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

作者： Kaiyong Deng Ru Zhang Dongfang Zhang WenFeng Jiang Xinxin Niu Kaiyong Deng Ru Zhang Hong Guo Key Laboratory of network and information attack& defence technology of MOE Beijing University of Posts and Telecommunications Key Lab of Information Network Security of Ministry of Public Security

An algorithm of applying Bedford's law to detect credit fraud in e-commerce is proposed in the paper and the feasibility is *** weakness of the algorithm for detecting financial fraud via Benford correlation coefficients is analyzed and a new detection method for e-commerce fraud defined as credit algorithm based on Bedford ' s law is established,providing better performance of reliability and precision.

关键词： Bedford ' s Law credit fraud detection credit algorithm

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Conditions of parameter identification from time series

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Physical Review E 2011年第3期83卷 036202-036202页

作者： Haipeng Peng Lixiang Li Yixian Yang Fei Sun Information Security Center State Key Laboratory of Networking and Switching Technology Beijing University of Posts and Telecommunications P.O. Box 145 Beijing 100876 China Key Laboratory of Network and Information Attack and Defence Technology of MOE Beijing University of Posts and Telecommunications Beijing 100876 China and National Engineering Laboratory for Disaster Backup and Recovery Beijing University of Posts and Telecommunications Beijing 100876 China

We study the problem of synchronization-based parameters identification of dynamical systems from time series. Through theoretical analysis and numerical examples, we show that some recent research reports on this issue are not perfect or even incorrect. Long-time full rank and finite-time full rank conditions of Gram matrix are pointed out, which are sufficient for parameters identification of dynamical systems. The influence of additive noise on the proposed parameter identifier is also investigated. The mean filter is used to suppress the estimation fluctuation caused by the noise.

关键词： TIME series analysis SYNCHRONIZATION DYNAMICAL systems FLUCTUATIONS (Physics) NUMERICAL analysis

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A Privacy Preserving Handover Authentication Scheme for EAP-Based Wireless networks

A Privacy Preserving Handover Authentication Scheme for EAP-...

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2011 IEEE Global Telecommunications Conference - GLOBECOM 2011

作者： Qi Jing Yuqing Zhang Anmin Fu Xuefeng Liu Key Laboratory of Computer Networks and Information Security of Ministry of Education Xidian University Xi'an China National Computer Network Intrusion Protection Center GUCAS Beijing China

Extensible Authentication Protocol (EAP) is a framework which aims to provide a flexible authentication for wireless networks. Due to the involvement of an EAP server and several round trips between a mobile node (MN) and the EAP server, a full EAP authentication takes about 1000ms which is unacceptable in a handover process. This paper proposes a privacy preserving handover authentication scheme for EAP-based wireless networks. We use the proxy signature scheme to accomplish authentication between MN and an access point (AP) without involving the third party. The detailed security analysis shows that our scheme can achieve the privacy preserving and forward/backward security. In addition, we evaluate the latency performance of the proposed scheme by the analysis and simulation. The results demonstrate that our scheme is more efficient in terms of computation and communication overheads.

关键词： Manganese Authentication Privacy Servers Public key

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Efficient RFID authentication scheme with high security

Efficient RFID authentication scheme with high security

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International Conference on Communication Software and networks, ICCSN

作者： Shuai Shao Guoai Xu Yanfei Liu Key Laboratory of network and information attack & defence technology of MOE Beijing University of Posts and Telecommunications Beijing China First Research Institute of Ministry of Public Security Beijing China

With the spread of RFID technology, Lots of authentication schemes for RFID have been proposed to provide user privacy and security. However, most of these protocols are limited in scalability, in which the server's efficiency declines rapidly while the number of tags grows. In support of scalability, some efficient schemes are suggested recently. Unfortunately, these previous schemes have various shortcomings. This paper presents a new efficient RFID authentication scheme with strong security and privacy. The proposed scheme is suitable for managing a large number of tags, for taking constant time to authenticate a tag by using hash chain. Meanwhile, this scheme can resists tag information leakage, tag location tracking, backward traceability, forward traceability, replay attacks, denial of service attacks and other common attacks. The scheme also requires less tag-side computation than existing protocols and requires less communication.

