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TKIP cracked

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  • renderman
    replied
    Re: TKIP cracked

    Originally posted by reusablesec View Post
    If you want a longer writeup, I posted an analysis of the attack to my blog. The short summary is I agree with Renderman. The attack is good work, but the practical implications of it aren't that dire.

    http://reusablesec.blogspot.com/2009...acked-yet.html
    Well written, thanks for sharing.

    Side note: Watched your DC talk last night, really good stuff.

    Leave a comment:


  • reusablesec
    replied
    Re: TKIP cracked

    If you want a longer writeup, I posted an analysis of the attack to my blog. The short summary is I agree with Renderman. The attack is good work, but the practical implications of it aren't that dire.

    http://reusablesec.blogspot.com/2009...acked-yet.html

    Leave a comment:


  • bascule
    replied
    Re: TKIP cracked

    Okay, sorry if my initial synopsis was a bit overzealous

    Leave a comment:


  • renderman
    replied
    Re: TKIP cracked

    eh, not so much. It allows disclosure on the MIC key which allows for injection of a few packets but does not disclose the encryption key.

    It's the Tews-Beck attack (Which is basically the WEP chopchop attack with a timer) which came out last year with a slight refinement (that seems kinda bogus) that reduces the time to inject from 12 minutes to 1 minute by offloading the CRC checks to the attacker instead of using the AP failure messages to do the work.

    It's not a new nail, just a refinement to existing attack that was more a crack in the armour than a break. Still, nice to see work continuing on breaking anything and everything.

    Leave a comment:


  • bascule
    started a topic TKIP cracked

    TKIP cracked

    http://tech.yahoo.com/news/pcworld/2...ptioninaminute

    TKIP, one of the major algorithms offered by WPA, has been thoroughly pwned. So yeah, use WPA2/AES.
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