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2013

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Articles 181 - 210 of 8928

Full-Text Articles in Physical Sciences and Mathematics

The Effectiveness Of Internet Activity Erasure Tools To Protect Privacy, Brian Cusack, Andrew Woodward, Scott Butson, Benjamin Leber Dec 2013

The Effectiveness Of Internet Activity Erasure Tools To Protect Privacy, Brian Cusack, Andrew Woodward, Scott Butson, Benjamin Leber

Australian Information Security Management Conference

When most people go to the trouble of getting erasure tools to remove data from their hard drives they expect the job is done correctly. Using erasure tools is a step to protect privacy by assuming the applied tools erase data rather than simply delete data that may be recovered using forensic tools. In this research we tested the performance of the delete function on three web browsers against the performance of eight erasure tools with alarming results. It was found that the erasure tools had almost the same capability to delete data as the web browsers delete function; and …

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Security Analysis And Forensic Investigation Of Home & Commercial Alarm Systemsin New Zealand: Current Research Findings, Alastair Nisbet, Maria Kim Dec 2013

Security Analysis And Forensic Investigation Of Home & Commercial Alarm Systemsin New Zealand: Current Research Findings, Alastair Nisbet, Maria Kim

Australian Digital Forensics Conference

Alarm systems with keypads, sensors and sirens protect our homes and commercial premises from intruders. The reliability of these systems has improved over the past years but the technology has remained largely as it was 3 decades ago. With simple keypads and generally 4 digit PIN codes used for setting and unsetting the alarms, the main protection against a determined intruder is the necessity to choose robust PIN codes. However, with PIN codes chosen that are generally easy to remember and therefore relatively easy to guess, or numbers chosen to follow a pattern on the keypad, the main protection from …

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Towards Detection And Control Of Civilian Unmanned Aerial Vehicles, Matthew Peacock, Michael N. Johnstone Dec 2013

Towards Detection And Control Of Civilian Unmanned Aerial Vehicles, Matthew Peacock, Michael N. Johnstone

Australian Information Warfare and Security Conference

Considering the significant number of non‐military unmanned aerial vehicles (UAVs) that can be purchased to operate in unregulated air space and the range of such devices, the potential for security and privacy problems to arise is significant. This can lead to consequent harm for critical infrastructure in the event of these UAVs being used for criminal or terrorist purposes. Further, if these devices are not being detected, there is a privacy problem to be addressed as well. In this paper we test a specific UAV, the Parrot AR Drone version 2, and present a forensic analysis of tests used to …

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Developing A Mobile Audiometric Sound Booth Application For Apple Ios Devices, Luke J. Brook, Patricia A.H. Williams Dec 2013

Developing A Mobile Audiometric Sound Booth Application For Apple Ios Devices, Luke J. Brook, Patricia A.H. Williams

Australian eHealth Informatics and Security Conference

Hearing loss in Australian children, particularly those in rural and remote areas, is a growing health concern. Resultant deafness has significant impact on the educational and social development of such children. Whilst telehealth had provided other benefits for rural and remote areas, the absence of suitable testing equipment and associated healthcare specialists has meant that there is a gap in this area of child health that could be addressed using a mobile solution. This paper discusses the research and development of a mobile application for testing and diagnosis of hearing loss in children. It is unique in its ability to …

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The Applicability Of Iso/Iec27014:2013 For Use Within General Medical Practice, Rachel J. Mahncke Dec 2013

The Applicability Of Iso/Iec27014:2013 For Use Within General Medical Practice, Rachel J. Mahncke

Australian eHealth Informatics and Security Conference

General practices are increasingly cognizant of their responsibilities in regards to information security, as is evidenced by professional bodies such as the Royal Australian College of General Practitioners (RACGP) who publish the Computer and Information Security Standards (CISS) for General Practices. Information security governance in general medical practice is an emerging area of importance. As such, the CISS (2013) standard incorporates elements of information security governance. The International Organization for Standardization (ISO) released a new global standard in May 2013 entitled, ISO/IEC 27014:2013 Information technology -- Security techniques -- Governance of information security. The release of this revised ISO standard, …

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Cartoons For E-Health Informatics, Moira Sim, Eric Khong, Ashleigh Mcevoy, Toni Wain, Mick Sim, Patricia A.H. Williams Dec 2013

