Publication list

2026

• Journal

  Selective Encryption of Sensitive Fields in Structured Logs: Quantifying Security–Utility–Performance Tradeoffs

  AUTHORS Jeonil Ji, Youngbae Song, Geumhwan Cho

  PUBLISHED IN Journal of Information Security and Applications, Volume 101, Article 104550
  September 2026 SCIE · Q2 in Computer Science, Information Systems · JCR 2025 View paper

• Journal

  Revisiting Side-Channel Resistance of GCM Implementations on AVR Microcontrollers

  AUTHORS Insung Kim, Hanbeom Shin, Sunyeop Kim, Seokhie Hong, Geumhwan Cho, HeeSeok Kim

  PUBLISHED IN IEEE Access, Volume 14
  August 2026 SCIE · Q2 in Computer Science, Information Systems · JCR 2025 View paper

• Journal

  Wireless Signal Fingerprinting Framework Based on Emphasized Spectral Features for IoT Device Authentication

  AUTHORS Hyeon Park, Geumhwan Cho, TaeGuen Kim

  PUBLISHED IN Mathematics, Volume 14, Issue 13, Article 2321
  July 2026 SCIE · Top 6% in Mathematics · JCR 2024 View paper

• Journal

  Attack-Level Failure Analysis of Invariant-Rule-Based Anomaly Detection in Industrial Control Systems

  AUTHORS Geumhwan Cho

  PUBLISHED IN Mathematics, Volume 14, Issue 11, Article 2016
  June 2026 SCIE · Top 6% in Mathematics · JCR 2024 View paper

• Conference

  CodeQL 기반 Python-C/C++ 확장 패키지 cross-language 취약점 탐지 프레임워크

  AUTHORS 지전일, 양희지, 조금환

  PUBLISHED IN 2026년 한국정보보호학회 하계학술대회 (CISC-S'26)
  May 2026

• Journal

  스트립 바이너리에서 보안 취약점 탐지를 위한 LLM 기반 프레임워크

  AUTHORS 최영호, 조금환, 최두호

  PUBLISHED IN Journal of The Korea Institute of Information Security & Cryptology (한국정보보호학회논문지), Vol. 36, No. 1, pp. 127–138
  February 2026 View paper

• Journal

  An Automated Synthesis Framework for Benchmarking Quantum Resource Costs of Symmetric-Key Cryptography

  AUTHORS Chanho Choi, Jinseob Oh, SangMan Lee, Geumhwan Cho, Dooho Choi

  PUBLISHED IN Mathematics, Volume 14, Issue 4, Article 719
  February 2026 SCIE · Top 6% in Mathematics · JCR 2024 View paper

2025

• Conference

  LLM-based Detection Framework of Memory Vulnerabilities in Stripped Binaries

  AUTHORS Youngho Choi, Geumhwan Cho, Dooho Choi

  PUBLISHED IN Mobisec: The 9th International Conference on Mobile Internet Security (Poster)
  2026

• Journal

  다크웹 CAPTCHA에 대한 CNN 기반 문자 인식 연구

  AUTHORS 장예진, 전주혁, 한지훈, 김다슬, 박영진, 류성욱, 조금환, 한미란

  PUBLISHED IN Journal of The Korea Institute of Information Security & Cryptology (한국정보보호학회논문지), Vol. 35, No. 6, pp. 1469–1480
  December 2025 View paper

2024

• Journal

  생성형 AI 기반 난독화 기법 적용 자동화 프레임워크 설계

  AUTHORS 한지훈, 박승아, 하준서, 이창민, 정경미, 한미란, 김준섭, 조금환

  PUBLISHED IN Journal of The Korea Society of Computer and Information (한국컴퓨터정보학회논문지), Vol. 30, No. 1, pp. 73–85
  January 2025 View paper

2023

• Conference

  On the Long-Term Effects of Continuous Keystroke Authentication: Keeping User Frustration Low through Behavior Adaptation

  AUTHORS Jun Ho Huh, Sungsu Kwag, Iljoo Kim, Alexandr Popov, Younghan Park, Geumhwan Cho, Juwon Lee, Hyoungshick Kim, Choong-Hoon Lee

  PUBLISHED IN UbiComp: Proceedings of the ACM on Interactive, Mobile, Wearable and Ubiquitous Technologies, Cancun, Mexico
  2023 CS Top conference · Acceptance rate: 28% View paper

2021

• Conference

  Towards Usable and Secure Location-based Smartphone Authentication

  AUTHORS Geumhwan Cho, Sungsu Kwag, Jun Ho Huh, Bedeuro Kim, Choong-Hoon Lee, Hyoungshick Kim

  PUBLISHED IN SOUPS: The 17th Symposium On Usable Privacy and Security, Virtual
  2021 CS Top conference · Acceptance rate: 36/136 = 26% View paper

2020

• Journal

  On the Security and Usability Implications of Multiple Authentication Choices on Smartphones: The More, the Better?

