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Proceedings of the 5th International Conference on Ubiquitous Information Management and Communication

作者： Song, Biao Hassan, Mohammad Mehedi Huh, Eui Nam Internet Computing and Network Security Lab. Department of Computer Engineering Kyung Hee University 1 Seocheon-dong Giheung-gu Yongin-si Gyeonggi-do 446-701 Korea Republic of

ISBN: (纸本)9781450305716

network Virtualization, as an irresistible trend for building future internet, create a virtual topology on the top of the current network architecture and provide end-to-end quality of service guarantees. By utilizing the flexibility of the virtual network, this paper proposes a novel and reliable model for IPTV service delivery using network virtualization. The challenging issues in our model are the virtual network topology construction and virtual network embedding. Since the current network topologies are not sufficient enough to be applied, an advanced topology named Multi-Depots Ring-Star with 2-Depots per Ring is proposed for improving the efficiency and reliability of the IPTV service delivery network. We also develop a VN construction and allocation framework which reduces the difficulty of topology reconstruction problem caused by the unpredictability of virtual network embedding results. Copyright 2011 ACM.

关键词： Topology

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Cost analysis on IPTV hosting service for 3rd party providers 11

Cost analysis on IPTV hosting service for 3rd party provider...

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Proceedings of the 5th International Conference on Ubiquitous Information Management and Communication

作者： Aldana Diaz, Maria Elizabeth Huh, Eui Nam Department of Computer Engineering Internet Computing and Network Security Lab. Kyung Hee University 1 Seocheon-dong Giheung-gu Yongin-si Gyeonggi-do 446-701 Korea Republic of

ISBN: (纸本)9781450305716

3rd party content service expands the variety of contents that IPTV usually distributes and opens the opportunity to create new and attractive content to anyone. However, the hosting service for 3rd party content demands high cost. Therefore, IPTV provider needs an effective strategy of resource management to minimize the cost. Thereby, the cost function is based on the IPTV management of content including storage, distribution and delivery. This paper proposes three cost-based policies management. In addition, we design an experiment to evaluate each policy for two types of 3rd party content service i.e. static and dynamic and suggest the least-cost policy management that complies with Service Level Agreements (SLAs) delivering the 3rd party content in the shortest period of time. Copyright 2011 ACM.

关键词： IPTV

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An Efficient Key Management for Secure Multicast in Sensor-Cloud

An Efficient Key Management for Secure Multicast in Sensor-C...

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ACIS/JNU International Conference on computers, networks, Systems and Industrial engineering (CNSI)

作者： Tien-Dung Nguyen Eui-Nam Huh Department of Computer Engineering Internet Computing and Security Laboratory Suwon South Korea

Nowadays, in Publish/Subscribe system, the number of subscriptions from customers can be large, the events happening in such a system are more frequent and the notification load is heavy. Combining with cloud computing that is becoming increasingly popular for scalability and availability it promises, called Sensor-Cloud, there are many approaches that improve data delivery issues in such scenario efficiently. However, there are few approaches that consider secure data delivery while security plays an important role in Sensor-Cloud. In this paper, we propose an efficient secure multicast approach by combining Group-key and Time-key (CoGKTK) to minimize number of updated key for such dynamic scenario in Sensor-Cloud. We analytically show the performance and scalability benefits of our approach over data delivery infrastructure in Sensor-Cloud.

关键词： Subscriptions Servers Cryptography Protocols Wireless sensor networks computer architecture

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Strong security enabled certificateless aggregate signatures applicable to mobile computation

Strong security enabled certificateless aggregate signatures...

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3rd IEEE International Conference on Intelligent networking and CollaborativeSystems, INCoS 2011

作者： Hu, Xiong Wu, Qianhong Chen, Zhong Key Laboratory of Network and Software Security Assurance of the Ministry of Education School of Electronics Engineering and Computer Science Peking University Beijing 100871 China Key Laboratory of Aerospace Information Security and Trusted Computing Wuhan University Ministry of Education China Universitat Rovira i Virgili Department of Computer Engineering and Mathematics UNESCO Av. Països Catalans 26 E-43007 Tarragona Spain

