arch/arm/crypto/Kconfig

   1 # SPDX-License-Identifier: GPL-2.0
   2
   3 menuconfig 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
  10 if ARM_CRYPTO
  11
  12 config 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
  20 config 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
  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
  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
  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
  44         select CRYPTO_HASH
  45         help
  46           SHA-256 secure hash standard (DFIPS 180-2) implemented
  47           using special ARMv8 Crypto Extensions.
  48
  49 config 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
  57 config 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
  65 config 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
  72           On ARM processors without the Crypto Extensions, this is the
  73           fastest AES implementation for single blocks.  For multiple
  74           blocks, the NEON bit-sliced implementation is usually faster.
  75
  76           This implementation may be vulnerable to cache timing attacks,
  77           since it uses lookup tables.  However, as countermeasures it
  78           disables IRQs and preloads the tables; it is hoped this makes
  79           such attacks very difficult.
  80
  81 config CRYPTO_AES_ARM_BS
  82         tristate "Bit sliced AES using NEON instructions"
  83         depends on KERNEL_MODE_NEON
  84         select CRYPTO_BLKCIPHER
  85         select CRYPTO_LIB_AES
  86         select CRYPTO_SIMD
  87         help
  88           Use a faster and more secure NEON based implementation of AES in CBC,
  89           CTR and XTS modes
  90
  91           Bit sliced AES gives around 45% speedup on Cortex-A15 for CTR mode
  92           and for XTS mode encryption, CBC and XTS mode decryption speedup is
  93           around 25%. (CBC encryption speed is not affected by this driver.)
  94           This implementation does not rely on any lookup tables so it is
  95           believed to be invulnerable to cache timing attacks.
  96
  97 config CRYPTO_AES_ARM_CE
  98         tristate "Accelerated AES using ARMv8 Crypto Extensions"
  99         depends on KERNEL_MODE_NEON
 100         select CRYPTO_BLKCIPHER
 101         select CRYPTO_SIMD
 102         help
 103           Use an implementation of AES in CBC, CTR and XTS modes that uses
 104           ARMv8 Crypto Extensions
 105
 106 config CRYPTO_GHASH_ARM_CE
 107         tristate "PMULL-accelerated GHASH using NEON/ARMv8 Crypto Extensions"
 108         depends on KERNEL_MODE_NEON
 109         select CRYPTO_HASH
 110         select CRYPTO_CRYPTD
 111         select CRYPTO_GF128MUL
 112         help
 113           Use an implementation of GHASH (used by the GCM AEAD chaining mode)
 114           that uses the 64x64 to 128 bit polynomial multiplication (vmull.p64)
 115           that is part of the ARMv8 Crypto Extensions, or a slower variant that
 116           uses the vmull.p8 instruction that is part of the basic NEON ISA.
 117
 118 config CRYPTO_CRCT10DIF_ARM_CE
 119         tristate "CRCT10DIF digest algorithm using PMULL instructions"
 120         depends on KERNEL_MODE_NEON && CRC_T10DIF
 121         select CRYPTO_HASH
 122
 123 config CRYPTO_CRC32_ARM_CE
 124         tristate "CRC32(C) digest algorithm using CRC and/or PMULL instructions"
 125         depends on KERNEL_MODE_NEON && CRC32
 126         select CRYPTO_HASH
 127
 128 config CRYPTO_CHACHA20_NEON
 129         tristate "NEON accelerated ChaCha stream cipher algorithms"
 130         depends on KERNEL_MODE_NEON
 131         select CRYPTO_BLKCIPHER
 132         select CRYPTO_CHACHA20
 133
 134 config CRYPTO_NHPOLY1305_NEON
 135         tristate "NEON accelerated NHPoly1305 hash function (for Adiantum)"
 136         depends on KERNEL_MODE_NEON
 137         select CRYPTO_NHPOLY1305
 138
 139 endif