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How Data-Driven Approach Identifies the Challenges of Interent Security

Taejoong (Tijay) Chung

Assistant Professor, Virginia Tech

Friday, September 4, 2020
11:15pm - 12:30pm
Webinar; Registration Required

Taejoong (Tijay) Chung


Public key infrastructures (PKIs) enable secure communication between different entities over an untrusted network. Due to this ability, PKIs are now central to security on the Internet: large-scale PKIs enable the security guarantees provided by protocols like HTTPS, DNSSEC, and the RPKI. Unfortunately, despite these guarantees, there have been numerous security failures involving these protocols; ultimately, most of these failures are rooted in a discordance between how these protocols are designed and how they are actually used in practice.

In this talk, I will present an overview of my recent work that applies large-scale measurement and analysis to understand how security protocols are (mis)used in practice.


Taejoong (Tijay) Chung is an Assistant Professor at the Computer Science department at Virginia Tech. His work focuses on Internet security, privacy implications, and Internet measurement. He received the IRTF Applied Networking Research Prize (2019), ACM IMC Distinguished Paper Award (2019), NSF CRII Award (2019), USENIX Security Distinguished Paper Award (2017), and Best Paper Award at IEEE Computer Society (ComSoc) Seoul Chapter (2010).