Cartoons For E-Health Informatics, Moira Sim, Eric Khong, Ashleigh Mcevoy, Toni Wain, Mick Sim, Patricia A.H. Williams

Australian eHealth Informatics and Security Conference

Not only is Hepatitis B serology often misunderstood because of its complex serological implications, but advances in medical science have revolutionised screening and treatment of hepatitis B. To maximise such evolution however, this new information must be relayed effectively and efficiently to current and future medical professionals. Cartoons have been well regarded as a teaching tool in a variety of different settings as is the use of web based technology. Therefore the delivery of a cartoon based learning tool, accessed via on-line learning modules was considered a novel and potentially effective way of disseminating new knowledge. To increase health professionals’ …

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The Syrian Calling: Western Jihad Recruitment And Martyrdom, Robyn Torok Dec 2013

The Syrian Calling: Western Jihad Recruitment And Martyrdom, Robyn Torok

Australian Counter Terrorism Conference

The crisis in Syria has attracted worldwide attention as well as condemnation and has degraded into a violent civil conflict. Not only are there more than a thousand rebel groups including a number of hard‐line jihadist groups operating within Syria, but these jihadist groups are attracting a significant number of foreigners including Australians. This study examined social media discourses from Facebook and embedded YouTube links for recruiting Westerners to the war in Syria. Findings suggest that the perceived inaction of the international community and in particular the West coupled with the atrocities committed has become a platform for jihadi recruitment. …

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Keeney, Sean Carpenter (Sc 1259), Manuscripts & Folklife Archives Dec 2013

Keeney, Sean Carpenter (Sc 1259), Manuscripts & Folklife Archives

Manuscript Collection Finding Aids

Finding aid only for Manuscripts Small Collection 1259. “My Experience of ‘Andrew,’” by Sean Keeney, Dade County, Florida, relating the effect on him and his family of Hurricane Andrew, which struck the area on 24 August 1992. Includes biographical data on Keeney.

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An Investigation Into The Efficiency Of Forensic Data Erasure Tools For Removable Usb Flash Memory Storage Devices, Krishnun Sansurooah, Haydon Hope, Hani Almutairi, Fayadh Alnazawi, Yunhan Jiang Dec 2013

An Investigation Into The Efficiency Of Forensic Data Erasure Tools For Removable Usb Flash Memory Storage Devices, Krishnun Sansurooah, Haydon Hope, Hani Almutairi, Fayadh Alnazawi, Yunhan Jiang

Australian Digital Forensics Conference

Securely erasing data is of key importance to anyone that is concerned with the security of their sensitive information, whether an individual or an organization. Simply deleting the data in question or formatting the storage device is not enough to ensure that the data cannot be recovered. Furthermore, with the uptake of Universal Serial Bus drives (USBs) flash memory based storage devices have replaced previous portable secondary storage media. Therefore, it is of a major concern whether these tools and products developed for securely erasing data secondary storage Hard Disk Drives (HDDs) would be as efficient when targeting the USB …

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Volatile Memory Acquisition Tools – A Comparison Across Taint And Correctness, William Campbell Dec 2013

Volatile Memory Acquisition Tools – A Comparison Across Taint And Correctness, William Campbell

Australian Digital Forensics Conference

The growth in volatile memory forensics has steadily increased in recent times. With this growth comes a need to test the tools associated with this practise. Although there appears to be a large amount of effort in testing static memory capture tools, there is perhaps less so for volatile memory capture. This paper describes the attempts at categorizing criteria for testing, and then introduces and extends upon a methodology proposed by Lempereur and colleagues in 2012. Four tools (Windows Memory Reader, WinPmem, FTK Imager and DumpIt) are tested against two criteria (impact and completeness). WMR and DumpIt were found to …

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Verification Of Primitive Sub Ghz Rf Replay Attack Techniques Based On Visual Signal Analysis, Maxim Chernyshev Dec 2013

Verification Of Primitive Sub Ghz Rf Replay Attack Techniques Based On Visual Signal Analysis, Maxim Chernyshev

