Is encrypting i.MX 8MM EVK without OP-TEE possible?

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Is encrypting i.MX 8MM EVK without OP-TEE possible?

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kanimozhi_t
Contributor V

Hi,

    We recently implemented authenticated encryption on our i.MX 8MM EVK board. We followed this community post for enabling the OP-TEE for CAAM DEK blob storage. Though we succeed, it arises the following questions,

  1. Is there any feasible option not to use OP-TEE / Trust Zone and still create the DEK blob for image encryption?
  2. Are there other features of the i.MX 8M that only can be accessed while in Trust Zone?

    We could get any conclusive answers for the above and a clarification from your side would be appreciated.

Thank you.

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Bio_TICFSL
NXP TechSupport
NXP TechSupport

Hello kanimozhi_t,

First answer is no, and second answer is yes, but you can view this appnote for more clear:

https://www.nxp.com/docs/en/application-note/AN12056.pdf.

Regards

 

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511 Views
Bio_TICFSL
NXP TechSupport
NXP TechSupport

Hello kanimozhi_t,

First answer is no, and second answer is yes, but you can view this appnote for more clear:

https://www.nxp.com/docs/en/application-note/AN12056.pdf.

Regards