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