private byte[] decryptContent(byte[] content, int contentIndex, Ticket tik, TMD tmd)
{
Array.Resize(ref content, Shared.AddPadding(content.Length, 16));
byte[] titleKey = tik.TitleKey;
byte[] iv = new byte[16];
byte[] tmp = BitConverter.GetBytes(tmd.Contents[contentIndex].Index);
iv[0] = tmp[1];
iv[1] = tmp[0];
RijndaelManaged rm = new RijndaelManaged();
rm.Mode = CipherMode.CBC;
rm.Padding = PaddingMode.None;
rm.KeySize = 128;
rm.BlockSize = 128;
rm.Key = titleKey;
rm.IV = iv;
ICryptoTransform decryptor = rm.CreateDecryptor();
MemoryStream ms = new MemoryStream(content);
CryptoStream cs = new CryptoStream(ms, decryptor, CryptoStreamMode.Read);
byte[] decCont = new byte[content.Length];
cs.Read(decCont, 0, decCont.Length);
cs.Dispose();
ms.Dispose();
return(decCont);
}
private byte[] DecryptContent(byte[] content, int contentIndex, Ticket tik, TMD tmd)
{
Array.Resize(ref content, Shared.AddPadding(content.Length, 16));
var titleKey = tik.TitleKey;
var iv = new byte[16];
var tmp = BitConverter.GetBytes(tmd.Contents[contentIndex].Index);
iv[0] = tmp[1];
iv[1] = tmp[0];
var rm = new RijndaelManaged()
{
Mode = CipherMode.CBC,
Padding = PaddingMode.None,
KeySize = 128,
BlockSize = 128,
Key = titleKey,
IV = iv
};
var decryptor = rm.CreateDecryptor();
var ms = new MemoryStream(content);
var cs = new CryptoStream(ms, decryptor, CryptoStreamMode.Read);
var decCont = new byte[content.Length];
cs.Read(decCont, 0, decCont.Length);
cs.Dispose();
ms.Dispose();
return(decCont);
}
private void createFromDir(string path)
{
fireDebug("Creating U8 File from: {0}", path);
if (path[path.Length - 1] != Path.DirectorySeparatorChar)
{
path += Path.DirectorySeparatorChar;
}
fireDebug(" Collecting Content...");
string[] dirEntries = getDirContent(path, true);
int offsetToName = 1;
int offsetToData = 0;
fireDebug(" Creating U8 Header...");
u8Header = new U8_Header();
rootNode = new U8_Node();
u8Nodes = new List <U8_Node>();
stringTable = new List <string>();
data = new List <byte[]>();
//Create Rootnode
fireDebug(" Creating Rootnode...");
rootNode.Type = U8_NodeType.Directory;
rootNode.OffsetToName = 0;
rootNode.OffsetToData = 0;
rootNode.SizeOfData = (uint)dirEntries.Length + 1;
//Create Nodes
for (int i = 0; i < dirEntries.Length; i++)
{
fireDebug(" Creating Node #{0} of {1}", i + 1, dirEntries.Length);
fireProgress((i + 1) * 100 / dirEntries.Length);
U8_Node tempNode = new U8_Node();
byte[] tempData = new byte[0];
string tempDirEntry = dirEntries[i].Remove(0, path.Length - 1);
if (Directory.Exists(dirEntries[i])) //It's a dir
{
fireDebug(" -> Directory");
tempNode.Type = U8_NodeType.Directory;
tempNode.OffsetToData = (uint)Shared.CountCharsInString(tempDirEntry, Path.DirectorySeparatorChar); //Recursion
int size = u8Nodes.Count + 2;
for (int j = 0; j < dirEntries.Length; j++)
{
if (dirEntries[j].Contains(dirEntries[i] + System.IO.Path.DirectorySeparatorChar.ToString()))
{
size++;
}
}
tempNode.SizeOfData = (uint)size;
}
else //It's a file
{
fireDebug(" -> File");
fireDebug(" -> Reading File Data...");
tempData = File.ReadAllBytes(dirEntries[i]);
tempNode.Type = U8_NodeType.File;
tempNode.OffsetToData = (uint)offsetToData;
tempNode.SizeOfData = (uint)tempData.Length;
offsetToData += Shared.AddPadding(offsetToData + tempData.Length, dataPadding);
}
tempNode.OffsetToName = (ushort)offsetToName;
offsetToName += (Path.GetFileName(dirEntries[i])).Length + 1;
fireDebug(" -> Reading Name...");
string tempName = Path.GetFileName(dirEntries[i]);
if (tempName.ToLower() == "icon.bin")
{
iconSize = getRealSize(tempData);
}
else if (tempName.ToLower() == "banner.bin")
{
bannerSize = getRealSize(tempData);
}
else if (tempName.ToLower() == "sound.bin")
{
soundSize = getRealSize(tempData);
}
u8Nodes.Add(tempNode);
stringTable.Add(tempName);
