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Articles 871 - 900 of 1285
Full-Text Articles in Computer Sciences
Security Decay: An Entropic Approach To Definition And Understanding, Michael Coole, David J. Brooks
Security Decay: An Entropic Approach To Definition And Understanding, Michael Coole, David J. Brooks
Australian Security and Intelligence Conference
This article discusses the affect decay has within a systems approach used when implementing security strategies, in particular, the theory of defence in depth. Defence in depth is implemented within a risk management framework to reduce an organisation’s identified risks, which could lead to undesirable and unacceptable consequences. Defence in depth aims to link layered security elements into a system to ensure a holistic and functional security system, underpinned by the functions of; deter, detect, delay, response and recovery. For such a system to be commissioned and maintain its commissioning effectiveness, these functions must be performed in their sequential order …
Information Overload: Cctv, Your Networks, Communities And Crime, Vandra Harris, Crispin Harris
Information Overload: Cctv, Your Networks, Communities And Crime, Vandra Harris, Crispin Harris
Australian Security and Intelligence Conference
Electronic surveillance continues to play a central but often unobserved role in contemporary Western societies and attempts to police them. This paper focuses on closed circuit television (CCTV) footage and its technological implications, particularly relating infrastructure and data storage and integrity. While CCTV might appear attractive in augmenting law enforcement systems, the authors argue that the debate on use of CCTV in crime prevention remains incomplete without an effective understanding of the diverse costs. This discussion reveals startling ICT resource needs and associated costs, together with very specific technological capacity. These contribute significantly to the costs of such systems, reinforcing …
Professional Intelligence Judgement Artistry: Some Early Observations, Jeff Corkill
Professional Intelligence Judgement Artistry: Some Early Observations, Jeff Corkill
Australian Security and Intelligence Conference
Intelligence analysis is critical national security and law enforcement function dependant on the intellectual capacity of individual analysts. The practice of intelligence is undertaken in an extremely complex environment often under a veil of secrecy, and where uncertain and deceptive information represents the norm. In order to develop as a profession appropriate constructs with which to explore and explain how analysts process intelligence, make decisions and reach judgements are needed. An improved understanding will offer opportunities to develop appropriate training and professional development for intelligence analysts. This paper introduces the construct of Professional Intelligence Judgement Artistry together with some very …
An Investigation Into Student Reactions Towards Rad Versus Traditional Programming Environments For Novice Developers, Pansy Colkers
An Investigation Into Student Reactions Towards Rad Versus Traditional Programming Environments For Novice Developers, Pansy Colkers
Theses : Honours
The traditional approach to programming using text editors is widely used in many institutions to teach introductory programming. These types of traditional programming environments provide fundamental programming concepts for learning, especially in the context of novice developers. In recent years, teaching institutions have seen a trend towards the introduction of visual "drag-and-drop" rapid application development (RAD) environments for teaching novice programmers. These 'environments capture student interest in programming by allowing the construction of workable programs within a short time frame based on minimal pre-existing coding knowledge. However, some have argued that these visual RAD environments might not be suitable for …
Investigating Data Mining Techniques For Extracting Information From Alzheimer's Disease Data, Vinh Quoc Dang
Investigating Data Mining Techniques For Extracting Information From Alzheimer's Disease Data, Vinh Quoc Dang
Theses : Honours
Data mining techniques have been used widely in many areas such as business, science, engineering and more recently in clinical medicine. These techniques allow an enormous amount of high dimensional data to be analysed for extraction of interesting information as well as the construction of models for prediction. One of the foci in health related research is Alzheimer's disease which is currently a non-curable disease where diagnosis can only be confirmed after death via an autopsy. Using multi-dimensional data and the applications of data mining techniques, researchers hope to find biomarkers that will diagnose Alzheimer's disease as early as possible. …
Raising Heart Rate With Dance Pad Based Computer Games, Martin Masek, Philip Hingston, Matthew Carrigy, Liam Collins, Kazunori Nosaka
Raising Heart Rate With Dance Pad Based Computer Games, Martin Masek, Philip Hingston, Matthew Carrigy, Liam Collins, Kazunori Nosaka
Research outputs pre 2011
No abstract provided.
