A method of vehicle terminal key distribution management based on white box encryption technology

Abstract

The invention discloses a vehicle-mounted terminal key distribution management method based on white-box encryption technology, which comprises the following steps: the step of vehicle-mounted terminal key distribution; the steps of vehicle-mounted terminal root key generation and data encryption and decryption. Through the comprehensive protection and safety management of the distribution, storage, use and update process of the vehicle terminal key, the information security problem in the entire key life cycle process can be effectively solved, and the key leakage can be avoided; and the present invention can be used without In the case of using an encryption chip, the storage and use of the key on the vehicle terminal device are guaranteed to be safe. Therefore, while improving security, it can also effectively reduce the BOM cost of the vehicle terminal, and reduce the user's use and maintenance costs.

Description

technical field [0001] The invention relates to the field of vehicle terminal information security, in particular to a vehicle terminal key distribution management method based on white-box encryption technology. Background technique [0002] With the high integration of vehicles and informatization, a car is no longer a separate island of information. In order to bring more vehicle use services and travel services to users, cars have basically become a trend of networking. While ensuring secure communication, more and more attention has been paid to how to ensure the safe distribution, storage and use of the core key in the encryption algorithm. [0003] The current key management methods for terminal devices mainly include the following two methods: [0004] Disk direct access: Simply use the disk to save the key distributed at the factory, read the key directly from the disk for encryption and decryption, and regularly update the key online. [0005] Encrypted chip acce...

AI Technical Summary

Problems solved by technology

[0006] However, the method of directly accessing the key from the disk will make the key easy to be obtained illegally, and there is a big security risk

However, the method of accessing the key with an encrypted chip will lead to the problem that the key cannot be updated regularly online, and will increase the BOM cost of the terminal

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