Secure certification of mixed quantum states with application to two-party randomness generation

Autor: Serge Fehr, Philippe Lamontagne, Frédéric Dupuis, Louis Salvail

Publikováno v: Theory of Cryptography ISBN: 9783030038090
TCC (2)

We investigate sampling procedures that certify that an arbitrary quantum state on $n$ subsystems is close to an ideal mixed state $\varphi^{\otimes n}$ for a given reference state $\varphi$, up to errors on a few positions. This task makes no sense

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2b86e79ad35a931528d00b860605b276
https://hal.inria.fr/hal-01926631

Adaptive Versus Non-Adaptive Strategies in the Quantum Setting with Applications

Autor: Philippe Lamontagne, Serge Fehr, Frédéric Dupuis, Louis Salvail

Publikováno v: Advances in Cryptology – CRYPTO 2016 ISBN: 9783662530146
CRYPTO (3)

We prove a general relation between adaptive and non-adaptive strategies in the quantum setting, i.e., between strategies where the adversary can or cannot adaptively base its action on some auxiliary quantum side information. Our relation holds in a

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3c46b9dde79476ad6c513c40a7530855
https://doi.org/10.1007/978-3-662-53015-3_2

Secure Identification and QKD in the Bounded-Quantum-Storage Model

Autor: Louis Salvail, Serge Fehr, Christian Schaffner, Ivan Damgård

Publikováno v: Theoretical Computer Science, 560, 12-26
Damgård, I B, Fehr, S, Salvail, L & Schaffner, C 2014, ' Secure identification and QKD in the bounded-quantum-storage model ', Theoretical Computer Science, vol. 560, no. 1, pp. 12-26 . https://doi.org/10.1016/j.tcs.2014.09.014
Theoretical Computer Science, 560(1), 12-26. Elsevier

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 as possible, namely the adversary can exclude at most one possible pas

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ca0ea518da501957dea522ee8ae95dea
https://ir.cwi.nl/pub/22730

Experimental quantum key distribution with proven security against realistic attacks

Autor: Louis Salvail, Ivan Damgård, Eugene S. Polzik, Peter Møller Nielsen, Christian Schori, Jens L. Sørensen

Publikováno v: Journal of Modern Optics. 48:1921-1942

We report on a realization of a fully automated 20km quantum key distribution system incorporating real time error correction and privacy amplification protocols carried out via the Internet. Dedicated security analysis against realistic attacks is u

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::b8ddcaf564b118edd3615bf5e68d82a1
https://doi.org/10.1080/09500340108240897

Actively Secure Two-Party Evaluation of Any Quantum Operation

Autor: Frédéric Dupuis, Jesper Buus Nielsen, Louis Salvail

Publikováno v: Lecture Notes in Computer Science ISBN: 9783642320088
CRYPTO
ResearcherID
Lecture Notes in Computer Science

We provide the first two-party protocol allowing Alice and Bob to evaluate privately even against active adversaries any completely positive, trace-preserving map $$\mathscr {F} \in \mathrm {L}\mathcal {A}_{{{\mathrm{in}}}} \otimes \mathcal {B}_{{{\m

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f4b3e234867d0e987be107e4fd5f8fd6
https://doi.org/10.1007/978-3-642-32009-5_46