Internet of Things security chip trusted mechanism

Abstract

The invention discloses an Internet of Things security chip trusted mechanism, and relates to the technical field of Internet of Things security. The mechanism comprises the following steps: obtaininga physical unclonable function of a chip, and extracting a plurality of excitation corresponding pairs from the physical unclonable function; extracting a response part of the excitation corresponding pair as a first entropy value, and adding the first entropy value into an entropy pool; the Internet of Things equipment extracting communication protocol information in the communication process asa second entropy value and adding the second entropy value into an entropy pool; combining the first entropy value and the second entropy value in the entropy pool to obtain physical feature information; inputting the physical feature information into a fuzzy extractor, outputting auxiliary data P and a uniform random value R by the fuzzy extractor, and registering an identity by taking the auxiliary data P and the uniform random value R as registration information. The random feature physical fingerprint in the chip production and manufacturing process is used as identity registration information, the block chain is used as an identity generation and registration platform, and the safety is high.

Description

technical field [0001] The invention relates to the technical field of Internet of Things security, and more specifically, it relates to a trusted mechanism of an Internet of Things security chip. Background technique [0002] Uniquely identifying an IoT device is a basic function that can have many application scenarios, such as software authorization (how to ensure that your software can only be used on a specific machine after authorization), software license, device identification, device identification, etc. There are many problems with the current common method: [0003] (1) Network card MAC address [0004] MAC address may be the most commonly used identification method, but now this method is basically unreliable: a computer may have multiple network cards and multiple MAC addresses, such as a typical notebook may have multiple MAC addresses such as wired, wireless, and bluetooth. With the change of different connection methods, the MAC address will change every ti...

AI Technical Summary

Problems solved by technology

Device authentication is the first step in the security of the entire Internet of Things. For legitimate devices, the identity authentication mechanism allows them to access the Internet of Things for data communication and information exchange with other devices. For illegal devices, the identity authentication mechanism restricts their access to the Internet of Things. In order to avoid the hidden dangers brought by it, in summary, using the traditional logo as authentication information is prone to illegal access, and the security is poor

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