Testing the Security of Quantum Key Distribution
نویسندگان
چکیده
Bell nonlocality is insufficient to ensure the security of a type secure quantum-communications protocol known as DI-QKD.
منابع مشابه
Security of Quantum Key Distribution
We construct a new quantum key distribution scheme and prove its security against the most general type of attacks and the most general type of noises allowed by quantum physics. The novel technique we use is reduction from a quantum scheme to a classical scheme. We first show that, rather surprisingly, the proof of security of our quantum key distribution in the error-free case can be reduced ...
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Valerio Scarani , Helle Bechmann-Pasquinucci , Nicolas J. Cerf , Miloslav Dušek , Norbert Lütkenhaus , Momtchil Peev 9 1 Centre for Quantum Technologies and Department of Physics, National University of Singapore, Singapore 2 Group of Applied Physics, University of Geneva, Geneva, Switzerland 3 University of Pavia, Dipartimento di Fisica “A. Volta”, Pavia, Italy 4 UCCI.IT, Rovagnate (LC), Italy...
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Is the newly born quantum cryptography the ultimate solution for information security? A technique needs to be both theoretically strong and practically viable. But quantum cryptography comes to naught in the latter. Unlike many of the classical cryptosystems in use today, whose security often draws on unproven assumptions about the computational complexity of mathematical problems, the securit...
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This work is intended as an introduction to cryptographic security and a motivation for the widely used Quantum Key Distribution (QKD) security definition. We review the notion of security necessary for a protocol to be usable in a larger cryptographic context, i.e., for it to remain secure when composed with other secure protocols. We then derive the corresponding security criterion for QKD. W...
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ژورنال
عنوان ژورنال: Physics
سال: 2021
ISSN: ['2624-8174']
DOI: https://doi.org/10.1103/physics.14.s94