CONTROLLED ACCESS TO FUNCTIONALITY OF A WIRELESS DEVICE

摘要

Various embodiments of the invention may be used to verify that a person being authorized by biometric techniques to use a device is a living person and not some form of recording intended to spoof the system. Some embodiments may try to cause a change in a measured biometric feature, and compare images taken before and after the change to verify the change occurred. In some embodiments, multiple stages of verification may be used, either to increase the difficulty of spoofing the security system, or to provide different levels of security for different levels of access to the device's functionality.

主权项

1. An apparatus comprising:
one or more processors; a touchscreen coupled to the one or more processors; a camera coupled to the one or more processors; and one or more non-transitory machine-readable media comprising instructions which, when executed by the one or more processors, cause the one or more processors to:
receive a request to access at least part of the apparatus's functionality;perform face authentication based on a first input from the camera, to determine if a person attempting to access the at least part of the functionality has been approved to do so;perform liveness verification, based on a second input from the camera, to determine whether the second input is from a living person corresponding to the person; andgrant access to the at least part of the functionality only if both the face authentication and the liveness verification are successful; the liveness verification to:
prompt the person to blink; anduse the camera to take a picture of at least a part of a face of the person.