2022-08-18 02:20 AM
As per my understanding Secure Mode of STM32H7 as follows:
RESET => Enter System Boot loader => Program OB register content => If (SECURITY) => RSS Boot => Configure Secure User Memory => Jump to Secure User memory on User Flash.
I have two open questions here
Who is checking this access ?? who will control this access ? how it is implemented ??
2022-08-18 05:51 PM
> Who is checking this access ?? how it is implemented ??
The hardware.
2022-08-19 05:23 AM
Thanks for reply. But How it is implemented at HW level ??
2022-08-21 02:10 PM
Hmm... They put a tiny gnome in every chip. These little guys do all the mаgi�?k.
2022-08-21 04:40 PM
I'm sure you have access to all the same public domain data ARM and ST have released on their respective cores and security methods.
Perhaps understand the basic expectations and processes there, and then ask specific questions about how bits of the blocked diagrammed pieces work.
There are perhaps white papers, app notes, and seminar slides out there too.
Unfamiliar with asymmetric encryption methods, hashes, elliptic curves, etc there's a lot of material on that stuff too.
Generally you don't want to expect senior engineers to read technical documentation to you or for you.
2022-08-22 11:19 PM
@Community member Thanks for details.
I thought people here in the community, may know already those details, that's why i asked.
I can do my research on whatever i am looking.
Anyway thanks for pointers :)