Nicolas Boichat ba78fa4173 usb_update: Add support for INJECT_ENTROPY command
As part of the pairing process, AP needs to be able to inject
some entropy into the base.

Let's also define PAIR_CHALLENGE, which will be implemented in
a later CL.

BRANCH=none
BUG=b:38487027
TEST=Flash hammer. On host, reboot hammer to RO:
     usb_updater2 -r; sleep 0.5; usb_updater2 -s
     usb_updater2 -e (adds entropy)
     EC console: check that rollbackinfo shows secret is updated

Change-Id: I964bb578c6bfbb1ab5105a70b43682d51df4ed47
Reviewed-on: https://chromium-review.googlesource.com/513807
Commit-Ready: Nicolas Boichat <drinkcat@chromium.org>
Tested-by: Nicolas Boichat <drinkcat@chromium.org>
Reviewed-by: Randall Spangler <rspangler@chromium.org>
2017-05-25 18:58:47 -07:00
2016-11-10 21:28:33 -08:00
2017-05-25 00:14:08 -07:00
2017-05-25 02:33:04 -07:00
2012-05-11 09:11:52 -07:00
2014-04-02 19:58:53 +00:00
2015-12-08 20:05:05 -08:00

For an overview of the Embedded Controller firmware, refer to

http://www.chromium.org/chromium-os/2014-firmware-summit

For instructions on building from source, refer to

http://www.chromium.org/chromium-os/ec-development/getting-started-building-ec-images-quickly
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