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What Wireless Security Type?


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dungeonguard's Avatar
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03-Jul-2007, 08:50 PM #1
What Wireless Security Type?
What security type should I use? 64 WEP or 128 WEP?
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03-Jul-2007, 09:05 PM #2
WPA-PSK if all devices support it.

I assume that 128-bit WEP takes a little longer to crack than 64-bit, so that would be my second choice.
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03-Jul-2007, 10:12 PM #3
Quote:
Originally Posted by TerryNet
WPA-PSK if all devices support it.

I assume that 128-bit WEP takes a little longer to crack than 64-bit, so that would be my second choice.
FWiW we are talking under one minute.

http://www.techworld.com/security/ne...fm?newsid=8456
Now it takes just 3 seconds to extract a 104-bit WEP key from intercepted data using a 1.7GHz Pentium M processor. The necessary data can be captured in less than a minute, and the attack requires so much less computing power than previous attacks that it could even be performed in real time by someone walking through an office.
Difference between 108 and 128 bit keys:

https://www.grc.com/passwords.htm
WEP key strength (key length) is sometimes confusing because, although there are only two widely accepted standard lengths, 40-bit and 104-bit, those lengths are sometimes confused by adding the 24-bit IV (initialization vector) counter to the length, resulting in 64-bit and 128-bit total key lengths.

However, the user only ever specifies a key of either 40 or 104 binary bits.
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03-Jul-2007, 10:27 PM #4
OK, the next time I see three German security researchers outside I'll just hand over my computer!

Interesting article, Chuck. But I think I'll still use 128-bit when can't use WPA. Just seems like if it's harder for me it should be harder for "them."
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04-Jul-2007, 12:11 AM #5
I showed a similar article to my manager a couple of months ago and explained to him that our current router (that connected all desktop PCs and wireless notebooks to the business server) only supported WEP. I was installing a new WPA enabled router a few days later. The fun part was keeping some WEP only wireless security cameras accessible from the LAN and Internet

Mixing Wireless WEP and WPA in same building
http://forums.techguy.org/networking/568284-mixing-wireless-wep-wpa-same.html
http://forums.techguy.org/networking/574797-web-cams-test-request.html
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04-Jul-2007, 03:07 PM #6
The weakness of WEP pushed me to using WPA all around here.
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