1 files changed, 4 insertions, 2 deletions

diff --git a/src/lib/libcrypto/ec/ec_asn1.c b/src/lib/libcrypto/ec/ec_asn1.c
index 175eec5342..145807b611 100644
--- a/src/lib/libcrypto/ec/ec_asn1.c
+++ b/src/lib/libcrypto/ec/ec_asn1.c
@@ -89,7 +89,8 @@ int EC_GROUP_get_trinomial_basis(const EC_GROUP *group, unsigned int *k)
         if (group == NULL)
                 return 0;
 
-        if (EC_GROUP_method_of(group)->group_set_curve != ec_GF2m_simple_group_set_curve
+        if (EC_METHOD_get_field_type(EC_GROUP_method_of(group)) !=
+            NID_X9_62_characteristic_two_field
             || !((group->poly[0] != 0) && (group->poly[1] != 0) && (group->poly[2] == 0)))
                 {
                 ECerr(EC_F_EC_GROUP_GET_TRINOMIAL_BASIS, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
@@ -107,7 +108,8 @@ int EC_GROUP_get_pentanomial_basis(const EC_GROUP *group, unsigned int *k1,
         if (group == NULL)
                 return 0;
 
-        if (EC_GROUP_method_of(group)->group_set_curve != ec_GF2m_simple_group_set_curve
+        if (EC_METHOD_get_field_type(EC_GROUP_method_of(group)) !=
+            NID_X9_62_characteristic_two_field
             || !((group->poly[0] != 0) && (group->poly[1] != 0) && (group->poly[2] != 0) && (group->poly[3] != 0) && (group->poly[4] == 0)))
                 {
                 ECerr(EC_F_EC_GROUP_GET_PENTANOMIAL_BASIS, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);