329 citations · 1.2k across the 19 of their papers we have counts for
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Measuring Obedience to Authority Across Large Language Models with the Milgram Paradigm
Hidayet Aksu
Large language models (LLMs) are increasingly deployed as agents that operate equipment, execute instructions, and act inside institutional hierarchies, raising a question social p…
Maestro Order: A Model-Agnostic Orchestration Harness
Hidayet Aksu
A single forward pass of a capable model is a fast, fluent, and unreliable problem-solver: it is right often enough to be useful and wrong often enough to be dangerous; in language…
Odds Law: The Decomposition Algebra On How Intelligence Organizes Itself to Solve Difficult Problems Reliably
Hidayet Aksu
We ask a structural question: given unreliable elementary problem-solvers, what organizations of them solve hard problems reliably, and what are the limits? We develop a $decomposi…
Summary Reports Optimization in the Privacy Sandbox Attribution Reporting API
Hidayet Aksu, Badih Ghazi, Pritish Kamath +4
The Privacy Sandbox Attribution Reporting API has been recently deployed by Google Chrome to support the basic advertising functionality of attribution reporting (aka conversion me…
A System-level Behavioral Detection Framework for Compromised CPS Devices: Smart-Grid Case
Leonardo Babun, Hidayet Aksu, A. Selcuk Uluagac
Cyber-Physical Systems (CPS) play a significant role in our critical infrastructure networks from power-distribution to utility networks. The emerging smart-grid concept is a compe…
KRATOS: Multi-User Multi-Device-Aware Access Control System for the Smart Home
Amit Kumar Sikder, Leonardo Babun, Z. Berkay Celik +5
In a smart home system, multiple users have access to multiple devices, typically through a dedicated app installed on a mobile device. Traditional access control mechanisms consid…
A Context-aware Framework for Detecting Sensor-based Threats on Smart Devices
Amit Kumar Sikder, Hidayet Aksu, A. Selcuk Uluagac
Sensors (e.g., light, gyroscope, accelerometer) and sensing-enabled applications on a smart device make the applications more user-friendly and efficient. However, the current perm…
Aegis: A Context-aware Security Framework for Smart Home Systems
Amit Kumar Sikder, Leonardo Babun, Hidayet Aksu +1
Our everyday lives are expanding fast with the introduction of new Smart Home Systems (SHSs). Today, a myriad of SHS devices and applications are widely available to users and have…
U-PoT: A Honeypot Framework for UPnP-Based IoT Devices
Muhammad A. Hakim, Hidayet Aksu, A. Selcuk Uluagac +1
The ubiquitous nature of the IoT devices has brought serious security implications to its users. A lot of consumer IoT devices have little to no security implementation at all, thu…
Identification of Wearable Devices with Bluetooth
Hidayet Aksu, A. Selcuk Uluagac, Elizabeth S. Bentley
With wearable devices such as smartwatches on the rise in the consumer electronics market, securing these wearables is vital. However, the current security mechanisms only focus on…
Peek-a-Boo: I see your smart home activities, even encrypted!
Abbas Acar, Hossein Fereidooni, Tigist Abera +6
A myriad of IoT devices such as bulbs, switches, speakers in a smart home environment allow users to easily control the physical world around them and facilitate their living style…
Detection of Compromised Smart Grid Devices with Machine Learning and Convolution Techniques
Cengiz Kaygusuz, Leonardo Babun, Hidayet Aksu +1
The smart grid concept has transformed the traditional power grid into a massive cyber-physical system that depends on advanced two-way communication infrastructure to integrate a…
WACA: Wearable-Assisted Continuous Authentication
Abbas Acar, Hidayet Aksu, A. Selcuk Uluagac +1
One-time login process in conventional authentication systems does not guarantee that the identified user is the actual user throughout the session. However, it is necessary to re-…
Sensitive Information Tracking in Commodity IoT
Z. Berkay Celik, Leonardo Babun, Amit K. Sikder +4
Broadly defined as the Internet of Things (IoT), the growth of commodity devices that integrate physical processes with digital connectivity has had profound effects on society--sm…
A Survey on Sensor-based Threats to Internet-of-Things (IoT) Devices and Applications
Amit Kumar Sikder, Giuseppe Petracca, Hidayet Aksu +2
The concept of Internet of Things (IoT) has become more popular in the modern era of technology than ever before. From small household devices to large industrial machines, the vis…
Block4Forensic: An Integrated Lightweight Blockchain Framework for Forensics Applications of Connected Vehicles
Mumin Cebe, Enes Erdin, Kemal Akkaya +2
Today's vehicles are becoming cyber-physical systems that do not only communicate with other vehicles but also gather various information from hundreds of sensors within them. Thes…
Achieving Secure and Differentially Private Computations in Multiparty Settings
Abbas Acar, Z. Berkay Celik, Hidayet Aksu +2
Sharing and working on sensitive data in distributed settings from healthcare to finance is a major challenge due to security and privacy concerns. Secure multiparty computation (S…
6thSense: A Context-aware Sensor-based Attack Detector for Smart Devices
Amit Kumar Sikder, Hidayet Aksu, A. Selcuk Uluagac
Sensors (e.g., light, gyroscope, accelerotmeter) and sensing enabled applications on a smart device make the applications more user-friendly and efficient. However, the current per…
A Survey on Homomorphic Encryption Schemes: Theory and Implementation
Abbas Acar, Hidayet Aksu, A. Selcuk Uluagac +1
Legacy encryption systems depend on sharing a key (public or private) among the peers involved in exchanging an encrypted message. However, this approach poses privacy concerns. Es…
Curie: Policy-based Secure Data Exchange
Z. Berkay Celik, Hidayet Aksu, Abbas Acar +3
Data sharing among partners---users, organizations, companies---is crucial for the advancement of data analytics in many domains. Sharing through secure computation and differentia…