frost/secp256k1-zkp
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Get rid of variable-length hex string conversions

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This commit is contained in:
Pieter Wuille
2015-01-24 21:52:48 -04:00
parent e84e761915
commit 0768bd55a1
5 changed files with 36 additions and 64 deletions
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31
src/group_impl.h
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@@ -45,25 +45,12 @@ static void secp256k1_ge_neg(secp256k1_ge_t *r, const secp256k1_ge_t *a) {
secp256k1_fe_negate(&r->y, &r->y, 1);
}
static void secp256k1_ge_get_hex(char *r, int *rlen, const secp256k1_ge_t *a) {
char cx[65]; int lx=65;
char cy[65]; int ly=65;
secp256k1_fe_get_hex(cx, &lx, &a->x);
secp256k1_fe_get_hex(cy, &ly, &a->y);
lx = strlen(cx);
ly = strlen(cy);
int len = lx + ly + 3 + 1;
if (*rlen < len) {
*rlen = len;
return;
}
*rlen = len;
r[0] = '(';
memcpy(r+1, cx, lx);
r[1+lx] = ',';
memcpy(r+2+lx, cy, ly);
r[2+lx+ly] = ')';
r[3+lx+ly] = 0;
static void secp256k1_ge_get_hex(char *r131, const secp256k1_ge_t *a) {
r131[0] = '(';
secp256k1_fe_get_hex(r131 + 1, &a->x);
r131[65] = ',';
secp256k1_fe_get_hex(r131 + 66, &a->y);
r131[130] = ')';
}
static void secp256k1_ge_set_gej(secp256k1_ge_t *r, secp256k1_gej_t *a) {
@@ -399,12 +386,10 @@ static void secp256k1_gej_add_ge(secp256k1_gej_t *r, const secp256k1_gej_t *a, c
r->infinity = infinity;
}
static void secp256k1_gej_get_hex(char *r, int *rlen, const secp256k1_gej_t *a) {
static void secp256k1_gej_get_hex(char *r131, const secp256k1_gej_t *a) {
secp256k1_gej_t c = *a;
secp256k1_ge_t t; secp256k1_ge_set_gej(&t, &c);
secp256k1_ge_get_hex(r, rlen, &t);
secp256k1_ge_get_hex(r131, &t);
}
#ifdef USE_ENDOMORPHISM