After reading about how Touch ID actually works, and how it reads the characteristics of the electrical field created between the sensor and the valleys of your finger's living skin tissue, I think it will take something more sophisticated than this professor's gelatin mold. Also, there is no software image of your fingerprint stored on the iPhone, it's a hashed signature of various data points from the electrical field, not a 2D or 3D representation of your fingerprint. Of course I'm not a biometric security expert, just someone who's been reading about Touch ID, so maybe I'm wrong.