Terminal device and method processing of data for terminal device

A method of processing data for a terminal device, comprising:

• detecting whether a native system of the terminal device comprises components for adapting a public protocol of a digital vehicle key;
• and
• communicating with a target communication party using the public protocol in case of absence of at least one of the components in the native system, wherein the target communication party is a participant of the public protocol;
• establishing a secure channel with a vehicle using a digital key framework in response to initiating a key activating process using a communication device;
• obtaining a vehicle public key certificate using the secure channel;
• verifying the vehicle public key certificate using a vehicle server CA (certificate authority) certificate using at least one Application Programming Interface (API) of a key manager of the communication device, and saving the vehicle public key certificate after successful verification;
• generating a digital-vehicle-key public-private key pair using the key manager, the digital-vehicle-key public-private key pair comprising a digital-vehicle-key public key and a digital-vehicle-key private key;
• signing the digital-vehicle-key public key using a key management element certificate, to generate a digital-vehicle-key public key certificate, the key management element certificate comprising a terminal device server CA signature;
• and
• transmitting the terminal device server CA certificate, the key management element certificate, and the digital-vehicle-key public key certificate to the vehicle, to enable the vehicle to sequentially verify the terminal device server CA certificate, the key management element certificate, and the digital-vehicle-key public key certificate, and saving the digital-vehicle-key public key after successful verification.

A non-transitory computer-readable storage medium having instructions stored thereon, wherein, when the instructions are executed by a processor of a terminal device, a method of processing data is implemented, and the method comprises:

• detecting whether a native system of the terminal device comprises components for adapting a public protocol of a digital vehicle key;
• and
• communicating with a target communication party using the public protocol in case of absence of at least one of the components in the native system, wherein the target communication party is a participant of the public protocol;
• establishing a secure channel with a vehicle using at least one Application Programming Interface (API) of a digital key framework in response to initiating a key activating process through a communication device;
• obtaining a vehicle public key certificate using the secure channel;
• verifying the vehicle public key certificate using a vehicle server CA (certificate authority) certificate through at least one API of a key manager of the communication device, and saving the vehicle public key certificate after successful verification;
• generating a digital-vehicle-key public-private key pair through the key manager, wherein the digital-vehicle-key public-private key pair comprises a digital-vehicle-key public key and a digital-vehicle-key private key;
• signing the digital-vehicle-key public key using a key management element certificate, to generate a digital-vehicle-key public key certificate, wherein the key management element certificate comprises a terminal device server CA signature;
• and
• transmitting the terminal device server CA certificate, the key management element certificate, and the digital-vehicle-key public key certificate to the vehicle, to enable the vehicle sequentially verifies the terminal device server CA certificate, the key management element certificate, and the digital-vehicle-key public key certificate, and saving the digital-vehicle-key public key in a case of successful verification.