Australian Digital Forensics Conference

As the low cost options for radio traffic capture, analysis and transmission are becoming available, some security researchers have developed open source tools that potentially make it easier to assess the security of the devices that rely on radio communications without the need for extensive knowledge and understanding of the associated concepts. Recent research in this area suggests that primitive visual analysis techniques may be applied to decode selected radio signals successfully. This study builds upon the previous research in the area of sub GHz radio communications and aims to outline the associated methodology as well as verify some of …

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Acquisition Of Evidence From Network Intrusion Detection Systems, Brian Cusack, Muteb Alqahtani Dec 2013

Acquisition Of Evidence From Network Intrusion Detection Systems, Brian Cusack, Muteb Alqahtani

Australian Digital Forensics Conference

The literature reviewed suggests that Network Intrusion Systems (NIDS) are valuable tools for the detection of malicious behaviour in network environments. NIDS provide alerts and the trigger for rapid responses to attacks. Our previous research had shown that NIDS performance in wireless networks had a wide variation under different workloads. In this research we chose wired networks and asked the question: What is the evidential value of NIDS? Three different NIDS were tested under two different attacks and with six different packet rates. The results were alarming. As the work loading increased the NIDS detection capability fell rapidly and as …

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Steganographic Checks In Digital Forensic Investigation: A Social Networking Case, Brian Cusack, Aimie Chee Dec 2013

Steganographic Checks In Digital Forensic Investigation: A Social Networking Case, Brian Cusack, Aimie Chee

Australian Digital Forensics Conference

Steganography is an ancient art that has received a mega boost in the digital age. Electronic communications are easily accessible by most people and have a wide range of opportunities to embed secret messages in a diverse range of cover objects. Our research questions were: What can an investigator do to check for hidden messages in social media? And, how much searching is enough? The testing was conducted in replicated social networking sites and digital images were selected as the cover objects. The research findings showed that steganography is as easy as sending an email and not much more difficult …

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A Forensic Analysis And Comparison Of Solid State Drive Data Retention With Trim Enabled File Systems, Alastair Nisbet, Scott Lawrence, Matthew Ruff Dec 2013

A Forensic Analysis And Comparison Of Solid State Drive Data Retention With Trim Enabled File Systems, Alastair Nisbet, Scott Lawrence, Matthew Ruff

Australian Digital Forensics Conference

Solid State Drives offer significant advantages over traditional hard disk drives. No moving parts, superior resistance to shock, reduced heat generation and increased battery life for laptops. However, they are susceptible to cell failure within the chips. To counter this, wear levelling is used so that cells are utilised for data at approximately the same rate. An improvement to the original wear levelling routine is TRIM, which further enhances the lifetime of the cells by allowing the garbage collection process as one operation rather than an on going process. The advantages of TRIM for the user is that it increases …

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A Privacy-Preserving Framework For Personally Controlled Electronic Health Record (Pcehr) System, Mahmuda Begum, Quazi Mamun, Mohammed Kaosar Dec 2013

A Privacy-Preserving Framework For Personally Controlled Electronic Health Record (Pcehr) System, Mahmuda Begum, Quazi Mamun, Mohammed Kaosar

Australian eHealth Informatics and Security Conference

The electronic health record (eHR) system has recently been considered one of the biggest advancements in healthcare services. A personally controlled electronic health record (PCEHR) system is proposed by the Australian government to make the health system more agile, secure, and sustainable. Although the PCEHR system claims the electronic health records can be controlled by the patients, healthcare professionals and database/system operators may assist in disclosing the patients’ eHRs for retaliation or other ill purposes. As the conventional methods for preserving the privacy of eHRs solely trust the system operators, these data are vulnerable to be exploited by the authorised …

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Ehealth Security Australia: The Solution Lies With Frameworks And Standards, Bryan Foster, Yvette Lejins Dec 2013

Ehealth Security Australia: The Solution Lies With Frameworks And Standards, Bryan Foster, Yvette Lejins

Australian eHealth Informatics and Security Conference

Security is a key foundation for eHealth in Australia, driving benefits in healthcare quality, safety, and efficiency towards improved health outcomes for all Australians. To this end, the National eHealth Transition Authority (NEHTA), the Royal Australian College of General Practitioners (RACGP), and Standards Australia have each produced security-related publications to assist Australian healthcare organisations protect their data. These publications provide standards, tools, and guides for the healthcare industry to build and implement secure systems that protect patient data and eHealth-related assets, while providing the provenance required to help ensure patient safety and privacy. This paper outlines some of the current …

