Short Biography

Jaehyun Nam is an assistant professor in Department of Computer Engineering, College of SW Convergence, Dankook University. He is also maintaining a CNCF sandbox project, KubeArmor. He received his Ph.D. in School of Computing (advisor, Professor Seungwon Shin) from KAIST. He previously received his B.S. in Computer Science and Engineering from Sogang University and his M.S. in Graduate School of Information Security (advisor, Professor KyoungSoo Park) from KAIST. Before joining Dankook University, he was a principal scientist at AccuKnox and designed various security solutions for today’s cloud and edge computing systems.

Research Interests

His research interests focus on networked systems and security. He is especially interested in security issues in cloud and edge computing systems, including Software-defined Networking (SDN), Network Function Virtualization (NFV), Internet of Things (IoT), and containerization (Docker and Kubernetes).

Education

• Ph.D. in School of Computing (Information Security), KAIST, Daejeon, Korea

  • Thesis: Architectural Approaches to Enhancing the Performance and Security of Cloud Networks

  • Advisor: Seungwon Shin

• M.S. in Graduate School of Information Security, KAIST, Daejeon, Korea

  • Thesis: Scaling the Performance of Intrusion Detection System on Many-Core Processors

  • Advisor: Kyoungsoo Park

• B.S. in Computer Science and Engineering, Sogang University, Seoul, Korea

Publication

• Seungyong Yang, Brent Byunghoon Kang, Jaehyun Nam, "Optimus: Association-based Dynamic System Call Filtering for Container Attack Surface Reduction," Journal of Cloud Computing, 2024.

• Jinwoo Kim, Minjae Seo, Seungsoo Lee, Jaehyun Nam, Vinod Yegneswaran, Phillip Porras, Guofei Gu, Seungwon Shin, "Enhancing security in SDN: Systematizing attacks and defenses from a penetration perspective," Computer Networks, 2024.

• Myoungsung You, Jaehyun Nam, Minjae Seo, and Seungwon Shin, "HELIOS: Hardware-assisted High-performance Security Extension for Cloud," ACM Symposium on Cloud Computing (SoCC), 2023.

• Seungsoo Lee and Jaehyun Nam, "Kunerva: Automated Network Policy Discovery Framework for Containers," IEEE Access, 2023.

• Jaehyun Nam, Seungsoo Lee, Phillip Porras, Vinod Yegneswaran, and Seungwon Shin, "Secure Inter-Container Communications using XDP/eBPF," IEEE/ACM Transactions on Networking (ToN), 2022.

• Jaehyun Nam, Seung Ho Na, Seungwon Shin, and Taejune Park, "Reconfigurable Regular Expression Matching Architecture for Real-time Pattern Update and Payload Inspection," Journal of Network and Computer Applications(JNCA), 2022.

• Seungwoo Lee, Seungwon Woo, Jinwoo Kim, Jaehyun Nam, Vinod Yegneswaran, Phillip Porras, and Seungwon Shin, "A Framework for Policy Inconsistency Detection in Software-Defined Networks," IEEE/ACM Transactions on Networking (ToN), 2022.

• Taejune Park, Jaehyun Nam, Seung Ho Na, Jaewoong Chung, and Seungwon Shin, "Reinhardt: Real-time Reconfigurable Hardware Architecture for Regular Expression Matching for DPI," Annual Computer Security Application Conference (ACSAC), 2021.

• Jinwoo Kim, Jaehyun Nam, Suyeol Lee, Vinod Yegneswaran, Phillip Porras, and Seungwon Shin, "BottleNet: Hiding Network Bottlenecks using SDN-based Topology Deception," IEEE Transactions on Information Forensics and Security (TIFS), 2021.

• Jaehyun Nam, Seungsoo Lee, Hyunmin Seo, Phillip Porras, Vinod Yegneswaran, and Seungwon Shin, "BASTION: A Security Enforcement Network Stack for Container Networks," USENIX Annual Technical Conference (ATC), 2020.

• Yeonkeun Kim*, Jaehyun Nam*, Taejune Park, Sandra Scott-Hayward, and Seungwon Shin, "SODA: A Software-defined Security Framework for IoT Environments," Computer Networks, 2019. (*These two authors contributed equally to this work.)

• Jaehyun Nam, Hyeonseong Jo, Yeonkeun Kim, Phillip Porras, Vinod Yegneswaran, and Seungwon Shin, "Operator-defined Reconfigurable Network OS for Software-Defined Networks," IEEE/ACM Transactions on Networking (ToN), 2019.

• Jaehyun Nam, Hyeonseong Jo, Yeonkeun Kim, Phillip Porras, Vinod Yegneswaran, and Seungwon Shin, "Barista: An Event-centric NOS Composition Framework for Software-Defined Networks," IEEE International Conference on Computer Communications (INFOCOM), 2018.

• Jaehyun Nam, Junsik Seo, and Seungwon Shin, "Probius: Automated Approach for VNF and Service Chain Analysis in Software-Defined NFV," ACM Symposium on SDN Research (SOSR), 2018.

• Hyeonseong Jo, Jaehyun Nam, and Seungwon Shin, "NOSArmor: Building a Secure Network Operating System," Security and Communication Networks (SCN), 2018.

• Jaehyun Nam, Muhammad Jamshed, Byungkwon Choi, Dongsu Han, and KyoungSoo Park, "Haetae: Scaling the Performance of Network Intrusion Detection with Many-core Processors," International Symposium on Research in Attacks, Intrusions and Defenses (RAID), 2015.

Experience

Principal Scientist, AccuKnox (Jul 2020 ~ Aug 2022)

• Lead of a CNCF project, KubeArmor, for cloud-native runtime security enforcement

• Research on system and network security for cloud and edge computing systems

Post-doctoral Researcher, KAIST (Mar 2020 ~ Jun 2020)

• Research on container network security using XDP/eBPF

• Supervisor: Seungwon Shin

Research Observer, SRI International (May 2019 ~ Aug 2019)

• Design and implementation of a security-enforcement network stack for containers

• Supervisor: Phillip Porras

International Fellow, SRI International (Sept 2018 ~ Nov 2018)

• Design and implementation of a reinforcement learning system for cloud resource management

• Supervisor: Phillip Porras

Research Observer, SRI International (Dec 2017 ~ Mar 2018)

• Security analysis of prevalent container systems

• Design and implementation of a secure container architecture

• Supervisor: Phillip Porras

International Fellow, SRI International (Jun 2016 ~ Aug 2016)

• Construction of international SDN testbed for security evaluation

• Supervisor: Phillip Porras

Research Observer, SRI International (Dec 2015 ~ Feb 2016)

• Design and Implementation of a composable SDN operating system for multiple purposes

• Supervisor: Phillip Porras

Honors and Awards

Cyber Security Paper Award (Sept 2023)

• Grand Prize

• Korea Association of Cybersecurity Studies (KACS)

Cyber Security Paper Award (Sept 2022)

• Excellence Prize

• Korea Institute of Information Security and Cryptology (KIISC)

Samsung Humantech Paper Award (Feb 2020)

• Silver Prize

• Samsung Electronics

NAVER Ph.D. Fellowship Award (Nov 2018)

• NAVER

Best SDN Solution Showcase Award (Oct 2016)

• Project Delta (SDN Security Evaluation Framework) at SDN World Congress, Hague, Netherlands

• Open Networking Foundation (ONF)

Ministry Award of the Interior (Dec 2015)

• Best paper at Conference on Information Security and Cryptology Winter 2015

• Ministry of the Interior, Republic of Korea