Announcement_3

Our paper Quantum Oracle Distribution Switching and its Applications to Fully Anonymous Ring Signatures has been accepted for a talk at QCrypt 2026 in Ottawa. We take a closer look at how quantum oracle indistinguishability behaves when the closeness of two distributions is measured using the Rényi divergence instead of statistical distance, and apply our results to give QROM proofs for various ring signature constructions — crucial for post-quantum Signal-conform key exchange.