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)

Funded Industrial Project (Selected)