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Smart Card Authentication For Mobile Devices, Wayne Jansen, Serban Gavrila, Clément Séveillac Jan 2005

Smart Card Authentication For Mobile Devices, Wayne Jansen, Serban Gavrila, Clément Séveillac

Research outputs pre 2011

While mobile handheld devices provide productivity benefits, they also pose new risks. User authentication is the best safeguard against the risk of unauthorized use and access to a device’s contents. This paper describes two novel types of smart card with unconventional form factors, designed to take advantage of common interfaces built into many current handheld devices.

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Storybook: Extending A Personalised Interactive Learning Environment To Children With Severe Learning Disabilities, Michael Collins, Sundrakanthi Singh Jan 2005

Storybook: Extending A Personalised Interactive Learning Environment To Children With Severe Learning Disabilities, Michael Collins, Sundrakanthi Singh

Research outputs pre 2011

Not all recipients of eLearning map well for measurement by such as the Kirkpatrick model, especially young students with severe learning disabilities. StoryBook is a tool specifically designed to aid teachers to create and include a simple, enjoyable, tailored interactive computer-based audio/visual learning environment as part of a custom curriculum for such students. In it, stories are currently gathered into libraries suitable for unique individuals or more common content, on a local, classroom basis. We describe prototype software for eLearning for such students, already trialled in a special educational unit in Perth, Western Australia. We then outline plans for a …

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Recommendations For Wireless Network Security Policy: An Analysis And Classification Of Current And Emerging Threats And Solutions For Different Organisations, Andrew Woodward Jan 2005

Recommendations For Wireless Network Security Policy: An Analysis And Classification Of Current And Emerging Threats And Solutions For Different Organisations, Andrew Woodward

Research outputs pre 2011

Since their inception, 802.11 wireless networks have been plagued by a wide range of security problems. These problems relate to both data security and denial of service attacks, and there have been many solutions created by different vendors address these problems. However, the number of different types of attack, and the many possible solutions, makes it a difficult task to put in place an appropriate wireless network security policy. Such a policy must address both the size and nature of the enterprise, and the resources available to it. Measures such as WEP and MAC filtering are only appropriate for home …

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Architecture For Self-Estimation Of Security Level In Ad Hoc Network Nodes, Reijo Savola Jan 2005

Architecture For Self-Estimation Of Security Level In Ad Hoc Network Nodes, Reijo Savola

Research outputs pre 2011

Inherent freedom due to a lack of central authority of self-organised mobile ad hoc networks introduces challenges to security and trust management. In these kinds of scenarios, the nodes themselves are naturally responsible for their own security – or they could trust certain known nodes, called “micro-operators”. We propose an architecture for security management in self-organising mobile ad hoc networks that is based on the nodes’ own responsibility and node-level security monitoring. The aim is to predict, as well as to monitor the security level concentrating on the principal effects contributing to it.

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My Problem Or Our Problem? Exploring The Use Of Information Sharing As A Component Of A Holistic Approach To E-Security In Response To The Growth Of ‘Malicious Targeted Attacks’, Aaron Olding, Paul Turner Jan 2005

My Problem Or Our Problem? Exploring The Use Of Information Sharing As A Component Of A Holistic Approach To E-Security In Response To The Growth Of ‘Malicious Targeted Attacks’, Aaron Olding, Paul Turner

Research outputs pre 2011

There is now a growing recognition amongst e-security specialists that the e-security environment faced by organisations is changing rapidly. This environment now sees a situation where maliciously targeted attacks are conducted by ‘guns for hire’ (hackers) and/or criminal organisations (Illett 2005; Keiser 2005). As a consequence, conventional organisational approaches to e-security are becoming increasingly problematic and inadequate. There is a need to raise awareness of these issues amongst organisations and to contribute to the generation of effective integrated solutions that address this emerging e-security environment without sacrificing user privacy and/or breaching user trust. This paper considers the potential role of …

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Physician Secure Thyself, Patricia Williams Jan 2005

Physician Secure Thyself, Patricia Williams

Research outputs pre 2011

Whilst discussion rages on the issues relating to security of medical data and the reason why it is important, there is little published information on how to tackle even basic security challenges for medical practice in Australia. Research suggests an underestimation of the threats to medical data by medical practitioners, hence there is sufficient reason to promote development of tools to assist medical practice with technical issues they are unfamiliar with. This paper provides an initial dialogue on how these security issues should be addressed. Included is a framework for risk assessment and elaboration of the implementation process to make …

