xref: /openbmc/linux/arch/arm/crypto/Kconfig (revision e4624435) 
1# SPDX-License-Identifier: GPL-2.0
2
3menu "Accelerated Cryptographic Algorithms for CPU (arm)"
4
5config CRYPTO_CURVE25519_NEON
6	tristate "Public key crypto: Curve25519 (NEON)"
7	depends on KERNEL_MODE_NEON
8	select CRYPTO_LIB_CURVE25519_GENERIC
9	select CRYPTO_ARCH_HAVE_LIB_CURVE25519
10	help
11	  Curve25519 algorithm
12
13	  Architecture: arm with
14	  - NEON (Advanced SIMD) extensions
15
16config CRYPTO_GHASH_ARM_CE
17	tristate "Hash functions: GHASH (PMULL/NEON/ARMv8 Crypto Extensions)"
18	depends on KERNEL_MODE_NEON
19	select CRYPTO_AEAD
20	select CRYPTO_HASH
21	select CRYPTO_CRYPTD
22	select CRYPTO_LIB_AES
23	select CRYPTO_LIB_GF128MUL
24	help
25	  GCM GHASH function (NIST SP800-38D)
26
27	  Architecture: arm using
28	  - PMULL (Polynomial Multiply Long) instructions
29	  - NEON (Advanced SIMD) extensions
30	  - ARMv8 Crypto Extensions
31
32	  Use an implementation of GHASH (used by the GCM AEAD chaining mode)
33	  that uses the 64x64 to 128 bit polynomial multiplication (vmull.p64)
34	  that is part of the ARMv8 Crypto Extensions, or a slower variant that
35	  uses the vmull.p8 instruction that is part of the basic NEON ISA.
36
37config CRYPTO_NHPOLY1305_NEON
38	tristate "Hash functions: NHPoly1305 (NEON)"
39	depends on KERNEL_MODE_NEON
40	select CRYPTO_NHPOLY1305
41	help
42	  NHPoly1305 hash function (Adiantum)
43
44	  Architecture: arm using:
45	  - NEON (Advanced SIMD) extensions
46
47config CRYPTO_POLY1305_ARM
48	tristate "Hash functions: Poly1305 (NEON)"
49	select CRYPTO_HASH
50	select CRYPTO_ARCH_HAVE_LIB_POLY1305
51	help
52	  Poly1305 authenticator algorithm (RFC7539)
53
54	  Architecture: arm optionally using
55	  - NEON (Advanced SIMD) extensions
56
57config CRYPTO_BLAKE2S_ARM
58	bool "Hash functions: BLAKE2s"
59	select CRYPTO_ARCH_HAVE_LIB_BLAKE2S
60	help
61	  BLAKE2s cryptographic hash function (RFC 7693)
62
63	  Architecture: arm
64
65	  This is faster than the generic implementations of BLAKE2s and
66	  BLAKE2b, but slower than the NEON implementation of BLAKE2b.
67	  There is no NEON implementation of BLAKE2s, since NEON doesn't
68	  really help with it.
69
70config CRYPTO_BLAKE2B_NEON
71	tristate "Hash functions: BLAKE2b (NEON)"
72	depends on KERNEL_MODE_NEON
73	select CRYPTO_BLAKE2B
74	help
75	  BLAKE2b cryptographic hash function (RFC 7693)
76
77	  Architecture: arm using
78	  - NEON (Advanced SIMD) extensions
79
80	  BLAKE2b digest algorithm optimized with ARM NEON instructions.
81	  On ARM processors that have NEON support but not the ARMv8
82	  Crypto Extensions, typically this BLAKE2b implementation is
83	  much faster than the SHA-2 family and slightly faster than
84	  SHA-1.
85
86config CRYPTO_SHA1_ARM
87	tristate "Hash functions: SHA-1"
88	select CRYPTO_SHA1
89	select CRYPTO_HASH
90	help
91	  SHA-1 secure hash algorithm (FIPS 180)
92
93	  Architecture: arm
94
95config CRYPTO_SHA1_ARM_NEON
96	tristate "Hash functions: SHA-1 (NEON)"
97	depends on KERNEL_MODE_NEON
98	select CRYPTO_SHA1_ARM
99	select CRYPTO_SHA1
100	select CRYPTO_HASH
101	help
102	  SHA-1 secure hash algorithm (FIPS 180)
103
104	  Architecture: arm using
105	  - NEON (Advanced SIMD) extensions
106
107config CRYPTO_SHA1_ARM_CE
108	tristate "Hash functions: SHA-1 (ARMv8 Crypto Extensions)"
109	depends on KERNEL_MODE_NEON
110	select CRYPTO_SHA1_ARM
111	select CRYPTO_HASH
112	help
113	  SHA-1 secure hash algorithm (FIPS 180)
114
115	  Architecture: arm using ARMv8 Crypto Extensions
116
117config CRYPTO_SHA2_ARM_CE
118	tristate "Hash functions: SHA-224 and SHA-256 (ARMv8 Crypto Extensions)"
119	depends on KERNEL_MODE_NEON
120	select CRYPTO_SHA256_ARM
121	select CRYPTO_HASH
122	help
123	  SHA-224 and SHA-256 secure hash algorithms (FIPS 180)
124
125	  Architecture: arm using
126	  - ARMv8 Crypto Extensions
127
128config CRYPTO_SHA256_ARM
129	tristate "Hash functions: SHA-224 and SHA-256 (NEON)"
130	select CRYPTO_HASH
131	depends on !CPU_V7M
132	help
133	  SHA-224 and SHA-256 secure hash algorithms (FIPS 180)
134
135	  Architecture: arm using
136	  - NEON (Advanced SIMD) extensions
137
138config CRYPTO_SHA512_ARM
139	tristate "Hash functions: SHA-384 and SHA-512 (NEON)"
140	select CRYPTO_HASH
141	depends on !CPU_V7M
142	help
143	  SHA-384 and SHA-512 secure hash algorithms (FIPS 180)
144
145	  Architecture: arm using
146	  - NEON (Advanced SIMD) extensions
147
148config CRYPTO_AES_ARM
149	tristate "Ciphers: AES"
150	select CRYPTO_ALGAPI
151	select CRYPTO_AES
152	help
153	  Block ciphers: AES cipher algorithms (FIPS-197)
154
155	  Architecture: arm
156
157	  On ARM processors without the Crypto Extensions, this is the
158	  fastest AES implementation for single blocks.  For multiple
159	  blocks, the NEON bit-sliced implementation is usually faster.
