Debug imx8m mini

inigovicentewal — Tue, 10 Mar 2020 08:14:24 GMT

Hi,

1.-

I am trying to debug the secure world of OP-TEE, with what mechanisms can I debug it? How can I get to the secure hardware keys?

2.-

OP-TEE uses the platform's HUK to derive keys such as SSK (secure storage key), can you find out what the board's HUK is or verify what key it uses?

Thanks

Re: Debug imx8m mini

gusarambula — Sat, 25 Apr 2020 20:28:54 GMT

Hello Iñigo Vicente,

I’m sorry if it’s too late but starting in L4.14.98_2.0.0_GA release OP-TEE includes a Hardware Unique Key (HUK) which is generated by a derivation of the OTPMK (Master Key Verification Blob) and used by OP-TEE to manage its secure storage. You can find more information on this process on the following code:

https://source.codeaurora.org/external/imx/imx-optee-os/commit/core?h=imx_4.14.98_2.0.0_ga&id=a7cb2e7ea6f7e9bc6dc38389e4b7ebbaecc71ca5

I hope this helps!

Regards,

i.MX ProcessorsのトピックDebug imx8m mini

Debug imx8m mini

Re: Debug imx8m mini