Research
SECURITY OF SENSING-AND-ACTUATION SYSTEM
We are interested in security of sensing-and-acutation system such as drones, self-driving cars and medical devices. We show that quite a few sensors (i.e. MEMS sensor, light sensor) can be compromised by diverse kinds of physical stimuli. These attacks can be critical such as dropping drones or causing crashes of self-driving cars. We are also interested in the security of control system as a whole, which consists of "perception => planning => control". Efficience attacks on drones could be used as anti-drone technology.
CELLULAR SECURITY
Since 2012, we have analyzed security of LTE and 5G networks. In particular, we have been developing technologies to test security vulnerabilties of celllar systems. We also found many design vulnerabilities of cellular standaards, many of which have not been patched still. We closely work with 3GPP, GSMA, operators, device vendors and standard bodies.
DISTRIBUTED SYSTEM SECURITY
In the last 20 years, we have been working on distributed system, such as group key agreement and security group communication system, secure routing for P2P systems, P2P anonymous communication system, Sybil detection using online social networks and several blockchain issues.
Funded Governmental Projects (Selected)
Tracking and identifying devices and call traffic in voice phishing ecosystem, NPS, 2023
Development of Operating Technology for Protective Antidrone Configuration System at Substation, KEPRI, 2021
Development of Counter Technology to Unlicensed Unmanned Vehicles, ETRI, 2020
Automated security diagnosis framework for cellular network protocol using formal and comparative analysis, MSIT, 2020
Intelligent 5G Core Network Abnormal Attack Detection & Countermeasure Technology Development, MSIT, 2019
Research on the strengthening of security technology for consensus algorithms and applied systems in blockchain, KAIST, 2018
Implementation of Application Services for Electricity Usage Data, KEPRI, 2018
A Study on Physical Layer Security for Heterogeneous Wireless Network, MSIT, 2018
Research on Random Number Generator and Embedded Device Safety, MSIT, 2017
Research on CAPTCHA Design Based on Human Recognition Characteristics, KAIST, 2016
Development of Cloud-based Intelligent Security Technology for Providing Customized Security Services, MSIT, 2016
Building a Platform for Automated Reverse Engineering and Vulnerability Detection with Binary Code Analysis, MSIT, 2016
Development of information leakage prevention and ID management for secure drone services, MSIT, 2016
Research on the Development of Core Technology for Dynamic Network Concealment Based on SDN, ETRI, 2015
Study on Static Vulnerability Analysis of Smart Grid Embedded Devices, KEPRI, 2015
Analysis of Authentication Mechanisms in 4G Mobile Networks and Security Threat Analysis, KISA, 2014
Research on Safe and Reliable Environmental Monitoring Systems for Vehicles, NRF, 2014
Research on LTE Femtocell Technology and Security Threat Analysis, KISA, 2013
Funded Industrial Project (Selected)
Research and Development of 6G Security Technology, Samsung Electronics, 2022
Research on Detection and Defense Technology for Phone Scams using Network/App Signature, Samsung Electronics, 2021
DRAM Security Technology Research Cluster Study, Samsung Electronics, 2021
Research and Development of 6G Security Technology, Samsung Electronics, 2021
Study on Improvement Plans for Enhancing the Security of 5G Mobile Communications Network, LGU+, 2020
Cyber Physical Analysis of System Software Survivability by Stimulating Sensors on Drones, AOARD, 2020
Analysis of Vulnerabilities in LTE Network Equipment Protocol, Samsung Electronics, 2019
Study and Development of Security Analysis for LTE Network Control Plane, Qualcomm Inc., 2019
Analysis of Control Domain Protocol and Software Security Vulnerabilities in Next Generation Mobile Terminal Baseband, Samsung Electronics, 2019
Operation of the 2018 Samsung Hacking Contest, Samsung Electronics, 2018
Study of Improvement Measures for Strengthening the Security of 5G Mobile Communication Networks, LGU+, 2018
Analysis of Control Domain Protocol and Software Security Vulnerabilities in Next Generation Mobile Terminal Baseband, Samsung Electronics, 2018
Analysis of SKT-NUGU Artificial Intelligence Voice Recognition Device, SKTelecom, 2017
"Next-Generation Mobile Network Security Analysis, Samsung Electronics, 2017
Analysis of Security Vulnerabilities in Smart Car Core Module, Hyundai NGV, 2016
Analysis and Countermeasure Study of LTE Network Security Vulnerabilities, SKTelecom, 2016
Development of Blockchain Algorithm, Samsung Electronics, 2016
Operation of the 2018 Samsung Hacking Contest, Samsung Electronics, 2016
Samsung SmartTV 15-Year Product Security Analysis, Samsung Electronics, 2015
Study on Static Vulnerability Analysis of Smart Grid Embedded Devices, SKTelecom, 2015
Study on the Analysis of LTE Network Vulnerabilities and Countermeasures, SKTelecom, 2015
Samsung SmartTV 14-Year Product Security Analysys, Samsung Electronics, 2014
Research on Security Enhanced Mobile OS, Samsung Electronics, 2014
Research on the security of USIM-based mobile authentication technology , SKTelecom, 2014
Study on communication between USIM and terminal and security of USIM integrated applications, SKTelecom, 2014
Research and Development of Safe Internet of Things Gateway Technology, Samsung Electronics, 2014
Samsung SmartTV 13-Year Product Security Analysis, Samsung Electronics, 2013
Line Messenger Encryption Analysis Study, Line, 2013