xref: /optee_os/core/crypto.mk (revision bfedef0ce2d8851799a8b4075cf6a344ac159d27) 
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,$(CFG_CRYPTO))
8
9# Ciphers
10CFG_CRYPTO_AES ?= y
11CFG_CRYPTO_DES ?= y
12CFG_CRYPTO_SM4 ?= y
13
14# Cipher block modes
15CFG_CRYPTO_ECB ?= y
16CFG_CRYPTO_CBC ?= y
17CFG_CRYPTO_CTR ?= y
18CFG_CRYPTO_CTS ?= y
19CFG_CRYPTO_XTS ?= y
20
21# Message authentication codes
22CFG_CRYPTO_HMAC ?= y
23CFG_CRYPTO_CMAC ?= y
24CFG_CRYPTO_CBC_MAC ?= y
25# Instead of calling the AES CBC encryption function for each 16 byte block of
26# input, bundle a maximum of N blocks when possible. A maximum of N*16 bytes of
27# temporary data are allocated on the heap.
28# Minimum value is 1.
29CFG_CRYPTO_CBC_MAC_BUNDLE_BLOCKS ?= 64
30
31# Hashes
32CFG_CRYPTO_MD5 ?= y
33CFG_CRYPTO_SHA1 ?= y
34CFG_CRYPTO_SHA224 ?= y
35CFG_CRYPTO_SHA256 ?= y
36CFG_CRYPTO_SHA384 ?= y
37CFG_CRYPTO_SHA512 ?= y
38CFG_CRYPTO_SHA512_256 ?= y
39CFG_CRYPTO_SM3 ?= y
40CFG_CRYPTO_SHA3_224 ?= y
41CFG_CRYPTO_SHA3_256 ?= y
42CFG_CRYPTO_SHA3_384 ?= y
43CFG_CRYPTO_SHA3_512 ?= y
44
45# Extendable-Output Functions (XOF)
46CFG_CRYPTO_SHAKE128 ?= y
47CFG_CRYPTO_SHAKE256 ?= y
48
49# Asymmetric ciphers
50CFG_CRYPTO_DSA ?= y
51CFG_CRYPTO_RSA ?= y
52CFG_CRYPTO_DH ?= y
53# ECC includes ECDSA and ECDH
54CFG_CRYPTO_ECC ?= y
55CFG_CRYPTO_SM2_PKE ?= y
56CFG_CRYPTO_SM2_DSA ?= y
57CFG_CRYPTO_SM2_KEP ?= y
58CFG_CRYPTO_ED25519 ?= y
59CFG_CRYPTO_X25519 ?= y
60
61# Authenticated encryption
62CFG_CRYPTO_CCM ?= y
63CFG_CRYPTO_GCM ?= y
64# Default uses the OP-TEE internal AES-GCM implementation
65CFG_CRYPTO_AES_GCM_FROM_CRYPTOLIB ?= n
66
67endif
68
69ifeq ($(CFG_WITH_PAGER),y)
70ifneq ($(CFG_CRYPTO_SHA256),y)
71$(warning Warning: Enabling CFG_CRYPTO_SHA256 [required by CFG_WITH_PAGER])
72CFG_CRYPTO_SHA256:=y
73endif
74endif
75
76$(eval $(call cryp-enable-all-depends,CFG_WITH_SOFTWARE_PRNG, AES ECB SHA256))
77
78ifeq ($(CFG_CRYPTO_WITH_CE82),y)
79$(call force,CFG_CRYPTO_WITH_CE,y,required with CFG_CRYPTO_WITH_CE82)
80CFG_CRYPTO_SHA512_ARM_CE ?= $(CFG_CRYPTO_SHA512)
81CFG_CORE_CRYPTO_SHA512_ACCEL ?= $(CFG_CRYPTO_SHA512_ARM_CE)
82CFG_CRYPTO_SHA3_ARM_CE ?= $(call cfg-one-enabled, CFG_CRYPTO_SHA3_224 \
83			    CFG_CRYPTO_SHA3_256 CFG_CRYPTO_SHA3_384 \
84			    CFG_CRYPTO_SHA3_512 CFG_CRYPTO_SHAKE256)
85CFG_CORE_CRYPTO_SHA3_ACCEL ?= $(CFG_CRYPTO_SHA3_ARM_CE)
86CFG_CRYPTO_SM3_ARM_CE ?= $(CFG_CRYPTO_SM3)
87CFG_CORE_CRYPTO_SM3_ACCEL ?= $(CFG_CRYPTO_SM3_ARM_CE)
88
89# CFG_CRYPTO_SM4_ARM_CE defines whether we use SM4E to optimize SM4
90CFG_CRYPTO_SM4_ARM_CE ?= $(CFG_CRYPTO_SM4)
91CFG_CORE_CRYPTO_SM4_ACCEL ?= $(CFG_CRYPTO_SM4_ARM_CE)
92endif
93
94ifeq ($(CFG_CRYPTO_WITH_CE),y)
95
96$(call force,CFG_AES_GCM_TABLE_BASED,n,conflicts with CFG_CRYPTO_WITH_CE)
97
98# CFG_HWSUPP_PMULT_64 defines whether the CPU supports polynomial multiplies
99# of 64-bit values (Aarch64: PMULL/PMULL2 with the 1Q specifier; Aarch32:
100# VMULL.P64). These operations are part of the Cryptographic Extensions, so
101# assume they are implicitly contained in CFG_CRYPTO_WITH_CE=y.