ISBN: (纸本)9780769545790

An aggregate signature scheme allows a public algorithm to aggregate n signatures of n distinct messages from n signers into a single signature. By validating the single resulting signature, one can be convinced that the messages have been endorsed by all the signers. Certificateless aggregate signatures allow the signers to authenticate messages without suffering from the complex certificate management in the traditional public key cryptography or the key escrow problem in identitybased cryptography. In this paper, we present a new efficient certificateless aggregate signature scheme. Compared with up-todate certificateless aggregate signatures, our scheme is equipped with a number of attracting features: (1) it is shown to be secure under the standard computational Diffie-Hellman assumption in the random oracle model;(2) the security is proven in the strongest security model so far;(3) the signers do not need to be synchronized;and (4) its performance is comparable to the most efficient up-to-date schemes. These features are desirable in a mobile networking and computing environment where the storage/computation capacity of the end devices are limited, and due to the wireless connection and distributed feature, the computing devices are easy to be attacked and hard to be synchronized. © 2011 IEEE.

关键词： Public key cryptography

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Strong security Enabled Certificateless Aggregate Signatures Applicable to Mobile Computation

Strong Security Enabled Certificateless Aggregate Signatures...

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International Conference on Intelligent networking and Collaborative Systems (INCOS)

作者： Hu Xiong Qianhong Wu Zhong Chen Key Laboratory of Network and Software Security Assurance of the Ministry of Education Institute of Software School of Electronics Engineering and Computer Science Peking University Beijing China Department of Computer Engineering and Mathematics UNESCO Chair in Data Pr Universitat Rovira i Virgili Tarragona Spain Key Laboratory of AeroSpace Information Security and Trusted Computing Ministry of Education School of Computer Wuhan University of China China

An aggregate signature scheme allows a public algorithm to aggregate n signatures of n distinct messages from n signers into a single signature. By validating the single resulting signature, one can be convinced that the messages have been endorsed by all the signers. Certificateless aggregate signatures allow the signers to authenticate messages without suffering from the complex certificate management in the traditional public key cryptography or the key escrow problem in identity-based cryptography. In this paper, we present a new efficient certificate less aggregate signature scheme. Compared with up-to-date certificate less aggregate signatures, our scheme is equipped with a number of attracting features: (1) it is shown to be secure under the standard computational Diffie-Hellman assumption in the random oracle model, (2) the security is proven in the strongest security model so far, (3) the signers do not need to be synchronized, and (4) its performance is comparable to the most efficient up-to-date schemes. These features are desirable in a mobile networking and computing environment where the storage/computation capacity of the end devices are limited, and due to the wireless connection and distributed feature, the computing devices are easy to be attacked and hard to be synchronized.

关键词： Aggregates Games Generators Synchronization Public key cryptography

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Enhance Information Flow Tracking with Function Recognition

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China Communications 2010年第6期7卷 24-29页

作者： Zhou Kan Huang Shiqiu Huang Shan Qi Zhengwei Gu Jian Guan Haibing School of software Shanghai Jliao Tong University Shanghai 200240 P. R. China Key Lab of Information Network Security Ministry of Public Security Department of Computer Science ＆ Engineering Shanghai Jiao Tong University Shanghai 200240 P. R China Shanghai Key Laboratory of Scalable Computing ＆ System Shanghai P. R. China

With the spread use of the computers, a new crime space and method are presented for criminals. Thus computer evidence plays a key part in criminal cases. Traditional computer evidence searches require that the computer specialists know what is stored in the given computer. Binary-based information flow tracking which concerns the changes of control flow is an effective way to analyze the behavior of a program. The existing systems ignore the modifications of the data flow, which may be also a malicious behavior. Thus the function recognition is introduced to improve the information flow tracking. Function recognition is a helpful technique recognizing the function body from the software binary to analyze the binary code. And that no false positive and no false negative in our experiments strongly proves that our approach is effective.

关键词： function recognition information flow tracking program behavior e-evidence.

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A Novel Cloud Market Infrastructure for Trading Service

A Novel Cloud Market Infrastructure for Trading Service

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International Conference on Computational Science and its Applications (ICCSA)

作者： Biao Song Mohammad Mehedi Hassan Eui-Nam Huh Internet Computing and Network Security Laboratory Department of Computer Engineering Kyung Hee University South Korea

In this paper, we present a novel combinatorial auction (CA) based trading infrastructure to enable the supply and demand of Cloud services from different Cloud providers (CP). We propose a new auction policy that considers the relationship among CPs (mutual business relationship) in bidding mechanism. In our new auction-based market model, we allow the group of service providers to publish their bids collaboratively as a single bid to the auctioneer. It gives service providers a chance to autonomously find partners and make groups. Then they can use group strategy to increase their competitive power and compete for winning the bid (s). This will reduce conflicts, as well as collaboration cost and negotiation time, among participants as compare to existing CA-based market model. We implement our proposed market model of trading service in a simulated environment and study its economic efficiency with existing model.

