Uniquely identify IPhone on a web application

Question

I have a website and I would like to open it to some of our corporate IPhone users, but without their intervention :

• I enter their IPhone "serial #" into our webapp
• When they connect to the webapp, if their "serial #" is recognised they can pass, otherwise, access denied.

Is there such a "serial #" ?

I've thought about a SMS with a unique link that will place a cookie. If the cookie is present, they can get in. But if they delete the cookie, they need to call us to get a new unique link.

Answer 1

Take a look at the uniqueIdentifier property on the UIDevice class. It's probably your best shot.