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97 lines
2.9 KiB
C#
97 lines
2.9 KiB
C#
using System;
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using System.Text;
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using Lidgren.Network;
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using System.Security;
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namespace UnitTests
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{
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public static class EncryptionTests
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{
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public static void Run(NetPeer peer)
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{
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//
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// Test XTEA
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//
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NetXtea xtea = new NetXtea("TopSecret");
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byte[] original = new byte[16];
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NetRandom.Instance.NextBytes(original);
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byte[] encrypted = new byte[original.Length];
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xtea.EncryptBlock(original, 0, encrypted, 0);
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xtea.EncryptBlock(original, 8, encrypted, 8);
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byte[] decrypted = new byte[original.Length];
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xtea.DecryptBlock(encrypted, 0, decrypted, 0);
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xtea.DecryptBlock(encrypted, 8, decrypted, 8);
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// compare!
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for (int i = 0; i < original.Length; i++)
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if (original[i] != decrypted[i])
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throw new NetException("XTEA fail!");
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Console.WriteLine("XTEA OK");
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NetOutgoingMessage om = peer.CreateMessage();
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om.Write("Hallon");
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om.Write(42);
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om.Write(5, 5);
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om.Write(true);
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om.Write("kokos");
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om.Encrypt(xtea);
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// convert to incoming message
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NetIncomingMessage im = Program.CreateIncomingMessage(om.PeekDataBuffer(), om.LengthBits);
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im.Decrypt(xtea);
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if (im.ReadString() != "Hallon")
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throw new NetException("fail");
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if (im.ReadInt32() != 42)
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throw new NetException("fail");
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if (im.ReadInt32(5) != 5)
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throw new NetException("fail");
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if (im.ReadBoolean() != true)
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throw new NetException("fail");
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if (im.ReadString() != "kokos")
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throw new NetException("fail");
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byte[] salt = NetSRP.CreateRandomKey(16);
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byte[] x = NetSRP.ComputePrivateKey("user", "password", salt);
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byte[] v = NetSRP.ComputeServerVerifier(x);
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//Console.WriteLine("v = " + NetUtility.ToHexString(v));
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byte[] a = NetSRP.CreateRandomKey(32); // NetUtility.ToByteArray("393ed364924a71ba7258633cc4854d655ca4ec4e8ba833eceaad2511e80db2b5");
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byte[] A = NetSRP.ComputeClientEphemeral(a);
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//Console.WriteLine("A = " + NetUtility.ToHexString(A));
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byte[] b = NetSRP.CreateRandomKey(32); // NetUtility.ToByteArray("cc4d87a90db91067d52e2778b802ca6f7d362490c4be294b21b4a57c71cf55a9");
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byte[] B = NetSRP.ComputeServerEphemeral(b, v);
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//Console.WriteLine("B = " + NetUtility.ToHexString(B));
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byte[] u = NetSRP.ComputeU(A, B);
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//Console.WriteLine("u = " + NetUtility.ToHexString(u));
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byte[] Ss = NetSRP.ComputeServerSessionValue(A, v, u, b);
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//Console.WriteLine("Ss = " + NetUtility.ToHexString(Ss));
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byte[] Sc = NetSRP.ComputeClientSessionValue(B, x, u, a);
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//Console.WriteLine("Sc = " + NetUtility.ToHexString(Sc));
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if (Ss.Length != Sc.Length)
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throw new NetException("SRP non matching lengths!");
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for (int j = 0; j < Ss.Length; j++)
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{
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if (Ss[j] != Sc[j])
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throw new NetException("SRP non matching session values!");
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}
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var test = NetSRP.CreateEncryption(Ss);
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Console.WriteLine("Message encryption OK");
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}
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}
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}
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