Page 8 - KAIST GSIS 2023 Vol.09

▶▶ 재학생 인터뷰 ▶▶ TUAN HOANG DINH

ing the same problem. So, my professor encouraged LTESniffer on Github, I just thought that “Well, it
me to develop a sniffer to support security research might have 200 stars”. However, when the num-
on cellular networks. That motivation led to the de- ber of stars has been increasing rapidly, and many
velopment of LTESniffer. people reported good feedback about LTESniffer,
During the developing time of LTESniffer, we had to now I feel happy because I have developed a useful,
deal with several challenges due to the complexity meaningful tool for researchers around the world.
of the LTE protocol. We had to read a lot of standard I hope that LTESniffer will continue contributing to
documents to understand the protocol and develop the security of the LTE network.
many algorithms. Another challenge was the con-
figuration of base stations is different and not always
Q Looking forward, what enhancements
achievable, some of them are encrypted. The experi-
or improvements do you hope to imple-
ment was also challenging, we needed to do outdoor
experiments because we want LTESniffer to support ment in future versions of LTEsniffer?
commercial base stations. There were many times
A : In the next version, my primary goal will be improv-
we did experiments overnight during the winter. That
ing the stableness and performance of LTESniffer. I
is a memorable experience for me.
will also pay attention to fixing the bugs reported by
users last time.

Q LTEsniffer has already received over 900 In addition, the 5G network is implementing rapidly,
which demands a 5G Sniffer to facilitate 5G security
stars on GitHub in just three months. How
research. Therefore, I’m considering developing a
do you feel about this rapid and wide-
5G Sniffer to support the security of the 5G network.
spread recognition of your work, and to I am hopeful that my work on LTEsniffer and the po-
what do you attribute its popularity? tential development of a 5G Sniffer will contribute
significantly to enhancing the security of cellular
A : To be honest, I have never thought LTESniffer can networks, fostering a safer and more robust com-
attract a lot of attention like that. After publishing
munication environment for users worldwide.

그림 2 ▶ Real world testbed of LTESniffer

08 Graduate School Of Information Security 09