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International Conference on Network and System Security, NSS

作者： Hua Guo Xiyong Zhang Yi Mu Zhoujun Li School of Computer Science & Engineering Beihang University Beijing China Zhengzhou Information Science and Technology Institute Zhengzhou China CCISR School of Computer Science Software Engineering University of Wollongong NSW Australia

We propose an efficient certificateless public key encryption (CL-PKE) scheme which is provably secure against chosen ciphertext attacks without random oracles. Our scheme is more computationally efficient than the existing schemes and provides the shortest public key length compared to other existing CL-PKEs with random oracles. We also propose a practical self-generated-certificate encryption (SGC-PKE) scheme based on our CL-PKE scheme. One of merits of such cryptographic systems is that it can be applied to countermeasure "Denial-of-Decryption (DoD) Attacks" that is inherent in CL-PKE.

关键词： Public key Identity-based encryption Public key cryptography computer science Partial response channels Certification Gold computer security Information security software standards

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Loop-Free Forwarding Table Updates with Minimal Link Overflow

Loop-Free Forwarding Table Updates with Minimal Link Overflo...

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IEEE International Conference on Communications (ICC)

作者： L. Shi J. Fu X. Fu Institute of Computer Science University of Goettingen Germany Telecommunication Software & Systems Group (TSSG) Waterford Institute of Technology Ireland School of Electrical Engineering KTH Royal Institute of Technology Sweden

The forwarding paths in an IP network may change due to a link failure, network equipment maintenance, or reconfiguration of link weights. The forwarding tables in the routers need then to be updated. These updates may cause transient loops and link overflow, if they are not performed in an appropriate order. While existing proposals achieve loop-free updates, transient link overflow is still a problem during the updating process. In this paper, we present a method that compares the initial and final forwarding paths, and obtains the updatable nodes that do not cause any transient loop or link overflow. However, this goal is not always achievable, therefore, we propose an algorithm to update the forwarding tables that will refrain the link overflows to a minimal level. The performance study on a real topology with two setups confirms that our approach achieves smaller link overflow than by using a previously proposed approach.

关键词： Centralized control Telecommunication traffic Paper technology IP networks Topology Delay Routing Control systems Network servers Communications Society

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Enhancing cooperative behavior for online reputation systems by group selection

Enhancing cooperative behavior for online reputation systems...

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Symposia and Workshops on Ubiquitous, Autonomic and Trusted Computing in Conjunction with the UIC'09 and ATC'09 Conferences, UIC-ATC 2009

作者： Ren, Yizhi Li, Mingchu Cui, Yongrui Guo, Cheng Sakurai, Kouichi School of Software Dalian University of Technology Dalian 116621 China Dept. of Computer Science and Communication Engineering Kyushu University Hakozaki Fukuoka 812-81 Japan Institute of Systems Information Technologies KYUSHU 2-1-22 Momochihama Sawara-ku Fukuoka 814-0001 Japan

ISBN: (纸本)9780769537375

Reputation systems are very useful in large online communities in which users may frequently have the opportunity to interact with users with whom they have no prior experience. Recently, how to enhance the cooperative behaviors in the reputation system that has became to one of the key open issues. Research in the evolutionary game theory shows that the group selection or multilevel selection can favor the cooperation in the finite populations. Furthermore, Nowak et al., in [1], [2] give a fundamental condition for the evolution of cooperation by group *** on the above important result, we extend the group selection concept in evolutionary biology and propose a group-based mechanism to enhance cooperation for online reputation systems. © 2009 IEEE.

关键词： Game theory

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THE APPLICATION OF BINOCULAR RANGING IN THE TRAFFIC ACCIDENT PROCESSING

THE APPLICATION OF BINOCULAR RANGING IN THE TRAFFIC ACCIDENT...

