From afaf712e99a7e52e2520335ddefee6a9d84a6db5 Mon Sep 17 00:00:00 2001 From: Ard Biesheuvel Date: Wed, 11 Jan 2017 16:41:50 +0000 Subject: crypto: arm/chacha20 - implement NEON version based on SSE3 code This is a straight port to ARM/NEON of the x86 SSE3 implementation of the ChaCha20 stream cipher. It uses the new skcipher walksize attribute to process the input in strides of 4x the block size. Signed-off-by: Ard Biesheuvel Signed-off-by: Herbert Xu --- arch/arm/crypto/Kconfig | 6 ++++++ 1 file changed, 6 insertions(+) (limited to 'arch/arm/crypto/Kconfig') diff --git a/arch/arm/crypto/Kconfig b/arch/arm/crypto/Kconfig index 13f1b4c289d4..2f3339f015d3 100644 --- a/arch/arm/crypto/Kconfig +++ b/arch/arm/crypto/Kconfig @@ -130,4 +130,10 @@ config CRYPTO_CRC32_ARM_CE depends on KERNEL_MODE_NEON && CRC32 select CRYPTO_HASH +config CRYPTO_CHACHA20_NEON + tristate "NEON accelerated ChaCha20 symmetric cipher" + depends on KERNEL_MODE_NEON + select CRYPTO_BLKCIPHER + select CRYPTO_CHACHA20 + endif -- cgit