1# SPDX-License-Identifier: GPL-2.0
2
3menuconfig ARM_CRYPTO
4	bool "ARM Accelerated Cryptographic Algorithms"
5	depends on ARM
6	help
7	  Say Y here to choose from a selection of cryptographic algorithms
8	  implemented using ARM specific CPU features or instructions.
9
10if ARM_CRYPTO
11
12config CRYPTO_SHA1_ARM
13	tristate "SHA1 digest algorithm (ARM-asm)"
14	select CRYPTO_SHA1
15	select CRYPTO_HASH
16	help
17	  SHA-1 secure hash standard (FIPS 180-1/DFIPS 180-2) implemented
18	  using optimized ARM assembler.
19
20config CRYPTO_SHA1_ARM_NEON
21	tristate "SHA1 digest algorithm (ARM NEON)"
22	depends on KERNEL_MODE_NEON
23	select CRYPTO_SHA1_ARM
24	select CRYPTO_SHA1
25	select CRYPTO_HASH
26	help
27	  SHA-1 secure hash standard (FIPS 180-1/DFIPS 180-2) implemented
28	  using optimized ARM NEON assembly, when NEON instructions are
29	  available.
30
31config CRYPTO_SHA1_ARM_CE
32	tristate "SHA1 digest algorithm (ARM v8 Crypto Extensions)"
33	depends on KERNEL_MODE_NEON
34	select CRYPTO_SHA1_ARM
35	select CRYPTO_HASH
36	help
37	  SHA-1 secure hash standard (FIPS 180-1/DFIPS 180-2) implemented
38	  using special ARMv8 Crypto Extensions.
39
40config CRYPTO_SHA2_ARM_CE
41	tristate "SHA-224/256 digest algorithm (ARM v8 Crypto Extensions)"
42	depends on KERNEL_MODE_NEON
43	select CRYPTO_SHA256_ARM
44	select CRYPTO_HASH
45	help
46	  SHA-256 secure hash standard (DFIPS 180-2) implemented
47	  using special ARMv8 Crypto Extensions.
48
49config CRYPTO_SHA256_ARM
50	tristate "SHA-224/256 digest algorithm (ARM-asm and NEON)"
51	select CRYPTO_HASH
52	depends on !CPU_V7M
53	help
54	  SHA-256 secure hash standard (DFIPS 180-2) implemented
55	  using optimized ARM assembler and NEON, when available.
56
57config CRYPTO_SHA512_ARM
58	tristate "SHA-384/512 digest algorithm (ARM-asm and NEON)"
59	select CRYPTO_HASH
60	depends on !CPU_V7M
61	help
62	  SHA-512 secure hash standard (DFIPS 180-2) implemented
63	  using optimized ARM assembler and NEON, when available.
64
65config CRYPTO_BLAKE2S_ARM
66	tristate "BLAKE2s digest algorithm (ARM)"
67	select CRYPTO_ARCH_HAVE_LIB_BLAKE2S
68	help
69	  BLAKE2s digest algorithm optimized with ARM scalar instructions.  This
70	  is faster than the generic implementations of BLAKE2s and BLAKE2b, but
71	  slower than the NEON implementation of BLAKE2b.  (There is no NEON
72	  implementation of BLAKE2s, since NEON doesn't really help with it.)
73
74config CRYPTO_BLAKE2B_NEON
75	tristate "BLAKE2b digest algorithm (ARM NEON)"
76	depends on KERNEL_MODE_NEON
77	select CRYPTO_BLAKE2B
78	help
79	  BLAKE2b digest algorithm optimized with ARM NEON instructions.
80	  On ARM processors that have NEON support but not the ARMv8
81	  Crypto Extensions, typically this BLAKE2b implementation is
82	  much faster than SHA-2 and slightly faster than SHA-1.