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2009 International Conference on Machine Learning and Cybernetics(2009机器学习与控制论国际会议)

作者： MU LI ZHEN-ZHOU WANG JING-YUN WANG JIAO-MIN LIU Editorial Department of Academic Journal Hebei University of Science and TechnologyShijiazhuang 05 Institute of Information Science & Engineering Hebei University of Science and TechnologyShijiazhu School of Computer Science and Software Hebei University of Technology Tianjin 300130 China School of Computer Science and Software Hebei University of TechnologyTianjin 300130 China

Traffic accident scene processing is a significant content to traffic supervisory work. The development and application of photographic survey and the digital picture processing technology provide the powerful tool for solved this difficult problem. This article proposed applies binocular ranging to the traffic accident processes. We have priority introduced the technology of survey principle, image filtering and image match which used in this method.

关键词： Traffic accident processing Binocular ranging Image match Image filtering

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An MLP-based face authentication technique robust to orientation

An MLP-based face authentication technique robust to orienta...

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International Joint Conference on Neural Networks (IJCNN)

作者： Goutam Chakraborty Basabi Chakraborty Jagdish C. Patra Chotipat Pornavalai Graduate School of Software and Information Iwate Prefectural University Japan School of Computer Engineering Nanyang Technological University Singapore Faculty of Information Technology King Mongkut''s Institute of Technology Ladkrabang Thailand

The need for stricter security, availability of sophisticated algorithms and improved hardware at cheaper price, are the driving forces for increasing popularity of biometric authentication. Machine authentication from face images or fingerprints at the entrance of a building or at bank-teller is getting more and more common. The popularity of using face image features for authentication is due to its ease of use. But its success depends on proper orientation and illumination. Facial features change with the angle of orientation, and even a genuine person would be rejected by the machine due to improper orientation of the face towards the camera. In this work, we proposed a multi-layer perceptron based face identification technique which is robust to orientation of the face image under similar illumination condition. Training data of facial features against orientation angle features is used to train a Multi-Layer Perceptron (MLP). It is then used for interpolation of facial features at different angles. Experiments were conducted with two types of face image identifying features, using PCA and ICA. A good interpolation property could be obtained by the trained MLP, and a zero equal error rate (EER) could be achieved.

关键词： Authentication Robustness Facial features Lighting Multilayer perceptrons Interpolation Security Hardware Biometrics Fingerprint recognition

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Generic Skills in software engineering Master Thesis Projects: Towards Rubric-Based Evaluation

Generic Skills in Software Engineering Master Thesis Project...

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Conference on software engineering Education & Training (CSEE&T)

作者： Robert Feldt Martin Höst Frank Lüders Systems and Software Engineering Blekinge Institute of Technology Ronneby Sweden Computer Science Lund University Lund Sweden School of Innovation Design and Engineering Mälardalen University Vasteras Sweden

There has been much recent interest in how to help students in higher education develop their generic skills, especially since this is a focus of the Bologna process that aims to standardize European higher education. However, even though the Master thesis is the final and often crucial part of a graduate degree and requires many generic skills very little research has directly focused on them. In particular, there is a lack of such knowledge for engineering education programs. In this paper we present results from a survey where we asked 23 students from three different Swedish Universities about which generic skills are needed and developed in a Master thesis project in software engineering. One outcome of our analysis is that there is a lack of understanding on how to define, and thus examine, generic skills in software engineering thesis projects.

关键词： software engineering Systems engineering education computer science education computer science Technological innovation Design engineering Educational technology Educational programs engineering education Large-scale systems

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Students analyzing their collaboration in an international open ended group project

Students analyzing their collaboration in an international o...

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Frontiers in Education (FIE) Conference

作者： Åsa Cajander Tony Clear Mats Daniels Joel Edlund Per Hamrin Cary Laxer Martin Persson Department of Information Technology University of Uppsala Sweden School of Computing & Mathematical Sciences Auckland University of Technology New Zealand Department of Computer Science and Software Engineering Rose Hulman Institute of Technology IN USA

This paper is based on a course run in the fall semester 2008 with students from Sweden and USA where they addressed an open problem in the health sector. Part of the course for the students has been to review how the collaboration actually worked and with special attention to the collaboration platform used. The background to the course and process of choosing the collaborative platform, ClockingIT, is presented. The students' review was informed by engineering education research in order to understand the role of the technology used in their collaboration. The methods adopted by the students are outlined including their application of the Collaborative technology Fit framework as introduced in the thesis by Clear. The role of 'ClockingIT', its effectiveness in supporting collaboration and the effectiveness of 'students as researchers' as a method for insightful reflection are presented.

