Re: EAP-SIM simulation, how does Freeradius calculate MAC value in AT_MAC attribute

Tabibel Sami wrote:

I am working on the implementation of an EAP-SIM supplicant,

That doesn't have much to do with FreeRADIUS.

when i send to freeradius a EAP-Response/SIM/Start packet i receive as expected an EAP-Resquest/SIM/Challenge with AT_RAND (RAND value was specified in users file [2]) and AT_MAC, after this I should calculate MAC value and test if this value matches witch AT_MAC value sent by freeradius.

my question is how freeradius calculate MAC value in AT_MAC atribute ?

See the source code.

or from wich source freeradius fill MAC value in the AT_MAC attribute ?

See the source code. We're not in the business of helping you debug your code. Alan DeKok.