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Merge pull request #1668 from Gorachya/master

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Update sm9_z256.c
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Zhi Guan
2024-04-29 22:58:20 +08:00
committed by GitHub
parent bce16e1835 0be17d59ec
commit f17d25abac
1 changed files with 2 additions and 6 deletions
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8
src/sm9_z256.c
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@@ -2849,14 +2849,10 @@ void sm9_z256_point_to_affine(SM9_Z256_AFFINE_POINT *Q, const SM9_Z256_POINT *P)
}
sm9_z256_modp_mont_inv(z_inv, P->Z);
if (Q->Y) {
sm9_z256_modp_mont_mul(Q->Y, P->Y, z_inv);
}
sm9_z256_modp_mont_mul(Q->Y, P->Y, z_inv);
sm9_z256_modp_mont_sqr(z_inv, z_inv);
sm9_z256_modp_mont_mul(Q->X, P->X, z_inv);
if (Q->Y) {
sm9_z256_modp_mont_mul(Q->Y, Q->Y, z_inv);
}
sm9_z256_modp_mont_mul(Q->Y, Q->Y, z_inv);
}
// Multiplication with lw[0] + lw[1] * w^2 + lw[2] * w^3