A Match-Based Approach To Optimize Conformance Test Sequence Generation Using Mp-Method, Jitian Xiao
A Match-Based Approach To Optimize Conformance Test Sequence Generation Using Mp-Method, Jitian Xiao
Research outputs pre 2011
An important issue in protocol conformance testing is how to generate test sequences in an efficient and effective way that achieves the required fault detection coverage. We proposed an approach for finding shorter test sequences for protocol conformance testing based on the Wp method in our previous work. While the method generated good quality test sequences, an extra leading sequence may have to be added if the final test sequence generated was not started from the same starting state of the given FSM. A new approach is proposed in this paper to overcome this problem thus to improve the quality …
Scada Security - Slowly Circling A Disaster Area, Craig Valli, Andrew Woodward
Scada Security - Slowly Circling A Disaster Area, Craig Valli, Andrew Woodward
Research outputs pre 2011
SCADA (Supervisory Control And Data Acquisition) networks control much of the industrialised nations production and supply complexes. Various government reports and investigations have highlighted the vulnerability of these systems. Many of these systems are on private networks which are increasingly being connected to systems that are accessible from other networks such as the Internet. SCADA systems have unique security and operational requirements. However, many of the most basic security measures are missing in these networks. This examines some of these issues and proposes some technologies that could help secure these networks from attack.
Scada Forensics With Snort Ids, Craig Valli
Scada Forensics With Snort Ids, Craig Valli
Research outputs pre 2011
This paper is a research in progress paper outlining an approach using open source IDS (Snort) and honeypot (nepenthes, honeyd) technologies to create a resilient layered defensive approach for SCADA and control systems networks.
Visualisation Of Honeypot Data Using Graphviz And Afterglow, Craig Valli
Visualisation Of Honeypot Data Using Graphviz And Afterglow, Craig Valli
Research outputs pre 2011
This research in progress paper explores the use of Graphviz and Afterglow for the analysis of data emanating from a honeypot system. Honeypot systems gather a wide range of data that is often difficult to readily search for patterns and trends using conventional log file analysis techniques. The data from the honeypots has been statically extracted and processed through Afterglow scripts to produce inputs suitable for use by the DOT graph based tools contained within Graphviz. This paper explores some of the benefits and drawbacks of currently using this type of approach.
Insecurity By Obscurity: A Review Of Soho Router Literature From A Network Security Perspective, Patryk Szewczyk, Craig Valli
Insecurity By Obscurity: A Review Of Soho Router Literature From A Network Security Perspective, Patryk Szewczyk, Craig Valli
Research outputs pre 2011
Because of prevalent threats to SoHo based ADSL Routers, many more devices are compromised. Whilst an end-user may be at fault for not applying the appropriate security mechanisms to counter these threats, vendors should equally share the blame. This paper reveals that the lack of security related content and poor overall design could impact on end-users’ interpretation and willingness to implement security controls on their ADSL router. It argues that whilst the number of threats circulating the Internet is increasing, vendors are not improving their product literature.
