WPA hash tables - are they still available?

[9lives]

I've been reading the WPA cracking tutorial with internet, but the hash tables don't seem to be available any more. All the torrents I could find were dead, and they doesn't seem to have been re-posted anywhere.

Does anyone know where I can get either the 7GB or preferably the 33GB file?

If not, does anyone have a copy they would be willing to share, say via BitTorrent?

Last resort is to generate my own with the perl script, but it could take a long time if it's not done as a distributed project.

 

[TonyMaupin]

WPA hash tables

There are a few places that still have them. This is the best location (http://www.renderlab.net/projects/WPA-tables/). Something to keep in mind is that the hash tables have to be pre-computed for the SSID. So the hash tables that are created, can only be used for the SSIDs that they were created against. Odds are you will have to generate hash tables for the SSID you need, unless it is a commonly used SSID. I have included an explanation from Renderlab's website to help.

Tony Maupin
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It's been known for a while that WPA-PSK was vulnerable to brute force attack. Tools like Aircrack and coWPAtty took advantage of this weakness and provided a way to test keys against dictionaries.

Problem is, it's a very slow process. Each passphrase is hashed 4096 times with SHA-1 and 256 bits of the output is the resulting hash. This is then compared to the hash generated in the initial key exchange. Alot of computing power is required for this. My dopey little P3/700 laptop only tests about 12 passphrases/second.

To complicate matters, the key hash can be different depending on the network it's implimented on. The SSID and the SSID length is seeded into the passphrase hash. This means that the passphrase of 'password' will be hashed differently on a network with the SSID of 'linksys' than it will on a network with the SSID of 'default'.

 

[9lives]

There are a few places that still have them. This is the best location (http://www.renderlab.net/projects/WPA-tables/). Something to keep in mind is that the hash tables have to be pre-computed for the SSID. So the hash tables that are created, can only be used for the SSIDs that they were created against. Odds are you will have to generate hash tables for the SSID you need, unless it is a commonly used SSID. I have included an explanation from Renderlab's website to help.

I looked there, but as I said in my first post, the torrent links are dead so I can't download them.

I understand the limitations of the tables, but they are still worth having. The only realistic alternative is to do a dictionary attack which takes a lot longer. If that fails, brute force is probably unrealistic.

 

[jdabbs]

I looked there, but as I said in my first post, the torrent links are dead so I can't download them.

I understand the limitations of the tables, but they are still worth having. The only realistic alternative is to do a dictionary attack which takes a lot longer. If that fails, brute force is probably unrealistic.

Shmoo's tracker is down. I used their tracker last month to get a copy, so this must be a recent occurrence. No announcement implies the possibility that the outage is temporary. In the event it comes back up, the 33.5 GB torrent was last reachable @ http://umbra.shmoo.com:6969. If it comes back up only to not have enough seeders, post back and I'll help seed.

In the meantime, I think this is the 7GB one:
http://torrents.lostboxen.net/cowf-wpa-psk-hash-tables-with-cowpatty-4.0_2006-10-19

It's split up by SSID unlike the 34 GB one, but without downloading it, it looks ok.

You could also pay $50 + shipping to get a copy of the 34 GB from Renderman: render AT renderlab DOT net.

 

[9lives]

Okay, thanks jdabbs, that second link to the 7GB one finally worked. I guess I will just have to hope the shmoo tracker comes back up.

 

[jdabbs]

Shmoo started a new tracker yesterday:
http://205.127.87.136:6969/

I'll help seed for a few days (with me, there are two seeders w/ the 33.5 GB tables).