KeyBlob secure boot

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KeyBlob secure boot

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otaissey
Contributor III

Hello community,

I am checking the operation of the i.MXRT600 OTFAD boot.

[Question]
Q1.
If the Key written to the shadow register of the i.MX6xx and the KeyBlob written of the QSPI Flash are successfully authenticated, the boot is successful. Is my understand correct ?
Q2.
I have a question about KeyBlob(0x0). the keyBlob is changed in the secure binary built image with SPT, even though the key is the same. How can I understand this ?
I attached file. (FILE NAME: 220429_KeyBlob_v2.pdf)
Please help you understand my question.

Best Regards,
Issey

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jeremyzhou
NXP Employee
NXP Employee

Hi,
Thank you for your interest in NXP Semiconductor products and for the opportunity to serve you.
To provide the fastest possible support, I'd highly recommend you refer to the application to learn the details on the OTFAD module.
Have a great day,
TIC

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