Hi everybody,
suppose i have a imx233 based arm system with otp key fuses stored different from zero.
I would like to encrypt OFFLINE (say an Ubuntu system) a file and decrypt it on my board once root file system has been mounted
and the system initialized (say rc.local).
Any idea?
Thanks in Advance
Paolo
Hi Paolo,
i'm working on a Mainline Linux driver for otp fuses:
https://github.com/lategoodbye/fsl_ocotp/commit/7c98e19755b69f761885b0e1ceb2c258a7c47ade
It provides a readonly sysfs interface to the otp values. Maybe it is helpful for you.
Regards
Stefan
Basically i.MX233 Data Co-Processor may be applied as hardware crypto accelerator,
supporting AES. Please refer to Chapter 16 [Data Co-Processor (DCP)] of the i.MX23
Reference Manual for more details.
http://cache.freescale.com/files/dsp/doc/ref_manual/IMX23RM.pdf
As for Linux please look at Chapter 20 [Data Co-Processor (DCP) Driver] of the
“mx23_linux.pdf”.
Have a great day,
Yuri
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