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114th Annual ASEE Conference and Exposition, 2007

作者： Acheson, Douglas Acheson, Lingma Indiana University Purdue University-Indianapolis United States Department of Computer Graphics Technology Purdue School of Engineering and Technology Indianapolis IN United States Computer Network Center Purdue School of Engineering and Technology Indianapolis United States School of Liberal Arts Butler University United States School of Science Purdue University Indianapolis United States

Institutions of higher education are self-governing bodies of which participating members must serve on various committees from time to time. To this end, nominations and elections of schoolwide committees are the vital link to this process of faculty governance. With each new academic year, there are numerous changes in faculty status such as new faculty being hired, tenure status, past positions being held and term limits on various committees. Depending on the complexity of each institution's governing document (which states the stipulations for each committee's required representation), making certain nominations and elections are carried out in a fair and equitable manner can prove to be a fairly daunting task. To streamline this yearly task and ensure continuity between former and current election committees, the authors of this paper developed a technology-based system which automates the nomination/election process. This paper presents an overview of this on-line, database-driven committee nomination and election system. This paper also points out several other institutions that have developed similar automated means of dealing with faculty governance logistics and presents issues that must be addressed when considering developing this type of a system. © American Society for engineering Education, 2007.

关键词： engineering education

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Towards Re-engineering Legacy Systems for Assured Dynamic Adaptation

Towards Re-engineering Legacy Systems for Assured Dynamic Ad...

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International Workshop on Modeling in Software engineering (MISE)

作者： Ji Zhang Betty H.C. Cheng Software Engineering and Network Systems Laboratory Department of Computer Science and Engineering Michigan State University East Lansing MI USA

Increasingly, software must adapt its behavior in response to changes in the supporting computing, communication infrastructure, and in the surrounding physical environment. Since most existing software was not designed to adapt, research on technique to make legacy software dynamically adaptive has gained increasing interest. Assurance is crucial for adaptive software to fulfill its intended purpose. Correctness is even more critical if it is to be applied in high assurance systems. This paper proposes a model-driven approach to introduce dynamic adaptation to non-adaptive legacy systems while maintaining assurance properties. An aspect-oriented technique is applied to achieve separation of concerns in the implementation.

关键词： Software engineering Unified modeling language Adaptive systems Communication system software Physics computing Software design Software systems Adaptation model Programming computer science

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Authentication in Reprogramming of Sensor networks for Mote Class Adversaries

Authentication in Reprogramming of Sensor Networks for Mote ...

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International Symposium on Parallel and Distributed Processing (IPDPS)

作者： Limin Wang Sandeep S. Kulkarni Software Engineering and Network Systems Laboratory Department of Computer Science and Engineering Michigan State University East Lansing MI USA

Reprogramming is an essential service for wireless sensor networks. Authenticating reprogramming process is important as sensors need to verify that the code image is truly from a trusted source. There are two ways to achieve authentication: public key based and symmetric key based. Although previous work has shown that public key authentication is feasible on sensor nodes if used sparingly, it is still quite expensive compared to symmetric key based approach. In this paper, we propose a symmetric key based protocol for authenticating reprogramming process. Our protocol is based on the secret instantiation algorithm from, which requires only O(log n) keys to be maintained at each sensor. We integrate this algorithm with the existing reprogramming protocol. Through simulation, we show that it is able to authenticate reprogramming process at very low communication cost, and has very short delay.

关键词： Authentication Protocols Base stations Wireless sensor networks Public key Image sensors Costs Delay Testing Elliptic curve cryptography

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Efficient Identity Authentication Protocol and Its Formal Analysis

Efficient Identity Authentication Protocol and Its Formal An...

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International Conference on Computational Intelligence and Security Workshops (CISW)

作者： Li Chen Guixiang Zhang Xiangdong Li Computer Center Henan University of Finance and Economics China Department of Network Engineering Information and Engineering University Zhengzhou Henan China

The paper proposes an efficient identity authentication protocol for mobile commerce based on token. The proposed protocol needs fewer messages to authenticate identities of mobile users called as important entities in the foremost time, as well as session keys used for transaction are negotiated efficiently. To analyze the proposed protocol, the paper also proposes an extension of BAN logic. Using the extended BAN logic, the objective and security of the protocol are proved by the formal analytical process.

