This is needed to ensure that any tokens (cookies) generated with the old password are invalidated. The SecurityStampValidator.OnValidateIdentity method enables the app to validate the security token when the user logs in, which is used when you change a password or use the external login. The SecurityStamp field and associated code provides an extra layer of security to your app, when you change your password, you will be logged out of the browser you logged in with. Per the comments in the code, the UseCookieAuthentication method supports cookie authentication. See my two-factor authentication tutorial for more details. The 30 minute interval was chosen to minimize trips to the database. This only happens every 30 minutes (in our sample) unless you change your security profile. The SecurityStampValidator method in the Startup class hits the DB and checks security stamp periodically, as specified with the validateInterval. The cookie middleware checks the cookie on each request. The security cookie token is self-signed using DPAPI and is created with the UserId, SecurityStamp and expiration time information. The security cookie is not stored in the AspNetUsers table (or anywhere else in the Identity DB). Note, the SecurityStamp field is different from the security cookie. When you change your security profile, a new security stamp is generated and stored in the SecurityStamp field of the AspNetUsers table. For more information, see Per request lifetime management for UserManager class in ASP.NET Identity. ASP.NET Identity hooks into the OWIN pipeline through cookie middleware. A instance of ApplicationDbContext and ApplicationUserManager is stored in the OWIN context, which can be accessed throughout the application. You can set a break point in the constructor and Create method of each type ( ApplicationDbContext, ApplicationUserManager) and verify they are called on each request. Each CreatePerOwinContext call registers a callback (saved in the OwinContext) that will be called once per request to create an instance of the specified type. The OWIN startup class ( Startup.cs ) is called when the app starts and invokes the ConfigureAuth method in App_Start\, which configures the OWIN pipeline and initializes ASP.NET Identity. See Additional Resources section at the end of this tutorial. The default data store for ASP.NET Identity is Entity Framework, but you can configure it to use other data stores and to add additional fields. Right-click on the AspNetUsers table and select Show Table Data.Īt this point the email has not been confirmed. The following image shows the AspNetUsers schema: In Server Explorer, navigate to Data Connections\DefaultConnection\Tables\AspNetUsers, right-click and select Open table definition. At this point, the only validation on the email is with the attribute. Run the app, select the Register link and register a user. Web Forms also support ASP.NET Identity, so you could follow similar steps in a web forms app.Ĭhange the authentication to Individual User Accounts. Start by installing and running Visual Studio 2017.Ĭreate a new ASP.NET Web project and select the MVC template. Selecting the Reset button will confirm the password has been reset. Selecting the link will take them to the Reset page. The user will soon get an email with a link allowing them to reset their password. Local users who forget their password can have a security token sent to their email account, enabling them to reset their password. The user is sent an email with a confirmation token for their account. Selecting the Register button sends a confirmation email containing a validation token to their email address. New users register their email alias, which creates a local account.
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