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Optical puf system based on chaotic signal

A chaotic signal and chaotic light technology, which is applied in the direction of secure communication, transmission system, and digital transmission system through chaotic signals, can solve the problem of small amount of information, achieve low cost, improve security, and achieve high-dimensional effects

Active Publication Date: 2022-05-24
TAIYUAN UNIV OF TECH
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

Although this structure has higher security and complexity than electronic PUF, the amount of information is still relatively small, only 0.022Tbit / mm3

Method used

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  • Optical puf system based on chaotic signal
  • Optical puf system based on chaotic signal

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Embodiment Construction

[0021] The specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0022] An optical PUF system based on chaotic signals, such as figure 1 As shown, it includes a chaotic signal generation part 1, an optical PUF part 2, and a post-processing module 3. The chaotic optical signal generated by the chaotic signal generation part 1 after receiving the PUF excitation 4 is input to the optical PUF part 2, and the optical PUF part 2 outputs the optical signal to the rear The processing module 3, after the post-processing module 3 performs photoelectric conversion, converts it into a binary sequence, and finally outputs a binary key, that is, the PUF response 5.

[0023] Among them, the chaotic signal generation part includes but is not limited to single feedback, optical injection, photoelectric feedback and other methods to perturb the semiconductor laser to generate chaotic signals (an example of the chaotic sign...

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Abstract

The invention relates to the field of semiconductor optoelectronics, in particular to an optical PUF system based on chaotic signals, which is used in fields such as security verification and key generation. The initial value sensitivity and high bandwidth characteristics of chaotic signals are used to solve the problems of low security and small amount of information in current optical physics unclonable function systems. The use of a silicon waveguide structure is conducive to integration with other semiconductor functional devices, which is expected to realize a compact security verification system and random number generator.

Description

technical field [0001] The invention relates to the field of semiconductor optoelectronics, in particular to an optical PUF system based on chaotic signals. Background technique [0002] With the rise of Internet of Things technology, the application prospect of Physical Unclonable Function (PUF) is increasingly prominent. PUF has uniqueness, unclonability, unpredictability and robustness. These characteristics make PUF widely used in true random number generation, high-speed encryption key generation and authentication. [0003] At present, there are two main implementations of PUF, that is, the electro-physical unclonable function proposed by using the randomness of the integrated circuit manufacturing process error and the optical implementation method proposed by using the complexity of optical diffraction. Compared with electrical PUF, optical PUF is more secure, and the faster transmission speed of photons makes it more suitable for application in the field of informa...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L9/32H04L9/08H04L9/00
CPCH04L9/3278H04L9/0866H04L9/001
Inventor 乔丽君徐浩张明江张建忠王涛柴萌萌杨强
Owner TAIYUAN UNIV OF TECH
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