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Electronic Payment Scheme to Prevent the Treachery

Wuhan University Journal of Natural Sciences 2006年第6期11卷 1745-1748页

作者： FAN Kai ZHANG Jun KOU Weidong XIAO Guozhen Key Laboratory of Computer Network and Information Security Ministry of Education Xidian University Xi＇an 710071 Shaanxi China

Treachery is one of the restrictions to the development of electronic commerce. To prevent the treachery from the participants in electronic commerce, in this paper a secure electronic payment scheme is proposed and its security is analyzed. This scheme can prevent the treachery only with the aid of an un-trusted third party. It is very simple and it also improves the security and provides the non-repudiation, accountability, fairness and privacy.

关键词： treachery electronic payment scheme electronic commerce security

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High-Order Bit Independence Criterion Test for the S-boxes

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Wuhan University Journal of Natural Sciences 2011年第5期16卷 447-451页

作者： GAO Sheng MA Wenping ZHU Jiwei Key Laboratory of Computer Network and Information Securityof the Ministry of Education/Xidian University Xi'an 710071Shannxi China

A new security test for the substitution boxes （S-boxes） high-order bit independence criterion （HOBIC） test, is presented. Different from the previous security tests for S-boxes, the HOBIC test can be used to measure the strength of an S-box against attacks that keep some of its input bits constant. Test results over the S-boxes of Data Encryption Standard （DES） and Advanced Encryption Standard （AES） are given and some possible applications of the HOBIC test are analyzed. Meanwhile, the source code for a basic version of the HOBIC test is also provided, the implement process of which shows that it is very fast and efficient for practical applications .

关键词： cryptography Boolean functions S-boxes highorder bit independence criterion （HOBIC） security test

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Fiber-coupler-based microfluidic system for trapping of DNA biomolecules

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Optoelectronics Letters 2019年第6期15卷 476-480页

作者： WU Ji-xuan WANG Qian SONG Bin-bin LIU Bo ZHANG Hao ZHANG Cheng DUAN Shao-xiang BAI Hua Tianjin Key Laboratory of Optoelectronic Detection Technology and Systems Tianjin Key Laboratory of Engineering Technologies for Cell Phamaceutica College of Electronic and Information Engineering Tianjin Polytechnic University Key Laboratory of Computer Vision and Systems Ministry of Education School of Computer Science and Engineering Tianjin University of Technology Key Laboratory of Optoelectronic Sensor and Sensing Network Technology College of Electronic Information and Optical Engineering Nankai University

A miniature fiber-coupler-based microfluidic system is proposed for trapping of DNA biomolecules. The loop-shaped fiber-coupler is fabricated by using flame tapering technique and integrated in a microfluidic channel. Probe-DNA immobilized on the fiber-coupler surface enables specific recognition of target DNA sequences and effectively facilitates the trapping of target DNA molecules. The binding characteristics of biomolecules on the fiber-coupler surface have been theoretically analyzed and experimentally demonstrated. Experimental results indicate that the spectral response of the loop-shaped fiber coupler immobilized with probe DNA exhibits a red-shift with the trapping of the DNA biomolecules. The proposed microfluidic system possesses such desirable merits as simple structure, label-free method and high integration, which make it a promising candidate for applications in molecular biology and related bioengineering areas.

关键词： fiber trapping system

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Improvement of CORBA audio/vided streaming service

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Jisuanji Gongcheng/computer Engineering 2006年第5期32卷 207-209+228页

作者： Chu, Zi Feng, Mingzheng Dai, Jiangpeng Department of Computer Science and Engineering Southeast University Nanjing 210096 China Key Laboratory for Computer Network and Information Integration Nanjing 210096 China

The paper makes two contributions to the study of A/V streaming service: (1) introduces a service management mechanism for monitoring and controlling resource utilities to enhance quality of service guarantees;(2) improves the security of A/V streaming service and reduces the complexity of encryption computations by applying CORBA security services in conjunction of the wavelet compression and encryption technology for multimedia data. An improved CORBA A/V streaming service prototype is implemented based on ORBUS which is a real-time CORBA ORB, and its application in networked manufacturing system is also discussed.

