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Key generation from an imaging sensor

An imaging sensor, sensor technology, applied in key distribution

Active Publication Date: 2019-04-30
SECURE IC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] These existing methods have limitations

Method used

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  • Key generation from an imaging sensor
  • Key generation from an imaging sensor
  • Key generation from an imaging sensor

Examples

Experimental program
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Embodiment Construction

[0024] figure 1 A system view of an embodiment of the invention is shown.

[0025] The figure shows a computer device 1 comprising an imaging sensor 100 .

[0026] A "sensor" is an object or device whose purpose is to measure or detect events or changes in its environment and then provide a corresponding output. The sensor can monitor still images. Sensors can also monitor the value of selected parameters.

[0027] In some embodiments, sensors according to the invention may be imaging sensors. An "image sensor" or "imaging sensor" is a sensor that detects and transmits information that makes up an image. Image sensors include, for illustration purposes, digital cameras, camera modules, medical imaging devices, night vision devices such as thermal imaging devices, radar, sonar, and others.

[0028] In some embodiments, a sensor according to the invention may be a time-of-flight (TOF) camera. This sensor does not construct an image itself, but a distance matrix.

[0029] ...

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Abstract

There is disclosed a method of handling a sensor, comprising the steps of: challenging a subset of sensor components under uniform conditions; receiving output signal values from said subset; for eachcomponent, determining the statistical moment of order i of the temporal distribution of the output signal value of said each sensor component; and determining one or more pathological sensor components whose sum of the distances of values to other components of the subset is greater than a threshold, the distance between two sensor components being determined by the difference of the i statistical moment values of the two temporal distributions associated to the components obtained when challenging said subset under uniform conditions. Described developments comprise the use of imagingsensors, key or identifier generation, authentication mechanisms, determination of thresholds, use of helper data files, adjustments of light sources and / or beam shaping, handling of lossy compressionand of videos.

Description

technical field [0001] The present invention relates generally to the field of digital data processing, and more particularly to methods and systems for generating keys from imaging sensors. Background technique [0002] Imaging sensors such as cameras or displays are now widely used in consumer electronic devices such as smartphones, computer equipment, Internet of Things (IoT) devices, and the like. [0003] Several known methods address the security of such sensors. Some existing methods describe how to use cameras and / or displays to authenticate users. The imaging sensor itself is rarely considered. [0004] These existing methods have limitations. [0005] In particular, there is a need for methods and systems for reliably generating credentials, such as identifiers or keys, from imaging sensors. Contents of the invention [0006] A method of operating a sensor is disclosed, comprising the steps of: challenging a subset of sensor components under uniform condition...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L9/06H04L9/08H04L9/32
CPCH04L9/0618H04L9/0643H04L9/0861H04L9/0869H04L9/3242H04L9/3247H04L9/0866H04L9/3278G06F21/45H04N17/002
Inventor A·法孔S·吉耶
Owner SECURE IC
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