WEPCrack URLs: WEPCrack. Maximum Wireless Security by Seth Fogie. As it was implemented in wireless 802.11 encryption. Wireless How To; Wireless. Perhaps the most predominant flaw in WEP is that the key is not hashed. How To Crack WEP - Part 1. Free Wireless Security Tools. WEPCrack is an open-source tool used to break 802.11 WEP keys. You can also download. Computes the encryption key when enough.
There is a new version of this article., we showed you how to secure your wireless with industrial strength RADIUS authentication via WPA-Enterprise. It turns out that there's a little back-story there. So, in traditional Tarentino fashion, now that we've already seen the ending, let's back up to the beginning: cracking WPA-PSK.
Wi-Fi Protected Access () was created to solve the gaping security flaws that plagued WEP. Perhaps the most predominant flaw in WEP is that the key is not hashed, but concatenated to the IV, allowing completely passive compromise of the network. With WEP, you can literally sit in your car listening for packets on a network. Once you have captured enough of them, you can extract the key and connect to the network. WPA solves this problem by rotating the key on a per-packet basis, which renders the above method useless. However, nothing is perfectly secure, and WPA-PSK is particularly vulnerable during client association, during which the hashed network key is exchanged and validated in a 'four-way handshake'.
The Wi-Fi Alliance, creators of WPA, were aware of this vulnerability and took precautions accordingly. Instead of concatenating the key in the IV (the weakness of WEP), WPA hashes they key using the wireless access point's SSID as a salt. The benefits of this are two-fold.
First, this prevents the statistical key grabbing techniques that broke WEP by transmitting the key as a hash (cyphertext). It also makes hash precomputation via a technique similar to more difficult because the SSID is used as a salt for the hash. WPA-PSK even imposes a eight character minimum on PSK passphrases, making bruteforce attacks less feasible. So, like virtually all security modalities, the weakness comes down to the passphrase. WPA-PSK is particularly susceptible to dictionary attacks against weak passphrases. In this How To, we'll show you how to crack weak WPA-PSK implementations and give you some tips for setting up a secure WPA-PSK AP for your SOHO.
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Wepcrack-perl 0.1.0 Download||||||||||| » -> -> » Wepcrack-perl 0.1.0 This Directory TOP Search Wepcrack-perl 0.1.0 File Size: 6KB Developer: Description: WEPCrack is an open source tool for breaking 802.11 WEP secret keys. This tool is is an implementation of the attack described by Fluhrer, Mantin, and Shamir in the paper 'Weaknesses in the Key Scheduling Algorithm of RC4' While Airsnort has captured the media attention, WEPCrack was the first publically available code that demonstrated the above attack. Download: Sponsor Links Sponsor Links Copyright ©2009 all rights reserved.
NAME aircrack-ng - a 802.11 WEP / WPA-PSK key cracker SYNOPSIS aircrack-ng [options] DESCRIPTION aircrack-ng is an 802.11 WEP and WPA/WPA2-PSK key cracking program. It can recover the WEP key once enough encrypted packets have been captured with airodump-ng. This part of the aircrack-ng suite determines the WEP key using two fundamental methods. The first method is via the PTW approach (Pyshkin, Tews, Weinmann). The main advantage of the PTW approach is that very few data packets are required to crack the WEP key. The second method is the FMS/KoreK method. The FMS/KoreK method incorporates various statistical attacks to discover the WEP key and uses these in combination with brute forcing.
Additionally, the program offers a dictionary method for determining the WEP key. For cracking WPA/WPA2 pre-shared keys, a wordlist (file or stdin) or an airolib-ng has to be used. OPTIONS Common options: -a Force the attack mode, 1 or wep for WEP and 2 or wpa for WPA-PSK. -e Select the target network based on the ESSID. This option is also required for WPA cracking if the SSID is cloacked.
For SSID containing special characters, see -b or --bssid Select the target network based on the access point MAC address. -p Set this option to the number of CPUs to use (only available on SMP systems). By default, it uses all available CPUs -q If set, no status information is displayed. -C or --combine Merges all those APs MAC (separated by a comma) into a virtual one. -l Write the key into a file.
-E Create Elcomsoft Wireless Security Auditor (EWSA) Project file v3.02. Static WEP cracking options: -c Search alpha-numeric characters only. -t Search binary coded decimal characters only. -h Search the numeric key for Fritz!BOX -d or --debug Specify mask of the key.