xref: /openbmc/linux/arch/arm/crypto/Kconfig (revision ba61bb17)
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_AES_ARM
66	tristate "Scalar AES cipher for ARM"
67	select CRYPTO_ALGAPI
68	select CRYPTO_AES
69	help
70	  Use optimized AES assembler routines for ARM platforms.
71
72config CRYPTO_AES_ARM_BS
73	tristate "Bit sliced AES using NEON instructions"
74	depends on KERNEL_MODE_NEON
75	select CRYPTO_BLKCIPHER
76	select CRYPTO_SIMD
77	select CRYPTO_AES
78	help
79	  Use a faster and more secure NEON based implementation of AES in CBC,
80	  CTR and XTS modes
81
82	  Bit sliced AES gives around 45% speedup on Cortex-A15 for CTR mode
83	  and for XTS mode encryption, CBC and XTS mode decryption speedup is
84	  around 25%. (CBC encryption speed is not affected by this driver.)
85	  This implementation does not rely on any lookup tables so it is
86	  believed to be invulnerable to cache timing attacks.
87
88config CRYPTO_AES_ARM_CE
89	tristate "Accelerated AES using ARMv8 Crypto Extensions"
90	depends on KERNEL_MODE_NEON
91	select CRYPTO_BLKCIPHER
92	select CRYPTO_SIMD
93	help
94	  Use an implementation of AES in CBC, CTR and XTS modes that uses
95	  ARMv8 Crypto Extensions
96
97config CRYPTO_GHASH_ARM_CE
98	tristate "PMULL-accelerated GHASH using NEON/ARMv8 Crypto Extensions"
99	depends on KERNEL_MODE_NEON
100	select CRYPTO_HASH
101	select CRYPTO_CRYPTD
102	help
103	  Use an implementation of GHASH (used by the GCM AEAD chaining mode)
104	  that uses the 64x64 to 128 bit polynomial multiplication (vmull.p64)
105	  that is part of the ARMv8 Crypto Extensions, or a slower variant that
106	  uses the vmull.p8 instruction that is part of the basic NEON ISA.
107
108config CRYPTO_CRCT10DIF_ARM_CE
109	tristate "CRCT10DIF digest algorithm using PMULL instructions"
110	depends on KERNEL_MODE_NEON && CRC_T10DIF
111	select CRYPTO_HASH
112
113config CRYPTO_CRC32_ARM_CE
114	tristate "CRC32(C) digest algorithm using CRC and/or PMULL instructions"
115	depends on KERNEL_MODE_NEON && CRC32
116	select CRYPTO_HASH
117
118config CRYPTO_CHACHA20_NEON
119	tristate "NEON accelerated ChaCha20 symmetric cipher"
120	depends on KERNEL_MODE_NEON
121	select CRYPTO_BLKCIPHER
122	select CRYPTO_CHACHA20
123
124config CRYPTO_SPECK_NEON
125	tristate "NEON accelerated Speck cipher algorithms"
126	depends on KERNEL_MODE_NEON
127	select CRYPTO_BLKCIPHER
128	select CRYPTO_SPECK
129
130endif
131