All -- We recently received a contract to develop a mobile ASP.Net version of our web application but one of the requirements is that the user be required to enter a PIN the first time the application is used sort of like how most mobile banking applications work.
I have did some Google search on the matter but I keep on getting links on the Mobile Device Detection and Redirection.
Each user's pedigree information including their email address are entered into a User Store so I would be able to send out a PIN etc to the user's email address for them to enter into their Mobile browser but is this the best way to design this feature?
Are there any ways of identifying the mobile device other than having the user enter in manually?
Thanks!
Here is a link that I found regarding Two Step Authentication but it is using MVC.