protect firmware code in target hardware

bscheuffele — Mon, 13 Jul 2020 09:14:29 GMT

Hi, how could SE050 possibly contribute to a concept to prevent firmware from being hacked during and after a remote update process?

Our question in detail: During firmware remote data transfer the firmware code is protected by TLS. However, finaly the firmware sits as a de-crypted binary in the NAND or NOR Flash. The identified risk is that this NAND or NOR could be sniffed or the memory hardware component could be extracted from the PCB and put in a spy hardware environment.
Thank you ! Best regards, Bernd

Re: protect firmware code in target hardware

Kan_Li — Tue, 14 Jul 2020 04:49:15 GMT

Hi Bernd,

If the binary is plain in the NAND or NOR flash, I think SE050 can help little on such kind of issue, instead a tamper detection device is needed for your case. As I know, some host controllers support tamper detection, for example, Kinetis K81,
Please kindly refer to Arm® Cortex®-M4|Kinetis K81 150 MHz 32-bit MCUs | NXP for details.

Hope that helps,

Have a great day,
Kan

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protect firmware code in target hardware

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