xref: /optee_os/core/crypto.mk (revision 1478437e65c44163f7c96f8a4c5d1532a9312bc3) 
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_SHAKE128 \
85			    CFG_CRYPTO_SHAKE256)
86CFG_CORE_CRYPTO_SHA3_ACCEL ?= $(CFG_CRYPTO_SHA3_ARM_CE)
87CFG_CRYPTO_SM3_ARM_CE ?= $(CFG_CRYPTO_SM3)
88CFG_CORE_CRYPTO_SM3_ACCEL ?= $(CFG_CRYPTO_SM3_ARM_CE)
89
90# CFG_CRYPTO_SM4_ARM_CE defines whether we use SM4E to optimize SM4
91CFG_CRYPTO_SM4_ARM_CE ?= $(CFG_CRYPTO_SM4)
92CFG_CORE_CRYPTO_SM4_ACCEL ?= $(CFG_CRYPTO_SM4_ARM_CE)
93endif
94
95ifeq ($(CFG_CRYPTO_WITH_CE),y)
96
97$(call force,CFG_AES_GCM_TABLE_BASED,n,conflicts with CFG_CRYPTO_WITH_CE)
98
99# CFG_HWSUPP_PMULT_64 defines whether the CPU supports polynomial multiplies
100# of 64-bit values (Aarch64: PMULL/PMULL2 with the 1Q specifier; Aarch32:
101# VMULL.P64). These operations are part of the Cryptographic Extensions, so
102# assume they are implicitly contained in CFG_CRYPTO_WITH_CE=y.
103CFG_HWSUPP_PMULT_64 ?= y
104
105CFG_CRYPTO_SHA256_ARM_CE ?= $(CFG_CRYPTO_SHA256)
106CFG_CORE_CRYPTO_SHA256_ACCEL ?= $(CFG_CRYPTO_SHA256_ARM_CE)
107CFG_CRYPTO_SHA1_ARM_CE ?= $(CFG_CRYPTO_SHA1)
108CFG_CORE_CRYPTO_SHA1_ACCEL ?= $(CFG_CRYPTO_SHA1_ARM_CE)
109CFG_CRYPTO_AES_ARM_CE ?= $(CFG_CRYPTO_AES)
110CFG_CORE_CRYPTO_AES_ACCEL ?= $(CFG_CRYPTO_AES_ARM_CE)
111
112# CFG_CRYPTO_SM4_ARM_AESE defines whether we use AESE to optimize SM4
113CFG_CRYPTO_SM4_ARM_AESE ?= $(CFG_CRYPTO_SM4)
114CFG_CORE_CRYPTO_SM4_ACCEL ?= $(CFG_CRYPTO_SM4_ARM_AESE)
115else #CFG_CRYPTO_WITH_CE
116
117CFG_AES_GCM_TABLE_BASED ?= y
118
119endif #!CFG_CRYPTO_WITH_CE
120
121
122# Cryptographic extensions can only be used safely when OP-TEE knows how to
123# preserve the VFP context
124ifeq ($(CFG_CRYPTO_SHA256_ARM32_CE),y)
125$(call force,CFG_WITH_VFP,y,required by CFG_CRYPTO_SHA256_ARM32_CE)
126endif
127ifeq ($(CFG_CRYPTO_SHA256_ARM64_CE),y)
128$(call force,CFG_WITH_VFP,y,required by CFG_CRYPTO_SHA256_ARM64_CE)
129endif
130ifeq ($(CFG_CRYPTO_SHA1_ARM_CE),y)
131$(call force,CFG_WITH_VFP,y,required by CFG_CRYPTO_SHA1_ARM_CE)
132endif
133ifeq ($(CFG_CRYPTO_AES_ARM_CE),y)
134$(call force,CFG_WITH_VFP,y,required by CFG_CRYPTO_AES_ARM_CE)
135endif
136ifeq ($(CFG_CORE_CRYPTO_SM4_ACCEL),y)
