How do I create a login system for an iPhone application.

Question

Hi guys,

I'm trying to make a login system for my cocoa app. How would I do this? I know it involves SQL, but I know nothing of SQL. I want the user to register or login. It would be easier if apple had a source code for this kind of thing, but I don't think they do.

Best Regards,

Kevin

Answer 1

Implement the login system on the server. Then all you have to worry about in your app is:

1. send them to your website via URL to sign up
2. query for a name and password
3. if name and/or password is incorrect more than three times, go to 1
4. user is logged in. Do something.

Answer 2

You can also use the keychain on the iPhone to securely store and retrieve passwords. Here's excellent code from Sci-Fi Hi-Fi. You prompt for a password, store it securely in the keychain for later comparison. Pretty simple. Documentation on the site.