The iOS 7 beta 4 release, made available to developers Monday, includes a folder called "BiometricKitUI" and command strings that describe the fingerprint scanning process.
Photo of a person holding an iPhone with their left hand while touching the Home button with their thumb_;
A fingerprint that changes colour during the setup process._
iPhoto of a person holding an iPhone with their right hand while touching the Home button with their thumb_Recognition is
Developer Hamza Sood, who uncovered the strings, said the fingerprint sensor would be contained in the phone's home button.
iPhone home button to contain fingerprint sensor (found in beta 4) pic.twitter.com/tUlZ6xjeer— Hamza Sood (@hamzasood) July 29, 2013
Apple acquired fingerprint recognition chip firm AuthenTec last July, fueling rumors that the technology would be a key component to the next iPhone.