搜索结果: 1-15 共查到“QKD”相关记录15条 . 查询时间(0.079 秒)
中国科学院上海光学精密机械研究所时频与QKD交叉研究取得进展（图）
时间同步误差 双场 量子密钥
2023/9/25
中国科学院上海光学精密机械研究所桂有珍研究员团队提出了一个分析时间同步误差对双场量子密钥分发影响的理论模型。近期，相关研究成果发表在Physical Review A上。
中国科学院上海光机所时频与QKD交叉研究取得进展（图）
光学精密机械 量子密钥
2023/10/2
中国科学院上海光学精密机械研究所桂有珍研究员团队提出了一个分析时间同步误差对双场量子密钥分发（双场量子密钥分配，TF-QKD）影响的理论模型。2023年9月21日，相关研究成果以双场量子密钥分配中的时间同步误差为题，发表在P体格检查上。
上海光机所在时频与QKD交叉研究中取得新进展（图）
量子密钥 光子
2023/11/29
中国科学院上海光学精密机械研究所桂有珍研究员团队提出了一个分析时间同步误差对双场量子密钥分发（twin-field quantum key distribution, TF-QKD）影响的理论模型。相关成果2023年9月20日以“Time-synchronization error in twin-?eld quantum key distribution”为题发表在Physical Review...
We give the first information-theoretic security proof of the `Round Robin Differential Phase Shift' Quantum Key Distribution scheme. Our proof consists of the following steps. We construct an EPR var...
Round-Robin Differential Phase-Shift (RRDPS) is a Quantum Key Distribution (QKD) scheme proposed by Sasaki, Yamamoto and Koashi in 2014. It works with high-dimensional quantum digits (qudits). Its mai...
A QKD-based digital archiving solution providing everlasting confidentiality and integrity
QKD secret sharing commitments
2016/12/12
With increasing digitization, the amount of archived data that requires long-term protection of confidentiality and integrity increases rapidly. Examples include electronic health records, genome data...
One-Sided Device-Independent QKD and Position-based Cryptography from Monogamy Games
foundations quantum cryptography
2016/1/3
A serious concern with quantum key distribution (QKD)
schemes is that, when under attack, the quantum devices in a real-life
implementation may behave differently than modeled in the security
proof...
I review the ideas and main results in the derivation of security bounds in quantum key distribution for keys of finite length. In particular, all the detailed studies on specific protocols and imple...
Quantum Communications in Reconfigurable Optical Networks:DWDM QKD through a ROADM
Fiber optics communications Quantum communications
2015/6/9
We demonstrate coexistence of classical and quantum signals for quantum key distribution in a DWDM reconfigurable networking environment using a ROADM. We show how the limiting noise mechanism can dep...
基于相位调制偏振态QKD系统的量子信道校正发送方案
量子密钥分配 量子信息 偏振编码
2009/9/15
提出了一种基于相位调制偏振态QKD系统的量子信道校正发送的新方案—采用波导型相位调制器研制成电控连续可调光学相移器,它可随相位调制器输入电压的连续改变而产生连续的相移,从而控制输出的偏振态；在其前放置一个半波片,即可校正接收端偏振态量子态在信道中所发生的改变,从而保证信道传送密钥的可用性.通过理论推导和实验研究验证了基于相位调制偏振态QKD系统的量子信道校正发送方案的核心部件的可行性.由于本方案能...
Derivation of sensitivity of a Geiger mode APDs detector from a given efficiency for QKD experiments
Quantum Cryptography Detection sensitivity and efficiency
2010/4/7
The detection sensitivity (DS) of the commercial single-photon-receiver based on InGaAs gate-mode avalanche photodiode is estimated. Instalment of a digital-blanking-system (DBS) to reduce dark curren...
Scalable QKD Network Using Simple Key-Management Technique with On-Demand Crypto-Key Supply
QKD Network Key-Management Technique On-Demand Crypto-Key Supply
2015/7/31
We propose a simple key-management technique using novel crypto-key supply. We have also successfully demonstrated a five-node QKD network that uses dynamic quantum key generation and on-demand crypto...
Secure Identification and QKD in the Bounded-Quantum-Storage Model
Secure Identification QKD Bounded-Quantum-Storage Model
2008/5/30
We consider the problem of secure identification: user U proves to server S that he knows an agreed (possibly low-entropy) password w, while giving away as little information on w as possible,namely t...
基于BB84协议的实际QKD系统的窃听问题研究
量子密钥 BB84协议 光子数统计分布 窃听策略
2007/12/9
基于实际量子密钥分配系统中所使用的强衰减的激光脉冲并不是单光子,量子密钥分配的信道不是无损耗的,窃听者的技术能力也不是无限的这些具体问题,采用了分束窃听与截获重发窃听策略相结合的方案讨论了窃听问题并给出了合法用户在筛选后的密钥中所能容忍的误码率上限.
QKD系统在Breidbart基窃听下BB84协议的信息量研究
2007/8/20
给出了BB84协议的Breidbart基窃听的方案,分析并计算了各种截取/重发策略下施行QKD标准纠错手续后Alice/Eve的有效平均交互信息量和对Bob引起的错误率.结果显示了Breidbart基窃听/Breidbart基重发策略(B/B策略)最为有效,并提出了各种窃听方案下Alice和 Bob采取相应的反攻击策略.