137$(call force,CFG_WITH_VFP,y,required by CFG_CORE_CRYPTO_SM4_ACCEL)
138endif
139cryp-enable-all-depends = $(call cfg-enable-all-depends,$(strip $(1)),$(foreach v,$(2),CFG_CRYPTO_$(v)))
140$(eval $(call cryp-enable-all-depends,CFG_REE_FS, AES ECB CTR HMAC SHA256 GCM))
141$(eval $(call cryp-enable-all-depends,CFG_RPMB_FS, AES ECB CTR HMAC SHA256 GCM))
142
143# Dependency checks: warn and disable some features if dependencies are not met
144
145cryp-dep-one = $(call cfg-depends-one,CFG_CRYPTO_$(strip $(1)),$(patsubst %, CFG_CRYPTO_%,$(strip $(2))))
146cryp-dep-all = $(call cfg-depends-all,CFG_CRYPTO_$(strip $(1)),$(patsubst %, CFG_CRYPTO_%,$(strip $(2))))
147
148$(eval $(call cryp-dep-one, ECB, AES DES))
149$(eval $(call cryp-dep-one, CBC, AES DES))
150$(eval $(call cryp-dep-one, CTR, AES))
151# CTS is implemented with ECB and CBC
152$(eval $(call cryp-dep-all, CTS, AES ECB CBC))
153$(eval $(call cryp-dep-one, XTS, AES))
154$(eval $(call cryp-dep-one, HMAC, AES DES))
155$(eval $(call cryp-dep-one, HMAC, MD5 SHA1 SHA224 SHA256 SHA384 SHA512))
156$(eval $(call cryp-dep-one, CMAC, AES))
157$(eval $(call cryp-dep-one, CBC_MAC, AES DES))
158$(eval $(call cryp-dep-one, CCM, AES))
159$(eval $(call cryp-dep-one, GCM, AES))
160# If no AES cipher mode is left, disable AES
161$(eval $(call cryp-dep-one, AES, ECB CBC CTR CTS XTS))
162# If no DES cipher mode is left, disable DES
163$(eval $(call cryp-dep-one, DES, ECB CBC))
164# SM2 is Elliptic Curve Cryptography, it uses some generic ECC functions
165$(eval $(call cryp-dep-one, SM2_PKE, ECC))
166$(eval $(call cryp-dep-one, SM2_DSA, ECC))
167$(eval $(call cryp-dep-one, SM2_KEP, ECC))
168
169###############################################################
170# libtomcrypt (LTC) specifics, phase #1
171# LTC is only configured via _CFG_CORE_LTC_ prefixed variables
172#
173# _CFG_CORE_LTC_xxx_DESC means that LTC will only register the
174# descriptor of the algorithm, not provide a
175# crypt_xxx_alloc_ctx() function.
176###############################################################
177
178# If LTC is the cryptolib, pull configuration from CFG_CRYPTO_xxx
179ifeq ($(CFG_CRYPTOLIB_NAME),tomcrypt)
180# dsa_make_params() needs all three SHA-2 algorithms.
181# Disable DSA if any is missing.
