c# - One Time Password (OTP) via SMS instead of static password -


i want develop following authentication process:

the user type username (email eventually). then, redirected verification page have type verification code (received via sms). must emphasize i'm not talking two-factor authentication.

i draw following diagram illustrate authentication process understand it: enter image description here

as developing, in understanding, "heavy-lifting" (otp generation, sms sending, authentication service etc.) executed server side (c#). client side (angularjs) have support communication new authentication api.

is right architecture approach authentication otp?

ps - of search results on web talking two-factor authentication, said not case.


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