关键词： International collaboration Collaborative work engineering education Educational technology Clocks Collaborative tools Reflection Councils Monitoring Information technology

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Cheating Resistance for Secret Sharing

Cheating Resistance for Secret Sharing

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International Conference on Networks Security, Wireless Communications and Trusted Computing, NSWCTC

作者： Chao-Wen Chan Chin-Chen Chang Zhi-Hui Wang Graduate School of Computer Science and Information Technology National Taichung Institute of Technology Taichung Taiwan Department of Information Engineering and Computer Science Feng Chia University FCU Taichung Taiwan Department of Software Dalian University of Technology Dalian China

ISBN: (纸本)9781424442232

In this paper we propose a notion, the (t, n)-threshold agreement certificate. The (t, n)-threshold agreement certificates of a secret are also shadows derived from the original secret using a different access structure. Based on these certificates, we present a (t, n)-threshold secret sharing scheme which can resist participantspsila cheating. That is, any participantpsilas cheating would not work in the proposed scheme provided that the assumptions in the paper are true. This electronic document is a ldquoliverdquo template. The various components of your paper [title, text, heads, etc.] are already defined on the style sheet, as illustrated by the portions given in this document.

关键词： Cryptography computer science Resists computer security Information security National security Wireless communication computer networks Chaotic communication Information technology

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A Concrete Certificateless Signature Scheme without Pairings

A Concrete Certificateless Signature Scheme without Pairings

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International Conference on Multimedia Information Networking and Security (MINES)

作者： Aijun Ge Shaozhen Chen Xinyi Huang Department of Applied Mathematics Zhengzhou Information Science and Technology Institute Zhengzhou Henan China School of Computer Science and Software Engineering University of Wollongong Wollongong NSW Australia

Certificateless public key cryptography was introduced to avoid the inherent key escrow problem in identity-based cryptography, and eliminate the use of certificates in traditional PKI. Most cryptographic schemes in certificateless cryptography are built from bilinear mappings on elliptic curves which need costly operations. Despite the investigation of certificateless public key encryption without pairings, certificateless signature without pairings received much less attention than what it deserves. In this paper, we present a concrete pairing-free certificateless signature scheme for the first time. Our scheme is more computationally efficient than others built from pairings. The new scheme is provably secure in the random oracle model assuming the hardness of discrete logarithm problem.

关键词： Concrete Identity-based encryption Public key cryptography Public key Elliptic curve cryptography Elliptic curves computer security Information security Mathematics Information science

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Research on the method of entity homepage recognition

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Journal of Computational Information Systems 2009年第6期5卷 1617-1624页

作者： Li, Lina Yu, Zhengtao Zou, Junjie Su, Lei Xian, Yantuan Mao, Cunli The School of Information Engineering and Automation Kunming University of Science and Technology Kunming 650051 China The Institute of Intelligent Information Processing Computer Technology Application Key Laboratory of Yunnan Province Kunming 650051 China School of Software Yunnan University Kunming 650091 China

Entity Homepage Recognition(EHR) is an important part of entity finding. In this paper, a method of EHR based on AdaBoost is proposed. With the help of Google, this method recalls pages related to answer entities and recognizes to obtain the relevant entity homepage. In detail, Person, Organization and Product, three types of entities are analyzed respectively and 3148 entities and the corresponding entity homepages are collected, besides, on the basis of entity characteristic, we define the entity features related to the features of link and webpage content, as well as, these features are extracted to form a training data set;And then using different learning algorithms with different features to identify the homepage to find the most effective classification features and homepage recognition learning algorithm. Experiments were done by employing the test data set of entity task in TREC-2009 and the method of 10-fold cross validation, the results show the best effects have been achieved by adopting the method of AdaBoost, specifically, combined with the features of link and webpage content, the recognition accuracy rate for right homepage reaches 91.34%. 1553-9105/ Copyright © 2009 Binary Information Press.

关键词： Adaptive boosting

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