Authentication system based on single-photon excitation and optical PUF (Physical Unclonable Function)

An authentication system and single-photon technology, applied in the field of security authentication, can solve the problems of large impact and slow quantum authentication system, and achieve the effect of reducing impact, reducing measurement complexity, and shortening measurement time.

Active Publication Date: 2017-10-17
INST OF ELECTRONICS ENG CHINA ACAD OF ENG PHYSICS
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Problems solved by technology

[0004] In order to overcome the shortcomings of the existing quantum authentication system, which are relatively slow and greatly affected by ambient light, the present invention provides an authentication system based on single photon excitation an

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  • Authentication system based on single-photon excitation and optical PUF (Physical Unclonable Function)

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Embodiment Construction

[0026] Such as figure 1 As shown, the present invention provides an authentication system based on single-photon excitation and optical PUF, which includes two parts: an imaging positioning subsystem and an authentication subsystem.

[0027] Described imaging positioning subsystem comprises: beam expander 3, collimating lens 11, beam splitting prism I, II (i.e. figure 1 5 and 6 in ), used to illuminate the light-emitting diode 12 for the PUF key 8, a 4F imaging system for imaging the PUF key 8, a camera for collecting images of the PUF key 8, and a device for precisely positioning the PUF key 8 The electronically controlled three-dimensional translation platform 9 controls the movement of the electronically controlled three-dimensional translation platform 9 according to the collected images through a positioning program. The 4F imaging system is composed of lens I and lens II, namely figure 1 7, 10 in; wherein, the light-emitting diode 12 is located at the focal point of th...

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Abstract

The invention provides an authentication system based on single-photon excitation and an optical PUF (Physical Unclonable Function). A method for implementing the system comprises the following steps: preparing a single-photon source by using a laser pulse attenuation method; performing high-speed encoding on incident light waves by using a high-speed DMD (Digital Micro-mirror Device); irradiating encoded light onto an optical PUF key constructed by a random medium to generate a speckle response; acquiring a speckle pattern by using an sCMOS (scientific Complementary Metal-Oxide-Semiconductor) camera, an EMCCD (Electron Multiplying Charge-Coupled Device) camera or an EBCCD (Electron-Bombarded Charge Coupled Device) camera; and registering and authenticating the PUF key by using speckle information. In the authentication system, the quantum nonclonability of a single photon and the non-repeatability of a random medium PUF key are utilized, so that the security of an authentication process is ensured physically. Ambient light is filtered by a narrowband bandpass filter, so that the influence of ambient light is lowered. The authentication system has a great application prospect in the field of security.

Description

technical field [0001] The invention relates to an identity authentication system, in particular to an authentication system based on single-photon excitation and optical PUF (Physically Unclonable Function), which belongs to the technical field of security authentication. Background technique [0002] The authentication system based on Physical Unclonable Function (PUF) has very good security and has broad application prospects in the next generation of security authentication technology. The earliest PUF-based authentication system is realized by using optical disordered media. It uses classical The speckle formed by laser irradiation on the disordered medium is used for authentication. The speckle can reflect the internal structural information of the disordered medium. Different disordered media can form completely different speckle patterns, so the speckle can be used as the mark of the disordered medium. Authentication; this optical PUF key composed of random media is ...

Claims

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Application Information

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IPC IPC(8): H04L9/32H04L9/08H04B10/70
CPCH04B10/70H04L9/0852H04L9/3278
Inventor 王丕东陈飞良李沫李倩姚尧张丽君张健
Owner INST OF ELECTRONICS ENG CHINA ACAD OF ENG PHYSICS
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