asp .net Identity, how to add field to login process

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C#

Microsoft

MVC4

web_application

, +

Hi, I want to use Asp .net Identity 2 tools for user authentication, by default, identity get username (email) and hashed password for login but i need customize it to get this fields for login :

1- national code
2- username not email, just username
3- password (hashed by identity)

please help me how to customize identity.

thank you.