• Journal of Korea Society of Digital Industry and Information Management
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• v.7 no.1
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• pp.41-49
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• 2011

We designed a security improved document DRM for protecting document based military information which is transmitted in the military information system environment. The user should be could not access document which not related to his/her role and duty, and must view the only document appropriate for his/her role and security level according to the security level of document. We improved the security of document DRM by adding to the access control module in DRM server. Our system allows operation mode authorizations for the document, considering the user's role & security level and the security level of document. And it prevents indiscriminate access to the document and damage the confidentiality and integrity of information.

• Journal of Korea Society of Digital Industry and Information Management
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• v.7 no.4
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• pp.57-66
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• 2011

We implemented the document DRM applying role based access control(RBAC) mechanism for preventing the information leakage of a document which is transmitted in network environment. It must prevent to access document not related to user role and duty, and must allow operation to document for improving security, considering user role and security level according to a document importance. We improved the security of document DRM by adding to the access control module applying RBAC for satisfying security requirements. Though the user access document, our system allows operation authorizations to document by the user's role & security level and the security attribute of RBAC. Our system prevents indiscriminate access to the documents by user who is not associated with the role, and prevents damage the confidentiality and integrity.

• Journal of the Korea Institute of Information Security & Cryptology
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• v.16 no.2
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• pp.45-54
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• 2006

As widespread of using digital documents in various fields, control the usage of digital document is needed. So, Digital Rights Management(DRM) will become a key component of digital document system, but absence of proper digital document DRM system, there is a real risk to lose important information when a hacker achieved intrusion in important system. This paper designs and implements digital document DRM system based on OMA(Open Mobile Alliance) DRM model and OpenOffice. We considered being a digital document DRM system to contain appropriate solution of security and document compatibility.

• Proceedings of the Korea Information Processing Society Conference
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• 2010.04a
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• pp.816-819
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• 2010

IT 기술의 발달로 문서의 제작, 관리, 유통, 복사 등이 점차 간단하며 쉬워지고 있다. 또한 네트워크의 발달, 저장매체의 발달로 인해 문서의 불법 복제, 무단 유출, 불법 유통 등도 함께 쉬워지고 있다. 따라서 각종 문서에 대한 보안의 중요성이 부각되기 시작하였다. 이 중 DRM(Digital Right Management)이란 기술이 가장 널리 알려졌으며, 가장 많이 사용되게 되었다. 따라서 많은 DRM 제품이 출시 되었지만 각각 다른 문서 DRM의 경우 어떤 기준없이 개발되어 하나의 PC에서 동작할 수 없는 문제점이 발생하게 되었다. 본 논문에서는 디지털 문서의 대표적인 형태인 Compound Document File Format의 Header를 수정하고, 각 문서 DRM에 고유 식별번호를 부여하여 이와 같은 문제점을 해결하는 방안에 대해 제안하고자 한다.

• Journal of the Korea Society of Computer and Information
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• v.22 no.4
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• pp.51-58
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• 2017

Research on the Development of EPUB SCP(Secure Content Protection) Technical Specification and International Standardization has been carried out as a R&D project granted by the Korea Copyright Commission since 2014. The research aims to build a standard framework for the EPUB DRM(Digital Rights Management) based on the Readium LCP(Licensed Content Protection) and KS EPUB DRM specifications, to develop element technologies for the framework, and to standardize it as an IDPF(International Digital Publishing Forum) industrial standard. One of the essential features of the EPUB DRM developed though this study is to support the lending model of the digital library. This paper introduces LSD(License Status Document) specification which is a DRM license management protocol for the digital library lending process, and also represents a model which can automatically test the implemented entities of the LSD specification, test scenarios and test materials.

• Proceedings of the Korea Information Processing Society Conference
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• 2011.04a
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• pp.997-1000
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• 2011

오늘날 전산 시스템 환경에서 보안 문제 해결을 위한 보안 메커니즘이 전 세계적으로 오랜 시간 다양하게 연구 개발되어 왔다. 하지만 이를 문서 보안에 효율적으로 활용하기 위한 기술 개발은 미흡한 실정이며 현재는 DRM 기술을 통해 문서 보안을 실현하고 있으나 효율성 및 안정성, 보안성에 있어서 여타 보안 서비스에 비해 크게 신뢰를 받지 못하고 있다. 본 논문에서는 PC 내 문서에 대한 보안 서비스를 제공하는 PC-DRM 시스템에서 사용자간 문서 전달 기능에 초점을 맞추어 효율성과 보안성을 강화하기 위한 방안을 제시하고 이를 적용하여 설계한 시스템을 소개한다. 제안 시스템은 기존 PC-DRM 의 서버 의존도를 낮춤과 동시에 사외 사용자에게 문서 전달 시에도 문서 기밀성 유지 및 우회적인 문서 내용 유출 방지가 가능하여 PC-DRM 에 대한 신뢰도 향상에 기여할 수 있을 것으로 기대한다.

• Proceedings of the KIEE Conference
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• 2006.10c
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• pp.518-520
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• 2006

Due to the rapid popularization of mobile multimedia devices and the Internet as well as the realization of high-speed data transmission and large-volume data recording media, high quality content distribution and ubiquitous information services are making progress and a new type of information distribution and network sharing service has gradually emerged into the market. It is capable of utilizing terabyte sized home servers also in private homes. Under these circumstances, in distribution of content over shared networks, it is crucial to establish DRM (Digital Rights Management) technologies to protect the content from illegal copying and usage. A truly successful DRM system must be built on open worldwide specifications and provide maximum interoperability and user acceptance. An open interoperability of DRM is able to construct highly expandable PKI based DRM, targeting usage between systems, considering the expansion of recent content distribution services and clients This document gives protocol specifications for the exchange of rights information between the DRM module, description of specifications for rights information and encrypted content formats.

• Journal of Digital Contents Society
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• v.7 no.3
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• pp.199-205
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• 2006

Due to easy access to information in our digital society, there are many cases of illegal counterfeiting and usage of personal information. Producing information with investment and effort is important indeed, but managing and protecting information is becoming a furthermore important issue. This is to promote a new detecting theory and solution for cases of intellectual property violations and plagiarizing digital contents.

• 한국디지털정책학회:학술대회논문집
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• 2003.12a
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• pp.161-170
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• 2003

Knowledge management system building knowledge acquisition, knowledge share, and knowledge maintenance for the member of corporation is expanded throughout whole industry to cope with rapid business environment. Electronic document basing knowledge management system can copy, print, and transfer knowledge to another party, so it is being regarded as a essential infrastructure to share knowledge. However, considering most of information leakage is sprung up by insider of organization, it is considered to provide countermeasure to protect illegal use from information leakage. The purpose of this paper is to establish digital information security system through design of document and manage digital information assets safely through electronic document security system protecting illegal leakage of digital information assets.

• Aerospace Engineering and Technology
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• v.7 no.1
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• pp.210-215
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• 2008

Most of technology information obtained from KSLV-I program have been managed by Program Life-Cycle Management System(PLMS). As involving technologies in the program require high level of confidentiality as those may be dealt with entities in international cooperation, the enforcement of strict security policy is inevitable. Therefore, a document security system has been developed to enhance protection in document management. This paper describes the overview and development status of the security system, integrated with PLMS, which aims at preventing illegal access and inadvertant leakage of the technology information.