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Initial commit of the FFXIV 1.0 lobby server.

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Filip Maj 2015-08-26 13:38:58 -04:00
commit c1e214175f
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FFXIVClassic_Lobby_Server/common/Blowfish.cs Normal file
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using System;
using System.Text;
using System.IO;
using System.Runtime.InteropServices;
namespace FFXIVClassic_Lobby_Server.common
{
public class Blowfish
{
[DllImport("../../../Debug/Blowfish.dll", CallingConvention = CallingConvention.Cdecl)]
private static extern short initializeBlowfish(byte[] key, short keySize, uint[] P, uint[,] S);
[DllImport("../../../Debug/Blowfish.dll", CallingConvention = CallingConvention.Cdecl)]
private static extern void blowfish_encipher(ref int xl, ref int xr, uint[] P);
[DllImport("../../../Debug/Blowfish.dll", CallingConvention = CallingConvention.Cdecl)]
private static extern void blowfish_decipher(ref int xl, ref int xr, uint[] P);
private uint[] P = new uint[16+2];
private uint[,] S = new uint[4,256];
public Blowfish(byte[] key)
{
InitBlowfish(key);
}
private int InitBlowfish(byte[] key)
{
return initializeBlowfish(key, (short)key.Length, P, S);
}
public void Encipher(byte[] data, int offset, int length)
{
if ((length - offset) % 8 != 0)
throw new ArgumentException("Needs to be a multiple of 8");
for (int i = offset; i < offset+length; i+=8)
{
int xl = (data[i + 0]) | (data[i + 1] << 8) | (data[i + 2] << 16) | (data[i + 3] << 24);
int xr = (data[i + 4]) | (data[i + 5] << 8) | (data[i + 6] << 16) | (data[i + 7] << 24);
blowfish_encipher(ref xl, ref xr, P);
data[i + 0] = (byte)(xl >> 0);
data[i + 1] = (byte)(xl >> 8);
data[i + 2] = (byte)(xl >> 16);
data[i + 3] = (byte)(xl >> 24);
data[i + 4] = (byte)(xr >> 0);
data[i + 5] = (byte)(xr >> 8);
data[i + 6] = (byte)(xr >> 16);
data[i + 7] = (byte)(xr >> 24);
}
}
public void Decipher(byte[] data, int offset, int length)
{
if ((length - offset) % 8 != 0)
throw new ArgumentException("Needs to be a multiple of 8");
for (int i = offset; i < offset + length; i += 8)
{
int xl = (data[i + 0]) | (data[i + 1] << 8) | (data[i + 2] << 16) | (data[i + 3] << 24);
int xr = (data[i + 4]) | (data[i + 5] << 8) | (data[i + 6] << 16) | (data[i + 7] << 24);
blowfish_decipher(ref xl, ref xr, P);
data[i + 0] = (byte)(xl >> 0);
data[i + 1] = (byte)(xl >> 8);
data[i + 2] = (byte)(xl >> 16);
data[i + 3] = (byte)(xl >> 24);
data[i + 4] = (byte)(xr >> 0);
data[i + 5] = (byte)(xr >> 8);
data[i + 6] = (byte)(xr >> 16);
data[i + 7] = (byte)(xr >> 24);
}
}
}
}