关键词： Authentication Protocols Public key Body sensor networks Logic Cryptography Information security Business Computational intelligence Finance

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QUANTUM SIMULATIONS OF DUAL GATE MOSFET DEVICES: BUILDING AND DEPLOYING COMMUNITY NANOTECHNOLOGY SOFTWARE TOOLS ON ***

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International Journal of High Speed Electronics and Systems 2007年第3期17卷 485-494页

作者： SHAIKH AHMED GERHARD KLIMECK DERRICK KEARNEY MICHAEL MCLENNAN M. P. ANANTRAM Network for Computational Nanotechnology Purdue University West Lafayette IN 4790 USA Department of Electrical and Computer Engineering University of Waterloo Ontario Canada

Undesirable short-channel effects associated with the relentless downscaling of conventional CMOS devices have led to the emergence of new classes of MOSFETs. This has led to new and unprecedented challenges in computational nanoelectronics. The device sizes have already reached the level of tens of nanometers where quantum nature of charge-carriers dominates the device operation and performance. The goal of this paper is to describe an on-going initiative on *** to provide new models, algorithms, approaches, and a comprehensive suite of freely-available web-based simulation tools for nanoscale devices with capabilities not yet available commercially. Three software packages nanoFET, nanoMOS and QuaMC are benchmarked in the simulation of a widely-studied high-performance novel MOSFET device. The impact of quantum mechanical effects on the device properties is elucidated and key design issues are suggested.

关键词： NanoHUB MOSFETs Quantum effects Online simulation NEGF

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Image authentication for low complexity applications

Image authentication for low complexity applications

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2007 IEEE Region 5 Technical Conference, TPS

作者： Adi, W. Dawood, A. Mabrouk, A. Musa, Sarhan M. Institute of Computer and Communication Network Engineering Technical University of Braunschweig Hans-Sommer-Straße 66 38106 Braunschweig Germany Communication Engineering Department Etisalat University College P. O. Box 573 Sharjah United Arab Emirates Lufthansa Systems AS D-65451 Kelsterbach Germany Engineering Technology Department Prairie View AandM University Prairie View TX 77446 United States

ISBN: (纸本)1424412803

Hand-held mobile devices are having a wide spectrum of applications. Such devices which incorporate sending images of relevant legal significance require certifying the source of the image. Hand-held devices inherently have very limited energy resources. The aim of this work is to propose low energy authentication mechanism even when using public-key cryptography. We proposed a technique for fast public-key image authentication using fuzzy-computations for the El-Gamal authentication technique. The fuzzy operations are embedded in the authentication computations to sign images without performing high complexity operations such as exponentiations. The result is low complexity and low energy processing on the mobile device site. The technique is rather general and can be deployed similarly for other similar environments. The fact that power consumption/speed is becoming an essential issue for hand-held devices make this technique very promising for future applications. © 2007 IEEE.

关键词： Authentication

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Smurf-based Distributed Denial of Service (DDoS) Attack Amplification in Internet

Smurf-based Distributed Denial of Service (DDoS) Attack Ampl...

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International Conference on Internet Monitoring and Protection, ICIMP

作者： Sanjeev Kumar Network Research Lab Department of Electrical/Computer Engineering University of Texas-PanAmerican Edinburgh TX UK

The Smurf-based distributed denial of service (DDoS) attack is an amplification attack where the attacker uses unprotected intermediate networks to amplify the attack traffic load and direct it to the victim computer. In this paper, we investigate the factors that contribute to the amplification of the smurf attack traffic and understand the relation among the original attack traffic, intermediate unprotected network and the final amplified attack traffic. We also define a new term called attack amplification factor which represents the degree of amplification that original attack traffic undergoes during its transmission towards the victim computer. It is also shown in this paper that utilizing this attack, it is possible for an attacker to just use a dialup modem and an unprotected intermediary network to exhaust even an ultra high speed optical line such as OC-192 of the victim network.

