公开(公告)号：US20220405408A1

公开(公告)日：2022-12-22

申请号：US17638910

申请日：2020-08-31

Applicant: Fingerprint Cards Anacatum IP AB

Inventor： David CARLING ,  Joachim STRÖMBERGSON

IPC: G06F21/62 ,  G06V40/13 ,  G06V40/50

Abstract: The present disclosure relates to a fingerprint sensing system and a method performed by the fingerprint sensing system of verifying that setting data of a fingerprint sensor of the fingerprint sensing system has not been modified. In aspect, a method performed by a fingerprint sensing system of verifying that setting data of a fingerprint sensor of the fingerprint sensing system has not been modified is provided. The method comprises blocking access to the fingerprint sensor setting data held in a storage of the fingerprint sensing system, acquiring from the fingerprint sensor a representation of the fingerprint sensor setting data to be utilized upon capturing a fingerprint image, and verifying from the acquired representation if the fingerprint sensor setting data corresponds to fingerprint sensor setting data that previously was written to the storage.

公开(公告)号：US20220337406A1

公开(公告)日：2022-10-20

申请号：US17640914

申请日：2020-09-04

Applicant: Fingerprint Cards Anacatum IP AB

Inventor： Dawid PIHL ,  Joachim STRÖMBERGSON

IPC: H04L9/08 ,  G06F21/72

Abstract: A biometric device comprising: biometric sensing circuitry; cryptographic circuitry; a device key area in the biometric device for storing a cryptographic device key unique to the biometric device; and a test key area in the biometric device, for storing a cryptographic test key. The biometric device is controllable between: a test state in which the test key area is connected to the cryptographic circuitry to provide the test key to the cryptographic circuitry, and the cryptographic circuitry is prevented from performing cryptographic operations on data provided by the biometric sensing circuitry; and a functional state in which the device key area is connected to the cryptographic circuitry to provide the device key to the cryptographic circuitry, and the cryptographic circuitry is connected to the biometric sensing circuitry to receive and perform cryptographic operations on data from the biometric sensing circuitry using the device key.