From beb170e4fb4a42cf3770a731f222a63f0bdfe0f3 Mon Sep 17 00:00:00 2001 From: Adam Ierymenko Date: Tue, 13 Mar 2018 06:51:17 -0700 Subject: Use X64 ASM ed25519 signatures on Linux/x64, which are about 10X faster. Will matter a lot for network controllers, not so much for other things. --- ext/ed25519-amd64-asm/keypair.c | 25 +++++++++++++++++++++++++ 1 file changed, 25 insertions(+) create mode 100644 ext/ed25519-amd64-asm/keypair.c (limited to 'ext/ed25519-amd64-asm/keypair.c') diff --git a/ext/ed25519-amd64-asm/keypair.c b/ext/ed25519-amd64-asm/keypair.c new file mode 100644 index 00000000..7e094710 --- /dev/null +++ b/ext/ed25519-amd64-asm/keypair.c @@ -0,0 +1,25 @@ +#include +#include "crypto_sign.h" +#include "crypto_hash_sha512.h" +#include "randombytes.h" +#include "ge25519.h" + +int crypto_sign_keypair(unsigned char *pk,unsigned char *sk) +{ + unsigned char az[64]; + sc25519 scsk; + ge25519 gepk; + + randombytes(sk,32); + crypto_hash_sha512(az,sk,32); + az[0] &= 248; + az[31] &= 127; + az[31] |= 64; + + sc25519_from32bytes(&scsk,az); + + ge25519_scalarmult_base(&gepk, &scsk); + ge25519_pack(pk, &gepk); + memmove(sk + 32,pk,32); + return 0; +} -- cgit v1.2.3