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World Congress on Intelligent Control and Automation (WCICA)

作者： X.-S. Dong Gang Xiong Dong Fan F.-H. Zhu Li Xie Dongguan Research Institute of CASIA Cloud Computing Industrial Technology Innovation and Incubation Center Chinese Academy of Sciences Beijing China Dongguan Research Institute of CASIA Cloud Computing Industrial Technology Innovation and Incubation Center Chinese Academy of Sciences Dongguan China Dongguan Research Institute of CASIA Cloud Computing Industrial Technology Innovation and Incubation Center Chinese Academy of Sciences 523808 China Institute of Automation Chinese Academy of Sciences Beijing Beijing CN Zhejiang Provincial Key Laboratory of Information Network Technology Department of information Science and Electronic Engineering University of Zhejiang Hangzhou China

ISBN: (纸本)9781467313971

Bus Rapid Transit (BRT) is an effective way to improve urban traffic status. But, because of its complexity, it is difficult in its operation management and scheduling. In this article, based on ACP approach, Parallel BRT System is constructed, which can detect real-time passenger flow at stations, traffic flow at stations and intersections and queuing length of vehicles on the road; to provide short-term passenger and traffic saturation prediction in order to timely arrange transportation management and relieve congestion; to assess, improve and optimize the emergency management of holidays, events, accidents and other emergencies; to improve the quality of real-time scheduling functions based on the measurement results detected from videos, and so on. This system has been applied in Guangzhou Zhongshan Avenue BRT, which was applied for BRT's monitoring, warning, forecasting, emergency management, real-time scheduling and other needs, to guarantee BRT's smooth, safety, efficiency and reliability.

关键词： Job shop scheduling Real-time systems Global Positioning System Automation Transportation Intelligent control Laboratories

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Image perceptual hash algorithm based on target character

Image perceptual hash algorithm based on target character

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2011 IEEE 13th International Conference on Communication technology, ICCT 2011

作者： Zhang, Bin Xin, Yang Niu, Xin-Xin Key Laboratory of Network and Information Attack and Defence Technology of MOE Beijing University of Posts and Telecommunications Beijing 100086 China China Information Security Certification Center Beijing 100020 China Bejing Safe-Code Technology Co. Ltd. Beijing 100086 China

ISBN: (纸本)9781612843070

This paper proposed a perceptual hashing algorithm based on the image shape target Using the Hu invariant moments, the scheme extract the image characters. Then, calculate the weighted average of the Hu invariant moments of the image and the normal processed image. Select five invariant moments which are good at differentiating normal image processing from malicious attacks to the hash. In authentication period, calculate the distance of two hash values to judge two images whether match or not. Finally, experimental simulations and theoretical analysis are used to demonstrate the effectiveness of this algorithm. © 2011 IEEE.

关键词： Authentication

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Runtime-based boot components re-measurement scheme for trusted platform

Runtime-based boot components re-measurement scheme for trus...

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作者： Weiping, Peng Yajian, Zhou Cong, Wang Yixian, Yang Key Laboratory of Network and Information Attack and Defence Technology of MOE Beijing University of Posts and Telecommunications Beijing 100876 China School of Computer Science and Technology Henan Polytechnic University Jiaozuo Henan 454001 China Information Security Center State Key Laboratory of Networking and Switching Technology Beijing University of Posts and Telecommunications Beijing 100876 China National Engineering Laboratory for Disaster Backup and Recovery Beijing University of Posts and Telecommunications Beijing 100876 China

ISBN: (纸本)9783642251849

Integrity measurement is just one of the most important features in a trusted computing platform to provide evidence of platform configuration and behavior. Each set of software instructions (binary code) is measured and recorded before it is executed. Especially, all of boot components which be recorded in pre-boot stage can't be re-measured until the platform is rebooted. However, the reality is that many components belong to pre-boot stage, such as BIOS, Boot Loader and MBR, are easily modified or updated in runtime environment. If these updated results of components are treated as configuration requirements for a remote server-side to verify the access request, the remote network access connection will fail. It must restart the host to re-measure there components, and the result of the new measure is not guaranteed right absolutely. We solve this problem by embedding Integrity Measurement Agency Component (IMAC) which has the capability of monitoring transformation, verifying credibility, updating Platform Configuration Registers and recording integrity measurement logs in Linux kernel. The result of performance analysis demonstrates that the method is feasible and credible. © 2011 Springer-Verlag Berlin Heidelberg.

