检索结果-内蒙古大学图书馆

Quantum and Nonlinear Optics X 2023

作者： Shao, Yun Pan, Yan Wang, Heng Pi, Yaodi Ye, Ting Liu, Jinlu Li, Yang Huang, Wei Xu, Bingjie Science and Technology on Communication Security Laboratory Institute of Southwestern Communication Chengdu610041 China

ISBN: (纸本)9781510667990

The source noise in plug-and-play continuous variable quantum key distribution (CV-QKD) system plays a crucial role in determining the secret key rate and transmission distance. In general, the source noise is considered untrusted and fully controlled by Eve, which is because the laser travels through the unsecure channel before being modulated. However, this may overestimate the key information stolen by Eve leading to an underestimation of the key rate share between the legal communication parties. Here, we use a beam-splitter with signal attenuation to model the source noise combined with source monitoring scheme to characterize the source imperfection in the plug-and-play CV-QKD system. We show that the performance of the plug-and-play CV-QKD can be significantly improved under the above scheme compared to the untrusted source model. Our numerical simulation results also show that the plug-and-play CV-QKD with source monitoring has a key generation rate close to that of a trusted source under the same simulation parameters. © 2023 SPIE.

关键词： Quantum cryptography

来源：评论

学校读者我要写书评

暂无评论

A New Scheme for Orthogonal Dual-Polarization Continuous-Variable Quantum Key Distribution 10

A New Scheme for Orthogonal Dual-Polarization Continuous-Var...

引用

Quantum and Nonlinear Optics X 2023

作者： Zhang, Shuai Pan, Yan Wang, Heng Shao, Yun Zhang, Tao Liu, Jinlu Pi, Yaodi Huang, Wei Li, Yang Xu, Bingjie Science and Technology on Communication Security Laboratory Institute of Southwestern Communication Chengdu610041 China

ISBN: (纸本)9781510667990

In this article, we propose a pilot alternately assisted scheme of orthogonal dual-polarization and time multiplexing for the local local oscillator continuous-variable quantum key distribution (LLO CV-QKD). Our scheme utilizes time multiplexing and dual-polarization multiplexing techniques to dramatically isolate the quantum signal from the pilot light. To analyze the influence mechanism of time-domain diffusion and polarization perturbation on the key parameters, such as the channel transmittance and excess noise, of the studied system, a general LLO excess noise model based on polarization extinction ratio (PER) and time-domain pulse extinction ratio (TER) is established. We mainly focus on the photon-leakage noise from the reference path to the quantum signal path, which is first analyzed in the dual polarization LLO regime. Furthermore, we conduct a series of simulations to verify the proposed dual polarization and time multiplexing model. Results show that it maintains a low level of excess noise and a secure key rate (SKR) of 10.25 Mbps@25km can be obtained under the finite-size effect. We achieved 0.93Mbps@25km SKR under a relatively low PER of 17 dB in the nanosecond level pulse width. Our work greatly extends the application scenarios of the dual-polarization division multiplexing CV-QKD system and provides a theoretical and representative framework for the study of improving the performance of the dual-polarization CV-QKD system. © 2023 SPIE.

关键词： Quantum cryptography

来源：评论

学校读者我要写书评

暂无评论

Simple and Fast Polarization Tracking algorithm for Continuous-Variable Quantum Key Distribution System

Simple and Fast Polarization Tracking algorithm for Continuo...

引用

2023 Optical Fiber communications Conference and Exhibition, OFC 2023

作者： Pan, Yan Wang, Heng Shao, Yun Pi, Yaodi Ye, Ting Li, Yang Huang, Wei Xu, Bingjie Institute of Southwestern Communication Science and Technology on Communication Security Laboratory Chengdu610041 China

A simple and fast polarization tracking algorithm for pilot tone-assisted CV-QKD system is demonstrated. Experimental results show that the proposed algorithm can track polarization scrambling rate ≥12.57 krad/s with... 详细信息

ISBN: (纸本)9781957171180

关键词： Quantum optics

来源：评论

学校读者我要写书评

暂无评论

25 MHz repetition rate pilot-tone-assisted Gaussian-modulated continuous-variable quantum key distribution with a local local oscillator 19

