How could I confirm a new user registration via SMS?

Question

I am building a mobile-focused web application, to later convert to hybrid, and I would prefer new user registrations confirm the user's phone number versus their email address.

I would like to send a new user an SMS with a unique code. When they first log in, they must enter that code to activate their account.

I have a custom SMS service that is sending SMS fine, and would like to know how to integrate this into the Identity registration process.

Please note that I do not wish to use SMS for routine two-factor authentication.

Answer 1

You can use create additional actions in your account controller and use methods from Microsoft.AspNet.Identity.Core

1. UserManager.GenerateChangePhoneNumberToken
2. Send sms with token
3. UserManager.VerifyChangePhoneNumberToken
4. Add custom logic to authorization