i.MX ProcessorsのトピックSecurity feature on imx6

Security feature on imx6

dhanunjay — Fri, 12 Feb 2016 08:35:49 GMT

Hi All,

I have some queries below on imx6 security feature :

1. Does NXP has burned keys in to the IMX.6 the processor for Secure state or Trusted state?can you please explain states and key management?

2. Is secure boot using HAB comes under any of above two modes.

igorpadykov — Fri, 12 Feb 2016 08:44:20 GMT

Hi DHANUNJAY

yes keys are burned, for usage one can look at

Best regards

igor

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dhanunjay — Fri, 12 Feb 2016 14:24:10 GMT

Hi Igor,

Thanks for quick reply,

I have gone through the above links and imx6 security reference manual.

From imx6 DL ref manual section: 8.3.1

FUSE Configuration Definition Shipped value settings

DIE-XCORDINATE[ Freescale Device Unique Id, 64-bit UID NA Unique ID Settings vary - used by HAB

7:0]

DIE-YCORDINATE[

7:0]

WAFER_NO[4:0]

LOT_NO_ENC[42:40]

LOT_NO_ENC[39:32]

LOT_NO_ENC[31:24]

LOT_NO_ENC[23:16]

LOT_NO_ENC[15:8]

LOT_NO_ENC[7:0]

The above keys burned to chip.

Can i know about why UNIQUE_ID burned,how Unique_ID keep the board to secure state?
Becaue of Uniue id system in secure state. so will be in the same state remain, if we start without additional checks for HAB secure boot in the same state?

can you please confirm above points.

Thanks,

Dhanunjay.

igorpadykov — Sat, 13 Feb 2016 01:19:01 GMT

Hi DHANUNJAY

please create new thread for these questions

Best regards

igor