1 files changed, 6 insertions, 1 deletions
diff --git a/crypto/src/math/ec/custom/sec/SecT571FieldElement.cs b/crypto/src/math/ec/custom/sec/SecT571FieldElement.cs
index 5f28c01be..c9f3aa5c0 100644
--- a/crypto/src/math/ec/custom/sec/SecT571FieldElement.cs
+++ b/crypto/src/math/ec/custom/sec/SecT571FieldElement.cs
@@ -6,7 +6,7 @@ using Org.BouncyCastle.Utilities;
 namespace Org.BouncyCastle.Math.EC.Custom.Sec
 {
     internal class SecT571FieldElement
-        : ECFieldElement
+        : AbstractF2mFieldElement
     {
         protected internal readonly ulong[] x;
 
@@ -150,6 +150,11 @@ namespace Org.BouncyCastle.Math.EC.Custom.Sec
             return new SecT571FieldElement(z);
         }
 
+        public override int Trace()
+        {
+            return (int)SecT571Field.Trace(x);
+        }
+
         public override ECFieldElement Invert()
         {
             ulong[] z = Nat576.Create64();