Move AesEncryptLayer to samples

Author: yacuzo

LiteNetLib/Layers/AesEncryptLayer.cs LibSample/AesEncryptLayer.csLiteNetLib/Layers/AesEncryptLayer.cs renamed to LibSample/AesEncryptLayer.cs

@@ -1,7 +1,8 @@
-using System;
+using LiteNetLib.Layers;
+using System;
 using System.Security.Cryptography;
 
-namespace LiteNetLib.Layers
+namespace LibSample
 {
     /// <summary>
     /// Uses AES encryption in CBC mode. Make sure you handle your key properly.

LibSample/AesEncryptionTest.cs

@@ -0,0 +1,54 @@
+using System;
+using System.Linq;
+using System.Security.Cryptography;
+using System.Text;
+
+namespace LibSample
+{
+    class AesEncryptionTest
+    {
+        public void Run() => AesLayerEncryptDecrypt();
+
+        private void AesLayerEncryptDecrypt()
+        {
+            var keyGen = RandomNumberGenerator.Create();
+            byte[] key = new byte[AesEncryptLayer.KeySizeInBytes];
+            keyGen.GetBytes(key);
+            const string testData = "This text is long enough to need multiple blocks to encrypt";
+
+            var outboudLayer = new AesEncryptLayer(key);
+            byte[] outbound = Encoding.ASCII.GetBytes(testData);
+            int lengthOfPacket = outbound.Length;
+            int start = 0;
+            int length = outbound.Length;
+            outboudLayer.ProcessOutBoundPacket(ref outbound, ref start, ref length);
+
+            int minLenth = lengthOfPacket + AesEncryptLayer.BlockSizeInBytes;
+            int maxLength = lengthOfPacket + outboudLayer.ExtraPacketSizeForLayer;
+            if (length < minLenth || length > maxLength)
+            {
+                throw new Exception("Packet length out of bounds");
+            }
+
+            var inboundLayer = new AesEncryptLayer(key);
+            //Copy array so we dont read and write to same array
+            byte[] inboundData = new byte[outbound.Length];
+            outbound.CopyTo(inboundData, 0);
+            inboundLayer.ProcessInboundPacket(ref inboundData, ref length);
+
+            Console.WriteLine(Encoding.ASCII.GetString(inboundData, 0, length));
+            byte[] expectedPlaintext = Encoding.ASCII.GetBytes(testData);
+
+            var isEqualLength = expectedPlaintext.Length == length;
+            var areContentEqual = expectedPlaintext.SequenceEqual(inboundData);
+            if (isEqualLength && areContentEqual)
+            {
+                Console.WriteLine("Test complete");
+            }
+            else
+            {
+                throw new Exception("Test failed, decrypted data not equal to original");
+            }
+        }
+    }
+}

LibSample/Program.cs

@@ -26,6 +26,7 @@ static void Main(string[] args)
             //new SerializerBenchmark().Run();
             new SpeedBench().Run();
             //new PacketProcessorExample().Run();
+            //new AesEncryptionTest().Run();
         }
     }
 }