SK-AM69 OTP keys usage in OP-TEE

Marcin Dyrdól

Other Parts Discussed in Thread: SK-AM69, AM69

Hi guys,

I am using SK-AM69 with TEE embedded. OP-TEE provides supports of DKEK which is being read from board via TISCI.

It is now enough for my purposes. I would like to use a keys fused by OTP Keywriter tool when board will work as HS-SE device.

Does someone knows if this have a chance of succeeding?

Regards,

Martin

0 Diwakar Dhyani over 1 year ago

Hi Martin

DSMEK is feature recently got added to the SDK and there is no such requirement to add the hook in OPTEE.

So it is not enabled by default in OPTEE, though you can refer to the changes done for the DKEK for the DSMEK implementation.

Regards
Diwakar

0 Marcin Dyrdól over 1 year ago in reply to Diwakar Dhyani

Thanks for your reply Diwakar!

It was launched in 09.01.08? I see that AM69 has the newest SDK from 09.01.06

0 Diwakar Dhyani over 1 year ago in reply to Marcin Dyrdól

Hi Marcin

Marcin Dyrdól said:
It was launched in 09.01.08? I see that AM69 has the newest SDK from 09.01.06

TIFS comes from the separate repo it came in 9.0 TIFS.

Currently there is no hook in optee for that as there is no such requirement.

Can you elaborate on your need to have DSMEK in optee ?

Regards
Diwakar

+1 Diwakar Dhyani over 1 year ago

Hi Marcin

The 09_00_01 and afterwords contain this feature.

Regards
Diwakar.

0 Marcin Dyrdól over 1 year ago in reply to Diwakar Dhyani

Awesome

0 Marcin Dyrdól over 1 year ago in reply to Diwakar Dhyani

In the nearest future I will test my implementation of getting DSMEK in OP-TEE after that will open new thread, for now it is closed

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