xref: /optee_os/core/crypto.mk (revision 8b5fb12e2fdef8168274f7efe616eb4f6529ba25) 
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_SM3_ARM_CE ?= $(CFG_CRYPTO_SM3)
83CFG_CORE_CRYPTO_SM3_ACCEL ?= $(CFG_CRYPTO_SM3_ARM_CE)
84endif
85
86ifeq ($(CFG_CRYPTO_WITH_CE),y)
87
88$(call force,CFG_AES_GCM_TABLE_BASED,n,conflicts with CFG_CRYPTO_WITH_CE)
89
90# CFG_HWSUPP_PMULT_64 defines whether the CPU supports polynomial multiplies
91# of 64-bit values (Aarch64: PMULL/PMULL2 with the 1Q specifier; Aarch32:
92# VMULL.P64). These operations are part of the Cryptographic Extensions, so
93# assume they are implicitly contained in CFG_CRYPTO_WITH_CE=y.
94CFG_HWSUPP_PMULT_64 ?= y
95
96CFG_CRYPTO_SHA256_ARM_CE ?= $(CFG_CRYPTO_SHA256)
97CFG_CORE_CRYPTO_SHA256_ACCEL ?= $(CFG_CRYPTO_SHA256_ARM_CE)
98CFG_CRYPTO_SHA1_ARM_CE ?= $(CFG_CRYPTO_SHA1)
99CFG_CORE_CRYPTO_SHA1_ACCEL ?= $(CFG_CRYPTO_SHA1_ARM_CE)
100CFG_CRYPTO_AES_ARM_CE ?= $(CFG_CRYPTO_AES)
101CFG_CORE_CRYPTO_AES_ACCEL ?= $(CFG_CRYPTO_AES_ARM_CE)
102
103# CFG_CRYPTO_SM4_ARM_AESE defines whether we use AESE to optimize SM4
104CFG_CRYPTO_SM4_ARM_AESE ?= $(CFG_CRYPTO_SM4)
105CFG_CORE_CRYPTO_SM4_ACCEL ?= $(CFG_CRYPTO_SM4_ARM_AESE)
106else #CFG_CRYPTO_WITH_CE
107
108CFG_AES_GCM_TABLE_BASED ?= y
109
110endif #!CFG_CRYPTO_WITH_CE
111
112
113# Cryptographic extensions can only be used safely when OP-TEE knows how to
114# preserve the VFP context
115ifeq ($(CFG_CRYPTO_SHA256_ARM32_CE),y)
116$(call force,CFG_WITH_VFP,y,required by CFG_CRYPTO_SHA256_ARM32_CE)
117endif
118ifeq ($(CFG_CRYPTO_SHA256_ARM64_CE),y)
119$(call force,CFG_WITH_VFP,y,required by CFG_CRYPTO_SHA256_ARM64_CE)
120endif
121ifeq ($(CFG_CRYPTO_SHA1_ARM_CE),y)
122$(call force,CFG_WITH_VFP,y,required by CFG_CRYPTO_SHA1_ARM_CE)
123endif
124ifeq ($(CFG_CRYPTO_AES_ARM_CE),y)
125$(call force,CFG_WITH_VFP,y,required by CFG_CRYPTO_AES_ARM_CE)
126endif
127ifeq ($(CFG_CORE_CRYPTO_SM4_ACCEL),y)
128$(call force,CFG_WITH_VFP,y,required by CFG_CORE_CRYPTO_SM4_ACCEL)
129endif
130cryp-enable-all-depends = $(call cfg-enable-all-depends,$(strip $(1)),$(foreach v,$(2),CFG_CRYPTO_$(v)))
131$(eval $(call cryp-enable-all-depends,CFG_REE_FS, AES ECB CTR HMAC SHA256 GCM))
132$(eval $(call cryp-enable-all-depends,CFG_RPMB_FS, AES ECB CTR HMAC SHA256 GCM))
133
134# Dependency checks: warn and disable some features if dependencies are not met
135
136cryp-dep-one = $(call cfg-depends-one,CFG_CRYPTO_$(strip $(1)),$(patsubst %, CFG_CRYPTO_%,$(strip $(2))))
137cryp-dep-all = $(call cfg-depends-all,CFG_CRYPTO_$(strip $(1)),$(patsubst %, CFG_CRYPTO_%,$(strip $(2))))
138
139$(eval $(call cryp-dep-one, ECB, AES DES))
140$(eval $(call cryp-dep-one, CBC, AES DES))
141$(eval $(call cryp-dep-one, CTR, AES))
142# CTS is implemented with ECB and CBC
143$(eval $(call cryp-dep-all, CTS, AES ECB CBC))
144$(eval $(call cryp-dep-one, XTS, AES))
145$(eval $(call cryp-dep-one, HMAC, AES DES))
146$(eval $(call cryp-dep-one, HMAC, MD5 SHA1 SHA224 SHA256 SHA384 SHA512))
147$(eval $(call cryp-dep-one, CMAC, AES))
148$(eval $(call cryp-dep-one, CBC_MAC, AES DES))
149$(eval $(call cryp-dep-one, CCM, AES))
150$(eval $(call cryp-dep-one, GCM, AES))
151# If no AES cipher mode is left, disable AES
152$(eval $(call cryp-dep-one, AES, ECB CBC CTR CTS XTS))
153# If no DES cipher mode is left, disable DES
154$(eval $(call cryp-dep-one, DES, ECB CBC))
155# SM2 is Elliptic Curve Cryptography, it uses some generic ECC functions
156$(eval $(call cryp-dep-one, SM2_PKE, ECC))
157$(eval $(call cryp-dep-one, SM2_DSA, ECC))
158$(eval $(call cryp-dep-one, SM2_KEP, ECC))
159
160###############################################################
161# libtomcrypt (LTC) specifics, phase #1
162# LTC is only configured via _CFG_CORE_LTC_ prefixed variables
163#
164# _CFG_CORE_LTC_xxx_DESC means that LTC will only register the
165# descriptor of the algorithm, not provide a
166# crypt_xxx_alloc_ctx() function.
