From 125e93ac90fab535316f55695f14dde8e9c76c97 Mon Sep 17 00:00:00 2001
From: Peter Dettman <peter.dettman@bouncycastle.org>
Date: Mon, 28 Dec 2015 14:59:52 +0700
Subject: Optimized Sqrt and Trace for custom binary curves

---
 crypto/test/src/math/ec/test/ECPointTest.cs | 13 +++++++++++++
 1 file changed, 13 insertions(+)

(limited to 'crypto/test/src/math')

diff --git a/crypto/test/src/math/ec/test/ECPointTest.cs b/crypto/test/src/math/ec/test/ECPointTest.cs
index 3c10170f7..57f838f9f 100644
--- a/crypto/test/src/math/ec/test/ECPointTest.cs
+++ b/crypto/test/src/math/ec/test/ECPointTest.cs
@@ -437,6 +437,19 @@ namespace Org.BouncyCastle.Math.EC.Tests
                     }
                 }
             }
+            else if (ECAlgorithms.IsF2mCurve(c))
+            {
+                int m = c.FieldSize;
+                BigInteger x = new BigInteger(m, secRand);
+                ECFieldElement fe = c.FromBigInteger(x);
+                for (int i = 0; i < 100; ++i)
+                {
+                    ECFieldElement sq = fe.Square();
+                    ECFieldElement check = sq.Sqrt();
+                    Assert.AreEqual(fe, check);
+                    fe = sq;
+                }
+            }
         }
 
         private void ImplAddSubtractMultiplyTwiceEncodingTestAllCoords(X9ECParameters x9ECParameters)
-- 
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