Login structure

[ronbowalker]

I am wanting to prompt the user to make a password login at opening of an app, and then be compared to a stored "password" for verification. My problem is that I want to have this "password" in a location that can be edited when I do a xml parse further into the app. This allows me to modify the password when need be. My question is: What stored location do I need to focus this task? Plist? UserDefault Location? Where? Hard Coding will not allow me to modify as needed. Any help would be greatly appreciated. I just don't know xcode well enough to know the best way to go. I don't want server connection, because I am not always in 3G area or Wifi LAN.

Thanks for your help,
Ron