25 MHz repetition rate pilot-tone-assisted Gaussian-modulate...

引用

19th International Conference on Optical communications and Networks, ICOCN 2021

作者： Wang, Heng Pi, Yaodi Shao, Yun Pan, Yan Huang, Wei Li, Yang Xu, Bingjie Science and Technology on Communication Security Laboratory Institute of Southwestern Communication Chengdu610041 China

ISBN: (纸本)9781665424462

We experimentally demonstrate a 25 MHz repetition rate pilot-tone-assisted Gaussian-modulated continuous-variable quantum key distribution (CVQKD) with a local local oscillator (LLO) by employing the frequency-multiplexing and polarization-multiplexing techniques. In the proposed LLO-CVQKD system, the strong pilot tone and weak quantum signal can be separated in different frequency and polarization domain for avoiding the crosstalk between them and guaranteeing different detection requirements of low-noise for quantum signal and high-saturation limitation for pilot tone. Moreover, the dominant phase noise over 25 km optical fiber channel can be compensated in real time for supporting high secure key rate of 1.61 Mbps in the asymptotic regime. © 2021 IEEE.

关键词： Quantum cryptography

来源：评论

学校读者我要写书评

暂无评论

The cryptographic properties of the autocorrelation functions for encryption algorithm

The cryptographic properties of the autocorrelation function...

引用

International Conference on Mechatronics and Intelligent Robotics, ICMIR 2018

作者： Zhou, Yu Zhang, Aili Cao, Yunfei Science and Technology on Communication Security Laboratory Chengdu610041 China Xinxiang453007 China

ISBN: (纸本)9783030002138

The security for this Wireless sensor is important, and it is estimated by encryption algorithm. The basic component (named Boolean function) with encryption algorithm is studied, and we obtain the sum of high-order autocorrelation function of Boolean functions in cryptographic algorithms. The definition of the k-th autocorrelation function is given, we give the connections between the sum of the r-th autocorrelation functions and the sum of the (r − 1)-th autocorrelation functions. We obtain the tightness of the upper or lower bounds on the sum of the r-th autocorrelation function. We give the connection from Walsh transform and the sum of the r-th autocorrelation function. © Springer Nature Switzerland AG 2019.

关键词： Autocorrelation

来源：评论

学校读者我要写书评

暂无评论

Zeta-Functions of Curves of Genus 3 over Finite Fields

引用

Acta Mathematica Sinica,English Series 2010年第11期26卷 2223-2230页

作者： Fei YU Hong Xi TONG Science and Technology on Communication Security Laboratory Chengdu 610041 P. R. China Department of Mathematics Shanghai University Shanghai 200444 P. R. China

In this paper, we determine zeta-functions of some curves of genus 3 over finite fields by gluing three elliptic curves based on Xing＇s research, and the examples show that there exists a maximal curve of genus 3 ove... 详细信息

关键词： Elliptic curves zeta-functions Jacobian varieties maximum curves

来源：评论

学校读者我要写书评

暂无评论

Searching short recurrences of nonlinear shift registers via directed acyclic graphs 7

Searching short recurrences of nonlinear shift registers via...

引用

7th China International Conference on Information security and Cryptography, Inscrypt 2011

作者： Wang, Lin Shen, Bing Qiao, Tongxu Science and Technology on Communication Security Laboratory Chengdu 610041 Sichuan China No.30 Institute of CETC Chengdu 610041 Sichuan China

ISBN: (纸本)9783642347030

Finding a recurrence of a shift register gives its equivalent shift register in Fibonacci configuration and hence helps to decide whether different nonlinear shift registers are equivalent, i.e., whether they generate the same set of output sequences. We define a dependence graph of a shift register and it is a directed acyclic graph related to the shift register. We show that existence of a dependence graph with a special property of a nonlinear shift register ensures existence of a short recurrence of the sequence generated by the nonlinear shift register. We also present an algorithm to search dependence graphs of a nonlinear shift register. © 2012 Springer-Verlag Berlin Heidelberg.

