Trustworthy Systems

Trustworthy Systems

Welcome to Trustworthy Systems!

(Most of) Trustworthy Systems in February 2025.

We are the Trustworthy Systems Group

We research techniques for the design, implementation and verification of secure and performant real-world computer systems.

We achieve impact by fundamentally changing how software systems are engineered in the real world. Our techniques provide the highest possible degree of assurance—the certainty of mathematical proof—while being cost-competitive with traditional low- to medium-assurance systems.

Our research brings together a unique combination of expertise in operating systems, formal methods and programming languages. Our seL4 microkernel is the most thoroughly verified operating system kernel in the world.

Our work goes beyond research. We show how to build robust, high-performance software stacks for the software development community, and also engage with other organisations to apply our technology to real problems.

Our main activities

Research

Breakthroughs that combine our expertise in operating systems, formal methods and programming languages.

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Engagement

We apply our unique research and engineering experience to solve problems in the real world.

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Additional resources

seL4

The world's most highly-assured operating system kernel.

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Software

Our software and proof repositories, as well as packaged software releases.

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For students

Info for prospective students and interns, and courses we teach.

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Publications

Our research publications and tech reports.

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Latest news

2025-04-01 – Gernot Heiser gave a joint keynote on 1 April at the co-located top-tier ASPLOS + EuroSys conferences in Rotterdam, Netherlands. The talk was titled "Will we ever have truly secure operating systems?” Gernot Heiser from UNSW Sydney delivered another compelling keynote t...

2025-03-25 – The systems team has made a series of releases for our major systems projects. LionsOS 0.3.0 , adding more file system support and new developer tooling. seL4 Device Driver Framework 0.6.0 , adding a 2D graphics device class and our first native SD card driver. Microkit 2.0.0 ,...

2025-01-20 – German Cyberagentur today launched their ÖvIT (Ecosystem for trustworthy IT) program. One of the five projects funded under ÖvIT is PISTIs-V , for which TS partners with German SME PlanV and the University of Gothenburg. PISTIs-V builds on LionsOS , the highly modular, seL4-based OS which TS is ...