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국내 포털사이트 음원서비스 취약점분석 및 대응방안 제안
이상식,최동현,원동호,김승주,Lee, Sang-Sik,Choi, Dong-Hyun,Won, Dong-Ho,Kim, Seung-Joo 한국정보처리학회 2009 정보처리학회논문지 C : 정보통신,정보보안 Vol.16 No.6
현재 국내 음악산업은 음반시장에서 디지털음악시장으로 중심이 이동하고 있으며, 대부분의 대형 포털사이트에서 디지털 음원서비스를 제공하고 있는 추세이다. 본 논문에서는 국내 포털사이트(도시락, 싸이월드, 네이버)에서 제공하고 있는 음원서비스프로세스를 살펴보고 취약점을 분석한다. 또한 분석된 취약점을 바탕으로 실제 공격을 수행하여 음원서비스의 문제점을 보여준다. 마지막으로 본 논문에서는 이러한 취약점을 해결할 수 있는 기술적인 대응방안을 제안함으로써 기업과 저작권자의 이익을 보호하고자 한다. Nowadays, the music industry is moving from analog to digital. Most of the big portal sites provide commercial online music streaming services according to the tendency. In this paper, we analyze the security of the Korean commercial online music streaming services which are provide by the Korea's major portal sites(Dosirak, Cyworld, and Naver). Moreover, we show attacks on commercial online music streaming services that lead to an infringement of copyright and propose technical countermeasures for online commercial music streaming services, the contributions of the present work are that the measures protect the copyright of the music.
이상식,이충호,이대원,황헌,LEE, S.S.,LEE, C.H.,LEE, D.W.,HWANG, H. 한국연초학회 1995 한국연초학회지 Vol.17 No.1
Efficient algorithms for the automatic classification of flue-cured tovacco ripeness and grading have been developed The ripeness of the tobacco was classified into 4 levels vased on the color. The lab-built simple RGB color measuring system was utilized for detecting the light reflectance of the tobacco leaves. The measured data were used far training the artificial neural network The performance of the trained network was also tested far the untrained samples. The spectrophotometer was used to detect the light reflectance and absorption of the graded tobacco leaves in the frequency ranges of the visible light The measured data and the statistical analysis was performed to investigate the light characteristics of the graded samples. The measured data were obtained from samples of 5 different grades directly without considering the leaf positions. Those data were used far training the artificial neural network The performance of the trained network was also tested far the untrained samples. The neural network based sensor information processing showed successful results for grading of tobacco leaves.