전자공학회논문지 (Journal of the Institute of Electronics and Information Engineers)

대한전자공학회 (The Institute of Electronics and Information Engineers)
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Emulab 테스트베드 환경에서의 분산 스테가노그래피 연구

Research on Steganography in Emulab Testbed

  • 정기현 (경일대학교 사이버보안학과) ;
  • 석우진 (한국과학기술정보연구원 첨단연구망센터)
  • Jung, Ki-Hyun (Department of Cyber Security, Kyungil University) ;
  • Seok, Woo-Jin (Department of Advanced KREONET Center, Korea Institute of Science and Technology Information)
  • 투고 : 2015.09.22
  • 심사 : 2015.11.03
  • 발행 : 2015.11.25
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초록

스테가노그래피는 비밀 데이터가 숨겨져 있다는 그 자체를 숨기는 방법을 말한다. Emulab은 연구자가 언제든지 원하는 운영체제 시스템과 네트워크 토폴리지를 구성할 수 있도록 제공하는 프레임워크이다. 본 논문에서는 Emulab 환경에서 스테가노그래피 기법을 처음으로 적용하여 분산 처리가 가능함을 보이고자 한다. 칼라 비트맵 이미지를 사용하여 Emulab 환경에서 한대의 서버와 여러 대의 클라이언트별로 나누어 처리하게 함으로써 알고리즘의 성능을 평가한다. 커버 이미지로 사용하는 칼라 이미지는 RGB 영역으로 각각 나누어지고, 각각의 영역에 대해서 비밀 데이터를 각 클라이언트에서 분산처리하게 하고, 성능을 비교하게 된다. 실험결과에서는 커버 이미지의 크기가 증가함에 따라 클라이언트/서버 구조를 가진 Emulab 환경에서 실행 시간이 지속적으로 향상됨을 보여주고 있다.

Steganography is to conceal the existence of secrete data itself. The Emulab is a framework to provide real systems and network topology that can set up at anytime by researchers. In this paper, we show that steganography techniques can be applied in the Emulab environment. Steganography methods are evaluated on a standalone and sharing environments using the color bitmap images. The cover image is divided into RGB channels and then embedded the secret data at each client. The experimental results demonstrate that execution time is better in client/server environment as cover image size is increasing.

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