• Annual Conference of KIPS
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• 2011.04a
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• pp.800-803
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• 2011

악성코드에 감염된 여러 대의 좀비 PC가 특정 사이트를 공격하는 해킹 방식인 DDoS 공격은 최근 7.7 DDoS 대란을 비롯하여, 1년도 채 되지 않아 3.3 DDoS 대란으로 이어지고 있다. DDoS 대란의 발생을 통해 사이버 보안 위협의 위험성이 점차 증가하고 있음을 확인할 수 있으며, 공격 경로를 통해 사용자 PC로 유입된 악성코드는 사용자의 자산인 PC에 저장되어 있는 정보들을 모두 삭제할 수 있어 공격으로 인해 발생하는 금전적, 정신적 피해가 점차 심각해지고 있다. 이러한 환경에서 조직 및 사용자가 보존해야 할 정보 자산의 기밀성, 무결성, 가용성을 실현하기 위하여 정보보호관리체계를 기반으로 지속적인 점검을 수행하여 조직 내의 위기관리 프로세스가 구축되어야 한다. 따라서 본 논문에서는 기업이 보유하고 있는 정보 자산이 외부로 유출되는 것을 방지하고, 악의적인 악성코드가 내부로 유입 되어 조직 내부의 자산을 파괴하는 위협으로부터 보안을 제공하기 위한 정보보호관리체계에 대해서 분석하고, 기업 정보보안 기능을 강화할 수 있는 방안에 대하여 제안하고자 한다.

• Journal of Korea Society of Digital Industry and Information Management
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• v.6 no.3
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• pp.49-57
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• 2010

We extended a general attack tree to apply cyber attack model for network vulnerability analysis. We defined an extended cyber attack tree (E-CAT) which extends the general attack tree by associating each node of the tree with a transition of attack that could have contributed to the cyber attack. The E-CAT resolved the limitation that a general attack tree can not express complex and sophisticate attacks. Firstly, the Boolean expression can simply express attack scenario with symbols and codes. Secondary, An Attack Generation Probability is used to select attack method in an attack tree. A CONDITION-composition can express new and modified attack transition which a aeneral attack tree can not express. The E-CAT is possible to have attack's flexibility and improve attack success rate when it is applied to cyber attack model.

• Journal of the Korea Institute of Information Security & Cryptology
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• v.12 no.5
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• pp.45-51
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• 2002

As Koblitz curve, the Frobenius endomorphism is know to be useful in efficient implementation of multiplication on non-supersingular elliptic cures defined on small finite fields of characteristic two. In this paper a method using the extended Frobenius endomorphism to speed up scalar multiplication is introduced. It will be shown that the proposed method is more efficient than Muller's block method in ［5］ because the number of point addition for precomputation is small but on the other hand the expansion length is almost same.

• Journal of the Korea Institute of Information Security & Cryptology
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• v.22 no.4
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• pp.901-911
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• 2012

The removal of security vulnerabilities during the developmental stage is found to be much more effective and much more efficient than performing the application during the operational phase. The underlying security vulnerabilities in software have become the major cause of cyber security incidents. Thus, secure coding is drawing much attention for one of its abilities includes minimizing security vulnerabilities at the source code level. Removal of security vulnerabilities at the software's developmental stage is not only effective but can also be regarded as a fundamental solution. This thesis is a research about the methods of Mobile-Secure Coding Self Assessment in order to evaluate the security levels in accordance to the application of mobile secure coding of every individual, groups, and organizations.

• The Journal of the Convergence on Culture Technology
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• v.9 no.4
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• pp.121-125
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• 2023

In winter, Jeju's Seogwipo and Jungmun areas are 2~3℃ warmer than Jeju City. The reason is that when the north wind over Halla Mountain crosses Baengnokdam of Halla Mountain and passes the 300m long and 260m vertical rock face of Donnaeko at an altitude of 1600m above sea level, the cold air turns into warm air through adiabatic compression, and the warmth rides on Donnaeko and flies to Seogwipo and Jungmun. Conversely, the south wind that rises over the sea in Seogwipo in the summer passes over Hallasan Mountain and passes 99 valleys before turning into a muggy, humid climate, making Jeju hot. In other words, it is because of The wind from Jeju City to Seogwipo-The Wind from Seogwipo to Jeju City.

• Annual Conference of KIPS
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• 2023.11a
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• pp.888-889
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• 2023

문서를 통해 기록을 남기는 과거의 기록 방식은 현대에 이르러 블로그, 인스타그램 등 다양한 SNS를 활용하는 방식으로 변모하고 있다. SNS의 발달과 대중화는 현대인에게 일반적인 일기 작성 포맷으로 자리 잡고 있다. 증가하는 수요와 디지털 기술 혁신에 대비되는 기존의 수동적인 일기 작성 애플리케이션을 대체하기 위해 본 논문은 DALL-E2와 블록체인을 활용한 일기 작성 및 민팅 애플리케이션 구현을 제안한다. 사용자는 제안하는 애플리케이션을 통해 음성인식, 광학 문자인식을 통한 다양한 일기 작성 방식을 제공받고, 완성된 일기 이미지를 디지털 자산으로서 보존할 수 있다.