关键词： computer crime Web and internet services Telecommunication traffic computer networks Distributed computing Bandwidth IP networks network servers Web services USA Councils

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Middleware based inpatient healthcare information system

Middleware based inpatient healthcare information system

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7th IEEE International Conference on Bioinformatics and Bioengineering, BIBE

作者： Hsieh, S.H. Hsieh, S.L. Weng, Y.C. Yang, T.H. Lai, Feipei Cheng, P.H. Ping, X.O. Jan, M.Y. Lin, J.C. Peng, C.H. Huang, K.H. Ko, L.F. Chen, C.H. Hsu, K.P. Information Systems Office National Taiwan University Hospital Taipei Taiwan Department of Computer Science and Information Engineering National Taiwan University Taipei Taiwan Department of Electrical Engineering National Taiwan University Taipei Taiwan Network and Computer Centre National Chiao Tung University Hsin Chu Taiwan Graduate Institute of Biomedical Electronics and Bioinformatics National Taiwan University Taiwan Department of Information Management National Taiwan University Taipei Taiwan

ISBN: (纸本)1424415098

The paper presents a multi-tier, integrated, distributed, Inpatient Healthcare Information System based on Service Oriented Architecture (SOA) .NET environment in National Taiwan University Hospital (NTUH). The architecture and outcomes of the newly developed Inpatient Information System (IIS) platform are discussed in details. We also present mechanisms of integration as well as interoperability among the components and multi-database in IIS via Health Level Seven (HL7) Middleware layer. The preliminary performance of the current operating IIS is evaluated and analyzed to verify the efficiency and effectiveness of the architecture we designed. ©2007 IEEE.

关键词： Information systems

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Enhancing security performance with parallel crypto operations in SSL bulk data transfer phase

Enhancing security performance with parallel crypto operatio...

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IEEE International Conference on Telecommunications and Malaysia Communications (ICT-MICC)

作者： Hashem Mohammed Alaidaros Mohd Fadlee A. Rasid Mohamed Othman Raja Syamsul Azmir Raja Abdullah Department of Computer and Communication Systems Engineering Faculty of Engineering Universiti Putra Malaysia Malaysia Department of Communication Technology and Network Faculty of Computer Science and Information Technology Universiti Putra Malaysia Malaysia

Information security, including integrity and privacy, is an important concern among today's computer users due to increased connectivity. Despite a number of secure algorithms that have been proposed, the trade-offs made between security and performance demands further research toward improvement. In bulk data transfer, especially in large messages, the secured processing time takes much longer than non-secured processes. This is due to crypto operations, which include symmetric encryption operations and hashing functions. In the current bulk data transfer phase in secure socket layer (SSL), the server or the client firstly calculates the message authentication code (MAC) of the data using keyed-hash message authentication code (HMAC) operation, and then performs the symmetric encryption on the data together with the MAC. This paper proposes a new algorithm which provides a significant performance gain in bulk data transfer without compromising the security. The proposed algorithm performs the encryption of the data and the calculation of the MAC in parallel. The server calculates the MAC of the data at the same time as the encryption process of the data. Once the calculation of the MAC is completed, only then the MAC will be encrypted. The algorithm was simulated in two processors with one processor performing the MAC calculation and the other on encrypting the data, simultaneously. The communication between the two processors was done via message passing interface (MPI). Based on the performance simulations, the new parallel algorithm gained speedup of 1.74 with 85% efficiency over the current (sequential) algorithm.

关键词： Data security Cryptography Information security Communication system security Concurrent computing Message authentication Parallel processing computer security computer networks Data engineering

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DiffArchViz: A Tool to Visualize Correspondence Between Multiple Representations of a Software Architecture

DiffArchViz: A Tool to Visualize Correspondence Between Mult...

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IEEE International Workshop on Visualizing Software for Understanding and Analysis (VISSOFT)

作者： Amit P. Sawant Naveen Bali Department of Computer Science North Carolina State University Performance Engineering Group Network Appliance Inc

This paper describes a technique to visualize the software architecture of the network Appliance Data ONTAPreg7G (ONTAP) storage server operating system. We integrate the Multi-Dimensional Scaling (MDS) algorithm into a visualization technique for converting raw source code into patterns that capture the software architecture. Individual components are drawn using graphical "glyphs" that vary their spatial position, color, and texture properties to encode each component's attribute values. The result is a display that can be used by viewers to rapidly and accurately analyze, explore, compare, and discover within the software architecture. We show how our visualization tool, known as DiffArchViz, can be used to study different architectural views representing multiple attributes of the software components. We also present a technique to visualize dynamic software architecture by examining the correspondence between multiple runtime profiles for a few storage server performance benchmarks. We apply our technique to multiple hardware platforms and versions of ONTAP.

关键词： Software architecture Data visualization Home appliances network servers Operating systems Software algorithms Displays Software tools Runtime Hardware

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