frost/secp256k1-zkp
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Make num optional

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This commit is contained in:
Pieter Wuille
2014-11-28 01:23:55 +01:00
parent 659b554d7b
commit 597128d389
9 changed files with 46 additions and 6 deletions
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6
src/scalar_impl.h
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@@ -25,7 +25,9 @@
#endif
typedef struct {
#ifndef USE_NUM_NONE
secp256k1_num_t order;
#endif
#ifdef USE_ENDOMORPHISM
secp256k1_num_t a1b2, b1, a2;
#endif
@@ -40,6 +42,7 @@ static void secp256k1_scalar_start(void) {
/* Allocate. */
secp256k1_scalar_consts_t *ret = (secp256k1_scalar_consts_t*)malloc(sizeof(secp256k1_scalar_consts_t));
#ifndef USE_NUM_NONE
static const unsigned char secp256k1_scalar_consts_order[] = {
0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,
0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFE,
@@ -47,6 +50,7 @@ static void secp256k1_scalar_start(void) {
0xBF,0xD2,0x5E,0x8C,0xD0,0x36,0x41,0x41
};
secp256k1_num_set_bin(&ret->order, secp256k1_scalar_consts_order, sizeof(secp256k1_scalar_consts_order));
#endif
#ifdef USE_ENDOMORPHISM
static const unsigned char secp256k1_scalar_consts_a1b2[] = {
0x30,0x86,0xd2,0x21,0xa7,0xd4,0x6b,0xcd,
@@ -80,6 +84,7 @@ static void secp256k1_scalar_stop(void) {
free(c);
}
#ifndef USE_NUM_NONE
static void secp256k1_scalar_get_num(secp256k1_num_t *r, const secp256k1_scalar_t *a) {
unsigned char c[32];
secp256k1_scalar_get_b32(c, a);
@@ -89,6 +94,7 @@ static void secp256k1_scalar_get_num(secp256k1_num_t *r, const secp256k1_scalar_
static void secp256k1_scalar_order_get_num(secp256k1_num_t *r) {
*r = secp256k1_scalar_consts->order;
}
#endif
static void secp256k1_scalar_inverse(secp256k1_scalar_t *r, const secp256k1_scalar_t *x) {
/* First compute x ^ (2^N - 1) for some values of N. */