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What Wireless Security Type?

Discussion in 'Networking' started by dungeonguard, Jul 3, 2007.

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  1. dungeonguard

    dungeonguard Thread Starter

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    What security type should I use? 64 WEP or 128 WEP?
     
  2. TerryNet

    TerryNet Terry Moderator

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    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.
     
  3. cwwozniak

    cwwozniak Chuck Trusted Advisor

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    FWiW we are talking under one minute. :eek:

    http://www.techworld.com/security/news/index.cfm?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.​
     
  4. TerryNet

    TerryNet Terry Moderator

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    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."
     
  5. cwwozniak

    cwwozniak Chuck Trusted Advisor

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    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/showthread.php?t=568284
    http://forums.techguy.org/showthread.php?t=574797
     
  6. JohnWill

    JohnWill Retired Moderator

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    The weakness of WEP pushed me to using WPA all around here. :)
     
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