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Information Security

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Full-Text Articles in Computer Sciences

An Information Security Awareness Capability Model (Isacm), Robert Poepjes, Michael Lane Dec 2012

An Information Security Awareness Capability Model (Isacm), Robert Poepjes, Michael Lane

Australian Information Security Management Conference

A lack of information security awareness within some parts of society as well as some organisations continues to exist today. Whilst we have emerged from the threats of late 1990s of viruses such as Code Red and Melissa, through to the phishing emails of the mid 2000’s and the financial damage some such as the Nigerian scam caused, we continue to react poorly to new threats such as demanding money via SMS with a promise of death to those who won’t pay. So is this lack of awareness translating into problems within the workforce? There is often a lack of …


Human-Readable Real-Time Classifications Of Malicious Executables, Anselm Teh, Arran Stewart Dec 2012

Human-Readable Real-Time Classifications Of Malicious Executables, Anselm Teh, Arran Stewart

Australian Information Security Management Conference

Shafiq et al. (2009a) propose a non–signature-based technique for detecting malware which applies data mining techniques to features extracted from executable files. Their technique has a high level of accuracy, a low false positive rate, and a speed on par with commercial anti-virus products. One portion of their technique uses a multi-layer perceptron as a classifier, which provides little insight into the reasons for classification. Our experience is that network security analysts prefer tools which provide human-comprehensible reasons for a classification, rather than operating as “black boxes”. We therefore build on the results of Shafiq et al. by demonstrating a …


Implementing A Secure Academic Grid System - A Malaysian Case, Mohd Samsu Sajat, Suhaidi Hassan, Adi Affandi Ahmad, Ali Yusny Daud, Amran Ahmad Dec 2012

Implementing A Secure Academic Grid System - A Malaysian Case, Mohd Samsu Sajat, Suhaidi Hassan, Adi Affandi Ahmad, Ali Yusny Daud, Amran Ahmad

Australian Information Security Management Conference

Computational grids have become very popular in the recent times due to their capabilities and flexibility in handling large computationally intensive jobs. When it comes to the implementation of practical grid systems, security plays a major role due to the confidentiality of the information handled and the nature of the resources employed. Also due to the complex nature of the grid operations, grid systems face unique security threats compared to other distributed systems. This paper describes how to implement a secure grid system with special emphasis on the steps to be followed in obtaining, implementing and testing PKI certificates.


Web-Based Risk Analysis For Home Users, R. T. Magaya, N. L. Clarke Dec 2012

Web-Based Risk Analysis For Home Users, R. T. Magaya, N. L. Clarke

Australian Information Security Management Conference

The advancement of the Internet has provided access to a wide variety of online services such as banking, e-commerce, social networking and entertainment. The wide availability and popularity of the Internet has also led to the rise in risks and threats to users, as criminals have taken an increasingly active role in abusing innocent users. Current risk analysis tools, techniques and methods available do not cater for home users but are tailored for large organisations. The tools require expertise to use them and they are expensive to purchase. What is available for home users are generic information portals that provide …


An Investigation Into The Wi-Fi Protected Setup Pin Of The Linksys Wrt160n V2, Symon Aked, Christopher Bolan, Murray Brand Dec 2012

An Investigation Into The Wi-Fi Protected Setup Pin Of The Linksys Wrt160n V2, Symon Aked, Christopher Bolan, Murray Brand

Australian Information Security Management Conference

Wi-Fi Protected Setup (WPS) is a method of allowing a consumer to set up a secure wireless network in a user friendly way. However, in December 2011 it was discovered that a brute force attack exists that reduces the WPS key space from 108 to 104+103. This resulted in a proof of concept tool that was able to search all possible combinations of PINs within a few days.This research presents a methodology to test wireless devices to determine their susceptibility to the external registrar PIN authentication design vulnerability. A number of devices were audited, and the Linksys WRT160N v2 router …


Exposing Potential Privacy Issues With Ipv6 Address Construction, Clinton Carpene, Andrew Woodward Dec 2012

Exposing Potential Privacy Issues With Ipv6 Address Construction, Clinton Carpene, Andrew Woodward

Australian Information Security Management Conference

The usage of 128 bit addresses with hexadecimal representation in IPv6 poses significant potential privacy issues. This paper discusses the means of allocating IPv6 addresses, along with the implications each method may have upon privacy in different usage scenarios. The division of address space amongst the global registries in a hierarchal fashion can provide geographical information about the location of an address, and its originating device. Many IPv6 address configuration methods are available, including DHCPv6, SLAAC (with or without privacy extensions), and Manual assignment. These assignment techniques are dissected to expose the identifying characteristics of each technique. It is seen …


