1CFG_CRYPTO ?= y 2# Select small code size in the crypto library if applicable (for instance 3# LibTomCrypt has -DLTC_SMALL_CODE) 4# Note: the compiler flag -Os is not set here but by CFG_CC_OPT_LEVEL 5CFG_CRYPTO_SIZE_OPTIMIZATION ?= y 6 7ifeq (y,$(CFG_CRYPTO)) 8 9############################################################### 10# Platform crypto-driver configuration. It has a higher priority over the 11# generic crypto configuration below. 12############################################################### 13CRYPTO_MAKEFILES := $(sort $(wildcard core/drivers/crypto/*/crypto.mk)) 14include $(CRYPTO_MAKEFILES) 15 16# Ciphers 17CFG_CRYPTO_AES ?= y 18CFG_CRYPTO_DES ?= y 19CFG_CRYPTO_SM4 ?= y 20 21# Cipher block modes 22CFG_CRYPTO_ECB ?= y 23CFG_CRYPTO_CBC ?= y 24CFG_CRYPTO_CTR ?= y 25CFG_CRYPTO_CTS ?= y 26CFG_CRYPTO_XTS ?= y 27 28# Message authentication codes 29CFG_CRYPTO_HMAC ?= y 30CFG_CRYPTO_CMAC ?= y 31CFG_CRYPTO_CBC_MAC ?= y 32# Instead of calling the AES CBC encryption function for each 16 byte block of 33# input, bundle a maximum of N blocks when possible. A maximum of N*16 bytes of 34# temporary data are allocated on the heap. 35# Minimum value is 1. 36CFG_CRYPTO_CBC_MAC_BUNDLE_BLOCKS ?= 64 37 38# Hashes 39CFG_CRYPTO_MD5 ?= y 40CFG_CRYPTO_SHA1 ?= y 41CFG_CRYPTO_SHA224 ?= y 42CFG_CRYPTO_SHA256 ?= y 43CFG_CRYPTO_SHA384 ?= y 44CFG_CRYPTO_SHA512 ?= y 45CFG_CRYPTO_SHA512_256 ?= y 46CFG_CRYPTO_SM3 ?= y 47CFG_CRYPTO_SHA3_224 ?= y 48CFG_CRYPTO_SHA3_256 ?= y 49CFG_CRYPTO_SHA3_384 ?= y 50CFG_CRYPTO_SHA3_512 ?= y 51 52# Extendable-Output Functions (XOF) 53CFG_CRYPTO_SHAKE128 ?= y 54CFG_CRYPTO_SHAKE256 ?= y 55 56# Asymmetric ciphers 57CFG_CRYPTO_DSA ?= y 58CFG_CRYPTO_RSA ?= y 59CFG_CRYPTO_DH ?= y 60# ECC includes ECDSA and ECDH 61CFG_CRYPTO_ECC ?= y 62CFG_CRYPTO_SM2_PKE ?= y 63CFG_CRYPTO_SM2_DSA ?= y 64CFG_CRYPTO_SM2_KEP ?= y 65CFG_CRYPTO_ED25519 ?= y 66CFG_CRYPTO_X25519 ?= y 67 68# Authenticated encryption 69CFG_CRYPTO_CCM ?= y 70CFG_CRYPTO_GCM ?= y 71# Default uses the OP-TEE internal AES-GCM implementation 72CFG_CRYPTO_AES_GCM_FROM_CRYPTOLIB ?= n 73 74endif 75 76ifeq ($(CFG_WITH_PAGER),y) 77ifneq ($(CFG_CRYPTO_SHA256),y) 78$(warning Warning: Enabling CFG_CRYPTO_SHA256 [required by CFG_WITH_PAGER]) 79CFG_CRYPTO_SHA256:=y 80endif 81endif 82 83$(eval $(call cryp-enable-all-depends,CFG_WITH_SOFTWARE_PRNG, AES ECB SHA256)) 84 85ifeq ($(CFG_CRYPTO_WITH_CE82),y) 86$(call force,CFG_CRYPTO_WITH_CE,y,required with CFG_CRYPTO_WITH_CE82) 87CFG_CRYPTO_SHA512_ARM_CE ?