160
161	  This implementation may be vulnerable to cache timing attacks,
162	  since it uses lookup tables.  However, as countermeasures it
163	  disables IRQs and preloads the tables; it is hoped this makes
164	  such attacks very difficult.
165
166config CRYPTO_AES_ARM_BS
167	tristate "Ciphers: AES, modes: ECB/CBC/CTR/XTS (bit-sliced NEON)"
168	depends on KERNEL_MODE_NEON
169	select CRYPTO_SKCIPHER
170	select CRYPTO_LIB_AES
171	select CRYPTO_AES
172	select CRYPTO_CBC
173	select CRYPTO_SIMD
174	help
175	  Length-preserving ciphers: AES cipher algorithms (FIPS-197)
176	  with block cipher modes:
177	   - ECB (Electronic Codebook) mode (NIST SP800-38A)
178	   - CBC (Cipher Block Chaining) mode (NIST SP800-38A)
179	   - CTR (Counter) mode (NIST SP800-38A)
180	   - XTS (XOR Encrypt XOR with ciphertext stealing) mode (NIST SP800-38E
181	     and IEEE 1619)
182
183	  Bit sliced AES gives around 45% speedup on Cortex-A15 for CTR mode
184	  and for XTS mode encryption, CBC and XTS mode decryption speedup is
185	  around 25%. (CBC encryption speed is not affected by this driver.)
186	  This implementation does not rely on any lookup tables so it is
187	  believed to be invulnerable to cache timing attacks.
188
189config CRYPTO_AES_ARM_CE
190	tristate "Ciphers: AES, modes: ECB/CBC/CTS/CTR/XTS (ARMv8 Crypto Extensions)"
191	depends on KERNEL_MODE_NEON
192	select CRYPTO_SKCIPHER
193	select CRYPTO_LIB_AES
194	select CRYPTO_SIMD
195	help
196	  Length-preserving ciphers: AES cipher algorithms (FIPS-197)
197	   with block cipher modes:
198	   - ECB (Electronic Codebook) mode (NIST SP800-38A)
199	   - CBC (Cipher Block Chaining) mode (NIST SP800-38A)
200	   - CTR (Counter) mode (NIST SP800-38A)
201	   - CTS (Cipher Text Stealing) mode (NIST SP800-38A)
202	   - XTS (XOR Encrypt XOR with ciphertext stealing) mode (NIST SP800-38E
203	     and IEEE 1619)
204
205	  Architecture: arm using:
206	  - ARMv8 Crypto Extensions
207
208config CRYPTO_CHACHA20_NEON
209	tristate "Ciphers: ChaCha20, XChaCha20, XChaCha12 (NEON)"
210	select CRYPTO_SKCIPHER
211	select CRYPTO_ARCH_HAVE_LIB_CHACHA
212	help
213	  Length-preserving ciphers: ChaCha20, XChaCha20, and XChaCha12
214	  stream cipher algorithms
215
216	  Architecture: arm using:
217	  - NEON (Advanced SIMD) extensions
218
219config CRYPTO_CRC32_ARM_CE
220	tristate "CRC32C and CRC32"
221	depends on KERNEL_MODE_NEON
222	depends on CRC32
223	select CRYPTO_HASH
224	help
225	  CRC32c CRC algorithm with the iSCSI polynomial (RFC 3385 and RFC 3720)
226	  and CRC32 CRC algorithm (IEEE 802.3)
227
228	  Architecture: arm using:
229	  - CRC and/or PMULL instructions
230
231	  Drivers: crc32-arm-ce and crc32c-arm-ce
232
233config CRYPTO_CRCT10DIF_ARM_CE
234	tristate "CRCT10DIF"
235	depends on KERNEL_MODE_NEON
236	depends on CRC_T10DIF
237	select CRYPTO_HASH
238	help
239	  CRC16 CRC algorithm used for the T10 (SCSI) Data Integrity Field (DIF)
240
241	  Architecture: arm using:
242	  - PMULL (Polynomial Multiply Long) instructions
243
244endmenu
245
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