topic Re: Imx8mq: How to encrypt rootfs in i.MX Processors

Imx8mq: How to encrypt rootfs

kinjalGediya — Mon, 15 Mar 2021 13:29:21 GMT

Hi,

I am using iMX8MQ based custom board and I want to encrypt rootfs.
I have gone through the community link

link: https://community.nxp.com/t5/i-MX-Processors/How-to-create-an-encrypted-rootfs-for-iMX8MQ-using-yocto/m-p/1240916/emcs_t/S2h8ZW1haWx8bWVudGlvbl9zdWJzY3JpcHRpb258S0xXNFlCQ0NOTTBZREN8MTI0MDkxNnxBVF9NRU5USU9OU3xoSw#M170412

I am facing the same as describe in above link. I am not able to create "/dev/caam-keygen" node.
I am working on kernel version 5.4.3 but I tried with kernel version 5.4.80 but still facing the same issue.
I am attaching kernel configuration for your reference.

Another thing I wanted to know that which device driver file is responsible to create "/dev/caam-keygen" node?

Re: Imx8mq: How to encrypt rootfs

b36401 — Wed, 17 Mar 2021 04:41:45 GMT

Please make sure that keygen sources are included (I mean drivers/crypto/caam/caamrng.c)

Re: Imx8mq: How to encrypt rootfs

kinjalGediya — Sat, 27 Mar 2021 20:17:38 GMT

Hi,
Thanks for reply.

I have follow the steps successfully and now I wanted to know that How to add support in yocto to create encrypted rootfs so that I can directly flash encrypted rootfs?

Hope for your quick response.

Re: Imx8mq: How to encrypt rootfs

b36401 — Thu, 01 Apr 2021 05:49:34 GMT

I can offer this document regarding to rootfs encryption:
https://community.nxp.com/docs/DOC-342300

Re: Imx8mq: How to encrypt rootfs

kinjalGediya — Fri, 07 May 2021 06:30:30 GMT

Hi,
I am not able to open link which you have provided.

https://community.nxp.com/docs/DOC-342300

Can you give any alternative link for the same.

Re: Imx8mq: How to encrypt rootfs

b36401 — Fri, 20 Aug 2021 05:48:29 GMT

I sent you the article over email.

Re: Imx8mq: How to encrypt rootfs

Aimo — Thu, 07 Oct 2021 09:19:25 GMT

@b36401 Can I get the same article, please.

Re: Imx8mq: How to encrypt rootfs

gnulux — Tue, 18 Oct 2022 17:04:24 GMT

Is it possible to have the documentation too ? I can't download it

Re: Imx8mq: How to encrypt rootfs

Pugo — Fri, 04 Nov 2022 14:48:06 GMT

I am also trying to investigate encrypted rootfs, but can not read this document.

If it is an NDA matter I am currently trying to figure out how the process of that is handled within my organization.

Re: Imx8mq: How to encrypt rootfs

ssepulveda — Mon, 07 Apr 2025 16:41:53 GMT

Could you share the document with me, please?