Junho Kim (Ph.D)

Biography

• I am a researcher at the Digital Forensics Research Center, Institute of Cyber Security & Privacy, Korea University. I received my Ph.D. in Information Security from the Department of Information Security, School of Cybersecurity, Korea University. 

• My research interests span a wide range of areas within digital forensics, including digital forensics, multimedia forensics, database forensics, mobile forensics, AI-driven forensic analysis, document forensics, RAID analysis, and filesystem analysis. I am particularly passionate about exploring and analyzing unknown or unconventional data sources.

• I received my B.S. in Computer Engineering from Kangnam University in 2018, my M.S. in Information Security from Korea University in 2020, and my Ph.D. in Information Security from Korea University in 2026. 

Publications

International Journals (No. 4)

• Audio Source Identification Using Machine Learning: An Empirical Study of Voice Messages Generated by 12 Instant Messaging Applications [paper]. Junho Kim*, Minji Kim*, Jihun Joun, and Jungheum Park. Applied Soft Computing 203, Part A, 116045. November 2026. (2025 JCR Q1, 86.8%)

• An in-depth forensic examination of video files edited by Apple Photos [paper]. Junho Kim, Sangjin Lee, and Jungheum Park. Multimedia Systems 31(6), 412. October 2025. (2024 JCR Q2, 71.1%) 

• Video source identification using machine learning: A case study of 16 instant messaging applications [paper]. Hyomin Yang*, Junho Kim* , and Jungheum Park. Forensic Science International: Digital Investigation 50, 301812. October 2024. (2023 JCR Q3, 39.4%)

• Digital forensic investigation methodology for Storage Space: Based on the NIST digital forensic process [paper]. Junho Kim, Sangjin Lee, Doowon Jeong. Journal of Forensic Science 67(3), 989-1001. January 2022. (2021 JCR Q3, 38.2%) 

(*Co-first authors)

International Conferences (No. 2)

• Video source identification using machine learning: A case study of 16 instant messaging applications [paper]. Hyomin Yang, Junho Kim, and Jungheum Park. DFRWS APAC 2024. October 2024.

• Forensic Analysis of Storage Space: RAID System on Windows. Junho Kim, Jonghyun Choi, Sangjin Lee, Doowon Jeong. The International Conference on Big data, IoT, and Cloud Computing(BIC 2020). August 2020

Posters (No. 2)

• Audio Source Identification Using Machine Learning: An Empirical Study of Voice Messages Generated by 12 Instant Messaging Applications [web].  Minji Kim, Junho Kim, Jihun Joun, and Jungheum Park. DFRWS APAC 2025. Best Poster 2nd Place.

• FACT: Forensic Acquisition & Criminal investigation Tool [web]. Byeongchan Jeong, Jieon Kim, Junho Kim, Geunyeong Choi, Jewan Bang, Jungheum Park, and Sangjin Lee. DFRWS EU 2024.

Domestic Journals (No. 15)

• Identifying deepfake creation actions in Windows: A focus on 3 web-based services and 9 local tools [paper]. Jieun Kim, Junho Kim, and Jungheum Park. Journal of Digital Forensics 20(1), 1-25. February 2026.

• A preliminary study on identifying sources of voice message files [paper]. Minji Kim, Junho Kim, Jewan Bang, and Jungheum Park. Journal of Digital Forensics 18(4), 32-45. October 2024.

• Creating a mobile software reference database: challenges and recent developments [paper]. Jisu Kim, Junho Kim, Jewan Bang, and Jungheum Park. Journal of Digital Forensics 18(4), 46-58. October 2024.

• A Study on the Development and Utilization of an Automation System for building a Windows Software Reference Database [paper]. Wooju Kwon, Junho Kim, and Jungheum Park. Journal of Digital Forensics 18(3), 47-59. August 2024.

• A Study on extracting and utilizing iCloud authentication information in Windows environments [paper]. Jaeuk Kim, Junho Kim, and Jungheum Park. Journal of Digital Forensics 18(2), 36-50. June 2024.

• How to Determine the Forgery of Smartphone Text Messages [paper]. Jina Ha, Junho Kim, and Sangjin Lee. Journal of Digital Forensics 18(1), 97-109. March 2024.

• Identifying similar documents using character properties and exploring forensic applications [paper]. Jaehyeon Kim, Junho Kim, and Jungheum Park. Journal of Digital Forensics 17(4), 43-54. December 2023.

• A study on multiple metadata-based JPEG image file source identification: a forensic analysis of 16 mobile instant messaging apps [paper]. MinSoo Kim, Junho Kim, and Jungheum Park. Journal of Digital Forensics 17(4), 1-16. December 2023.