182$(eval $(call cryp-dep-all, DSA, SHA256 SHA384 SHA512))
183
184# Assign _CFG_CORE_LTC_xxx based on CFG_CRYPTO_yyy
185core-ltc-vars = AES DES
186core-ltc-vars += ECB CBC CTR CTS XTS
187core-ltc-vars += MD5 SHA1 SHA224 SHA256 SHA384 SHA512 SHA512_256
188core-ltc-vars += SHA3_224 SHA3_256 SHA3_384 SHA3_512 SHAKE128 SHAKE256
189core-ltc-vars += HMAC CMAC CBC_MAC
190core-ltc-vars += CCM
191ifeq ($(CFG_CRYPTO_AES_GCM_FROM_CRYPTOLIB),y)
192core-ltc-vars += GCM
193endif
194core-ltc-vars += RSA DSA DH ECC
195core-ltc-vars += SIZE_OPTIMIZATION
196core-ltc-vars += SM2_PKE
197core-ltc-vars += SM2_DSA
198core-ltc-vars += SM2_KEP
199core-ltc-vars += ED25519 X25519
200# Assigned selected CFG_CRYPTO_xxx as _CFG_CORE_LTC_xxx
201$(foreach v, $(core-ltc-vars), $(eval _CFG_CORE_LTC_$(v) := $(CFG_CRYPTO_$(v))))
202_CFG_CORE_LTC_MPI := $(CFG_CORE_MBEDTLS_MPI)
203_CFG_CORE_LTC_AES_ACCEL := $(CFG_CORE_CRYPTO_AES_ACCEL)
204_CFG_CORE_LTC_SHA1_ACCEL := $(CFG_CORE_CRYPTO_SHA1_ACCEL)
205_CFG_CORE_LTC_SHA256_ACCEL := $(CFG_CORE_CRYPTO_SHA256_ACCEL)
206_CFG_CORE_LTC_SHA512_ACCEL := $(CFG_CORE_CRYPTO_SHA512_ACCEL)
207_CFG_CORE_LTC_SHA3_ACCEL := $(CFG_CORE_CRYPTO_SHA3_ACCEL)
208endif
209
210###############################################################
211# mbedtls specifics
212###############################################################
213
214ifeq ($(CFG_CRYPTOLIB_NAME),mbedtls)
215# mbedtls has to be complemented with some algorithms by LTC
216# Specify the algorithms here
217_CFG_CORE_LTC_DSA := $(CFG_CRYPTO_DSA)
218_CFG_CORE_LTC_MPI := $(CFG_CRYPTO_DSA)
219_CFG_CORE_LTC_SHA256_DESC := $(CFG_CRYPTO_DSA)
220_CFG_CORE_LTC_SHA384_DESC := $(CFG_CRYPTO_DSA)
221_CFG_CORE_LTC_SHA512_DESC := $(CFG_CRYPTO_DSA)
222_CFG_CORE_LTC_XTS := $(CFG_CRYPTO_XTS)
223_CFG_CORE_LTC_CCM := $(CFG_CRYPTO_CCM)
224_CFG_CORE_LTC_AES_DESC := $(call cfg-one-enabled, CFG_CRYPTO_XTS CFG_CRYPTO_CCM)
225_CFG_CORE_LTC_X25519 := $(CFG_CRYPTO_X25519)
226_CFG_CORE_LTC_ED25519 := $(CFG_CRYPTO_ED25519)
227_CFG_CORE_LTC_SHA3_224 := $(CFG_CRYPTO_SHA3_224)
228_CFG_CORE_LTC_SHA3_256 := $(CFG_CRYPTO_SHA3_256)
229_CFG_CORE_LTC_SHA3_384 := $(CFG_CRYPTO_SHA3_384)
230_CFG_CORE_LTC_SHA3_512 := $(CFG_CRYPTO_SHA3_512)
231_CFG_CORE_LTC_SHAKE128 := $(CFG_CRYPTO_SHAKE128)
232_CFG_CORE_LTC_SHAKE256 := $(CFG_CRYPTO_SHAKE256)
233endif
234
235###############################################################
236# libtomcrypt (LTC) specifics, phase #2
237###############################################################
238
239_CFG_CORE_LTC_SHA256_DESC := $(call cfg-one-enabled, _CFG_CORE_LTC_SHA256_DESC \
