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How does this work?
by chirau 7y ago
How does this work?
- hocuspocus 7y agoI'm not aware of the details, but I imagine something very similar to EMV payments. The only difference is that you need to register your SIM with the service beforehand, using a reasonably secure process. Banks make you use their own MFA before you can enable Mobile ID (and no, it's never over SMS).
- Nextgrid 7y agoPresumably there's an applet in the SIM card that holds a key pair and allows you to sign stuff by providing the SIM PIN. You interact with it via STK which is an old standard allowing SIMs to tell the phone to draw rudimentary UIs and ask the user for input.