I need to create a custom provider so that logins go to my own database of customer information, rather than the default DNN implementation.  I've played a bit with the code for doing a membership provider.  I then ran into the authentication provider project.

What is the relationship of an authentication provider to a membership provider?

Which is more appropriate to customize if one wants to do their own login for DNN?

Thanks,

Dave

But how is this different than writing a membership provider that also keeps an external data store in sync with DNN's membership tables?  When is it better to write an authentication provider vs. a membership provider?

Thanks,Dave