167###############################################################
168
169# If LTC is the cryptolib, pull configuration from CFG_CRYPTO_xxx
170ifeq ($(CFG_CRYPTOLIB_NAME),tomcrypt)
171# dsa_make_params() needs all three SHA-2 algorithms.
172# Disable DSA if any is missing.
173$(eval $(call cryp-dep-all, DSA, SHA256 SHA384 SHA512))
174
175# Assign _CFG_CORE_LTC_xxx based on CFG_CRYPTO_yyy
176core-ltc-vars = AES DES
177core-ltc-vars += ECB CBC CTR CTS XTS
178core-ltc-vars += MD5 SHA1 SHA224 SHA256 SHA384 SHA512 SHA512_256
179core-ltc-vars += SHA3_224 SHA3_256 SHA3_384 SHA3_512 SHAKE128 SHAKE256
180core-ltc-vars += HMAC CMAC CBC_MAC
181core-ltc-vars += CCM
182ifeq ($(CFG_CRYPTO_AES_GCM_FROM_CRYPTOLIB),y)
183core-ltc-vars += GCM
184endif
185core-ltc-vars += RSA DSA DH ECC
186core-ltc-vars += SIZE_OPTIMIZATION
187core-ltc-vars += SM2_PKE
188core-ltc-vars += SM2_DSA
189core-ltc-vars += SM2_KEP
190core-ltc-vars += ED25519 X25519
191# Assigned selected CFG_CRYPTO_xxx as _CFG_CORE_LTC_xxx
192$(foreach v, $(core-ltc-vars), $(eval _CFG_CORE_LTC_$(v) := $(CFG_CRYPTO_$(v))))
193_CFG_CORE_LTC_MPI := $(CFG_CORE_MBEDTLS_MPI)
194_CFG_CORE_LTC_AES_ACCEL := $(CFG_CORE_CRYPTO_AES_ACCEL)
195_CFG_CORE_LTC_SHA1_ACCEL := $(CFG_CORE_CRYPTO_SHA1_ACCEL)
196_CFG_CORE_LTC_SHA256_ACCEL := $(CFG_CORE_CRYPTO_SHA256_ACCEL)
197_CFG_CORE_LTC_SHA512_ACCEL := $(CFG_CORE_CRYPTO_SHA512_ACCEL)
198endif
199
200###############################################################
201# mbedtls specifics
202###############################################################
203
204ifeq ($(CFG_CRYPTOLIB_NAME),mbedtls)
205# mbedtls has to be complemented with some algorithms by LTC
206# Specify the algorithms here
207_CFG_CORE_LTC_DSA := $(CFG_CRYPTO_DSA)
208_CFG_CORE_LTC_MPI := $(CFG_CRYPTO_DSA)
209_CFG_CORE_LTC_SHA256_DESC := $(CFG_CRYPTO_DSA)
210_CFG_CORE_LTC_SHA384_DESC := $(CFG_CRYPTO_DSA)
211_CFG_CORE_LTC_SHA512_DESC := $(CFG_CRYPTO_DSA)
212_CFG_CORE_LTC_XTS := $(CFG_CRYPTO_XTS)
213_CFG_CORE_LTC_CCM := $(CFG_CRYPTO_CCM)
214_CFG_CORE_LTC_AES_DESC := $(call cfg-one-enabled, CFG_CRYPTO_XTS CFG_CRYPTO_CCM)
215_CFG_CORE_LTC_X25519 := $(CFG_CRYPTO_X25519)
216_CFG_CORE_LTC_ED25519 := $(CFG_CRYPTO_ED25519)
217_CFG_CORE_LTC_SHA3_224 := $(CFG_CRYPTO_SHA3_224)
218_CFG_CORE_LTC_SHA3_256 := $(CFG_CRYPTO_SHA3_256)
219_CFG_CORE_LTC_SHA3_384 := $(CFG_CRYPTO_SHA3_384)
220_CFG_CORE_LTC_SHA3_512 := $(CFG_CRYPTO_SHA3_512)
221_CFG_CORE_LTC_SHAKE128 := $(CFG_CRYPTO_SHAKE128)
222_CFG_CORE_LTC_SHAKE256 := $(CFG_CRYPTO_SHAKE256)
223_CFG_CORE_LTC_HMAC := $(call cfg-one-enabled, _CFG_CORE_LTC_SHA3_224 \
224			_CFG_CORE_LTC_SHA3_256 _CFG_CORE_LTC_SHA3_384 \
225			_CFG_CORE_LTC_SHA3_512)
