int EC_POINT_set_compressed_coordinates(const EC_GROUP *group, EC_POINT *point,
const BIGNUM *x, int y_bit, BN_CTX *ctx)
{
if (group->meth->point_set_compressed_coordinates == NULL
&& !(group->meth->flags & EC_FLAGS_DEFAULT_OCT)) {
ECerr(EC_F_EC_POINT_SET_COMPRESSED_COORDINATES,
ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
return 0;
}
if (!ec_point_is_compat(point, group)) {
ECerr(EC_F_EC_POINT_SET_COMPRESSED_COORDINATES,
EC_R_INCOMPATIBLE_OBJECTS);
return 0;
}
if (group->meth->flags & EC_FLAGS_DEFAULT_OCT) {
if (group->meth->field_type == NID_X9_62_prime_field)
return ec_GFp_simple_set_compressed_coordinates(group, point, x,
y_bit, ctx);
else
#ifdef OPENSSL_NO_EC2M
{
ECerr(EC_F_EC_POINT_SET_COMPRESSED_COORDINATES,
EC_R_GF2M_NOT_SUPPORTED);
return 0;
}
#else
return ec_GF2m_simple_set_compressed_coordinates(group, point, x,
y_bit, ctx);
#endif
}
return group->meth->point_set_compressed_coordinates(group, point, x,
y_bit, ctx);
}
int EC_POINT_set_compressed_coordinates_GF2m(const EC_GROUP *group, EC_POINT *point,
const BIGNUM *x, int y_bit, BN_CTX *ctx)
{
if (group->meth->point_set_compressed_coordinates == 0
&& !(group->meth->flags & EC_FLAGS_DEFAULT_OCT))
{
ECerr(EC_F_EC_POINT_SET_COMPRESSED_COORDINATES_GF2M, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
return 0;
}
if (group->meth != point->meth)
{
ECerr(EC_F_EC_POINT_SET_COMPRESSED_COORDINATES_GF2M, EC_R_INCOMPATIBLE_OBJECTS);
return 0;
}
if(group->meth->flags & EC_FLAGS_DEFAULT_OCT)
{
if (group->meth->field_type == NID_X9_62_prime_field)
return ec_GFp_simple_set_compressed_coordinates(
group, point, x, y_bit, ctx);
else
return ec_GF2m_simple_set_compressed_coordinates(
group, point, x, y_bit, ctx);
}
return group->meth->point_set_compressed_coordinates(group, point, x, y_bit, ctx);
}
