diff --git a/crypto/test/src/crypto/test/TnepresTest.cs b/crypto/test/src/crypto/test/TnepresTest.cs
new file mode 100644
index 000000000..07308dbff
--- /dev/null
+++ b/crypto/test/src/crypto/test/TnepresTest.cs
@@ -0,0 +1,155 @@
+using System;
+
+using NUnit.Framework;
+
+using Org.BouncyCastle.Crypto.Engines;
+using Org.BouncyCastle.Crypto.Parameters;
+using Org.BouncyCastle.Utilities;
+using Org.BouncyCastle.Utilities.Encoders;
+using Org.BouncyCastle.Utilities.Test;
+
+namespace Org.BouncyCastle.Crypto.Tests
+{
+ /**
+ * Test vectors based on Floppy 4 of the Serpent AES submission.
+ */
+ [TestFixture]
+ public class TnepresTest
+ : CipherTest
+ {
+ static SimpleTest[] tests =
+ {
+ new BlockCipherVectorTest(0, new TnepresEngine(),
+ new KeyParameter(Hex.Decode("0000000000000000000000000000000000000000000000000000000000000000")),
+ "00000000000000000000000000000000", "8910494504181950f98dd998a82b6749"),
+ new BlockCipherVectorTest(1, new TnepresEngine(),
+ new KeyParameter(Hex.Decode("00000000000000000000000000000000")),
+ "80000000000000000000000000000000", "10b5ffb720b8cb9002a1142b0ba2e94a"),
+ new BlockCipherVectorTest(2, new TnepresEngine(),
+ new KeyParameter(Hex.Decode("00000000000000000000000000000000")),
+ "00000000008000000000000000000000", "4f057a42d8d5bd9746e434680ddcd5e5"),
+ new BlockCipherVectorTest(3, new TnepresEngine(),
+ new KeyParameter(Hex.Decode("00000000000000000000000000000000")),
+ "00000000000000000000400000000000", "99407bf8582ef12550886ef5b6f169b9"),
+ new BlockCipherVectorTest(4, new TnepresEngine(),
+ new KeyParameter(Hex.Decode("000000000000000000000000000000000000000000000000")),
+ "40000000000000000000000000000000", "d522a3b8d6d89d4d2a124fdd88f36896"),
+ new BlockCipherVectorTest(5, new TnepresEngine(),
+ new KeyParameter(Hex.Decode("000000000000000000000000000000000000000000000000")),
+ "00000000000200000000000000000000", "189b8ec3470085b3da97e82ca8964e32"),
+ new BlockCipherVectorTest(6, new TnepresEngine(),
+ new KeyParameter(Hex.Decode("000000000000000000000000000000000000000000000000")),
+ "00000000000000000000008000000000", "f77d868cf760b9143a89809510ccb099"),
+ new BlockCipherVectorTest(7, new TnepresEngine(),
+ new KeyParameter(Hex.Decode("0000000000000000000000000000000000000000000000000000000000000000")),
+ "08000000000000000000000000000000", "d43b7b981b829342fce0e3ec6f5f4c82"),
+ new BlockCipherVectorTest(8, new TnepresEngine(),
+ new KeyParameter(Hex.Decode("0000000000000000000000000000000000000000000000000000000000000000")),
+ "00000000000000000100000000000000", "0bf30e1a0c33ccf6d5293177886912a7"),
+ new BlockCipherVectorTest(9, new TnepresEngine(),
+ new KeyParameter(Hex.Decode("0000000000000000000000000000000000000000000000000000000000000000")),
+ "00000000000000000000000000000001", "6a7f3b805d2ddcba49b89770ade5e507"),
+ new BlockCipherVectorTest(10, new TnepresEngine(),
+ new KeyParameter(Hex.Decode("80000000000000000000000000000000")),
+ "00000000000000000000000000000000", "49afbfad9d5a34052cd8ffa5986bd2dd"),
+ new BlockCipherVectorTest(11, new TnepresEngine(),
+ new KeyParameter(Hex.Decode("000000000000000000000000004000000000000000000000")),
+ "00000000000000000000000000000000", "ba8829b1de058c4b48615d851fc74f17"),
+ new BlockCipherVectorTest(12, new TnepresEngine(),
