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Code Issues Releases Activity

Missing project added; various code cleanups

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lidgren
2010-05-14 17:12:26 +00:00
parent bf208b507a
commit 9577d4b4a6
31 changed files with 381 additions and 139 deletions
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53
Lidgren.Network/NetEncryption.cs
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@@ -1,28 +1,47 @@
using System;
using System.Collections.Generic;
/* Copyright (c) 2010 Michael Lidgren
Permission is hereby granted, free of charge, to any person obtaining a copy of this software
and associated documentation files (the "Software"), to deal in the Software without
restriction, including without limitation the rights to use, copy, modify, merge, publish,
distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom
the Software is furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all copies or
substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
using System;
using System.Security.Cryptography;
using System.Text;
namespace Lidgren.Network
{
public sealed class NetXTEA
public sealed class NetXtea
{
private const int m_blockSize = 8;
private const int m_keySize = 16;
private const int m_delta = unchecked((int)0x9E3779B9);
private const int m_dSum = unchecked((int)0xC6EF3720); // sum on decrypt
private byte[] m_keyBytes;
private int[] m_key;
private int m_rounds;
private readonly byte[] m_keyBytes;
private readonly int[] m_key;
private readonly int m_rounds;
public byte[] Key { get { return m_keyBytes; } }
/// <summary>
/// 16 byte key
/// </summary>
public NetXTEA(byte[] key, int rounds)
public NetXtea(byte[] key, int rounds)
{
if (key.Length < 16)
throw new NetException("Key too short!");
m_keyBytes = key;
m_key = new int[4];
m_key[0] = BitConverter.ToInt32(key, 0);
@@ -32,6 +51,14 @@ namespace Lidgren.Network
m_rounds = rounds;
}
/// <summary>
/// 16 byte key
/// </summary>
public NetXtea(byte[] key)
: this(key, 64)
{
}
public void EncryptBlock(
byte[] inBytes,
int inOff,
@@ -56,7 +83,7 @@ namespace Lidgren.Network
return;
}
public void DecryptBlock(
byte[] inBytes,
int inOff,
@@ -104,7 +131,7 @@ namespace Lidgren.Network
}
}
public static class NetSHA
public static class NetSha
{
// TODO: switch to SHA256
private static SHA1 m_sha;
@@ -131,7 +158,7 @@ namespace Lidgren.Network
string one = NetUtility.ToHexString(N.GetBytes());
string two = NetUtility.ToHexString(g.GetBytes());
byte[] cc = NetUtility.ToByteArray(one + two.PadLeft(one.Length, '0'));
return BigInteger.Modulus(new BigInteger(NetSHA.Hash(cc)), N);
return BigInteger.Modulus(new BigInteger(NetSha.Hash(cc)), N);
}
/// <summary>
@@ -140,13 +167,13 @@ namespace Lidgren.Network
public static byte[] ComputePasswordVerifier(string username, string password, byte[] salt)
{
byte[] tmp = Encoding.ASCII.GetBytes(username + ":" + password);
byte[] innerHash = NetSHA.Hash(tmp);
byte[] innerHash = NetSha.Hash(tmp);
byte[] total = new byte[innerHash.Length + salt.Length];
Buffer.BlockCopy(salt, 0, total, 0, salt.Length);
Buffer.BlockCopy(innerHash, 0, total, salt.Length, innerHash.Length);
byte[] x = NetSHA.Hash(total);
byte[] x = NetSha.Hash(total);
// Verifier (v) = g^x (mod N)
BigInteger xx = new BigInteger(x);
@@ -194,7 +221,7 @@ namespace Lidgren.Network
string two = NetUtility.ToHexString(B);
string compound = one + two.PadLeft(one.Length, '0');
byte[] cc = NetUtility.ToByteArray(compound);
return NetSHA.Hash(cc);
return NetSha.Hash(cc);
}
/*