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Sunday, July 12, 2009

Aircrack-ng & the best wireles card

Aircrack-ng is an 802.11 WEP and WPA-PSK keys cracking program that can recover keys once enough data packets have been captured. It implements the standard FMS attack along with some optimizations like KoreK attacks, as well as the all-new PTW attack, thus making the attack much faster compared to other WEP cracking tools. In fact, Aircrack-ng is a set of tools for auditing wireless networks.

Determine the chipset

There are two manufacturers involved with wireless cards. The first is the brand of the card itself. Examples of card manufacturers are Netgear, Ubiquiti , Linksys and D-Link. There are many, many manufacturers beyond the examples give here.
The second manufacturer is who makes the wireless chipset within the card. This is the most important company to know. Unfortunately, it is sometimes the hardest to determine. This is because card manufacturers generally don't want to reveal what they use inside their card. However, for our purposes, it is critical to know the wireless chipset manufacturer. Knowing the wireless chipset manufacturer allows you to determine which operating systems are supported, software drivers you need and what limitations are associated with them. The compability
section describes the operating systems supported and limitations by chipset.
You first need to determine what wireless chipset your card uses. This can be done by one or more of these techniques:
  • Search the internet for ” chipset” or ” linux”. Quite often you can find references to what chipset your card uses and/or other people's experiences.
  • Search the Forum
  • You may also have a look at windows driver file names, it's often the name of the chipset or the driver to use.
  • Check later in this page for cards known to work with aircrack-ng
  • Check the card manufacturers page. Sometimes they say what chipset they use.
  • Have a look at lspci -vv output for descriptions, PCI id and kernel modules used.

Here are some other resources to assist you in determine what chipset you have:

Read more at source...

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