Does The Android Permission System Provide Adequate Information Privacy Protection For End-Users Of Mobile Apps?, Michael Lane Dec 2012

Does The Android Permission System Provide Adequate Information Privacy Protection For End-Users Of Mobile Apps?, Michael Lane

Australian Information Security Management Conference

This paper investigates the Android permission system and its adequacy in alerting end-users of potential information privacy risks in an app. When an end-user seeks to install an app, they are presented with the required permissions and make a supposedly informed decision as to whether to install that app based on the permissions presented. The results from an analysis of ten popular apps indicate a number of permissions that pose potential information privacy risks of which most end-users are likely to be unaware. The Android permission system is complex and difficult for end-users to comprehend and effectively evaluate the potential …


The Mobile Execution Environment: A Secure And Non-Intrusive Approach To Implement A Bring You Own Device Policy For Laptops, Peter James, Don Griffiths Dec 2012

The Mobile Execution Environment: A Secure And Non-Intrusive Approach To Implement A Bring You Own Device Policy For Laptops, Peter James, Don Griffiths

Australian Information Security Management Conference

Bring Your Own Device (BYOD) has become an established business practice, however the practice can increase an organisation’s information security risks. The implementation of a BYOD policy for laptops must consider how the information security risks can be mitigated or managed. The selection of an appropriate secure laptop software configuration is an important part of the information security risk mitigation/management strategy. This paper considers how a secure laptop software configuration, the Mobile Execution Environment (MEE) can be used to minimise risks when a BYOD policy for laptops is implemented. In this paper the security and business risks associated with the …


Territorial Behavior And The Economics Of Botnets, Craig S. Wright Dec 2012

Territorial Behavior And The Economics Of Botnets, Craig S. Wright

Australian Information Security Management Conference

This paper looks at the economics associated with botnets. This research can be used to calculate territorial sizes for online criminal networks. Looking at the types of systems we can compare the time required to maintain the botnet against the benefits received. In doing this it will be possible to formulate economic defence strategies that reduce the benefits received through the control of the botnet. We look at the decision to be territorial or not from the perspective of the criminal bot-herder. This is extended to an analysis of territorial size. The criminal running a botnet seeks to maximize profit. …


Semi-Automated Verification Of Defense Against Sql Injection In Web Applications, Kaiping Liu, Hee Beng Kuan Tan, Lwin Khin Shar Dec 2012

Semi-Automated Verification Of Defense Against Sql Injection In Web Applications, Kaiping Liu, Hee Beng Kuan Tan, Lwin Khin Shar

Research Collection School Of Computing and Information Systems

Recent reports reveal that majority of the attacks to Web applications are input manipulation attacks. Among these attacks, SQL injection attack malicious input is submitted to manipulate the database in a way that was unintended by the applications' developers is one such attack. This paper proposes an approach for assisting to code verification process on the defense against SQL injection. The approach extracts all such defenses implemented in code. With the use of the proposed approach, developers, testers or auditors can then check the defenses extracted from code to verify their adequacy. We have evaluated the feasibility, effectiveness, and usefulness …


Investigating Intelligent Agents In A 3d Virtual World, Yilin Kang, Fiona Fui-Hoon Nah, Ah-Hwee Tan Dec 2012

Investigating Intelligent Agents In A 3d Virtual World, Yilin Kang, Fiona Fui-Hoon Nah, Ah-Hwee Tan

Research Collection School Of Computing and Information Systems

Web 3.0 involves " intelligent " web applications that utilize natural language processing, machine-based learning and reasoning, and intelligent techniques to analyze and understand user behavior. In this research, we empirically assess a specific form of Web 3.0 application in the form of intelligent agents that offer assistance to users in the virtual world. Using media naturalness theory, we hypothesize that the use of intelligent agents in the virtual world can enhance user experience by offering a more natural way of communication and assistance to users. We are interested to test if media naturalness theory holds in the context of …


Ibinhunt: Binary Hunting With Inter-Procedural Control Flow, Jiang Ming, Meng Pan, Debin Gao Dec 2012

Ibinhunt: Binary Hunting With Inter-Procedural Control Flow, Jiang Ming, Meng Pan, Debin Gao

