asp.net membership login with alternate password

Question

I am making an ASP.NET application and using ASP.NET membership controls for users to login. I want user can login using his normal password or a quick login (which allows user to create a 4 digit password similar to ATM PIN) for a quick login experience. How do I achieve this?

Answer 1

You need to extend the basic membership provider and use it. Here is a start point.

public class DoublePasswordProvider : SqlMembershipProvider
{
    public override bool ValidateUser(string username, string password)
    {
        if (checkPIN(username, password)) return true;
        return base.ValidateUser(username, password);
    }
}

Then edit we.config to use it:

<membership defaultProvider="DoublePasswordProvider">
      <providers>

        <add name="DoublePasswordProvider" type="YourNamespace.DoublePasswordProvider" connectionStringName="ApplicationServices"
             enablePasswordRetrieval="false" enablePasswordReset="true" requiresQuestionAndAnswer="false" requiresUniqueEmail="false"
             maxInvalidPasswordAttempts="5" minRequiredPasswordLength="6" minRequiredNonalphanumericCharacters="0" passwordAttemptWindow="10"
             applicationName="/" />
      </providers>
    </membership>

Finally use standard asp.net controls (login, change password, bla bla)