1 # SPDX-License-Identifier: GPL-2.0
4 bool "ARM Accelerated Cryptographic Algorithms"
7 Say Y here to choose from a selection of cryptographic algorithms
8 implemented using ARM specific CPU features or instructions.
12 config CRYPTO_SHA1_ARM
13 tristate "SHA1 digest algorithm (ARM-asm)"
17 SHA-1 secure hash standard (FIPS 180-1/DFIPS 180-2) implemented
18 using optimized ARM assembler.
20 config CRYPTO_SHA1_ARM_NEON
21 tristate "SHA1 digest algorithm (ARM NEON)"
22 depends on KERNEL_MODE_NEON
23 select CRYPTO_SHA1_ARM
27 SHA-1 secure hash standard (FIPS 180-1/DFIPS 180-2) implemented
28 using optimized ARM NEON assembly, when NEON instructions are
31 config CRYPTO_SHA1_ARM_CE
32 tristate "SHA1 digest algorithm (ARM v8 Crypto Extensions)"
33 depends on KERNEL_MODE_NEON
34 select CRYPTO_SHA1_ARM
37 SHA-1 secure hash standard (FIPS 180-1/DFIPS 180-2) implemented
38 using special ARMv8 Crypto Extensions.
40 config 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
46 SHA-256 secure hash standard (DFIPS 180-2) implemented
47 using special ARMv8 Crypto Extensions.
49 config CRYPTO_SHA256_ARM
50 tristate "SHA-224/256 digest algorithm (ARM-asm and NEON)"
54 SHA-256 secure hash standard (DFIPS 180-2) implemented
55 using optimized ARM assembler and NEON, when available.
57 config CRYPTO_SHA512_ARM
58 tristate "SHA-384/512 digest algorithm (ARM-asm and NEON)"
62 SHA-512 secure hash standard (DFIPS 180-2) implemented
63 using optimized ARM assembler and NEON, when available.
65 config CRYPTO_BLAKE2S_ARM
66 bool "BLAKE2s digest algorithm (ARM)"
67 select CRYPTO_ARCH_HAVE_LIB_BLAKE2S
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.)
74 config CRYPTO_BLAKE2B_NEON
75 tristate "BLAKE2b digest algorithm (ARM NEON)"
76 depends on KERNEL_MODE_NEON
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.
85 tristate "Scalar AES cipher for ARM"
89 Use optimized AES assembler routines for ARM platforms.
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.
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.
100 config 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
109 Use a faster and more secure NEON based implementation of AES in CBC,
112 Bit sliced AES gives around 45% speedup on Cortex-A15 for CTR mode
113 and for XTS mode encryption, CBC and XTS mode decryption speedup is
114 around 25%. (CBC encryption speed is not affected by this driver.)
115 This implementation does not rely on any lookup tables so it is
116 believed to be invulnerable to cache timing attacks.
118 config CRYPTO_AES_ARM_CE
119 tristate "Accelerated AES using ARMv8 Crypto Extensions"
120 depends on KERNEL_MODE_NEON
121 select CRYPTO_SKCIPHER
122 select CRYPTO_LIB_AES
125 Use an implementation of AES in CBC, CTR and XTS modes that uses
126 ARMv8 Crypto Extensions
128 config CRYPTO_GHASH_ARM_CE
129 tristate "PMULL-accelerated GHASH using NEON/ARMv8 Crypto Extensions"
130 depends on KERNEL_MODE_NEON
133 select CRYPTO_GF128MUL
135 Use an implementation of GHASH (used by the GCM AEAD chaining mode)
136 that uses the 64x64 to 128 bit polynomial multiplication (vmull.p64)
137 that is part of the ARMv8 Crypto Extensions, or a slower variant that
138 uses the vmull.p8 instruction that is part of the basic NEON ISA.
140 config CRYPTO_CRCT10DIF_ARM_CE
141 tristate "CRCT10DIF digest algorithm using PMULL instructions"
142 depends on KERNEL_MODE_NEON
143 depends on CRC_T10DIF
146 config CRYPTO_CRC32_ARM_CE
147 tristate "CRC32(C) digest algorithm using CRC and/or PMULL instructions"
148 depends on KERNEL_MODE_NEON
152 config CRYPTO_CHACHA20_NEON
153 tristate "NEON and scalar accelerated ChaCha stream cipher algorithms"
154 select CRYPTO_SKCIPHER
155 select CRYPTO_ARCH_HAVE_LIB_CHACHA
157 config CRYPTO_POLY1305_ARM
158 tristate "Accelerated scalar and SIMD Poly1305 hash implementations"
160 select CRYPTO_ARCH_HAVE_LIB_POLY1305
162 config CRYPTO_NHPOLY1305_NEON
163 tristate "NEON accelerated NHPoly1305 hash function (for Adiantum)"
164 depends on KERNEL_MODE_NEON
165 select CRYPTO_NHPOLY1305
167 config CRYPTO_CURVE25519_NEON
168 tristate "NEON accelerated Curve25519 scalar multiplication library"
169 depends on KERNEL_MODE_NEON
170 select CRYPTO_LIB_CURVE25519_GENERIC
171 select CRYPTO_ARCH_HAVE_LIB_CURVE25519