A New Design and Implementation of Digital Evidence Container for Triage and Effective Investigation

디지털 증거 선별 조사의 효율성을 위한 Digital Evidence Container 설계 및 구현

  • Lim, Kyung-Soo (Cyber Security-Convergence Research Laboratory, Electronics and Telecommunication Research Institute) ;
  • Lee, Chang-Hoon (Dept. of Computer Engineering, Seoul National University of Science and Technology) ;
  • Lee, Sang-In (Cyber Security-Convergence Research Laboratory, Electronics and Telecommunication Research Institute)
  • 임경수 (한국전자통신연구원 사이버융합보안연구단) ;
  • 이창훈 (서울과학기술대학교 컴퓨터공학과) ;
  • 이상진 (한국전자통신연구원 사이버융합보안연구단)
  • Received : 2012.06.18
  • Accepted : 2012.07.02
  • Published : 2012.07.25

Abstract

The law enforcement agencies in the worldwide are confiscating or retaining computer systems involved in a crime/civil case, if there are any, at the preliminary investigation stage, even though the case does not involve a cyber-crime. They are collecting digital evidences from the suspects's systems and using them in the essential investigation procedure. It requires much time, though, to collect, duplicate and analyze disk images in general crime cases, especially in cases in which rapid response must be taken such as kidnapping and murder cases. The enterprise forensics, moreover, it is impossible to acquire and duplicate hard disk drives in mass storage server, database server and cloud environments. Therefore, it is efficient and effective to selectively collect only traces of the behavior of the user activities on operating systems or particular files in focus of triage investigation. On the other hand, if we acquire essential digital evidences from target computer, it is not forensically sound to collect just files. We need to use standard digital evidence container from various sources to prove integrity and probative of evidence. In this article, we describe a new digital evidence container, we called Xebeg, which is easily able to preserve collected digital evidences selectively for using general technology such as XML and PKZIP compression technology, which is satisfied with generality, integrity, unification, scalability and security.

Acknowledgement

Supported by : 한국연구재단

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