4 papers
Two-Party Quantum Protocols Do Not Compose Securely Against Honest-But-Curious Adversaries
Louis Salvail, Miroslava Sotakova
In this paper, we build upon the model of two-party quantum computation introduced by Salvail et al. [SSS09] and show that in this model, only trivial correct two-party quantum pro…
Security of Trusted Repeater Quantum Key Distribution Networks
Louis Salvail, Momtchil Peev, Eleni Diamanti +3
A Quantum Key Distribution (QKD) network is an infrastructure capable of performing long-distance and high-rate secret key agreement with information-theoretic security. In this pa…
Improving the Security of Quantum Protocols via Commit-and-Open
Ivan Damgaard, Serge Fehr, Carolin Lunemann +2
We consider two-party quantum protocols starting with a transmission of some random BB84 qubits followed by classical messages. We show a general "compiler" improving the security…
Secure Identification and QKD in the Bounded-Quantum-Storage Model
Ivan Damgaard, Serge Fehr, Louis Salvail +1
We consider the problem of secure identification: user U proves to server S that he knows an agreed (possibly low-entropy) password w, while giving away as little information on w…