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Two-Dimensional Quantum Key Distribution (QKD) Protocol for Increased Key Rate Fiber-Based Quantum Communications

B. Da Lio, D. Bacco, Y. Ding, D. Cozzolino, K. Dalgaard, K. Rottwitt, L. K. Oxenlowe
2017 2017 European Conference on Optical Communication (ECOC)  
We experimentally prove a novel two-dimensional QKD scheme, relying on differential phasetime shifting (DPTS) of strongly attenuated weak coherent pulses.  ...  We demonstrate QKD transmission up to 170 km standard fiber, and even include a classical channel up to 90 km.  ...  Increasing the modulation dimensionality for QKD systems allows for increased secure key rates and potentially longer transmission distances.  ... 
doi:10.1109/ecoc.2017.8346242 fatcat:odhupisurbhabev7uxrovgemnm

Two-dimensional distributed-phase-reference protocol for quantum key distribution [article]

Davide Bacco, Jesper Bjerge Christensen, Mario A. Usuga Castaneda, Yunhong Ding, Søren Forchhammer, Karsten Rottwitt, Leif Katsuo Oxenløwe
2016 arXiv   pre-print
Quantum key distribution (QKD) and quantum communication enable the secure exchange of information between remote parties.  ...  Currently, the distributed-phase-reference (DPR) protocols, which are based on weak coherent pulses, are among the most practical solutions for long-range QKD.  ...  Our work was supported by the DNRF Research Centre of Excellence, SPOC (Silicon Photonics for Optical Communications), ref. DNRF123.  ... 
arXiv:1606.08375v1 fatcat:josgcun72bhlbgkkalxqdes54i

Two-dimensional distributed-phase-reference protocol for quantum key distribution

Davide Bacco, Jesper Bjerge Christensen, Mario A. Usuga Castaneda, Yunhong Ding, Søren Forchhammer, Karsten Rottwitt, Leif Katsuo Oxenløwe
2016 Scientific Reports  
Quantum key distribution (QKD) and quantum communication enable the secure exchange of information between remote parties.  ...  Currently, the distributed-phase-reference (DPR) protocols, which are based on weak coherent pulses, are among the most practical solutions for long-range QKD.  ...  Marangon of Department of Information Engineering (DEI), University of Padova for the useful discussions and for the insightful comments.  ... 
doi:10.1038/srep36756 pmid:28004821 pmcid:PMC5177871 fatcat:rqtjstkg7ngoxhpt4b2ls37lo4

Security of a High Dimensional Two-Way Quantum Key Distribution Protocol [article]

Walter O. Krawec
2022 arXiv   pre-print
Two-way quantum key distribution protocols utilize bi-directional quantum communication to establish a shared secret key. Due to the increased attack surface, security analyses remain challenging.  ...  Along the way, we show some fascinating benefits to high-dimensional quantum states applied to two-way quantum communication.  ...  Introduction Quantum Key Distribution (QKD) allows two parties to establish a shared secret key, secure against computationally unbounded adversaries.  ... 
arXiv:2203.02989v1 fatcat:o6rk7245yjgmlof73wtwducbxm

Quantum-Key-Distribution (QKD) Networks Enabled by Software-Defined Networks (SDN)

Hua Wang, Yongli Zhao, Avishek Nag
2019 Applied Sciences  
As an important support for quantum communication, quantum key distribution (QKD) networks have achieved a relatively mature level of development, and they face higher requirements for multi-user end-to-end  ...  As a promising technology, software defined networking (SDN) can separate the control and management of QKD networks from the actual forwarding of the quantum keys.  ...  In addition, the interaction of classical information is also required during the above processes according to QKD protocols such as BB84 protocol [32] and two-dimensional distributed phase-reference  ... 
doi:10.3390/app9102081 fatcat:iaxgrmny3bf3dhxjpijujjhmny

FBG-Based Weak Coherent State and Entanglement-Assisted Multidimensional QKD

Ivan B. Djordjevic
2018 IEEE Photonics Journal  
The proposed FBG-based protocols are capable of simultaneously achieving unprecedented spectral efficiency and secret-key rates in long-distance quantum communication.  ...  It has been shown that the proposed MQKD protocols significantly outperform the conventional two-dimensional QKD protocols, and impose less stringent bandwidth requirements compared to multidimensional  ...  Introduction The quantum information processing has been intensively studied for various applications including quantum computation, quantum sensing, quantum communication, quantum key distribution (QKD  ... 
doi:10.1109/jphot.2018.2860524 fatcat:fxz2oamvfbe2pooglbnwn53blm

Proposal for Slepian-States-based DV- and CV-QKD Schemes Suitable for Implementation in Integrated Photonics Platforms

Ivan B. Djordjevic
2019 IEEE Photonics Journal  
QKD leverages underlying principles of quantum mechanics to realize distribution of keys with verifiable security.  ...  Firstly, QKD secret-key rate (SKR) is fundamentally limited by channel loss, as dictated by the rate-loss tradeoff.  ...  Introduction The first quantum key distribution (QKD) scheme was introduced by Bennett and Brassard, who proposed it in 1984 [1] , [2] , and it is now known as the BB84 protocol.  ... 
doi:10.1109/jphot.2019.2923749 fatcat:muclopo66jb6fivul6m2bt4de4

Everlasting Secure Key Agreement with performance beyond QKD in a Quantum Computational Hybrid security model [article]

