crypto: curve25519 - x86_64 library and KPP implementations

This implementation is the fastest available x86_64 implementation, and unlike Sandy2x, it doesn't requie use of the floating point registers at all. Instead it makes use of BMI2 and ADX, available on recent microarchitectures. The implementation was written by Armando Faz-Hernández with contributions (upstream) from Samuel Neves and me, in addition to further changes in the kernel implementation from us. Signed-off-by: Jason A. Donenfeld <[email protected]> Signed-off-by: Samuel Neves <[email protected]> Co-developed-by: Samuel Neves <[email protected]> [ardb: - move to arch/x86/crypto - wire into lib/crypto framework - implement crypto API KPP hooks ] Signed-off-by: Ard Biesheuvel <[email protected]> Signed-off-by: Herbert Xu <[email protected]>
starfive-tech · Nov 17, 2019 · bb611bd · bb611bd
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diff --git a/arch/x86/crypto/Makefile b/arch/x86/crypto/Makefile
@@ -39,6 +39,7 @@ obj-$(CONFIG_CRYPTO_AEGIS128_AESNI_SSE2) += aegis128-aesni.o
 
 obj-$(CONFIG_CRYPTO_NHPOLY1305_SSE2) += nhpoly1305-sse2.o
 obj-$(CONFIG_CRYPTO_NHPOLY1305_AVX2) += nhpoly1305-avx2.o
+obj-$(CONFIG_CRYPTO_CURVE25519_X86) += curve25519-x86_64.o
 
 # These modules require assembler to support AVX.
 ifeq ($(avx_supported),yes)