mirror of
https://github.com/WiiDatabase/nusdownloader.git
synced 2024-11-23 18:59:16 +01:00
610 lines
23 KiB
C#
610 lines
23 KiB
C#
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/* This file is part of libWiiSharp
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* Copyright (C) 2009 Leathl
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*
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* libWiiSharp is free software: you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as published
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* by the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* libWiiSharp is distributed in the hope that it will be
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* useful, but WITHOUT ANY WARRANTY; without even the implied warranty
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* of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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using System;
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using System.IO;
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using System.Security.Cryptography;
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namespace libWiiSharp
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{
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public enum CommonKeyType : byte
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{
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Standard = 0x00,
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Korean = 0x01,
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}
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public class Ticket : IDisposable
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{
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private byte newKeyIndex = (byte)CommonKeyType.Standard;
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private byte[] decryptedTitleKey = new byte[16];
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private bool fakeSign = false;
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private bool titleKeyChanged = false;
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private byte[] newEncryptedTitleKey = new byte[0];
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private bool reDecrypt = false;
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private uint signatureExponent = 0x00010001;
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private byte[] signature = new byte[256];
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private byte[] padding = new byte[60];
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private byte[] issuer = new byte[64];
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private byte[] unknown = new byte[63];
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private byte[] encryptedTitleKey = new byte[16];
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private byte unknown2;
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private ulong ticketId;
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private uint consoleId;
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private ulong titleId;
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private ushort unknown3 = 0xFFFF;
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private ushort numOfDlc;
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private ulong unknown4;
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private byte padding2;
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private byte commonKeyIndex = (byte)CommonKeyType.Standard;
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private byte[] unknown5 = new byte[48];
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private byte[] unknown6 = new byte[32]; //0xFF
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private ushort padding3;
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private uint enableTimeLimit;
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private uint timeLimit;
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private byte[] padding4 = new byte[88];
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/// <summary>
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/// The Title Key the WADs content is encrypted with.
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/// </summary>
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public byte[] TitleKey { get { return decryptedTitleKey; } set { decryptedTitleKey = value; titleKeyChanged = true; reDecrypt = false; } }
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/// <summary>
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/// Defines which Common Key is used (Standard / Korean).
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/// </summary>
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public CommonKeyType CommonKeyIndex { get { return (CommonKeyType)newKeyIndex; } set { newKeyIndex = (byte)value; } }
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/// <summary>
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/// The Ticket ID.
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/// </summary>
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public ulong TicketID { get { return ticketId; } set { ticketId = value; } }
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/// <summary>
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/// The Console ID.
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/// </summary>
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public uint ConsoleID { get { return consoleId; } set { consoleId = value; } }
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/// <summary>
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/// The Title ID.
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/// </summary>
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public ulong TitleID { get { return titleId; } set { titleId = value; if (reDecrypt) reDecryptTitleKey(); } }
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/// <summary>
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/// Number of DLC.
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/// </summary>
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public ushort NumOfDLC { get { return numOfDlc; } set { numOfDlc = value; } }
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/// <summary>
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/// If true, the Ticket will be fakesigned while saving.
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/// </summary>
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public bool FakeSign { get { return fakeSign; } set { fakeSign = value; } }
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/// <summary>
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/// True if the Title Key was changed.
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/// </summary>
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public bool TitleKeyChanged { get { return titleKeyChanged; } }
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#region IDisposable Members
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private bool isDisposed = false;
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~Ticket()
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{
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Dispose(false);
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}
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public void Dispose()
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{
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Dispose(true);
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GC.SuppressFinalize(this);
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}
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protected virtual void Dispose(bool disposing)
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{
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if (disposing && !isDisposed)
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{
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decryptedTitleKey = null;
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newEncryptedTitleKey = null;
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signature = null;
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padding = null;
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issuer = null;
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unknown = null;
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encryptedTitleKey = null;
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unknown5 = null;
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unknown6 = null;
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padding4 = null;
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}
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isDisposed = true;
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}
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#endregion
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#region Public Functions
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/// <summary>
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/// Loads a tik file.
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/// </summary>
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/// <param name="pathToTicket"></param>
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/// <returns></returns>
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public static Ticket Load(string pathToTicket)
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{
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return Load(File.ReadAllBytes(pathToTicket));
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}
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/// <summary>
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/// Loads a tik file.
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/// </summary>
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/// <param name="ticket"></param>
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/// <returns></returns>
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public static Ticket Load(byte[] ticket)
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{
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Ticket tik = new Ticket();
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MemoryStream ms = new MemoryStream(ticket);
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try { tik.parseTicket(ms); }
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catch { ms.Dispose(); throw; }
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ms.Dispose();
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return tik;
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}
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/// <summary>
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/// Loads a tik file.
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/// </summary>
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/// <param name="ticket"></param>
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/// <returns></returns>
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public static Ticket Load(Stream ticket)
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{
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Ticket tik = new Ticket();
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tik.parseTicket(ticket);
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return tik;
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}
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/// <summary>
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/// Loads a tik file.
