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Authentication system based on galvanometer scanning imaging

An authentication system and galvanometer scanning technology, applied in the field of security authentication, can solve the problems of different optical paths for registration and authentication, and achieve the effects of reducing impact, shortening acquisition time, and convenient use

Inactive Publication Date: 2018-09-14
INST OF ELECTRONICS ENG CHINA ACAD OF ENG PHYSICS
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  • Abstract
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  • Application Information

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Problems solved by technology

[0003] In order to overcome the problem that the optical path of the existing quantum authentication system requires different registration and authentication optical paths, the present invention designs an authentication system based on galvanometer scanning imaging. The authentication system uses high-dimensional quantum light to irradiate the optical PUF and directly collects the speckle light intensity for authentication The method and system of the present invention only need one optical path to realize the two functions of registration and authentication

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  • Authentication system based on galvanometer scanning imaging

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Embodiment Construction

[0020] Such as figure 1 As shown, an authentication system based on galvanometer scanning imaging provided by the present invention includes a pulsed laser light source 1, an attenuation sheet group 2, a beam expander 3, an optical shutter 4, a 1:1 beam splitting prism-5, and a spatial light modulation Device 6, light barrier or light trap 7 for absorbing light, 1:1 dichroic prism 2 8, optical PUF key 9, two-dimensional scanning vibrating mirror 10, narrowband bandpass filter 11, photon counter 12, control and Data collection module 13, computer 14.

[0021] The authentication system includes two implementation processes of registration and authentication. When registering, the PUF key is first identified. The process is as follows: the optical pulse emitted by the pulsed laser light source 1 is attenuated after passing through the attenuating film group 2, and a weakly coherent light beam is obtained; The weakly coherent light is expanded after passing through the beam expan...

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Abstract

The invention provides an authentication system based on galvanometer scanning imaging. The system irradiates an optical PUF key composed of random media by using high-dimensional quantum light to generate a speckle response, collects a generated speckle pattern by using a galvanometer scanning imaging method, and registers and authenticates the PUF key by using the speckle information. The authentication system provided by the invention physically guarantees the security of the authentication process by using the quantum non-clonality of the quantum light and the non-reproducibility of the random media of he PUF key, and performs fast imaging on the quantum light speckle by using the galvanometer scanning imaging method to shorten the registration and certification time, and can use the same set of optical paths to achieve the registration and authentication, thus enhancing the practicability of the system and having an excellent application prospect in the security field.

Description

technical field [0001] The invention relates to an identity authentication system, in particular to an authentication system based on vibrating mirror scanning imaging, and 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 security authentication technology. Boris Skoric et al. proposed QR-PUF on the basis of PUF, which uses quantum states to read PUF. Due to the unclonability of quantum states, using QR-PUF for authentication will have higher security than traditional optical PUF keys. sex. Based on the work of Boris Skoric, S. A. Goorden et al. designed an authentication system based on speckle wavefront detection. This system needs to use two completely different optical path systems during registration and authentication, which is relatively complicated and limits its practical appl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L9/32H04B10/70H04B10/85
CPCH04B10/70H04B10/85H04L9/3278
Inventor 王丕东李沫陈飞良姚尧张丽君李倩黄锋李栋张健
Owner INST OF ELECTRONICS ENG CHINA ACAD OF ENG PHYSICS