9 papers
Abstractions for Network Intelligence: A Reference Architecture for AI at the Wireless Edge
Salil Reddy, Haohuang Wen, Ness Shroff +5
Networks are increasingly adopting AI as are AI applications leveraging networks. Awareness sharing between networks and AI applications promises to unlock higher levels of network…
Securing Agentic AI: From Per-Action Checks to Trajectory Assurance
Alireza Lotfi, Subangkar Karmaker Shanto, Imtiaz Karim +1
Autonomous agents are increasingly used to execute consequential tasks in environments governed by operational constraints, organizational policies, regulatory requirements, and te…
Zero-Trust Strategies for O-RAN Cellular Networks: Principles, Challenges and Research Directions
Charalampos Katsis, Imtiaz Karim, Elisa Bertino
Cellular networks are foundational to modern communication, supporting a broad range of applications, from civilian use to enterprise systems and military tactical networks. The ad…
Breaking 5G on The Lower Layer
Subangkar Karmaker Shanto, Imtiaz Karim, Elisa Bertino
As 3GPP systems have strengthened security at the upper layers of the cellular stack, plaintext PHY and MAC layers have remained relatively understudied, though interest in them is…
Proving DNSSEC Correctness: A Formal Approach to Secure Domain Name Resolution
Qifan Zhang, Zilin Shen, Imtiaz Karim +2
The Domain Name System Security Extensions (DNSSEC) are critical for preventing DNS spoofing, yet its specifications contain ambiguities and vulnerabilities that elude traditional…
TIMESAFE: Timing Interruption Monitoring and Security Assessment for Fronthaul Environments
Joshua Groen, Simone Di Valerio, Imtiaz Karim +9
5G and beyond cellular systems embrace the disaggregation of Radio Access Network (RAN) components, exemplified by the evolution of the fronthaul (FH) connection between cellular b…