145 citations · 161 across the 4 of their papers we have counts for
4 papers · 1 filter
Cryptography from Noisy Storage
Stephanie Wehner, Christian Schaffner, Barbara Terhal
We show how to implement cryptographic primitives based on the realistic assumption that quantum storage of qubits is noisy. We thereby consider individual-storage attacks, i.e. th…
Randomness Extraction via Delta-Biased Masking in the Presence of a Quantum Attacker
Serge Fehr, Christian Schaffner
Randomness extraction is of fundamental importance for information-theoretic cryptography. It allows to transform a raw key about which an attacker has some limited knowledge into…
A Tight High-Order Entropic Quantum Uncertainty Relation With Applications
Ivan B. Damgaard, Serge Fehr, Renato Renner +2
We derive a new entropic quantum uncertainty relation involving min-entropy. The relation is tight and can be applied in various quantum-cryptographic settings. Protocols for quant…
Cryptography In the Bounded Quantum-Storage Model
Ivan Damgaard, Serge Fehr, Louis Salvail +1
We initiate the study of two-party cryptographic primitives with unconditional security, assuming that the adversary's quantum memory is of bounded size. We show that oblivious tra…