how does an empty frame look like? all 2b 's? i can't see any in wireshark while using the mobile app.
----- Oorspronkelijk e-mail ----- Van: "Karsten Nohl" <[email protected]> Aan: "A51 List" <[email protected]> Verzonden: Donderdag 27 december 2012 11:08:08 Onderwerp: Re: [A51] guesing frames On Dec 27, 2012, at 10:31 , [email protected] wrote: > can you elaborate a bit more about the topic of guessing the right frame? > > i'm trying to find all possible combinations of SI6 frames (Power level = 5, > power level = 8, TA=0, TA= 1) > at offsets of 102,204,306 frames. > the question is: from where is this offset taken? from the last SI5 (or > si5ter) frame ? of from the start encryption command? > > am i on the right track? or am i just doing stupid things? Sounds right so far. We instead use empty frames and guess that there are some empty frames somewhere in the transaction. Cheers, -Karsten > i want to demonstrate to audience what you guys did at 27c3... but i am far > from it... :( > > > ----- Oorspronkelijk e-mail ----- > Van: "Karsten Nohl" <[email protected]> > Aan: "A51 List" <[email protected]> > Verzonden: Donderdag 27 december 2012 10:06:02 > Onderwerp: Re: [A51] guesing frames > > On Dec 26, 2012, at 17:04 , [email protected] wrote: >> what is the most easy and succesful: guess a downlink frame or an uplink >> frame? > > Kraken requires 64 continuos bits of error-free key stream. Uplink frames are > typically received at a lower quality than downlink frames, consequently > having a lower chances of yielding 'crackable' segments. > > Cheers, > > -Karsten > > _______________________________________________ > A51 mailing list > [email protected] > http://lists.lists.reflextor.com/cgi-bin/mailman/listinfo/a51 _______________________________________________ A51 mailing list [email protected] http://lists.lists.reflextor.com/cgi-bin/mailman/listinfo/a51 _______________________________________________ A51 mailing list [email protected] http://lists.lists.reflextor.com/cgi-bin/mailman/listinfo/a51