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Seeking Information Superiority: Strategies For Business In The Commercial Application Of Information Operations, Martin Dart Jan 2005

Seeking Information Superiority: Strategies For Business In The Commercial Application Of Information Operations, Martin Dart

Research outputs pre 2011

Information superiority is a condition that many businesses attempt to attain without truly understanding what it is, or how to get there. This paper presents an overview to help businesspeople recognize the road to information superiority, and some of the essential strategies to implement along the way. Information operations is a concept described to enable information superiority, when used with a network form of organization (as opposed to simply being networked). This paper describes information operations across their fundamental structure of intelligence, surveillance, and reconnaissance (ISR); and suggests a separation between industrial espionage and legitimate business information gathering. A model …

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Detecting Rogue Access Points That Endanger The Maginot Line Of Wireless Authentication, Zhiqi Tao, A. B. Ruighaver Jan 2005

Detecting Rogue Access Points That Endanger The Maginot Line Of Wireless Authentication, Zhiqi Tao, A. B. Ruighaver

Research outputs pre 2011

The rapid growth in deployment of wireless networks in recent years may be an indication that many organizations believe that their system will be adequately secured by the implementation of enhanced encryption and authentication. However, in our view, the emphasis on cryptographic solutions in wireless security is repeating the history of the “Maginot Line”. Potential attackers of wireless networks currently will find many ways to get access to wireless networks to compromise the confidentiality of information without the need to crack the encryption. In this paper we analyze how rogue access points threaten the security of an organization’s wireless network …

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Security Governance: Its Impact On Security Culture, K. Koh, A. B. Ruighaver, S. B. Maynard, A. Ahmad Jan 2005

Security Governance: Its Impact On Security Culture, K. Koh, A. B. Ruighaver, S. B. Maynard, A. Ahmad

Research outputs pre 2011

While there is an overwhelming amount of literature that recognises the need for organisations to create a security culture in order to effectively manage security, little is known about how to create a good security culture or even what constitutes a good security culture. In this paper, we report on one of two case studies performed to examine how security governance influences security culture and in particular, the sense of responsibility and ownership of security. The results indicate that although the structural and functional mechanisms in security governance are influencing factors, it is the extent of social participation that may …

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A Study Of The Relationships Between End-User Information Systems Problems And Helpdesk Critical Success Factors In Higher Education, Richard Dale Parrott Jan 2005

A Study Of The Relationships Between End-User Information Systems Problems And Helpdesk Critical Success Factors In Higher Education, Richard Dale Parrott

CCAC Theses and Dissertations

In the last fifteen years, information technology (IT) customer support has increased in importance within higher education. The pervasiveness of computers and technology on the campus has allowed students, staff, and faculty to perform a multitude of tasks by controlling their own environments and setting their own priorities. Qualified professional system and user support services have lagged demand. The problem investigated in this study was end-users' satisfaction levels of the higher education helpdesk and how end-users' satisfaction levels affected a helpdesk manager's critical success factors performance and goals. In this study, the first goal was to identify the critical success …

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Computer-Supported Rehabilitation Management A Case Study Of Using Virtual Reality Technology In Ambulatory Training For Post-Acute Stroke Patients, Felix O. Akinladejo Jan 2005

Computer-Supported Rehabilitation Management A Case Study Of Using Virtual Reality Technology In Ambulatory Training For Post-Acute Stroke Patients, Felix O. Akinladejo

CCAC Theses and Dissertations

This study investigated the use of virtual reality (VR) technology in ambulatory training for post-acute stroke patients, and sought to determine whether skills gained in virtual environments transfer to real-world conditions. Patients with stroke typically suffer dysfunctions that impair the complex set of motions involved in walking. The limited amount of therapy and resources offered by the current health care system does not provide the frequency and intensity of training needed for functional recovery of the walking skills in patients following stroke assaults. This study, therefore, developed and investigated an alternative intervention technique capable of providing the frequency and intensity …

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Compressed Pattern Matching For Text And Images, Tao Tao Jan 2005

Compressed Pattern Matching For Text And Images, Tao Tao

Electronic Theses and Dissertations

The amount of information that we are dealing with today is being generated at an ever-increasing rate. On one hand, data compression is needed to efficiently store, organize the data and transport the data over the limited-bandwidth network. On the other hand, efficient information retrieval is needed to speedily find the relevant information from this huge mass of data using available resources. The compressed pattern matching problem can be stated as: given the compressed format of a text or an image and a pattern string or a pattern image, report the occurrence(s) of the pattern in the text or image …

