When using 802.1x authentication - it is simply not possible to break the password it is only doable where local PSK mode is used. WPA and WPA2 standards supports two types of authentications - Pre-Shared Key (PSK) and true 802.1x based on external authentication server. In fact, this is the only weak point, where you may try your chances for breaking the WPA (and WPA2 in fact). WPA uses 802.1x (EAP-based authentication) for authentication of the clients. Authentication used in WPA standard has also advanced in respect to one used in WEP. Taking all of these points into account, it makes WPA standard computationally not-possible to crack (it does not say it is not possible, but it may take reasonably a very long time, assuming you have advanced resources for breaking the algorithm). It introduces Enhanced Data Integrity (EDI) to defeat bit-flipping attack possible in WEP. It uses an advanced key mixing algorithm in order to defeat IV collisions and weak-key attacks in WEP. It uses sequencing to defend against replay and injection attacks. It uses temporal, dynamically created keys instead of static ones used by WEP. TKIP modifies WEP with the following pointers −
Wireless frames using WPA, are using TKIP encryption that still uses the concept of IV and RC4 algorithm, however it is modified in order to be more secure. The way to break a WPA encryption has a slightly different approach. It is that easy! The detailed step by step guide for hacking WEP will be shown under the topic of "Pen Testing WEP Encrypted WLAN ". On a highly congested network, the above mentioned two steps can take around 5-10 minutes or even less. When enough packets are collected (you have collected a set of frames with duplicate IV vector), you try to crack the network using a tool called "aircrack-ng". This step may be performed using a Linux tool called "airodump-ng". There are many possible tools that one can use to crack WEP, but all of the approaches follow the same idea and order of steps.Īssuming that you have found your target network, you do as follows −Ĭollect (sniff) WEP encrypted packets flying over the air.
#How long to crack wep how to
In this chapter, we will see how to break WEP and WPA encryptions.
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