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Multiparty simultaneous quantum identity authentication with secret sharing

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Science china(Physics,Mechanics & Astronomy) 2008年第3期51卷 321-327页

作者： YANG YuGuang1,2,WEN QiaoYan3 & ZHANG Xing4.5 1 College of Computer Science and Technology,beijing university of Technology,beijing 100022,china 2 State Key Laboratory of {4. Security (Graduate university of the Chinese Academy of Sciences),beijing 10004.,china 3 school of Science,beijing university of posts and Telecommunications,beijing 100876,china 4.Institute of Electronic Technology,{4. engineering university,Zhengzhou 4.0004.china 5 Trusted Computing Laboratory,beijing university of Technology,beijing 100022,china College of Computer Science Technology Beijing University of Technology Beijing 100022 China State Key Laboratory of information Security [Graduate university of the Chinese Academy of Sciences] Beijing 100049 China school of Science Beijing University of Posts Telecommunications Beijing 100876 China Institute of Electronic Technology Information Engineering University Zhengzhou 450004 China Trusted Computing Laboratory Beijing University of Technology Beijing 100022 China

Two multiparty simultaneous quantum identity authentication (MSQIA) protocols based on secret sharing are presented. All the users can be authenticated by a trusted third party (TTP) simultaneously. In the first protocol,the TTP shares a random key K with all the users using quantum secret sharing. The ith share acts as the authentication key of the ith user. When it is necessary to perform MSQIA,the TTP generates a random number R secretly and sends a sequence of single photons encoded with K and R to all the users. According to his share,each user performs the corresponding unitary operations on the single photon sequence sequentially. At last,the TTP can judge whether the impersonator exists. The sec-ond protocol is a modified version with a circular structure. The two protocols can be efficiently used for MSQIA in a network. They are feasible with current technol-ogy.

关键词： quantum identity authentication secret sharing quantum cryptography

Multi-function Device Based on Two Terahertz Optical Asymmetric Demutiplexers

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Chinese Journal of Lasers 1999年第5期8卷 3-5页

作者： HONG Xiaobin LIN Jintong(Optical communication R & D Center, beijing university of posts and Telecommunications, beijing 100876, china) 北京邮电大学光通信R&D中心北京 100876 北京邮电大学光通信R&D中心北京

A multi-function device based on two terahertz optical asymmeric demultiplexers (TOAD) is proposed, which can be used simultancously as demultiplexing, data regeneration,clock recovery and wavelength conversion unit. The device can work at an ultra-high speed optical time-division multiplexing (OTDM) system with relativey low speed components.

关键词： OTDM clock recovery phase-lock loop (PLL) terahertz optical asymmetric demultiplexer (TOAD) data regeneration wavelength conversion

Threshold quantum secure direct communication without entanglement

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Science china(Physics,Mechanics & Astronomy) 2008年第2期51卷 176-183页

作者： YANG YuGuang1,3 & WEN QiaoYan2 1 College of Computer Science and Technology, beijing university of Technology, beijing 100022, china 2 {4. of Science, beijing university of posts and Telecommunications, beijing 100876, china 3 State Key Laboratory of information Security (Graduate {4. of Chinese Academy of Sciences), beijing 10004., china 1. College of Computer Science and Technology Beijing University of Technology Beijing 100022 China 3. State Key Laboratory of information Security (Graduate school of Chinese Academy of Sciences) Beijing 100049 China 2. school of Science Beijing University of Posts and Telecommunications Beijing 100876 China

For the first time, a threshold quantum secure direct communication (TQSDC) scheme is presented. Similar to the classical Shamir's secret sharing scheme, the sender makes n shares, S1, …, Sn of secret key K and each receiver keeps a share secretly. If the sender wants to send a secret message M to the receivers, he en-codes the information of K and M on a single photon sequence and sends it to one of the receivers. According to the secret shares, the t receivers sequentially per-form the corresponding unitary operations on the single photon sequence and ob-tain the secret message M. The shared shares may be reusable if it can be judged that there is no eavesdropper in line. We discuss that our protocol is feasible with current technology.

关键词： quantum secure direct communication threshold secure direct communication quantum secret sharing

Secure network coding in the presence of eavesdroppers

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Science china(information Sciences) 2010年第3期53卷 648-658页

作者： LUO MingXing1,2,3, YANG YiXian1,2,3, WANG LiCheng1,2,3 & NIU XinXin1,2,3 1information Security Center, State Key Laboratory of Networking and Switching Technology, beijing university of posts and Tele{4.s, beijing 100876, china 2Key Laboratory of Network and information Attack and Defence Technology of MOE, beijing university of posts and Tele{4.s, beijing 100876, china 3National {14. Laboratory for Disaster Backup and Recovery, beijing university of posts and Tele{4.s, beijing 100876, china 1. information Security Center State Key Laboratory of Networking and Switching Technology Beijing University of Posts and Telecommunications Beijing 100876 China2. Key Laboratory of Network and Information Attack and Defence Technology of MOE Beijing University of Posts and Telecommunications Beijing 100876 China3. National Engineering Laboratory for Disaster Backup and Recovery Beijing University of Posts and Telecommunications Beijing 100876 China

Our concern, in the paper, is to construct information-theoretic secure network coding in the presence of eavesdroppers. Based on the generalized attack model and all-or-nothing transformation, the security of network coding in the generalized combination network can be characterized by the network capacity and the min-cut bound of wiretapping set from the source. Furthermore, it can be extended to any directed acyclic networks with single source. Compared with the traditional results, we construct information-theoretic secure network coding without additional encryptions and giving up any capacity.