关键词： CORBA Multimedia QoS Security services Streaming

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A resilient trust management scheme for defending against reputation time-varying attacks based on BETA distribution

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Science China(information Sciences) 2017年第4期60卷 60-70页

作者： Weidong FANG Wuxiong ZHANG Yang YANG Yang LIU Wei CHEN Key Laboratory of Wireless Sensor Network & Communication Shanghai Institute of Microsystem and Information Technology Chinese Academy of Sciences Shanghai Research Center for Wireless Communication School of Computer Science and Technology China University of Mining and Technology

Compared with the encryption and the authentication which can prevent the external attacks,the trust management schemes are the better approaches for defending against the internal attacks in wireless sensor network(WSN). The reputation time-varying(RTV) attacks are internal attacks. In the reputation timevarying attacks, the reputation value of nodes is manipulated to adjust dynamically by the compromised nodes or malicious attackers. Hence, these attacks have greater covert and invasive. In this paper, we propose a Timewindow-based Resilient Trust Management Scheme(TRTMS) to defend against the reputation time-varying attacks in wireless sensor network. In this scheme, based on BETA distribution, the behaviors of compromised nodes are analyzed for a period of time, and then the difference judgment and the trend analysis are utilized to identify the abnormality of nodes’ reputation value, meanwhile, the control factor Fc and the time window are introduced to verify and remove the compromised modes from the suspected malicious nodes, which refer to those nodes’ reputation value changes are caused by the wireless channel changes. The result of simulation shows that our proposed scheme can defend reputation time-varying attacks effectively and it is convenient to implement.

关键词： wireless sensor network(WSN) reputation time-varying attack trust value trust management time window

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Securing STAR-FC-RIS empowered integrated sensing and multiuser communications against target eavesdropping

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Science China(information Sciences) 2024年第11期67卷 335-346页

作者： Shuying LIN Yulong ZOU Fu XIAO Bin LI School of Telecommunications and Information Engineering Nanjing University of Posts and Telecommunications School of Computer Science Nanjing University of Posts and Telecommunications Key Laboratory of Broadband Wireless Communication and Sensor Network Technology Nanjing University of Posts and Telecommunications

This paper investigates a simultaneous-transmitting-and-reflecting fully-connected reconfigurable intelligent surface(STAR-FC-RIS) empowered integrated sensing and multiuser communications(ISAMC) network, where a dual-functional radar-communication base station detects a malicious radar target nearby and communicates with multiple legitimate users on the other side of the STAR-RIS. We utilize an integrated architecture that combines the fully-connected(FC)-RIS, an emerging type of beyond-diagonal(BD)-RIS, with the time-switching(TS)-STAR-RIS to enhance both the sensing and communications at the cost of possible target intercepting and propose the simultaneous-transmitting-and-reflecting fully-connected RIS(STAR-FCR) schemes to strike a balance between sensing and communications performance. Thereafter, observing the security-reliability performance tradeoff of the downlink ISAMC, we conduct closed-form analyses to compare COPs of round-robin scheduling(RS) and multiuser scheduling(MS) with the aid of a TS-based STAR-FC-RIS. Furthermore, we derive closed-form expressions of the sensing outage probability, communications outage probability(COP), and communications intercept probability, where an average of the three probabilities is exploited to obtain an optimized time allocation(OTA) of the *** results verify that the STAR-FCR-MS scheme outperforms the STAR-FCR-RS scheme in terms of sensing reliability and communications security. Moreover, an OTA remarkably enhances the overall performance of the STAR-FCR schemes of ISAMC systems.

关键词： simultaneous-transmitting-and-reflecting reconfigurable intelligent surface (RIS) fully-connected beyond-diagonal RIS integrated sensing and communications multiuser scheduling security

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Pricing Policy for a Dynamic Spectrum Allocation Scheme with Batch Requests and Impatient Packets in Cognitive Radio networks

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Journal of Systems Science and Systems Engineering 2022年第2期31卷 133-149页

作者： Haixing Wu Shunfu Jin Wuyi Yue School of Information Science and Engineering Yanshan UniversityQinhuangdao 066004China Key Laboratory for Computer Virtual Technology and System Integration of Hebei Province Yanshan UniversityQinhuangdao 066004China Department of Intelligence and Informatics Konan UniversityKobe 658-8501Japan

In cognitive radio networks(CRNs),multiple secondary users may send out requests simultaneously and one secondary user may send out multiple requests at one time,i.e.,request arrivals usually show an aggregate ***,a secondary user packet waiting in the buffer may leave the system due to impatience before it is transmitted,and this impatient behavior inevitably has an impact on the system *** to investigate the influence of the aggregate behavior of requests and the likelihood of impatience on a dynamic spectrum allocation scheme in CRNs,in this paper a batch arrival queueing model with possible reneging and potential transmission interruption is *** constructing a Markov chain and presenting a transition rate matrix,the steady-state distribution of the queueing model along with a dynamic spectrum allocation scheme is derived to analyze the stochastic behavior of the ***,some important performance measures such as the loss rate,the balk rate and the average delay of secondary user packets are ***,system experiments are carried out to show the change trends of the performance measures with respect to batch arrival rates of secondary user packets for different impatience parameters,different batch sizes of secondary user packets,and different arrival rates of primary user ***,a pricing policy for secondary users is presented and the dynamic spectrum allocation scheme is socially optimized.