A Max-Min Multiobjective Technique To Optimize Model Based Test Suite, Usman Farooq, Chiou P. Lam
A Max-Min Multiobjective Technique To Optimize Model Based Test Suite, Usman Farooq, Chiou P. Lam
Research outputs pre 2011
Generally, quality software production seeks timely delivery with higher productivity at lower cost. Redundancy in a test suite raises the execution cost and wastes scarce project resources. In model-based testing, the testing process starts with earlier software developmental phases and enables fault detection in earlier phases. The redundancy in the test suites generated from models can be detected earlier as well and removed prior to its execution. The paper presents a novel max-min multiobjective technique incorporated into a test suite optimization framework to find a better trade-off between the intrinsically conflicting goals. For illustration two objectives i.e. coverage and size …
Evolving The Quality Of A Model-Based Test Suite, Usman Farooq, Chiou P. Lam
Evolving The Quality Of A Model-Based Test Suite, Usman Farooq, Chiou P. Lam
Research outputs pre 2011
Redundant test cases in newly generated test suites often remain undetected until execution and waste scarce project resources. In model-based testing, the testing process starts early on in the developmental phases and enables early fault detection. The redundancy in the test suites generated from models can be detected earlier as well and removed prior to its execution. The article presents a novel model-based test suite optimization technique involving UML activity diagrams by formulating the test suite optimization problem as an Equality Knapsack Problem. The aim here is the development of a test suite optimization framework that could optimize the model-based …
Iterated Prisoner's Dilemma For Species, Philip Hingston
Iterated Prisoner's Dilemma For Species, Philip Hingston
Research outputs pre 2011
The Iterated Prisoner's Dilemma (IPD) is widely used to study the evolution of cooperation between self-interested agents. Existing work asks how genes that code for cooperation arise and spread through a single-species population of IPD playing agents. In this paper, we focus on competition between different species of agents. Making this distinction allows us to separate and examine macroevolutionary phenomena. We illustrate with some species-level simulation experiments with agents that use well-known strategies, and with species of agents that use team strategies.
The Impact On Organizational Performance Of Contextual Factors, Strategy And Management Control Systems, Nazmi Saeb Jarrar
The Impact On Organizational Performance Of Contextual Factors, Strategy And Management Control Systems, Nazmi Saeb Jarrar
Theses: Doctorates and Masters
This dissertation examined antecedents of the use of contemporary management control systems (MCS) by testing the alignment of strategic and contextual variables with variables of contemporary systems of control in the organization. The study further explored the performance consequences of the implementation of these control systems, and the manner in which strategy can influence the organization’s control culture and management accounting practices. The impact of contextual factors, notably size and structural arrangements, such as decentralization and diversification, on management's choice of control systems were also examined. Hence, the study addressed the need for a better understanding of the association between …
Iphone Forensics Methodology And Tools, Haitham Al-Hajri, Krishnun Sansurooah
Iphone Forensics Methodology And Tools, Haitham Al-Hajri, Krishnun Sansurooah
Australian Digital Forensics Conference
iPhone mobile devices are rapidly overtaking the new generation of mobile phones market, especially among the young generation. It is also gaining a lot of popularity among security specialists and fancy gadgets for collectors. The device is considered as a “special” mobile phone due to its ability to perform multi-operations if not multitasking. It can therefore be used as a entertainment media device, a camera, a GPS, Internet surfing via Wi-Fi technology, Internet Mobile Edge Services, personal organizer, and finally performing as a cell phone with all the usual services including sms, and so forth. However, the difference between the …
A Holistic Scada Security Standard For The Australian Context, Christopher Beggs
A Holistic Scada Security Standard For The Australian Context, Christopher Beggs
Australian Information Warfare and Security Conference
Supervisory Control and Data Acquisition (SCADA) systems which control Australia’s critical infrastructure are currently demonstrating signs of vulnerabilities as they are being interconnected to corporate networks, essentially exposing them to malicious threats. This paper discusses the vulnerabilities associated with SCADA systems, as well as discussing various SCADA standards and initiatives that have been developed in recent years to mitigate such threats. The paper presents the requirement for a holistic SCADA security standard that is practical and feasible for each SCADA industry sector.
Visualisation Of Critical Infrastructure Failure, W D. Wilde, M J. Warren
Visualisation Of Critical Infrastructure Failure, W D. Wilde, M J. Warren
Australian Information Warfare and Security Conference
The paper explores the complexity of critical infrastructure and critical infrastructure failure (CIF), real life examples are used to discuss the complexity involved. The paper then discusses what Visualisation is and how Visualisation can be applied to a security situation, in particular critical infrastructure. The paper concludes by discussing the future direction of the research.