= $(CFG_CRYPTO_SHA512) 88CFG_CORE_CRYPTO_SHA512_ACCEL ?= $(CFG_CRYPTO_SHA512_ARM_CE) 89CFG_CRYPTO_SHA3_ARM_CE ?= $(call cfg-one-enabled, CFG_CRYPTO_SHA3_224 \ 90 CFG_CRYPTO_SHA3_256 CFG_CRYPTO_SHA3_384 \ 91 CFG_CRYPTO_SHA3_512 CFG_CRYPTO_SHAKE128 \ 92 CFG_CRYPTO_SHAKE256) 93CFG_CORE_CRYPTO_SHA3_ACCEL ?= $(CFG_CRYPTO_SHA3_ARM_CE) 94CFG_CRYPTO_SM3_ARM_CE ?= $(CFG_CRYPTO_SM3) 95CFG_CORE_CRYPTO_SM3_ACCEL ?= $(CFG_CRYPTO_SM3_ARM_CE) 96 97# CFG_CRYPTO_SM4_ARM_CE defines whether we use SM4E to optimize SM4 98CFG_CRYPTO_SM4_ARM_CE ?= $(CFG_CRYPTO_SM4) 99CFG_CORE_CRYPTO_SM4_ACCEL ?= $(CFG_CRYPTO_SM4_ARM_CE) 100endif 101 102ifeq ($(CFG_CRYPTO_WITH_CE),y) 103 104$(call force,CFG_AES_GCM_TABLE_BASED,n,conflicts with CFG_CRYPTO_WITH_CE) 105 106# CFG_HWSUPP_PMULT_64 defines whether the CPU supports polynomial multiplies 107# of 64-bit values (Aarch64: PMULL/PMULL2 with the 1Q specifier; Aarch32: 108# VMULL.P64). These operations are part of the Cryptographic Extensions, so 109# assume they are implicitly contained in CFG_CRYPTO_WITH_CE=y. 110CFG_HWSUPP_PMULT_64 ?= y 111 112CFG_CRYPTO_SHA256_ARM_CE ?= $(CFG_CRYPTO_SHA256) 113CFG_CORE_CRYPTO_SHA256_ACCEL ?= $(CFG_CRYPTO_SHA256_ARM_CE) 114CFG_CRYPTO_SHA1_ARM_CE ?= $(CFG_CRYPTO_SHA1) 115CFG_CORE_CRYPTO_SHA1_ACCEL ?= $(CFG_CRYPTO_SHA1_ARM_CE) 116CFG_CRYPTO_AES_ARM_CE ?= $(CFG_CRYPTO_AES) 117CFG_CORE_CRYPTO_AES_ACCEL ?= $(CFG_CRYPTO_AES_ARM_CE) 118 119# CFG_CRYPTO_SM4_ARM_AESE defines whether we use AESE to optimize SM4 120CFG_CRYPTO_SM4_ARM_AESE ?= $(CFG_CRYPTO_SM4) 121CFG_CORE_CRYPTO_SM4_ACCEL ?= $(CFG_CRYPTO_SM4_ARM_AESE) 122else #CFG_CRYPTO_WITH_CE 123 124CFG_AES_GCM_TABLE_BASED ?= y 125 126endif #!CFG_CRYPTO_WITH_CE 127 128 129# Cryptographic extensions can only be used safely when OP-TEE knows how to 130# preserve the VFP context 131ifeq ($(CFG_CRYPTO_SHA256_ARM32_CE),y) 132$(call force,CFG_WITH_VFP,y,required by CFG_CRYPTO_SHA256_ARM32_CE) 133endif 134ifeq ($(CFG_CRYPTO_SHA256_ARM64_CE),y) 135$(call force,CFG_WITH_VFP,y,required by CFG_CRYPTO_SHA256_ARM64_CE) 136endif 137ifeq ($(CFG_CRYPTO_SHA1_ARM_CE),y) 138$(call force,CFG_WITH_VFP,y,required by CFG_CRYPTO_SHA1_ARM_CE) 139endif 140ifeq ($(CFG_CRYPTO_AES_ARM_CE),y) 141$(call force,CFG_WITH_VFP,y,required