Re: [Open1x-xsupplicant] MPPE keys management

[kky <mi...@in...>]

I've checked ethereal and i get only ARP requests without success, this
helps ?
thx

kky wrote:
> hi all,
> I'm developing an EAP method but i'm having a problem with MPPE protocol
> keys, when my auth. procedure finishes with success i get associated to
> the NAS and Xsupplicant says that my state is AUTHENTICATE but i cant
> ping any host!!
> so i suppose the problems where the keys:
>
> on server side (freeRadius) when the authentication finishes i put the
> Master Session Key (shared secret of 64 bytes) in the attributes
> MS-MPPE-Recv-Key (first 32 bytes intended for encrypting packets
> received by the NAS from the remote host) and MS-MPPE-Send-Key ( next 32
> bytes intended for encrypting packets sent from the NAS to the remote host);
>
> on Xsupplicant i set interface_data->keyingMaterial to MSK (64 bytes), 
> i tried to swap the first and last 32 bytes but didn't change nothing,
> how should i set them ? should i set some other parameters ?
>
> interface_data->keyingLength set to 32, like other methods.
>
> thanks,
> kky
>
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