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Physical unclonable function

A technology of components and signals, applied in the field of photoacoustic physical unclonable function and authentication of physical unclonable function, which can solve complex problems

Inactive Publication Date: 2017-04-19
NOKIA TECHNOLOGLES OY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Previous physical unclonable features have been found to be complex to implement, or they have presented security risks, such as providing backdoors to authenticated devices

Method used

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Examples

Experimental program
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Embodiment Construction

[0070] Figure 1a A schematic side view of a system of an example embodiment of the invention is shown. Figure 1aA physically unclonable functional device 100 is shown. The device 100 includes: a first element 102 , a second element 104 , and a third element 106 , 108 . In an example embodiment, the first element comprises a photoacoustic sensor surface, such as a graphene foil, film or sheet, comprising at least one graphene layer. In an example embodiment, the first element (ie graphene sheet) is provided on a support structure. In another example embodiment, the first element comprises a self-supporting sheet. In an example embodiment, the first element further comprises at least one graphene flake or grain, additional material and / or pores. In an example embodiment, the first element comprises: a graphene foil comprising a plurality of graphene layers, a plurality of graphene flakes or grains and / or defects (such as the introduction of additional material) and / or holes ...

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PUM

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Abstract

Apparatus, electronic device, system and method comprising a first element (102) configured to receive a first signal and convert the first signal to a second signal, a second element (104) configured to relay the second signal to a third element (106, 108), the third element (106, 108) being configured to convert the second signal to a third signal and to send the third signal; wherein the first element (102) is configured to convert the first signal to the second signal in such a way that the conversion is dependent on the physio-chemical structure of at least part of the first element (102). In some embodiments the first element comprises a photoacoustic sensor comprising at least one graphene layer, the second element comprises a mechanical wave transmission line, and the third element comprises carbon nanotube antennas.

Description

technical field [0001] This application generally relates to certification. In particular, but not exclusively, this application relates to authentication using physically unclonable functionality. In particular, but not exclusively, this application relates to photoacoustic physical unclonable functions. Background technique [0002] There is an increasing need to be able to authenticate items such as electronic devices, office documents, credit cards, mobile communication devices, and the like. The need for authentication may arise from different interests, such as the detection of counterfeit and copies of items or the control of use. [0003] Depending on the item, various item authentication techniques can be used. One of these technologies is a physically unclonable function (PUF), which is embodied in the physical structure of an item. If a physical stimulus is applied to a physically unclonable function, it responds to that stimulus in an unpredictable and repeat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L9/32G01N21/17H01L29/16H01L51/00H10K99/00
CPCG01N21/1702G01N21/3581G09C1/00H04L2209/12B82Y10/00B82Y15/00H04L9/3278H01L23/573H01L29/1606H04L2209/80
Inventor M·沃蒂莱宁
Owner NOKIA TECHNOLOGLES OY
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