In accordance with national standards GB17691-2018 and GB / T32960.2-2016, in the Saix Security Strategy, there is a technical feasible security policy to ensure that TBOX performance is safe, such as electrical applicable performance, environmental applicability, reliability performance , Electromagnetic compatibility performance, general requirements, functional requirements and other indicators.
The TBOX terminal is stored, and the transmitted data is encrypted. It is used as an asymmetric algorithm. It is used to use the National SM2 algorithm or the RSA algorithm. Such as writing commands such as the CAN bus device such as ECU, or other attacks over normal data read instructions, detecting 95% of attacks, the false positive rate is less than 1%, and the protection mechanism is found in 10S after the attack begins.
Information security is the national data center, the weight of the environmental ecological supervision department of all over the city, the TBOX installed safety chip, also has a unique identified sequence ID, security level guarantee as "Information Technology Safety Assessment Standard" 5+ or 4 + Level, under the high electrical isolation capability of high reliability, does not allow for the TBOx problem failure or vehicle failure, with reasonable data judgment, status judgment, does not affect the vehicle OBD function, annual inspection, road inspection, etc.
The tamper-proof information filing is a key ring in the data transmission. The speed of the H6GB terminal uses the public key data binding of the encrypted chip ID, the frame number, the encrypted chip, there is a non-matching party issuance Unsuccessful news, equipment that is unsuccessful, and there will be all data will be discarded directly, and the platform will not respond to any message.
Therefore, the safety encryption chip manufacturer puts forward strict requirements, not only has a perfect quality system guarantee, through ISO 9001 and ISO 14001 quality and environmental management system certification, also meets GM / T0008 security level 2 requirements, with government certificate Provide documentation.
Intrusion test defense test:
Testing equipment: speed H6GB-TBOX, 2 antenna (GPS, LTE), constant current source (in the central air supply)
Test connection diagram:
Safety chip test:
Program:
1, Wiring method: MCU and safety chip communicate through 4 line I2C;
2. Algorithm interface: Signature verification in accordance with SM2 algorithm in accordance with national standards;
3, log output: According to the national six standard needs to print the public key, ID, and signature data in the form of visible characters, print the book to the test software to perform comparison verification in the test software, so add a serial visible character print interface. ;
4, waveform contrast: According to the national six standards, the logic analyzer can be used to grab the waveform data on the CAN bus and compare the data printed by the serial port. Confirm that the safety chip is working properly and the signature operation is within the internal operation of the safety chip, by communication in the board I2C The line flying line is completed.
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