diff --git a/Lidgren.Network/Encryption/NetAESEncryption.cs b/Lidgren.Network/Encryption/NetAESEncryption.cs
index 5ed5582..bb6eb4d 100644
--- a/Lidgren.Network/Encryption/NetAESEncryption.cs
+++ b/Lidgren.Network/Encryption/NetAESEncryption.cs
@@ -7,18 +7,30 @@ namespace Lidgren.Network
 	public class NetAESEncryption : NetCryptoProviderBase
 	{
 		public NetAESEncryption(NetPeer peer)
+#if UNITY_WEBPLAYER
+			: base(peer, new RijndaelManaged())
+#else
 			: base(peer, new AesCryptoServiceProvider())
+#endif
 		{
 		}
 
 		public NetAESEncryption(NetPeer peer, string key)
+#if UNITY_WEBPLAYER
+			: base(peer, new RijndaelManaged())
+#else
 			: base(peer, new AesCryptoServiceProvider())
+#endif
 		{
 			SetKey(key);
 		}
 
 		public NetAESEncryption(NetPeer peer, byte[] data, int offset, int count)
+#if UNITY_WEBPLAYER
+			: base(peer, new RijndaelManaged())
+#else
 			: base(peer, new AesCryptoServiceProvider())
+#endif
 		{
 			SetKey(data, offset, count);
 		}