data.Add(tempData);
}
//Update U8 Header
fireDebug(" Updating U8 Header...");
u8Header.HeaderSize = (uint)(((u8Nodes.Count + 1) * 12) + offsetToName);
u8Header.OffsetToData = (uint)Shared.AddPadding((int)u8Header.OffsetToRootNode + (int)u8Header.HeaderSize, dataPadding);
//Update dataOffsets
fireDebug(" Calculating Data Offsets...");
for (int i = 0; i < u8Nodes.Count; i++)
{
fireDebug(" -> Node #{0} of {1}...", i + 1, u8Nodes.Count);
int tempOffset = (int)u8Nodes[i].OffsetToData;
u8Nodes[i].OffsetToData = (uint)(u8Header.OffsetToData + tempOffset);
}
fireDebug("Creating U8 File Finished...");
}
private void writeToStream(Stream writeStream)
{
fireDebug("Writing U8 File...");
//Update Rootnode
fireDebug(" Updating Rootnode...");
rootNode.SizeOfData = (uint)u8Nodes.Count + 1;
MemoryStream u8Stream = new MemoryStream();
//Write Stringtable
u8Stream.Seek(u8Header.OffsetToRootNode + ((u8Nodes.Count + 1) * 12), SeekOrigin.Begin);
fireDebug(" Writing String Table... (Offset: 0x{0})", u8Stream.Position.ToString("x8").ToUpper());
u8Stream.WriteByte(0x00);
int stringTablePosition = (int)u8Stream.Position - 1;
for (int i = 0; i < u8Nodes.Count; i++)
{
fireDebug(" -> Entry #{1} of {2}: \"{3}\"... (Offset: 0x{0})", u8Stream.Position.ToString("x8").ToUpper(), i + 1, u8Nodes.Count, stringTable[i]);
u8Nodes[i].OffsetToName = (ushort)(u8Stream.Position - stringTablePosition);
byte[] stringBytes = System.Text.ASCIIEncoding.ASCII.GetBytes(stringTable[i]);
u8Stream.Write(stringBytes, 0, stringBytes.Length);
u8Stream.WriteByte(0x00);
}
u8Header.HeaderSize = (uint)(u8Stream.Position - u8Header.OffsetToRootNode);
u8Header.OffsetToData = 0;
//Write Data
for (int i = 0; i < u8Nodes.Count; i++)
{
fireProgress((i + 1) * 100 / u8Nodes.Count);
if (u8Nodes[i].Type == U8_NodeType.File)
{
u8Stream.Seek(Shared.AddPadding((int)u8Stream.Position, dataPadding), SeekOrigin.Begin);
fireDebug(" Writing Data #{1} of {2}... (Offset: 0x{0})", u8Stream.Position.ToString("x8").ToUpper(), i + 1, u8Nodes.Count);
if (u8Header.OffsetToData == 0)
{
u8Header.OffsetToData = (uint)u8Stream.Position;
}
u8Nodes[i].OffsetToData = (uint)u8Stream.Position;
u8Nodes[i].SizeOfData = (uint)data[i].Length;
u8Stream.Write(data[i], 0, data[i].Length);
}
else
{
fireDebug(" Node #{0} of {1} is a Directory...", i + 1, u8Nodes.Count);
}
}
//Pad End to 16 bytes
while (u8Stream.Position % 16 != 0)
{
u8Stream.WriteByte(0x00);
}
//Write Header + Nodes
u8Stream.Seek(0, SeekOrigin.Begin);
fireDebug(" Writing Header... (Offset: 0x{0})", u8Stream.Position.ToString("x8").ToUpper());
u8Header.Write(u8Stream);
fireDebug(" Writing Rootnode... (Offset: 0x{0})", u8Stream.Position.ToString("x8").ToUpper());
rootNode.Write(u8Stream);
for (int i = 0; i < u8Nodes.Count; i++)
{
fireDebug(" Writing Node Entry #{1} of {2}... (Offset: 0x{0})", u8Stream.Position.ToString("x8").ToUpper(), i + 1, u8Nodes.Count);
u8Nodes[i].Write(u8Stream);
}
byte[] u8Array = u8Stream.ToArray();
u8Stream.Dispose();
if (lz77)
{
fireDebug(" Lz77 Compressing U8 File...");
Lz77 l = new Lz77();
u8Array = l.Compress(u8Array);
}
//Write File Header
if (headerType == Headers.HeaderType.IMD5)
{
fireDebug(" Adding IMD5 Header...");
writeStream.Seek(0, SeekOrigin.Begin);
Headers.IMD5 h = Headers.IMD5.Create(u8Array);
h.Write(writeStream);
}
else if (headerType == Headers.HeaderType.IMET || headerType == Headers.HeaderType.ShortIMET)
{
fireDebug(" Adding IMET Header...");
((Headers.IMET)header).IconSize = (uint)iconSize;
((Headers.IMET)header).BannerSize = (uint)bannerSize;
((Headers.IMET)header).SoundSize = (uint)soundSize;
writeStream.Seek(0, SeekOrigin.Begin);
((Headers.IMET)header).Write(writeStream);
}
writeStream.Write(u8Array, 0, u8Array.Length);
fireDebug("Writing U8 File Finished...");
}