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/// </summary>
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/// <param name="pathToTicket"></param>
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public void LoadFile(string pathToTicket)
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{
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LoadFile(File.ReadAllBytes(pathToTicket));
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}
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/// <summary>
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/// Loads a tik file.
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/// </summary>
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/// <param name="ticket"></param>
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public void LoadFile(byte[] ticket)
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{
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MemoryStream ms = new MemoryStream(ticket);
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try { parseTicket(ms); }
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catch { ms.Dispose(); throw; }
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ms.Dispose();
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}
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/// <summary>
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/// Loads a tik file.
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/// </summary>
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/// <param name="ticket"></param>
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public void LoadFile(Stream ticket)
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{
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parseTicket(ticket);
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}
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/// <summary>
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/// Saves the Ticket.
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/// </summary>
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/// <param name="savePath"></param>
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public void Save(string savePath)
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{
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Save(savePath, false);
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}
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/// <summary>
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/// Saves the Ticket. If fakeSign is true, the Ticket will be fakesigned.
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/// </summary>
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/// <param name="savePath"></param>
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/// <param name="fakeSign"></param>
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public void Save(string savePath, bool fakeSign)
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{
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if (fakeSign) this.fakeSign = true;
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if (File.Exists(savePath)) File.Delete(savePath);
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using (FileStream fs = new FileStream(savePath, FileMode.Create))
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writeToStream(fs);
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}
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/// <summary>
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/// Returns the Ticket as a memory stream.
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/// </summary>
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/// <returns></returns>
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public MemoryStream ToMemoryStream()
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{
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return ToMemoryStream(false);
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}
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/// <summary>
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/// Returns the Ticket as a memory stream. If fakeSign is true, the Ticket will be fakesigned.
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/// </summary>
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/// <param name="fakeSign"></param>
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/// <returns></returns>
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public MemoryStream ToMemoryStream(bool fakeSign)
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{
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if (fakeSign) this.fakeSign = true;
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MemoryStream ms = new MemoryStream();
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try { writeToStream(ms); }
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catch { ms.Dispose(); throw; }
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return ms;
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}
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/// <summary>
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/// Returns the Ticket as a byte array.
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/// </summary>
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/// <returns></returns>
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public byte[] ToByteArray()
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{
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return ToByteArray(false);
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}
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/// <summary>
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/// Returns the Ticket as a byte array. If fakeSign is true, the Ticket will be fakesigned.
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/// </summary>
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/// <param name="fakeSign"></param>
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/// <returns></returns>
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public byte[] ToByteArray(bool fakeSign)
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{
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if (fakeSign) this.fakeSign = true;
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MemoryStream ms = new MemoryStream();
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try { writeToStream(ms); }
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catch { ms.Dispose(); throw; }
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byte[] res = ms.ToArray();
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ms.Dispose();
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return res;
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}
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/// <summary>
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/// This will set a new encrypted Title Key (i.e. the one that you can "read" in the Ticket).
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/// </summary>
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/// <param name="newTitleKey"></param>
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public void SetTitleKey(string newTitleKey)
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{
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SetTitleKey(newTitleKey.ToCharArray());
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}
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/// <summary>
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/// This will set a new encrypted Title Key (i.e. the one that you can "read" in the Ticket).
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/// </summary>
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/// <param name="newTitleKey"></param>
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public void SetTitleKey(char[] newTitleKey)
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{
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if (newTitleKey.Length != 16)
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throw new Exception("The title key must be 16 characters long!");
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for (int i = 0; i < 16; i++)
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encryptedTitleKey[i] = (byte)newTitleKey[i];
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decryptTitleKey();
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titleKeyChanged = true;
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reDecrypt = true;
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newEncryptedTitleKey = encryptedTitleKey;
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}
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/// <summary>
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/// This will set a new encrypted Title Key (i.e. the one that you can "read" in the Ticket).
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/// </summary>
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/// <param name="newTitleKey"></param>
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public void SetTitleKey(byte[] newTitleKey)
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{
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if (newTitleKey.Length != 16)
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throw new Exception("The title key must be 16 characters long!");
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encryptedTitleKey = newTitleKey;
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decryptTitleKey();
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titleKeyChanged = true;
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reDecrypt = true;
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newEncryptedTitleKey = newTitleKey;
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}
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/// <summary>
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/// Returns the Upper Title ID as a string.
