30 citations · 126 across the 73 of their papers we have counts for
9 papers · 1 filter
Bent Functions in the Partial Spread Class Generated by Linear Recurring Sequences
Maximilien Gadouleau, Luca Mariot, Stjepan Picek
We present a construction of partial spread bent functions using subspaces generated by linear recurring sequences (LRS). We first show that the kernels of the linear mappings defi…
On the Security & Privacy in Federated Learning
Gorka Abad, Stjepan Picek, Víctor Julio Ramírez-Durán +1
Recent privacy awareness initiatives such as the EU General Data Protection Regulation subdued Machine Learning (ML) to privacy and security assessments. Federated Learning (FL) gr…
Hand Me Your PIN! Inferring ATM PINs of Users Typing with a Covered Hand
Matteo Cardaioli, Stefano Cecconello, Mauro Conti +3
Automated Teller Machines (ATMs) represent the most used system for withdrawing cash. The European Central Bank reported more than 11 billion cash withdrawals and loading/unloading…
On the Difficulty of Evolving Permutation Codes
Luca Mariot, Stjepan Picek, Domagoj Jakobovic +2
Combinatorial designs provide an interesting source of optimization problems. Among them, permutation codes are particularly interesting given their applications in powerline commu…
Watermarking Graph Neural Networks based on Backdoor Attacks
Jing Xu, Stefanos Koffas, Oguzhan Ersoy +1
Graph Neural Networks (GNNs) have achieved promising performance in various real-world applications. Building a powerful GNN model is not a trivial task, as it requires a large amo…
Can You Hear It? Backdoor Attacks via Ultrasonic Triggers
Stefanos Koffas, Jing Xu, Mauro Conti +1
This work explores backdoor attacks for automatic speech recognition systems where we inject inaudible triggers. By doing so, we make the backdoor attack challenging to detect for…