Media, Government And Manipulation: The Cases Of The Two Gulf Wars, William Hutchinson
Media, Government And Manipulation: The Cases Of The Two Gulf Wars, William Hutchinson
Australian Information Warfare and Security Conference
This paper explores the bias and manipulation of the Western mass media during the Gulf wars of 1991 and 2003. The tactics of compliance and the ethics of the press and journalists are examined. The need for a pluralist press is extolled.
Protecting Critical Infrastructure With Games Technology, Adrian Boeing, Martin Masek, Bill Bailey
Protecting Critical Infrastructure With Games Technology, Adrian Boeing, Martin Masek, Bill Bailey
Australian Information Warfare and Security Conference
It is widely recognised that there is a considerable gap in the protection of the national infrastructure. Trying to identify what is in fact ‘critical’ is proving to be very difficult as threats constantly evolve. An interactive prototyping tool is useful in playing out scenarios and simulating the effect of change, however existing simulators in the critical infrastructure area are typically limited in the visual representation and interactivity. To remedy this we propose the use of games technology. Through its use, critical infrastructure scenarios can be rapidly constructed, tested, and refined. In this paper, we highlight the features of games …
Information Sharing: Hackers Vs Law Enforcement, David P. Biros, Mark Weiser, Jim Burkman, Jason Nichols
Information Sharing: Hackers Vs Law Enforcement, David P. Biros, Mark Weiser, Jim Burkman, Jason Nichols
Australian Information Warfare and Security Conference
The fields of information assurance and digital forensics continue to grow in both importance and complexity, spurred on by rapid advancement in digital crime. Contemporary law enforcement professionals facing such issues quickly discover that they cannot be successful while operating in a vacuum and turn to colleagues for assistance. However, there is a clear need for greater IT-based knowledge sharing capabilities amongst law enforcement organizations; an environment historically typified by a silo mentality. A number of efforts have attempted to provide such capabilities, only to be met with limited enthusiasm and difficulties in sustaining continued use. Conversely, the hacker community …
Security Metrics - A Critical Analysis Of Current Methods, Manwinder Kaur, Andy Jones
Security Metrics - A Critical Analysis Of Current Methods, Manwinder Kaur, Andy Jones
Australian Information Warfare and Security Conference
This paper documents and analyses a number of security metrics currently in popular use. These will include government standards and commercial methods of measuring security on networks. It will conclude with a critical look at some of the problems and challenges faced when using the metrics available today, and also with the development of new metrics.
Validating Digital Evidence For Legal Argument, Richard Boddington, Valerie Hobbs, Graham Mann
Validating Digital Evidence For Legal Argument, Richard Boddington, Valerie Hobbs, Graham Mann
Australian Digital Forensics Conference
Digital evidence is now common in legal cases, but the understanding of the legal fraternity as to how far conventional ideas of evidence can be extended into the digital domain lags behind. Evidence determines the truth of an issue but its weight is subject to examination and verification through existing forms of legal argument. There is a need for a practical ‘roadmap’ that can guide the legal practitioner in identifying digital evidence relevant to support a case and in assessing its weight. A vital, but sometimes under estimated stage is that of validating the evidence before evaluating its weight. In …
Industrial Espionage From Residual Data: Risks And Countermeasures, Iain Sutherland
Industrial Espionage From Residual Data: Risks And Countermeasures, Iain Sutherland
Australian Digital Forensics Conference
This paper outlines the possible recovery of potentially sensitive corporate information from residual data. It outlines previous work on the recovery of information contained on second hand hard disks and handheld devices and discusses the risk of individuals conducting industrial espionage by targeting specific organizations. It examines the possible avenues for an attacker to obtain a storage device, then discusses the skill level required to extract information from the storage devices and considers the potential risk to an organization from this particular avenue of attack. The paper concludes by proposing a number of possible countermeasures to enable organizations to reduce …
Forensic Acquisition And Analysis Of The Tomtom One Satellite Navigation Unit, Peter Hannay
Forensic Acquisition And Analysis Of The Tomtom One Satellite Navigation Unit, Peter Hannay
Australian Digital Forensics Conference
Global Positioning Systems are becoming increasingly pervasive. The forensic acquisition and analysis of these units is of great interest as it has the potential to yield historic locational data for these units. Analysis of the TomTom one satellite navigation unit has resulted in a method to reliably extract historic data from these devices in a forensically sound manner.
