High-steady-state PUF using semiconductor gas sensors

Abstract

The invention discloses a high-steady-state PUF using semiconductor gas sensors, which comprises an external excitation source, eight semiconductor gas sensors, a resistance value acquisition module and a data processing module, and is characterized in that the external excitation source is used for creating a gas environment for the eight semiconductor gas sensors, so that the eight semiconductor gas sensors respectively generate an output resistance value; the resistance value acquisition module is used for acquiring output resistance values of the eight semiconductor gas-sensitive sensors and transmitting the output resistance values to the data processing module, and the data processing module takes every three of the eight semiconductor gas-sensitive sensors as a sensor cluster, takes every two of the C38 sensor clusters as a comparison group; selects one comparison group from C256 different comparison groups according to a random sequence to carry out resistance comparison, and generates 128-bit binary data as 128-bit output response output of the high-steady-state PUF; and the high-steady-state PUF has the advantages of being low in cost and high in safety.

Description

technical field [0001] The present invention relates to a kind of, especially relate to a kind of high steady-state PUF using semiconductor gas sensor. Background technique [0002] In recent years, the advancement of gas sensor technology has led to the expansion of the coverage of the Internet of Things. IoT devices have been integrated with various types of gas sensors and are widely used in the HVAC market, transportation, and national defense security. As one of the data entrances of the Internet of Things system, the gas sensor connects the digital world and the physical world. Sensing technology, with sensors as the core, is not only the nerve endings of the Internet of Things, but also a necessary way and means for IoT systems to obtain data information. How to ensure the real terminal security from data generator to data receiver in IoT devices has become a research hotspot. [0003] Most of the sensor-level authentication methods proposed at present use the trust...

AI Technical Summary

Problems solved by technology

Such solutions are expensive, and the security protection and communication of keys used for encryption and device authentication are vulnerable to intrusive or semi-intrusive attacks, and the security is low

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