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https://github.com/AsahiLinux/u-boot
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26839e5dde
Enable and provision the SCP03 keys on a TEE controlled secured elemt from the U-Boot shell. Executing this command will generate and program new SCP03 encryption keys on the secure element NVM. Depending on the TEE implementation, the keys would then be stored in some persistent storage or better derived from some platform secret (so they can't be lost). Signed-off-by: Jorge Ramirez-Ortiz <jorge@foundries.io> Reviewed-by: Simon Glass <sjg@chromium.org> Reviewed-by: Igor Opaniuk <igor.opaniuk@foundries.io>
52 lines
1.1 KiB
C
52 lines
1.1 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* (C) Copyright 2021, Foundries.IO
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*
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*/
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#include <common.h>
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#include <command.h>
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#include <env.h>
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#include <scp03.h>
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int do_scp03_enable(struct cmd_tbl *cmdtp, int flag, int argc,
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char *const argv[])
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{
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if (argc != 1)
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return CMD_RET_USAGE;
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if (tee_enable_scp03()) {
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printf("TEE failed to enable SCP03\n");
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return CMD_RET_FAILURE;
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}
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printf("SCP03 is enabled\n");
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return CMD_RET_SUCCESS;
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}
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int do_scp03_provision(struct cmd_tbl *cmdtp, int flag, int argc,
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char *const argv[])
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{
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if (argc != 1)
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return CMD_RET_USAGE;
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if (tee_provision_scp03()) {
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printf("TEE failed to provision SCP03 keys\n");
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return CMD_RET_FAILURE;
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}
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printf("SCP03 is provisioned\n");
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return CMD_RET_SUCCESS;
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}
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static char text[] =
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"provides a command to enable SCP03 and provision the SCP03 keys\n"
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" enable - enable SCP03 on the TEE\n"
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" provision - provision SCP03 on the TEE\n";
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U_BOOT_CMD_WITH_SUBCMDS(scp03, "Secure Channel Protocol 03 control", text,
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U_BOOT_SUBCMD_MKENT(enable, 1, 1, do_scp03_enable),
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U_BOOT_SUBCMD_MKENT(provision, 1, 1, do_scp03_provision));
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