NXP IMX8MP CAAM Black Blob

[Annamalai]

HI

Does IMX8MP CAAM module, Black Key Blob storage used for Persistency and re-used during next SOC Power Cycle?

The data sheet says so, but I assume it is not, please correct me if i am wrong, and its very urgent request. please let me know

If not, Red is used for same?

-Annamalai

[Annamalai]

HI

I want to add that only during AES CMAC calculation, i get different result across different SOC Power Cycle, but Decryption is fine.

Is it expected that i get a different values for AES CMAC across SOC Power Cycle using a  Black Key BLOB, and this does not happen with Red Key Blob.

Please confirm my results and let me know your opinion.

-Annamalai