Identity information determination method and device, electronic equipment and storage medium

Abstract

The embodiment of the invention discloses an identity information determination method and device, electronic equipment and a storage medium, and the method comprises the steps: obtaining a to-be-recognized signal which is transmitted by a to-be-recognized node, determining a to-be-recognized identifier corresponding to the to-be-recognized signal, and determining a matching parameter of the to-be-recognized identifier and each target identifier in a target identifier set, the target identification set comprises the inherent radio frequency characteristics of each target sending node in the target sending node set based on different process errors, and determining the identity information of the node to be identified according to the matching parameter set. Based on the embodiment of the invention, the identity authentication is carried out through the sending node based on the inherent radio frequency characteristics of different process errors, so that the dependence on a key can be reduced, the secure communication between equipment can be enhanced, the man-in-the-middle attack of a hacker can be reduced, and the accuracy of determining the signal source can be improved.

Description

technical field [0001] The present invention relates to the technical field of data communication, in particular to a method, device, electronic equipment and storage medium for determining identity information. Background technique [0002] Controller Area Network (CAN, Controller Area Network) is a standard bus transmission protocol for automotive computer control systems and embedded industrial control area networks. The upgraded controller area network (CAN FD, CAN with Flexible Data rate) can not only support variable transmission rate, the maximum transmission rate is upgraded from 1Mbit / s to 5Mbit / s, but also can support longer data transmission length, the maximum data transmission length is changed from 8bytes is upgraded to 64bytes. [0003] At the beginning of the design of the CAN bus transmission protocol, the security of information was not considered. It mainly uses plaintext transmission, message broadcast transmission and network segment transmission, which...

AI Technical Summary

Problems solved by technology

However, in the existing technologies that rely on keys for security authentication, not only do the keys need to be preset inside the device before the factory goes offline, resulting in a huge workload, but also a built-in security chip is required to store the keys, and the key It is difficult to update the key, and a complete key management system is required to manage the key life cycle, which increases the manufacturing cost and management cost

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