Internet Architecture and Systems

Research Staff

  • Prof. Kazutoshi Fujikawa

    Kazutoshi Fujikawa

  • Assoc.Prof. Atsuo Inomata

    Atsuo Inomata

  • Assist.Prof. Masatoshi Kakiuchi

    Masatoshi Kakiuchi

  • Assist.Prof. Akira Yutani

    Akira Yutani

  • Assist.Prof. Kenji Ohira

    Kenji Ohira

E-mail inet-info [at]

Research Area

The objective of the Internet Architecture and Systems Laboratory (inet-lab) is to establish systems and applications in the following four noteworthy, Internet-wide areas from both theoretical and practical points of view:

1. Computer/network system management

Nation-wide internet 4K video transmission

Advanced digital library with multimedia

Methodology for network traffic analyzation

2. Large scale sensor networks, overlay network technologies

Large scale sensor network development and operation

Overlay network based on geographical location (Fig. 1)

Distributed publishing/subscription systems with in-network processing (Fig. 1)

Delay Tolerant Network (DTN) using Android, Arduino and other actual devices

3. Mobile computing/networking

Location aware services for vehicular communication systems

IPv6 GeoNetworking stack development in compliance with worldwide ITS standards (Fig. 2)

Information sharing mechanisms with geographical multicasting (Fig. 2)

Privacy protection for vehicular communication systems

4. Information security: cryptography and network security

Elliptic curve cryptography and its faster implementation

Malware analysis on MWS datasets (Fig. 3)

Privacy preservation and security risk management

CTF (Capture The Flag) Competitions

Key Features

In our laboratory, students can study a variety of topics concerned with computer networks from the network layer to the application layer. The strength of our laboratory is that students have opportunities to perform their research using actual computer network environments because all faculty members are engaged in the Information Initiative Center (ITC) of NAIST (Fig. 4). Additionally, in some cases we develop devices to create appropriate research environments. Our laboratory welcomes students at all levels of expertise, because we provide seminars on basic theoretical and practical studies as well as advanced areas.

Fig.1 Distributed publishing/subscription system on geography overlay networks

Fig.1 Distributed publishing/subscription system on geography overlay networks

Fig.2  Communication method among vehicles in the same situation

Fig.2 Communication method among vehicles in the same situation

Fig.3  Malware code

Fig.3 Malware code

Fig.4 ITC facilities

Fig.4 ITC facilities