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Gmpac - The Generic Message Processing And Communications Framework, Eoin Barry Jan 2005

Gmpac - The Generic Message Processing And Communications Framework, Eoin Barry

Theses

The Generic Message Processing and Communications Framework (GMPAC), is an extensible, communications architecture, which is concerned processing various message types. The GMPAC framework is designed around the java NIO API. It receives in various messages over a socket, decomposes them and extracts the payload. It then passes a message back to the sender in the same format as the received message. GMPAC uses xml files to define message formats, and decodes and decodes the messages using information contained in these definitions. This project was developed for Altobridge Tralee, meeting a set of requirements set out by them. This report provides …

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Planning And Scheduling For Large-Scaledistributed Systems, Han Yu Jan 2005

Planning And Scheduling For Large-Scaledistributed Systems, Han Yu

Electronic Theses and Dissertations

Many applications require computing resources well beyond those available on any single system. Simulations of atomic and subatomic systems with application to material science, computations related to study of natural sciences, and computer-aided design are examples of applications that can benefit from the resource-rich environment provided by a large collection of autonomous systems interconnected by high-speed networks. To transform such a collection of systems into a user's virtual machine, we have to develop new algorithms for coordination, planning, scheduling, resource discovery, and other functions that can be automated. Then we can develop societal services based upon these algorithms, which hide …

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Contributions To Automatic Particle Identification In Electron Micrographs: Algorithms, Implementation, And Applications, Vivek Singh Jan 2005

Contributions To Automatic Particle Identification In Electron Micrographs: Algorithms, Implementation, And Applications, Vivek Singh

Electronic Theses and Dissertations

Three dimensional reconstruction of large macromolecules like viruses at resolutions below 8 Ã… - 10 Ã… requires a large set of projection images and the particle identification step becomes a bottleneck. Several automatic and semi-automatic particle detection algorithms have been developed along the years. We present a general technique designed to automatically identify the projection images of particles. The method utilizes Markov random field modelling of the projected images and involves a preprocessing of electron micrographs followed by image segmentation and post processing for boxing of the particle projections. Due to the typically extensive computational requirements for extracting hundreds of …

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Secure 3g User Authentication In Ad-Hoc Serving Networks, Lyn L. Evans Jan 2005

Secure 3g User Authentication In Ad-Hoc Serving Networks, Lyn L. Evans

LSU Master's Theses

The convergence of cellular and IP technologies has pushed the integration of 3G and WLAN networks to the forefront. With 3G networks' failure to deliver feasible bandwidth to the customer and the emerging popularity, ease of use and high throughput of 802.11 WLANs, integrating secure access to 3G services from WLANs has become a primary focus. 3G user authentication initiated from WLANs has been defined by an enhancement to the extensible authentication protocol, EAP, used to transport user authentication requests over WLANs. The EAP-AKA protocol executes the 3G USIM user challenge and response authentication process over the IP backbone for …

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Intelligent Autonomous Data Categorization, Edward Graham Finegan Jan 2005

Intelligent Autonomous Data Categorization, Edward Graham Finegan

Theses and Dissertations

The goal of this research was to determine if the results of a simple comparison algorithm (SCA) could be improved by adding a hyperspace analogue to language model of memory (HAL) layer to form NCA. The HAL layer provides contextual data that otherwise would be unavailable for consideration. It was found that NCA did improve the results when compared to SCA alone. However, NCA added complexity problems that limit its practicality. The complexity of this algorithm is On3 where n is equal to the number of unique symbols in the data. While there is a relativity reasonable soft upper bound …

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Heuristic Optimization As A V&V Tool For Software Process Simulationmodels, Wayne Wakeland, Stephen Shervais, David Raffo Jan 2005

Heuristic Optimization As A V&V Tool For Software Process Simulationmodels, Wayne Wakeland, Stephen Shervais, David Raffo

Complex Systems Faculty Publications and Presentations

This work illustrates the use of heuristic algorithms to improve the verification and validation of software process simulation models. To use this approach, an optimization problem is formulated to guide a heuristic search algorithm that will attempt to locate particular combinations of parameter values that yield surprising results. These surprising results often help the modeler to identify flaws in the model logic that would otherwise remain undetected. The general concepts are discussed and a simple example is provided.

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Cyclic Difference Covers, K. T. Arasu, Surinder Sehgal Jan 2005

Cyclic Difference Covers, K. T. Arasu, Surinder Sehgal

Mathematics and Statistics Faculty Publications

his paper studies cyclic difference covers in finite cyclic groups and develops several constructions and existence results for these combinatorial structures. The authors investigate conditions under which cyclic difference covers exist, derive new infinite families, and analyze connections with related objects such as difference sets and covering designs. Applications to combinatorial design theory and coding-related constructions are also discussed.

