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International Conference on Network and System Security

作者： Hunt, Ray Slay, Jill Department of Computer Science and Software Engineering University of Canterbury Christchurch New Zealand Department of Research Division IT Engineering and the Environment University of South Australia Australia

ISBN: (纸本)9780769541594

Network security design has seen significant advances in recent years. This has been demonstrated by a growing number of new encryption algorithms, more intelligent firewall and intrusion detection techniques, new developments in multifactor authentication, advances in malware protection and many more. During a similar period of time the industry has seen the need for network infrastructure which provides a greater degree of trust which has resulted in the development of forensic analysis tools which meet the requirements of law enforcement agencies. Such tools must provide for commercial intelligence and national security. This paper proposes that application of the common ground between security and forensics has great potential to provide for improvements in the effort to achieve real-time adaptive security. This implies an architecture which can detect security breaches and in real-time record and analyse traffic logs in a forensically sound manner, provide corrective feedback to security devices and attempt to traceback to the source of the attack. In addressing computer security and forensic analysis from a real-time perspective, this paper recognises that some of these processes already exist, but proposes methods whereby the ongoing damage and potential risk to critical infrastructure can be reduced. This requires the implementation of a highly integrated approach to security and forensics such that they can inter-work in real-time in order to address the significant security issues which currently face the industry. © 2010 IEEE.

关键词： National security

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Minimizing the operational cost of chemical sensor networks

Minimizing the operational cost of chemical sensor networks

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2010 6th International Conference on Intelligent Sensors, Sensor Networks and Information Processing, ISSNIP 2010

作者： Karunasekera, Shanika Skvortsov, Alex Gunatilaka, Ajith Department of Computer Science and Software Engineering University of Melbourne VIC 3010 Australia HPP Division Defence Science and Technology Organisation 506 Lorimer Street Fishermans Bend VIC 3207 Australia

ISBN: (纸本)9781424471768

Minimizing the sensing activity during the pre-attack phase while meeting the performance requirements is critical for reducing the operational costs of chemical sensor networks. In this paper, we present a formal problem formulation for this optimization problem, and propose a decentralized, dynamic sensor activation protocol for meeting this *** analyze the behavior of the activation protocol using an epidemiology-based approach and derive analytical expressions for the system performance metrics, namely, operational cost, detection delay, probability of false alarms and probability of detection. We analyze the interdependency between the performance metrics. © 2010 IEEE.

关键词： Chemical attack

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The effect of correlation of chemical tracers on chemical sensor network performance

The effect of correlation of chemical tracers on chemical se...

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2010 6th International Conference on Intelligent Sensors, Sensor Networks and Information Processing, ISSNIP 2010

作者： Mendis, Champake Gunatilaka, Ajith Skvortsov, Alex Karunasekera, Shanika Department of Computer Science and Software Engineering University of Melbourne VIC 3010 Australia HPP Division Defence Science and Technology Organisation 506 Lorimer Street Fishermans Bend VIC 3207 Australia

ISBN: (纸本)9781424471768

Chemical sensor networks are used to detect the presence of hazardous chemicals released intentionally or accidentally into the atmosphere. Although many performance attributes of chemical sensor networks, such as energy utilization, detection delay, and false alarm characteristics, have been studied in the literature, the effect of spatial correlation of sensor readings on the network performance has not hitherto been studied. Because chemical tracers dispersing in the turbulent atmosphere are inherently spatially correlated, understanding how such correlations impact on the network performance is vital for chemical sensor network optimization. In this paper we investigate the impact of spatial correlation on the performance of chemical sensor networks. © 2010 IEEE.

关键词： Wireless sensor networks

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An efficient and secure routing protocol for wireless sensor networks using multicasting

An efficient and secure routing protocol for wireless sensor...

