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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.

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Adam Ierymenko 2018-03-13 06:51:17 -07:00
commit beb170e4fb
68 changed files with 37123 additions and 68 deletions
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55
ext/ed25519-amd64-asm/fe25519_pow2523.c Normal file
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#include "fe25519.h"
void fe25519_pow2523(fe25519 *r, const fe25519 *x)
{
fe25519 z2;
fe25519 z9;
fe25519 z11;
fe25519 z2_5_0;
fe25519 z2_10_0;
fe25519 z2_20_0;
fe25519 z2_50_0;
fe25519 z2_100_0;
fe25519 t;
int i;
/* 2 */ fe25519_square(&z2,x);
/* 4 */ fe25519_square(&t,&z2);
/* 8 */ fe25519_square(&t,&t);
/* 9 */ fe25519_mul(&z9,&t,x);
/* 11 */ fe25519_mul(&z11,&z9,&z2);
/* 22 */ fe25519_square(&t,&z11);
/* 2^5 - 2^0 = 31 */ fe25519_mul(&z2_5_0,&t,&z9);
/* 2^6 - 2^1 */ fe25519_square(&t,&z2_5_0);
/* 2^10 - 2^5 */ for (i = 1;i < 5;i++) { fe25519_square(&t,&t); }
/* 2^10 - 2^0 */ fe25519_mul(&z2_10_0,&t,&z2_5_0);
/* 2^11 - 2^1 */ fe25519_square(&t,&z2_10_0);
/* 2^20 - 2^10 */ for (i = 1;i < 10;i++) { fe25519_square(&t,&t); }
/* 2^20 - 2^0 */ fe25519_mul(&z2_20_0,&t,&z2_10_0);
/* 2^21 - 2^1 */ fe25519_square(&t,&z2_20_0);
/* 2^40 - 2^20 */ for (i = 1;i < 20;i++) { fe25519_square(&t,&t); }
/* 2^40 - 2^0 */ fe25519_mul(&t,&t,&z2_20_0);
/* 2^41 - 2^1 */ fe25519_square(&t,&t);
/* 2^50 - 2^10 */ for (i = 1;i < 10;i++) { fe25519_square(&t,&t); }
/* 2^50 - 2^0 */ fe25519_mul(&z2_50_0,&t,&z2_10_0);
/* 2^51 - 2^1 */ fe25519_square(&t,&z2_50_0);
/* 2^100 - 2^50 */ for (i = 1;i < 50;i++) { fe25519_square(&t,&t); }
/* 2^100 - 2^0 */ fe25519_mul(&z2_100_0,&t,&z2_50_0);
/* 2^101 - 2^1 */ fe25519_square(&t,&z2_100_0);
/* 2^200 - 2^100 */ for (i = 1;i < 100;i++) { fe25519_square(&t,&t); }
/* 2^200 - 2^0 */ fe25519_mul(&t,&t,&z2_100_0);
/* 2^201 - 2^1 */ fe25519_square(&t,&t);
/* 2^250 - 2^50 */ for (i = 1;i < 50;i++) { fe25519_square(&t,&t); }
/* 2^250 - 2^0 */ fe25519_mul(&t,&t,&z2_50_0);
/* 2^251 - 2^1 */ fe25519_square(&t,&t);
/* 2^252 - 2^2 */ fe25519_square(&t,&t);
/* 2^252 - 3 */ fe25519_mul(r,&t,x);
}