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Fixes ROTPK hash generation for ECDSA encryption

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Forced hash generation used to always generate hash via RSA encryption.
This patch changes encryption based on ARM_ROTPK_LOCATION.
Also removes setting KEY_ALG based on ARM_ROTPL_LOCATION - there is no
relation between these two.

Signed-off-by: Max Shvetsov <maksims.svecovs@arm.com>
Change-Id: Id727d2ed06176a243719fd0adfa0cae26c325005
This commit is contained in:
Max Shvetsov 2020-02-11 12:41:08 +00:00
parent 63aa4094fb
commit 698e231d92
1 changed files with 3 additions and 3 deletions
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6
plat/arm/board/common/board_common.mk
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@ -17,7 +17,7 @@ ifneq (${ARM_CRYPTOCELL_INTEG}, 1)
ifeq (${ARM_ROTPK_LOCATION}, regs)
ARM_ROTPK_LOCATION_ID = ARM_ROTPK_REGS_ID
else ifeq (${ARM_ROTPK_LOCATION}, devel_rsa)
KEY_ALG := rsa
CRYPTO_ALG=rsa
ARM_ROTPK_LOCATION_ID = ARM_ROTPK_DEVEL_RSA_ID
ARM_ROTPK_HASH = plat/arm/board/common/rotpk/arm_rotpk_rsa_sha256.bin
$(eval $(call add_define_val,ARM_ROTPK_HASH,'"$(ARM_ROTPK_HASH)"'))
@ -25,7 +25,7 @@ $(BUILD_PLAT)/bl2/arm_dev_rotpk.o : $(ARM_ROTPK_HASH)
$(warning Development keys support for FVP is deprecated. Use `regs` \
option instead)
else ifeq (${ARM_ROTPK_LOCATION}, devel_ecdsa)
KEY_ALG := ecdsa
CRYPTO_ALG=ec
ARM_ROTPK_LOCATION_ID = ARM_ROTPK_DEVEL_ECDSA_ID
ARM_ROTPK_HASH = plat/arm/board/common/rotpk/arm_rotpk_ecdsa_sha256.bin
$(eval $(call add_define_val,ARM_ROTPK_HASH,'"$(ARM_ROTPK_HASH)"'))
@ -50,7 +50,7 @@ $(ARM_ROTPK_HASH) : $(HASH_PREREQUISITES)
ifndef ROT_KEY
$(error Cannot generate hash: no ROT_KEY defined)
endif
openssl rsa -in $< -pubout -outform DER | openssl dgst \
openssl ${CRYPTO_ALG} -in $< -pubout -outform DER | openssl dgst \
-sha256 -binary > $@
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