102CFG_HWSUPP_PMULT_64 ?= y
103
104CFG_CRYPTO_SHA256_ARM_CE ?= $(CFG_CRYPTO_SHA256)
105CFG_CORE_CRYPTO_SHA256_ACCEL ?= $(CFG_CRYPTO_SHA256_ARM_CE)
106CFG_CRYPTO_SHA1_ARM_CE ?= $(CFG_CRYPTO_SHA1)
107CFG_CORE_CRYPTO_SHA1_ACCEL ?= $(CFG_CRYPTO_SHA1_ARM_CE)
108CFG_CRYPTO_AES_ARM_CE ?= $(CFG_CRYPTO_AES)
109CFG_CORE_CRYPTO_AES_ACCEL ?= $(CFG_CRYPTO_AES_ARM_CE)
110
111# CFG_CRYPTO_SM4_ARM_AESE defines whether we use AESE to optimize SM4
112CFG_CRYPTO_SM4_ARM_AESE ?= $(CFG_CRYPTO_SM4)
113CFG_CORE_CRYPTO_SM4_ACCEL ?= $(CFG_CRYPTO_SM4_ARM_AESE)
114else #CFG_CRYPTO_WITH_CE
115
116CFG_AES_GCM_TABLE_BASED ?= y
117
118endif #!CFG_CRYPTO_WITH_CE
119
120
121# Cryptographic extensions can only be used safely when OP-TEE knows how to
122# preserve the VFP context
123ifeq ($(CFG_CRYPTO_SHA256_ARM32_CE),y)
124$(call force,CFG_WITH_VFP,y,required by CFG_CRYPTO_SHA256_ARM32_CE)
125endif
126ifeq ($(CFG_CRYPTO_SHA256_ARM64_CE),y)
127$(call force,CFG_WITH_VFP,y,required by CFG_CRYPTO_SHA256_ARM64_CE)
128endif
129ifeq ($(CFG_CRYPTO_SHA1_ARM_CE),y)
130$(call force,CFG_WITH_VFP,y,required by CFG_CRYPTO_SHA1_ARM_CE)
131endif
132ifeq ($(CFG_CRYPTO_AES_ARM_CE),y)
133$(call force,CFG_WITH_VFP,y,required by CFG_CRYPTO_AES_ARM_CE)
134endif
135ifeq ($(CFG_CORE_CRYPTO_SM4_ACCEL),y)
136$(call force,CFG_WITH_VFP,y,required by CFG_CORE_CRYPTO_SM4_ACCEL)
137endif
138cryp-enable-all-depends = $(call cfg-enable-all-depends,$(strip $(1)),$(foreach v,$(2),CFG_CRYPTO_$(v)))
139$(eval $(call cryp-enable-all-depends,CFG_REE_FS, AES ECB CTR HMAC SHA256 GCM))
140$(eval $(call cryp-enable-all-depends,CFG_RPMB_FS, AES ECB CTR HMAC SHA256 GCM))
141
142# Dependency checks: warn and disable some features if dependencies are not met
143
144cryp-dep-one = $(call cfg-depends-one,CFG_CRYPTO_$(strip $(1)),$(patsubst %, CFG_CRYPTO_%,$(strip $(2))))
145cryp-dep-all = $(call cfg-depends-all,CFG_CRYPTO_$(strip $(1)),$(patsubst %, CFG_CRYPTO_%,$(strip $(2))))
146
147$(eval $(call cryp-dep-one, ECB, AES DES))
148$(eval $(call cryp-dep-one, CBC, AES DES))
149$(eval $(call cryp-dep-one, CTR, AES))
150# CTS is implemented with ECB and CBC
151$(eval $(call cryp-dep-all, CTS, AES ECB CBC))
152$(eval $(call cryp-dep-one, XTS, AES))
153$(eval $(call cryp-dep-one, HMAC, AES DES))
154$(eval $(call cryp-dep-one, HMAC, MD5 SHA1 SHA224 SHA256 SHA384 SHA512))
155$(eval $(call cryp-dep-one, CMAC, AES))
156$(eval $(call cryp-dep-one, CBC_MAC, AES DES))
157$(eval $(call cryp-dep-one, CCM, AES))
158$(eval $(call cryp-dep-one, GCM, AES))
159# If no AES cipher mode is left, disable AES
160$(eval $(call cryp-dep-one, AES, ECB CBC CTR CTS XTS))
161# If no DES cipher mode is left, disable DES
162$(eval $(call cryp-dep-one, DES, ECB CBC))
163# SM2 is Elliptic Curve Cryptography, it uses some generic ECC functions
164$(eval $(call cryp-dep-one, SM2_PKE, ECC))
165$(eval $(call cryp-dep-one, SM2_DSA, ECC))
166$(eval $(call cryp-dep-one, SM2_KEP, ECC))
167
168###############################################################
169# libtomcrypt (LTC) specifics, phase #1
170# LTC is only configured via _CFG_CORE_LTC_ prefixed variables
171#
172# _CFG_CORE_LTC_xxx_DESC means that LTC will only register the
173# descriptor of the algorithm, not provide a
174# crypt_xxx_alloc_ctx() function.
