On-line injection method for initial password data of vehicle equipment

Abstract

The invention discloses an on-line injection method for initial password data of vehicle equipment, and the method comprises the following steps: S1, enabling an external system to randomly generate asecret ASEC for an internal system, and importing the secret ASEC into the internal system when the internal system is used for the first time; s2, generating a serial number SEQ by the internal system according to a vehicle equipment number DID, and calculating by adopting an abstract algorithm to obtain a check code MAC; s3, enabling the internal system to splice the vehicle equipment number DID, the serial number SEQ and the check code MAC to serve as an equipment registration authentication code DRAC, and import the authentication code DRAC into the vehicle equipment; s4, enabling the vehicle equipment to generate a signature key pair and an encryption key pair; s5, enabling the vehicle equipment to perform signature calculation through the signature private key SPRK, the encryption public key CPUK and the authentication code DRAC to obtain a signature value SIG; and S6, enabling the vehicle equipment to send a registration application to an external system, wherein the registration application comprises an authentication code DRAC, a signature public key SPUK, an encryption public key CPUK and a signature value SIG. According to the invention, the data security and reliability of the vehicle-mounted equipment are ensured.

Description

technical field [0001] The invention relates to the technical field of in-vehicle equipment, in particular to an online injection method for initial password data of in-vehicle equipment. Background technique [0002] In the Internet of Vehicles, the car and machine equipment will be pre-installed with some password data before use to ensure the security of its own data. However, most of the existing in-vehicle equipment pre-installed password data before leaving the factory is generated by the internal system and imported into the in-vehicle equipment, and then communicates with the external system in an online manner to keep the data in the two systems synchronized to ensure that the in-vehicle The machine device is available in the external system. When using this method to pre-install password data, it is necessary to ensure the timeliness of the communication between the internal system and the external system. Once the internal system and the external system cannot co...

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Problems solved by technology

[0008] The purpose of the present invention is to solve the existing car-machine equipment. When the internal system and the external system cannot communicate normally due to network or other reasons, the car-machine equipment cannot inject initial data, or the car-machine equipment that has normally injected initial data , it cannot be used normally before the system password data is synchronized, and it is necessary to increase the reconnection and retransmission mechanism between the internal and external systems, which increases the complexity of the system, increases the probability of system error and the difficulty of management, due to the lack of on-board When the device is authenticated, the password data may be injected into multiple car-machine devices due to intentional or misoperation by the operator, so that multiple machines have the same key, resulting in the risk of car-machine device data leakage

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