关键词： Cognitive radio networks dynamic spectrum scheme batch arrival impatient packets Markov chain social optimization

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Distance estimation by constructing the virtual ruler in anisotropic sensor networks

Distance estimation by constructing the virtual ruler in ani...

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IEEE INFOCOM 2010

作者： Wang, Yun Li, Kai Wu, Jie School of Computer Science and Engineering Southeast University Key Lab. of Computer Network and Information Integration Nanjing 210096 China Department of Computer and Information Sciences Temple University Philadelphia PA 119122 United States

ISBN: (纸本)9781424458363

Distance estimation is fundamental for many functionalities of wireless sensor networks and has been studied intensively in recent years. A critical challenge in distance estimation is handling anisotropic problems in sensor networks. Compared with isotropic networks, anisotropic networks are more intractable in that their properties vary according to the directions of measurement. Anisotropic properties result from various factors, such as geographic shapes, irregular radio patterns, node densities, and impacts from obstacles. In this paper, we study the problem of measuring irregularity of sensor networks and evaluating its impact on distance estimation. In particular, we establish a new metric to measure irregularity along a path in sensor networks, and identify turning nodes where a considered path is inflected. Furthermore, we develop an approach to construct a virtual ruler for distance estimation between any pair of sensor nodes. The construction of a virtual ruler is carried out according to distance measurements among beacon nodes. However, it does not require beacon nodes to be deployed uniformly throughout sensor networks. Compared with existing methods, our approach neither assumes global knowledge of boundary recognition nor relies on uniform distribution of beacon nodes. Therefore, this approach is robust and applicable in practical environments. Simulation results show that our approach outperforms some previous methods, such as DV-Distance and PDM. ©2010 IEEE.

关键词： Anisotropy

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Some notes on password authenticated key exchange based on RSA

Some notes on password authenticated key exchange based on R...

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2009 International Conference on Computational Intelligence and Security, CIS 2009

作者： Tan, Shichong Zhu, Hui Wang, Yumin Ministry of Education Key Laboratory of Computer Network and Information Security Xidian University Xi'an 710071 China

ISBN: (纸本)9780769539317

Password authenticated key exchange protocols allow two entities who only share a humanmemorable password to authenticate each other and agree on a session key between themselves. This paper surveys the state of research on password authenticated key exchange based on RSA. We point out the subtleties in designing such schemes, and summarize some facts from number theory which are widely used to analyze these schemes. Some important password authenticated key exchange schemes based on RSA are reviewed. Finally, we discuss some interesting problems concerning with practical and theoretical aspects of password authenticated key exchange based on RSA. © 2009 Crown Copyright.

关键词： Number theory

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Dust:Real-Time Code Offloading System for Wearable Computing

Dust:Real-Time Code Offloading System for Wearable Computing

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IEEE Global Communications Conference

作者： Di Huang Luning Yang Sanfeng Zhang Key Laboratory of Computer Network and Information Integration (Southeast University) Nanjing University

ISBN: (纸本)9781479959532

Runtime performance seriously bothers application developers and users for wearable devices such as Apple Watch and Google Glass. To ease such pains, one approach is to transplant the computation to the cloud, known as cloud offloading. This paradigm works well when the Internet is accessible. Another solution, known as device-to-device (D2D) offloading, is to utilize nearby devices for computation offloading. In this paper, propose the Dust, a D2D code offloading prototype for wearable computing. To our best knowledge, Dust is the first code offloading system for wearable computing with an implementation on Google Glass. Dust includes a programmer friendly framework based on Java annotation, a lightweight offloading service, and a runtime task scheduler to make offloading decisions. Extensive experiments demonstrate that Dust achieves real-time performance with speedup of 6.1X.

关键词： Wearable computers UNLOADING CLOUDS Clouds DIRT application developer Speeding

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