Working of srktool

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Working of srktool

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shashank_r
Contributor I

Hi...
I was learning the Code signing for secure boot. I referred the CST User guide document. In that, I require clarification of 1 step.

I am working on HAB4. I have generated the SRK keys and certificates using the ./hab4_pki_tree.sh script. Now the second part, creating the fuse.bin and table.bin using srktool. I have generated them as well with srktool, the thing I want to know here is,
Q1. what is the hash that is stored in fuse.bin, by that I mean what structure of hashing is followed (is it concatenation, binary tree format - merkle tree). Show me steps so that I can manually create the hash and verify it against the one crteated by the tool.
Q2. What is the structure of the table.bin file. I mean what it contains, by table I assume it should have some rows and columns, what are they ?

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shashank_r
Contributor I

So.. should I have to raise a new request in the iMX Processor forum, or can this be forwarded or tagged to them ?

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liborukropec
NXP Employee
NXP Employee

Hi,

 

CST is not part of MCUXpresso Config Tools and probably no one will reply here. CST is frequently discussed in this forum.

 

Regards,

Libor

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