关键词： all-or-nothing transformation secure network coding eavesdropping

Relaying Selection with Network-coded Cooperative Protocols in Aeronautical communications

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Chinese Journal of Aeronautics 2010年第1期23卷 75-83页

作者： Du Bing,Zhang Jun school of Electronics and information engineering,beijing {4. of Aeronautics and Astronautics,beijing 100191,china [a] school of Electronics information engineering Beijing University of Aeronautics Astronautics Beijing 100191 China

In this article, we exploit the idea of network-coded cooperative protocol in aeronautical communications which combines different source nodes＇ information at the relay and joint decoding at the destination. Recently, the network coding in cooperative communications has been categorized into two mainstreams, bit-level and signal-level combinations, which are both discussed in the article. And to be exclusively,multiple access relay channel（MARC） is adopted. The mutual information expressions of both above-cited network-coded protocols are deduced, which prove that without proper selected relays to perform network coding, the spatial diversity of the proposed protocol cannot be obtained. This then leads to search for the selection and grouping algorithms. An adjacency matrix is defined to describe the connectivity of the nodes in one radio contact disk, so that, the selection and grouping of algorithm is equivalent to constructing this adjacency matrix to minimize the system outage probability evaluated in term of the mutual information. Besides, a network-coded cooperative protocol requires the acyclic network, of which the construction is to avoid loop-4.in the matrix. The article ends with simulations to demonstrate the viability of the proposed algorithms.

关键词： communication network coding outage probability mutual information bit-level signal-level

Research on user-aware QoS based Web services composition

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The Journal of china Universities of posts and Telecommunications 2009年第5期16卷 125-130页

作者： LIU Feng , LEI Zhen-ming Key Laboratory of information Processing and Intelligent Technology, beijing university of posts and Tele{4.s, beijing 100876, china [a]Key Laboratory of information Processing and Intelligent Technology beijing university of posts and Telecommunications beijing 100876 china

To improve user experience of composite Web services, a user-aware quality of service （QoS） based Web services composition model is proposed. Under such model, a Web services selection method based on quantum genetic algorithm is proposed. This algorithm uses quantum bit encoding, dynamic step-length quantum gate angle adjustment, neighborhood service search and dynamic punishment strategy to expand search scope and speed up convergence. Simulation experiment shows that this algorithm is more efficient than other existing algorithms in Web services selection.

关键词： Web services composition user awareness quality of service quantum genetic algorithm

On the construction of multi-output Boolean functions with optimal algebraic immunity

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Science china(information Sciences) 2012年第7期55卷 1617-1623页

作者： ZHANG Jie 1,2 ,SONG ShouChao 1 ,DU Jiao 2,3 & WEN QiaoYan 2 1 school of Science,beijing university of posts and Tele{4.s,beijing 100876,china 2 State Key Laboratory of Networking and Switching Technology,beijing university of posts and Tele{4.s,beijing 100876,china 3 Department of Mathematics,Xinxiang university,Xinxiang 4.3003,china 1. school of Science Beijing University of Posts and Telecommunications Beijing 100876 China2. State Key Laboratory of Networking and Switching Technology Beijing University of Posts and Telecommunications Beijing 100876 China3. Department of Mathematics Xinxiang University Xinxiang 453003 China

In this paper,we show a construction of multi-output Boolean functions with optimal algebraic ***,the relationship between the algebraic immunity of a multi-output Boolean function and those of its component functions is *** show that all the component functions,together with their nonzero linear combination,of the multi-output Boolean functions achieved by this construction have optimal algebraic immunity simultaneously.

关键词： algebraic immunity Boolean functions algebraic attacks annihilators

Quasi-secure quantum dialogue using single photons

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Science china(Physics,Mechanics & Astronomy) 2007年第5期50卷 558-562页

作者： YANG YuGuang1,2 & WEN QiaoYan31 College of Computer Science and Technology, beijing university of Technology, beijing 100022, china 2 State Key Laboratory of {4. Security, Graduate university of the Chinese Academy of Sciences, beijing 10004., china 3 school of Science, beijing university of posts and Telecommunications, beijing 100876, china College of Computer Science Technology Beijing University of Technology Beijing 100022 China State Key Laboratory of information Security Graduate University of the Chinese Academy of Sciences Beijing 100049 China school of Science Beijing University of Posts Telecommunications Beijing 100876 China

A quasi-secure quantum dialogue protocol using single photons was proposed. Different from the previous entanglement-based protocols, the present protocol uses batches of single photons which run back and forth between the two parties. A round run for each photon makes the two parties each obtain a classical bit of information. So the efficiency of information transmission can be increased. The present scheme is practical and well within the present-day technology.

关键词： quantum dialogue, single photon, quantum secure direct communication

Coexistence of broadband power line communication systems

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The Journal of china Universities of posts and Telecommunications 2009年第4期16卷 125-128页

作者： YANG Biao ,L Ying-hua,ZHANG Hong-xin school of Electronic engineering,beijing university of {4. and Telecommunications,beijing 100876,china [a]school of Electronic engineering beijing university of posts and Telecommunications beijing 100876 china

Recent progress in home networks enhances the application of broadband power line communication （BPL） since it does not require any installation of new communication lines or outlets. However, high-density distribution of BPL devices may bring down the access quality. Besides, the electromagnetic field radiating from the power line may cause interference with other radio systems. Thus, the objective of this study is to investigate the impact of cumulative interference in BPL systems, especially focused on indoor environment. A 2-D model describing the BPL transmission activity is proposed. Based on transmission characteristics of the main networks, it takes into account the coexistence effect of the BPL devices. The maximum acceptable density of BPL devices and the radiation field are finally determined.

关键词： BPL coexistence effect radiating electromagnetic field