• Proceedings of the KAIS Fall Conference
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• 2010.05a
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• pp.491-494
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• 2010

유비쿼터스 사회를 만들기 위한 핵심 기술인 RFID는 시간과 공간을 초월하여 우리에게 정보를 제공해 줄 것으로 기대되고 있지만, RFID 시스템이 가지고 있는 특성으로 인하여 프라이버시를 침해할 수 있다는 심각한 문제를 안고 있다. 이를 해결하기 위한 방법으로 다양한 연구가 진행되어 왔지만 기존의 연구들은 보안상 문제점과 태그 및 백 엔드 데이터베이스의 과도한 처리능력을 요구하고 있다. 그러나 본 논문에서 제안하는 프로토콜은 해쉬함수와 XOR연산, 키 교환을 이용하여 스푸핑이나, 재전송 공격으로부터 안전 하면서도, 백 엔드 데이터베이스 안에서의 비교연산 횟수를 줄일 수 있는 경량화된 프로토콜을 제안한다.

• Proceedings of the KAIS Fall Conference
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• 2010.05a
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• pp.393-396
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• 2010

이 시스템은 무선 주파수와 RFID 태그 사용으로 불법적인 위변조, 도��, 추적, 프라이버시 침해 등은 불가피하다. 따라서 본 논문에서는 리더와 태그 및 데이터베이스 간에 해시 체인을 이용하여 키를 생성한다. 키 정보를 전송 메시지에 추가하지 않기 때문에 공격자는 키를 획득할 수 없으며 간단한 논리 연산과 카운터만을 사용하기 때문에 저전력 RFID 시스템에 적합하다.

• Proceedings of the KAIS Fall Conference
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• 2010.05a
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• pp.432-435
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• 2010

최근 RFID 기술은 급속도로 발전하고 있는 분야로서 물류 유통 시스템을 비롯하여 향후 여러 산업과 생활 전반에 사용이 증가될 전망이다. 본 논문에서는 기존의 RFID 시스템의 보안성 향상을 위하여 정의한 배열과 진수변환 문자셋을 사용하여 안전성을 확보하였으며, 리더와 태그 간 상호 인증을 위하여 XOR, 해쉬 연산, shift 연산을 사용 하였다.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.9 no.1
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• pp.108-113
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• 2008

A proposed system can decrypt each contents block through a double buffer algorithm which can continually buffer contents by dividing a multimedia contents into some blocks and provides more improved method of encryption than existing system by being not capable of decrypting the whole multimedia contents if one key is exposed. Also, using digital signature and public encryption algorithm for mutual authentication between systems, this paper proposes the system which sends and encrypts symmetric keys for contents encryption through SOAP messages.

• Proceedings of the KSRS Conference
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• 2004.10a
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• pp.154-157
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• 2004

The KOMPSAT European Cooperation aims at enhancing existing and establishing new collaborations between KARI and various European institutions. The objective is to create mutual data and information exchange possibilities and to develop new data applications of available and future space based Earth Observation sensors. In this paper, the concept of a KOMPSAT regional application center, a joint development between KARI, ARCS and other European partners is presented. This includes the establishment of an additional KOMPSAT-2 downlink in Europe, and the developments of a state-of-the-art user service system for urban and environmental security monitoring.

• Journal of Korean Society of Industrial and Systems Engineering
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• v.20 no.43
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• pp.381-392
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• 1997

Korea and Japan have maintained an intimate relationship of economic exchange. However, even though both countries have made sound advances in the ASIAN market, they have not established mutually remarkable cooperative relations and advances in the ASIAN market. If korean companies with abundant experience and management ability provide able managers and skilled labor and if Japanese companies provide construction technology, capital and information, they could enjoy enomorous mutual benefits by advancing in the area of plant construction in foreign countries. Therefore, if they cooperate with each other by establishing complementary cooperation, both countries can gain an advantage in international competitiveness with western advanced countries.

