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IEEE Symposium on Web Society

作者： Guo, Qin Luo, Mingxing Li, Lixiang Wang, Licheng Yang, Yixian Information Security Center State Key Laboratory of Networking and Switching Technology Beijing University of Posts and Telecommunications Beijing 100876 China Key Laboratory of Network and Information Attack and Defence Technology of MOE 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)9781424463572

In this paper, we present a practical algorithm to construct the convolutional multicast network coding over any finite directed cyclic network. The dual line graph of a directed cyclic graph is considered as a system. By regarding the global encoding kernels in the original graph as the corresponding inputs or outputs of some subsystem and the local encoding kernels in original graph as gains of channels, we can construct the convolutional network code through randomly choosing the local encoding kernels of the directed cycles in networks. By using Mason formula, the construction becomes very efficient. © 2010 IEEE.

关键词： Network coding

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Comment on a novel non-interactive verifiable secret sharing scheme

Comment on a novel non-interactive verifiable secret sharing...

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2nd International Conference on Communication software and Networks, ICCSN 2010

作者： Wang, Feng Gu, Lize Zhou, Yousheng Yang, Yixian Zhou, Yajian Information Security Center State Key Laboratory of Networking and Switching Technology Beijing University of Posts and Telecommunications Beijing 100876 China Key Laboratory of Network and Information Attack and Defence Technology of MOE Beijing University of Posts and Telecommunications Beijing 100876 China National Engineering Laboratory for Disaster Backup and Recovery China Beijing University of Posts and Telecommunications Beijing 100876 China

ISBN: (纸本)9780769539614

In 2006, Jun et al presented a novel non-interactive verifiable secret sharing scheme constructed by Shamir's secret sharing scheme for secure multi-party communication protocol in distributed networks. In their scheme, the Dealer only publishes one commitment for verification. The efficiency of verification for each share doesn't fall as the augment of the threshold and the security of the verifiable secret sharing scheme is based on the intractability of computing discrete logarithm. So they demonstrated that their scheme can efficiently withstand not only the deceptive behavior between the Dealer and participants but among participants. In this paper, we analysis the security of their scheme and point out that their scheme couldn't resist the deceptive behavior like they claimed. © 2010 IEEE.

关键词： Multi-party communication Non-interactive Secret sharing Verifiable

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Research of an innovative P2P-based botnet

Research of an innovative P2P-based botnet

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2010 International Conference on Machine Vision and Human-Machine Interface, MVHI 2010

作者： Jian, Gao Zheng, Kang Feng Yang, Yi Xian Hu, Zheng Ming Information Security Center State Key Laboratory of Networking and Switching Technology Beijing University of Posts and Telecommunications BUPT Beijing China Key Laboratory of Network and Information Attack and Defence Technology of MOE Beijing University of Posts and Telecommunications BUPT Beijing China National Engineering Laboratory for Disaster Backup and Recovery Beijing University of Posts and Telecommunications BUPT Beijing China

ISBN: (纸本)9780769540092

The research recently focuses on the integration of peer-to-peer frame as incremental improvements to botnet. In hybrid P2P botnet, it is important to find a mechanism to select neighbor list for every super node, in order to improve stability of communication when some super nodes lose. At the same time, it needs to select high performance and nearest node as a super node, to provide command request and file transport for other ordinary nodes. In this paper, we propose a neighbor list selecting method based on Strongly Connected Graph and analysis a super node selecting mechanism based on AHP. Evaluation shows that this mechanism can increase coverage probability of commands and decrease average connection time (ACT) between super node and ordinary node. © 2010 IEEE.

