allows patients to easily access their data, share the data with agencies that need it, and also reward participants. The healthcare data is stored in the blockchain by a de-identification process. Privacy is protected by setting detailed access rights to the stored data. The proposed model provides higher security than other models using a public blockchain. This study confirms that patient data can be stored more securely, by comparing the data stored in the blockchain with that from existing information storage methods.

Blockchain Architecture of Digital Assets Transaction for Improving Reliability in P2P Environment (P2P 환경 내 자산거래의 신뢰성 향상을 위한 블록체인 아키텍처)

  • Kim, Kyoung-Jin
    • Journal of Security Engineering
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    • v.15 no.5
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    • pp.287-298
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    • 2018
  • A blockchain is one of the most interesting technology in recent years. It is distributed across and managed by P2P networks, and its reliability is to verify and approve transactions by consensus. The core characteristic is a highly secure environment that can be maintained by database replication and computational trust. Using these characteristic in this paper, we can give the transaction an assets meaning, and can register a digital assets on a blockchain, and can prove the ownership of the assets by consensus. It can also resolve conflict and possible dispute without a centralized authority. These features are integrated to suggest the Secured Assets Transaction System(SATS) to enhance by deterring forgery with encrypted confidential information.

블록체인과 미디어에 대한 소고 블록체인이 미디어 서비스에 미칠 파장과 준비되어야 할 전략적 판단 기준

  • Choe, Hong-Gyu
    • Broadcasting and Media Magazine
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    • v.23 no.3
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    • pp.20-32
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    • 2018
  • 이 글에서는 블록체인이 미디어 서비스에 미칠 파장들을 유형별로 나눠보고 블록체인이 실제 미디어 서비스에 적용된다고 할 때 어떠한 부분을 전략적으로 고려해봐야 하는지 다뤄봤다. 요약해보자면 블록체인은 미디어 서비스에 적용될 경우에 1) 콘텐츠 구성물들의 저작권 명확화, 2) 생산과 소비 수치의 정확한 산출, 3) 콘텐츠 제작 유통 과정에서 공정한 배분과 분배, 4) 콘텐츠 소유권 인증과 관리의 안정성, 5) 공유 포맷과 방식의 다각화 등에 영향을 미칠 수 있다. 블록체인이 미디어 서비스에 적용될 수 있는 수준이라고 해서 미디어 서비스 산업에서 이를 무작정 수용할 수는 없는 일이다. 따라서 주로 고려해볼만한 사안으로 1) 업무 효율화가 이뤄지는가, 2) 합리적인 대가가 도출될 수 있는가, 3) 다양한 서비스 창출이 가능한가, 4) 기존에 경험되지 않은 서비스인가, 혹은 어떻게 체감할 수 있는가 등의 전략적 판단 기준들을 제시해보았다.

A Study for the Innovativeness of Blockchain (블록체인 혁신성 연구)

  • Kim, Euiseok
    • The Journal of Society for e-Business Studies
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    • v.23 no.3
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    • pp.173-187
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    • 2018
  • After Satoshi Nakamoto published 'Bitcoin: A peer-to-peer electronic cash system' in 2008, Blockchain has been GPT (General Purpose Technologies) that affect the whole cycle of the $4^{th}$ Industrial Revolution. This study attempted to identify the innovativeness of Blockchain. Because of Blockchain's ambidextrous characteristics, Blockchain has two kinds of innovativeness, technological innovation by physical technology and social innovation by social technology. Thus, this study will be useful to increase understanding and establishing strategy for Blockchain.