Research Collection School Of Computing and Information Systems

Techniques have been proposed to find the semantic differences between two binary programs when the source code is not available. Analyzing control flow, and in particular, intra-procedural control flow, has become an attractive technique in the latest binary diffing tools since it is more resistant to syntactic, but non-semantic, differences. However, this makes such techniques vulnerable to simple function obfuscation techniques (e.g., function inlining) attackers any malware writers could use. In this paper, we first show function obfuscation as an attack to such binary diffing techniques, and then propose iBinHunt which uses deep taint and automatic input generation to find …


Scalable Malware Clustering Through Coarse-Grained Behavior Modeling, Mahinthan Chandramohan, Hee Beng Kuan Tan, Lwin Khin Shar Nov 2012

Scalable Malware Clustering Through Coarse-Grained Behavior Modeling, Mahinthan Chandramohan, Hee Beng Kuan Tan, Lwin Khin Shar

Research Collection School Of Computing and Information Systems

Anti-malware vendors receive several thousand new malware (malicious software) variants per day. Due to large volume of malware samples, it has become extremely important to group them based on their malicious characteristics. Grouping of malware variants that exhibit similar behavior helps to generate malware signatures more efficiently. Unfortunately, exponential growth of new malware variants and huge-dimensional feature space, as used in existing approaches, make the clustering task very challenging and difficult to scale. Furthermore, malware behavior modeling techniques proposed in the literature do not scale well, where malware feature space grows in proportion with the number of samples under examination. …


Audit Mechanisms For Provable Risk Management And Accountable Data Governance, Jeremiah Blocki, Nicolas Christin, Anupam Datta, Arunesh Sinha Nov 2012

Audit Mechanisms For Provable Risk Management And Accountable Data Governance, Jeremiah Blocki, Nicolas Christin, Anupam Datta, Arunesh Sinha

Research Collection School Of Computing and Information Systems

Organizations that collect and use large volumes of personal information are expected under the principle of accountable data governance to take measures to protect data subjects from risks that arise from inapproriate uses of this information. In this paper, we focus on a specific class of mechanisms—audits to identify policy violators coupled with punishments—that organizations such as hospitals, financial institutions, and Web services companies may adopt to protect data subjects from privacy and security risks stemming from inappropriate information use by insiders. We model the interaction between the organization (defender) and an insider (adversary) during the audit process as a …


(Strong) Multidesignated Verifiers Signatures Secure Against Rogue Key Attack, Yunmei Zhang, Man Ho Au, Guomin Yang, Willy Susilo Nov 2012

(Strong) Multidesignated Verifiers Signatures Secure Against Rogue Key Attack, Yunmei Zhang, Man Ho Au, Guomin Yang, Willy Susilo

Research Collection School Of Computing and Information Systems

Designated verifier signatures (DVS) allow a signer to create a signature whose validity can only be verified by a specific entity chosen by the signer. In addition, the chosen entity, known as the designated verifier, cannot convince any body that the signature is created by the signer. Multi-designated verifiers signatures (MDVS) are a natural extension of DVS in which the signer can choose multiple designated verifiers. DVS and MDVS are useful primitives in electronic voting and contract signing. In this paper, we investigate various aspects of MDVS and make two contributions. Firstly, we revisit the notion of unforgeability under rogue …


An Improved Authentication Scheme For H.264/Svc And Its Performance Evaluation Over Non-Stationary Wireless Mobile Networks, Yifan Zhao, Swee-Won Lo, Robert H. Deng, Xuhua Ding Nov 2012

An Improved Authentication Scheme For H.264/Svc And Its Performance Evaluation Over Non-Stationary Wireless Mobile Networks, Yifan Zhao, Swee-Won Lo, Robert H. Deng, Xuhua Ding

Research Collection School Of Computing and Information Systems

In this paper, a bit stream-based authentication scheme for H.264/Scalable Video Coding (SVC) is proposed. The proposed scheme seamlessly integrates cryptographic algorithms and erasure correction codes (ECCs) to SVC video streams such that the authenticated streams are format compliant with the SVC specifications and preserve the three dimensional scalability (i. e., spatial, quality and temporal) of the original streams. We implement our scheme on a smart phone and study its performance over a realistic bursty packet-lossy wireless mobile network. Our analysis and experimental results show that the scheme achieves very high verification rates with lower communication overhead and much smaller …


Oto: Online Trust Oracle For User-Centric Trust Establishment, Tiffany Hyun-Jin Kim, Payas Gupta, Jun Han, Emmanuel Owusu, Jason Hong, Adrian Perrig, Debin Gao Oct 2012

