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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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Passive Data Link Layer 802.11 Wireless Device Dri
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Hits: 10 |
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Date added: 12/24/2006 |
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Passive Data Link Layer 802.11 Wireless Device Driver Fingerprinting
In particular, we develop a unique fingerprinting tech-nique that accurately and efficiently identifies the wire-less driver without modification to or cooperation froma wireless device. |
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The Securities and Insecurities of Wireless Network
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Hits: 10 |
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Date added: 12/23/2006 |
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The Securities and Insecurities of Wireless Networks Today
Everyone is looking for a way to make things easier and more convenient, especially when it comes to technology. Everything that was once new and revolutionary became old and drab because it was stuck in one place due to wires. When laptop computers became smaller and more portable, the need for wireless connectivity became blatantly obvious. Having a wired connection does not allow us to keep up with the fast-paced society that we live in today. Around the early 1990’s, teams of engineers greatly expanded our options for portable technology. “Wireless technologies are without any doubt shaping the beginning of the new millennium. The principal of computing any time, anywhere, is becoming reality.”
Around 1991, “Wi-Fi” or “Wireless Fidelity” was invented by Vic Hayes of Lucent and Agere Systems in the Netherlands. Its initial design was meant for cashier systems and the first products on the market were called “WaveLAN.” This first attempt at wireless only supported speeds of 1 Mb/s to 2 Mb/s. In the past 15 years, things have definitely come a long way. The speeds have increased dramatically from their initial design and have given the world of wireless technology infinite possibilities. |
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Wireless Security Hodgepodge
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Hits: 6 |
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Date added: 12/22/2006 |
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During the infancy of the wireless computing age, key defenses and deterrents to wireless attacks were the cost and complexity of methods required to partake in such activities. The current age of easily accessible, inexpensive tools have tilted the balance of price, complexity, and deterrence in favor of the novice wireless attacker. During year 2005, over a billion wireless users are projected (Lauter, 2004). As of this writing, the wireless security discussion is in escalation. This paper is a brief participant of the discussion, and concludes multiple security mechanisms (a hodgepodge, instead of a single solution) provide maximum wireless security. |
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Wireless Data Network Security for Hospitals
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Hits: 40 |
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Date added: 12/20/2006 |
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In 1996, the Health Insurance Portability and Accountability Act (HIPAA) was enacted to protect health information by establishing transaction standards for the exchange of health information, security standards, and privacy standards for the use and disclosure of individually identifiable health information. Entities directly impacted by this act are health plans, health clearinghouses and healthcare providers (“TLC HIPAA Overview”, n.d.).
Although there are other rules incorporated in HIPAA, the Security Rule has the most direct impact on hospital technology systems including network infrastructure. This rule addresses security measures such as user authentication, access controls, audit trails, controls of external communication links and access, physical security, systems back up, and disaster recovery. With increasingly more information being stored and transmitted electronically, the Security Rule works to identify and regulate these activities (Gue, n.d.). |
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