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