• Annual Conference of KIPS
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• 2010.04a
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• pp.276-279
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• 2010

This paper is about a development of effective practice subject in electronic circuit textbook of industrial high school. This paper introduces generally about the practice subject in electronic circuit textbook of industrial high school of the 7th National curriculum and presents problem of current practice and makes an alternative idea that improve current practice. The contents of current electronic circuit textbook of industrial high school have variety topics and these topics are independence and separated. So students have some problems to apply of learned knowledge. Therefore, researcher improved the various electronic circuit practice in current electronic circuit text book and added new practice and manufactured a electronic circuit module based on these circuits. And researcher suggested new practice subject what useful electronic equipment that assembled module of result of electronic circuit practice of each section. When the last subjects are accomplished the students may have feel of achievement and high study effect from these practice. The practice subjects of this paper were manufactured after verification and tested it's performance by computer simulation program I hope that these new practice subjects make effective understanding and application of electronic circuit for student.

• Annual Conference of KIPS
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• 2009.04a
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• pp.780-783
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• 2009

기존 정보보호 콘텐츠에 대한 공유는 웹이나 메일 등을 통하여 수동적으로 배포되고, 운영관리자의 판단을 거친 후 보안등급에 맞게 제공되었다. 하지만 사이버 공간의 침해사고는 급속히 확산되어 끊임없이 보안 환경을 위협하는데 그에 대한 확산방지 대응은 즉각적이지 못한 문제점을 가지고 있다. 이러한 침해사고의 빠른 확산을 방지하기 위해서는 실시간 보안 콘텐츠 공유를 통해 각 시스템에서 콘텐츠의 추가 및 변경이 발생할 경우 자동으로 인지 또는 배포할 수 있는 정보보호 시스템을 개발할 필요가 있다. 따라서 본 논문에서는 보안등급에 따른 가상 정보공유 그룹을 구성하기 위해 P2P방식인 JXTA 플랫폼을 적용하였다. 또한 JXTA CMS의 확장을 통해 정보공유 시스템 간 연동할 수 있는 실시간 보안 콘텐츠 공유 시스템을 설계하였다. 이를 통하여 지리적으로 분산된 정보보호 콘텐츠를 실시간 자동인지와 보안등급에 맞는 실시간 공유 방식으로 배포하는 정보보호 시스템을 구현하고자 한다.

• The Journal of the Institute of Internet, Broadcasting and Communication
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• v.19 no.5
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• pp.211-217
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• 2019

The three major inventions of Jeju include the field wall of Kim Koo Pan Gwan in 1234, Jeongnang in the custom of grazing the people of Jeju, and Olleh in the tomb of Munbang-gui in 1406. Field wall, Oedam from the stone and the stone of numerical play, made Koendang, a friendship society. Even with a typhoon that is more than 30m/s, the Koendang which is about 1.5m high, will not collapse. Similarly, the main family networks of Jeju society do not collapse under any difficulties situation. When building a field wall, two stones, which are under the ground, are placed side by side, and the upper left stone is placed on top and the upper right stone is attached regularly. One stone or two stone is attached from the bottom to the top, and when a stone is small or large, a flat field is formed in one space. The Family networks is close to the grandfather, grandmother, father, mother, and me, and the distant kin represents a horizontal relationship. The field wall is a vertical relationship that builds up from bottom to top of the vertical relation, while the Koendang is a horizontal relationship where blood is distributed to the grandson of his upper grandparents. This paper proves by a non-orthogonal symmetric weighted Hadamard matrix of whether the stone in the middle of a field wall has large stones (small).

• Korean Journal of Agricultural and Forest Meteorology
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• v.15 no.2
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• pp.109-117
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• 2013

The Global Framework on Climate Services (GFCS) will guide the development of climate services that link science-based climate information and predictions with climate-risk management and adaptation to climate change. GFCS structure is made up of 5 pillars; Observations/Monitoring (OBS), Research/ Modeling/ Prediction (RES), Climate Services Information System (CSIS) and User Interface Platform (UIP) which are all supplemented with Capacity Development (CD). Corresponding to each GFCS pillar, the Commission for Agricultural Meteorology (CAgM) has been proposing "Global Initiatives in AgroMeteorology" (GIAM) in order to facilitate GFCS implementation scheme from the perspective of AgroMeteorology - Global AgroMeteorological Outlook System (GAMOS) for OBS, Global AgroMeteorological Pilot Projects (GAMPP) for RES, Global Federation of AgroMeteorological Society (GFAMS) for UIP/RES, WAMIS next phase for CSIS/UIP, and Global Centers of Research and Excellence in AgroMeteorology (GCREAM) for CD, through which next generation experts will be brought up as virtuous cycle for human resource procurements. The World AgroMeteorological Information Service (WAMIS) is a dedicated web server in which agrometeorological bulletins and advisories from members are placed. CAgM is about to extend its service into a Grid portal to share computer resources, information and human resources with user communities as a part of GFCS. To facilitate ICT resources sharing, a specialized or dedicated Data Center or Production Center (DCPC) of WMO Information System for WAMIS is under implementation by Korea Meteorological Administration. CAgM will provide land surface information to support LDAS (Land Data Assimilation System) of next generation Earth System as an information provider. The International Society for Agricultural Meteorology (INSAM) is an Internet market place for agrometeorologists. In an effort to strengthen INSAM as UIP for research community in AgroMeteorology, it was proposed by CAgM to establish Global Federation of AgroMeteorological Society (GFAMS). CAgM will try to encourage the next generation agrometeorological experts through Global Center of Excellence in Research and Education in AgroMeteorology (GCREAM) including graduate programmes under the framework of GENRI as a governing hub of Global Initiatives in AgroMeteorology (GIAM of CAgM). It would be coordinated under the framework of GENRI as a governing hub for all global initiatives such as GFAMS, GAMPP, GAPON including WAMIS II, primarily targeting on GFCS implementations.