Patent number: 11151235
Abstract: Techniques are disclosed relating to biometric authentication, e.g., facial recognition. In some embodiments, a device is configured to verify that image data from a camera unit exhibits a pseudo-random sequence of image capture modes and/or a probing pattern of illumination points (e.g., from lasers in a depth capture mode) before authenticating a user based on recognizing a face in the image data. In some embodiments, a secure circuit may control verification of the sequence and/or the probing pattern. In some embodiments, the secure circuit may verify frame numbers, signatures, and/or nonce values for captured image information. In some embodiments, a device may implement one or more lockout procedures in response to biometric authentication failures. The disclosed techniques may reduce or eliminate the effectiveness of spoofing and/or replay attacks, in some embodiments.
Type:
Grant
Filed:
July 31, 2018
Date of Patent:
October 19, 2021
Assignee:
Apple Inc.
Inventors:
Deepti S. Prakash, Lucia E. Ballard, Jerrold V. Hauck, Feng Tang, Etai Littwin, Pavan Kumar Anasosalu Vasu, Gideon Littwin, Thorsten Gernoth, Lucie Kucerova, Petr Kostka, Steven P. Hotelling, Eitan Hirsh, Tal Kaitz, Jonathan Pokrass, Andrei Kolin, Moshe Laifenfeld, Matthew C. Waldon, Thomas P. Mensch, Lynn R. Youngs, Christopher G. Zeleznik, Michael R. Malone, Ziv Hendel, Ivan Krstic, Anup K. Sharma, Kelsey Y. Ho
Publication number: 20210286865
Abstract: Techniques are disclosed relating to biometric authentication, e.g., facial recognition. In some embodiments, a device is configured to verify that image data from a camera unit exhibits a pseudo-random sequence of image capture modes and/or a probing pattern of illumination points (e.g., from lasers in a depth capture mode) before authenticating a user based on recognizing a face in the image data. In some embodiments, a secure circuit may control verification of the sequence and/or the probing pattern. In some embodiments, the secure circuit may verify frame numbers, signatures, and/or nonce values for captured image information. In some embodiments, a device may implement one or more lockout procedures in response to biometric authentication failures. The disclosed techniques may reduce or eliminate the effectiveness of spoofing and/or replay attacks, in some embodiments.
Type:
Application
Filed:
February 22, 2021
Publication date:
September 16, 2021
Inventors:
Deepti S. Prakash, Lucia E. Ballard, Jerrold V. Hauck, Feng Tang, Etai Littwin, Pavan Kumar Ansosalu Vasu, Gideon Littwin, Thorsten Gernoth, Lucie Kucerova, Petr Kostka, Steven P. Hotelling, Eitan Hirsh, Tal Kaitz, Jonathan Pokrass, Andrei Kolin, Moshe Laifenfeld, Matthew C. Waldon, Thomas P. Mensch, Lynn R. Youngs, Christopher G. Zeleznik, Michael R. Malone, Ziv Hendel, Ivan Krstic, Anup K. Sharma