• Digital Forensic Investigation of Couchbase [paper]. Seungyong Choo, Junho Kim, and Sangjin Lee. Journal of Digital Forensics 17(1), 52-64. March 2023.

• Layout-based similar document search through representative image creation: MS PowerPoint as a case study [paper]. Siyoon Kim, Junho Kim, and Jungheum Park. Journal of Digital Forensics 17(1), 39-51. March 2023.

• A method of grouping document files using visual features [paper]. Seoyeon Jo, Junho Kim, and Jungheum Park. Journal of Digital Forensics 17(1), 26-38. March 2023.

• A study on the document history tracking using clipboard temporary files and telemetry logs of HWP [paper]. Youngki Jung, Junho Kim, Sangjin Lee, and Jungheum Park. Journal of Digital Forensics 16(3), 1-12. October 2022.

• Digital Forensic Investigation of Memcached Database: Countering Anti-Forensics [paper]. Ho Yoon, Junho Kim, Sungbae Kim, Yanghan Yang, and Sangjin Lee. Journal of Digital Forensics 16(2), 20-33. June 2022.

• Study on Windows Event Trace Log for Digital Forensics [paper]. Yohan Choi, Junho Kim, and Jungheum Park, and Sangjin Lee. Journal of Digital Forensics 15(3), 27-38. September 2021.

• A Research on Virtual Disk Reconstruction Method on Windows Storage Space [paper]. Junho Kim, Hoyong Choi, and Sangjin Lee. Journal of Digital Forensics 12(3), 27-37. December 2018.

Domestic Conferences

• ... All items have been omitted.

Projects

• Korean National Police Agency. Research on the Advancement of an Automatic Irrelevant Information Exclusion System (무관정보 자동제외 시스템 고도화 연구) [web]. May 2025-December 2025.

• Korean National Police Agency.  Development of an Automatic Irrelevant Information Exclusion System (무관정보 자동제외 시스템 개발) [web]. Faburary 2024-October 2024.

• Supreme Prosecutors’ Office, Republic of Korea. Research on data acquisition and analysis techniques related to user behavior centered on volatile data (휘발성 데이터 중심의 사용자 행위 연관 데이터 획득 및 분석기법 연구) [web]. April 2023-November 2023.

• Institute of Information & communications Technology Planning & Evaluation. Development of digital evidence analysis technique using artificial intelligence technology (인공지능 기술 활용 디지털증거 분석 기법 개발) [web]. April 2022-December 2025.

• Supreme Prosecutors’ Office, Republic of Korea. A study on big data server analysis method based on non-relational database (비관계형 데이터베이스 기반 빅데이터 서버 분석방안 연구) [web]. April 2021-November 2021.

• Electronics and Telecommunications Research Institute. Development of digital forensic technique for navigational equipment to ensure the integrity and the admissibility of digital evidence (해양사고 현장 디지털 증거물 무결성 및 증거능력 확보를 위한 항해 장비 디지털 포렌식 기법 개발) [web]. August 2019-June 2023.

• National Security Research Institute. ReFS filesystem artifact analysis and validation study (ReFS 파일시스템 아티팩트 분석과 파일시스템 분석 검증 연구) [web]. April 2019-October 2019.

• Institute of Information & communications Technology Planning & Evaluation. Development of Digital Forensic Integration Platform (디지털 포렌식 통합 플랫폼 개발) [web]. May 2018-December 2020.

• Korean National Police Agency. Development of a Damaged Document File Recovery Module (손상 문서 파일 복원 모듈 개발) [web]. May 2018-October 2018.

• National Security Research Institute. Research on Analysis and Recovery Techniques for the ReFS (ReFs 파일시스템 분석 및 복구 기술 연구) [web]. April 2018-October 2018.

• ...Certain security projects have been omitted.

Teaching Activities

Courses (No. 12)

• Seoul Cyber University, Dept. of Big Data and Information Security. Digital Forensics. March 2026-June 2026.

• Seoul Cyber University, Dept. of Big Data and Information Security. Digital Forensics. March 2025-June 2025.

• Dongguk University, Dept. of National Defense Security. Introduction to Digital Forensics. March 2025-June 2025.

• Dongguk University, Dept. of National Defense Security. Introduction to Digital Forensics. March 2024-June 2024.

• Dongguk University, Dept. of Convergence Security. Introduction to Digital Forensics. March 2024-June 2024.

• Dongguk University, Dept. of Convergence Security. Database Investigation. September 2023-December 2023.

• Dongguk University, Dept. of Convergence Security. Introduction to Digital Forensics. March 2023-June 2023.

