mirror of
https://github.com/brain-hackers/u-boot-brain
synced 2024-07-23 11:29:43 +09:00
0200020bc2
Freescale's SEC block has built-in Data Encryption
Key(DEK) Blob Protocol which provides a method for
protecting a DEK for non-secure memory storage.
SEC block protects data in a data structure called
a Secret Key Blob, which provides both confidentiality
and integrity protection.
Every time the blob encapsulation is executed,
a AES-256 key is randomly generated to encrypt the DEK.
This key is encrypted with the OTP Secret key
from SoC. The resulting blob consists of the encrypted
AES-256 key, the encrypted DEK, and a 16-bit MAC.
During decapsulation, the reverse process is performed
to get back the original DEK. A caveat to the blob
decapsulation process, is that the DEK is decrypted
in secure-memory and can only be read by FSL SEC HW.
The DEK is used to decrypt data during encrypted boot.
Commands added
--------------
dek_blob - encapsulating DEK as a cryptgraphic blob
Commands Syntax
---------------
dek_blob src dst len
Encapsulate and create blob of a len-bits DEK at
address src and store the result at address dst.
Signed-off-by: Raul Cardenas <Ulises.Cardenas@freescale.com>
Signed-off-by: Nitin Garg <nitin.garg@freescale.com>
Signed-off-by: Ulises Cardenas <ulises.cardenas@freescale.com>
Signed-off-by: Ulises Cardenas-B45798 <Ulises.Cardenas@freescale.com>
84 lines
2.3 KiB
Makefile
84 lines
2.3 KiB
Makefile
#
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# (C) Copyright 2000-2006
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# Wolfgang Denk, DENX Software Engineering, wd@denx.de.
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#
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# (C) Copyright 2011 Freescale Semiconductor, Inc.
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#
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# SPDX-License-Identifier: GPL-2.0+
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#
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ifeq ($(SOC),$(filter $(SOC),mx25 mx35 mx5 mx6 vf610))
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obj-y = iomux-v3.o
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endif
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ifeq ($(SOC),$(filter $(SOC),mx5 mx6))
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obj-y += timer.o cpu.o speed.o
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obj-$(CONFIG_SYS_I2C_MXC) += i2c-mxv7.o
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endif
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ifeq ($(SOC),$(filter $(SOC),mx6 mxs))
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obj-y += misc.o
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obj-$(CONFIG_SPL_BUILD) += spl.o
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endif
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ifeq ($(SOC),$(filter $(SOC),mx6))
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obj-$(CONFIG_CMD_SATA) += sata.o
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obj-$(CONFIG_IMX_VIDEO_SKIP) += video.o
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endif
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obj-$(CONFIG_CMD_BMODE) += cmd_bmode.o
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obj-$(CONFIG_CMD_HDMIDETECT) += cmd_hdmidet.o
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obj-$(CONFIG_CMD_DEKBLOB) += cmd_dek.o
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quiet_cmd_cpp_cfg = CFGS $@
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cmd_cpp_cfg = $(CPP) $(cpp_flags) -x c -o $@ $<
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IMX_CONFIG = $(CONFIG_IMX_CONFIG:"%"=%).cfgtmp
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$(IMX_CONFIG): %.cfgtmp: % FORCE
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$(Q)mkdir -p $(dir $@)
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$(call if_changed_dep,cpp_cfg)
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MKIMAGEFLAGS_u-boot.imx = -n $(filter-out $< $(PHONY),$^) -T imximage \
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-e $(CONFIG_SYS_TEXT_BASE)
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u-boot.imx: u-boot.bin $(IMX_CONFIG) FORCE
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$(call if_changed,mkimage)
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ifeq ($(CONFIG_OF_SEPARATE),y)
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MKIMAGEFLAGS_u-boot-dtb.imx = -n $(filter-out $< $(PHONY),$^) -T imximage \
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-e $(CONFIG_SYS_TEXT_BASE)
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u-boot-dtb.imx: u-boot-dtb.bin $(IMX_CONFIG) FORCE
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$(call if_changed,mkimage)
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endif
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MKIMAGEFLAGS_SPL = -n $(filter-out $< $(PHONY),$^) -T imximage \
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-e $(CONFIG_SPL_TEXT_BASE)
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SPL: spl/u-boot-spl.bin $(IMX_CONFIG) FORCE
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$(call if_changed,mkimage)
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MKIMAGEFLAGS_u-boot.uim = -A arm -O U-Boot -a $(CONFIG_SYS_TEXT_BASE) \
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-e $(CONFIG_SYS_TEXT_BASE) -C none
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u-boot.uim: u-boot.bin FORCE
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$(call if_changed,mkimage)
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OBJCOPYFLAGS += -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO)
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append = cat $(filter-out $< $(PHONY), $^) >> $@
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quiet_cmd_pad_cat = CAT $@
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cmd_pad_cat = $(cmd_objcopy) && $(append) || rm -f $@
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u-boot-with-spl.imx: SPL u-boot.uim FORCE
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$(call if_changed,pad_cat)
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u-boot-with-nand-spl.imx: spl/u-boot-nand-spl.imx u-boot.uim FORCE
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$(call if_changed,pad_cat)
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quiet_cmd_u-boot-nand-spl_imx = GEN $@
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cmd_u-boot-nand-spl_imx = (echo -ne '\x00\x00\x00\x00\x46\x43\x42\x20\x01' && \
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dd bs=1015 count=1 if=/dev/zero 2>/dev/null) | cat - $< > $@
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spl/u-boot-nand-spl.imx: SPL FORCE
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$(call if_changed,u-boot-nand-spl_imx)
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targets += $(addprefix ../../../,$(IMX_CONFIG) SPL u-boot.uim spl/u-boot-nand-spl.imx)
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