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Properties of Static and Mobile Unreliable Networks and their effects on Combating Malicious Objects
Title
Properties of Static and Mobile Unreliable Networks and their effects on Combating Malicious Objects.
Creator
Ruocco, John, Wu, Jie, Florida Atlantic University, College of Engineering and Computer Science, Department of Computer and Electrical Engineering and Computer Science
Abstract/Description
Wireless sensor networks or WSNs continually become more common in todays world. They are able to give us a constant view into the world as they gather information and make this information more readily available. The infonnation these networks gather and contain is valuable and protecting it is of great importance. Today more and more devices are becoming wireless and mobile. This is allowing for very diverse networks to be created and they are constantly changing. Nodes in these networks...
Show moreWireless sensor networks or WSNs continually become more common in todays world. They are able to give us a constant view into the world as they gather information and make this information more readily available. The infonnation these networks gather and contain is valuable and protecting it is of great importance. Today more and more devices are becoming wireless and mobile. This is allowing for very diverse networks to be created and they are constantly changing. Nodes in these networks are either moving to different positions or going offi ine which constantly changes the overall layout of the network. With this increasing connectivity of today's devices this opens the door for possibility for these types of networks to become targets by malicious objects designed to bring harm to the network. Many unre liable networks already face many problems such as having to optimize battety life and being deployed in areas where they can be damaged. A malicious object in this type of network has the power to destroy data and deplete the networks limited resources such as bandwidth and power. Removal of these malicious objects can also have a negative effect on these limited resources. We must find a way to remove these malicious objects in a way that minimizes loss to the network. In this paper we will look at the information survival threshold of these types of networks. Certain controllable parameters exist that directly impact the survival rate of all data in the network. We will combine this with the addition our own self-replicating objects to the network designed to neutralize their malicious counterparts. We will examine these information survival threshold parameters along with specific parameters available to the network. We shall see how these parameters affect overall survival of data in the network and their impact on our own good data.
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Date Issued
2008
PURL
http://purl.flvc.org/fau/fd/FA00012545
Subject Headings
Wireless communication systems--Security measures, Computer network protocols, Computer security, Computer networks--Security measures
Format
Document (PDF)
Range assignment problem and security in wireless networks
Title
Range assignment problem and security in wireless networks.
Creator
Pervaiz, Mohammad O., Florida Atlantic University, Cardei, Mihaela, College of Engineering and Computer Science, Department of Computer and Electrical Engineering and Computer Science
Abstract/Description
This thesis considers two important issues in wireless networks. In first part, we address Energy-Efficient Range Assignment in Heterogeneous Wireless Sensor Networks (HRA) and in second part, we present a survey on security attacks in ad hoc wireless networks. We address the HRA problem by selecting the transmission range for each energy-constraint sensor node such that a multi-hop communication path exists between each sensor' node and a resource-rich supernode while maximum power required...
Show moreThis thesis considers two important issues in wireless networks. In first part, we address Energy-Efficient Range Assignment in Heterogeneous Wireless Sensor Networks (HRA) and in second part, we present a survey on security attacks in ad hoc wireless networks. We address the HRA problem by selecting the transmission range for each energy-constraint sensor node such that a multi-hop communication path exists between each sensor' node and a resource-rich supernode while maximum power required is minimized. This is the first work to address this problem. We propose several solutions: an Integer Programming approach, a distributed greedy protocol, and a minimum spanning tree protocol based on clustering. In second part of this thesis, a survey is carried out on security attacks on routing protocols in ad hoc wireless network. We examine and classify major routing attacks and present a comprehensive survey on the state-of-the-art mechanisms and solutions designed to defeat such attacks.
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Date Issued
2006
PURL
http://purl.flvc.org/fcla/dt/13341
Subject Headings
Wireless communication systems--Security measures, Sensor networks, Wireless LANs--Security measures, Power resources--Efficiency
Format
Document (PDF)
Mitigating worm propagation on virtual LANs
Title
Mitigating worm propagation on virtual LANs.
Creator
Sun, Xiaoguang., Florida Atlantic University, Rajput, Saeed, Hsu, Sam, College of Engineering and Computer Science, Department of Computer and Electrical Engineering and Computer Science
Abstract/Description
Recent worms have used sophisticated propagation techniques to propagate faster than the patch distribution and have utilized previously unknown vulnerabilities. To mitigate repetition of such epidemics in future, active defense mechanisms are needed that not only identify malicious activity, but can also defend against widespread outbreak. We provide a framework capable of reacting quickly to quarantine infections. The fundamental components of our framework are detector and VLAN switch. We...
Show moreRecent worms have used sophisticated propagation techniques to propagate faster than the patch distribution and have utilized previously unknown vulnerabilities. To mitigate repetition of such epidemics in future, active defense mechanisms are needed that not only identify malicious activity, but can also defend against widespread outbreak. We provide a framework capable of reacting quickly to quarantine infections. The fundamental components of our framework are detector and VLAN switch. We have provided a proof of concept implementation, where we use the Blaster worm as an example, and demonstrate that detection of worms is possible, and individual infected hosts can be isolated quickly. Furthermore, using Monte Carlo simulations, we show that such containment of future epidemics is possible. In addition, we also compute the overhead of detection and mitigation approaches and have shown that our approach has lower overhead compared to the others.
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Date Issued
2006
PURL
http://purl.flvc.org/fcla/dt/13369
Subject Headings
Wireless LANs--Security measures, Wireless communication systems--Security measures, Computer viruses--Prevention, Computer security
Format
Document (PDF)
Physical Layer Security of Wireless Transmissions Over Fading Channels
Title
Physical Layer Security of Wireless Transmissions Over Fading Channels.
