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Detailed comments for secp256k1_scalar_split_lambda

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This commit is contained in:
Russell O'Connor
2020-09-22 11:01:47 -04:00
committed by Pieter Wuille
parent 76ed922a5f
commit acab934d24
4 changed files with 154 additions and 35 deletions
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18
src/scalar_8x32_impl.h
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@@ -673,19 +673,19 @@ static void secp256k1_scalar_sqr(secp256k1_scalar *r, const secp256k1_scalar *a)
}
#ifdef USE_ENDOMORPHISM
static void secp256k1_scalar_split_128(secp256k1_scalar *r1, secp256k1_scalar *r2, const secp256k1_scalar *a) {
r1->d[0] = a->d[0];
r1->d[1] = a->d[1];
r1->d[2] = a->d[2];
r1->d[3] = a->d[3];
static void secp256k1_scalar_split_128(secp256k1_scalar *r1, secp256k1_scalar *r2, const secp256k1_scalar *k) {
r1->d[0] = k->d[0];
r1->d[1] = k->d[1];
r1->d[2] = k->d[2];
r1->d[3] = k->d[3];
r1->d[4] = 0;
r1->d[5] = 0;
r1->d[6] = 0;
r1->d[7] = 0;
r2->d[0] = a->d[4];
r2->d[1] = a->d[5];
r2->d[2] = a->d[6];
r2->d[3] = a->d[7];
r2->d[0] = k->d[4];
r2->d[1] = k->d[5];
r2->d[2] = k->d[6];
r2->d[3] = k->d[7];
r2->d[4] = 0;
r2->d[5] = 0;
r2->d[6] = 0;