关键词： Trusted computing

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computing parametric alignment of RNA structures:visualization and practice

Computing parametric alignment of RNA structures:visualizati...

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2011 International Conference on Future Computer Sciences and Application（ICFCSA 2011）

作者： Wangsen Feng Bei Zhang Lusheng Wang Key Laboratory of Network and Software Security Assurance of Ministry of Education Computing Center Beijing University Department of Computer Science City University of Hong Kong

Alignment of RNA structures is very important in biological *** to pair-wise sequence alignment,there is often disagreement about how to weight matches,mismatches,indels and gaps when comparing two RNA ***,we develop a visual tool for computing parametric alignment of two RNA *** this tool,users can see explicitly and completely the effect of parameter choices on the optimal alignments of RNA *** software is available for academic use（ http://***/wang/software/Para RNA/）.

关键词： parametric alignment,RNA structures

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Genetic Algorithm-Based Power Management in Cloud Platform

Genetic Algorithm-Based Power Management in Cloud Platform

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International Conference on Internet technology and Applications (iTAP)

作者： Zili Xiong Zhang Zhang Huafeng Kong Deqing Zou School of Computer Science and Technology Huazhong University of Science and Technology Wuhan China Key Laboratory of Information Network Security Ministry of Public Security Third Research Institute of Ministry of Public Security Shanghai China

Cloud computing is a novel computing pattern, and it can provide underlying hardware resource for cloud users on demand. Virtualization is the key technology of cloud computing, and it provides the technical support for cloud computing. In cloud platform, power management is an indispensable function of cloud system administration. Based on genetic algorithm, this paper proposes a power management method based on virtual cluster. The experiments on Xen platform prove the effectiveness of our method.

关键词： Genetic algorithms Entropy Cloud computing Quality of service security Presses Clustering algorithms

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An efficient data delivery mechanism by exploring multipath routes for wireless sensor networks

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Information technology Journal 2011年第7期10卷 1359-1366页

作者： Ruan, Zhiqiang Sun, Xingming Hunan Provincial Key Laboratory of Network and Information Security Hunan University Hunan Changsha 410082 China Jiangsu Engineering Center of Network Monitoring Nanjing University of Information Science and Technology China

This paper study the data delivery mechanisms that can with high probability thwarting node capture attacks in unattended or distributed wirelesssensor networks. Classic cryptographic approaches are vulnerable to such attacks, mainly due to their deterministic nature. Because once the adversarycompromises the sensor nodes, it can acquire the credential as well as the data collected and held by sensors. Furthermore, the adversary can easily insert bogus sensor readings or change the processing results and then use these keys to authenticate forged information. This study proposes and analyzes the application of Reed-Solomon (RS) codes to address the problem. In the proposed scheme, each sensor node encodes the original data into multiple redundancy data shares by applying predefined (n, k) RS codes and applies non-uniform allocation through multiple node-disjoint paths to the destination. Analysis and simulation results demonstrate that the proposed schemeis efficient and resilient against node capture attack. © 2011 Asian network for Scientific Information.

