Stefano Zacchiroli

The Debsources Dataset: Two Decades of Debian Source Code Metadata

2015

We present the Debsources Dataset: distribution metadata and source code metrics spanning two decades of Free and Open Source Software (FOSS) history, seen through the lens of the Debian distribution. Debsources is a software platform …

Is This You, LLM? Recognizing AI-written Programs with Multilingual Code Stylometry

2025

With the increasing popularity of LLM-based code completers, like GitHub Copilot, the interest in automatically detecting AI-generated code is also increasing-in particular in contexts where the use of LLMs to program is forbidden by policy …

ROSA: Finding Backdoors with Fuzzing

2025

A code-level backdoor is a hidden access, programmed and concealed within the code of a program. For instance, hard-coded credentials planted in the code of a file server application would enable maliciously logging into all …