by CFG_CRYPTO_AES_ARM_CE) 142endif 143ifeq ($(CFG_CORE_CRYPTO_SM4_ACCEL),y) 144$(call force,CFG_WITH_VFP,y,required by CFG_CORE_CRYPTO_SM4_ACCEL) 145endif 146cryp-enable-all-depends = $(call cfg-enable-all-depends,$(strip $(1)),$(foreach v,$(2),CFG_CRYPTO_$(v))) 147$(eval $(call cryp-enable-all-depends,CFG_REE_FS, AES ECB CTR HMAC SHA256 GCM)) 148$(eval $(call cryp-enable-all-depends,CFG_RPMB_FS, AES ECB CTR HMAC SHA256 GCM)) 149 150# Dependency checks: warn and disable some features if dependencies are not met 151 152cryp-dep-one = $(call cfg-depends-one,CFG_CRYPTO_$(strip $(1)),$(patsubst %, CFG_CRYPTO_%,$(strip $(2)))) 153cryp-dep-all = $(call cfg-depends-all,CFG_CRYPTO_$(strip $(1)),$(patsubst %, CFG_CRYPTO_%,$(strip $(2)))) 154 155$(eval $(call cryp-dep-one, ECB, AES DES)) 156$(eval $(call cryp-dep-one, CBC, AES DES)) 157$(eval $(call cryp-dep-one, CTR, AES)) 158# CTS is implemented with ECB and CBC 159$(eval $(call cryp-dep-all, CTS, AES ECB CBC)) 160$(eval $(call cryp-dep-one, XTS, AES)) 161$(eval $(call cryp-dep-one, HMAC, AES DES)) 162$(eval $(call cryp-dep-one, HMAC, MD5 SHA1 SHA224 SHA256 SHA384 SHA512)) 163$(eval $(call cryp-dep-one, CMAC, AES)) 164$(eval $(call cryp-dep-one, CBC_MAC, AES DES)) 165$(eval $(call cryp-dep-one, CCM, AES)) 166$(eval $(call cryp-dep-one, GCM, AES)) 167# If no AES cipher mode is left, disable AES 168$(eval $(call cryp-dep-one, AES, ECB CBC CTR CTS XTS)) 169# If no DES cipher mode is left, disable DES 170$(eval $(call cryp-dep-one, DES, ECB CBC)) 171# SM2 is Elliptic Curve Cryptography, it uses some generic ECC functions 172$(eval $(call cryp-dep-one, SM2_PKE, ECC)) 173$(eval $(call cryp-dep-one, SM2_DSA, ECC)) 174$(eval $(call cryp-dep-one, SM2_KEP, ECC)) 175 176############################################################### 177# libtomcrypt (LTC) specifics, phase #1 178# LTC is only configured via _CFG_CORE_LTC_ prefixed variables 179# 180# _CFG_CORE_LTC_xxx_DESC means that LTC will only register the 181# descriptor of the algorithm, not provide a 182# crypt_xxx_alloc_ctx() function. 183############################################################### 184 185# If LTC is the cryptolib, pull configuration from CFG_CRYPTO_xxx 186ifeq ($(CFG_CRYPTOLIB_NAME),tomcrypt) 187# dsa_make_params() needs all three SHA-2 algorithms. 188# Disable DSA if any is missing. 