Vehicle-mounted terminal file encryption upgrading method and device, terminal equipment and storage medium
A vehicle terminal and file encryption technology, applied in computer security devices, software deployment, instruments, etc., can solve problems such as hidden dangers, tampering, and easy leakage of secret keys, and achieve the effect of preventing leakage, leakage and tampering.
Pending Publication Date: 2022-06-24
XIAMEN YAXON NETWORKS CO LTD
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Problems solved by technology
However, if the corresponding security measures are not taken during the download and update process, there will be a risk of program files being lost or tampered with, which will lead to serious safety hazards in the car and reduce the safety of the car.
[0003] In the current security technology, the advanced standard AES is usually used to encrypt data fragments to ensure the security of program files, but the secret key encrypted by AES is easy to leak and be stolen, and there will be some security risks
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[0040] The present invention will now be further described with reference to the accompanying drawings and specific embodiments.
[0041] like figure 1 As shown, a method for encrypting and upgrading a vehicle terminal file includes the following steps:
[0042] S1. Registration: The vehicle-mounted terminal registers the pre-assigned terminal identifier and chip identifier to the server platform, and the server platform conducts unified management. Only vehicle terminals with terminal identifiers and chip identifiers can authenticate and download the corresponding files.
[0043] S2. Filing: The vehicle terminal uses the encryption chip to generate the corresponding public-private key pair, extracts the public key, and records the public key, the terminal identifier and the chip identifier to the server platform. After the record is passed, the public-private key pair can be used for download and authentication Corresponding encryption and decryption and signature verificat...
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The invention relates to a vehicle-mounted terminal file encryption upgrading method and device, terminal equipment and a storage medium, and the method comprises the following steps: S1, registration: a vehicle-mounted terminal registers a terminal identifier and a chip identifier which are distributed in advance to a server platform, and the server platform carries out unified management; s2, recording: the vehicle-mounted terminal generates a corresponding public and private key pair by using an encryption chip, extracts a public key and records the public key, a terminal identifier and a chip identifier in a server platform; s3, authentication: the vehicle-mounted terminal and the server platform perform mutual authentication through the terminal identifier, the chip identifier and the signature message; s4, downloading: the server platform encrypts the program file by using the secret key which is authenticated and negotiated, and then issues the encrypted program file to the terminal; and S5, confirmation: the vehicle-mounted terminal decrypts the program file by using the secret key obtained through authentication negotiation, then hash solving and signature are carried out on the decrypted program file, and whether the program file passes verification is verified by the server platform.
Description
technical field [0001] The present invention relates to a vehicle-mounted terminal, in particular to a method, a device, a terminal device and a storage medium for encrypting and upgrading a vehicle-mounted terminal file. Background technique [0002] Electronic control unit (Electronic Control Unit, ECU) is the core component of automotive electronic control system, and is widely used in the Internet of Vehicles. The electronic control unit will collect various input signals on the car and store, analyze and process accordingly, and convert the processing results into control signals, thereby realizing the control of the car. In order to meet the needs of users, the electronic control unit needs to download and update various programs. However, if the corresponding security measures are not taken during the download and update process, there will be a risk of program files being lost or tampered with, which will lead to serious safety hazards in the car and reduce the safe...
Claims
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Login to View More IPC IPC(8): G06F8/65G06F21/60G06F21/62G06F21/64
CPCG06F8/65G06F21/602G06F21/6209G06F21/64G06F2221/2107G06F2221/2151
Inventor 郭加平吕伟煌赵国开
Owner XIAMEN YAXON NETWORKS CO LTD