diff options
Diffstat (limited to 'crypto/ec/ec2_smpl.c')
| -rw-r--r-- | crypto/ec/ec2_smpl.c | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/crypto/ec/ec2_smpl.c b/crypto/ec/ec2_smpl.c index 5cd1eac41fc3..522d036ca1da 100644 --- a/crypto/ec/ec2_smpl.c +++ b/crypto/ec/ec2_smpl.c @@ -174,8 +174,10 @@ int ec_GF2m_simple_group_copy(EC_GROUP *dest, const EC_GROUP *src) dest->poly[2] = src->poly[2]; dest->poly[3] = src->poly[3]; dest->poly[4] = src->poly[4]; - bn_wexpand(&dest->a, (int)(dest->poly[0] + BN_BITS2 - 1) / BN_BITS2); - bn_wexpand(&dest->b, (int)(dest->poly[0] + BN_BITS2 - 1) / BN_BITS2); + if(bn_wexpand(&dest->a, (int)(dest->poly[0] + BN_BITS2 - 1) / BN_BITS2) == NULL) + return 0; + if(bn_wexpand(&dest->b, (int)(dest->poly[0] + BN_BITS2 - 1) / BN_BITS2) == NULL) + return 0; for (i = dest->a.top; i < dest->a.dmax; i++) dest->a.d[i] = 0; for (i = dest->b.top; i < dest->b.dmax; i++) dest->b.d[i] = 0; return 1; @@ -199,12 +201,12 @@ int ec_GF2m_simple_group_set_curve(EC_GROUP *group, /* group->a */ if (!BN_GF2m_mod_arr(&group->a, a, group->poly)) goto err; - bn_wexpand(&group->a, (int)(group->poly[0] + BN_BITS2 - 1) / BN_BITS2); + if(bn_wexpand(&group->a, (int)(group->poly[0] + BN_BITS2 - 1) / BN_BITS2) == NULL) goto err; for (i = group->a.top; i < group->a.dmax; i++) group->a.d[i] = 0; /* group->b */ if (!BN_GF2m_mod_arr(&group->b, b, group->poly)) goto err; - bn_wexpand(&group->b, (int)(group->poly[0] + BN_BITS2 - 1) / BN_BITS2); + if(bn_wexpand(&group->b, (int)(group->poly[0] + BN_BITS2 - 1) / BN_BITS2) == NULL) goto err; for (i = group->b.top; i < group->b.dmax; i++) group->b.d[i] = 0; ret = 1; |