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IEEE International Conference on Green Computing and Communications

作者： Dhurandher, Sanjay K. Obaidat, Mohammad S. Jain, Gaurav Ganesh, Isha Mani Shashidhar, Vinay Division of Information Technology Netaji Subhas Institute of Technology University of Delhi New Delhi India Department of Computer Science and Software Engineering Monmouth University NJ United States Division of Computer Engineering Netaji Subhas Institute of Technology University of Delhi New Delhi India

ISBN: (纸本)9780769543314

Recent technological advancements in the field of nanotechnology have increased the computation power of the wireless nodes while adhering to the energy constraints. This has made the use of the Wireless Sensor Networks (WSNs), more widespread;used in applications such as area monitoring, industrial monitoring, vehicle detection or military monitoring. Sensor nodes have made it possible to collect data even in hostile environments, but because of the severe security and energy constraints faced by sensor networks, their deployment on a large scale is still a tricky job. A secure energy efficient routing algorithm is thus the need of the hour. SPIN, Sensor Protocol for Information via Negotiation, is one of the widely used energy efficient routing protocol in WSNs that completely ignores the security aspect. This paper involves proposing an alternate routing protocol, MS-SPIN, which incorporates the best features of SPIN while also addressing the security issue. The implementation of MS-SPIN in NS2 has shown that, for a larger number of nodes, its energy performance characteristics are comparable to those of SPIN while providing security features. © 2010 IEEE.

关键词： Sensor nodes

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Putting the software radio on a low-calorie diet

Putting the software radio on a low-calorie diet

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9th ACM SIGCOMM Workshop on Hot Topics in Networks, HotNets-9

作者： Dutta, Prabal Kuo, Ye-Sheng Ledeczi, Akos Schmid, Thomas Volgyesi, Peter Computer Science and Engineering Division University of Michigan Ann Arbor MI 48109 United States Institute for Software Integrated Systems Vanderbilt University Nashville TN 37235 United States

ISBN: (纸本)9781450304092

Modern software-defined radios are large, expensive, and power-hungry devices and this, we argue, hampers their more widespread deployment and use, particularly in low-power, size-constrained application settings like mobile phones and sensor networks. To rectify this problem, we propose to put the software-defined radio on a diet by redesigning it around just two core chips - an integrated RF transceiver and a Flash-based, mixed-signal FPGA. Modern transceivers integrate almost all RF front-end functions while emerging FPGAs integrate nearly all of required signal conditioning and processing functions. And, unlike conventional FPGAs, Flash-based FPGAs offer sleep mode power draws measured in the microamps and startup times measured in the microseconds, both of which are critical for low-power operation. If our platform architecture vision is realized, it will be possible to hold a software-defined radio in the palm of one's hand, build it for $100, and power it for days using the energy in a typical mobile phone battery. This will make software radios deployable in high densities and broadly accessible for research and education. © 2010 ACM.

关键词： software radio

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A decentralized dynamic sensor activation protocol for chemical sensor networks

A decentralized dynamic sensor activation protocol for chemi...

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2010 9th IEEE International Symposium on Network Computing and Applications, NCA 2010

作者： Karunasekera, Shanika Mendis, Champake Skvortsov, Alex Gunatilaka, Ajith Department of Computer Science and Software Engineering University of Melbourne Melbourne VIC 3010 Australia Human Protection and Performance Division Defence Science and Technology Organisation Fishermans Bend 506 Lorimer Street VIC 3207 Australia

ISBN: (纸本)9780769541181

Due to the significant amount of energy consumed by chemical sensors for sensing, reducing sensing activity is critical for improving the lifespan of chemical sensor networks. In this paper, we consider a simple decentralized dynamic sensor activation protocol that aims to maintain a majority of sensors in the inactive (passive) state in the absence of a chemical attack, and rapidly activate the sensors when an attack is detected. This paper proposes two analytical models to study the behavior of the sensor network under the proposed protocol. Our first analytical model employs the known analogy between the information spread in a sensor network and the propagation of epidemics across a population. The second model describes the protocol by using a framework of graph theory. © 2010 IEEE.

关键词： Sensor networks

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A distributed eResearch tool for evaluating source backtracking algorithms

A distributed eResearch tool for evaluating source backtrack...