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A Rapidly Moving Target: Conformance With E-Health Standards For Mobile Computing, Patricia A.H. Williams, Vincent B. Mccauley Dec 2013

A Rapidly Moving Target: Conformance With E-Health Standards For Mobile Computing, Patricia A.H. Williams, Vincent B. Mccauley

Australian eHealth Informatics and Security Conference

The rapid adoption and evolution of mobile applications in health is posing significant challenges in terms of standards development, standards adoption, patient safety, and patient privacy. This is a complex continuum to navigate. There are many competing demands from the standards development process, to the use by clinicians and patients. In between there are compliance and conformance measures to be defined to ensure patient safety, effective use with integration into clinical workflow, and the protection of data and patient privacy involved in data collection and exchange. The result is a composite and intricate mixture of stakeholders, legislation, and policy together …

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A Study On Information Induced Medication Errors, Rebecca Hermon, Patricia A.H. Williams Dec 2013

A Study On Information Induced Medication Errors, Rebecca Hermon, Patricia A.H. Williams

Australian eHealth Informatics and Security Conference

Preventable medical adverse events are a serious concern for healthcare. Medication errors form a significant part of these concerns and it is evident that these errors can have serious consequences such as death or disability. Many medication errors are a consequence of information failure. Therefore to prevent such adverse events, the associated information flow must be understood. This research used a systematic review methodology to conduct an analysis of medication error as a result of information failure. Its aim was to suggest solutions on reducing information induced medication errors. The results indicate that is apparent that human error such as …

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The Contemporary Australian Intelligence Domain - A Multi Dimension Examination, Alan Davies, Jeff Corkill Dec 2013

The Contemporary Australian Intelligence Domain - A Multi Dimension Examination, Alan Davies, Jeff Corkill

Australian Security and Intelligence Conference

In the complex and interconnected post 9/11 world the roles and functions of intelligence have evolved beyond being a secret capability of governments focused on national security needs. Intelligence has become recognised as a critical function necessary to support decision making across the full breadth of government and corporate activity. The concept of an intelligence community being purely national security centric and bounded by secrecy has become limited. Intelligence in support of decision making has become a far broader domain than previously believed. This paper investigates the degree of intelligence embedded‐ness across government agencies and departments at the federal, state …

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Physical Security Barrier Selection: A Decision Support Analysis, Agnieszka Kiszelewska, Michael Coole Dec 2013

Physical Security Barrier Selection: A Decision Support Analysis, Agnieszka Kiszelewska, Michael Coole

Australian Security and Intelligence Conference

Physical security controls aim to reduce risk through their ability to systematically deter, or detect, delay and respond against deviant acts within a risk context. Holistically the aim is to increase the difficulty and risks while reducing the rewards associated with an act of deviance as captured in Clarke’s Situational Crime Prevention (SCP) framework. The efficacious implementation of such controls commensurate with the risk context requires a considered undertaking referred as informed decision‐making. Informed decision‐making is effective when a suitable choice is made accordant with base rate data that achieves its defined objectives within costs versus benefits framework. The study …

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3d Visual Method Of Variant Logic Construction For Random Sequence, Huan Wang, Jeffrey Zheng Dec 2013

3d Visual Method Of Variant Logic Construction For Random Sequence, Huan Wang, Jeffrey Zheng

Australian Information Warfare and Security Conference

As Internet security threats continue to evolve, in order to ensure information transmission security, various encrypt and decrypt has been used in channel coding and decoding of data communication. While cryptography requires a very high degree of apparent randomness, Random sequences play an important role in cryptography. Both CA (Cellular Automata) and RC4 contain pseudo‐random number generators and may have intrinsic properties respectively. In this paper, a 3D visualization model (3DVM) is proposed to display spatial characteristics of the random sequences from CA or RC4 keystream. Key components of this model and core mechanism are described. Every module and their …

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Exchanging Demands: Weaknesses In Ssl Implementations For Mobile Platforms, Peter Hannay, Clinton Carpene, Craig Valli, Andrew Woodward, Mike Johnstone Dec 2013

Exchanging Demands: Weaknesses In Ssl Implementations For Mobile Platforms, Peter Hannay, Clinton Carpene, Craig Valli, Andrew Woodward, Mike Johnstone

