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Ensure all of the above assumptions are true, otherwise the advice that follows will not work. If you use a different version then some of the command options may have to be changed. You are using v0.9.1 or above of aircrack-ng. You can confirm that you can communicate with the specific AP by following these instructions. So you have to be physically close enough for your transmitted packets to reach and be received by both the AP and the wireless client. The wireless card strength is typically less then the AP strength. Remember that just because you can receive packets from them does not mean you may will be able to transmit packets to them. You are physically close enough to send and receive access point and wireless client packets. Use the injection test to confirm your card can inject. DOWNLOAD BACKTRACK 5 CRACK WIFI DRIVERS1 of 10 07/08/ :02 PMĢ Assumptions First, this solution assumes: You are using drivers patched for injection. ![]() Additional troubleshooting ideas and tips are especially welcome. Please send me any constructive feedback, positive or negative. I would like to acknowledge and thank the Aircrack-ng team [ for producing such a great robust tool. If you do not own a particular access point, please remember to get permission from the owner prior to playing with it. It is recommended that you experiment with your home wireless access point to get familiar with these ideas and techniques. The authentication methodology is basically the same between them. There is no difference between cracking WPA or WPA2 networks. If it is not in the dictionary then aircrack-ng will be unable to determine the key. IMPORTANT This means that the passphrase must be contained in the dictionary you are using to break WPA/WPA2. You will be very surprised at how much time is required. DOWNLOAD BACKTRACK 5 CRACK WIFI PASSWORDIf you are thinking about generating your own password list to cover all the permutations and combinations of characters and special symbols, check out this brute force time calculator [ first. It can take hours, if not days, to crunch through a large dictionary. Because it is very compute intensive, a computer can only test 50 to 300 possible keys per second depending on the computer CPU. The impact of having to use a brute force approach is substantial. Conversely, if you want to have an unbreakable wireless network at home, use WPA/WPA2 and a 63 character password composed of random characters including special symbols. The only time you can crack the pre-shared key is if it is a dictionary word or relatively short in length. Since the pre-shared key can be from 8 to 63 characters in length, it effectively becomes impossible to crack the pre-shared key. Although not absolutely true, for the purposes of this tutorial, consider it true. Handshaking is done when the client connects to the network. The only thing that does give the information to start an attack is the handshake between client and AP. ![]() That is, because the key is not static, so collecting IVs like when cracking WEP encryption, does not speed up the attack. Unlike WEP, where statistical methods can be used to speed up the cracking process, only plain brute force techniques can be used against WPA/WPA2. This is the approach used to crack the WPA/WPA2 pre-shared key. There is another important difference between cracking WPA/WPA2 and WEP. So make sure airodump-ng shows the network as having the authentication type of PSK, otherwise, don't bother trying to crack it. ![]() aircrack-ng can ONLY crack pre-shared keys. WPA/WPA2 supports many types of authentication beyond pre-shared keys. The WPA Packet Capture Explained tutorial is a companion to this tutorial. I recommend you do some background reading to better understand what WPA/WPA2 is. DOWNLOAD BACKTRACK 5 CRACK WIFI HOW TODownload 'Tutorial: How to Crack WPA/WPA2'ġ Tutorial: How to Crack WPA/WPA2 Version: 1.20 MaBy: darkaudax Introduction This tutorial walks you through cracking WPA/WPA2 networks which use pre-shared keys.
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