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Reply To: AuC – Authentication Center


I have couple of new info from one GSM provider about A3/A8 – Implementation is done by AuC supplier, provider gets some questionary – there are probably clarified slectable (optional) things (parameters of A3/A8). Similar questionary GSM provider gets from SIM card supplier. After filling them implemetation phase begins, during implementation SIM cards supplier cooperates with AuC supplier. Then for each SIM card it has to be loaded at least Ki (plus maybe some info – values of parameters of A3/A8 used for this SIM???) into AuC in encrypted way. But I’m not sure if it is really in practice as I write above – can anybody confirm my guesses? Question is if questionaries are based on A3/A8 proposals from GSM forum? In other words – What positive does it bring (imply) the membership in GSM forum for AuC supplier?