2025-02-07 02:20 AM
Hello.
If i set the product state to CLOSED (0x72) without TZ-enabled (TZEN: 0xC3),
i can't access the device and the OBK-Keystore from outside.
But if i write a user program, i can read the whole OBK-Keystore at:
FLASH_OBK_BASE_S + 0x0100;
So perhaps it is possible to get access to the device with this information.
Is there a easy way to protect a read access to the OBK-Key, without using the TZ ?