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Security in quantum cryptography
Reviews of Modern Physics, 2022 Quantum cryptography exploits principles of quantum physics for the secure processing of information. A prominent example is secure communication, i.e., the task of transmitting confidential messages from one location to another. The cryptographic requirement here is that the transmitted messages remain inaccessible to anyone other than the designated ...
Renato Renner, Christopher Portmann
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Post-Quantum and Code-Based Cryptography—Some Prospective Research Directions
Cryptography, 2021 Cryptography has been used from time immemorial for preserving the confidentiality of data/information in storage or transit. Thus, cryptography research has also been evolving from the classical Caesar cipher to the modern cryptosystems, based on ...
Chithralekha Balamurugan +3 more
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Advances in quantum cryptography [PDF]
Advances in Optics and Photonics, 2020 Quantum cryptography is arguably the fastest growing area in quantum information science. Novel theoretical protocols are designed on a regular basis, security proofs are constantly improving, and experiments are gradually moving from proof-of-principle lab demonstrations to in-field implementations and technological prototypes.
Marco Tomamichel +2 more
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Quantum Advantage in Cryptography
AIAA Journal, 2023 Ever since its inception, cryptography has been caught in a vicious circle: Cryptographers keep inventing methods to hide information, and cryptanalysts break them, prompting cryptographers to invent even more sophisticated encryption schemes, and so on. But could it be that quantum information technology breaks this circle?
Renato Renner, Ramona Wolf
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Quantum Cryptography—A Simplified Undergraduate Experiment and Simulation
Physics, 2022 Quantum cryptography is a topic of considerable interest. A simple and robust experiment and theory for a senior level undergraduate investigation of quantum key distribution are described.
Yuval Bloom +3 more
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Photonics, 2022 The ideal quantum key distribution (QKD) protocol requires perfect random numbers for bit encoding and basis selecting. Perfect randomness is of great significance to the practical QKD system. However, due to the imperfection of practical quantum devices,
Xiao-Lei Jiang +6 more
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Phase-Matching Quantum Key Distribution with Discrete Phase Randomization
Entropy, 2021 The twin-field quantum key distribution (TF-QKD) protocol and its variations have been proposed to overcome the linear Pirandola–Laurenza–Ottaviani–Banchi (PLOB) bound.
Xiaoxu Zhang +6 more
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Finite-Key Analysis of 1-Decoy Method Quantum Key Distribution with Intensity Fluctuation
Applied Sciences, 2022 The decoy state quantum key distribution (QKD) protocol is proven to be an effective strategy against the photon number splitting attack. It was shown that the 1-decoy state protocol, easier to implement in the practical QKD system, outperforms the 2 ...
Chun Zhou +7 more
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Sending or Not-Sending Twin-Field Quantum Key Distribution with Flawed and Leaky Sources
Entropy, 2021 Twin-field quantum key distribution (TF-QKD) has attracted considerable attention and developed rapidly due to its ability to surpass the fundamental rate-distance limit of QKD.
Yi-Fei Lu +9 more
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Applied Sciences, 2021 The twin-field quantum key distribution (TF-QKD) and its variants can overcome the fundamental rate-distance limit of QKD. However, their physical implementations with the side channels remain the subject of further research.
Yi-Fei Lu +9 more
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