Optical PUF system based on chaotic signals

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

Active Publication Date: 2019-08-23
TAIYUAN UNIV OF TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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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 signals
  • Optical PUF system based on chaotic signals

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Embodiment Construction

[0021] Specific embodiments of the present invention will be described in detail below in conjunction with 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 an optical signal to the post-processing module. The processing module 3 and the post-processing module 3 perform photoelectric conversion, convert it into a binary sequence, and finally output the 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, etc. to disturb the semiconductor laser to generate a chaotic signal (the example of the chaotic s...

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Abstract

The invention relates to the field of semiconductor optoelectronics, in particular to an optical PUF (physical unclonable function) system based on chaotic signals, which is applied to the fields of safety verification, key generation and the like. By using the initial value sensitivity and the high bandwidth characteristic of the chaotic signal, the problems of low safety and small information amount of the current optical physical unclonable function system are solved. A silicon waveguide structure is adopted, integration with other semiconductor functional devices is facilitated, and therefore a safety verification system with a compact structure and a random number generator are expected to be achieved.

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 becoming 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 identity authentication and other fields. [0003] At present, there are two main implementation methods of PUF, that is, the electrical and 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...

Claims

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Application Information

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Patent Type & Authority Applications(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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