Given them different rumors that are running to Samsung would eliminate the button home in its new Galaxy S8, the latest leaks are running to the scanner fingerprint would be located under the screen.
The technology used would be with optical cameras that take images in 2D, so the process would be dramatically faster than current sensors. The problem is security, since this technology has proved to be vulnerable in ways as simple as a photo of your footsteps.
Obviously, Samsung you would not risk compromising the security of the data of the users, so it is likely they are developing some kind of new technology with which to surprise us in February, when announcing the new S8 Galaxy.