226endif
227
228###############################################################
229# libtomcrypt (LTC) specifics, phase #2
230###############################################################
231
232_CFG_CORE_LTC_SHA256_DESC := $(call cfg-one-enabled, _CFG_CORE_LTC_SHA256_DESC \
233						     _CFG_CORE_LTC_SHA224 \
234						     _CFG_CORE_LTC_SHA256)
235_CFG_CORE_LTC_SHA384_DESC := $(call cfg-one-enabled, _CFG_CORE_LTC_SHA384_DESC \
236						     _CFG_CORE_LTC_SHA384)
237_CFG_CORE_LTC_SHA512_DESC := $(call cfg-one-enabled, _CFG_CORE_LTC_SHA512_DESC \
238						     _CFG_CORE_LTC_SHA512_256 \
239						     _CFG_CORE_LTC_SHA512)
240_CFG_CORE_LTC_AES_DESC := $(call cfg-one-enabled, _CFG_CORE_LTC_AES_DESC \
241						  _CFG_CORE_LTC_AES)
242
243_CFG_CORE_LTC_SHA3 := $(call cfg-one-enabled, _CFG_CORE_LTC_SHA3_224 \
244			_CFG_CORE_LTC_SHA3_256 _CFG_CORE_LTC_SHA3_384 \
245			_CFG_CORE_LTC_SHA3_512 _CFG_CORE_LTC_SHAKE128 \
246			_CFG_CORE_LTC_SHAKE256)
247
248# Assign system variables
249_CFG_CORE_LTC_CE := $(CFG_CRYPTO_WITH_CE)
250_CFG_CORE_LTC_VFP := $(CFG_WITH_VFP)
251_CFG_CORE_LTC_BIGNUM_MAX_BITS := $(CFG_CORE_BIGNUM_MAX_BITS)
252_CFG_CORE_LTC_PAGER := $(CFG_WITH_PAGER)
253ifneq ($(CFG_NUM_THREADS),1)
254_CFG_CORE_LTC_OPTEE_THREAD := y
255else
256_CFG_CORE_LTC_OPTEE_THREAD := n
257endif
258_CFG_CORE_LTC_HWSUPP_PMULL := $(CFG_HWSUPP_PMULL)
259
260# Assign aggregated variables
261ltc-one-enabled = $(call cfg-one-enabled,$(foreach v,$(1),_CFG_CORE_LTC_$(v)))
262_CFG_CORE_LTC_ACIPHER := $(call ltc-one-enabled, RSA DSA DH ECC)
263_CFG_CORE_LTC_AUTHENC := $(and $(filter y,$(_CFG_CORE_LTC_AES_DESC)), \
264			       $(filter y,$(call ltc-one-enabled, CCM GCM)))
265_CFG_CORE_LTC_CIPHER := $(call ltc-one-enabled, AES_DESC DES)
266_CFG_CORE_LTC_HASH := $(call ltc-one-enabled, MD5 SHA1 SHA224 SHA256 SHA384 \
267					      SHA512 SHA3_224 SHA3_256 \
268					      SHA3_384 SHA3_512)
269_CFG_CORE_LTC_MAC := $(call ltc-one-enabled, HMAC CMAC CBC_MAC)
270_CFG_CORE_LTC_CBC := $(call ltc-one-enabled, CBC CBC_MAC)
271_CFG_CORE_LTC_ASN1 := $(call ltc-one-enabled, RSA DSA ECC)
272_CFG_CORE_LTC_EC25519 := $(call ltc-one-enabled, ED25519 X25519)
273
274###############################################################
275# Platform independent crypto-driver configuration
276###############################################################
277CRYPTO_MAKEFILES := $(sort $(wildcard core/drivers/crypto/*/crypto.mk))
278include $(CRYPTO_MAKEFILES)
279
280# Enable TEE_ALG_RSASSA_PKCS1_V1_5 algorithm for signing with PKCS#1 v1.5 EMSA
281# without ASN.1 around the hash.
282ifeq ($(CFG_CRYPTOLIB_NAME),tomcrypt)
283CFG_CRYPTO_RSASSA_NA1 ?= y
284endif
285