diff options
Diffstat (limited to 'arch/arm/crypto/Kconfig')
| -rw-r--r-- | arch/arm/crypto/Kconfig | 16 |
1 files changed, 15 insertions, 1 deletions
diff --git a/arch/arm/crypto/Kconfig b/arch/arm/crypto/Kconfig index ef0c7feea6e2..a95322b59799 100644 --- a/arch/arm/crypto/Kconfig +++ b/arch/arm/crypto/Kconfig @@ -69,6 +69,15 @@ config CRYPTO_AES_ARM help Use optimized AES assembler routines for ARM platforms. + On ARM processors without the Crypto Extensions, this is the + fastest AES implementation for single blocks. For multiple + blocks, the NEON bit-sliced implementation is usually faster. + + This implementation may be vulnerable to cache timing attacks, + since it uses lookup tables. However, as countermeasures it + disables IRQs and preloads the tables; it is hoped this makes + such attacks very difficult. + config CRYPTO_AES_ARM_BS tristate "Bit sliced AES using NEON instructions" depends on KERNEL_MODE_NEON @@ -117,9 +126,14 @@ config CRYPTO_CRC32_ARM_CE select CRYPTO_HASH config CRYPTO_CHACHA20_NEON - tristate "NEON accelerated ChaCha20 symmetric cipher" + tristate "NEON accelerated ChaCha stream cipher algorithms" depends on KERNEL_MODE_NEON select CRYPTO_BLKCIPHER select CRYPTO_CHACHA20 +config CRYPTO_NHPOLY1305_NEON + tristate "NEON accelerated NHPoly1305 hash function (for Adiantum)" + depends on KERNEL_MODE_NEON + select CRYPTO_NHPOLY1305 + endif |