/// <summary>
/// simple xor encoding for Gstats,GPSP,GPCM
/// </summary>
/// <param name="plaintext"></param>
/// <param name ="enc0">default encryption string used in GPSP,GPCM</param>
/// <param name ="enc1">used in GStats</param>
/// <param name ="enc2">used in GStats</param>
/// <param name="type"></param>
/// <returns></returns>
public static string Encrypt(string plaintext, XorType type)
{
string enc0 = "gamespy";
string enc1 = "GameSpy3D"; // '\0','a','m','e','S','p','y','3','D','\0'
string enc2 = "Industries"; // { '\0', 'n', 'd', 'u', 's', 't', 'r', 'i', 'e', 's', '\0' }
string enc3 = "ProjectAphex"; // { '\0','r','o','j','e','c','t','A','p','h','e','x','\0'}
//string statsfile = "gstats.dat";
int length = plaintext.Length;
char[] data = plaintext.ToCharArray();
int index = 0;
string temp;
switch (type)
{
case XorType.Type0:
temp = enc0;
break;
case XorType.Type1:
temp = enc1;
break;
case XorType.Type2:
temp = enc2;
break;
case XorType.Type3:
temp = enc3;
break;
default:
temp = enc0;
break;
}
for (int i = 0; length > 0; length--)
{
if (i >= temp.Length)
{
i = 0;
}
data[index++] ^= temp[i++];
}
return(new string(data));
}
/// <summary>
/// simple xor encoding for Gstats,GPSP,GPCM
/// </summary>
/// <param name="plaintext"></param>
/// <param name ="enc0">default encryption string used in GPSP,GPCM</param>
/// <param name ="enc1">used in GStats</param>
/// <param name ="enc2">used in GStats</param>
/// <param name="type"></param>
/// <returns></returns>
public static byte[] Encode(byte[] plaintext, XorType type)
{
string seed0 = "gamespy";
string seed1 = "GameSpy3D";
string seed2 = "Industries";
string seed3 = "ProjectAphex";
int length = plaintext.Length;
int index = 0;
byte[] temp;
switch (type)
{
case XorType.Type0:
temp = UniSpyEncoding.GetBytes(seed0);
break;
case XorType.Type1:
temp = UniSpyEncoding.GetBytes(seed1);
break;
case XorType.Type2:
temp = UniSpyEncoding.GetBytes(seed2);
break;
case XorType.Type3:
temp = UniSpyEncoding.GetBytes(seed3);
break;
default:
temp = UniSpyEncoding.GetBytes(seed0);
break;
}
for (int i = 0; length > 0; length--)
{
if (i >= temp.Length)
{
i = 0;
}
plaintext[index++] ^= temp[i++];
}
return(plaintext);
}
public void SetType(XorType formType, string Key = "")
{
lbDecrypt.Visible = false;
lbEncrypt.Visible = false;
btnDelete.Visible = false;
if (formType == XorType.Encrypt)
{
lbEncrypt.Visible = true;
btnDelete.Visible = true;
}
else
{
lbDecrypt.Visible = true;
}
if (!String.IsNullOrEmpty(Key))
{
tbKey.Text = Key;
}
}
public static string Encrypt(byte[] plaintext, XorType type)
{
return(Encrypt(plaintext.ToString(), type));
}
public static string Encode(string plainText, XorType type)
{
return
(UniSpyEncoding.GetString(
Encode(UniSpyEncoding.GetBytes(plainText), type)));
}
public XOREncoding(XorType type)
{
EncryptionType = type;
}