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Adaptive Replication And Access Control Of Multimedia Data In A P2p Environment, Sanjay Kumar Madria, Sanjeev Agarwal Jan 2005

Adaptive Replication And Access Control Of Multimedia Data In A P2p Environment, Sanjay Kumar Madria, Sanjeev Agarwal

Computer Science Faculty Research & Creative Works

This paper explores some of the ideas and solutions related to replication and access control of multimedia data in a hierarchical P2P environment. We provided overview of the techniques to generate multiresolution of multimedia data and explored error recovery and access control issues.

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Partnering For Perfection: An Economics Perspective On B2b Electronic Market Strategic Alliances, Qizhi Dai, Robert J. Kauffman Jan 2005

Partnering For Perfection: An Economics Perspective On B2b Electronic Market Strategic Alliances, Qizhi Dai, Robert J. Kauffman

Research Collection School Of Computing and Information Systems

New technological innovations have made it possible for new intermediaries to create value in business processes that involve the procurement of manufacturing and services supplies. Associated with these innovations is the emergence of business-to-business (B2B) electronic markets. These act as digital intermediaries that aim to reduce the transaction costs and mitigate the risks inherent in procurement. They improve buyers’ capabilities to search for attractive prices and also serve to increase the liquidity of sellers’ products. In this chapter, the authors explore the evolution of B2B e-market firms in terms of the strategies they employ to “perfect” their value propositions and …

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Simulation Study For Wireless Sensor Networks And Load Sharing Routing Protocol To Increase Network Life And Connectivity, Ankur Suri Jan 2005

Simulation Study For Wireless Sensor Networks And Load Sharing Routing Protocol To Increase Network Life And Connectivity, Ankur Suri

LSU Master's Theses

LSU SensorSimulator is a framework for simulating wireless sensor networks. It is a customizable and extendible simulator, which allows testing and analyzing software for wireless sensor networks. The users can subclass the framework classes and customize the behavior of various network layers. This subclassing gives a way to the developers an opportunity to analyze and investigate, phenomenological, networking, robustness and scaling issues, to explore arbitrary algorithms for distributed sensors, independent of hardware constraint. The results are compared against the simulation results for ns-2 for routing protocols Directed Diffusion and GEAR. Through the comparison of results for scalability, performance and memory …

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Simulation Study Of Routing Protocols In Wireless Sensor Networks, Vatsalya Kunchakarra Jan 2005

Simulation Study Of Routing Protocols In Wireless Sensor Networks, Vatsalya Kunchakarra

LSU Master's Theses

Wireless sensor networks, a distributed network of sensor nodes perform critical tasks in many application areas such as target tracking in military applications, detection of catastrophic events, environment monitoring, health applications etc. The routing protocols developed for these distributed sensor networks need to be energy efficient and scalable. To create a better understanding of the performance of various routing protocols proposed it is very important to perform a detailed analysis of them. Network simulators enable us to study the performance and behavior of these protocols on various network topologies. Many Sensor Network frameworks were developed to explore both the networking …

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Energy-Rate Based Mac Protocol For Wireless Sensor Networks And Key Pre-Distribution Schemes, Ramaraju Kalidindi Jan 2005

Energy-Rate Based Mac Protocol For Wireless Sensor Networks And Key Pre-Distribution Schemes, Ramaraju Kalidindi

LSU Master's Theses

Sensor networks are typically unattended because of their deployment in hazardous, hostile or remote environments. This makes the problem of conserving energy at individual sensor nodes challenging. S-MAC and PAMAS are two MAC protocols which periodically put nodes (selected at random) to sleep in order to achieve energy savings. Unlike these protocols, we propose an approach in which node duty cycles (i.e sleep and wake schedules) are based on their criticality. A distributed algorithm is used to find sets of winners and losers, who are then assigned appropriate slots in our TDMA based MAC protocol. We introduce the concept of …

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Sensorsimulator: Simulation Framework For Sensor Networks, Cariappa D. Mallanda Jan 2005

