diff --git a/crypto/test/src/crypto/test/NistEccTest.cs b/crypto/test/src/crypto/test/NistEccTest.cs
new file mode 100644
index 000000000..2b0edb63d
--- /dev/null
+++ b/crypto/test/src/crypto/test/NistEccTest.cs
@@ -0,0 +1,106 @@
+using System;
+using System.Collections;
+using System.IO;
+using System.Text.RegularExpressions;
+using NUnit.Framework;
+using Org.BouncyCastle.Asn1.X9;
+using Org.BouncyCastle.Math;
+using Org.BouncyCastle.Math.EC;
+using Org.BouncyCastle.Utilities.Test;
+
+namespace Org.BouncyCastle.Crypto.Tests
+{
+ [TestFixture]
+ public class NistEccTest : SimpleTest
+ {
+ public override string Name { get; } = "NistEcc";
+
+ public override void PerformTest()
+ {
+ foreach (object[] testVector in CollectTestVectors())
+ {
+ TestMultiply(
+ testVector[0] as string,
+ testVector[1] as BigInteger,
+ testVector[2] as BigInteger,
+ testVector[3] as BigInteger
+ );
+ }
+ }
+
+ public IEnumerable CollectTestVectors()
+ {
+ ArrayList testVectors = new ArrayList();
+ string curve = null;
+ BigInteger k = null;
+ BigInteger x = null;
+ BigInteger y = null;
+
+ using (StreamReader r = new StreamReader(SimpleTest.GetTestDataAsStream("crypto.nist_ecc.txt")))
+ {
+ string line;
+ while (null != (line = r.ReadLine()))
+ {
+ Regex capture = new Regex(@"^ ?(\w+):? =? ?(\w+)", RegexOptions.Compiled);
+ Match data = capture.Match(line);
+
+ if (!data.Success) continue;
+ string nistKey = data.Groups[1].Value;
+ string nistValue = data.Groups[2].Value;
+ switch (nistKey)
+ {
+ case "Curve":
+ // Change curve name from LNNN to L-NNN ie: P256 to P-256
+ curve = $"{nistValue.Substring(0, 1)}-{nistValue.Substring(1)}";
+ break;
+ case "k":
+ k = new BigInteger(nistValue, 10);
+ break;
+ case "x":
+ x = new BigInteger(nistValue, radix: 16);
+ break;
+ case "y":
+ y = new BigInteger(nistValue, radix: 16);
+ break;
+ }
+
+ if (null != curve && null != k && null != x && null != y)
+ {
+ testVectors.Add(new object[] {curve, k, x, y});
+ k = null;
+ x = null;
+ y = null;
+ }
+ }
+ }
+
+ return testVectors;
+ }
+
+ public void TestMultiply(string curve, BigInteger k, BigInteger expectedX, BigInteger expectedY)
+ {
+ // Arrange
+ X9ECParameters x9EcParameters = Asn1.Nist.NistNamedCurves.GetByName(curve);
+
+ // Act
+ ECPoint ecPoint = x9EcParameters.G.Multiply(k).Normalize();
+
+ // Assert
+ IsEquals("Unexpected X Coordinate", expectedX, ecPoint.AffineXCoord.ToBigInteger());
+ IsEquals("Unexpected Y Coordinate", expectedY, ecPoint.AffineYCoord.ToBigInteger());
+ }
+
+ public static void Main(string[] args)
+ {
+ RunTest(new NistEccTest());
+ }
+
+ [Test]
+ public void TestFunction()
+ {
+ string resultText = Perform().ToString();
+
+ Assert.AreEqual(Name + ": Okay", resultText);
+ }
+ }
+}
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