关键词： Botnet

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Component monitoring of OSGi-based software

Component monitoring of OSGi-based software

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International Workshop on Cloud Services-Platform Accelerating E-Business

作者： Wang, Tao Zhou, Xiaowei Wei, Jun Zhang, Wenbo Zhu, Xin Technology Center of Software Engineering Institute of Software Chinese Academy of Sciences Beijing 100190 China State Key Laboratory of Computer Science Institute of Software Chinese Academy of Sciences Beijing 100190 China Graduate University Chinese Academy of Sciences Beijing 100049 China

ISBN: (纸本)9780769542270

OSGi is a widely used service-oriented platform which provides support for the development and execution of component-based e-business applications. The component monitoring of OSGi-based software is important to the software reliability analysis and abnormality diagnosis. However, current approaches not only bring significant overhead, but also lack interaction behavior analysis. This paper focuses on monitoring components from resource utilization and interaction behavior perspectives. We propose an approach to trace thread execution for updating the relationship between threads and bundles, so that the CPU and memory utilization of bundles are calculated, and the service invocation graph is updated at runtime. A prototype tool is implemented and applied in an application server OnceAS based on OSGi. The experiments using TPC-W benchmark validate our approach without significant resource and performance overhead. Furthermore, simulation results show that our approach is of high accuracy for monitoring CPU utilization of bundles. © 2010 IEEE.

关键词： software reliability

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Towards runtime plug-and-play software

Towards runtime plug-and-play software

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10th International Conference on Quality software, QSIC 2010

作者： Wang, Tao Zhou, Xiaowei Wei, Jun Zhang, Wenbo Technology Center of Software Engineering Institute of Software Chinese Academy of Sciences Beijing 100190 China State Key Laboratory of Computer Science Institute of Software Chinese Academy of Sciences Beijing 100190 China Graduate University Chinese Academy of Sciences Beijing 100049 China

ISBN: (纸本)9780769541310

As applications grow more and more complex, the current software faces a great challenge in dynamism. This paper proposes to modernize legacy software towards runtime plug-and-play architecture using service-oriented component model. Our object is to provide runtime plug-and-play feature for software to simplify development and adapt to changing execution environment. We propose a two-stage modernization approach and take OSGi as the foundation framework. After designing software architecture, modernization principles are discussed, and the presented approach is guided and validated by a case study involving the modernizing of a Java EE application server. © 2010 IEEE.

关键词： Modernization

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An adaptive fine-grained performance modeling approach for internetware 10

An adaptive fine-grained performance modeling approach for i...

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Proceedings of the Second Asia-Pacific Symposium on Internetware

作者： Huang, Xiang Wang, Wei Zhang, Wenbo Wei, Jun Huang, Tao Technology Center of Software Engineering Institute of Software Chinese Academy of Sciences Beijing 100190 China State Key Laboratory of Computer Science Institute of Software Chinese Academy of Sciences Beijing 100190 China Graduate University Chinese Academy of Sciences Beijing 100049 China

ISBN: (纸本)9781450306942

With the great success of internet technology, internetware has become one of the most important software paradigms. But the open, dynamic and uncertain network makes it difficult to guarantee the performance of internetwares. Feed forward control method has been proved to be an effective mechanism for performance guarantee in advance, but it is difficult to work well in such a dynamic environment, in which performance aspects are highly changeable because for the load fluctuation and software updates. In this paper, we proposed an adaptive performance modeling approach to adapt the environment and provide finegrained performance guarantee. In our approach, the service invocation sequences corresponding to the load of internetware are constructed adaptively. And the service time of each service, which is the most performance parameter of our performance tool, is accurately acquired through Kalman filter. © 2010 ACM.

关键词： Kalman filters

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A periodic integrity measurements authenticating scheme based on TNC architecture

A periodic integrity measurements authenticating scheme base...

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2010 6th International Conference on Wireless Communications, Networking and Mobile Computing, WiCOM 2010

作者： Yuqiong, Sun Xuelai, Wu Cheng, Song Yang, Xin Yixian, Yang Information Security Center State Key Laboratory of Networking and Switching Technology Beijing University of Posts and Telecommunications Beijing 100876 China Key Laboratory of Network and Information Attack and Defense Technology of MOE Beijing University of Posts and Telecommunications Beijing 100876 China National Engineering Laboratory for Disaster Backup and Recovery Beijing 100876 China Beijing University of Posts and Telecommunications Beijing 100876 China

