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IEEE International Conference on Cloud computing technology and Science (CloudCom)

作者： Yanjiang Yang Haibing Lu Jian Weng Institute for Infocomm Research Singapore Department of Operations Management and Information Systems The Leavey School of Business Santa Clara University USA State Key Laboratory of Networking and Switching Technology Beijing University of Posts and Telecommunications China Department of Computer Science and Emergency Technology Research Center of Risk Department of Computer Science and 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

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.

关键词： Encryption Indexes keyword search Cloud computing

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Optimal aggregation of interval numbers based on genetic algorithm in group decision

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Journal of Information and Computational Science 2011年第5期8卷 842-849页

作者： Kang, Bingyi Zhang, Yajuan Deng, Xinyang Wu, Jiyi Sun, Xiaohong Li, Ya Deng, Yong College of Computer and Information Sciences Southwest University Chongqing 400715 China Hangzhou Key Lab of E-Business and Information Security Hangzhou Normal University Hangzhou 310036 China College of Food Science and Technology Shanghai Ocean University 999 Hucheng Huan Road Shanghai 201306 China Key Subject Laboratory of National Defense for Radioactive Waste and Environmental Security Southwest University of Science and Technology Mianyang 621010 China Key Laboratory of Intelligent Computing and Information Processing of Ministry of Education Xiangtan University Xiangtan Hunan 411105 China School of Electronics and Information Technology Shanghai Jiaotong University Shanghai 200240 China

A group of decision-makers may differ in their choice of alternatives while making a decision. As a result, how to aggregate opinions of different experts is still an open issue. Due to the uncertainty in the process of decision making, some mathematic tools such as fuzzy sets theory and evidence theory, are used to model uncertain information. In this paper, the experts' opinions are represented by interval numbers. A new optimal aggregation method to combine interval data is proposed based on genetic algorithm. The new method can deal with experts' opinions in an efficient manner. A numerical example on group decision making under uncertain environment is used to illustrate the efficiency of our proposed method. Copyright © 2011 Binary Information Press.

关键词： Genetic algorithms

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An anonymity and authentication mechanism for internet of things

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Journal of Convergence Information technology 2011年第3期6卷 98-105页

作者： Wang, Xiaoliang Sun, Xingming Yang, Hengfu Shah, Saeed Arif College of Information Engineering Xiangtan University Xiangtan 411105 China Department of Computer Science and Technology Nanjing University of Information Science and Technology Nanjin 210044 China Department of Information Science and Engineering Hunan First Normal University Changsha 410205 China Hunan Provincial Key Laboratory of Network and Information Security Hunan University Changsha 410082 China

Authentication has received increasing attention in the literatures of Internet of Things. At the same time, numerous concerns have been raised about the issue of anonymity due to users' awareness of their privacy nowadays. How to achieve trade-off between anonymity and certification simultaneously? In this paper, we propose a security architecture to ensure anonymity and certification for Internet of Things. We use pseudonym and threshold secret sharing approach to resolve conflict between anonymity and certification. Moreover, the implementation of Bloom filter offers security authentication for remote command. security analysis shows that the proposed mechanism can perfectly achieve tradeoff between anonymity, certification, and also resist impersonation, tamper as well as compromise attacks.

关键词： Internet of things

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SWP2P: P2P anonymous trace system based on superposition watermarking

International Journal of Digital Content Technology and its ...

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International Journal of Digital Content technology and its Applications 2011年第8期5卷 116-126页

A lot of attention has been paid to anonymity due to the users' privacy protection. While peer-topeer (P2P) networks need anonymity capacity, the authority also requires partner traceability to prevent anonymous abuse. So there is a challenge to harmonize the dilemma between the anonymity and authentication in P2P networks. Few P2P protocol provides complete anonymity as well as traceability. In this paper, we propose a security mechanism to ensure anonymity for honest peers and traceability for misbehaving peers in P2P systems. We utilize superposition watermarking based anonymity trace scheme to resolve the conflicts between traceability and anonymity. This scheme uses information processing technology similar to CDMA to superpose path information. security analysis and simulation result show that the superposition watermarking based P2P anonymity trace scheme (SWP2P) can attain tradeoff between anonymity and traceability perfectly.

关键词： Watermarking

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Research on Auto-generation of Operation Order for Distribution network

Research on Auto-generation of Operation Order for Distribut...

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The Second International Conference on High Performance networking, computing,and Communication Systems（ICHCC 2011）

作者： Yanwei Zheng Qingdong Meng Xuejun Lv Zhiquan Feng School of Information Science and Engineering University of Jinan Shandong Provincial Key Laboratory of Network based Intelligent Computing University of Jinan Department of Production Technology Yanggu Power Supply Corporation Department of City Power Supply Linyi Power Supply Corporation

To meet the requirements of operation orders auto-generation, a topology information data structure is designedAbove this, several algorithms are proposed, which support to generate operation orders for the tasks of cell maintenance, cell transmission, full circuitry maintenance, range of circuitry maintenance, and switch load algorithmsThese algorithms can use in the distribution networkThe auto-generation only accords the topology information that distilled from the graphicIt is easily use for the maintain personnel.