Australian Information Security Management Conference

The ActiveSync protocol’s implementation on some embedded devices leaves clients vulnerable to unauthorised remote policy enforcement. This paper discusses a proof of concept attack against the implementation of ActiveSync in common Smart phones including Android devices and iOS devices. A two‐phase approach to exploiting the ActiveSync protocol is introduced. Phase 1 details the usage of a man‐in‐the‐middle attack to gain a vantage point over the client device, whilst Phase 2 involves spoofing the server‐side ActiveSync responses to initiate the unauthorised policy enforcement. These vulnerabilities are demonstrated by experiment, highlighting how the system can be exploited to perform a remote factory …

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A Simulation-Based Study Of Server Location Selection Rules In Manets Utilising Threshold Cryptography, Alastair Nisbet Dec 2013

A Simulation-Based Study Of Server Location Selection Rules In Manets Utilising Threshold Cryptography, Alastair Nisbet

Australian Information Security Management Conference

Truly Ad Hoc wireless networks where a spontaneous formation of a network occurs and there is no prior knowledge of nodes to each other present significant security challenges, especially as entirely online configuration of nodes with encryption keys must be performed. Utilising threshold cryptography in this type of MANET can greatly increase the security by requiring servers to collaborate to form a single Certificate Authority (CA). In this type of CA responsibility for certificate services is shared between a threshold of servers, greatly increasing security and making attack against the CA considerably more difficult. Choosing which nodes to take on …

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The Halo Occupation Distribution Of X-Ray-Bright Active Galactic Nuclei: A Comparison With Luminous Quasars, Jonathan Richardson, Suchetana Chatterjee, Zheng Zheng, Adam D. Myers, Ryan Hickox Dec 2013

The Halo Occupation Distribution Of X-Ray-Bright Active Galactic Nuclei: A Comparison With Luminous Quasars, Jonathan Richardson, Suchetana Chatterjee, Zheng Zheng, Adam D. Myers, Ryan Hickox

Dartmouth Scholarship

We perform halo occupation distribution (HOD) modeling of the projected two-point correlation function (2PCF) of high-redshift (z~1.2) X-ray-bright active galactic nuclei (AGN) in the XMM-COSMOS field measured by Allevato et al. The HOD parameterization is based on low-luminosity AGN in cosmological simulations. At the median redshift of z~1.2, we derive a median mass of (1.02+0.21/-0.23)x10^{13} Msun/h for halos hosting central AGN and an upper limit of ~10% on the AGN satellite fraction. Our modeling results indicate (at the 2.5-sigma level) that X-ray AGN reside in more massive halos compared to more bolometrically luminous, optically-selected quasars at similar redshift. The modeling …

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Lack Of Rnase L Attenuates Macrophage Functions, Xin Yi, Chun Zeng, Hongli Liu, Xiaoli Chen, Ping Zhang, Boo Seok Yun, Ge Jin, Aimin Zhou Dec 2013

Lack Of Rnase L Attenuates Macrophage Functions, Xin Yi, Chun Zeng, Hongli Liu, Xiaoli Chen, Ping Zhang, Boo Seok Yun, Ge Jin, Aimin Zhou

Chemistry Faculty Publications

Background: Macrophages are one of the major cell types in innate immunity against microbial infection. It is believed that the expression of proinflammatory genes such as tumor necrosis factor-α (TNF-α), interleukin (IL)-1β, IL–6, and cyclooxygenase-2 (Cox-2) by macrophages is also crucial for activation of both innate and adaptive immunities. RNase L is an interferon (IFN) inducible enzyme which is highly expressed in macrophages. It has been demonstrated that RNase L regulates the expression of certain inflammatory genes. However, its role in macrophage function is largely unknown. Methodology: Bone marrow-derived macrophages (BMMs) were generated from RNase L+/+and −/− mice. The migration …

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A Comparison Of Information Security Curricula In China And The Usa, Huaying Chen, Sean B. Maynard, Atif Ahmad Dec 2013

A Comparison Of Information Security Curricula In China And The Usa, Huaying Chen, Sean B. Maynard, Atif Ahmad