Oto: Online Trust Oracle For User-Centric Trust Establishment, Tiffany Hyun-Jin Kim, Payas Gupta, Jun Han, Emmanuel Owusu, Jason Hong, Adrian Perrig, Debin Gao

Research Collection School Of Computing and Information Systems

Malware continues to thrive on the Internet. Besides automated mechanisms for detecting malware, we provide users with trust evidence information to enable them to make informed trust decisions. To scope the problem, we study the challenge of assisting users with judging the trustworthiness of software downloaded from the Internet. Through expert elicitation, we deduce indicators for trust evidence, then analyze these indicators with respect to scalability and robustness. We design OTO, a system for communicating these trust evidence indicators to users, and we demonstrate through a user study the effectiveness of OTO, even with respect to IE’s SmartScreen Filter (SSF). …


Front Matter Sep 2012

Front Matter

Journal of Digital Forensics, Security and Law

No abstract provided.


Masthead Sep 2012

Masthead

Journal of Digital Forensics, Security and Law

No abstract provided.


Back Matter Sep 2012

Back Matter

Journal of Digital Forensics, Security and Law

No abstract provided.


Effects Of Architecture On Information Leakage Of A Hardware Advanced Encryption Standard Implementation, Eric A. Koziel Sep 2012

Effects Of Architecture On Information Leakage Of A Hardware Advanced Encryption Standard Implementation, Eric A. Koziel

Theses and Dissertations

Side-channel analysis (SCA) is a threat to many modern cryptosystems. Many countermeasures exist, but are costly to implement and still do not provide complete protection against SCA. A plausible alternative is to design the cryptosystem using architectures that are known to leak little information about the cryptosystem's operations. This research uses several common primitive architectures for the Advanced Encryption Standard (AES) and assesses the susceptibility of the full AES system to side-channel attack for various primitive configurations. A combined encryption/decryption core is also evaluated to determine if variation of high-level architectures affects leakage characteristics. These different configurations are evaluated under …


Utilizing Graphics Processing Units For Network Anomaly Detection, Jonathan D. Hersack Sep 2012

Utilizing Graphics Processing Units For Network Anomaly Detection, Jonathan D. Hersack

Theses and Dissertations

This research explores the benefits of using commonly-available graphics processing units (GPUs) to perform classification of network traffic using supervised machine learning algorithms. Two full factorial experiments are conducted using a NVIDIA GeForce GTX 280 graphics card. The goal of the first experiment is to create a baseline for the relative performance of the CPU and GPU implementations of artificial neural network (ANN) and support vector machine (SVM) detection methods under varying loads. The goal of the second experiment is to determine the optimal ensemble configuration for classifying processed packet payloads using the GPU anomaly detector. The GPU ANN achieves …


Predicting Common Web Application Vulnerabilities From Input Validation And Sanitization Code Patterns, Lwin Khin Shar, Hee Beng Kuan Tan Sep 2012

Predicting Common Web Application Vulnerabilities From Input Validation And Sanitization Code Patterns, Lwin Khin Shar, Hee Beng Kuan Tan

Research Collection School Of Computing and Information Systems

Software defect prediction studies have shown that defect predictors built from static code attributes are useful and effective. On the other hand, to mitigate the threats posed by common web application vulnerabilities, many vulnerability detection approaches have been proposed. However, finding alternative solutions to address these risks remains an important research problem. As web applications generally adopt input validation and sanitization routines to prevent web security risks, in this paper, we propose a set of static code attributes that represent the characteristics of these routines for predicting the two most common web application vulnerabilities—SQL injection and cross site scripting. In …


Guest Editors’ Introduction: Methods Innovations For The Empirical Study Of Technology Adoption And Diffusion, Robert John Kauffman, Angsana A. Techatassanasoontorn Sep 2012

Guest Editors’ Introduction: Methods Innovations For The Empirical Study Of Technology Adoption And Diffusion, Robert John Kauffman, Angsana A. Techatassanasoontorn

Research Collection School Of Computing and Information Systems

The literature on technology adoption and diffusion is ahighly mature area of Information Systems (IS) research,which requires a deft hand in research to support the creationof new contributions of knowledge. In this specialissue, we focus on the application of various methods,including new ones, to shed light on research questions thathave not been understood fully in prior research. In particular,we will showcase research that involves theapplication of event history analysis and spatial econometrics,as well as count data models to study frequencyrelatedphenomena for changes and development in technologyadoption and diffusion. We also include an articlethat employs game theory, as well as another …


