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Bluetooth Worms: Models, Dynamics, and Defense Imp
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Hits: 24 |
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Date added: 06/02/2007 |
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Bluetooth Worms: Models, Dynamics, and Defense Implications
Recent occurrences of mobile worms like Cabir, Mabirand CommWarrior have created growing concerns over the security of data stored on mobile devices such as cellphones and PDAs. These worms have in common that they all use Bluetooth communication as their infection channel.In order to prepare effective defense strategies against such worms, we study the nature, characteristics, and spreading dynamics of Bluetooth worms in the safe environment of simulation. |
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Unique Vulnerabilities and Attacks on Cellular Dat
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Hits: 24 |
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Date added: 06/02/2007 |
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Unique Vulnerabilities and Attacks on Cellular Data Packet Services - Thesis
This thesis presents several vulnerabilities on the cellular data packet services and its applications, and present two particular denial of service attacks. First, we demonstrate an attack, which surreptitiously drains mobile devices’ battery power up to 22 times faster and therefore could render these devices useless before the end of business hours. This attack targets a unique resource bottleneck in mobile devices (the battery power) by exploiting an insecure cellular data service (MMS) and the insecure interaction between cellular data networks and the Internet (PDP context retention and the paging channel). Second, we propose a series of attacks on 3G cellular packet services that exploit the unverified channel condition reports from mobile devices to their base stations, and user-initiated handoffs. |
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WAP Beginners Guide
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Hits: 20 |
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Date added: 07/22/2006 |
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Wireless Internet access is exploding worldwide! Here's the perfect introduction for developers to this revolutionary technology. This hands-on beginner's guide explains how to deliver content to WAP-enabled devices, convert existing Web pages to WAP, and integrate WAP into existing sites. You'll also learn how to enable secure e-commerce transactions. |
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802.11 Wireless Networks: The Definitive Guide - 2
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Hits: 19 |
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Date added: 09/15/2006 |
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As we all know by now, wireless networks offer many advantages over fixed (or wired) networks. Foremost on that list is mobility, since going wireless frees you from the tether of an Ethernet cable at a desk. But that’s just the tip of the cable-free iceberg. Wireless networks are also more flexible, faster and easier for you to use, and more affordable to deploy and maintain. The de facto standard for wireless networking is the 802.11 protocol, which includes Wi-Fi (the wireless standard known as 802.11b) and its faster cousin, 802.11g. With easy-to-install 802.11 network hardware available everywhere you turn, the choice seems simple, and many people dive into wireless computing with less thought and planning than they’d give to a wired network. But it’s wise to be familiar with both the capabilities and risks associated with the 802.11 protocols. And 802.11 Wireless Networks: The Definitive Guide, 2nd Edition is the perfect place to start. This updated edition covers everything you’ll ever need to know about wireless technology. Designed with the system administrator or serious home user in mind, it’s a no-nonsense guide for setting up 802.11 on Windows and Linux. Among the wide range of topics covered are discussions on:
* deployment considerations
* network monitoring and performance tuning
* wireless security issues
* how to use and select access points
* network monitoring essentials
* wireless card configuration
* security issues unique to wireless networks
With wireless technology, the advantages to its users are indeed plentiful. Companies no longer have to deal with the hassle and expense of wiring buildings, and households with several computers can avoid fights over who’s online. And now, with 802.11 Wireless Networks: The Definitive Guide, 2nd Edition, you can integrate wireless technology into your current infrastructure with the utmost confidence. |
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Radio Frequency Interference and its Use as a Weap
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Hits: 19 |
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Date added: 12/27/2006 |
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Radio frequency is a type of electric current on a wireless network, which emits an electromagnetic field when alternating current is applied to an antenna. Similar to waves that result from a rock thrown into water, radio waves are altered when obstructions appear, and may reflect or scatter for example, depending on their interactions with each other. (Shimonski, 2002) Wave fronts are generated when the waves become reflected. So from a receiver’s perspective, the wave fronts may be in or out of phase with the main signal as they reach the receiver at different times. If the peak of one wave is added to the peak of another, they are in phase and the wave will be amplified. If the peak of one wave comes in contact with the valley of another, they are out of phase, and the wave is eliminated.
Radio Frequency Interference occurs “when a signal radiated by a transmitter is picked up by an electronic device in such a manner that it prevents the clear reception of another and desired signal or causes malfunction of some other electronic device (not simply a radio or television receiver).” (Brock, Fall 1998) RFI can be induced intentionally, or unintentionally. |
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