Ask user for SIM Card PIN

Question

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I'm writing an app which, in order to correctly authenticate the user, it should ask him to input the correct SIM Card. Is it possible, or will I have to user another PIN just for the app authentication?

Femineity

Answer 1

I am not sure if it is possible, but as there are devices out there that have no SIM (think tablets with WLAN only), it may be a better idea to have a different PIN that is not SIM-related.

Trioecious

Yes, I'm considering that hypothesis. If a SIM card is present, the app asks for it; if not, user is able to choose his own PIN. – Femineity