240						     _CFG_CORE_LTC_SHA224 \
241						     _CFG_CORE_LTC_SHA256)
242_CFG_CORE_LTC_SHA384_DESC := $(call cfg-one-enabled, _CFG_CORE_LTC_SHA384_DESC \
243						     _CFG_CORE_LTC_SHA384)
244_CFG_CORE_LTC_SHA512_DESC := $(call cfg-one-enabled, _CFG_CORE_LTC_SHA512_DESC \
245						     _CFG_CORE_LTC_SHA512_256 \
246						     _CFG_CORE_LTC_SHA512)
247_CFG_CORE_LTC_AES_DESC := $(call cfg-one-enabled, _CFG_CORE_LTC_AES_DESC \
248						  _CFG_CORE_LTC_AES)
249
250_CFG_CORE_LTC_SHA3_DESC := $(call cfg-one-enabled, _CFG_CORE_LTC_SHA3_224 \
251			     _CFG_CORE_LTC_SHA3_256 _CFG_CORE_LTC_SHA3_384 \
252			     _CFG_CORE_LTC_SHA3_512 _CFG_CORE_LTC_SHAKE128 \
253			     _CFG_CORE_LTC_SHAKE256)
254
255# Assign system variables
256_CFG_CORE_LTC_CE := $(CFG_CRYPTO_WITH_CE)
257_CFG_CORE_LTC_VFP := $(CFG_WITH_VFP)
258_CFG_CORE_LTC_BIGNUM_MAX_BITS := $(CFG_CORE_BIGNUM_MAX_BITS)
259_CFG_CORE_LTC_PAGER := $(CFG_WITH_PAGER)
260ifneq ($(CFG_NUM_THREADS),1)
261_CFG_CORE_LTC_OPTEE_THREAD := y
262else
263_CFG_CORE_LTC_OPTEE_THREAD := n
264endif
265_CFG_CORE_LTC_HWSUPP_PMULL := $(CFG_HWSUPP_PMULL)
266
267# Assign aggregated variables
268ltc-one-enabled = $(call cfg-one-enabled,$(foreach v,$(1),_CFG_CORE_LTC_$(v)))
269_CFG_CORE_LTC_ACIPHER := $(call ltc-one-enabled, RSA DSA DH ECC)
270_CFG_CORE_LTC_AUTHENC := $(and $(filter y,$(_CFG_CORE_LTC_AES_DESC)), \
271			       $(filter y,$(call ltc-one-enabled, CCM GCM)))
272_CFG_CORE_LTC_CIPHER := $(call ltc-one-enabled, AES_DESC DES)
273_CFG_CORE_LTC_HASH := $(call ltc-one-enabled, MD5 SHA1 SHA224 SHA256 SHA384 \
274					      SHA512 SHA3_224 SHA3_256 \
275					      SHA3_384 SHA3_512)
276ifeq ($(CFG_CRYPTO_HMAC),y)
277_CFG_CORE_LTC_HMAC := $(call ltc-one-enabled, MD5 SHA1 SHA224 SHA256 SHA384 \
278					      SHA512 SHA3_224 SHA3_256 \
279					      SHA3_384 SHA3_512)
280endif
281
282_CFG_CORE_LTC_MAC := $(call ltc-one-enabled, HMAC CMAC CBC_MAC)
283_CFG_CORE_LTC_CBC := $(call ltc-one-enabled, CBC CBC_MAC)
284_CFG_CORE_LTC_ASN1 := $(call ltc-one-enabled, RSA DSA ECC)
285_CFG_CORE_LTC_EC25519 := $(call ltc-one-enabled, ED25519 X25519)
286
287###############################################################
288# Platform independent crypto-driver configuration
289###############################################################
290CRYPTO_MAKEFILES := $(sort $(wildcard core/drivers/crypto/*/crypto.mk))
291include $(CRYPTO_MAKEFILES)
292
293# Enable TEE_ALG_RSASSA_PKCS1_V1_5 algorithm for signing with PKCS#1 v1.5 EMSA
294# without ASN.1 around the hash.
295ifeq ($(CFG_CRYPTOLIB_NAME),tomcrypt)
296CFG_CRYPTO_RSASSA_NA1 ?= y
297endif
298