1CFG_CRYPTO ?= y 2CFG_CRYPTO_SIZE_OPTIMIZATION ?= y 3 4ifeq (y,$(CFG_CRYPTO)) 5 6# Ciphers 7CFG_CRYPTO_AES ?= y 8CFG_CRYPTO_DES ?= y 9 10# Cipher block modes 11CFG_CRYPTO_ECB ?= y 12CFG_CRYPTO_CBC ?= y 13CFG_CRYPTO_CTR ?= y 14CFG_CRYPTO_CTS ?= y 15CFG_CRYPTO_XTS ?= y 16 17# Message authentication codes 18CFG_CRYPTO_HMAC ?= y 19CFG_CRYPTO_CMAC ?= y 20CFG_CRYPTO_CBC_MAC ?= y 21 22# Hashes 23CFG_CRYPTO_MD5 ?= y 24CFG_CRYPTO_SHA1 ?= y 25CFG_CRYPTO_SHA224 ?= y 26CFG_CRYPTO_SHA256 ?= y 27CFG_CRYPTO_SHA384 ?= y 28CFG_CRYPTO_SHA512 ?= y 29 30# Asymmetric ciphers 31CFG_CRYPTO_DSA ?= y 32CFG_CRYPTO_RSA ?= y 33CFG_CRYPTO_DH ?= y 34CFG_CRYPTO_ECC ?= y 35 36# Authenticated encryption 37CFG_CRYPTO_CCM ?= y 38CFG_CRYPTO_GCM ?= y 39# Default uses the OP-TEE internal AES-GCM implementation 40CFG_CRYPTO_AES_GCM_FROM_CRYPTOLIB ?= n 41 42endif 43 44ifeq ($(CFG_WITH_PAGER),y) 45ifneq ($(CFG_CRYPTO_SHA256),y) 46$(warning Warning: Enabling CFG_CRYPTO_SHA256 [required by CFG_WITH_PAGER]) 47CFG_CRYPTO_SHA256:=y 48endif 49endif 50 51ifeq ($(CFG_CRYPTO_WITH_CE),y) 52ifeq ($(CFG_ARM32_core),y) 53CFG_CRYPTO_AES_ARM32_CE ?= $(CFG_CRYPTO_AES) 54CFG_CRYPTO_SHA1_ARM32_CE ?= $(CFG_CRYPTO_SHA1) 55CFG_CRYPTO_SHA256_ARM32_CE ?= $(CFG_CRYPTO_SHA256) 56endif 57ifeq ($(CFG_ARM64_core),y) 58CFG_CRYPTO_AES_ARM64_CE ?= $(CFG_CRYPTO_AES) 59CFG_CRYPTO_SHA1_ARM64_CE ?= $(CFG_CRYPTO_SHA1) 60CFG_CRYPTO_SHA256_ARM64_CE ?= $(CFG_CRYPTO_SHA256) 61endif 62endif 63 64# Cryptographic extensions can only be used safely when OP-TEE knows how to 65# preserve the VFP context 66ifeq ($(CFG_CRYPTO_SHA256_ARM32_CE),y) 67$(call force,CFG_WITH_VFP,y,required by CFG_CRYPTO_SHA256_ARM32_CE) 68endif 69ifeq ($(CFG_CRYPTO_SHA256_ARM64_CE),y) 70$(call force,CFG_WITH_VFP,y,required by CFG_CRYPTO_SHA256_ARM64_CE) 71endif 72ifeq ($(CFG_CRYPTO_SHA1_ARM32_CE),y) 73$(call force,CFG_WITH_VFP,y,required by CFG_CRYPTO_SHA1_ARM32_CE) 74endif 75ifeq ($(CFG_CRYPTO_SHA1_ARM64_CE),y) 76$(call force,CFG_WITH_VFP,y,required by CFG_CRYPTO_SHA1_ARM64_CE) 77endif 78ifeq ($(CFG_CRYPTO_AES_ARM64_CE),y) 79$(call force,CFG_WITH_VFP,y,required by CFG_CRYPTO_AES_ARM64_CE) 80endif 81 82cryp-enable-all-depends = $(call cfg-enable-all-depends,$(strip $(1)),$(foreach v,$(2),CFG_CRYPTO_$(v))) 83$(eval $(call cryp-enable-all-depends,CFG_REE_FS, AES ECB CTR HMAC SHA256 GCM)) 84$(eval $(call cryp-enable-all-depends,CFG_RPMB_FS, AES ECB CTR HMAC SHA256 GCM)) 85 86# Dependency checks: warn and disable some features if dependencies are not met 87 88cryp-dep-one = $(call cfg-depends-one,CFG_CRYPTO_$(strip $(1)),$(patsubst %, CFG_CRYPTO_%,$(strip $(2)))) 89cryp-dep-all = $(call cfg-depends-all,CFG_CRYPTO_$(strip $(1)),$(patsubst %, CFG_CRYPTO_%,$(strip $(2)))) 90 91$(eval $(call cryp-dep-one, ECB, AES DES)) 92$(eval $(call cryp-dep-one, CBC, AES DES)) 93$(eval $(call cryp-dep-one, CTR, AES)) 94# CTS is implemented with ECB and CBC 95$(eval $(call cryp-dep-all, CTS, AES ECB CBC)) 96$(eval $(call cryp-dep-one, XTS, AES)) 97$(eval $(call cryp-dep-one, HMAC, AES DES)) 98$(eval $(call cryp-dep-one, HMAC, MD5 SHA1 SHA224 SHA256 SHA384 SHA512)) 99$(eval $(call cryp-dep-one, CMAC, AES)) 100$(eval $(call cryp-dep-one, CBC_MAC, AES DES)) 101$(eval $(call cryp-dep-one, CCM, AES)) 102$(eval $(call cryp-dep-one, GCM, AES)) 103# If no AES cipher mode is left, disable AES 104$(eval $(call cryp-dep-one, AES, ECB CBC CTR CTS XTS)) 105# If no DES cipher mode is left, disable DES 106$(eval $(call cryp-dep-one, DES, ECB CBC)) 107 108# dsa_make_params() needs all three SHA-2 algorithms. 109# Disable DSA if any is missing. 110$(eval $(call cryp-dep-all, DSA, SHA256 SHA384 SHA512)) 111 112cryp-one-enabled = $(call cfg-one-enabled,$(foreach v,$(1),CFG_CRYPTO_$(v))) 113cryp-all-enabled = $(call cfg-all-enabled,$(foreach v,$(1),CFG_CRYPTO_$(v))) 114 115_CFG_CRYPTO_WITH_ACIPHER := $(call cryp-one-enabled, RSA DSA DH ECC) 116_CFG_CRYPTO_WITH_AUTHENC := $(and $(filter y,$(CFG_CRYPTO_AES)), $(call cryp-one-enabled, CCM GCM)) 117_CFG_CRYPTO_WITH_CIPHER := $(call cryp-one-enabled, AES DES) 118_CFG_CRYPTO_WITH_HASH := $(call cryp-one-enabled, MD5 SHA1 SHA224 SHA256 SHA384 SHA512) 119_CFG_CRYPTO_WITH_MAC := $(call cryp-one-enabled, HMAC CMAC CBC_MAC) 120_CFG_CRYPTO_WITH_CBC := $(call cryp-one-enabled, CBC CBC_MAC) 121_CFG_CRYPTO_WITH_ASN1 := $(call cryp-one-enabled, RSA DSA ECC) 122_CFG_CRYPTO_WITH_FORTUNA_PRNG := $(call cryp-all-enabled, AES SHA256) 123