关键词： Sensor nodes

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Genetic algorithm-based power management in cloud platform

Genetic algorithm-based power management in cloud platform

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International Conference on Internet technology and Applications

作者： Xiong, Zili Zhang, Zhang Kong, Huafeng Zou, Deqing School of Computer Science and Technology Huazhong University of Science and Technology Wuhan 430074 China Key Laboratory of Information Network Security Ministry of Public Security Third Research Institute of Ministry of Public Security Shanghai 201204 China

ISBN: (纸本)9781424472550

关键词： Virtualization

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Multi-user private keyword search for cloud computing

Multi-user private keyword search for cloud computing

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2011 3rd IEEE International Conference on Cloud computing technology and Science, CloudCom 2011

作者： Yang, Yanjiang Lu, Haibing Weng, Jian Institute for Infocomm Research Singapore Singapore Dept. of Operations Management and Information Systems Leavey School of Business Santa Clara University United States Department of Computer Science Emergency Technology Research Center of Risk Evaluation and Prewarning on Public Network Security Jinan University Guangzhou China State Key Laboratory of Information Security Institute of Software Chinese Academy of Sciences China State Key Lab. of Networking and Switching Technology Beijing University of Posts and Telecommunications China

ISBN: (纸本)9780769546223

Enterprises outsourcing their databases to the cloud and authorizing multiple users for access represents a typical use scenario of cloud storage services. In such a case of database outsourcing, data encryption is a good approach enabling the data owner to retain its control over the outsourced data. Searchable encryption is a cryptographic primitive allowing for private keyword based search over the encrypted database. The above setting of enterprise outsourcing database to the cloud requires multi-user searchable encryption, whereas virtually all of the existing schemes consider the single-user setting. To bridge this gap, we are motivated to propose a practical multi-user searchable encryption scheme, which has a number of advantages over the known approaches. The associated model and security requirements are also formulated. We further discuss to extend our scheme in several ways so as to achieve different search capabilities. © 2011 IEEE.

关键词： Outsourcing

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S3: Smart selection of sampling function for passive network measurement

S3: Smart selection of sampling function for passive network...

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Conference on Local Computer networks (LCN)

作者： Xingyu Ma Chengchen Hu Junchen Jiang Jing Wang Tsinghua National Laboratory for Information Science and Technology Tsinghua University China MOE Key Laboratory for Intelligent Networks and Network Security Xi'an Jiaotong University China

Flow size statistics is a fundamental task of passive measurement. In order to bound the estimation error of passive measurement for both small and large flows, previous probabilistic counter updating algorithms used linear or nonlinear sampling function to automatically adjust the sampling rate. However, each of these methods employed a pre-set and fixed sampling function during the measurement period. As a result, the performance would vary for different flow distributions. In this paper, we propose a Smart Selection Sampling (S3) approach, which can tune the sampling function to reach a comparatively lower relative error. The key component of S3 is a heuristic algorithm leveraging the flow distribution information to determine a better sampling function so as to achieve better measurement accuracy. Experiments under real trace and synthetic traces demonstrate that S3 is more accurate than the previous work if given the same memory sizes to accommodate flow statistics counters.

关键词： Radiation detectors Size measurement Accuracy Estimation Algorithm design and analysis Internet

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Collaborative integrity verification in hybrid clouds

Collaborative integrity verification in hybrid clouds

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International Conference on Collaborative computing: networking, Applications and Worksharing (CollaborateCom)

作者： Yan Zhu Hongxin Hu Gail-Joon Ahn Yujing Han Shimin Chen Beijing Key Laboratory of Internet Security Technology Peking University Beijing China Laboratory of Security Engineering for Future Computing (SEFCOM) Arizona State University Tempe AZ USA Justitutc of Computer Science and Technology Peking University Beijing China

A hybrid cloud is a cloud computing environment in which an organization provides and manages some internal resources and the others provided externally. However, this new environment could bring irretrievable losses to the clients due to a lack of integrity verification mechanism for distributed data outsourcing. In this paper, we address the construction of a collaborative integrity verification mechanism in hybrid clouds to support the scalable service and data migration, in which we consider the existence of multiple cloud service providers to collaboratively store and maintain the clients' data. We propose a collaborative provable data possession scheme adopting the techniques of homomorphic verifiable responses and hash index hierarchy. In addition, we articulate the performance optimization mechanisms for our scheme and prove the security of our scheme based on multi-prover zero-knowledge proof system, which can satisfy the properties of completeness, knowledge soundness, and zero-knowledge. Our experiments also show that our proposed solution only incurs a small constant amount of communications overhead.

关键词： Indexes Usability

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