Nilesh Vyas, Romain Alleaume
2020 arXiv   pre-print
We propose an explicit d-dimensional key distribution protocol, that we call MUB-Quantum Computational Timelock (MUB-QCT) where one bit is encoded on a qudit state chosen among d+1 mutually unbiased bases  ...  untrusted; significant performance increase, characterized by a O(√(d)) multiplication of key rates and an extension by 25 km ×log(d) of the attainable distance over fiber.  ...  I Overview of different quantum-based key distribution protocols in high dimension.  ... 
arXiv:2004.10173v1 fatcat:y3imcbrsr5e4pn3yqv25e6v7hm

Strategies for achieving high key rates in satellite-based QKD [article]

Sebastian Ecker, Bo Liu, Johannes Handsteiner, Matthias Fink, Dominik Rauch, Fabian Steinlechner, Thomas Scheidl, Anton Zeilinger, Rupert Ursin
2020 arXiv   pre-print
Quantum key distribution (QKD) is a pioneering quantum technology on the brink of widespread deployment.  ...  Optimizing these non-static quantum links to yield the highest possible key rate is essential for their successful operation.  ...  Quantum key distribution (QKD) is a pioneering quantum technology on the brink of widespread deployment.  ... 
arXiv:1910.07889v2 fatcat:sqrwlgelireuzkc5htmtu6fere

Integrated Optics Modules Based Proposal for Quantum Information Processing, Teleportation, QKD, and Quantum Error Correction Employing Photon Angular Momentum

Ivan B. Djordjevic
2016 IEEE Photonics Journal  
Index Terms: Quantum information processing, quantum qudit gates, quantum key distribution (QKD), orbital angular momentum (OAM), spin angular momentum (SAM), quantum error correction.  ...  Unfortunately, data rates for quantum key exchange in two-dimensional QKD are still low, while the transmission distance is also limited by the available power budget.  ...  key distribution (QKD) system is secure.  ... 
doi:10.1109/jphot.2016.2522097 fatcat:dai5grmzwbdpvolsxl54jlgcwu

Variations of QKD Protocols Based on Conventional System Measurements: A Literature Review

Abdulbast A. Abushgra
2022 Cryptography  
Quantum key distribution (QKD), a technique for creating a secret key, is one of the most interesting areas in quantum cryptography.  ...  An accurate quantitative comparison between the QKD protocols is presented, especially the runtime execution for each QKD protocol.  ...  The QKD Protocols Features Based on Quantum Computing As stated in the previous schemes, each quantum key distribution protocol is addressed in two critical aspects.  ... 
doi:10.3390/cryptography6010012 fatcat:flz7syzdbjdttnfju44xplotqy

How to choose the best QKD network technology: three different satellite based scenarios compared

Manuel Erhard, Armin Hochrainer, Matthias Fink, Johannes Handsteiner, Thomas Herbst, Thomas Scheidl, Zoran Sodnik, Bruno Cugny, Nikos Karafolas
2021 International Conference on Space Optics — ICSO 2020  
Quantum cryptography promises unconditionally secure communication. Today, there exists a vast array of different QKD protocols that claim to offer security.  ...  We present three different QKD use-cases with different network topologies: one trusted-node-based scenario (BB84 decoy) and two trusted-node-free (entanglement-based BBM92 and twin-field QKD).  ...  INTRODUCTION Quantum key distribution (QKD) is a crucial technology for many countries and institutions, as it promises information-theoretically secure communication.  ... 
doi:10.1117/12.2599218 fatcat:oprqvzpdsbardohnt6optsuaaq

QKD in Cloud-Fog Computing for Personal Health Record

L. Arulmozhiselvan, E. Uma
2022 Computer systems science and engineering  
We use quantum key distribution to produce and distribute key which change its quantum state and key, when key is known by mediator and it has ability to detect presence of mediator trying to gain lore  ...  of the key.  ...  Acknowledgement: We show gratitude to anonymous referees for their useful ideas. Funding Statement : The authors received no specific funding for this study.  ... 
doi:10.32604/csse.2022.022024 fatcat:iitb3iobfjej5pfkf6ueonzugu

Composable finite-size effects in free-space CV-QKD systems [article]

Nedasadat Hosseinidehaj, Nathan Walk, Timothy C. Ralph
2020 arXiv   pre-print
Free-space channels provide the possibility of establishing continuous-variable quantum key distribution (CV-QKD) in global communication networks.  ...  However, the fluctuating nature of transmissivity in these channels introduces an extra noise which reduces the achievable secret key rate.  ...  INTRODUCTION Quantum key distribution (QKD) [1] [2] [3] allows two trusted parties (traditionally called Alice and Bob) to share a secret key which is unknown to a potential eavesdropper (traditionally  ... 
arXiv:2002.03476v1 fatcat:gpor4zclovhmtklbjgmaxvbrcm

Multi-Dimensional Routing, Wavelength, and Timeslot Allocation (RWTA) in Quantum Key Distribution Optical Networks (QKD-ON)

Xiaosong Yu, Xian Ning, Qingcheng Zhu, Jiaqi Lv, Yongli Zhao, Huibin Zhang, Jie Zhang
2020 Applied Sciences  
Quantum key distribution (QKD) provides information-theoretic security based on the laws of quantum mechanics.  ...  two nodes can directly establish a quantum channel, and the maximum distance between any two nodes is less than the distance that can carry out point-to-point quantum key distribution process.  ...  Introduction Quantum key distribution (QKD) is an advanced cryptographic technology which can provide unconditionally secure shared keys for separated users based on the basic laws of quantum mechanics  ... 
doi:10.3390/app11010348 fatcat:gvuco3t7ozbb7oip7psny5omea
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