Recent Publications

(2021). The Android Platform Security Model. ACM Transactions on Privacy and Security (TOPS).

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(2020). Adversary Models for Mobile Device Authentication. arXiv:2009.10150 [cs].

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(2020). Dynamic Taint Tracking Simulation. Proc. ICETE 2019: E-Business and Telecommunications.

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(2019). CORMORANT: Ubiquitous Risk-Aware Multi-Modal Biometric Authentication across Mobile Devices. Proc. ACM Interactive, Mobile, Wearable and Ubiquitous Technologies.

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(2019). Disposable dynamic accumulators: toward practical privacy-preserving mobile eIDs with scalable revocation. International Journal of Information Security.

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Presentations & Talks

Android defines not only an operating system / platform, but a complete ecosystem with more form factors than just smart phones. In …

In absehbarer Zeit wird es möglich werden, digitale Identitätsausweise auf Mobilgeräten wie z.B. Smartphones zu verwenden und sich mit …

Die aktuelle Situation fordert Unternehmen nicht nur in der Organisation Ihres Kerngeschäfts, sondern auch bei der Sicherheit der …

Digital identity will be key to many future services in the digital, but also in the physical “real” world. Not only well-known …

How can we use digital identity for authentication in the physical world without compromising user privacy? This central question is an …

Kurze Themenbeschreibung: In absehbarer Zeit wird es möglich werden, digitale Identitätsausweise auf Mobilgeräten wie z.B. Smartphones …

The Android ecosystem is immense, represents a diverse manifold of use cases and participants, and is therefore highly complex. At the …

The threat model for a mobile device ecosystem is complex. In addition to the obvious physical attacks on lost or stolen devices and …

Recent Posts

Getting OPNsense to perform well on a low-powered CPU, e.g. the APU4d4 board, can be tricky. As there are some open questions, this …

Android has different types of lock states. This post summarizes what they are, what their purpose is, and how the interact.

I have been using KDE since 1998 and keep coming back to it even though I have tried Gnome in many versions and varients. A highly …

Sending bills or medical diagnosis through cleartext email has obvious security problems, but forcing users to log into every service …

The Flatpak package of the Zoom Linux client is better than installing native because of Flatpak sandboxing capabilites. This short …

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