175###############################################################
176
177# If LTC is the cryptolib, pull configuration from CFG_CRYPTO_xxx
178ifeq ($(CFG_CRYPTOLIB_NAME),tomcrypt)
179# dsa_make_params() needs all three SHA-2 algorithms.
180# Disable DSA if any is missing.
181$(eval $(call cryp-dep-all, DSA, SHA256 SHA384 SHA512))
182
183# Assign _CFG_CORE_LTC_xxx based on CFG_CRYPTO_yyy
184core-ltc-vars = AES DES
185core-ltc-vars += ECB CBC CTR CTS XTS
186core-ltc-vars += MD5 SHA1 SHA224 SHA256 SHA384 SHA512 SHA512_256
187core-ltc-vars += SHA3_224 SHA3_256 SHA3_384 SHA3_512 SHAKE128 SHAKE256
188core-ltc-vars += HMAC CMAC CBC_MAC
189core-ltc-vars += CCM
190ifeq ($(CFG_CRYPTO_AES_GCM_FROM_CRYPTOLIB),y)
191core-ltc-vars += GCM
192endif
193core-ltc-vars += RSA DSA DH ECC
194core-ltc-vars += SIZE_OPTIMIZATION
195core-ltc-vars += SM2_PKE
196core-ltc-vars += SM2_DSA
197core-ltc-vars += SM2_KEP
198core-ltc-vars += ED25519 X25519
199# Assigned selected CFG_CRYPTO_xxx as _CFG_CORE_LTC_xxx
200$(foreach v, $(core-ltc-vars), $(eval _CFG_CORE_LTC_$(v) := $(CFG_CRYPTO_$(v))))
201_CFG_CORE_LTC_MPI := $(CFG_CORE_MBEDTLS_MPI)
202_CFG_CORE_LTC_AES_ACCEL := $(CFG_CORE_CRYPTO_AES_ACCEL)
203_CFG_CORE_LTC_SHA1_ACCEL := $(CFG_CORE_CRYPTO_SHA1_ACCEL)
204_CFG_CORE_LTC_SHA256_ACCEL := $(CFG_CORE_CRYPTO_SHA256_ACCEL)
205_CFG_CORE_LTC_SHA512_ACCEL := $(CFG_CORE_CRYPTO_SHA512_ACCEL)
206endif
207
208###############################################################
209# mbedtls specifics
210###############################################################
211
212ifeq ($(CFG_CRYPTOLIB_NAME),mbedtls)
213# mbedtls has to be complemented with some algorithms by LTC
214# Specify the algorithms here
215_CFG_CORE_LTC_DSA := $(CFG_CRYPTO_DSA)
216_CFG_CORE_LTC_MPI := $(CFG_CRYPTO_DSA)
217_CFG_CORE_LTC_SHA256_DESC := $(CFG_CRYPTO_DSA)
218_CFG_CORE_LTC_SHA384_DESC := $(CFG_CRYPTO_DSA)
219_CFG_CORE_LTC_SHA512_DESC := $(CFG_CRYPTO_DSA)
220_CFG_CORE_LTC_XTS := $(CFG_CRYPTO_XTS)
221_CFG_CORE_LTC_CCM := $(CFG_CRYPTO_CCM)
222_CFG_CORE_LTC_AES_DESC := $(call cfg-one-enabled, CFG_CRYPTO_XTS CFG_CRYPTO_CCM)
223_CFG_CORE_LTC_X25519 := $(CFG_CRYPTO_X25519)
224_CFG_CORE_LTC_ED25519 := $(CFG_CRYPTO_ED25519)
225_CFG_CORE_LTC_SHA3_224 := $(CFG_CRYPTO_SHA3_224)
226_CFG_CORE_LTC_SHA3_256 := $(CFG_CRYPTO_SHA3_256)
227_CFG_CORE_LTC_SHA3_384 := $(CFG_CRYPTO_SHA3_384)
228_CFG_CORE_LTC_SHA3_512 := $(CFG_CRYPTO_SHA3_512)
229_CFG_CORE_LTC_SHAKE128 := $(CFG_CRYPTO_SHAKE128)
230_CFG_CORE_LTC_SHAKE256 := $(CFG_CRYPTO_SHAKE256)
231_CFG_CORE_LTC_HMAC := $(call cfg-one-enabled, _CFG_CORE_LTC_SHA3_224 \
232			_CFG_CORE_LTC_SHA3_256 _CFG_CORE_LTC_SHA3_384 \
233			_CFG_CORE_LTC_SHA3_512)
