Shipped: Quantum Control-Plane Timing Attacks — Quantum Cybersecurity
An open-source quantum cybersecurity research proof of concept investigating how timing differences in classical quantum-control electronics can reveal sensitive information about quantum operations.
The project examines timing side-channel vulnerabilities in STM32-class control firmware and explores how variations in classical execution paths may expose information about quantum circuit behavior. It combines embedded-system timing analysis with quantum circuit simulations using Cirq, IBM Qiskit, and PennyLane.
The experimental framework also investigates constant-time execution and timing padding as potential countermeasures against information leakage.
The research highlights an often-overlooked security boundary in quantum computing: even when quantum operations are protected, the classical electronics coordinating those operations may introduce vulnerabilities.
Designed for quantum computing researchers, cybersecurity professionals, and developers exploring secure quantum infrastructure. This is an experimental research demonstration rather than a validated attack against commercial quantum hardware.






Comments2
The idea that the ordinary chips running a quantum computer can give away what it's doing, even when the quantum side itself is locked down, is the kind of blind spot security teams usually miss until someone points right at it. Testing fixes in the same project, like making every step take the same amount of time, gives the researchers and security people you built this for something they can act on instead of only a warning.
Thanks, Ryan! That's exactly the security concern this research aims to highlight. We often focus on securing the quantum processor itself, but the classical control electronics can introduce vulnerabilities through something as simple as execution timing. What makes this particularly interesting is that established cybersecurity concepts, such as side-channel analysis and constant-time execution, also apply to emerging quantum infrastructure. By exploring timing padding and constant-time countermeasures, the goal is not just to identify potential information leakage but also to investigate practical ways to mitigate it. Of course, these are experimental findings rather than demonstrated vulnerabilities in commercial quantum hardware. Appreciate your perspective!
2 comments
The idea that the ordinary chips running a quantum computer can give away what it's doing, even when the quantum side itself is locked down, is the kind of blind spot security teams usually miss until someone points right at it. Testing fixes in the same project, like making every step take the same amount of time, gives the researchers and security people you built this for something they can act on instead of only a warning.
Thanks, Ryan! That's exactly the security concern this research aims to highlight. We often focus on securing the quantum processor itself, but the classical control electronics can introduce vulnerabilities through something as simple as execution timing. What makes this particularly interesting is that established cybersecurity concepts, such as side-channel analysis and constant-time execution, also apply to emerging quantum infrastructure. By exploring timing padding and constant-time countermeasures, the goal is not just to identify potential information leakage but also to investigate practical ways to mitigate it. Of course, these are experimental findings rather than demonstrated vulnerabilities in commercial quantum hardware. Appreciate your perspective!