Creator
Blanc, Sadrac, Aalo, Valentine A., Florida Atlantic University, College of Engineering and Computer Science, Department of Computer and Electrical Engineering and Computer Science
Abstract/Description
The open nature of the wireless medium makes the wireless communication susceptible to eavesdropping attacks. In addition, fading and shadowing significantly degrade the performance of the communication system in the wireless networks. A versatile approach to circumvent the issues of eavesdropping attacks while exploiting the physical properties of the wireless channel is the so-called physical layer-security. In this work, we consider a model in which two legitimate users communicate in the...
Show moreThe open nature of the wireless medium makes the wireless communication susceptible to eavesdropping attacks. In addition, fading and shadowing significantly degrade the performance of the communication system in the wireless networks. A versatile approach to circumvent the issues of eavesdropping attacks while exploiting the physical properties of the wireless channel is the so-called physical layer-security. In this work, we consider a model in which two legitimate users communicate in the presence of an eavesdropper. We investigate the performance of the wireless network at the physical layer that is subject to a variety of fading environments that may be modeled by the Rayleigh, Nakagami-m, and Generalized-K distributions, to mention a few. We use the secrecy outage probability (SOP) as the standard performance metrics to study the performance of the wireless networks. We propose two different approaches to compute the secrecy outage probability, and derive explicit expressions for the secrecy outage probability that allow us to characterize the performance of the wireless networks. Specifically, we use a direct integration approach as well as a Taylor series base approach to evaluate the secrecy outage probability. Finally, we use computer simulations, based on MATLAB, to confirm the analytical results.
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Date Issued
2016
PURL
http://purl.flvc.org/fau/fd/FA00004729, http://purl.flvc.org/fau/fd/FA00004729
Subject Headings
Data encryption (Computer science), Digital communications -- Reliability -- Mathematics, Internetworking (Telecommunication), Radio wave propagation, Wireless communication systems -- Security measures
Format
Document (PDF)
Implementation of the IEEE 1609.2 WAVE Security Services Standard
Title
Implementation of the IEEE 1609.2 WAVE Security Services Standard.
Creator
Mandy, Chad Christopher Jr., Mahgoub, Imad, Florida Atlantic University, College of Engineering and Computer Science, Department of Computer and Electrical Engineering and Computer Science
Abstract/Description
This work presents the implementation of the the IEEE 1609.2 WAVE Security Services Standard. This implementation provides the ability to generate a message signature, along with the capability to verify that signature for wave short messages transmitted over an unsecured medium. Only the original sender of the message can sign it, allowing for the authentication of a message to be checked. As hashing is used during the generation and verification of signatures, message integrity can be...
Show moreThis work presents the implementation of the the IEEE 1609.2 WAVE Security Services Standard. This implementation provides the ability to generate a message signature, along with the capability to verify that signature for wave short messages transmitted over an unsecured medium. Only the original sender of the message can sign it, allowing for the authentication of a message to be checked. As hashing is used during the generation and verification of signatures, message integrity can be verified because a failed signature verification is a result of a compromised message. Also provided is the ability to encrypt and decrypt messages using AES-CCM to ensure that sensitive information remains safe and secure from unwanted recipients. Additionally this implementation provides a way for the 1609.2 specific data types to be encoded and decoded for ease of message transmittance. This implementation was built to support the Smart Drive initiative’s VANET testbed, supported by the National Science Foundation and is intended to run on the Vehicular Multi-technology Communication Device (VMCD) that is being developed. The VMCD runs on the embedded Linux operating system and this implementation will reside inside of the Linux kernel.
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Date Issued
2016
PURL
http://purl.flvc.org/fau/fd/FA00004693, http://purl.flvc.org/fau/fd/FA00004693
Subject Headings
Application software -- Security measures, Expert systems (Computer science), Vehicular ad hoc networks (Computer networks), Wireless LANs, Wireless communication systems -- Security measures, Wireless sensor networks
Format
Document (PDF)
Energy cost evaluation of a secure 802.11 wireless transmission using NS-2
Title
Energy cost evaluation of a secure 802.11 wireless transmission using NS-2.
Creator
Martins, Joao Marcelo Galindo., Florida Atlantic University, Mahgoub, Imad, College of Engineering and Computer Science, Department of Computer and Electrical Engineering and Computer Science
Abstract/Description
Mobile devices capable of transmitting and receiving data over an 802.11 network have become very common gadgets in our society. Most small mobile devices available in the market today come with integrated 802.11 radio. The extraordinary growth of this technology has also introduced several worries regarding the vulnerabilities that exist by transmitting data over the air. In order to minimize such problems, encryption algorithms were added as an option to be used with 802.11. Unfortunately,...
Show moreMobile devices capable of transmitting and receiving data over an 802.11 network have become very common gadgets in our society. Most small mobile devices available in the market today come with integrated 802.11 radio. The extraordinary growth of this technology has also introduced several worries regarding the vulnerabilities that exist by transmitting data over the air. In order to minimize such problems, encryption algorithms were added as an option to be used with 802.11. Unfortunately, the usage of encryption algorithms also causes a faster depletion of the energy resources available to a mobile device. Depending on the encryption algorithm implementation, a greater number of packets may be required in order to transmit the same amount of data that would be transmitted with less packets over a non-encrypted channel. The objective of this research is to analyze and evaluate the affects that the encryption algorithms used by wireless security protocols can have during data transmission over a wireless medium.
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Date Issued
2005
PURL
http://purl.flvc.org/fcla/dt/13292
Subject Headings
Wireless communication systems--Security measurer--Evaluation, Coding theory--Evaluation, Computer architecture--Standards--Evaluation, IEEE 80211 (Standard), Mobile communication systems--Power supply--Evaluation
Format
Document (PDF)