Recent & Upcoming Talks

2026

End-to-End Encrypted Collaborative Documents

Aug 1, 2026 Baltimore

Christian Knabenhans

On the (Privacy) Harms of the EU Digital Identity Framework

Jul 1, 2026

Christian Knabenhans

A Privacy-Preserving Aid Distribution System with Assessment Capabilities; Or, a Case Study on Threat Modelling and System Design

Today, humanitarian distribution heavily relies on manual processes that can be slow, error-prone, and costly. Humanitarian aid …

Jul 1, 2026 Calgary

Christian Knabenhans

Coming Back from the Knowledge k-RISIS: Building Arguments from k-PRISIS

May 1, 2026

Christian Knabenhans

2025

On the Fiat-Shamir Security of Succinct Arguments from Functional Commitments

We study the security of a popular paradigm for constructing SNARGs, closing a key security gap left open by prior work. The paradigm …

Sep 1, 2025 Munich

Christian Knabenhans

2024

Lova: Lattice-Based Folding Scheme from Unstructured Lattices

Folding schemes are cryptographic tools that allow for space-efficient and incrementally updatable proofs of structured computations, …

Aug 1, 2024 COSIC Seminar, KU Leuven 🇧🇪

Christian Knabenhans

Verifiable Fully Homomorphic Encryption / Towards Robust FHE for the Real World

In recent years, FHE has made significant gains in performance and usability. As a result, we see a first wave of real-world …

Mar 27, 2024 Real World Crypto 2024 in Toronto 🇨🇦

Christian Knabenhans, Alexander Viand

2022

Integrity Protection Challenges for Real-World FHE

Poster presentation and lightning talks

Sep 1, 2022 5th Homomorphic Encryption Standards Meeting in Geneva 🇨🇭 | Intel Crypto Frontiers Research Center Workshop in Portland 🇺🇸

Christian Knabenhans