• Dongguk University, Dept. of Convergence Security. Database Investigation. September 2022-December 2022.

• Kangnam University, Dept. of Computer Engineering. Application of Information Security. March 2022-June 2022.

• Kangnam University, Dept. of Computer Engineering. C Programming. September 2021-December 2021.

• Kangnam University, Dept. of Computer Engineering. Management and Policy to Information Security. September 2021-December 2021.

• Kangnam University, Dept. of Computer Engineering. Application of Information Security. March 2021-June 2021.

Workshop (No. 4)

• Defense Counterintelligence Command. Video Forensics. October 2025.

• Korean National Police Agency. Video Forensics. September 2025.

• Korea Fair Trade Commission. Database Forensics. July 2022, October 2022.

• Korea Fair Trade Commission. RAID Forensics. July 2022, October 2022.

Patents

International Patents (No. 2)

• Method and apparatus for identifying video source software based on metadata extraction from multimedia file [web]. Junho Kim, Hyomin Yang, and Jungheum Park. October 2025. U.S. Patent Application 19/369,048.

• Method and apparatus for recovering deleted data on low flash memory formatted with UBIFS [web]. Junho Kim, Woosung Yun, Youngki Jung, Sangjin Lee, and Jungheum Park. February 2024. U.S. Patent Application 18/583,253.

Domestic Patents (No. 5)

• Method and apparatus for recovering deleted data on low flash memory formatted with UBIFS [web]. Junho Kim, Woosung Yun, Youngki Jung, Sangjin Lee, and Jungheum Park. January 2026. 10-2916003.

• Method for classifying last saved program of a document file and apparatus for same [web]. Junho Kim, Inhyeok Lee, and Jungheum Park. June 2025. 10-2829223.

• Method and apparatus for identifying software of video source based on metadata extraction from multimedia file [web]. Junho Kim, Hyomin Yang, and Jungheum Park. October 2024. 10-2024-0148742 (Application).

• Similar document search system and method using external characteristics [web]. Junho Kim, Seoyeon Jo, and Jungheum Park. October 2023. 10-2023-0132394 (Application).

• Method and apparatus for identifying source of an image file using multiple metadata [web]. Junho Kim, Minsu Kim, and Jungheum Park. August 2023. 10-2023-0107219 (Application).

Award (No. 8)

• “Audio source identification using machine learning: An empirical study of voice messages generated by 12 instant messaging applications”, DFRWS 2025 APAC, BEST POSTER, 2025.11.11.

• “오디오 출처 식별: 인스턴트 메시징 애플리케이션의 음성메시지를 중심으로”, 2024 한국디지털포렌식학회 하계학술대회, 한국디지털포렌식학회장상, 2024.06.28.

• “활성 상태 Windows 시스템에서의 DPAPI로 암호화된 자격증명 데이터 탐지 자동화 기법 연구", 2024 한국정보보호학회 하계학술대회, 한국과학기술정보연구원장상, 2024.06.20.

• “다중 메타데이터를 활용한 동영상 출처 식별: 모바일 메신저 앱 15종을 대상으로”, 2023 한국디지털포렌식학회 동계학술대회, 한국저작권보호원장상, 2023.12.01.

• “Windows 소프트웨어 참조 데이터베이스 구축 자동화 시스템 개발 및 활용 방안에 대한 연구”, 2023 한국디지털포렌식학회 동계학술대회, 해양경찰청장상, 2023.12.01.

• “UBIFS 내 삭제된 데이터 복구 기술”, 디지털포렌식챌린지 2023 테크컨테스트, Second Place Award, 한국정보보호학회장상, 2023.11.17.

• “외형적 특징을 활용한 유사 문서 검색 시스템”, 디지털포렌식챌린지 2023 테크컨테스트, Third Place Award, 한국정보보호학회장상, 2023.11.17.

• “외형적 특징을 활용한 문서 작성 집단 분류 방법”, 2022 한국디지털포렌식학회 동계학술대회, 경찰청장상, 2022.12.05.

Software (No. 4)

• SAIDA-P(사이다-피). C-2022-044487. November 2022.

• 파일 카빙 프로그램(FICA). C-2020-031145. September 2020.

• CARPE Forensics(카르페 포렌직스). C-2019-035737. November 2019.

• DEFA(문서파일 분석기). C-2019-035736. November 2019.

Media Interviews and Public Engagement (No. 2)

• [PD수첩] "마약과 성범죄, 누가 지현의 기억을 지웠나", 2026-05-12.

• [MBN News] 수사 열쇠 '디지털포렌식' 직접 해보니…"삭제해도 그대로", 2019-12-07.