US 11,960,614 B2 · Secure storage of sensor setting data

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.

Claims13

Dependent claims

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, comprising:

blocking, upon receiving a fingerprint image capture command, access to the fingerprint sensor setting data held in a storage of the fingerprint sensing system;
subsequent to blocking access to the fingerprint sensor setting data, acquiring, from the fingerprint sensor, a representation of the fingerprint sensor setting data to be utilized upon capturing a fingerprint image;
verifying from the acquired representation if the fingerprint sensor setting data corresponds to fingerprint sensor setting data that previously was written to the storage;
and
when a captured image is read out, unblocking access to the fingerprint sensor setting data held in the storage of the fingerprint sensing system.

2 more elements

A fingerprint sensing system comprising a fingerprint sensor and at least one processor, the fingerprint sensing system being configured to verify that fingerprint sensor setting data held in a storage of the fingerprint sensing system has not been modified, the at least one processor being configured to:

block access to the fingerprint sensor setting data held in the storage of the fingerprint sensing system;
subsequent to blocking access to the fingerprint sensor setting data, acquire, from the fingerprint sensor, a representation of the fingerprint sensor setting data to be utilized upon capturing a fingerprint image;
verify from the acquired representation if the fingerprint sensor setting data corresponds to fingerprint sensor setting data that previously was written to the storage by the unit at least one processor;
and
when a captured image is read out, unblock access to the fingerprint sensor setting data held in the storage of the fingerprint sensing system.

2 more elements

Dependencies are inferred from the claim text.

Secure storage of sensor setting data

Life of this patent

Secure storage of sensor setting data

Life of this patent

Abstract

Claims13