ISBN: (纸本)9781424437092

In this paper, we present a periodic authentication scheme of integrity measurements based on TNC architecture. In TNC architecture, server authenticates security posture of endpoint before an endpoint is allowed to access the network. After connected, the endpoint will not be supervised any more. Our scheme is the first to extend this before-access authentication to all-time authentication over endpoints. In fact, we show that by our scheme, the security posture of endpoint would be always monitored therefore the security of network can be improved greatly by cutting off malicious endpoint's connection. We also optimize this scheme to limit its impact on network's performance. Results show that these optimizations make the scheme more efficient and the scheme achieves a desirable effect in practical network. © 2010 IEEE.

关键词： Authentication

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Nova: A robustness-oriented Byzantine Fault Tolerance protocol

Nova: A robustness-oriented Byzantine Fault Tolerance protoc...

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International Conference on Grid and Cloud Computing

作者： Pei, Xiang Wang, Yongjian Luan, Zhongzhi Sino-German Joint Software Institute School of Computer Science and Engineering Beihang University 100191 Beijing China Beijing Key Laboratory of Network Technology Beihang University 100191 Beijing China

ISBN: (纸本)9780769543130

With the increased complexity, malicious faults have become an important reasons that affect the reliability of the distributed system, especially the web-scale infrastructures, i.e. Amazon S3, Google AppEngine etc. Most such systems assume benign fault model which can't depict the malicious actions. The goal of Byzantine Fault Tolerance protocol (BFT for short) is to mask the malicious behaviors and it has been proved that some new proposed BFTs are suitable to support practical applications. But these BFTs still lack in robustness, a simple fault injection may cause significantly decrease in throughput or run in low throughput without violating the BFT safety property. We propose a new robustness-oriented BFT named Nova. Experiments show Nova has comparable throughput as PBFT in normal case and behave stably under the malicious attack. Compared with other BFTs, Nova can support practical applications more effectively. © 2010 IEEE.

关键词： Throughput

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Chaotic Control of Network Traffic

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China Communications 2010年第5期7卷 112-119页

作者： Yang Tan Guo Shize Jin Yuehui Cheng Shiduan School of Computer Science and Engineering University of Electronic Science and Technology of China Chengdu 611731 P. R. China State Key Laboratory of Networking and Switching Beijing University of Posts and Telecommunications Beijing 100876 P. R. China Information Security Center Beijing University of Posts and Telecommunications Beijing 100876 P. R. China

This paper presents a chaotic control method on network traffic. By this method, the chaotic network traffic can be controlled to pre-assigned equifibrium point according to chaotic prediction and the Largest Lyapunov Exponent （LLE） of the traffic on congested link is reduced, thereby the probability of traffic burst and network congestion can be reduced. Numerical examples show that this method is effective.

关键词： network traffic chaotic control Lyapunov exponent chaotic prediction

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Research on failure model of software reliability based on the least squares support vector regression machines and simulated annealing algorithm

Research on failure model of software reliability based on t...

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5th IEEE International Conference on Management of Innovation and technology, ICMIT2010

作者： Zhu, Xiaodong Xu, Renzuo Chen, Xi-Lun Chao, Bing State Key Laboratory of Software Engineering Wuhan University Wuhan China Hebei Maintenance Engineering Research Institute Hebei China Beijing Information Science and Technology University Computer College Beijing China

ISBN: (纸本)9781424465675

Building a software failure model (SFM) is an important means to compute the software reliability. While there are not enough faults data, the estimation for model parameters is not accurate, which would decrease the fitting precision. In addition, the estimation for parameters of complex models is very complicated. An SFM based on the least squares support vector regression machines (LSSVRM) could decrease the fitting error, and there are no parameters to estimate in that SFM. The LSSVRM optimized by simulated annealing algorithm (SA-LSSVRM) is introduced to overcome the problem of there being free parameters in LSSVRM to be modified manually. The SFM based on SA-LSSVGM could fit the faults data better, and the precision of software reliability could be improved. © 2010 IEEE.

关键词： software reliability

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