Sensorsimulator: Simulation Framework For Sensor Networks, Cariappa D. Mallanda

LSU Master's Theses

Wireless sensor networks have the potential to become significant subsystems of engineering applications. Before relegating important and safety-critical tasks to such subsystems, it is necessary to understand the dynamic behavior of these subsystems in simulation environments. There is an urgent need to develop a simulation platform that is useful to explore both the networking issues and the distributed computing aspects of wireless sensor networks. Current approaches to simulating wireless sensor networks largely focus on the networking issues. These approaches use well-known network simulation tools that are often difficult to extend to explore distributed computing issues. Discrete-event simulation is a trusted …

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Dynamic Systems And Organizational Decision-Making Processes In Nonprofits, Jennifer S. Tucker, Jennifer C. Cullen, Robert S. Sinclair, Wayne Wakeland Jan 2005

Dynamic Systems And Organizational Decision-Making Processes In Nonprofits, Jennifer S. Tucker, Jennifer C. Cullen, Robert S. Sinclair, Wayne Wakeland

Complex Systems Faculty Publications and Presentations

Social purpose organizations (SPOs) are nonprofit organizations that fulfill their social missions by seeking revenue from traditional business activities. SPOs often face difficulties attracting and retaining organizational members with the necessary mix of social and business skills and values. When coupled with resource limitations and an unstable environment, these issues create serious strategic challenges for leaders of small SPOs. In the present article, the authors describe several systems thinking concepts that may enable leaders to understand and therefore more effectively contend with the challenges of the SPO context. The authors also present a case study demonstrating the utility of systems …

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Future Reasoning Machines: Mind And Body, Brian Duffy, Gregory O'Hare, John Bradley, Bianca Schoen-Phelan Jan 2005

Future Reasoning Machines: Mind And Body, Brian Duffy, Gregory O'Hare, John Bradley, Bianca Schoen-Phelan

Articles

In investing energy in developing reasoning machines of the future, one must abstract away from the specific solutions to specific problems and ask what are the fundamental research questions that should be addressed. This paper aims to revisit some fundamental perspectives and promote new approaches to reasoning machines and their associated form and function. Core aspects are discussed, namely the one-mind-many-bodies metaphor as introduced in the Agent Chameleon work. Within this metaphor the agent’s embodiment form may take many guises with the artificial mind or agent potentially exhibiting a nomadic existence opportunistically migrating between a myriad of instantiated embodiments. We …

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Multivariate Analysis Of Prokaryotic Amino Acid Usage Bias: A Computational Method For Understanding Protein Building Block Selection In Primitive Organisms, Douglas Whitmore Raiford Iii Jan 2005

Multivariate Analysis Of Prokaryotic Amino Acid Usage Bias: A Computational Method For Understanding Protein Building Block Selection In Primitive Organisms, Douglas Whitmore Raiford Iii

Browse all Theses and Dissertations

Organisms expend a significant fraction of their overall energy budget in the creation of proteins, particularly for those that are produced in large quantities. Recent research has demonstrated that genes encoding these proteins are shaped by natural selection to produce the proteins with low cost building blocks (amino acids) whenever possible. The negative correlation between protein production rate and their energetic costs has been established for two bacterial genomes: Escherichia coli and Bacillus subtilis. This thesis provides scientific validation of this theory by automating the analysis and extending the research to additional genomes. Investigations into building block selection are highly …

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Too Quick? Log Analysis Of Quick Links From An Academic Library Website, Jimmy Ghaphery Jan 2005

Too Quick? Log Analysis Of Quick Links From An Academic Library Website, Jimmy Ghaphery

VCU Libraries Faculty and Staff Publications

Since the summer of 2001, Virginia Commonwealth University Libraries has offered a “Quick Links” menu in the top right-hand side of many of its pages. Transaction log files have been run in order to analyze the use of the Quick Links, and several changes have been made based on those logs. This article will discuss those findings and offer contextual ideas for the use of Quick Links in comparison to the rest of the library website.

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Disseminating Usability Design Knowledge Through Ontology-Based Pattern Languages, Scott Henninger, Padmapriya Ashokkumar Jan 2005

Disseminating Usability Design Knowledge Through Ontology-Based Pattern Languages, Scott Henninger, Padmapriya Ashokkumar

School of Computing: Technical Reports

Usability patterns represent knowledge about known ways to design graphical user interfaces that are usable and meet the needs and expectations of users. There is currently a plethora of usability patterns published in books, private repositories and the World-Wide Web. The dominance of pattern discovery efforts has neglected the emerging need to organize the patterns so they can become a proactive resource for developing interfaces. This paper presents an approach using Semantic Web concepts that turns informal patterns into formal representations capable of supporting systematic design methods. Through this method, loosely coupled pattern collections can be turned into strongly coupled …

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