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doc: describe the scp03 command

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The Secure Channel Protocol 03 command sends control requests
(enable/provision) to the TEE implementing the protocol between the
processor and the secure element.

Signed-off-by: Jorge Ramirez-Ortiz <jorge@foundries.io>
Reviewed-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Jorge Ramirez-Ortiz 2021-02-14 16:27:26 +01:00 committed by Tom Rini
parent 5a8783c80c
commit ffd8483b3c
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doc/usage/index.rst
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qfw
sbi
true
scp03

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.. SPDX-License-Identifier: GPL-2.0+
scp03 command
=============
Synopsis
--------
::
scp03 enable
scp03 provision
Description
-----------
The *scp03* command calls into a Trusted Application executing in a
Trusted Execution Environment to enable (if present) the Secure
Channel Protocol 03 stablished between the processor and the secure
element.
This protocol encrypts all the communication between the processor and
the secure element using a set of pre-defined keys. These keys can be
rotated (provisioned) using the *provision* request.
See also
--------
For some information on the internals implemented in the TEE, please
check the GlobalPlatform documentation on `Secure Channel Protocol '03'`_
.. _Secure Channel Protocol '03':
https://globalplatform.org/wp-content/uploads/2014/07/GPC_2.3_D_SCP03_v1.1.2_PublicRelease.pdf