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make sure 'neg' flag (which does not really matter for GF(2^m), but

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could cause confusion for ECDSA) is set to zero

Submitted by: Sheueling Chang
This commit is contained in:
Bodo Möller 2002-09-16 13:52:48 +00:00
parent 7cc6ec7af7
commit 4c8f79a33e
1 changed files with 5 additions and 0 deletions
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5
crypto/ec/ec2_smpl.c
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@ -364,8 +364,11 @@ int ec_GF2m_simple_point_set_affine_coordinates(const EC_GROUP *group, EC_POINT
} }
if (!BN_copy(&point->X, x)) goto err; if (!BN_copy(&point->X, x)) goto err;
point->X.neg = 0;
if (!BN_copy(&point->Y, y)) goto err; if (!BN_copy(&point->Y, y)) goto err;
point->Y.neg = 0;
if (!BN_copy(&point->Z, BN_value_one())) goto err; if (!BN_copy(&point->Z, BN_value_one())) goto err;
point->Z.neg = 0;
point->Z_is_one = 1; point->Z_is_one = 1;
ret = 1; ret = 1;
@ -396,10 +399,12 @@ int ec_GF2m_simple_point_get_affine_coordinates(const EC_GROUP *group, const EC_
if (x != NULL) if (x != NULL)
{ {
if (!BN_copy(x, &point->X)) goto err; if (!BN_copy(x, &point->X)) goto err;
x->neg = 0;
} }
if (y != NULL) if (y != NULL)
{ {
if (!BN_copy(y, &point->Y)) goto err; if (!BN_copy(y, &point->Y)) goto err;
y->neg = 0;
} }
ret = 1; ret = 1;