• The KIPS Transactions:PartC
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• v.12C no.2 s.98
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• pp.175-182
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• 2005

This paper presents encryption techniques for digital right management solutions of MPEG-4 streams. MPEG-4 is a format for multimedia streaming and stored in the MPEG-4 file format. We designed three kinds of encryption methods, which encrypt macro blocks (MBs) or motion vectors (MVs) of I-, P-VOPs (Video Object Planes), extracted from the MPEG-4 file format. We used DES to encrypt MPEG-4 data Based on theses three methods, we designed and implemented a DRM solution for an Internet broadcasting service, which enabled a MPEG-4 data streaming, and then compared the results of decryption speed and quality of rendered video sequences to get an optimal encryption method.

• Journal of Korean Library and Information Science Society
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• v.35 no.1
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• pp.319-335
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• 2004

This paper suggests how to systemize administrative metadata required for managing intellectual property rights and their applications, which has been newly requested in digital library environment. For this purpose, firstly, the types of metadata required in digital libraries were identified. Secondly, this paper detected problems in MARC that digital libraries have been using as the tool for information organization. Finally, the structures of administrative metadata required by copyright laws were analyzed. On the basis of the researches above, this paper proposed how to systemize and operate administrative metadata that interlocks MARC, Dublin Core and administrative system of copyright trust agencies.

• Journal of the Korean Society for information Management
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• v.18 no.4
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• pp.127-142
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• 2001

It has been criticized that the right of reproduction and right of communication to the public in the Copyrigt Act of Korea, which was amended in the year of 2000 in line with new environments around digital networks, limited the limitation to author’s property right in private use and library exemption too much. Solving the problem above, this study analyzes comparatively WCT, Amended Proposal for a Directive on Copyright and Related Rights in the Information Society, Copyright Law of the United States of America, Copyright Amendment(Digital Agenda), and Copyright Act of Korea. Based on the results from related case analyses and a survey on how stakeholders view copyright issue, in addition, this study presents a reasonable way of limiting rights of reproduction and rights of communication to the public.

• Proceedings of the Korean Information Science Society Conference
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• 2001.10c
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• pp.544-546
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• 2001

인터넷 사용의 보편화로 사이버 공간이 날로 확장하고 있다. 테이프나 CD로 즐기던 음악을 PC 또는 전용 플레이어를 이용해 MP3파일로 듣기도 하고 ;이 영화만에 가시 않고도 인터넷으로 영화와 비디오를 감상하는 시대가 이미 열렸다. 또한 최근에는 파일형태로 공급되는 전자 북(E-book)리 등장해 종이 책 시장을 넘보고 있다. 그러나, 디지털 컨텐츠들은 쉽고 간편하게 원본과 똑같은 품짙로 복제할 수 있을 뿐만 아니라 상상을 초월하는 빠른 속도로 이동이 가능하여 사용자들이 불법으로 얼마든지 이용할 수 있다. 현재 국내외에서 이러한 문제를 해결하기 위해 제안한 기술로 디지털 컨텐츠들을 보호하고 관리할 수 있도록 하는 DRM(Digital Rights Management)이가는 시스템들이 제안되어 계속적으로 개밭되고 있다[1]. 디지털 컨텐츠를 보호하고 저작권을 관리하는 시스템인 DRM에는 크게 세 가지의 기본 시스템(Publisher Customer, DRM Server System)이 있다. 본 논문에서는 컨텐츠를 등록하고 저작권자가 그 컨텐츠를 관리하는 Publisher System을 키 알고리즘을 이용하여 설계한다. 설계한다.

• Journal of Information Management
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• v.33 no.4
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• pp.57-84
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• 2002

Digital library in knowledge-information-based society of the 21st century should develop legally various digital information resources in order to provide information services to users. This study analyzes and examines in detail the related provisions of copyright law relating to the development of digital information resources(digitalized works, electronic books, electronic journals, electronic reserve materials etc.). This study also points out the problems of the current Copyright Act and proposed Copyright Act of Korea. And it suggests necessary measures and improved plans to promote the development of digital information resources.

• Journal of Digital Convergence
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• v.11 no.5
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• pp.1-11
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• 2013

To make the DRM technology protect adequately the copy right of digital contents, DRM software should have high quality and no defects when DRM is added to digital contents. It can be a basis for the effective protection of the copyright of digital contents to develop a quality evaluation model of DRM SW. First of all, the security of DRM SW is the most critical quality characteristic that DRM software must have. In this paper, we conducted research on how to measure the quality of security of DRM SW.

• Proceedings of the CALSEC Conference
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• 1999.11a
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• pp.226-231
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• 1999

■ 디지털 콘텐츠(Digital Contents)란\ulcorner -컴퓨터상에서 Digital(0 또는 1)로 존재 하는 무형 의 데이터(예, 멀티미디어, 영상, MP3, S/W) ■ 디지털 콘텐츠 보호의 필요성 -불법복제 파일의 유통방지 -디지털 저작권 보호, 지적재산권 보호 -사용자 인증, 기밀성, 무결성 ■ 암호학적 방법 -공개키기반구조(PKI), 인증구조(X.509) -전자서명기법 (중략)

• Journal of KIISE:Information Networking
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• v.30 no.2
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• pp.189-198
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• 2003

As people are damaged increasingly by personal information leakage, awareness about user privacy infringement is increasing. However, the existing DRM system does not support the protection of user's personal information because it is not necessary for the protection of copyrights. This paper is suggesting a license administration protocol which is more powerful to protect personal information in DRM. To protect the exposure of users identifier, this protocol uses temporary ID and token to guarantee anonymity and it uses a session key by ECDH to cryptography and Public-Key Cryptosystem for a message so that it can protect the exposure of personal information and user's privacy.

• Journal of Korean Society of Archives and Records Management
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• v.22 no.3
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• pp.125-141
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• 2022

This study aims to suggest measures for handling copyright information on government publications during records and archives management to use them freely as public works according to Article 24-2 of the Copyright Act in Korea. Through email interviews with 17 records managers, persons in charge of government publication management, and government staff with experience in production from April 4 to June 13, 2022, this study determined the current situations and problems related to producing and managing copyright information on government publications. Based on the interview findings, this research suggested the following. First, Article 24-2 of the Copyright Act must be revised to apply the Korea Open Government License (KOGL) type 1 mandatorily to all public works. Second, a cooperative system for managing copyright information on government publications should be established to improve their production and management effectiveness. Third, copyright information, such as authors, copyright holders, copyright duration, information on the copyright property transfer, public works status, and reasons for nonpublic works, must be managed through records and archives management systems. Fourth and last, information on public works must be provided during the registration number application for government publication so that everyone can access the full texts of the publications on the National Archives of Korea website.

• Journal of the Korea Institute of Information and Communication Engineering
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• v.8 no.4
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• pp.912-917
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• 2004

The increase of illegal usage and conflict in digital content market would diminish motivation of creators for their work, furthermore break down digital content market on cyber-space. Watermarking technology support to the legal users by the protection technique based on the digital content copyright protection method(DRM). Most of previous digital watermarking have embeded to the content. In this paper, we propose a wavelet based watermarking method which is used for implementing in the frequency domain.