SIM-Max Tech's Super-SIM

[Alfonso De Gregorio]

On Tue, Mar 8, 2011 at 3:28 PM, Henk <henk.vergonet at gmail.com> wrote:
> Actually comp128-2 has a 54bit Kc it seems.

Have you observed a COMP128-2 implementation returning a 54bit long
Kc?, or have you heard about this from somebody else?
Can you please disclose more about the SIM model and the operator
running this A3/A8 implementation?

One more weakened key derivation function (after the first version)
would be interesting per se. Still, it would be even more interesting
to give a closer look at this obscure cipher we carry in our
pockets...

A programmable SIM with COMP128v2 would be valuable for a project I'd
like to contribute.

Cheers,

alfonso


> 246tnt at gmail.comschreef:
>
>>> On a related note, does anyone have any SIMs for sale, implementing
>>> A3/A8 with COMP128-2, still to be provisioned with its Ki or already
>>> provisioned with a known Ki?
>>
>>Comp128v2 ?
>>I don't think so ...
>>
>>All the cards we have use COMP128 v1, the spec for v2 have not been leaked
>>(yet ?).
>>
>>For those, you best bet is ebay, search for "super sim" / 16-in-1 / "magic
>>sim" things like that.
>>Dealextreme also has some.
>>
>>If you need more quantity, you can often contact those vendor directly and
>>they'll be happy to send you a bunch.
>>I myself bought a lot directly emailing the guys at magicsim.com
>>
>>Cheers,
>>
>>Sylvain
>



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