104 citations · 112 across the 4 of their papers we have counts for
4 papers
Integrity from Algebraic Manipulation Detection in Trusted-Repeater QKD Networks
Ailsa Robertson, Christian Schaffner, Sebastian R. Verschoor
Quantum Key Distribution (QKD) allows secure communication without relying on computational assumptions, but can currently only be deployed over relatively short distances due to h…
QKD Oracles for Authenticated Key Exchange
Kathrin Hövelmanns, Daan Planken, Christian Schaffner +1
Authenticated Key Exchange (AKE) establishes shared ('symmetric') cryptographic keys which are essential for secure online communication. AKE protocols can be constructed from publ…
Security and Composability of Randomness Expansion from Bell Inequalities
Serge Fehr, Ran Gelles, Christian Schaffner
The nonlocal behavior of quantum mechanics can be used to generate guaranteed fresh randomness from an untrusted device that consists of two nonsignalling components; since the gen…
Cryptography in the Bounded-Quantum-Storage Model
Christian Schaffner
This thesis initiates the study of cryptographic protocols in the bounded-quantum-storage model. On the practical side, simple protocols for Rabin Oblivious Transfer, 1-2 Oblivious…