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Added user-customizable EncryptionKey for Moero Downhill Night PKD archive

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Michael Becker 2014-06-08 17:15:29 -04:00
parent 6d369dcf33
commit 981799122d
1 changed files with 11 additions and 2 deletions
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13
CSharp/Plugins/UniversalEditor.Plugins.FileSystem/DataFormats/FileSystem/Moero/DownhillNight/PKDDataFormat.cs
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@ -18,10 +18,19 @@ namespace UniversalEditor.DataFormats.FileSystem.Moero.DownhillNight
_dfr = base.MakeReference();
_dfr.Capabilities.Add(typeof(FileSystemObjectModel), DataFormatCapabilities.All);
_dfr.Filters.Add("Moero Downhill Night PKD archive", new byte?[][] { new byte?[] { (byte)'P', (byte)'A', (byte)'C', (byte)'K' } }, new string[] { "*.pkd" } );
_dfr.ImportOptions.Add(new CustomOptionNumber("EncryptionKey", "Encryption &key:", 0xC5, 0, 255));
_dfr.ExportOptions.Add(new CustomOptionNumber("EncryptionKey", "Encryption &key:", 0xC5, 0, 255));
}
return _dfr;
}
private byte mvarEncryptionKey = 0xC5;
/// <summary>
/// The single-byte encryption key XORed with the file data.
/// </summary>
public byte EncryptionKey { get { return mvarEncryptionKey; } set { mvarEncryptionKey = value; } }
protected override void LoadInternal(ref ObjectModel objectModel)
{
FileSystemObjectModel fsom = (objectModel as FileSystemObjectModel);
@ -34,7 +43,7 @@ namespace UniversalEditor.DataFormats.FileSystem.Moero.DownhillNight
byte[] encryptedData = br.ReadToEnd();
for (int i = 0; i < encryptedData.Length; i++)
{
encryptedData[i] = (byte)(encryptedData[i] ^ 0xC5);
encryptedData[i] = (byte)(encryptedData[i] ^ mvarEncryptionKey);
}
br = new IO.Reader(new MemoryAccessor(encryptedData));
@ -103,7 +112,7 @@ namespace UniversalEditor.DataFormats.FileSystem.Moero.DownhillNight
byte[] data = ma.ToArray();
for (int i = 0; i < data.Length; i++)
{
data[i] = (byte)(data[i] ^ 0xC5);
data[i] = (byte)(data[i] ^ mvarEncryptionKey);
}
bw.WriteBytes(data);
bw.Flush();