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A One-Time Pad Encryption Scheme Based on Efficient Physical-Layer Secret Key Generation for Intelligent IoT System
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作者 Liquan Chen Kailin Cao +2 位作者 Tianyu Lu Yi Lu Aiqun Hu 《China Communications》 SCIE CSCD 2022年第7期185-196,共12页
The one-time pad(OTP)is an applicationlayer encryption technique to achieve the informationtheoretic security,and the physical-layer secret key generation(SKG)technique is a promising candidate to provide the random k... The one-time pad(OTP)is an applicationlayer encryption technique to achieve the informationtheoretic security,and the physical-layer secret key generation(SKG)technique is a promising candidate to provide the random keys for OTP.In this paper,we propose a joint SKG and OTP encryption scheme with the aid of a reconfigurable intelligent surface(RIS)to boost secret key rate.To maximize the efficiency of secure communication,we divide the process of secure transmission into two stages:SKG and then encrypted packet transmission.Meanwhile,we design an optimal algorithm for allocating time slots for SKG to maximize SKG efficiency without security risk.Furthermore,we design a key updating protocol based on our SKG scheme for OTP encryption.Simulation results verify that our scheme can generate keys securely and efficiently,and significantly improve the secure communication performance in an intelligent IoT system. 展开更多
关键词 physical layer security intelligent internet of things one-time pad reconfigurable intelligent surface
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Robust quantum secure direct communication with a quantum one-time pad over a collective-noise channel 被引量:28
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作者 GU Bin ZHANG ChengYi +1 位作者 CHENG GuoSheng HUANG YuGai 《Science China(Physics,Mechanics & Astronomy)》 SCIE EI CAS 2011年第5期942-947,共6页
We present two robust quantum secure direct communication (QSDC) schemes with a quantum one-time pad over a collective-noise channel. Each logical qubit is made up of two physical qubits and it is invariant over a col... We present two robust quantum secure direct communication (QSDC) schemes with a quantum one-time pad over a collective-noise channel. Each logical qubit is made up of two physical qubits and it is invariant over a collective-noise channel. The two photons in each logical qubit can be produced with a practically entangled source, i.e., a parametric down-conversion source with a beta barium borate crystal and a pump pulse of ultraviolet light. The information is encoded on each logical qubit with two logical unitary operations, which will not destroy the antinoise feather of the quantum systems. The receiver Bob can read out the sender's message directly with two single-photon measurements on each logical qubit, instead of Bell-state measurements, which will make these protocols more convenient in a practical application. With current technology, our two robust QSDC schemes are feasible and may be optimal ones. 展开更多
关键词 quantum secure direct communication quantum one-time pad ROBUST collective noise
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一种基于混沌序列的安全网络编码设计与分析 被引量:4
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作者 徐光宪 李晓彤 罗荟荟 《计算机科学》 CSCD 北大核心 2013年第5期147-149,163,共4页
提出了一种低开销的安全网络编码方案。该方案利用混沌序列较高的随机性和对初始条件极度敏感的特性,将混沌序列与原始信源消息向量相结合,构造出"一次一密"的密码体制,从而实现该编码方案的完善保密性。该方案仅在原随机网... 提出了一种低开销的安全网络编码方案。该方案利用混沌序列较高的随机性和对初始条件极度敏感的特性,将混沌序列与原始信源消息向量相结合,构造出"一次一密"的密码体制,从而实现该编码方案的完善保密性。该方案仅在原随机网络编码体制的基础上对信源进行了改变,中间节点保持不变,具有普遍通用性;并且在信源处仅加入一个干扰信号来保证编码方案的安全性。理论分析结果表明,在攻击者具有有限窃听能力的情况下,该安全网络编码方案可以保证完善其保密性,且发送信号的开销最小。 展开更多
