User Auth Recommendation

[eluser]mabright[/eluser]
I have finally gotten my site to the point where I am ready to focus on user authentication. I will have public users and also admin users which will be directed to a control panel. I have written auth logic before in my old site but I want to make sure I am using the most secure techniques.

Can anyone recommend an existing library or tutorial?

[eluser]Flak[/eluser]
ION AUTH.

[eluser]smilie[/eluser]
+1 for Ion Auth, been using it couple of days now, does everything I need :-)

Cheers,
Smilie

[eluser]mabright[/eluser]
Thanks, I am looking at it now.