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 bool "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_AES 106 select CRYPTO_CBC 107 select CRYPTO_SIMD 108 help 109 Use a faster and more secure NEON based implementation of AES in CBC, 110 CTR and XTS modes 111 112 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. 117 118config 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 123 select CRYPTO_SIMD 124 help 125 Use an implementation of AES in CBC, CTR and XTS modes that uses 126 ARMv8 Crypto Extensions 127 128config CRYPTO_GHASH_ARM_CE 129 tristate "PMULL-accelerated GHASH using NEON/ARMv8 Crypto Extensions" 130 depends on KERNEL_MODE_NEON 131 select CRYPTO_HASH 132 select CRYPTO_CRYPTD 133 select CRYPTO_GF128MUL 134 help 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. 139 140config CRYPTO_CRCT10DIF_ARM_CE 141 tristate "CRCT10DIF digest algorithm using PMULL instructions" 142 depends on KERNEL_MODE_NEON 143 depends on CRC_T10DIF 144 select CRYPTO_HASH 145 146config CRYPTO_CRC32_ARM_CE 147 tristate "CRC32(C) digest algorithm using CRC and/or PMULL instructions" 148 depends on KERNEL_MODE_NEON 149 depends on CRC32 150 select CRYPTO_HASH 151 152config CRYPTO_CHACHA20_NEON 153 tristate "NEON and scalar accelerated ChaCha stream cipher algorithms" 154 select CRYPTO_SKCIPHER 155 select CRYPTO_ARCH_HAVE_LIB_CHACHA 156 157config CRYPTO_POLY1305_ARM 158 tristate "Accelerated scalar and SIMD Poly1305 hash implementations" 159 select CRYPTO_HASH 160 select CRYPTO_ARCH_HAVE_LIB_POLY1305 161 162config CRYPTO_NHPOLY1305_NEON 163 tristate "NEON accelerated NHPoly1305 hash function (for Adiantum)" 164 depends on KERNEL_MODE_NEON 165 select CRYPTO_NHPOLY1305 166 167config 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 172 173endif 174