High-Rate, High-Dimensional Quantum Key Distribution Systems

2018 ◽  
Author(s):  
Nurul T. Islam
Keyword(s):  
Quantum Key Distribution ◽  
Distribution Systems ◽  
Key Distribution ◽  
High Rate ◽  
High Dimensional

scholarly journals Scalable high-rate, high-dimensional time-bin encoding quantum key distribution

2019 ◽  
Vol 4 (3) ◽  
pp. 035008 ◽  
Author(s):  
Nurul T Islam ◽  
Charles Ci Wen Lim ◽  
Clinton Cahall ◽  
Bing Qi ◽  
Jungsang Kim ◽  
...  
Keyword(s):  
Quantum Key Distribution ◽  
Key Distribution ◽  
High Rate ◽  
High Dimensional

scholarly journals Security proof for quantum key recycling with noise

2019 ◽  
Vol 19 (11&12) ◽  
pp. 913-934
Author(s):  
Daan Leermakers ◽  
Boris Skoric
Keyword(s):  
Quantum Key Distribution ◽  
Key Distribution ◽  
High Rate ◽  
High Dimensional ◽  
Not Given ◽  
Trace Distance ◽  
Security Proof ◽  
Quantum Authentication ◽  
Authentication Schemes ◽  
State Encoding

Quantum Key Recycling aims to re-use the keys employed in quantum encryption and quantum authentication schemes. QKR protocols can achieve better round complexity than Quantum Key Distribution. We consider a QKR protocol that works with qubits, as opposed to high-dimensional qudits. A security proof was given by Fehr and Salvail in the case where there is practically no noise. A high-rate scheme for the noisy case was proposed by \v{S}kori\'{c} and de Vries, based on eight-state encoding. However, a security proof was not given. In this paper we introduce a protocol modification and provide a security proof. The modified protocol has high rate not only for 8-state encoding, but also 6-state and BB84 encoding. Our proof is based on a bound on the trace distance between the real quantum state of the system and a state in which the keys are completely secure. It turns out that the rate is higher than suggested by previous results. Asymptotically the rate equals the rate of Quantum Key Distribution with one-way postprocessing.

scholarly journals Synchronization in Quantum Key Distribution Systems

Cryptography ◽  
2017 ◽  
Vol 1 (3) ◽  
pp. 18 ◽  
Author(s):  
Anton Pljonkin ◽  
Konstantin Rumyantsev ◽  
Pradeep Singh
Keyword(s):  
Quantum Key Distribution ◽  
Distribution Systems ◽  
Key Distribution

scholarly journals Detector-decoy high-dimensional quantum key distribution

2016 ◽  
Vol 24 (19) ◽  
pp. 22159 ◽  
Author(s):  
Haize Bao ◽  
Wansu Bao ◽  
Yang Wang ◽  
Ruike Chen ◽  
Chun Zhou ◽  
...  
Keyword(s):  
Quantum Key Distribution ◽  
Key Distribution ◽  
High Dimensional

Modeling of Quantum Key Distribution System for Secure Information Transfer

2014 ◽  
pp. 811-840
Author(s):  
K. E. Rumyantsev ◽  
D. M. Golubchikov
Keyword(s):  
Distribution System ◽  
Quantum Key Distribution ◽  
Information Transfer ◽  
Distribution Systems ◽  
Key Distribution ◽  
Photon State ◽  
Secure Information ◽  
Sequence Production ◽  
Security Infrastructure ◽  
Processing Algorithms

This chapter is an analysis of commercial quantum key distribution systems. Upon analysis, the generalized structure of QKDS with phase coding of a photon state is presented. The structure includes modules that immediately participate in the task of distribution and processing of quantum states. Phases of key sequence productions are studied. Expressions that allow the estimation of physical characteristics of optoelectronic components, as well as information processing algorithms impact to rate of key sequence production, are formed. Information security infrastructure can be utilized, for instance, to formulate requirements to maximize tolerable error level in quantum channel with a given rate of key sequence production.

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