• Proceedings of the Korea Information Processing Society Conference
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• 2011.11a
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• pp.854-857
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• 2011

전자 결재 시스템은 오프라인 문서 결재보다 효율적인 문서 관리가 가능 하고 예산 낭비를 방지할 수 있으며, 작업 능률을 극대화 할 수 있다는 장점 때문에 현재 많은 기업에서 도입하여 사용하고 있다. 하지만 상용화되어 있는 전자 결재 시스템에서 사용되는 이미지 서명은 복제 및 위조가 가능하다는 위협이 존재한다. 이러한 문제를 해결하기 위해서 단순 서명 방식을 적용한 전자 결재 시스템이 제안되었다. 하지만 단순 서명 방식을 이용한 전자 결제 시스템은 단 한 명의 결재자만을 고려한 시스템으로 실제 기업에는 다양한 직책의 결재자가 존재하기 때문에 적용하기가 어렵다. 이에 본 논문에서는 C.Boyd 의 순차 다중서명 방식을 사용하여 다수의 결제자가 서명할 수 있는 전자 결제 시스템을 제안한다.

• Journal of Internet Computing and Services
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• v.5 no.2
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• pp.49-55
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• 2004

This paper studies supplementing the points at issue bye-mail system for displaying real name of the addressee about the e-mail transmission failure that could be occurred by misspelled or mistyped e-mail address using e-mail system. E-mail system for displaying real name of the addressee is the system that increase the transmission probability by displaying searched for real name of the addressee on database. This is the study with intent to minimizes the economy loss of transmission success probability, outflow of data, and the server's over-tasking from the inaccuracy transmission of e-mail system.

• Proceedings of the Korea Association of Information Systems Conference
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• 2003.11a
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• pp.153-163
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• 2003

• Proceedings of the Korea Association of Information Systems Conference
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• 1997.10a
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• pp.127-146
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• 1997

• Proceedings of the CALSEC Conference
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• 1999.07a
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• pp.123-132
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• 1999

시스템이 GIGO를 넘어 자기검증성을 갖추려면 - 체계적 Reporting - 예외분석 및 검증논리 (업무 + IT 모두) - 업무시스템과 정보시스템의 문서화(중략)

• Proceedings of the Korean Institute of Navigation and Port Research Conference
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• 2013.10a
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• pp.167-170
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• 2013

The objective of this paper is to describe the result of development of collision avoidance supporting system, based on the electronic chart display and information system(ECDIS). In real ship operations, collision accidents happen frequently due to human errors such as the lax vigilance, misinterpretation of international regulations for preventing collisions at sea (COLREGs). We developed a system which will help to avoid these kind of accidents. This system can automatically recognize the risk of collisions, generate the safe alternative routes that comply with COLREGs, and then deliver the results into auto pilot. A virtual simulation assuming progressive collision situations revealed the usefulness of this system.

• Journal of the Korean Society for information Management
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• v.20 no.3
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• pp.51-79
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• 2003

The general purpose of deposit is to ensure that the knowledge of the present is not lost to the future. By today the status of legal deposit scheme in various countries including Korea is focusing on paper-based publication or tangible electronic publications. Born-digital publications including electronic books should be registered and be deposited for meeting the aims of deposit. This study presents the findings on deposit legislation, deposit arrangement, and accessing methods of networked electronic publications. The study suggests electronic deposit system, and outlines the technical and procedural challenges involved in developing the deposit system.

• Journal of IKEEE
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• v.19 no.4
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• pp.610-616
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• 2015

In this paper, an electronic ID system satisfying security requirements of authentication certificate was designed using fingerprint recognition. The proposed electronic ID system generates a digital signature with forgery prevention, confidentiality, content integrity, and personal identification (=non-repudiation) using fingerprint information, and also encrypts, sends, and verify it. The proposed electronic ID system exploits fingerprint instead of user password, so it avoids leakage and hijacking. And it provides same legal force as conventional authentication certificate. The proposed electronic ID consists of 4 modules, i.e. HSM device, verification server, CA server, and RA client. Prototypes of all modules are designed and verified to have correct operation.

• Journal of the Korea Institute of Information and Communication Engineering
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• v.10 no.8
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• pp.1449-1458
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• 2006

Electronic Navigational Charts (ENCs) are digital charts which contain a great variety of data on coast and sea regions. Although they contain much information that ordinary people are interested in, there is no easy way to access because they are coded in the specialized data forma, and can be visualized by using specialized system. Therefore, supporting systems need to be developed for ordinary people to easily access ENCs. This paper proposes a framework for the ENC systems based on the Web. It relies on quite general standards such as Ceography Markup Language (GML) and Scalable Vector Graphics (SVG). In the framework, ENCs coded in S-57 format are first translated into GML to be stored in a database. Once the database is built, users can request to the database what they want. According to the user request, relevant data are retrieved, and then translated into SVG to be displayed on the Web browser. By using the framework, ordinary people may easily access coast and sea information contained in the ENCs. Furthermore, the framework may provide interoperability by virtue of XML-based standards such as GML and SVG, and efficiency by virtue of database. To validate the feasibility of proposed framework, a prototype system is developed and tested.

• Proceedings of the KIPE Conference
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• 2013.07a
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• pp.556-557
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• 2013

2013년까지 KAIST 원자력 전력전자 및 로봇 연구실에서 연구한 무선전력전송 관련 연구결과를 소개한다. 본 논문에서는 전력전자를 바탕으로 원자력 발전소의 중대사고 발생 시 원전 내부 상황을 모니터링 하기 위한 로봇 및 계측장비의 전원공급을 위한 무선전력전송 시스템과 사무실이나 작업장과 같은 장소에서 항상 무선전력으로 모바일기기를 충전할 수 있는 시스템을 소개하였다.