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Miniature quantum authentication system

An authentication system and quantum technology, applied in the field of security authentication, can solve the problems of reducing the system cost, being unable to be practical, and the volume of the quantum authentication system being large, and achieving the effect of reducing the influence of ambient light, strong practicability, and reducing the volume

Active Publication Date: 2017-09-22
INST OF ELECTRONICS ENG CHINA ACAD OF ENG PHYSICS
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  • Summary
  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

[0005] In order to overcome the shortcomings of the quantum authentication system being bulky and impracticable, the present invention provides a miniaturized quantum authentication system, which can use commercially standardized device products, and can also reduce the cost of the system

Method used

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Embodiment Construction

[0039] Such as Figure 1-4 As shown, a miniaturized quantum authentication system folds the quantum authentication optical path in the three-dimensional direction and adopts a cage optical path system to reduce the volume of the optical path; the whole is divided into the zeroth layer, the first layer, and the second layer from top to bottom. layer, the third layer, a total of four layers, of which:

[0040] The zeroth layer is used to place the PUF key 23;

[0041] The first layer is used to place the optical path that generates the single-photon beam and modulates the wavefront of the single-photon beam, and the optical path that illuminates the PUF key 23;

[0042]The second layer is used to place the optical path for imaging the PUF key 23 and the demodulation optical path for authentication;

[0043] The third layer is used to place the power source 19 of the laser and the control circuit of the transmission type spatial light modulator 14 .

[0044] The zeroth layer i...

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Abstract

The invention provides a miniature quantum authentication system. The system prepares a single photon source by using a laser pulse attenuation method, encodes incident light waves by using a high-speed space light modulator, and irradiates the encoded light onto an optical PUF key composed of random media to generate speckle response, and processes the speckle by using the space light modulator to accomplish registration and authentication processes of the PUF key. According to the miniature quantum authentication system provided by the invention, the light path is folded on a three-dimensional direction, the volume of the whole authentication system is reduced by using a caged light path system, and commercialized equipment is adopted, so that the manufacturing cost is very low.

Description

technical field [0001] The invention relates to an identity authentication system, mainly designs a miniaturized quantum authentication system, and belongs to the technical field of security authentication. Background technique [0002] Quantum authentication is a new security authentication technology proposed in recent years. It uses the physical unclonable function (Physical Unclonable Function, PUF) entity as the key, and uses the stimulus-response pair of the quantum state as the password. It is double guaranteed by the quantum unclonable theorem and the physical unclonable function, which can ensure that the identity information is not identifiable from the physical principle. Being cloned and falsely used, it has "absolute" security. Even quantum computers cannot crack it. The security authentication system based on physically unclonable function (PUF) has excellent application prospects and is expected to have a revolutionary impact on the fields of identity authen...

Claims

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Application Information

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IPC IPC(8): H04L9/32H04B10/70H04L9/08
CPCH04L9/3278H04L9/0852H04B10/70
Inventor 李沫王丕东陈飞良李倩姚尧张丽君张健
Owner INST OF ELECTRONICS ENG CHINA ACAD OF ENG PHYSICS
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