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.