4 papers
A Multi-Perspective Study of the Internet Shutdown in Iran
Ali Sadeghi Jahromi, Jason Jaskolka
Iran conducted two nationwide Internet shutdowns in 2026, on January 8-25 and March 1-May 26, the latter lasting 86 days. We characterize both using three complementary measurement…
Fine-grained CDN Delegation
Ethan Thompson, Ali Sadeghi Jahromi, AbdelRahman Abdou
The use of Content Delivery Networks (CDNs) has significantly increased over the past decade, with approximately 55 million websites currently relying on CDN services. Emerging sol…
A Survey and Evaluation Framework for Secure DNS Resolution
Ali Sadeghi Jahromi, AbdelRahman Abdou, Paul C. van Oorschot
Since security was not among the original design goals of the Domain Name System (herein called Vanilla DNS), many secure DNS schemes have been proposed to enhance the security and…
ss2DNS: A Secure DNS Scheme in Stage 2
Ali Sadeghi Jahromi, AbdelRahman Abdou, Paul C. van Oorschot
The absence of security and privacy measures between DNS recursive resolvers and authoritative nameservers has been exploited by both on-path and off-path attackers. Although numer…