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 124endif 125