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Physical non-cloning key for quantum secure authentication and quantum key distribution

A quantum key distribution and security authentication technology, applied in the field of physical unclonable keys, can solve the problems of strong adsorption, unstable chemical properties, large specific surface area, etc., achieve high stability and reliability, not easy to interfere and destroy, Effects of Long Equivalent Keys

Inactive Publication Date: 2016-05-25
INST OF ELECTRONICS ENG CHINA ACAD OF ENG PHYSICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

On the one hand, the microstructure of PUF composed of a single material is not complex enough, resulting in the complexity of the interaction with excitation light and the amount of information contained; on the other hand, this loose structure leads to extremely poor mechanical properties of PUF, microscopic Unstable structure, vulnerable to damage, poor adhesion to the substrate, and its large specific surface area, strong adsorption to impurities such as water vapor and fine dust in the environment, unstable chemical properties, and poor practicability

Method used

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  • Physical non-cloning key for quantum secure authentication and quantum key distribution
  • Physical non-cloning key for quantum secure authentication and quantum key distribution
  • Physical non-cloning key for quantum secure authentication and quantum key distribution

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Such as figure 2 As shown, a physical unclonable key for the near-ultraviolet band, using a combination of three kinds of disordered micro-nano particles with a UV transparent substrate, a UV transparent medium, and a refractive index higher and lower than the UV transparent medium.

[0031] This physical unclonable key consists of the following:

[0032] With 1mm thick quartz glass as the substrate, 5μm thick PMMA (refractive index 1.51 at 350nm) as the transparent medium, the particle size is between 35nm and 3500nm, and the shape is spherical, ellipsoidal, cylindrical, cubic, polygonal Magnesium fluoride (refractive index 1.387 at 350nm), aluminum oxide (refractive index 1.8 at 350nm) and aluminum nitride (refractive index 2.2 at 350nm) are used as disordered micro-nano particles. Its structural diagram is attached image 3 shown.

[0033] The physical unclonable key preparation method of this structure is as follows:

[0034] Magnesium fluoride, aluminum oxide ...

Embodiment 2

[0036] Such as image 3 As shown, a physical unclonable key for the visible band, using a visible transparent substrate, a low-refractive-index transparent medium, and two kinds of high-refractive-index disordered micro-nano particles.

[0037] This physical unclonable key consists of the following:

[0038] With a 1mm thick sapphire sheet (refractive index 1.76 at 633nm) as the substrate, a 30μm thick silicon dioxide film (refractive index 1.46 at 633nm) as the transparent medium, the particle size is between 60nm and 6000nm, and the shape is spherical and elliptical. Spherical, cubic, and polygonal zinc oxide (refractive index 1.99 at 633nm) and titanium dioxide (refractive index 2.6 at 633nm) are used as disordered micro-nano particles. Its structural diagram is attached Figure 4 shown.

[0039] The physical unclonable key preparation method of this structure is as follows:

[0040] Mix the dispersion liquid of zinc oxide and titanium dioxide micro-nano particles, spra...

Embodiment 3

[0042] Such as Figure 4 As shown, a physical unclonable key for the infrared band, using an infrared transparent substrate, a high-refractive-index transparent medium, and two kinds of low-refractive-index disordered micro-nano particles.

[0043] This physical unclonable key consists of the following:

[0044] Based on a 1mm thick silicon wafer (refractive index 3.42 at 4μm, melting point 1410°C), 50μm thick germanium film (refractive index 4.02 at 4μm, melting point 938°C) as a transparent medium, with a particle size between 0.4μm and 10μm Among them, zinc sulfide (refractive index 2.25 at 4 μm, melting point 1700 °C) and calcium fluoride (refractive index 1.35 at 4 μm, melting point 1400 °C) in spherical, ellipsoidal, cubic, and polygonal shapes are used as disordered micro-nano particles.

[0045] The physical unclonable key preparation method of this structure is as follows:

[0046] Zinc sulfide and calcium fluoride micro-nano particles are mixed into molten germaniu...

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Abstract

The invention discloses a physical non-cloning key for quantum secure authentication and quantum key distribution. The physical non-cloning key is composed of a substrate, a transparent dielectric film grown on the substrate, disordered micro nanoparticles embedded in the transparent dielectric film; and micro nanoparticles which are made of various kinds of materials, and are in various kinds of sizes and various kinds of shapes are mixed to form the disordered micro nanoparticles embedded in the transparent dielectric film. Compared with a physical non-cloning key formed by micro nanoparticles made of a single material, the physical non-cloning key of the invention has a more complicated microstructure and a spatially unevenly-distributed refractive index, can interact more complexly with incident light and generate a large authentication information speckle, and has higher security; compared with a physical non-cloning key which is of a porous structure and is directly formed by micro nanoparticles, the physical non-cloning key of the invention has higher stability and reliability, is insusceptible to interference and destruction of external environment and suitable for various kinds of substrates, and can be widely applied to quantum authentication and quantum key distribution.

Description

technical field [0001] The invention relates to the fields of quantum authentication, identity authentication, quantum key distribution and anti-counterfeiting, and specifically refers to a physical unclonable key used for quantum security authentication and quantum key distribution. technical background [0002] With the rapid development of modern social economy and technology, especially with the advent of the era of big data, smart chips such as magnetic stripe cards, radio frequency authentication cards (IC cards) have become more and more common in daily life and have been widely used It is used in many important fields such as my country's second-generation resident ID cards, bank cards, access control cards, and traffic cards, and has become a key technology for the development of the Internet of Things. However, this kind of IC card based on the principle of classical electromagnetic induction has potential safety hazards, and is vulnerable to security threats such a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L9/32H04L9/08
CPCH04L9/3278H04L9/0852H04L9/0866
Inventor 陈飞良李沫李倩龙衡姚尧孙鹏高铭代刚张健
Owner INST OF ELECTRONICS ENG CHINA ACAD OF ENG PHYSICS
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