AES Keys Encryption Support: When do you use the Unique Key, and When do you Use the Crypto Key?

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AES Keys Encryption Support: When do you use the Unique Key, and When do you Use the Crypto Key?

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JohnKlug
Senior Contributor I

Looking at this NXP kernel change:

https://github.com/Freescale/linux-fslc/commit/c7a1385b44a35373e6af8914c4a0e92856edc0b7

The author adds a feature to use the Unique Key and the Crypto key.

From documentation I have read, the Unique key is only 64 bytes, and the Crypto key is 128 bytes.

I am using the i.MX6ULL which the author of this change mentions in his testing.

Which applications should use the Unique Key, and which applications should use the Crypto key?

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AldoG
NXP TechSupport
NXP TechSupport

Hello,

I have snet you some comments directly.

Best regards/Saludos,
Aldo.

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JohnKlug
Senior Contributor I

Where is it?  I have not received a private NXP message since Oct 2023. Usually I am notified by E-Mail when something is posted, but have not received an E-Mail since you posted that you would be sending me some kind of correspondence.

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