Issues Common To Australian Critical Infrastructure Providers Scada Networks Discovered Through Computer And Network Vulnerability Analysis, Craig Valli
Australian Digital Forensics Conference
This paper reports on generic issues discovered as a result of conducting computer and network vulnerability assessments (CNVA) on Australian critical infrastructure providers. Generic issues discovered included policy, governance, IT specific such as segregation, patching and updating. Physical security was also lacking in some cases. Another issue was that previous security audits had failed to identify any of these issues. Of major concern is that despite education and awareness programs, and a body of knowledge referring to these issues, they are still occurring. It may be necessary for the federal government to force organisations to undergo computer and network vulnerability …
Trouble In Florida: The Genesis Of Phishing Attacks On Australian Banks, Stephen Mccombie
Trouble In Florida: The Genesis Of Phishing Attacks On Australian Banks, Stephen Mccombie
Australian Digital Forensics Conference
Today Phishing of Internet banks is a well know problem and globally is responsible for more than US$3 billion in fraud annually. To date there has been limited research into the individuals and groups responsible for these attacks. Considerable anecdotal evidence exists to suggest that transnational organised crime groups are involved in Phishing. The involvement of these groups, particularly those operating out of Eastern Europe, is of concern given their sophistication and resources. Earlier work by CRL@mq looked at a month of Phishing against one Australian financial institution and clustering indicative of a small number of groups being responsible was …
Survey And Future Trends Of Efficient Cryptographic Function Implementations On Gpgpus, Adrian Boeing
Survey And Future Trends Of Efficient Cryptographic Function Implementations On Gpgpus, Adrian Boeing
Australian Digital Forensics Conference
Many standard cryptographic functions are designed to benefit from hardware specific implementations. As a result, there have been a large number of highly efficient ASIC and FPGA hardware based implementations of standard cryptographic functions. Previously, hardware accelerated devices were only available to a limited set of users. General Purpose Graphic Processing Units (GPGPUs) have become a standard consumer item and have demonstrated orders of magnitude performance improvements for general purpose computation, including cryptographic functions. This paper reviews the current and future trends in GPU technology, and examines its potential impact on current cryptographic practices.
Preventing The Acquisition Of Data From Virtual Machine Based Secure Portableexecution Environments, Peter James
Preventing The Acquisition Of Data From Virtual Machine Based Secure Portableexecution Environments, Peter James
Australian Digital Forensics Conference
A Virtual Machine (VM) based secure Portable Execution Environment (PEE) provides a safe and secure environment that can be loaded into a host PC and an application executed with a degree of confidence that the application is separated, protected and little or no forensic evidence remains after the application has executed. A VM based secure PEE is characterised as a USB storage device containing a VM with a trusted guest operating system and application(s) which is stored in a protected partition, strong authentication to only allow an authorised user to load the VM into the host PC, and full storage …
Extraction Of User Activity Through Comparison Of Windows Restore Points, Damir Kahvedžić, Tahar Kechadi
Extraction Of User Activity Through Comparison Of Windows Restore Points, Damir Kahvedžić, Tahar Kechadi
Australian Digital Forensics Conference
The extraction of past user activity is one of the main goals in the analysis of digital evidence. In this paper we present a methodology for extracting this activity by comparing multiple Restore Points found in the Windows XP operating system. We concentrate on comparing the copies of the registry hives found within these points. The registry copies represent a snapshot in time of the state of the system. Differences between them can reveal user activity from one instant to another. This approach is implemented and presented as a tool that is able to compare any set of offline hive …