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Forums » WPA Wi-Fi Encryption Is Partially Cracked
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Comments on news posted 2008-11-06 18:03:22: Given that WEP (Wired Equivalent Privacy) can be compromised in a matter of minutes, many people now use WPA (Wi-Fi Protected Access)on their wireless routers. ..

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Sacurtis

join:2004-02-25
Prosper, TX
WPA Crack

So this basically means that someone can't sniff my data but they can get on my network....Correct?


TKJunkMail
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1 edit
said by Sacurtis See Profile :

So this basically means that someone can't sniff my data but they can get on my network....Correct?
Not exactly. They can see the data that is going TO the PC from the wireless router. They just can't see the data flowing FROM the PC back thru the router to the web host.
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danza
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join:2002-08-23
reply to Sacurtis
Seems like it.

They didn't mention AES at all in the article though.


swhitney2003
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WPA2

Soon enough WPA will be the new WEP. Thank goodness for another change of style, AES. Is there any word on a WPA3 (or whatever the next gen might be).


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1 edit
reply to danza
Re: WPA Crack

said by danza See Profile :

Seems like it.

They didn't mention AES at all in the article though.
Read comments to the news item from PCWorld:
»www.pcworld.com/article/153396/

A thread in the Security forum discusses this:
»New method found to crack WPA - but not WPA2
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tmh

@qwest.net

Not news

TKIP has its foundations in WEP. The main improvement being that a new key was generated every X minutes. It looks like someone's figured out a faster way to break WEP?

True?

Looks like AES is still secure.

Kearnstd
Elf Wizard
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join:2002-01-22
Mullica Hill, NJ

reply to Sacurtis
Re: WPA Crack

so they cracked it but it is still more secure then WEP. id still compair WPA-TKIP to a deadbolt on your door and no windows in reach of ground level. someone can get in but they have to work at it.

WPA2-AES is more like a motion sensing machinegun on the roof.
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swhitney2003
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What is no wireless then (only a hardwired lan)? :-P


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reply to tmh
Re: Not news

said by tmh :

TKIP has its foundations in WEP. The main improvement being that a new key was generated every X minutes. It looks like someone's figured out a faster way to break WEP?

True?

Looks like AES is still secure.
Even if you are using WPA/TKIP, you can still better your odds by changing the "Key Renewal interval" in the wireless router from the usually default 3600 secs(60 mins) down to say 600 secs(10 mins). That should bring it under the time needed to crack the key. By the time they crack the key, it would already be changed.
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BIGMIKE
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join:2002-06-07
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reply to Sacurtis
Re: WPA Crack

Hacking Wireless Network is old news

Apr 05, 2005
Feds Hack Wireless Network in 3 Minutes
»hardware.slashdot.org/article.pl···from=rss

Turbo-charged wireless hacks threaten networks

Graphics cards encryption skulduggery

By John Leyden • Get more from this author

Posted in Enterprise Security, 10th October 2008 12:25 GMT

»www.theregister.co.uk/2008/10/10···hacking/

The latest graphics cards have been used to break Wi-Fi encryption far quicker than was previously possible. Some security consultants are already suggesting the development blows Wi-Fi security out of the water and that corporations ought to apply tighter VPN controls, or abandon wireless networks altogether, in response


tmh

@qwest.net


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TKJunkMail See Profile

reply to TKJunkMail
Re: Not news

said by TKJunkMail See Profile :

Even if you are using WPA/TKIP, you can still better your odds by changing the "Key Renewal interval" in the wireless router from the usually default 3600 secs(60 mins) down to say 600 secs(10 mins). That should bring it under the time needed to crack the key. By the time they crack the key, it would already be changed.
Tis funny you mentioned that. 5 years ago when I was running TKIP routers, I switched the key interval to 300 seconds. It wasn't adversely performance, so I figured "why not?".

tmh


battleop

join:2005-09-28
00000
reply to BIGMIKE
Re: WPA Crack

Your first example is about cracking WEP which is old news. This article is talking about cracking WPA, so they are not related.

You second example is not really cracking the WPA key, it's just a faster brute force attack.

cooperaaaron

join:2004-04-10
Joliet, IL
reply to BIGMIKE
Let's say I had a computer with two graphics cards, why can't someone come up with a way to use one of the graphics cards ( or some card that could be installed in a slot ) when it is idle or lightly used, to encrypt data ?


ftthz
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join:2005-10-17
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intersting... means people have to upgrade to wpa2


BloodRoses
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reply to cooperaaaron
Re: WPA Crack

Apple is doing something very similar to what you describe, or at least they're making it possible.

»en.wikipedia.org/wiki/OpenCL
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scooby
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join:2001-05-01
Schaumburg, IL

Everything is crackable...

Like I have said for years now. If it is human made, a human can crack it. It is just a matter of time.

Obviously the amount of time depends on the level of interest.

R.I.P. CSS - 1999
R.I.P. WEP - 2001
R.I.P. AACS - 2007
R.I.P. BD+ - 2008

AACS and BD+ cracked for sure? Who knows but there are lots of programs out there to let you get around it. That is close enough in my book.

jca2050
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join:2002-02-04
Lewisville, TX
·Verizon FIOS

WPA

WPA is still very secure if you have a complicated and long pass code. If you make your pass code something like ">SADFJL#()@!)OFKasfjksF2390SATf923()!%#%>", that's pretty much a guarantee that no one will crack it unless they have rainbow tables and a lot of time on their hands.

WPA has been crackable for a long time, it just requires you to deauth a client, capture the 4-way handshake when they reconnect and crack it with aircrack. If the pass code is something easy like "password" then you can run a standard dictionary attack on it and crack it in a matter of minutes. Although this method only works on WPA-PSK (pre-shared key) if I recall correctly, but just about every WPA protected AP I've seen uses WPA-PSK.

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1 edit
reply to Kearnstd
Re: WPA Crack

said by Kearnstd See Profile :

id still compair WPA-TKIP to a deadbolt on your door and no windows in reach of ground level.
Well, I'm not sure if I'd compare it to a deadbolt. I can pick the lock on a standard deadbolt in just a couple minutes using makeshift tools. I'm no locksmith either.

And this WPA cracking isn't quite available to the masses either, unlike WEP cracking.

Unless of course the key is a weak one, in which case it can be brute forced within a reasonable time frame. Good luck brute forcing a WPA key of 63 random characters (I think that's what the max is).

BosstonesOwn

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reply to swhitney2003
said by swhitney2003 See Profile :

What is no wireless then (only a hardwired lan)? :-P
Smart ?
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1 edit
reply to swhitney2003
said by swhitney2003 See Profile :

What is no wireless then (only a hardwired lan)? :-P
Pissed off midget with a flamethrower.
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