No Tradeoff Between Confidentiality And Performance: An Analysis On H.264/Svc Partial Encryption, Zhuo Wei, Xuhua Ding, Robert H. Deng, Yongdong Wu Sep 2012

No Tradeoff Between Confidentiality And Performance: An Analysis On H.264/Svc Partial Encryption, Zhuo Wei, Xuhua Ding, Robert H. Deng, Yongdong Wu

Research Collection School Of Computing and Information Systems

Partial encryption is often used as a tradeoff between security and performance to protect scalable video data. In this paper, we argue that although partial encryption is strong enough for access control, it is not adequate for content confidentiality protection. We conduct experiments to show that partially encrypted H.264/SVC (scalable video coding) streams leak significant content information from the enhancement layers in all three scalability dimensions. Our analysis concludes that such leakage is caused by the underlying coding techniques used in H.264/SVC, and all layers should be encrypted to protect confidential video streams.


Learning Fine-Grained Structured Input For Memory Corruption Detection, Lei Zhao, Debin Gao, Lina Wang Sep 2012

Learning Fine-Grained Structured Input For Memory Corruption Detection, Lei Zhao, Debin Gao, Lina Wang

Research Collection School Of Computing and Information Systems

Inputs to many application and server programs contain rich and consistent structural information. The propagation of such input in program execution could serve as accurate and reliable signatures for detecting memory corruptions. In this paper, we propose a novel approach to detect memory corruptions at the binary level. The basic insight is that different parts of an input are usually processed in different ways, e.g., by different instructions. Identifying individual parts in an input and learning the pattern in which they are processed is an attractive approach to detect memory corruptions. We propose a fine-grained dynamic taint analysis system to …


Reputation As Public Policy For Internet Security, Leigh L. Linden, John S. Quarterman, Qian Tang, Andrew B. Whinston Sep 2012

Reputation As Public Policy For Internet Security, Leigh L. Linden, John S. Quarterman, Qian Tang, Andrew B. Whinston

Research Collection School Of Computing and Information Systems

Insufficient resource allocation causes an Internet information security (infosec) problem that public policy could improve. Lack of transparency lets organizations avoid addressing internal risks, leaving vulnerabilities that are exploited by botnets, threatening information security of other Internet participants. Their protection provides no economic benefit to the firm, so this negative externality causes underinvestment in infosec. Public policy could provide a partial solution by adding incentives for organizations to have well-configured infosec. Specifically, mandatory reporting of security issues plus presenting this information to the public, can impose shame and fame on organizations through publicity and peer influence by comparison with major …


Defeating Sql Injection, Lwin Khin Shar, Hee Beng Kuan Tan Aug 2012

Defeating Sql Injection, Lwin Khin Shar, Hee Beng Kuan Tan

Research Collection School Of Computing and Information Systems

The best strategy for combating SQL injection, which has emerged as the most widespread website security risk, calls for integrating defensive coding practices with both vulnerability detection and runtime attack prevention methods.


Locating And Protecting Facilities Subject To Random Disruptions And Attacks, Hugh Medal Aug 2012

Locating And Protecting Facilities Subject To Random Disruptions And Attacks, Hugh Medal

Graduate Theses and Dissertations

Recent events such as the 2011 Tohoku earthquake and tsunami in Japan have revealed the vulnerability of networks such as supply chains to disruptive events. In particular, it has become apparent that the failure of a few elements of an infrastructure system can cause a system-wide disruption. Thus, it is important to learn more about which elements of infrastructure systems are most critical and how to protect an infrastructure system from the effects of a disruption. This dissertation seeks to enhance the understanding of how to design and protect networked infrastructure systems from disruptions by developing new mathematical models and …


A Secure And Efficient Discovery Service System In Epcglobal Network, Jie Shi, Yingjiu Li, Robert H. Deng Aug 2012

A Secure And Efficient Discovery Service System In Epcglobal Network, Jie Shi, Yingjiu Li, Robert H. Deng

Research Collection School Of Computing and Information Systems

In recent years, the Internet of Things (IOT) has drawn considerable attention from the industrial and research communities. Due to the vast amount of data generated through IOT devices and users, there is an urgent need for an effective search engine to help us make sense of this massive amount of data. With this motivation, we begin our initial works on developing a secure and efficient search engine (SecDS) based on EPC Discovery Services (EPCDS) for EPCglobal network, an integral part of IOT. SecDS is designed to provide a bridge between different partners of supply chains to share information while …