Identity card with physical unclonable function
First Claim
Patent Images
1. An identity card, comprising:
- a card body;
a physical unclonable function arranged within the card body, wherein the physical unclonable function comprises a first light influencing layer and a second light influencing layer, said first light influencing layer and said second light influencing layer being arranged within the card body;
a light source for emitting light towards the first light influencing layer and the second light influencing layer; and
an optical sensor for sensing light from the first light influencing layer and the second light influencing layer in response to the emitted light.
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Abstract
An identity card, comprising a card body and a physical unclonable function arranged within the card body, wherein the physical unclonable function comprises a first light influencing layer and a second light influencing layer.
18 Citations
14 Claims
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1. An identity card, comprising:
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a card body; a physical unclonable function arranged within the card body, wherein the physical unclonable function comprises a first light influencing layer and a second light influencing layer, said first light influencing layer and said second light influencing layer being arranged within the card body; a light source for emitting light towards the first light influencing layer and the second light influencing layer; and an optical sensor for sensing light from the first light influencing layer and the second light influencing layer in response to the emitted light. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
wherein the first pattern and the second pattern are displaced with respect to each other.
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10. The identity card of claim 8, the surfaces of the spaced surface elements of the first light influencing layer have equal or different dimensions than surfaces of the spaced surface elements of the second light influencing layer.
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11. The identity card of claim 1, wherein the respective light influencing layer comprises spaced surface elements respectively having a wavelength-scale surface dimensions or thicknesses, or wherein the respective light influencing layer comprises spaced surface elements respectively spaced apart by a wavelength-scale distance, or wherein a distance between the first light influencing layer and the second light influencing layer is of wavelength scale.
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12. The identity card of claim 1, wherein the first light influencing layer and the second light influencing layer jointly form an optical lens.
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13. The identity card of claim 1, wherein the card body comprises laminated transparent layers, wherein the first light influencing layer is arranged between successive two laminated transparent layers of the card body, and wherein the second light influencing layer is arranged between successive two laminated transparent layers of the card body.
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14. A method for manufacturing an identity card, the method comprising:
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providing a plurality of transparent laminate layers; arranging a physical unclonable function within the plurality of transparent laminate layers, wherein the physical unclonable function comprises; a first light influencing layer, a second light influencing layer, a light source for emitting light towards the first light influencing layer and the second light influencing layer, and an optical sensor for sensing light from the first light influencing layer and the second light influencing layer in response to the emitted light; and laminating the plurality of transparent laminate layers and the physical unclonable function to obtain the identity card.
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Specification