关键词： Shift registers

来源：评论

学校读者我要写书评

暂无评论

The security Analysis of Two-Step Quantum Direct communication Protocol in Collective-Rotation Noise Channel

引用

Chinese Physics Letters 2015年第8期32卷 1-5页

作者：李剑孙风琪潘泽世聂金瑞陈彦桦袁开国 School of Computer Beijing University of Posts and Telecommunications Beijing 100876 Hefei National Laboratory for Physical Sciences at the Microscale University of Science and Technology of China Hefei 230026 Scienee and Technology on Communication Security Laboratory Chengdu 610041

To analyze the security of two-step quantum direct communication protocol （QDCP） by using Einstein-Podolsky Rosen pair proposed by Deng et al. [Phys. Rev. A 68 （2003）042317] in collective-rotation noise channel, an excellent model of noise analysis is proposed. In the security analysis, the method of the entropy theory is introduced, and is compared with QDCP, an error rate point Qo（M ：（Q0, 1.0）） is given. In different noise levels, if Eve wants to obtain the same amount of information, the error rate Q is distinguishable. The larger the noise level ~ is, the larger the error rate Q is. When the noise level ~ is lower than 11%, the high error rate is 0.153 without eavesdropping. Lastly, the security of the proposed protocol is discussed. It turns out that the quantum channel will be safe when Q 〈 0.153. Similarly, if error rate Q〉 0.153 = Q0, eavesdropping information I 〉 1, which means that there exist eavesdroppers in the quantum channel, and the quantum channel will not be safe anymore.

关键词： The security Analysis of Two-Step Quantum Direct communication Protocol in Collective-Rotation Noise Channel EPR

来源：评论

学校读者我要写书评

暂无评论

A Unified Trust Service Scheme for Heterogeneous Identity Alliance

A Unified Trust Service Scheme for Heterogeneous Identity Al...

引用

2020 International Conference on Networking and Network Applications, NaNA 2020

作者： Dong, Guishan Chen, Yuxiang Hao, Yao Jian, Bai Zhang, Zhaolei Sijie, Liao China Electronics Technology Cyber Security Co. Ltd China Science and Technology on Communication Security Laboratory Chengdu610041 China

ISBN: (纸本)9781728189543

With the development of network technology, there exists large number of identity management systems with different architectures and different application areas in cyberspace. How to manage various network identities is becoming a challenging problem. In this paper, we begin by reviewing the characteristics of traditional identity management system and propose a new unified trust service scheme based on blockchain to integrate the isolated identity management system. We then present the theory verification that we show the analysis and experiment under our new scheme. Interestingly, our new constructions are more feasible than traditional centralized solutions. Furthermore, traditional solutions for heterogeneous identity alliance only consider the central authority to integrate different identity management system. We consider the natural extension where different identity management system can join alliance autonomously rather than compulsively. We formally define a unified trust service scheme for Heterogeneous identity alliance, and present an efficient construction. © 2020 IEEE.

关键词： Blockchain

来源：评论

学校读者我要写书评

暂无评论

High-rate discrete-modulated continuous-variable quantum key distribution with composable security

arXiv

引用

arXiv 2025年

作者： Wu, Mingze Pan, Yan Li, Junhui Wang, Heng Fan, Lu Shao, Yun Li, Yang Huang, Wei Yu, Song Xu, Bingjie Zhang, Yichen Yang, Jie Pi, Yaodi Ye, Ting Sun, Ao Jiang, Lin Yan, Lianshan Pan, Wei National Key Laboratory of Security Communication Institute of Southwestern Communication Chengdu610041 China State Key Laboratory of Information Photonics and Optical Communications School of Electronic Engineering Beijing University of Posts and Telecommunications Beijing100876 China Center for Information Photonics & Communications School of Information Science and Technology Southwest Jiaotong University Sichuan Chengdu611756 China

Discrete modulation represents a practical and device-friendly solution for high speed transmission in continuous-variable quantum key distribution (CV-QKD), offering high compatibility with coherent optical communication systems. However, when it comes to transmission distance, discrete-modulated CV-QKD systems fall considerably short compared to their Gaussian-modulated counterparts. Leveraging an advanced security analysis method and probabilistic shaped 16-quadrature amplitude modulation, combined with experimental parameter optimization and an efficient fractional-spacing equalization method based on a variable step-size least mean square (LMS) algorithm, we have experimentally showcased a local local oscillator (LLO) CV-QKD system over 126.56 km span of single-mode fiber with secret key rate of 171.42 kbps. This system sets a new record of the transmission distance of LLO CV-QKD systems, and provides a promising candidate for the commercialization and practical application of CV-QKD technology. © 2025, CC BY.

关键词： Quadrature amplitude modulation

来源：评论

学校读者我要写书评

暂无评论

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案：

请选择收藏分类：

通借通还

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：