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A wireless secret key generation method based on Chinese remainder theorem in FDD systems

Science China(Information Sciences) 2012年第7期55卷 1605-1616页

作者： WANG WenJie 1,JIANG HongYan 1 ,XIA XiangGen 2,3 ,MU PengCheng 1 & YIN QinYe 1 1 Ministry of Education Key lab for Intelligent networks and Network Security,Xi’an Jiaotong University,Xi’an 710049,China 2 Electrical and computer engineering,University of Delaware,Newark,DE 19716,USA 3 Chonbuk National University,Jeonju,South Korea 1. Ministry of Education Key Lab for Intelligent Networks and Network Security Xi’an Jiaotong University Xi’an 710049 China2. Electrical and Computer Engineering University of Delaware Newark DE 19716 USA3. Chonbuk National University Jeonju South Korea

The wireless physical channel parameters are recently used to provide secret ***,the key generation usually suffers from the quantization errors due to the noise,which decreases the key agreement ratio (KAR) between authorized *** existing approaches achieve high KAR by discarding some channel parameters which may lower the key generation efficiency and therefore lower the encryption *** the frequency-division duplex (FDD) systems,the number of reciprocal parameters,such as the multipath angle and delay,is *** how to find a quantization method with high KAR and encryption strength is one of the major problems for secret key generation in FDD *** this paper,a robust quantization scheme based on grouping and shifting is proposed,in which all the available parameters are used for key *** addition,a key mapping method with error correction based on Chinese remainder theorem (CRT) is proposed to further improve the KAR *** demonstrate the effectiveness of the proposed method.

关键词： wireless communication security secret key generation FDD CRT angle and delay estimation

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A general sharing model based on proxy re-encryption

A general sharing model based on proxy re-encryption

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7th International Conference on Intelligent Information Hiding and Multimedia Signal Processing, IIHMSP 2011

作者： Ma, Guojun Pei, Qingqi Wang, Yuchen Jiang, Xiaohong State Key Laboratory of Integrated Services Networks Xidian University Xi'an China School of Electronic Engineering University of Electronic Science and Technology of China Chengdu China Key Lab. of Computer Networks and Information Security Ministry of Education Xidian University Xi'an China

ISBN: (纸本)9780769545172

Content sharing is one of the most significant issues of Digital Rights Management (abbr. DRM). Various schemes for content sharing have been presented in the past years. However, the main goals of these schemes are to solve portability problems instead of rational sharing between different users who are not family members. In this work, we propose an initial step toward this rational sharing and present a general sharing model based on proxy re-encryption. Our model can support the flexible sharing mechanism, with which the user can choose any of the purchased content to share with any legal device, and the content provider can know and limit the number of sharing devices to achieve some novel DRM policies such as pay-per-sharing. To our best knowledge, our sharing model is the first model for content sharing between different users' devices who are not family members using proxy re-encryption. With rational applications, our model can benefit for both the user and content provider to achieve win-win development. © 2011 IEEE.

关键词： Cryptography

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Incentive-compatible caching and peering in data-oriented networks 08

Incentive-compatible caching and peering in data-oriented ne...

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2008 ACM CoNEXT Conference - 4th International Conference on Emerging Networking EXperiments and Technologies, CoNEXT '08

作者： Rajahalme, Jarno Särelä, Mikko Nikander, Pekka Tarkoma, Sasu Nokia Siemens Networks Ericsson Research Nomadic Lab. Canada Helsinki Institute for Information Technology HIIT Finland Helsinki University of Technology Computer Science and Engineering Dept. Finland

ISBN: (纸本)9781605582108

Several new, data-oriented internetworking architectures have been proposed recently. However, the practical deployability of such designs is an open question. In this paper, we consider data-oriented network designs in the light of the policy and incentive structures of the present internetworking economy. A main observation of our work is that none of the present proposals is both policy-compliant and incentivecompatible with the current internetworking market, which makes their deployment very challenging if not impossible. This difficulty stems from the unfounded implicit assumption that data-oriented routing policies directly reflect the underlying packet-level inter-domain policies. We find that to enable the more effective network utilization promised by data-oriented networking, essential caching incentives need to exist, and that data-oriented peering needs be considered separately from peering for packet forwarding.

