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Differential D8044 Diff 24969 src/secp256k1/src/scalar_8x32_impl.h

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src/secp256k1/src/scalar_8x32_impl.h

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} }
static void secp256k1_scalar_sqr(secp256k1_scalar *r, const secp256k1_scalar *a) { static void secp256k1_scalar_sqr(secp256k1_scalar *r, const secp256k1_scalar *a) {
uint32_t l[16]; uint32_t l[16];
secp256k1_scalar_sqr_512(l, a); secp256k1_scalar_sqr_512(l, a);
secp256k1_scalar_reduce_512(r, l); secp256k1_scalar_reduce_512(r, l);
} }
#ifdef USE_ENDOMORPHISM
static void secp256k1_scalar_split_128(secp256k1_scalar *r1, secp256k1_scalar *r2, const secp256k1_scalar *k) { static void secp256k1_scalar_split_128(secp256k1_scalar *r1, secp256k1_scalar *r2, const secp256k1_scalar *k) {
r1->d[0] = k->d[0]; r1->d[0] = k->d[0];
r1->d[1] = k->d[1]; r1->d[1] = k->d[1];
r1->d[2] = k->d[2]; r1->d[2] = k->d[2];
r1->d[3] = k->d[3]; r1->d[3] = k->d[3];
r1->d[4] = 0; r1->d[4] = 0;
r1->d[5] = 0; r1->d[5] = 0;
r1->d[6] = 0; r1->d[6] = 0;
r1->d[7] = 0; r1->d[7] = 0;
r2->d[0] = k->d[4]; r2->d[0] = k->d[4];
r2->d[1] = k->d[5]; r2->d[1] = k->d[5];
r2->d[2] = k->d[6]; r2->d[2] = k->d[6];
r2->d[3] = k->d[7]; r2->d[3] = k->d[7];
r2->d[4] = 0; r2->d[4] = 0;
r2->d[5] = 0; r2->d[5] = 0;
r2->d[6] = 0; r2->d[6] = 0;
r2->d[7] = 0; r2->d[7] = 0;
} }
#endif
SECP256K1_INLINE static int secp256k1_scalar_eq(const secp256k1_scalar *a, const secp256k1_scalar *b) { SECP256K1_INLINE static int secp256k1_scalar_eq(const secp256k1_scalar *a, const secp256k1_scalar *b) {
return ((a->d[0] ^ b->d[0]) | (a->d[1] ^ b->d[1]) | (a->d[2] ^ b->d[2]) | (a->d[3] ^ b->d[3]) | (a->d[4] ^ b->d[4]) | (a->d[5] ^ b->d[5]) | (a->d[6] ^ b->d[6]) | (a->d[7] ^ b->d[7])) == 0; return ((a->d[0] ^ b->d[0]) | (a->d[1] ^ b->d[1]) | (a->d[2] ^ b->d[2]) | (a->d[3] ^ b->d[3]) | (a->d[4] ^ b->d[4]) | (a->d[5] ^ b->d[5]) | (a->d[6] ^ b->d[6]) | (a->d[7] ^ b->d[7])) == 0;
} }
SECP256K1_INLINE static void secp256k1_scalar_mul_shift_var(secp256k1_scalar *r, const secp256k1_scalar *a, const secp256k1_scalar *b, unsigned int shift) { SECP256K1_INLINE static void secp256k1_scalar_mul_shift_var(secp256k1_scalar *r, const secp256k1_scalar *a, const secp256k1_scalar *b, unsigned int shift) {
uint32_t l[16]; uint32_t l[16];
unsigned int shiftlimbs; unsigned int shiftlimbs;
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