Messages in this thread | | | Subject | Re: [PATCH v1 0/3] KEYS: trusted: Introduce support for NXP CAAM-based trusted keys | From | Ahmad Fatoum <> | Date | Wed, 17 Mar 2021 15:08:01 +0100 |
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Hello Richard,
On 17.03.21 00:10, Richard Weinberger wrote: > On Tue, Mar 16, 2021 at 6:24 PM Ahmad Fatoum <a.fatoum@pengutronix.de> wrote: >> This series has been tested with dmcrypt[5] on an i.MX6DL. > > Do have this series also in a git repo to pull from? > I'd like to give it a test on various systems.
Yes, please pull git://git.pengutronix.de/afa/linux Branch v5.12/topic/trusted-source-caam
It includes these three patches on top of Jarkko's linux-tpmdd/master.
>> Looking forward to your feedback. > > Thanks for working on this! David and I will have a closer look these days.
Great. Here is a simple testing regiment that could help you getting started:
# First boot DEV=/dev/loop0 ALGO=aes-cbc-essiv:sha256 KEYNAME=kmk BLOCKS=20
mount -o remount,rw / fallocate -l $((BLOCKS*512)) ~/loop0.img losetup -P $DEV ~/loop0.img KEY="$(keyctl add trusted $KEYNAME 'new 32' @s)" keyctl pipe $KEY >~/kmk.blob
TABLE="0 $BLOCKS crypt $ALGO :32:trusted:$KEYNAME 0 $DEV 0 1 allow_discards" echo $TABLE | dmsetup create mydev echo $TABLE | dmsetup load mydev dd if=/dev/zero of=/dev/mapper/mydev || true echo "It works!" 1<> /dev/mapper/mydev cryptsetup close mydev
# Second boot DEV=/dev/loop0 ALGO=aes-cbc-essiv:sha256 KEYNAME=kmk BLOCKS=20
losetup -P $DEV ~/loop0.img keyctl add trusted $KEYNAME "load $(cat ~/kmk.blob)" @s TABLE="0 $BLOCKS crypt $ALGO :32:trusted:$KEYNAME 0 $DEV 0 1 allow_discards" echo $TABLE | dmsetup create mydev echo $TABLE | dmsetup load mydev
# Should print that It works! hexdump -C /dev/mapper/mydev
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