Networked automobile network node identity authentication method and device and readable storage medium

The invention discloses a networked automobile network node identity authentication method. The method comprises the steps that a first node sends an authentication request carrying identification information of the first node to a second node; the second node retrieves whether the identification information exists in a database of the second node; if so, the second node generates a challenge code, encrypts the challenge code by adopting an encryption strategy and sends the encrypted challenge code to the first node; the first node processes the encrypted challenge code, generates a response message and sends the response message to the second node; the second node judges whether the first node is real and reliable according to the response message; wherein the first node is one of a gateway node and a common node, and the second node is the other one of the gateway node and the common node. The gateway node and the common node can confirm whether the opposite side is a real node whichthe opposite side wants