Filters








10,923 Hits in 4.6 sec

Measurement-device-independent quantum communication without encryption

Peng-Hao Niu, Zeng-Rong Zhou, Zai-Sheng Lin, Yu-Bo Sheng, Liu-Guo Yin, Gui-Lu Long
2018 Science Bulletin  
This protocol eradicates the security vulnerabilities associated with the measurement device, and greatly enhances the practical security of quantum secure direct communication.  ...  In addition to the security advantage, this protocol has an extended communication distance, and a high communication capacity.  ...  This protocol is a quantum communication process without encryption, and has a high communication capacity. We also modified the protocol and generalized it to a quantum dialogue protocol.  ... 
doi:10.1016/j.scib.2018.09.009 fatcat:t4lp4imdorfgxie37zotxnj7fm

Quantum Cryptography: Key Distribution and Beyond

Akshata Shenoy-Hejamadi, Anirban Pathak, Srikanth Radhakrishna
2017 Quanta  
We review the progress of quantum cryptography in the last decade, covering quantum key distribution and other applications.</p><p>Quanta 2017; 6: 1–47.</p>  ...  <p>Uniquely among the sciences, quantum cryptography has driven both foundational research as well as practical real-life applications.  ...  In this way, any quantum dialogue can be turned into that for quantum secure direct communication. In quantum secure direct communication, a meaningful message is typically sent by the sender.  ... 
doi:10.12743/quanta.v6i1.57 fatcat:nwczh5zqjjch3abhrpcjb34ry4

Design of Voltage Pulse Control Module for Free Space Measurement-Device-Independent Quantum Key Distribution [article]

Sijie Zhang, Nan Zhou, Fanshui Deng, Hao Liang
2018 arXiv   pre-print
Measurement-Device-Independent Quantum Key Distribution (MDIQKD) protocol has been proved that it is unaffected by all hacking attacks, and ensures the security of information theory even when the performance  ...  Fiber channel has been used by the previous MDIQKD experimental device. However, the signal attenuation increases exponentially as the transmission distance increases.  ...  Measurement-device-independent quantum key distribution (MDIQKD) protocol [1] , [2] , which is immune to all hacking attacks on detection, guarantees the security of information theoretically even with  ... 
arXiv:1806.01989v2 fatcat:7aadf42fmbecncqfkjtmvaq77i

High-Capacity Quantum Secure Direct Communication With Orbital Angular Momentum of Photons

Sichen Mi, Tie-jun Wang, Guang-sheng Jin, Chuan Wang
2015 IEEE Photonics Journal  
In this work, we propose a feasible basis-independent encoding scheme for OAM states and show its application in high-dimensional quantum secure direct communication, which enables direct transmission  ...  Index Terms: Orbital angular momentum, quantum secure direct communications, mutually unbiased bases.  ...  Quantum Secure Direct Communication Using OAM QSDC is a new mode of quantum communication which seeks to transmit messages directly and securely over a quantum channel [21] , [22] , avoiding the distribution  ... 
doi:10.1109/jphot.2015.2465844 fatcat:grppidtpbfb63di3zrf5li2qoa

Upper bounds on the rate in device-independent quantum key distribution [article]

Matthias Christandl, Roberto Ferrara, Karol Horodecki
2020 arXiv   pre-print
Device-independent quantum key distribution (DIQKD) is a version of QKD with a stronger security demand in that sender and receiver do not need to rely on the inner workings of their device, which consequently  ...  Quantum key distribution (QKD) is a method to distribute secret key between a sender and a receiver by the transmission of quantum particles (e.g. photons).  ...  Quantum key distribution (QKD) offers the possibility to distribute a perfectly secure key among two parties via quantum communication [1] .  ... 
arXiv:2005.13511v2 fatcat:jiy6lami7fd6rpwurbyftexbem

Integrated measurement server for measurement-device-independent quantum key distribution network

Ci-Yu Wang, Jun Gao, Zhi-Qiang Jiao, Lu-Feng Qiao, Ruo-Jing Ren, Zhen Feng, Yuan Chen, Zeng-Quan Yan, Yao Wang, Hao Tang, Xian-Min Jin
2019 Optics Express  
Recently, theoretical and experimental advances in measurement-device-independent (MDI-) QKD have successfully closed the physical backdoor in detection terminals.  ...  Quantum key distribution (QKD), harnessing quantum physics and optoelectronics, may promise unconditionally secure information exchange in theory.  ...  Integrated quantum device, featuring its cheap, compact, stable and flexible performance, becomes a revolutionary solution to establish quantum communication links.  ... 
doi:10.1364/oe.27.005982 fatcat:jiq6ebiksfgo7o5bq2n5pjt5ii

Practical challenges in quantum key distribution

Eleni Diamanti, Hoi-Kwong Lo, Bing Qi, Zhiliang Yuan
2016 npj Quantum Information  
Quantum key distribution (QKD) promises unconditional security in data communication and is currently being deployed in commercial applications.  ...  Nonetheless, before QKD can be widely adopted, it faces a number of important challenges such as secret key rate, distance, size, cost and practical security.  ...  Below, we discuss two protocols featuring high photon information capacity or noise tolerance. High dimension-QKD.  ... 
doi:10.1038/npjqi.2016.25 fatcat:kjo5q3a63ffhhpswelz2o2jyyi

Quantum communications infrastructure architecture: theoretical background, network structure and technologies. A review of recent studies from a European public infrastructure perspective [article]

