Nicolas Dutly

I’m Nicolas, a third-year PhD student at the System Security Group at ETH Zurich. My current research interests mainly revolve around offensive and defensive work in the area of confidential computing (CC) and hardware security, with the goal of improving security guarantees of trusted execution environments, as well as exploring practical confidential computing usecases.

Research Area

Trusted Computing

Teaching

Computer Science II (BAUG): 2026 FS (TA)
System Security: 2024-Ongoing (TA)
Stochastics and Machine Learning (SML): 2025 FS (TA)
Probabilistic Artificial Intelligence (PAI): 2024 HS (TA)
Introduction to Machine Learning (IML): 2024 FS (TA)

Publications

Bringing Confidential Computing to Android

Mark Kuhne, Supraja Sridhara, Andrin Bertschi, Nicolas Dutly, Fabio Aliberti, Srdjan Čapkun, and Shweta Shinde

24th ACM International Conference on Mobile Systems, Applications, and Services (MobiSys 2026) (MobiSys)

AEX-NStep: Probabilistic Interrupt Counting Attacks on Intel SGX

PDF Code

Nicolas Dutly, Friederike Groschupp, Ivan Puddu, Kari Kostiainen, and Srdjan Čapkun

47th IEEE Symposium on Security and Privacy (S&P '26)

Gyokuro: Source-assisted Private Membership Testing using Trusted Execution Environments

PDF Code

Yoshimichi Nakatsuka, Nicolas Dutly, Kari Kostiainen, and Srdjan Čapkun

arXiv

Breaking Bad: How Compilers Break Constant-Time Implementations

PDF Code

Moritz Schneider, Daniele Lain, Ivan Puddu, Nicolas Dutly, and Srdjan Čapkun

ACM Asia Conference on Computer and Communications Security (AsiaCCS'25)

Best Paper Award

Devlore: Extending Arm CCA to Integrated Devices A Journey Beyond Memory to Interrupt Isolation

PDF

Andrin Bertschi, Supraja Sridhara, Friederike Groschupp, Mark Kuhne, Benedict Schlüter, Clément Thorens, Nicolas Dutly, Srdjan Čapkun, and Shweta Shinde

arXiv

Aster: Fixing the Android TEE Ecosystem with Arm CCA

PDF

Mark Kuhne, Supraja Sridhara, Andrin Bertschi, Nicolas Dutly, Srdjan Čapkun, and Shweta Shinde

arXiv

Supervised Theses

Rate-Limited Intel SGX ECALLS (Semester Project)
Student: Cédric Déteindre
Supervisor: Nicolas Dutly

Rate-Limited Trusted Execution Environments (Bachelor Thesis)
Student: Moritz Mantel
Supervisor: Nicolas Dutly

Hardening AEX-Notify with Adjusted Mitigation Delay (Research Project)
Student: Petar Vitorac
Supervisors: Nicolas Dutly and Friederike Groschupp

More accurate TCB Measurements (MA)
Student: Edward Ettesvoll
Supervisors: Moritz Schneider and Nicolas Dutly

Performance Counters and their Practical Security Implications on the Confidentiality of Intel SGX Workloads (BA)
Student: Cédric Déteindre
Supervisor: Nicolas Dutly

Arm CCA-based Normal-World Enclaves with Device Isolation (SA)
Student: Edouard Michelin
Supervisors: Friederike Groschupp and Nicolas Dutly