关键词： Network architecture

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Demo abstract: Operating a sensor network at 3500 m above sea level

Demo abstract: Operating a sensor network at 3500 m above se...

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2009 International Conference on Information Processing in Sensor networks, IPSN 2009

作者： Beutel, Jan Gruber, Stephan Hasler, Andreas Lim, Roman Meier, Andreas Plessl, Christian Talzi, Igor Thiele, Lothar Tschudin, Christian Woehrle, Matthias Yuecel, Mustafa Computer Engineering and Networks Lab. ETH Zurich Zurich Switzerland Physical Geography Division Department of Geography University of Zurich Switzerland Paderborn Center for Parallel Computing University of Paderborn Germany Computer Science Department University of Basel Switzerland

ISBN: (纸本)9781424451081

Sensor networks deployed in remote locations require easy to use but also extremely expressive tools for reliable operation. The PermaSense project has developed a platform based on a number of proven COTS components and integrated with the GSN based data backend. All tools are accessible from a single location in a web browser. This demo will present the monitoring and control tools in live operation with deployments on real field sites in the Swiss Alps.

关键词： Sensor networks

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Flocklab: A testbed for distributed, synchronized tracing and profiling of wireless embedded systems

FlockLab: A testbed for distributed, synchronized tracing an...

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International Symposium on Information Processing in Sensor networks (IPSN)

作者： Roman Lim Federico Ferrari Marco Zimmerling Christoph Walser Philipp Sommer Jan Beutel Computer Engineering and Networks Laboratory Zurich Switzerland Autonomous Systems Lab Australia

Testbeds are indispensable for debugging and evaluating wireless embedded systems. While existing testbeds provide ample opportunities for realistic, large-scale experiments, they are limited in their ability to closely observe and control the distributed operation of resource-constrained nodes-access to the nodes is restricted to the serial port. This paper presents Flocklab, a testbed that overcomes this limitation by allowing multiple services to run simultaneously and synchronously against all nodes under test in addition to the traditional serial port service: tracing of GPIO pins to record logical events occurring on a node, actuation of GPIO pins to trigger actions on a node, and high-resolution power profiling. Flocklab's accurate timing information in the low microsecond range enables logical events to be correlated with power samples, thus providing a previously unattained level of visibility into the distributed behavior of wireless embedded systems. In this paper, we describe Flocklab's design, benchmark its performance, and demonstrate its capabilities through several real-world test cases.

关键词： Observers Servers Power measurement Synchronization Accuracy Pins

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Centromere Landscapes Resolved from Hundreds of Human Genomes

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Genomics, Proteomics & Bioinformatics 2024年第5期22卷 61-71页

作者： Shenghan Gao Yimeng Zhang Stephen J. Bush Bo Wang Xiaofei Yang Kai Ye School of Automation Science and Engineering Faculty of Electronic and Information EngineeringXi'an Jiaotong UniversityXi'an 710049China School of Computer Science and Technology Faculty of Electronic and Information EngineeringXi'an Jiaotong UniversityXi'an 710049China MOE Key Lab for Intelligent Networks&Networks Security Faculty of Electronic and Information EngineeringXi'an Jiaotong UniversityXi'an 710049China Center for Mathematical Medical The First Affiliated HospitalXi'an Jiaotong UniversityXi'an 710061China School of Life Science and Technology Xi'an Jiaotong UniversityXi'an 710049China Faculty of Science Leiden UniversityLeiden 2311 EZThe Netherlands

High-fidelity(HiFi)sequencing has facilitated the assembly and analysis of the most repetitive region of the genome,the ***,our current understanding of human centromeres is based on a relatively small number of telomere-to-telomere assemblies,which have not yet captured its full *** this study,we investigated the genomic diversity of human centromere higher order repeats(HORs)via both HiFi reads and haplotype-resolved assemblies from hundreds of samples drawn from ongoing pangenome-sequencing projects and reprocessed them via a novel HOR annotation pipeline,*** used this wealth of data to provide a global survey of the centromeric HOR landscape;in particular,we found that 23 HORs presented significant copy number variability between *** detected three centromere genotypes with unbalanced population frequencies on chromosomes 5,8,and *** inter-assembly comparison of HOR loci further revealed that while HOR array structures are diverse,they nevertheless tend to form a number of specific landscapes,each exhibiting different levels of HOR subunit expansion and possibly reflecting a cyclical evolutionary transition from homogeneous to nested structures and back.