+ new KeyParameter(Hex.Decode("0000000000000000000000000000000000000000000000000000000100000000")),
+ "00000000000000000000000000000000", "89f64377bf1e8a46c8247044e8056a98"),
+/*
+ new BlockCipherMonteCarloTest(13, 10000, new TnepresEngine(),
+ new KeyParameter(Hex.Decode("47f5f881daab9b67b43bd1342e339c19")),
+ "7a4f7db38c52a8b711b778a38d203b6b", "003380e19f10065740394f48e2fe80b7"),
+*/
+ new BlockCipherMonteCarloTest(13, 100, new TnepresEngine(),
+ new KeyParameter(Hex.Decode("47f5f881daab9b67b43bd1342e339c19")),
+ "7a4f7db38c52a8b711b778a38d203b6b", "4db75303d815c2f7cc6ca935d1c5a046"),
+/*
+ new BlockCipherMonteCarloTest(14, 10000, new TnepresEngine(),
+ new KeyParameter(Hex.Decode("31fba879ebc5e80df35e6fa33eaf92d6")),
+ "70a05e12f74589009692a337f53ff614", "afb5425426906db26b70bdf842ac5400"),
+*/
+ new BlockCipherMonteCarloTest(14, 100, new TnepresEngine(),
+ new KeyParameter(Hex.Decode("31fba879ebc5e80df35e6fa33eaf92d6")),
+ "70a05e12f74589009692a337f53ff614", "fc53a50f4d3bc9836001893d2f41742d"),
+/*
+ new BlockCipherMonteCarloTest(15, 10000, new TnepresEngine(),
+ new KeyParameter(Hex.Decode("bde6dd392307984695aee80e574f9977caae9aa78eda53e8")),
+ "9cc523d034a93740a0aa4e2054bb34d8", "1949d506ada7de1f1344986e8ea049b2"),
+*/
+ new BlockCipherMonteCarloTest(15, 100, new TnepresEngine(),
+ new KeyParameter(Hex.Decode("bde6dd392307984695aee80e574f9977caae9aa78eda53e8")),
+ "9cc523d034a93740a0aa4e2054bb34d8", "77117e6a9e80f40b2a36b7d755573c2d"),
+/*
+ new BlockCipherMonteCarloTest(16, 10000, new TnepresEngine(),
+ new KeyParameter(Hex.Decode("60f6f8ad4290699dc50921a1bbcca92da914e7d9cf01a9317c79c0af8f2487a1")),
+ "ee1a61106fae2d381d686cbf854bab65", "e57f45559027cb1f2ed9603d814e1c34"),
+*/
+ new BlockCipherMonteCarloTest(16, 100, new TnepresEngine(),
+ new KeyParameter(Hex.Decode("60f6f8ad4290699dc50921a1bbcca92da914e7d9cf01a9317c79c0af8f2487a1")),
+ "ee1a61106fae2d381d686cbf854bab65", "dcd7f13ea0dcdfd0139d1a42e2ffb84b")
+ };
+
+ public TnepresTest()
+ : base(tests, new TnepresEngine(), new KeyParameter(new byte[32]))
+ {
+ }
+
+ public override void PerformTest()
+ {
+ base.PerformTest();
+
+ DoCbcMonte(new byte[16], new byte[16], new byte[16], Hex.Decode("9ea101ecebaa41c712bcb0d9bab3e2e4"));
+ DoCbcMonte(Hex.Decode("9ea101ecebaa41c712bcb0d9bab3e2e4"), Hex.Decode("9ea101ecebaa41c712bcb0d9bab3e2e4"), Hex.Decode("b4813d8a66244188b9e92c75913fa2f4"), Hex.Decode("f86b2c265b9c75869f31e2c684c13e9f"));
+ }
+
+ private void DoCbcMonte(byte[] key, byte[] iv, byte[] pt, byte[] expected)
+ {
+ IBlockCipher c = new TnepresEngine();
+
+ byte[] ct = new byte[16];
+
+ Array.Copy(iv, 0, ct, 0, 16);
+
+ for (int i = 0; i < 10000; i++)
+ {
+ for (int k = 0; k != iv.Length; k++)
+ {
+ iv[k] ^= pt[k];
+ }
+ Array.Copy(ct, 0, pt, 0, 16);
+
+ c.Init(true, new KeyParameter(key));
+
+ c.ProcessBlock(iv, 0, ct, 0);
+
+ Array.Copy(ct, 0, iv, 0, 16);
+ }
+
+ if (!Arrays.AreEqual(expected, ct))
+ {
+ Fail("CBC monte test failed");
+ }
+ }
+
+ public override string Name
+ {
+ get { return "Tnepres"; }
+ }
+
+ public static void Main(string[] args)
+ {
+ RunTest(new TnepresTest());
+ }
+
+ [Test]
+ public void TestFunction()
+ {
+ string resultText = Perform().ToString();
+
+ Assert.AreEqual(Name + ": Okay", resultText);
+ }
+ }
+}
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