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2010 6th IEEE International Conference on e-science, escience 2010

作者： Karunasekera, Shanika Beaton, John Dimech, Adrian Skvortsov, Alex Gunatilaka, Ajith Department of Computer Science and Software Engineering University of Melbourne Melbourne VIC 3010 Australia Human Protection and Performance Division Defence Science and Technology Organisation 506 Lorimer Street Fishermans Bend VIC 3207 Australia

ISBN: (纸本)9780769542904

This paper presents an eResearch tool for evaluating and comparing Chemical, Biological, Radiological and Nuclear (CBRN) source-backtracking algorithms. The tool enables users to define a CBRN threat scenario to be simulated, which includes the geographical area of concern specified through a map, the simulated threat sources and their placement, and the configuration of sensors. Users can define multiple searchers who act as clients that interact with a central server and search for the simulated radiological source or sources. Based on the simulated measurements received from the searchers, and a chosen source backtracking algorithm, the central server updates the source estimates and issues control vectors to guide each searcher.

关键词： Bioinformatics

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Alerts analysis and visualization in network-based intrusion detection systems

Alerts analysis and visualization in network-based intrusion...

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IEEE International Conference on Social Computing

作者： Yang, Li Gasior, Wade Katipally, Rajeshwar Cui, Xiaohui Department of Computer Science and Engineering Univeristy of Tennessee at Chattanooga Chattanooga TN 37403 United States Applied Software Engineering Research Group Computational Sciences and Engineering Division Oak Ridge National Laboratory Oak Ridge TN 37831 United States

ISBN: (纸本)9780769542119

The alerts produced by network-based intrusion detection systems, e.g. Snort, can be difficult for network administrators to efficiently review and respond to due to the enormous number of alerts generated in a short time frame. This work describes how the visualization of raw IDS alert data assists network administrators in understanding the current state of a network and quickens the process of reviewing and responding to intrusion attempts. The project presented in this work consists of three primary components. The first component provides a visual mapping of the network topology that allows the end-user to easily browse clustered alerts. The second component is based on the flocking behavior of birds such that birds tend to follow other birds with similar behaviors. This component allows the enduser to see the clustering process and provides an efficient means for reviewing alert data. The third component discovers and visualizes patterns of multistage attacks by profiling the attacker's behaviors. © 2010 IEEE.

关键词： Birds

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Feedback iterative learning control for time-delay systems based on 2D analysis approach

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控制理论与应用（英文版） 2010年第4期8卷 457-463页

作者： Deyuan MENG Yingmin JIA Junping DU Shiying YUAN The Seventh Research Division Beihang University Beijing 100191 China Beijing Key Laboratory of Intelligent Telecommunications Software and Multimedia School of Computer Science and Technology Beijing University of Posts and Telecommunications Beijing 100876 China School of Electrical Engineering and Automation Henan Polytechnic University Jiaozuo Henan 454000 China

This paper deals with the iterative learning control （ILC） design for multiple-input multiple-output （MIMO）,time-delay systems （TDS）.Two feedback ILC schemes are considered using the so-called two-dimensional （2D） analysis *** shows that continuous-discrete 2D Roesser systems can be developed to describe the entire learning dynamics of both ILC schemes,based on which necessary and sufficient conditions for their stability can be provided.A numerical example is included to validate the theoretical analysis.

关键词： Iterative learning control Time-delay systems 2D analysis approach

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Network layer based secure routing protocol for wireless ad hoc sensor networks in urban environments

Network layer based secure routing protocol for wireless ad ...

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作者： Dhurandher, Sanjay K. Obaidat, Mohammad S. Gupta, Deepank Gupta, Nidhi Asthana, Anupriya Division of Information Technology Netaji Subhas Institute of Technology University of Delhi New Delhi India Department of Computer Science and Software Engineering Monmouth University NJ United States

ISBN: (纸本)9789898425249

Security is essential in wireless sensor networks as they are being used in urban environments, life saving disaster management and rescue operations. Any serious attack at the routing layer can cause serious damages. Although a lot of security measures have been proposed for application and transport layer, we have found that there is not enough research geared towards securing the network at the routing layer. In this paper, we propose a novel solution for securing against external as well as internal attacks. The protocol maintains a working network by using redundant multiple paths despite attacks at one route. It also identifies and removes the malicious nodes from the system. Since the system is totally distributed and does not require a central server as required in some of the other protocols, there is no single point of failure. We also keep in mind the limited computing resources and network bandwidth of the wireless sensor nodes. Finally the paper quantifies the protocol's effectiveness against some of the existing secure routing protocols namely QDV and SNEP using simulation studies.

关键词： Routing protocols

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