A Trusted Mechanism for IoT Security Chips

Abstract

The invention discloses a trustworthy mechanism for an Internet of Things security chip, and relates to the technical field of Internet of Things security. The response part of the pair is taken as the first entropy value and added to the entropy pool; the IoT device extracts the communication protocol information of the communication process as the second entropy value and adds it to the entropy pool; the first entropy value and the second entropy value in the entropy pool are The physical feature information is obtained by combining the values; the physical feature information is input into the fuzzy extractor, the fuzzy extractor outputs the auxiliary data P and the uniform random value R, and the auxiliary data P and the uniform random value R are used as the registration information to register the identity; The random feature "physical fingerprint" in the production process is used as identity registration information, and the blockchain is used as a platform for identity generation and registration, with high security.

Description

technical field [0001] The invention relates to the technical field of Internet of Things security, and more particularly, to a trustworthy mechanism of a security chip of the Internet of Things. Background technique [0002] Uniquely identifying an IoT device is a basic function and 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 commonly used methods: [0003] (1) MAC address of the network card [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. For example, a typical notebook may have multiple MAC addresses such as wired, wireless, Bluetooth, etc. With the change of different connection methods, the MAC address w...

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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