ps12psv/Conv2PSV/Program.cs

178 lines
5.9 KiB
C#

using System;
using System.IO;
using System.Linq;
using System.Security.Cryptography;
using System.Windows.Forms;
namespace Conv2PSV
{
class Program
{
static string GetString(Stream fs)
{
String str = "";
byte by = 0xFF;
while (true)
{
by = (byte)fs.ReadByte();
if (by == 0x00)
break;
str += (char)by;
}
return str;
}
static string ReadName(Stream fs)
{
fs.Seek(0xA, SeekOrigin.Begin);
String Name = GetString(fs);
return Name;
}
static void WriteMagic(Stream fs)
{
fs.WriteByte(0x00);
WriteString(fs, "VSP");
}
static void WriteString(Stream fs, String str)
{
char[] CharArray = str.ToArray();
foreach(char Chr in CharArray)
{
fs.WriteByte((byte)Chr);
}
}
static String GetTitle(String FileName)
{
if (Path.GetExtension(FileName) == ".mcs")
{
FileStream fs = File.OpenRead(FileName);
return ReadName(fs);
fs.Close();
}
else
{
throw new FileNotFoundException();
}
}
static byte[] SignatureGen(Stream fs)
{
byte[] HMAC_KEY = { 0x02, 0x62, 0x8C, 0x13, 0x94, 0x71, 0xF5, 0x0B, 0xC8, 0x94, 0x4E, 0x6B, 0xF0, 0xDC, 0xBC, 0x50, 0x30, 0x3F, 0x1F, 0x5B }; // Key for this specific seed,
fs.Seek(0x00, SeekOrigin.Begin);
Console.WriteLine("Generating HMAC signature...");
HMACSHA1 hmac = new HMACSHA1(HMAC_KEY);
byte[] Signature = hmac.ComputeHash(fs);
Console.WriteLine(BitConverter.ToString(Signature).Replace("-"," "));
return Signature;
}
static String GetPsvName(String SaveName)
{
String PsvName = "";
char[] SaveArray = SaveName.ToArray();
bool DashFound = false;
foreach(char SaveChar in SaveArray)
{
if(!DashFound)
{
if (SaveChar == '-')
{
DashFound = true;
}
PsvName += SaveChar;
}
else
{
if (Char.IsDigit(SaveChar))
{
PsvName += SaveChar;
}
else
{
PsvName += String.Format("{0:X}", Convert.ToInt32(SaveChar));
}
}
}
PsvName += ".PSV";
return PsvName;
}
[STAThread]
static void Main(string[] args)
{
if(args.Length == 0)
{
Console.WriteLine("Select MCS");
OpenFileDialog ofd = new OpenFileDialog();
ofd.InitialDirectory = Directory.GetCurrentDirectory();
ofd.Filter = "Memcard REX Single Save (*.mcs)|*.mcs";
DialogResult res = ofd.ShowDialog();
if (res == DialogResult.OK)
{
args = new String[] { ofd.FileName };
}
}
if (args.Length != 0)
{
String FilePath = args[0];
String SaveTitle = GetTitle(FilePath);
Console.Write("PsvName = ");
String PsvName = GetPsvName(SaveTitle);
Console.WriteLine(PsvName);
FileStream PSV = File.Open(PsvName, FileMode.OpenOrCreate,FileAccess.ReadWrite);
PSV.SetLength(0);
BinaryWriter BW = new BinaryWriter(PSV);
WriteMagic(PSV);
BW.Write((UInt32)0);
//Am lazy and dont want to implement sonys broken AES-CBC algorythm
//Just do a seed i know the hmac key for
//ps3 wont care.
Byte[] StaticSeeed = { 0x42, 0x6C, 0x65, 0x73, 0x73, 0x65, 0x64, 0x20, 0x42, 0x65, 0x20, 0x7E, 0x20, 0x57, 0x69, 0x63, 0x63, 0x61, 0x6E, 0x73 };
//"Blessed Be ~ Wiccans"(0x14) - Allways nice to add personality to your code where-ever possible.
PSV.Write(StaticSeeed, 0x00, 0x14);
PSV.Write(new Byte[0x14], 0x00, 0x14);
Console.WriteLine("Writing Flags... ");
Byte[] Flags = { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x14, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0x20, 0x00, 0x00, 0x84, 0x00, 0x00, 0x00, 0x00, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x20, 0x00, 0x00, 0x03, 0x90, 0x00, 0x00};
PSV.Write(Flags, 0x00, 0x34);
int Padding = (0x20 - SaveTitle.Length);
Console.WriteLine("Writing " + SaveTitle + " +" + Padding.ToString());
WriteString(PSV, SaveTitle);
BW.Write(new Byte[Padding], 0x00, Padding);
Console.WriteLine("Writing SC Image");
FileStream MCS = File.OpenRead(FilePath);
long SCLen = MCS.Length - 0x80;
MCS.Seek(0x80, SeekOrigin.Begin);
byte[] SCImage = new Byte[SCLen];
MCS.Read(SCImage, 0x00, (int)SCLen);
PSV.Write(SCImage, 0x00, (int)SCLen);
byte[] Signature = SignatureGen(PSV);
Console.WriteLine("Writing Signature to file...");
PSV.Seek(0x1C, SeekOrigin.Begin);
PSV.Write(Signature, 0x00, 0x14);
Console.WriteLine("Done!\n\nBlessed Be ~");
PSV.Close();
MCS.Close();
}
}
}
}