For those of you familiar with M. Hartl’s RoR Tutorial, do you know if the latest authentication system taught in the book is full proof for a large scale application or would you recommend going in with a ready made authentication systems like Devise or OAuth.
I find the system taught in the book very easy to follow as compared to the ready made systems. I am just not sure if there are any security loopholes in it.
Go with Devise.
Rolling out your own authentication system is great for practice, but many minds beats one, especially when it comes to security.