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Full-Text Articles in Physical Sciences and Mathematics

Image Similarity Using Dynamic Time Warping Of Fractal Features, Ahmed Ibrahim, Craig Valli Jan 2015

Image Similarity Using Dynamic Time Warping Of Fractal Features, Ahmed Ibrahim, Craig Valli

Australian Digital Forensics Conference

Hashing algorithms such as MD/SHA variants have been used for years by forensic investigators to look for known artefacts of interest such as malicious files. However, such hashing algorithms are not effective when their hashes change with the slightest alteration in the file. Fuzzy hashing overcame this limitation to a certain extent by providing a close enough measure for slight modifications. As such, image forensics is an essential part of any digital crime investigation, especially in cases involving child pornography. Unfortunately such hashing algorithms can be thwarted easily by operations as simple as saving the original file in a different …


A Survey And Method For Analysing Soho Router Firmware Currency, Nikolai Hampton, Patryk Szewczyk Jan 2015

A Survey And Method For Analysing Soho Router Firmware Currency, Nikolai Hampton, Patryk Szewczyk

Australian Information Security Management Conference

Network routers are a core component of contemporary SoHo networks. The firmware within these devices provides routing, control and monitoring functionality coupled with mechanisms to ensure a secure and reliable network. End-users are typically reliant on manufacturers to provide timely firmware updates to mitigate known vulnerabilities. An investigation was undertaken to identify the underlying software components used in the firmware of currently available, SoHo network devices used in Australia. Firmware from 37 devices was deconstructed to identify potential security issues; in each instance, the firmware images were found to include vulnerabilities, obsolete software and out-of-date operating system components. 95% of …


Loyalty Cards And The Problem Of Captcha: 2nd Tier Security And Usability Issues For Senior Citizens, David M. Cook, Apoorv Kumar, Charwina Unmar-Satiah Jan 2015

Loyalty Cards And The Problem Of Captcha: 2nd Tier Security And Usability Issues For Senior Citizens, David M. Cook, Apoorv Kumar, Charwina Unmar-Satiah

Australian Information Security Management Conference

Information Security often works in antipathy to access and useability in communities of older citizens. Whilst security features are required to prevent the disclosure of information, some security tools have a deleterious effect upon users, resulting in insecure practices. Security becomes unfit for purpose where users prefer to abandon applications and online benefits in favour of non-digital authentication and verification requirements. For some, the ability to read letters and symbols from a distorted image is a decidedly more difficult task than for others, and the resulting level of security from CAPTCHA tests is not consistent from person to person. This …


Analysis Into Developing Accurate And Efficient Intrusion Detection Approaches, Priya Rabadia, Craig Valli Jan 2015

Analysis Into Developing Accurate And Efficient Intrusion Detection Approaches, Priya Rabadia, Craig Valli

Australian Digital Forensics Conference

Cyber-security has become more prevalent as more organisations are relying on cyber-enabled infrastructures to conduct their daily actives. Subsequently cybercrime and cyber-attacks are increasing. An Intrusion Detection System (IDS) is a cyber-security tool that is used to mitigate cyber-attacks. An IDS is a system deployed to monitor network traffic and trigger an alert when unauthorised activity has been detected. It is important for IDSs to accurately identify cyber-attacks against assets on cyber-enabled infrastructures, while also being efficient at processing current and predicted network traffic flows. The purpose of the paper is to outline the importance of developing an accurate and …


Timing Attack Detection On Bacnet Via A Machine Learning Approach, Michael N. Johnstone, Matthew Peacock, J I. Den Hartog Jan 2015

Timing Attack Detection On Bacnet Via A Machine Learning Approach, Michael N. Johnstone, Matthew Peacock, J I. Den Hartog

Australian Information Security Management Conference

Building Automation Systems (BAS), alternatively known as Building Management Systems (BMS), which centralise the management of building services, are often connected to corporate networks and are routinely accessed remotely for operational management and emergency purposes. The protocols used in BAS, in particular BACnet, were not designed with security as a primary requirement, thus the majority of systems operate with sub-standard or non-existent security implementations. As intrusion is thus likely easy to achieve, intrusion detection systems should be put in place to ensure they can be detected and mitigated. Existing intrusion detection systems typically deal only with known threats (signature-based approaches) …