Adam M. Lewis, Petra F. Scudo
2022 arXiv   pre-print
Particularly promising are the measurement device independent protocol, which eliminates photon-detector related security weaknesses, and the twin-field protocol, which uses similar techniques to extend  ...  Progress in the development of techniques for the construction of multiuser quantum communications networks is reviewed in light of the plans for an EU quantum communications infrastructure (EU QCI).  ...  Quantum secret sharing based on product states may be shown to be equivalent to N independent BB84 QKD protocols and thus unconditionally secure 54, 126 , if the devices were ideal.  ... 
arXiv:2110.06762v2 fatcat:nqfq7q5iejhkhnqorilq6ce2iy

Upper bounds on device-independent quantum key distribution rates and a revised Peres conjecture

Rotem Arnon-Friedman, Felix Leditzky
2021 IEEE Transactions on Information Theory  
Device-independent quantum key distribution (DIQKD) is one of the most challenging tasks in quantum cryptography.  ...  The protocols and their security are based on the existence of Bell inequalities and the ability to violate them by measuring entangled states.  ...  The most general protocol can include communication in both directions and is termed a twoway communication protocol.  ... 
doi:10.1109/tit.2021.3086505 fatcat:mjlj2qf22zcq5a2ldfg2tm75qy

Advancements in Optical Data Transmission and Security Systems [chapter]

Menachem Domb
2020 Cryptography - Recent Advances and Future Developments [Working Title]  
Optical Communication (OC) for data transmission was introduced more than 30 years ago.  ...  In this chapter, we focus on advancements in OC that represent innovative ideas of how to enable new methods of secured optical data transmission in different ways and not simply as an extension to current  ...  The main features of the 5G communication services include high capacity, low latency, high security, vast device connectivity, low energy consumption, and high quality of experience (QoE).  ... 
doi:10.5772/intechopen.94835 fatcat:tzn6zsxt4jejnaq7gaelynq67y

On the Security of Semi Device Independent QKD protocols [article]

Anubhav Chaturvedi, Maharshi Ray, Ryszard Veynar, Marcin Pawlowski
2018 arXiv   pre-print
While fully device-independent security in (BB84-like) prepare and measure Quantum Key Distribution (QKD) is impossible, it can be guaranteed against individual attacks in a semi device-independent (SDI  ...  Studying security under such minimal assumptions is especially relevant in the context of the recent quantum hacking attacks wherein the eavesdroppers can not only construct the devices used by the communicating  ...  The quantum formalism provides mathematical abstractions for states and measurements but no direct way to infer about them individually.  ... 
arXiv:1504.00939v3 fatcat:voltyp5twfcehdzxmhlkedpsui

Energy-Efficient Mining on a Quantum-Enabled Blockchain Using Light

Adam J Bennet, Shakib Daryanoosh
2019 Ledger  
Instead, clients on the network need only trust the transparent network code, and that their devices adhere to the rules of quantum physics.  ...  The network is hybridised, utilising digital systems for sharing and processing classical information combined with a fibre-optic infrastructure and quantum devices for transmitting and processing quantum  ...  Invocation of the measurement independence assumption may be avoided by ensuring measurement devices employ genuinely ran-dom sources of measurement setting, typically enacted with a quantum random number  ... 
doi:10.5195/ledger.2019.143 fatcat:uunelm2n7ngglplmass2peijza

On the Use of Quantum Entanglement in Secure Communications: A Survey [article]

Keith Shannon, Elias Towe, Ozan K. Tonguz
2020 arXiv   pre-print
in quantum cryptography or secure communications in conjunction with Quantum Entanglement.  ...  ultimate frontier of secure communications.  ...  Measurement Device Independent QKD (MDI-QKD) In yet another type of protocol that is different from deviceindependent quantum key distribution, measurement device independent (MDI) quantum key distribution  ... 
arXiv:2003.07907v1 fatcat:sipwwjnpvnfe3h5dtzlqf3hcee

Fundamental rate-loss tradeoff for optical quantum key distribution

Masahiro Takeoka, Saikat Guha, Mark M. Wilde
2014 Nature Communications  
real need for quantum repeaters to perform QKD at high rates over long distances.  ...  We show that the secret-key-agreement capacity of a lossy and noisy optical channel assisted by unlimited two-way public classical communication is limited by an upper bound that is solely a function of  ...  We also acknowledge Mark Byrd, Eric Chitambar and the other participants of the Boris Musulin Workshop on Open Quantum Systems and Information Processing for helpful feedback.  ... 
doi:10.1038/ncomms6235 pmid:25341406 fatcat:6m57yhlvgjdqpdb5catk3cf5he

Energy efficient mining on a quantum-enabled blockchain using light [article]

Adam J Bennet, Shakib Daryanoosh
2019 arXiv   pre-print
Instead, clients on the network need only trust the transparent network code, and that their devices adhere to the rules of quantum physics.  ...  The network is hybridised, utilising digital systems for sharing and processing classical information combined with a fibre--optic infrastructure and quantum devices for transmitting and processing quantum  ...  or emulated by any arrangement of non-communicating analogue, digital, or quantum systems. 94 Thus, the devices either yield a correct and secure result, or the trust-test detects that the devices are  ... 
arXiv:1902.09520v2 fatcat:kzkq4jvvd5eyrf5nv6ug47m7be
« Previous Showing results 1 — 15 out of 10,923 results