关键词： Radiofrequency identification Cryptography Servers

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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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Feasibility of columnar jointed basalt used for high-arch dam foundation

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Journal of Rock Mechanics and Geotechnical Engineering 2011年第S1期3卷 461-468页

作者： Yunjie Wei1, Mo Xu2, Wenpei Wang1, Anchi Shi3, Mingfa Tang3, Zhiping Ye3 1 key laboratory of Urban security and Disaster Engineering of Ministry of Education, beijing University of technology, beijing, 100124, China 2 State key laboratory of Geohazard Prevention and Geoenvironment protection, Chengdu University of technology, Chengdu, 610059, China 3 East China Investigation and Design Institute, China Hydropower Engineering Consulting Group Corporation, Hangzhou, 310014, China Key Laboratory of Urban Security and Disaster Engineering of Ministry of Education Beijing University of Technology Beijing 100124 China State Key Laboratory of Geohazard Prevention and Geoenvironment Protection Chengdu University of Technology Chengdu 610059 China East China Investigation and Design Institute China Hydropower Engineering Consulting Group Corporation Hangzhou 310014 China

Columnar jointed basalt, with a lot of small-spacing structural planes and poor integrity, is a kind of fractured rock mass. Through comprehensive study of columnar joints shape, roughness of fracture surface and chemical composition of basalt, it is known that columnar joints of Baihetan dam area were formed as a result of cooling and shrinkage effects of magma. The columnar jointed basalt is mainly formed through chemical reaction of chlorite, kaolinite, epidote and tremolite, and the columnar joints mainly consist of chlorite according to slice identification and chemical analysis. Test results show that the columnar jointed basalt has high uniaxial compressive strength, low friction coefficient, and high cohesion, shear strength and deformation index. Meanwhile, the columnar jointed basalt is closely locked, and joint surfaces are well closed. The permeability of the rock is quite weak, and the P-wave velocity in the rock could get up to 5 000 m/s. All these show good rock properties. The columnar joints develop regularly, different from the general fractured rock masses. In summary, the columnar jointed basalt can be used directly as a foundation of dam.

关键词： columnar jointed basalt dam foundation Baihetan hydropower station in-situ shear test deformation test

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EKMP: An enhanced key management protocol for IEEE 802.16m

EKMP: An enhanced key management protocol for IEEE 802.16m

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IEEE Conference on Wireless Communications and networking

作者： Anmin Fu Yuqing Zhang Zhenchao Zhu Jingyu Feng Key Laboratory of Computer Networks and Information Security of Ministry of Education Xidian University Xi'an China National Computer Network Intrusion Protection Center Chinese Academy and Sciences Beijing China

Recently, IEEE 802.16m was submitted to the ITU and acknowledged as the candidate technology of the IMT-advanced standardization. In this paper, we point out several security issues, such as key agreement blocking and Denial of Service (DoS) attacks, of the key management protocol in IEEE 802.16m. To address the found security issues, we propose an enhanced key management protocol, named as EKMP, which extends the pairwise master key and adds the integrity protection to all key agreement messages. EKMP can not only provide advanced relay station access but also avoid key agreement blocking and DoS attacks. In particular, our scheme is provably secure in the Canetti-Krawczyk model. Furthermore, our theoretical analysis shows that EKMP is much more efficient in terms of communication overhead and memory requirement.

关键词： Protocols Authentication Computer crime Mobile communication Base stations IEEE 802.16 Standards

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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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2011 International Conference on Informatics,Cybernetics,and Computer Engineering(ICCE 2011)

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

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.

关键词： Trusted Computing Boot Components PCR Integrity measurement Agency Component

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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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Multi-User Private keyword Search for Cloud Computing

Multi-User Private Keyword Search for Cloud Computing

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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

关键词： Encryption Indexes keyword search Cloud computing

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