关键词： Auto-generation,Operation order,Distribution network,topology information

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Quantum broadcast communication with authentication

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Chinese Physics B 2010年第7期19卷 63-67页

作者：杨宇光王叶红温巧燕 College of Computer Science and Technology Beijing University of Technology State Key Laboratory of Information Security (Graduate University of Chinese Academy of Sciences) State Key Laboratory of Integrated Services Network Xidian University State Key Laboratory of Networking and Switching Technology Beijing University of Posts and Telecommunications

Two simple quantum broadcast communication schemes are proposed. A central party can broadcast his secret message to all the legitimate receivers simultaneously. Compared with the three schemes proposed recently （Wang et al. 2007 Chin. Phys. 16 1868）, the proposed schemes have the advantages of consuming fewer quantum and classical resources, lessening the difficulty and intensity of necessary operations, and having higher efficiency.

关键词： quantum broadcast communication authentication quantum secure direct communication

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A Distributed Intrusion Detection System against flooding Denial of Services attacks

A Distributed Intrusion Detection System against flooding De...

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International Conference on Advanced Communication technology (ICACT)

作者： Xie Chuiyi Zhang Yizhi Bai Yuan Luo Shuoshan Xu Qin School of Mathematics and Information Science ShaoGuan University Guangdong China Information Security Center Beijing University of Posts and Telecommunications Beijing China School of Electronics & Information Engineering Liaoning University of Technology China Tianjin Key Laboratory of Intelligence Computing and Novel Software Technology Tianjin University of Technology Tianjin China Beijing Safe-Code Technology Company Limited China

A DIDS(Distributed Intrusion Detection System) named as F-DIDS is built to defend against flooding DoS(Denial of Services) attacks in the paper. F-DIDS is composed of F-IDSes which are settled in nodes who need to be protected. F-DIDS is a complete DIDS, in which each node with F-IDS can be the detection centre. Due to no central node, single failure can be avoided in F-DIDS. In F-DIDS, Traffic tables help to build up traffic matrixes. By analyzing traffic matrixes, flooding DoS attacks could be detected and three normal flooding DoS attacks are classified. Local and global communication methods are proposed to reduce the overhead brought from fully distributed architecture. The simulation results and performance analysis show that F-DIDS works effectively.

关键词： Floods Global communication Computer crime Intrusion detection Distributed databases Intellectual property Computer hacking

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Determination of relative significance factor of impact categories based on fuzzy multiattribute decision-making method

Determination of relative significance factor of impact cate...

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Chinese Control and Decision Conference, CCDC

作者： Xinyang Deng Yajuan Zhang Bingyi Kang Jiyi Wu Xiaohong Sun Yong Deng School of Computer and Information Sciences Southwest University Chongqing China Hangzhou Key Laboratory of E-Business and Information Security Hangzhou Normal University Hangzhou Zhejiang China College of Food Science and Technology Shanghai Ocean University Shanghai China Laboratory of Intelligent Computing & Information Processing of Ministry of Education Xiangtan University Xiangtan Hunan China School of Electronics & Information Technology Shanghai Jiaotong University Shanghai China Laboratory of National defense for Radioactive Waste and Environmental Security Southwest University of Science and Technology Mianyang China

A relative significance factor of an impact category is the external weight of the impact category and plays an important role in life cycle assessment(LCA). Many multiattribute decision-making (MADM) methods such as analytical hierarchy process(AHP), the rank-order centroid method and the fuzzy method are proposed to determine the relative significance factor of an impact category. However, in previous research, it is shown that, the AHP approach is difficult for experts rendering consistent judgment when the number of pairwise comparisons increases, the rank-order method has some insurmountable shortcomings, the key issue to use fuzzy set theory is its complexity. In order to address this problem, a new simple and efficient method is proposed to determine relative significance factor in a more efficient manner. An example to determine relative significance factor of impact categories is shown to illustrate the efficiency of the proposed method.

关键词： Decision making Educational institutions Complexity theory Pragmatics Uncertainty Fuzzy set theory Fuzzy sets

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Scalable Arbitrated Quantum Signature of Classical Messages with Multi-Signers

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Communications in Theoretical Physics 2010年第7期54卷 84-88页

作者：杨宇光王园腾义伟柴海平温巧燕 College of Computer Science and Technology Beijing University of Technology State Key Laboratory of Information Security Graduate University of Chinese Academy of Sciences State Key Laboratory of Integrated Services Network Xidian University State Key Laboratory of Networking and Switching Technology Beijing University of Posts and Telecommunications

Unconditionally secure signature is an important part of quantum cryptography. Usually, a signature scheme only provides an environment for a single signer. Nevertheless, in real applications, many signers may collaboratively send a message to the verifier and convince the verifier that the message is actually transmitted by them. In this paper, we give a scalable arbitrated signature protocol of classical proved to be secure even with a compromised arbitrator. messages with multi-signers. Its security is analyzed and proved to be secure even with a compromised arbitrator.

关键词： arbitrated signature quantum signature quantum cryptography

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From the modern Web applications to the multi-tenant SaaS solution

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Tongxin Xuebao/Journal on Communications 2011年第9 A期32卷 133-138页

作者： Ma, Kun Yang, Bo Chen, Zhen-Xiang Ma, Bing-Xian Li, Qing-Zhong School of Computer Science and Technology Shandong University Jinan 250101 China Shandong Provincial Key Laboratory of Network Based Intelligent Computing University of Jinan Jinan 250022 China

Migrating existing Web applications toward SaaS (software-as-a-service) applications can reuse the legacy software assets and cut down the re-development cost and risk. However, it lacked generic migration approaches and tools. A generic approach was proposed to quickly enable existing Web applications to be multi-tenant based on the data middleware. It introduced the multi-tenancy at a minimum revision of the original application. This approach is transparent and loosely coupled for the application layer.

关键词： Web services

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