关键词 网络编码 混沌序列 一次一密 通用性 完善保密 低开销
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量子密钥分发的变电站间测控信号一次一密光纤传输方案 被引量:10
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作者 苗新 张亮 +2 位作者 马平 金乃正 朱玛 《电力系统自动化》 EI CSCD 北大核心 2017年第12期212-217,230,共7页
为了探索变电站间测控信号传输更理想的安全通信方式,解决量子密钥分发与一次一密结合中的工程实用化问题,提出了一种解决方案,将明文、密文和密钥都统一为标准的E1接口信号,满足真正的一次一密体制要求。量子密钥分发基于偏振态编码,... 为了探索变电站间测控信号传输更理想的安全通信方式,解决量子密钥分发与一次一密结合中的工程实用化问题,提出了一种解决方案,将明文、密文和密钥都统一为标准的E1接口信号,满足真正的一次一密体制要求。量子密钥分发基于偏振态编码,采用诱骗态协议,能根据光纤信道的质量,通过选择压缩比1,128,1 024来调整量子密钥分发的速率,并支持中国和国际标准的商用密码加密算法。模拟仿真表明:与经典密钥分发系统相比,所提方案在机密性、完整性和可识别性等方面都具有优势,而且具备密性强化的独特性。 展开更多
关键词 量子密钥分发 一次一密 智能变电站 测控信号 传输系统
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基于双密钥的三维Vigenere密码的研究与应用 被引量:2
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作者 刘桂海 张璟 李军怀 《计算机工程与应用》 CSCD 北大核心 2008年第12期127-129,共3页
分析了经典维吉尼亚密码及维吉尼亚方阵的相关概念,在此基础上提出了一个三维维吉尼亚立方体模型。该模型使用双密钥对明文进行二次加密,削弱了密文的统计频率特征。理论分析表明,该算法在两个短密钥控制下达到了单个长密钥的加密效果,... 分析了经典维吉尼亚密码及维吉尼亚方阵的相关概念,在此基础上提出了一个三维维吉尼亚立方体模型。该模型使用双密钥对明文进行二次加密,削弱了密文的统计频率特征。理论分析表明,该算法在两个短密钥控制下达到了单个长密钥的加密效果,可以对明文进行一次一密加密,极大地提高了解密难度。 展开更多
关键词 维吉尼亚密码 一次一密 维吉尼亚方阵 维吉尼亚立方体
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Analysis and Application of Endogenous Wireless Security Principle for Key Generation 被引量:4
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作者 Xu Wang Liang Jin +1 位作者 Yangming Lou Xiaoming Xu 《China Communications》 SCIE CSCD 2021年第4期99-114,共16页
The open and broadcast nature of wireless channels leads to the inherent security problem of information leakage in wireless communication.We can utilize endogenous security functions to resolve this problem.The funda... The open and broadcast nature of wireless channels leads to the inherent security problem of information leakage in wireless communication.We can utilize endogenous security functions to resolve this problem.The fundamental solution is channel-based mechanisms,like physical layer secret keys.Unfortunately,current investigations have not fully exploited the randomness of wireless channels,making secret key rates not high.Consequently,user data can be encrypted by reducing the data rate to match the secret key rate.Based on the analysis of the endogenous wireless security principle,we proposed that the channel-based endogenous secret key rate can nearly match the maximum data rate in the fast-fading environments.After that,we validated the proposition in an instantiation system with multiple phase shift keying(MPSK)inputs from the perspectives of both theoretical analysis and simulation experiments.The results indicate that it is possible to accomplish the onetime pad without decreasing the data rate via channelbased endogenous keys.Besides,we can realize highspeed endogenously secure transmission by introducing independent channels in the domains of frequency,space,or time.The conclusions derived provide a new idea for wireless security and promote the application of the endogenous security theory. 展开更多
关键词 endogenous wireless security one-time pad physical layer security secret keys generation
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基于DES和RSA的一次一密加密方案的研究 被引量:1
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作者 夏一博 章玲玲 《江西电力》 2011年第6期38-40,共3页
通过借鉴传统加密体制的优点,引入KDC技术,提出一种新的一次一密加密体制,较好地利用了DES和RSA的优点,实现了"一次一密"的要求,从而为信息安全提供一种新的更加可靠的加密方式。
关键词 一次一密加密 数据加密 安全性 KDC
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