• Journal of Contemporary Eastern Asia
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• v.20 no.2
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• pp.138-156
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• 2021

The aim of this article is to describe direction of Sino-Russian relations toward a new epoch - as the decision-making centers of both countries define them - indicating the commitment to building the future international order. It includes the synthesis of evolution of relations, descriptions of cooperation building of mutual confidence by both sides in variety of institutions; analyses of geo-economic relations emphasizing their geostrategic dimension and finally dynamics showing how two great powers want to achieve new areas of cooperation focused on building multipolar world order which is the essence of "new epoch". The argument goes towards recognizing the relationship as a "hhybrid alliance". This hybridity is a structural factor that can constrain the use of new dimensions of asymmetric interdependence as political leverage especially by United States against the two non-western powers but also facilitate to use it against West.

• Journal of Korea Technology Innovation Society
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• v.14 no.3
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• pp.516-551
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• 2011

This study analysed the institutional evolution of Korea's international cooperation of science and technology (S&T) from the viewpoint of the historical institutionalism. For this, it examined Korea's institutions for international S&T cooperation by dividing the whole period from the Korean war to the present into five sub-periods; period of technology aids, technology transfer, mutual cooperation, expanded cooperation, and highly sophisticated cooperation, respectively. It, then, reviewed the evolving process and characteristics of each period. In this study, the structure (environment), the actor (government), the institution of higher rank (science & technology policy) were considered as variables influencing upon the institutions of the international S&T cooperation. Upon this assumption, this study analysed how and through what evolutionary process the international S&T cooperation institutions have evolved so far. This study obtained the following conclusions; First, the study confirmed the existence of the "institutional layering" in the institutions of the international S&T cooperation in Korea. The momentums for the change of the institutions of the international S&T cooperation stem from international environment and domestic economic environment. They influence upon economic policy, industrial policy, and S&T policy, which, together with the actor (the government), again brings about the institutional evolution of the international S&T cooperation. Second, the institutional evolution of the international S&T cooperation is taking place gradually. As mentioned above, the momentums for the change of the institutions of the international S&T cooperation originate from international and domestic macro environment. These momentums do not directly influence upon the institutions of the international S&T cooperation, rather they give indirect influence, through other related institutions, upon the institutions of the international S&T cooperation and make its gradual change or evolution. This is because the institutions of the international S&T cooperation have the "institutional layering".

• Journal of the Korea Academia-Industrial cooperation Society
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• v.15 no.4
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• pp.2023-2028
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• 2014

The main purpose of this study is to explore the factors related to the performance of industry-university cooperation and determine methods for improving activation of industry-university cooperation. The data was collected by questionnaire survey mailed to the participating researcher and university professors which executed the university-industry cooperation projects. We determined cronbach Alpha Coefficient, pearson's correlation coefficient and multiple regression analysis. According to multiple regression analysis, reflect of mutual needs and local industry construction have statistically significant relationships with general satisfaction of university. Knowledge and working ability of industry-university cooperation, activeness of industry-university cooperation activity, Local economy scale and local industry construction have statistically significant relationships with general satisfaction of industry. In relation continuity, activeness of industry-university cooperation activity and information exchange have statistically significant relationships with relation continuity of university. Knowledge and working ability of industry-university cooperation and activeness of industry-university cooperation activity have statistically significant relationships with relation continuity of industry. In outcome utilization, knowledge and working ability of industry-university cooperation, research establishment and apparatus have statistically significant relationships with outcome utlization of university. In conclusion, capability factors, cooperative factors, political factors and external environment factors affected industry-universiry cooperation. Knowledge and working ability of industry-university cooperation will be able to upgrade on general satisfaction, relation continuity and outcome utilization.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.12 no.3
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• pp.1165-1170
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• 2011

The purpose of the study was to explore the perception of dentist and dental hygienist of Interprofessional cooperation, to identify factors influencing dentist and dental hygienist satisfaction with their cooperation. The data were collected with a questionnaire for this study from 6 April, 2009 to 27 April 2009. Data were analyzed using SPSS(Statistical Package for Social Science) WIN 12.0 Program to determine the perception of dentist and dental hygienist of Interprofessional cooperation and predicting factors on their satisfaction. The result shows that dental hygienist is recognized that degree of depression which is caused by dentist's condemnation and by dental hygienist's condemnation rather than dentist. On the other hands, dentist is recognized that the importance of interprofessional cooperation and mutual trust between dentist and dental hygienist.