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Deriving Priorities of Competences Required for Digital Forensic Experts using AHP

AHP 방법을 활용한 디지털포렌식 전문가 역량의 우선순위 도출

  • Yun, Haejung (College of Science & Industry Convergence, Ewha Womans University) ;
  • Lee, Seung Yong (Graduate School of Information, Yonsei University) ;
  • Lee, Choong C. (Graduate School of Information, Yonsei University)
  • Received : 2017.01.23
  • Accepted : 2017.02.19
  • Published : 2017.02.28

Abstract

Nowadays, digital forensic experts are not only computer experts who restore and find deleted files, but also general experts who posses various capabilities including knowledge about processes/laws, communication skills, and ethics. However, there have been few studies about qualifications or competencies required for digital forensic experts comparing with their importance. Therefore, in this study, AHP questionnaires were distributed to digital forensic experts and analyzed to derive priorities of competencies; the first-tier questions which consisted of knowledge, technology, and attitude, and the second-tier ones which have 20 items. Research findings showed that the most important competency was knowledge, followed by technology and attitude but no significant difference was found. Among 20 items of the second-tier competencies, the most important competency was "digital forensics equipment/tool program utilization skill" and it was followed by "data extraction and imaging skill from storage devices." Attitude such as "judgment," "morality," "communication skill," "concentration" were subsequently followed. The least critical one was "substantial law related to actual cases." Previous studies on training/education for digital forensics experts focused on law, IT knowledge, and usage of analytic tools while attitude-related competencies have not given proper attention. We hope this study can provide helpful implications to design curriculum and qualifying exam to foster digital forensic experts.

오늘날 디지털포렌식 전문가는 삭제된 파일을 복구해서 찾아내는 컴퓨터 전문가 역할에만 그치는 것이 아니기 때문에, 기술 뿐 아니라 절차와 법규에 대한 지식과 소통능력, 윤리의식 등 다양한 역량이 필요하다. 하지만, 디지털포렌식을 직접 수행하는 전문가에 대한 자격 요건이나 필요한 역량에 대한 연구는 기술에 대한 연구에 비해 상대적으로 많지 않다. 따라서 본 연구에서는 미래의 다양한 난제에 대응하고 해결책을 찾아야 하는 디지털포렌식 전문가에게 필요한 역량들의 우선순위를 AHP 방법론을 활용하여 도출해 보고자 하였다. 디지털포렌식 전문가를 대상으로한 AHP 설문에서 디지털포렌식 전문가 역량을 지식, 기술, 태도로 구성된 1계층과 디지털 증거 관련 법률/규정/판례 등 총 20개 항목의 2계층으로 구분하여 우선순위를 비교하였다. 분석 결과 1계층에서 가장 중요한 항목은 지식이었고 그 다음이 기술과 태도 순이었으나 그 차이는 그리 크지 않았다. 2계층 20개 항목 중에서 가장 중요한 항목은 "디지털포렌식 장비/도구 프로그램 활용 기술"이었고, 2위는 "디지털장비에서 저장매체 데이터 추출 및 이미징 기술" 이었다. 3위부터는 "판단력", "도덕성", "소통능력", "집중력" 등 태도와 관련된 항목 순으로 나타났으며, 가장 중요하지 않은 항목은 "사건관련 실체법"으로 나타났다. 선행연구에서 디지털포렌식 전문가에 대한 교육과정은 대부분 관련법, IT지식 및 디지털포렌식 분석도구 사용법에 집중되어 있었고 자격제도도 디지털포렌식 분석도구 사용능력을 주로 평가하고 있었다. 하지만 본 연구에서 중요하게 나타난 태도 관련 항목에 대한 고려는 상대적으로 부족한 것으로 나타났다. 향후 디지털포렌식 전문가 교육과정과 자격제도 설계에 있어서 본 연구결과가 도움이 되길 기대한다.

Keywords

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