Vehicle-mounted remote control system and method for defending same carrier attack
A remote control system and the technology of the same carrier, which is applied in the vehicle remote control system and the field of defense against the same carrier attack, can solve the problems of relay attacks by thieves, stolen vehicles, relay attacks, etc., and achieve the effect of defending against the same carrier attack and ensuring the safety of use
Active Publication Date: 2021-08-03
DONGFENG COMML VEHICLE CO LTD
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Problems solved by technology
[0003] Although vehicles equipped with RKE systems bring convenience to users, they are also easy to become the target of "relay attacks" by thieves
At present, the RKE key encoding is simple, and the transmission data information only includes key features. Vehicles equipped with such RKE keys are extremely vulnerable to "relay attacks". Thieves use portable relay stations to approach the target vehicle. Once the owner uses the RKE key to remotely unlock the vehicle, The portable relay station intercepts the wireless high-frequency signal. After the owner is away from the vehicle, the relay station uses the same power to transmit the copied wireless high-frequency signal to unlock the target vehicle, achieve the purpose of stealing the vehicle, and greatly reduce the safety of the vehicle.
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[0048] The embodiment of the present invention provides a vehicle-mounted remote control system and a method for defending against the same carrier attack. Through the design of unique data frame coding information, if and only if the rolling code and key ID in the data frame coding information pass the verification, The execution of the remote control command is carried out, effectively defending against the same carrier attack, and ensuring the safe use of the vehicle and RKE key.
[0049] In order to make the purposes, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments It is a part of the embodiments of this application, but not all of them. Based on the embodiments in the present application, all other em...
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The invention discloses a vehicle-mounted remote control system and a method for defending same carrier attack, and relates to the technical field of vehicle-mounted remote control access control systems, wherein the system comprises an RKE key, a receiving antenna, a receiver, an MCU and an actuator; the RKE key is used for transmitting a high-frequency signal, and the high-frequency signal comprises data frame coding information; the receiving antenna is used for receiving the high-frequency signal transmitted by the RKE key and transmitting the received high-frequency signal to the receiver; the receiver is used for receiving the high-frequency signal transmitted by the receiving antenna, filtering the high-frequency signal, obtaining a filtered high-frequency signal and sending the filtered high-frequency signal to the MCU; and the MCU is used for decrypting and verifying the data frame coding information in the high-frequency signal, realizing a key self-learning function and obtaining a corresponding remote control instruction based on key information corresponding to a key value of the data frame coding information in the high-frequency signal. According to the invention, the same carrier attack can be effectively defended, and the use safety of the vehicle and the RKE key is ensured.
Description
technical field [0001] The invention relates to the technical field of vehicle-mounted remote control access control systems, in particular to a vehicle-mounted remote control system and a method for defending against same-carrier attacks. Background technique [0002] RKE (Remote Keyless Entry, vehicle remote control system), also known as remote control door switch system, remote control access key system, mainly consists of vehicle communication and control system, receiver and transmitter carried by the user, that is, wireless remote control door key. The RKE system allows the user to use the buttons on the remote control key to control the unlocking, locking, raising and lowering of the windows or other control functions. When the user enters the receiving range of the vehicle with the RKE key, the key button will emit a wireless signal, and the vehicle will unlock the door and other operations after the vehicle is authenticated. Equipped with the RKE system on the veh...
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IPC IPC(8): G07C9/00
CPCG07C9/00309G07C9/00571G07C9/00896
Inventor 贺兴亮代鹏刘福伟
Owner DONGFENG COMML VEHICLE CO LTD