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| author | Eric Biggers <ebiggers@google.com> | 2018-11-16 17:26:24 -0800 |
|---|---|---|
| committer | Herbert Xu <herbert@gondor.apana.org.au> | 2018-11-20 14:26:56 +0800 |
| commit | d97a94309d764ed907d4281da6246f5d935166f8 (patch) | |
| tree | 6b17f507f905fc8240c49bac6b54c508aef6c79b /arch/arm/crypto/Kconfig | |
| parent | be2830b15b60011845ad701076511e8b93b2fd76 (diff) | |
| download | linux-next-d97a94309d764ed907d4281da6246f5d935166f8.tar.gz | |
crypto: arm/chacha20 - add XChaCha20 support
Add an XChaCha20 implementation that is hooked up to the ARM NEON
implementation of ChaCha20. This is needed for use in the Adiantum
encryption mode; see the generic code patch,
"crypto: chacha20-generic - add XChaCha20 support", for more details.
We also update the NEON code to support HChaCha20 on one block, so we
can use that in XChaCha20 rather than calling the generic HChaCha20.
This required factoring the permutation out into its own macro.
Reviewed-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Signed-off-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'arch/arm/crypto/Kconfig')
| -rw-r--r-- | arch/arm/crypto/Kconfig | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/arm/crypto/Kconfig b/arch/arm/crypto/Kconfig index 0473a8f68389..a08759c32cb9 100644 --- a/arch/arm/crypto/Kconfig +++ b/arch/arm/crypto/Kconfig @@ -126,7 +126,7 @@ config CRYPTO_CRC32_ARM_CE select CRYPTO_HASH config CRYPTO_CHACHA20_NEON - tristate "NEON accelerated ChaCha20 symmetric cipher" + tristate "NEON accelerated ChaCha20 stream cipher algorithms" depends on KERNEL_MODE_NEON select CRYPTO_BLKCIPHER select CRYPTO_CHACHA20 |