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강영구,류성열,Kang, Young-Ku,Rhew, Sung-Yul 한국정보처리학회 2000 정보처리논문지 Vol.7 No.10
전자상거래는 인터넷이라는 가상 공간을 통해 이루어지므로, 시간과 장소에 구애받지 않는다는 강점이 있는 반면, 누구나 쉽게 접근할 수 있는 개방형 네트워크의 특성에 따라 보안상의 문제점이 대두될 수 있다는 약점을 동시에 갖고 있다. 따라서, 안전하고 효율적인 전자상거래 구현을 위해서는 전자상거래 보안상의 문제를 해결하기 위한 장치가 필요한데, 이러한 장치 중에 하나가 견고한 암호 알고리즘의 구축이라 할 수 있겠다. 본 논문에서 제안한 YK2(Young Ku Kang) 암호 알고리즘은 이러한 전자상거래 보안을 충족시켜주기에 적합한 시스템으로서, 기본적으로 입·출력의 키와 암호화에 사용되는 키의 크기가 각각 128비트로 구성되고 32회전으로 전개됨으로서 기존의 64비트를 사용했던 블록 암호 알고리즘의 한계를 극복할 수 있다. 또한, 암호화에 민감한 영향을 미치는 요소 중에 하나인 키 스케줄링을 보다 복잡하게 설계함으로써 계산 복잡도의 증가와 확률 계산의 증가를 도모하였다. EC(Electronic Commerce) which is cone the virtual space through Internet, has the advantage of time and space. On the contrary, it also has weak point like security probelm because anybody can easily access to the system due to open network attribute of Internet. Theretore, we need the solutions that protect the EC security problem for safe and useful EC activity. One of these solution is the implemonlation of a strong cipher algorithm. YK2(YoungKu Kang) cipher algorithm proposed in this paper is advantage for the EC security and it overcomes the limit of the current 6/1 bits block cipher algorithm using 128 bits key length for input, output, encryption key and 32 rounds. Moreover, it is degigned for the increase of time complexity and probability calculation by adapting more complex design for key scheduling regarded as one of the important element effected to enciyption.
강영구,정은수,Kang, Y.G.,Jeong, E.S. 대한설비공학회 1997 설비공학 논문집 Vol.9 No.2
A third-order simulation model of VM heat pumps has been developed. This model allows consideration of the major losses such as heat conduction losses through regenerators and displacers, pumping losses and wall-to-gas heat transfer losses in working volumes, in addition to the heat exchanger and regenerator losses. The working volume was divided into 12 control volumes and conservation equations of mass and energy were applied to each control volume. Pressure drop was considered in regenerators only. Thermodynamic behavior of working fluid in a VM heat pump was investigated and effects of major losses on the performance of a VM heat pump were shown.
아키살롱 - 주거복지와 공동체 회복, 사회문제를 해결하고 극복하는 '건축'
강영구,류가영,마동민,Kang, Youngkoo,Ryu, Gayeong,Ma, Dongmin 대한건축사협회 2020 建築士 Vol.613 No.-
건축은 필연적으로 공공성에 대해 고민하고 풀어가야 한다. 우리는 건축이 사회문제로부터 직접적인 피해를 받는 약자와 소수자에게 도움이 된, 나아가 문제를 해결하고 극복할 수 있도록 긍정적 영향을 미친 사례를 소개하고자 한다.
강영구 ( Young-goo Kang ),이하용 ( Ha-yong Lee ),양해술 ( Hae-sool Yang ) 한국정보처리학회 2007 한국정보처리학회 학술대회논문집 Vol.14 No.1
본 연구는 보안장비의 변천사를 통하여 현상황을 파악하며, 하루가 바뀌는 디지털 혁명시대를 맞이하여 도래하는 유비쿼터스시대에 맞추어 보안장비의 향후 발전 방향에 대해 제시하였다.
지속적 수영운동참여가 내적동기와 심리적 행복감에 미치는 영향
강영구(Yoeng Gu Kang),김용규(Yong Kyu Kim) 한국사회체육학회 2013 한국사회체육학회지 Vol.0 No.53
The purpose of this study was to analyzing the relationships among participation in swimming, internal motivation and psychological happiness. In order to investigate this, in 2011, by using convenience sampling method, data was collected from an adult population of 280. Of all the questionnaires, twenty of them that turned out to have untrustworthy responses were excluded and only 260 were used for the final analysis. SPSS 20.0 statistical program and Amos 7.0 program were utilized. The findings were as follows. First, internal motivation and psychological happiness differed depending on the level of participation in swimming. Second, continuous participation in swimming, internal motivation and psychological happiness were interrelated. Third, continuous participation in swimming had an impact on internal motivation. Forth, internal motivation of participants in swimming had an influence on psychological happiness. Fifth, continuous participation in swimming affected psychological happiness.
강영구(Kang, Yeong-Ku),차윤창(Cha, Yoon-Chang),신용석(Shin, Yong-Seok) 한국구조물진단유지관리학회 2011 한국구조물진단학회 학술발표회논문집 Vol.15 No.1
National major facilities have been rigorously investigated using regular detailed inspections and In-depth inspection since the Special Law for Facilities Safety Management was made in 1995. However, the process of detailed inspection and In-depth inspection could be doubted due to intervention of facility owner for safety level evaluation, competition to obtain low price order, and low technical skills of inspection companies. Although the management processes for evaluating the inspection companies were used for several years, the process should continue to improve in the detailed inspection field. This study analyzed the recent evaluation system and the ratios of insufficient inspection.