A distributed vehicle electronic system information security protection method
A vehicle-mounted electronics and system information technology, applied in the field of vehicle-mounted system information security, can solve difficult vehicle-mounted system applications and deployments, inability to apply vehicle-mounted systems, and inability to simultaneously adapt to low-resource overhead, high-security and high-real-time requirements of vehicle-mounted networks, etc. problems, to achieve the effect of comprehensive security protection capabilities and confidentiality protection
A vehicle-mounted electronics and system information technology, applied in the field of vehicle-mounted system information security, can solve difficult vehicle-mounted system applications and deployments, inability to apply vehicle-mounted systems, and inability to simultaneously adapt to low-resource overhead, high-security and high-real-time requirements of vehicle-mounted networks, etc. problems, to achieve the effect of comprehensive security protection capabilities and confidentiality protection
CN109033862BActive Publication Date: 2019-04-30JILIN UNIV
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[0037] Include the following steps:
[0038] The first stage: system initialization, in this stage, the electronic control unit inside the system loads the long-term key through the secure channel;
[0039] The second stage: session key generation and distribution. In this stage, the gateway electronic control unit deduces and distributes the session key with each other electronic control unit in a fixed order;
[0040] The third stage: data frame encryption and authentication. In this stage, the electronic control unit performs encryption, decryption and authentication of data frames.
[0041] The method of system initialization in the first stage of the present invention is as follows, gateway electronic control unit ECU GW The preset long-term Diffie-Hellman (DH) public-private key pair (A GW ,a GW ) and all other electronic control units ECU i DH public key A i loaded into a secure storage area while the ECU i The preset long-term DH public-private key pair (A i ,a ...
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The invention relates to a distributed vehicle-mounted electronic system information security protection method, belonging to the technical field of vehicle-mounted system information security. The method comprises: initializing the system, loading the preset long-term key by the electronic control unit in the system through the secure channel, and loading the preset long-term key by the electronic control unit in the system; performing session key generation and distribution, based on the loaded long-term key and the generated temporary key, the gateway electronic control unit performing derivation and distribution of the session key with each other electronic control unit in a fixed order; the gateway electronic control unit performing derivation and distribution of the session key witheach other electronic control unit; each electronic control unit performing encryption and authentication of data frames after session key distribution is completed. The invention adopts symmetrical encryption algorithm and hash function with low calculation and communication cost in each stage, and distributes more tasks to the gateway with higher calculation performance in the vehicle-mounted system, which can simultaneously satisfy the requirements of the vehicle-mounted system for the safety and real-time of the internal signal transmission, and is easy to be applied and deployed in practice.
Description
technical field [0001] The invention relates to the technical field of vehicle system information security, in particular to a method for secure communication between electronic control units inside a distributed vehicle electronic system. Background technique [0002] Distributed vehicle electronic system is a dedicated system with one or more real-time response and control functions inside the vehicle. These functions are usually completed by multiple electronic control units connected to the vehicle network. The various distributed on-board electronic systems contained in the car provide the driver with functions such as adaptive cruise, collision warning, brake / steering by wire, automatic transmission, body stability control, air conditioning and seat control, intelligent navigation, and audio and video It has considerable economic value, far-reaching social impact and important environmental protection significance. According to statistics, at present, the value ratio ...
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Patent Timeline
30 Apr 2019
Publication
CN109033862B
- IPC
- G06F21/60; H04L9/08; H04L9/32
- CPC
- G06F21/602; G06F21/606; H04L9/0825; H04L9/0844; H04L9/3242
- Inventors
- 赵睿; 刘通