  AUTHORS Geumhwan Cho, Jun Ho Huh, Soolin Kim, Junsung Cho, Heesung Park, Yenah Lee, Konstantin Beznosov, Hyoungshick Kim

  PUBLISHED IN ACM Transactions on Privacy and Security, Volume 23, Issue 4, pp. 1–32
  August 2020 SCIE · Q3 View paper

• Journal

  SENTINEL: A Secure and Efficient Authentication Framework for Unmanned Aerial Vehicles

  AUTHORS Geumhwan Cho, Junsung Cho, Sangwon Hyun, Hyoungshick Kim

  PUBLISHED IN Applied Sciences, Volume 10, Issue 9, Article 3149
  April 2020 SCIE · Q2 View paper

2019

• Conference

  Understanding Users Risk Perceptions about Personal Health Records Shared on Social Networking Services

  AUTHORS Yuri Son, Geumhwan Cho, Hyoungshick Kim, Simon S. Woo

  PUBLISHED IN ASIACCS: The 12th ACM Asia Conference on Computer and Communications Security, Auckland, New Zealand
  2019 CS Top conference · Acceptance rate: 22.5% View paper

• Conference

  Data-driven Selection of Security Application Frameworks During Architectural Design

  AUTHORS Humberto Cervantes, Rick Kazman, Jungwoo Ryoo, Junsung Cho, Geumhwan Cho, Hyoungshick Kim, Jina Kang

  PUBLISHED IN HICSS: The 52nd Hawaii International Conference on System Sciences
  2019 View paper

2018

• Journal

  Two-Thumbs-Up: Physical Protection for PIN Entry Secure against Recording Attacks

  AUTHORS DaeHun Nyang, Hyoungshick Kim, Woojoo Lee, Sung-bae Kang, Geumhwan Cho, Mun-Kyu Lee, Aziz Mohaisen

  PUBLISHED IN Computers & Security, Volume 78, pp. 1–15
  September 2018 SCIE · Q2 View paper

• Conference

  Threat Modeling and Analysis of Voice Assistant Applications

  AUTHORS Geumhwan Cho, Jusop Choi, Hyoungshick Kim, Sangwon Hyun, Jungwoo Ryoo

  PUBLISHED IN WISA: The 19th World Conference on Information Security Applications, Jeju Island, Korea
  2018 Acceptance rate: 11/44 = 25% View paper

• Conference

  The Personal Identification Chord: A Four Button Authentication System for Smartwatches

  AUTHORS Ian Oakley, Jun Ho Huh, Junsung Cho, Geumhwan Cho, MD. Rasel Islam, Hyoungshick Kim

  PUBLISHED IN ASIACCS: The 11th ACM Asia Conference on Computer and Communications Security, Incheon, Korea
  2018 CS Top conference · Acceptance rate: 52/310 = 17% View paper

• Journal

  Design and Analysis of Push Notification-Based Malware on Android

  AUTHORS Sangwon Hyun, Junsung Cho, Geumhwan Cho, Hyoungshick Kim

  PUBLISHED IN Security and Communication Networks, Volume 2018, Article ID 8510256, 12 pages
  July 2018 SCIE · Q3 View paper

2017

• Conference

  Preventing DNS Amplification Attacks Using the History of DNS Queries with SDN

  AUTHORS Soyoung Kim, Sora Lee, Geumhwan Cho, Muhammad Ejaz Ahmed, Jaehoon Paul Jeong, Hyoungshick Kim

  PUBLISHED IN ESORICS: The 22nd European Symposium on Research in Computer Security, Oslo, Norway
  2017 CS Top conference · Acceptance rate: 54/339 = 16% View paper

• Conference

  SysPal: System-guided Pattern Locks on Android

  AUTHORS Geumhwan Cho, Jun Ho Huh, Junsung Cho, Seongyeol Oh, Youngbae Song, Hyoungshick Kim

  PUBLISHED IN S&P: The 38th IEEE Symposium on Security and Privacy, San Jose, USA
  2017 CS Top conference · Acceptance rate: 60/419 = 14.3% View paper

2016

• Conference

  WiPING: Wi-Fi Signal-based PIN Guessing Attack

  AUTHORS Seunghun Cha, Jaewoo Park, Geumhwan Cho, Jun Ho Huh, Hyoungshick Kim

  PUBLISHED IN CCS: The 23rd ACM Conference on Computer and Communications Security (Poster), Vienna, Austria
  2016 View paper

• Journal

  Combating Online Fraud Attacks in Mobile-based Advertising

  AUTHORS Geumhwan Cho, Junsung Cho, Youngbae Song, Donghyun Choi, Hyoungshick Kim

  PUBLISHED IN EURASIP Journal on Information Security, Vol. 2016(1)
  2016 View paper

2015

• Conference

  An Empirical Study of Click Fraud in Mobile Advertising Networks

  AUTHORS Geumhwan Cho, Junsung Cho, Youngbae Song, Hyoungshick Kim

  PUBLISHED IN IWCC: The 4th Workshop on Cyber Crime held in conjunction with ARES, Toulouse, France
  2015 View paper

• Conference

  Keyboard or Keylogger?: A Security Analysis of Third-party Keyboards on Android

  AUTHORS Junsung Cho, Geumhwan Cho, Hyoungshick Kim

  PUBLISHED IN PST: The 13rd International Conference on Privacy, Security and Trust, Izmir, Turkey
  2015 View paper

• Conference

  On the Effectiveness of Pattern Lock Strength Meters – Measuring the Strength of Real World Pattern Locks

  AUTHORS Youngbae Song, Geumhwan Cho, Seongyeol Oh, Hyoungshick Kim, Jun Ho Huh

  PUBLISHED IN CHI: The 33rd ACM SIGCHI Conference on Human Factors in Computing Systems, Seoul, Korea
  2015 CS Top conference · Acceptance rate: 565/2435 = 23% View paper

• Conference

  A Framework for Security Services Based on Software-Defined Networking

  AUTHORS Jaehon Jeong, Jihyeok Seo, Geumhwan Cho, Hyoungshick Kim, Jung-Soo Park

  PUBLISHED IN DC2: The 2nd Workshop on Device Centric Cloud
  2015 View paper