Zobrazeno 1 - 10
of 94
pro vyhledávání: '"A, Bozzio"'
Due to its fundamental principles, quantum theory holds the promise to enhance the security of modern cryptography, from message encryption to anonymous communication, digital signatures, online banking, leader election, one-time passwords and delega
Externí odkaz:
http://arxiv.org/abs/2411.08877
Semiconductor quantum dots are a versatile source of single photons with tunable properties to be used in quantum-cryptographic applications. A crucial figure of merit of the emitted photons is photon number coherence (PNC), which impacts the securit
Externí odkaz:
http://arxiv.org/abs/2409.08643
Autor:
Schiansky, Peter, Kalb, Julia, Sztatecsny, Esther, Roehsner, Marie-Christine, Guggemos, Tobias, Trenti, Alessandro, Bozzio, Mathieu, Walther, Philip
Publikováno v:
Nature Communications 14, 3849 (2023)
Digital payments have replaced physical banknotes in many aspects of our daily lives. Similarly to banknotes, they should be easy to use, unique, tamper-resistant and untraceable, but additionally withstand digital attackers and data breaches. Curren
Externí odkaz:
http://arxiv.org/abs/2305.14504
Autor:
Vyvlecka, Michal, Jehle, Lennart, Nawrath, Cornelius, Giorgino, Francesco, Bozzio, Mathieu, Sittig, Robert, Jetter, Michael, Portalupi, Simone L., Michler, Peter, Walther, Philip
Publikováno v:
Applied Physics Letters 123, 174001 (2023)
Building a quantum internet requires efficient and reliable quantum hardware, from photonic sources to quantum repeaters and detectors, ideally operating at telecommunication wavelengths. Thanks to their high brightness and single-photon purity, quan
Externí odkaz:
http://arxiv.org/abs/2305.13273
Autor:
Neves, Simon, Yacoub, Verena, Chabaud, Ulysse, Bozzio, Mathieu, Kerenidis, Iordanis, Diamanti, Eleni
Publikováno v:
Nature Communications 14, 1855 (2023)
As in modern communication networks, the security of quantum networks will rely on complex cryptographic tasks that are based on a handful of fundamental primitives. Weak coin flipping (WCF) is a significant such primitive which allows two mistrustfu
Externí odkaz:
http://arxiv.org/abs/2211.03472
Autor:
Bozzio, Mathieu, Vyvlecka, Michal, Cosacchi, Michael, Nawrath, Cornelius, Seidelmann, Tim, Loredo, Juan Carlos, Portalupi, Simone Luca, Axt, Vollrath Martin, Michler, Peter, Walther, Philip
Publikováno v:
npj Quantum Information 8, 104 (2022)
Quantum cryptography harnesses quantum light, in particular single photons, to provide security guarantees that cannot be reached by classical means. For each cryptographic task, the security feature of interest is directly related to the photons' no
Externí odkaz:
http://arxiv.org/abs/2204.11734
Publikováno v:
PRX Quantum 2, 030338 (2021)
Mistrustful cryptography includes important tasks like bit commitment, oblivious transfer, coin flipping, secure computations, position authentication, digital signatures and secure unforgeable tokens. Practical quantum implementations presently use
Externí odkaz:
http://arxiv.org/abs/2103.06970
Publikováno v:
Phys. Rev. A 102, 022414 (2020)
Weak coin flipping is among the fundamental cryptographic primitives which ensure the security of modern communication networks. It allows two mistrustful parties to remotely agree on a random bit when they favor opposite outcomes. Unlike other two-p
Externí odkaz:
http://arxiv.org/abs/2002.09005
Autor:
Peter Schiansky, Julia Kalb, Esther Sztatecsny, Marie-Christine Roehsner, Tobias Guggemos, Alessandro Trenti, Mathieu Bozzio, Philip Walther
Publikováno v:
Nature Communications, Vol 14, Iss 1, Pp 1-7 (2023)
Abstract Digital payments have replaced physical banknotes in many aspects of our daily lives. Similarly to banknotes, they should be easy to use, unique, tamper-resistant and untraceable, but additionally withstand digital attackers and data breache
Externí odkaz:
https://doaj.org/article/534d02237ce247239b59d7ee3c63541d
Autor:
Simon Neves, Verena Yacoub, Ulysse Chabaud, Mathieu Bozzio, Iordanis Kerenidis, Eleni Diamanti
Publikováno v:
Nature Communications, Vol 14, Iss 1, Pp 1-8 (2023)
Quantum-enhanced versions of weak coin flipping (a cryptographic primitive where two mistrustful parties agree on a random bit while favouring opposite outcomes) have been proposed in the past but never realised. Here, the authors fill this gap by im
Externí odkaz:
https://doaj.org/article/f9be23a74f504fc4bde290b834ae13e0