关键词： Cloud computing Collaboration Resource management computer networks Power generation economics Power system modeling Environmental economics Supply and demand Costs Application software

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A Hybrid Algorithm for Partner Selection in Market Oriented Cloud computing

A Hybrid Algorithm for Partner Selection in Market Oriented ...

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International Conference on Management and Service Science, MASS

作者： Biao Song M. M. Hassan Eui-Nam Huh Chang-Woo Yoon Hyun-Woo Lee Internet Computing and Network Security Laboratory Department of Computer Engineering Kyung Hee University South Korea Electronics and Telecommunications Research Institute South Korea

In our previous paper, we proposed a novel combinatorial auction (CA) based cloud market model for trading services that allows cloud providers (CPs) to make groups and submit their bids collaboratively as a single bid for winning the auction. But to find a good combination of CP partners and make groups is a NP-hard problem. Since each provider only has limited information about other providers, past collaborative task information (i.e. no. of times collaboratively win the auctions, failed to make groups, etc.) needs to be analyzed and utilized for partner selection. We call it multi-task and multi-objective optimization problem. To solve this problem, in this paper, we propose a hybrid algorithm that utilizes artificial neural network (ANN) for gathering and analyzing information about previous tasks and then uses multi-objective genetic algorithm (MOGA) to solve the partner selection problem. Simulation results show that our proposed algorithm is effective.

关键词： Cloud computing Artificial neural networks Collaboration computer networks Information analysis Electronic mail Algorithm design and analysis Genetic algorithms Neural networks IP networks

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A Grid-enabled framework of expertise search engine using web-based online communities

A Grid-enabled framework of expertise search engine using we...

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11th International Conference on computer and Information Technology, ICCIT 2008

作者： Hassan, Mohammad Mehedi Lee, Pil-Woo Huh, Eui-Nam Internet Computing and Network Security Lab Department of Computer Engineering Kyung Hee University Korea Republic of KISTI Daejun Korea Republic of

ISBN: (纸本)9781424421367

Existing search engines like Google' Yahoo!' Live etc. are not yet capable to answer queries that require deep semantic understanding of the query or the document. Instead' it is preferable to find and ask someone who has related expertise or experience on a topic and thus Web-based online communities have become important places for people to seek and share expertise. We need to gather the data that describes these online communities. But extracting' aggregating and analyzing data from these communities for finding experts on a single framework is a challenging task. Also there is no universal standard data structure for the outline of user participation in these communities. In this paper' we present a Grid-enabled framework of expertise search (GREFES) engine which utilizes online communities as sources for experts on various topics. This is a work in progress. We also propose an open data structure called SNML (Social network Markup Language) to outline user participation in online communities. The architecture addresses major challenges in crawling of community data and query processing by utilizing Grid. An expert ranking algorithm is also discussed and evaluated.

关键词： Data structures

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Propagation Service Decision Method for Web Services Composition in u-Lifecare System

Propagation Service Decision Method for Web Services Composi...

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International Conference on Computational Science and its Applications (ICCSA)

作者： Ki-moon Choi Mohammad Mehedi Hassan Eui-Nam Huh Internet Computing and Network Security Laboratory Department of Computer Engineering Kyung Hee University Yongin si Gyeonggi South Korea

In Web environment, multiple Web service(WS)s may provide similar functionalities with different nonfunctional property values (e.g. different QoS metrics). Quality of service (QoS) metrics of WSs are critical factors to select appropriate WSs execution path in WSs composition as it requires expensive computation cost to find out appropriate execution path in Web environment, i.e O(MN) assuming that there will be M candidate services and N WSs in composition model. Thus, it is very important to decide which service execution path will be more suitable to users in execution time. Existing methods find execution path in design time which is inefficient as the QoS metrics of WSs are changed frequently in real time. Thus, in this paper, we propose a dynamic service execution path selection method called PSDM (propagation service decision method) in execution time for web service composition in u-Lifecare system. The proposed scheme is analyzed and experiment results are shown in terms of frequency of service execution path.

关键词： Web services Quality of service computer networks Availability Computational efficiency Frequency Throughput Costs Application software IP networks

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