4 citations · 6 across the 7 of their papers we have counts for
8 papers
Reducing Cold-Start Latency in Serverless Applications via Dynamic Slicing
Georgios Alexopoulos, Konstantinos Karakatsanis, Nikolaos Alexopoulos +2
We present PyXtrim, a system that reduces the cold-start latency of serverless applications through debloating. We focus on Python, a dominant language for serverless applications…
WOOTdroid: Whole-system Online On-device Tracing for Android
Simon Althaus, Nikolaos Alexopoulos, Max Mühlhäuser +2
System auditing on Android faces two problems. First, existing syscall tracers lose events under load, silently overwriting entries faster than a user space reader can drain them.…
Measuring and Exploiting Contextual Bias in LLM-Assisted Security Code Review
Dimitris Mitropoulos, Nikolaos Alexopoulos, Georgios Alexopoulos +1
Automated Code Review (ACR) systems integrating Large Language Models (LLMs) are increasingly adopted in software development workflows, ranging from interactive assistants to auto…
An Empirical Comparison of Security and Privacy Characteristics of Android Messaging Apps
Ioannis Karyotakis, Foivos Timotheos Proestakis, Evangelos Talos +2
Mobile messaging apps are a fundamental communication infrastructure, used by billions of people every day to share information, including sensitive data. Security and Privacy are…
Cross-Ecosystem Vulnerability Analysis for Python Applications
Georgios Alexopoulos, Nikolaos Alexopoulos, Thodoris Sotiropoulos +3
Python packages often bundle third-party native libraries (e.g., OpenSSL), a practice known as vendoring. Identifying vulnerabilities in these libraries is challenging because curr…
TRIDEnT: Building Decentralized Incentives for Collaborative Security
Nikolaos Alexopoulos, Emmanouil Vasilomanolakis, Stephane Le Roux +2
Sophisticated mass attacks, especially when exploiting zero-day vulnerabilities, have the potential to cause destructive damage to organizations and critical infrastructure. To tim…
M-STAR: A Modular, Evidence-based Software Trustworthiness Framework
Nikolaos Alexopoulos, Sheikh Mahbub Habib, Steffen Schulz +1
Despite years of intensive research in the field of software vulnerabilities discovery, exploits are becoming ever more common. Consequently, it is more necessary than ever to choo…
Beyond the Hype: On Using Blockchains in Trust Management for Authentication
Nikolaos Alexopoulos, Jörg Daubert, Max Mühlhäuser +1
Trust Management (TM) systems for authentication are vital to the security of online interactions, which are ubiquitous in our everyday lives. Various systems, like the Web PKI (X.…