234endif
235
236###############################################################
237# libtomcrypt (LTC) specifics, phase #2
238###############################################################
239
240_CFG_CORE_LTC_SHA256_DESC := $(call cfg-one-enabled, _CFG_CORE_LTC_SHA256_DESC \
241						     _CFG_CORE_LTC_SHA224 \
242						     _CFG_CORE_LTC_SHA256)
243_CFG_CORE_LTC_SHA384_DESC := $(call cfg-one-enabled, _CFG_CORE_LTC_SHA384_DESC \
244						     _CFG_CORE_LTC_SHA384)
245_CFG_CORE_LTC_SHA512_DESC := $(call cfg-one-enabled, _CFG_CORE_LTC_SHA512_DESC \
246						     _CFG_CORE_LTC_SHA512_256 \
247						     _CFG_CORE_LTC_SHA512)
248_CFG_CORE_LTC_AES_DESC := $(call cfg-one-enabled, _CFG_CORE_LTC_AES_DESC \
249						  _CFG_CORE_LTC_AES)
250
251_CFG_CORE_LTC_SHA3 := $(call cfg-one-enabled, _CFG_CORE_LTC_SHA3_224 \
252			_CFG_CORE_LTC_SHA3_256 _CFG_CORE_LTC_SHA3_384 \
253			_CFG_CORE_LTC_SHA3_512 _CFG_CORE_LTC_SHAKE128 \
254			_CFG_CORE_LTC_SHAKE256)
255
256# Assign system variables
257_CFG_CORE_LTC_CE := $(CFG_CRYPTO_WITH_CE)
258_CFG_CORE_LTC_VFP := $(CFG_WITH_VFP)
259_CFG_CORE_LTC_BIGNUM_MAX_BITS := $(CFG_CORE_BIGNUM_MAX_BITS)
260_CFG_CORE_LTC_PAGER := $(CFG_WITH_PAGER)
261ifneq ($(CFG_NUM_THREADS),1)
262_CFG_CORE_LTC_OPTEE_THREAD := y
263else
264_CFG_CORE_LTC_OPTEE_THREAD := n
265endif
266_CFG_CORE_LTC_HWSUPP_PMULL := $(CFG_HWSUPP_PMULL)
267
268# Assign aggregated variables
269ltc-one-enabled = $(call cfg-one-enabled,$(foreach v,$(1),_CFG_CORE_LTC_$(v)))
270_CFG_CORE_LTC_ACIPHER := $(call ltc-one-enabled, RSA DSA DH ECC)
271_CFG_CORE_LTC_AUTHENC := $(and $(filter y,$(_CFG_CORE_LTC_AES_DESC)), \
272			       $(filter y,$(call ltc-one-enabled, CCM GCM)))
273_CFG_CORE_LTC_CIPHER := $(call ltc-one-enabled, AES_DESC DES)
274_CFG_CORE_LTC_HASH := $(call ltc-one-enabled, MD5 SHA1 SHA224 SHA256 SHA384 \
275					      SHA512 SHA3_224 SHA3_256 \
276					      SHA3_384 SHA3_512)
277_CFG_CORE_LTC_MAC := $(call ltc-one-enabled, HMAC CMAC CBC_MAC)
278_CFG_CORE_LTC_CBC := $(call ltc-one-enabled, CBC CBC_MAC)
279_CFG_CORE_LTC_ASN1 := $(call ltc-one-enabled, RSA DSA ECC)
280_CFG_CORE_LTC_EC25519 := $(call ltc-one-enabled, ED25519 X25519)
281
282###############################################################
283# Platform independent crypto-driver configuration
284###############################################################
285CRYPTO_MAKEFILES := $(sort $(wildcard core/drivers/crypto/*/crypto.mk))
286include $(CRYPTO_MAKEFILES)
287
288# Enable TEE_ALG_RSASSA_PKCS1_V1_5 algorithm for signing with PKCS#1 v1.5 EMSA
289# without ASN.1 around the hash.
290ifeq ($(CFG_CRYPTOLIB_NAME),tomcrypt)
291CFG_CRYPTO_RSASSA_NA1 ?= y
292endif
293