Login Procedure that does not require a Email Address - asp.net-mvc-3

Question

I have been asked to create a site where the user isn't required to provide a email to login because of privacy issues. In the past I have simple said this isn't advisable but in this case the client has stringently requested it. My initial thoughts are to potentially create administrators with a email whom could create generic logins (username and a password) and pass them to members of there group on site. Then at least I have a point of contact for login resets and such.
Has anyone had any experience with such situations where they have needed to create logins without the use of a email address? Could you direct me towards any relevant materials or tutorials that may be of use. I'm using MVC3 to develop this project.

Answer 1

I hope I understand your question right and you want to implement a login using username and password instead of email adress and password.
In that case you would have to implement your own custom membership provider and a custom roleprovider if needed.
You want to check the following page for more information:
Custom Membership Provider # Codeproject
EDIT
Fyi you dont need to implement every function - just implement the ones you need.
Custom membership provider from some of my older mvc3 projects. Removed most of the not-implemented functions for shorter code:
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.Security;
namespace Domain.Models
{
public class PlatformMembershipProvider : MembershipProvider
{
public SalesModelContainer ******** = new SalesModelContainer();
public override bool ChangePassword(string username, string oldPassword, string newPassword)
{
var user = ********.UserSet.Single(s => s.Email == username);
if (user.Password == oldPassword)
{
user.Password = newPassword;
return true;
}
else
{
return false;
}
}
public override string GetUserNameByEmail(string email)
{
var user = ********.UserSet.Single(s => s.Email == email);
return user.CompanyName;
}
public override void UpdateUser(System.Web.Security.MembershipUser user)
{
throw new NotImplementedException();
}
//TODO: use MD5 for password encryption
public override bool ValidateUser(string username, string password)
{
bool returnValue;
var user = ********.UserSet.SingleOrDefault(s => (s.Email == username) && (s.Password == password));
if (user != null)
returnValue = true;
else
returnValue = false;
return returnValue;
}
}
}