software crack wifi

On a number of APs, it is posible to configure so that the SID transmited in the Beacon frames is masked, or even turn of Beacons altogether. The SID shown in the Beacon frames is set to nul in the hope of making the WLAN invisible unles a client already knows the corect SID. If the Beacons are not turned of, and the SID in them is not set to nul, an atacker obtains the SID included in the Beacon frame by pasive scaning. Both frames wil contain the SID in the clear, and the atacker snifs these. If the station wishes to join any available AP, it sends Probe Requests on al chanels, and listens for Probe Responses that contain the SIDs of the APs. The station considers al Probe Responses, just as it would have with the non-empty SID Beacon frames, to select an AP. The atacker can kep snifing waiting for a voluntary Asociate Request to apear from a legitimate station that already has a corect SID and snif the SID as described above. The atacker can also chose to actively probe by injecting frames that he constructs, and then snifs the response as described in a later section. The atacker snifs a large number of frames from a single BS. These frames al use the same key. The mathematics behind the systematic computation of the secret shared key from a colection of cipher text extracted from these frames is described elsewhere in this volume. The number of encrypted frames that were mathematicaly weak is a smal percentage of al frames. In a colection of a milion frames, there may only be a hundred mathematicaly weak frames.
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