83
84config CRYPTO_AES_ARM
85	tristate "Scalar AES cipher for ARM"
86	select CRYPTO_ALGAPI
87	select CRYPTO_AES
88	help
89	  Use optimized AES assembler routines for ARM platforms.
90
91	  On ARM processors without the Crypto Extensions, this is the
92	  fastest AES implementation for single blocks.  For multiple
93	  blocks, the NEON bit-sliced implementation is usually faster.
94
95	  This implementation may be vulnerable to cache timing attacks,
96	  since it uses lookup tables.  However, as countermeasures it
97	  disables IRQs and preloads the tables; it is hoped this makes
98	  such attacks very difficult.
99
100config CRYPTO_AES_ARM_BS
101	tristate "Bit sliced AES using NEON instructions"
102	depends on KERNEL_MODE_NEON
103	select CRYPTO_SKCIPHER
104	select CRYPTO_LIB_AES
105	select CRYPTO_SIMD
106	help
107	  Use a faster and more secure NEON based implementation of AES in CBC,
108	  CTR and XTS modes
109
110	  Bit sliced AES gives around 45% speedup on Cortex-A15 for CTR mode
111	  and for XTS mode encryption, CBC and XTS mode decryption speedup is
112	  around 25%. (CBC encryption speed is not affected by this driver.)
113	  This implementation does not rely on any lookup tables so it is
114	  believed to be invulnerable to cache timing attacks.
115
116config CRYPTO_AES_ARM_CE
117	tristate "Accelerated AES using ARMv8 Crypto Extensions"
118	depends on KERNEL_MODE_NEON
119	select CRYPTO_SKCIPHER
120	select CRYPTO_LIB_AES
121	select CRYPTO_SIMD
122	help
123	  Use an implementation of AES in CBC, CTR and XTS modes that uses
124	  ARMv8 Crypto Extensions
125
126config CRYPTO_GHASH_ARM_CE
127	tristate "PMULL-accelerated GHASH using NEON/ARMv8 Crypto Extensions"
128	depends on KERNEL_MODE_NEON
129	select CRYPTO_HASH
130	select CRYPTO_CRYPTD
131	select CRYPTO_GF128MUL
132	help
133	  Use an implementation of GHASH (used by the GCM AEAD chaining mode)
134	  that uses the 64x64 to 128 bit polynomial multiplication (vmull.p64)
135	  that is part of the ARMv8 Crypto Extensions, or a slower variant that
136	  uses the vmull.p8 instruction that is part of the basic NEON ISA.
137
138config CRYPTO_CRCT10DIF_ARM_CE
139	tristate "CRCT10DIF digest algorithm using PMULL instructions"
140	depends on KERNEL_MODE_NEON
141	depends on CRC_T10DIF
142	select CRYPTO_HASH
143
144config CRYPTO_CRC32_ARM_CE
145	tristate "CRC32(C) digest algorithm using CRC and/or PMULL instructions"
146	depends on KERNEL_MODE_NEON
147	depends on CRC32
148	select CRYPTO_HASH
149
150config CRYPTO_CHACHA20_NEON
151	tristate "NEON and scalar accelerated ChaCha stream cipher algorithms"
152	select CRYPTO_SKCIPHER
153	select CRYPTO_ARCH_HAVE_LIB_CHACHA
154
155config CRYPTO_POLY1305_ARM
156	tristate "Accelerated scalar and SIMD Poly1305 hash implementations"
157	select CRYPTO_HASH
158	select CRYPTO_ARCH_HAVE_LIB_POLY1305
159
160config CRYPTO_NHPOLY1305_NEON
161	tristate "NEON accelerated NHPoly1305 hash function (for Adiantum)"
162	depends on KERNEL_MODE_NEON
163	select CRYPTO_NHPOLY1305
164
165config CRYPTO_CURVE25519_NEON
166	tristate "NEON accelerated Curve25519 scalar multiplication library"
167	depends on KERNEL_MODE_NEON
168	select CRYPTO_LIB_CURVE25519_GENERIC
169	select CRYPTO_ARCH_HAVE_LIB_CURVE25519
170
171endif
172