189$(eval $(call cryp-dep-all, DSA, SHA256 SHA384 SHA512)) 190 191# Assign _CFG_CORE_LTC_xxx based on CFG_CRYPTO_yyy 192core-ltc-vars = AES DES 193core-ltc-vars += ECB CBC CTR CTS XTS 194core-ltc-vars += MD5 SHA1 SHA224 SHA256 SHA384 SHA512 SHA512_256 195core-ltc-vars += SHA3_224 SHA3_256 SHA3_384 SHA3_512 SHAKE128 SHAKE256 196core-ltc-vars += HMAC CMAC CBC_MAC 197core-ltc-vars += CCM 198ifeq ($(CFG_CRYPTO_AES_GCM_FROM_CRYPTOLIB),y) 199core-ltc-vars += GCM 200endif 201core-ltc-vars += RSA DSA DH ECC 202core-ltc-vars += SIZE_OPTIMIZATION 203core-ltc-vars += SM2_PKE 204core-ltc-vars += SM2_DSA 205core-ltc-vars += SM2_KEP 206core-ltc-vars += ED25519 X25519 207# Assigned selected CFG_CRYPTO_xxx as _CFG_CORE_LTC_xxx 208$(foreach v, $(core-ltc-vars), $(eval _CFG_CORE_LTC_$(v) := $(CFG_CRYPTO_$(v)))) 209_CFG_CORE_LTC_MPI := $(CFG_CORE_MBEDTLS_MPI) 210_CFG_CORE_LTC_AES_ACCEL := $(CFG_CORE_CRYPTO_AES_ACCEL) 211_CFG_CORE_LTC_SHA1_ACCEL := $(CFG_CORE_CRYPTO_SHA1_ACCEL) 212_CFG_CORE_LTC_SHA256_ACCEL := $(CFG_CORE_CRYPTO_SHA256_ACCEL) 213_CFG_CORE_LTC_SHA512_ACCEL := $(CFG_CORE_CRYPTO_SHA512_ACCEL) 214_CFG_CORE_LTC_SHA3_ACCEL := $(CFG_CORE_CRYPTO_SHA3_ACCEL) 215endif 216 217############################################################### 218# mbedtls specifics 219############################################################### 220 221ifeq ($(CFG_CRYPTOLIB_NAME),mbedtls) 222# mbedtls has to be complemented with some algorithms by LTC 223# Specify the algorithms here 224_CFG_CORE_LTC_DSA := $(CFG_CRYPTO_DSA) 225_CFG_CORE_LTC_MPI := $(CFG_CRYPTO_DSA) 226_CFG_CORE_LTC_SHA256_DESC := $(CFG_CRYPTO_DSA) 227_CFG_CORE_LTC_SHA384_DESC := $(CFG_CRYPTO_DSA) 228_CFG_CORE_LTC_SHA512_DESC := $(CFG_CRYPTO_DSA) 229_CFG_CORE_LTC_XTS := $(CFG_CRYPTO_XTS) 230_CFG_CORE_LTC_CCM := $(CFG_CRYPTO_CCM) 231_CFG_CORE_LTC_AES_DESC := $(call cfg-one-enabled, CFG_CRYPTO_XTS CFG_CRYPTO_CCM) 232_CFG_CORE_LTC_X25519 := $(CFG_CRYPTO_X25519) 233_CFG_CORE_LTC_ED25519 := $(CFG_CRYPTO_ED25519) 234_CFG_CORE_LTC_SHA3_224 := $(CFG_CRYPTO_SHA3_224) 235_CFG_CORE_LTC_SHA3_256 := $(CFG_CRYPTO_SHA3_256) 236_CFG_CORE_LTC_SHA3_384 := $(CFG_CRYPTO_SHA3_384) 237_CFG_CORE_LTC_SHA3_512 := $(CFG_CRYPTO_SHA3_512) 238_CFG_CORE_LTC_SHAKE128 := $(CFG_CRYPTO_SHAKE128) 239_CFG_CORE_LTC_SHAKE256 := $(CFG_CRYPTO_SHAKE256) 240endif 241 242############################################################### 243# libtomcrypt (LTC) specifics, phase #2 244############################################################### 245 246_CFG_CORE_LTC_SHA256_DESC := $(call cfg-one-enabled, _CFG_CORE_LTC_SHA256_DESC \ 247 _CFG_CORE_LTC_SHA224 \ 248 _CFG_CORE_LTC_SHA256) 249_CFG_CORE_LTC_SHA384_DESC := $(call cfg-one-enabled, _CFG_CORE_LTC_SHA384_DESC \ 250 _CFG_CORE_LTC_SHA384) 251_CFG_CORE_LTC_SHA512_DESC := $(call cfg-one-enabled, _CFG_CORE_LTC_SHA512_DESC \ 252 _CFG_CORE_LTC_SHA512_256 \ 253 _CFG_CORE_LTC_SHA512) 254_CFG_CORE_LTC_AES_DESC := $(call cfg-one-enabled, _CFG_CORE_LTC_AES_DESC \ 255 _CFG_CORE_LTC_AES) 256 257_CFG_CORE_LTC_SHA3_DESC := $(call cfg-one-enabled, _CFG_CORE_LTC_SHA3_224 \ 258 _CFG_CORE_LTC_SHA3_256 _CFG_CORE_LTC_SHA3_384 \ 259 _CFG_CORE_LTC_SHA3_512 _CFG_CORE_LTC_SHAKE128 \ 260 _CFG_CORE_LTC_SHAKE256) 261 262# Assign system variables 263_CFG_CORE_LTC_CE := $(CFG_CRYPTO_WITH_CE) 264_CFG_CORE_LTC_VFP := $(CFG_WITH_VFP) 265_CFG_CORE_LTC_BIGNUM_MAX_BITS := $(CFG_CORE_BIGNUM_MAX_BITS) 266_CFG_CORE_LTC_PAGER := $(CFG_WITH_PAGER) 267ifneq ($(CFG_NUM_THREADS),1) 268_CFG_CORE_LTC_OPTEE_THREAD := y 269else 270_CFG_CORE_LTC_OPTEE_THREAD := n 271endif 272_CFG_CORE_LTC_HWSUPP_PMULL := $(CFG_HWSUPP_PMULL) 273 274# Assign aggregated variables 275ltc-one-enabled = $(call cfg-one-enabled,$(foreach v,$(1),_CFG_CORE_LTC_$(v))) 276_CFG_CORE_LTC_ACIPHER := $(call ltc-one-enabled, RSA DSA DH ECC) 277_CFG_CORE_LTC_AUTHENC := $(and $(filter y,$(_CFG_CORE_LTC_AES_DESC)), \ 278 $(filter y,$(call ltc-one-enabled, CCM GCM))) 279_CFG_CORE_LTC_CIPHER := $(call ltc-one-enabled, AES_DESC DES) 280_CFG_CORE_LTC_HASH := $(call ltc-one-enabled, MD5 SHA1 SHA224 SHA256 SHA384 \ 281 SHA512 SHA3_224 SHA3_256 \ 282 SHA3_384 SHA3_512) 283ifeq ($(CFG_CRYPTO_HMAC),y) 284_CFG_CORE_LTC_HMAC := $(call ltc-one-enabled, MD5 SHA1 SHA224 SHA256 SHA384 \ 285 SHA512 SHA3_224 SHA3_256 \ 286 SHA3_384 SHA3_512) 287endif 288 289_CFG_CORE_LTC_MAC := $(call ltc-one-enabled, HMAC CMAC CBC_MAC) 290_CFG_CORE_LTC_CBC := $(call ltc-one-enabled, CBC CBC_MAC) 291_CFG_CORE_LTC_ASN1 := $(call ltc-one-enabled, RSA DSA ECC) 292_CFG_CORE_LTC_EC25519 := $(call ltc-one-enabled, ED25519 X25519) 293 294# Enable TEE_ALG_RSASSA_PKCS1_V1_5 algorithm for signing with PKCS#1 v1.5 EMSA 295# without ASN.1 around the hash. 296ifeq ($(CFG_CRYPTOLIB_NAME),tomcrypt) 297CFG_CRYPTO_RSASSA_NA1 ?= y 298endif 299