关键词： Centromere sequence Genome evolution High-fidelity sequencing technology Higher order repeat annotation Human population

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Magnetically induced simultaneous slow and fast light by phase control

Magnetically induced simultaneous slow and fast light by pha...

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Slow and Fast Light, Slow_Fast 2011

作者： Luo, Bin Guo, Hong CREAM Group State Key Lab. of Advanced Optical Communication Systems and Networks Inst. of Quantum Electronics School of Electronics Engineering and Computer Science Peking University Beijing 100871 China

A-type atom coupled by additional driving light and radio frequency (RF) field can generate controllable simultaneous slow and fast light at two frequencies. Distortions by radiative dampings are discussed and compens... 详细信息

ISBN: (纸本)9781557529138

关键词： Slow light

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An all-normal-dispersion Yb-doped fiber laser without the spectral filtering

An all-normal-dispersion Yb-doped fiber laser without the sp...

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Advanced Solid-State Photonics, ASSP 2008

作者： Zhou, Chun Li, Peng Dai, Yongheng Zhang, Zhigang Institute of Quantum Electronics School of Electronics Engineering and Computer Science State Key Lab. of Advanced Optical Communication System and Networks University of Beijing 5 Yiheyuan Rd Beijing 100871 China

We demonstrated a simple all-normal-dispersion Yb-doped femtosecond fiber laser, which delivers a pulse with 8.9 nJ and 33 MHz. After the extracavity compression with a grating pair, the pulse was compressed to 210 fs... 详细信息

ISBN: (纸本)1557528500

关键词： Fiber lasers

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Design of networked visual monitoring systems

Design of networked visual monitoring systems

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IEEE International Symposium on Circuits and Systems (ISCAS)

作者： Chin-Hwa Kuo Tay-Shen Wang Computer and Networks (CAN) Lab Department of Computer Science and Information Engineering Tamkang University Tamsui Taiwan

ISBN: (纸本)0780354826

Reports on the design and implementation of a networked visual monitoring system for surveillance. Instead of the usual periodic monitoring, the system has an auto-tracking feature which captures the important characteristics of intruders. We integrate two schemes, namely, image segmentation and histogram comparison, to accomplish the auto-tracking feature. The developed tracking scheme is able to segment and track moving objects from the background in real time. The tracked object information is used to guide the motion of the tracking camera to track the intruders and then to take a series of photographs. In multiple object tracking, we have developed a multiple objects tracking scheme, based on object color histogram comparison, to overcome object occlusion and disocclusion issues. To achieve efficient transmission and storage, the captured video is compressed in H.263 format. Query based on time as well as events are provided. Users can access the system from web browsers to view the monitoring site or manipulate the tracking camera on the Internet. These features are of importance and value to surveillance.

关键词： Cameras Tracking Voice mail Histograms Remote monitoring computerized monitoring Real time systems Surveillance Image segmentation Object segmentation

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A practical local hacking scheme on device-independent bell test based quantum randomness expansion

A practical local hacking scheme on device-independent bell ...

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Frontiers in Optics, FIO 2012

作者： Li, Junhui Yu, Quanfu Liu, Yu Guo, Hong CREAM Group State Key Lab. of Advanced Optical Communication Systems and Networks Inst. of Quantum Electronics School of Electronics Engineering and Computer Science Peking University Beijing 100871 China

Violation of Bell inequality cannot guarantee non-locality, thus an applicable hacking scheme on device-independent Bell test based quantum randomness expansion is given, together with a more secure upper bound on gen... 详细信息

ISBN: (纸本)9781557529565

关键词： Personal computing

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