Australian Information Security Management Conference

Information Security (InfoSec) education varies in its content, focus and level of technicality across the world. In this paper we investigate the differences between graduate InfoSec programs in top universities in China and in the United States of America (USA). In China, curriculum emphasises Telecommunication, Computer Science and InfoSec Technology, whilst in the USA in addition to Computer Science and InfoSec Technology the curriculum also emphasises Enterprise‐level Security Strategy and Policy, InfoSec Management, and Cyber Law. The differences are significant and will have a profound impact on both the perceptions and capabilities of future generations of information security professionals on …

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Is Emergency Management Considered A Component Of Business Continuity Management?, Kenny Frohde, David J. Brooks Dec 2013

Is Emergency Management Considered A Component Of Business Continuity Management?, Kenny Frohde, David J. Brooks

Australian Security and Intelligence Conference

Emergency Management (EM) and Business Continuity Management (BCM) frameworks incorporate measures of strategic and operational aspects. Defined within a number of Australian and international standards as well as guidelines, such concepts may be integrated to provide increased resilience for disruptive events. However, it has been found that there is some degree of misalignment of concept integration amongst security and EM bodies of knowledge. In line with cognitive psychology exemplar‐based concepts, such misalignments may be associated with a lack of precision in communality in the approach to EM and BCM. This article presents stage 1 of a two‐stage study. Stage 1 …

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The Femur Of Orrorin Tugenensis Exhibits Morphometric Affinities With Both Miocene Apes And Later Hominins, Sergio Almecija, Melissa Tallman, David M. Alba, Marta Pina, Salvador Moya-Sola, William L. Jungers Dec 2013

The Femur Of Orrorin Tugenensis Exhibits Morphometric Affinities With Both Miocene Apes And Later Hominins, Sergio Almecija, Melissa Tallman, David M. Alba, Marta Pina, Salvador Moya-Sola, William L. Jungers

Peer Reviewed Articles

Orrorin tugenensis (Kenya, ca. 6 Ma) is one of the earliest putative hominins. Its proximal femur, BAR 1002′00, was originally described as being very human-like, although later multivariate analyses showed an australopith pattern. However, some of its traits (for example, laterally protruding greater trochanter, medially oriented lesser trochanter and presence of third trochanter) are also present in earlier Miocene apes. Here, we use geometric morphometrics to reassess the morphological affinities of BAR 1002′00 within a large sample of anthropoids (including fossil apes and hominins) and reconstruct hominoid proximal femur evolution using squared-change parsimony. Our results indicate that both hominin …

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Marine Diatom Assemblage Variation Across Pleistocene Glacial–Interglacial Transitions And Neogene Diatom Biostratigraphy Of Site C9001, Nw Pacific Ocean, Marcella K. Purkey Dec 2013

Marine Diatom Assemblage Variation Across Pleistocene Glacial–Interglacial Transitions And Neogene Diatom Biostratigraphy Of Site C9001, Nw Pacific Ocean, Marcella K. Purkey

Department of Earth and Atmospheric Sciences: Dissertations, Theses, and Student Research

In 2006, D/V-Chikyu cruise CK06-06 drilled Hole C9001C at Site C9001 in the Northwest Pacific Ocean, 80 km east of the Shimokita Peninsula, Japan. An existing chronostratigraphic framework provides a continuous glacial-interglacial (GI) climate record from which a diatom record of paleoenvironmental changes was developed across several GI cycles. Species counts, diatom temperature values, calculated sea-surface temperatures (SST) and factor analysis were produced for each sample and calibrated to prior diatom studies in this region. These features were used to characterize and compare interglacial maxima of Marine Isotope Stages (MIS) 1, 5e, 9 and 11 and transitions from the preceding …

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Minimum Rank Problems For Cographs, Nicole Andrea Malloy Dec 2013

Minimum Rank Problems For Cographs, Nicole Andrea Malloy

Theses and Dissertations

Let G be a simple graph on n vertices, and let S(G) be the class of all real-valued symmetric nxn matrices whose nonzero off-diagonal entries occur in exactly the positions corresponding to the edges of G. The smallest rank achieved by a matrix in S(G) is called the minimum rank of G, denoted mr(G). The maximum nullity achieved by a matrix in S(G) is denoted M(G). For each graph G, there is an associated minimum rank class, MR(G) consisting of all matrices A in S(G) with rank A = mr(G). Although no restrictions are applied to the diagonal entries of …

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