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/// </summary>
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/// <returns></returns>
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public string GetUpperTitleID()
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{
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byte[] titleBytes = BitConverter.GetBytes(Shared.Swap((uint)titleId));
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return new string(new char[] { (char)titleBytes[0], (char)titleBytes[1], (char)titleBytes[2], (char)titleBytes[3] });
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}
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#endregion
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#region Private Functions
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private void writeToStream(Stream writeStream)
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{
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fireDebug("Writing Ticket...");
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fireDebug(" Encrypting Title Key...");
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encryptTitleKey();
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fireDebug(" -> Decrypted Title Key: {0}", Shared.ByteArrayToString(decryptedTitleKey));
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fireDebug(" -> Encrypted Title Key: {0}", Shared.ByteArrayToString(encryptedTitleKey));
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if (fakeSign)
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{ fireDebug(" Clearing Signature..."); signature = new byte[256]; } //Clear Signature if we fake Sign
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MemoryStream ms = new MemoryStream();
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ms.Seek(0, SeekOrigin.Begin);
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fireDebug(" Writing Signature Exponent... (Offset: 0x{0})", ms.Position.ToString("x8").ToUpper());
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ms.Write(BitConverter.GetBytes(Shared.Swap(signatureExponent)), 0, 4);
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fireDebug(" Writing Signature... (Offset: 0x{0})", ms.Position.ToString("x8").ToUpper());
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ms.Write(signature, 0, signature.Length);
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fireDebug(" Writing Padding... (Offset: 0x{0})", ms.Position.ToString("x8").ToUpper());
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ms.Write(padding, 0, padding.Length);
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fireDebug(" Writing Issuer... (Offset: 0x{0})", ms.Position.ToString("x8").ToUpper());
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ms.Write(issuer, 0, issuer.Length);
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fireDebug(" Writing Unknown... (Offset: 0x{0})", ms.Position.ToString("x8").ToUpper());
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ms.Write(unknown, 0, unknown.Length);
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fireDebug(" Writing Title Key... (Offset: 0x{0})", ms.Position.ToString("x8").ToUpper());
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ms.Write(encryptedTitleKey, 0, encryptedTitleKey.Length);
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fireDebug(" Writing Unknown2... (Offset: 0x{0})", ms.Position.ToString("x8").ToUpper());
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ms.WriteByte(unknown2);
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|
|
fireDebug(" Writing Ticket ID... (Offset: 0x{0})", ms.Position.ToString("x8").ToUpper());
|
|||
|
|
ms.Write(BitConverter.GetBytes(Shared.Swap(ticketId)), 0, 8);
|
|||
|
|
|
|||
|
|
fireDebug(" Writing Console ID... (Offset: 0x{0})", ms.Position.ToString("x8").ToUpper());
|
|||
|
|
ms.Write(BitConverter.GetBytes(Shared.Swap(consoleId)), 0, 4);
|
|||
|
|
|
|||
|
|
fireDebug(" Writing Title ID... (Offset: 0x{0})", ms.Position.ToString("x8").ToUpper());
|
|||
|
|
ms.Write(BitConverter.GetBytes(Shared.Swap(titleId)), 0, 8);
|
|||
|
|
|
|||
|
|
fireDebug(" Writing Unknwon3... (Offset: 0x{0})", ms.Position.ToString("x8").ToUpper());
|
|||
|
|
ms.Write(BitConverter.GetBytes(Shared.Swap(unknown3)), 0, 2);
|
|||
|
|
|
|||
|
|
fireDebug(" Writing NumOfDLC... (Offset: 0x{0})", ms.Position.ToString("x8").ToUpper());
|
|||
|
|
ms.Write(BitConverter.GetBytes(Shared.Swap(numOfDlc)), 0, 2);
|
|||
|
|
|
|||
|
|
fireDebug(" Writing Unknwon4... (Offset: 0x{0})", ms.Position.ToString("x8").ToUpper());
|
|||
|
|
ms.Write(BitConverter.GetBytes(Shared.Swap(unknown4)), 0, 8);
|
|||
|
|
|
|||
|
|
fireDebug(" Writing Padding2... (Offset: 0x{0})", ms.Position.ToString("x8").ToUpper());
|
|||
|
|
ms.WriteByte(padding2);
|
|||
|
|
|
|||
|
|
fireDebug(" Writing Common Key Index... (Offset: 0x{0})", ms.Position.ToString("x8").ToUpper());
|
|||
|
|
ms.WriteByte(commonKeyIndex);
|
|||
|
|
|
|||
|
|
fireDebug(" Writing Unknown5... (Offset: 0x{0})", ms.Position.ToString("x8").ToUpper());
|
|||
|
|
ms.Write(unknown5, 0, unknown5.Length);
|
|||
|
|
|
|||
|
|
fireDebug(" Writing Unknown6... (Offset: 0x{0})", ms.Position.ToString("x8").ToUpper());
|
|||
|
|
ms.Write(unknown6, 0, unknown6.Length);
|
|||
|
|
|
|||
|
|
fireDebug(" Writing Padding3... (Offset: 0x{0})", ms.Position.ToString("x8").ToUpper());
|
|||
|
|
ms.Write(BitConverter.GetBytes(Shared.Swap(padding3)), 0, 2);
|
|||
|
|
|
|||
|
|
fireDebug(" Writing Enable Time Limit... (Offset: 0x{0})", ms.Position.ToString("x8").ToUpper());
|
|||
|
|
ms.Write(BitConverter.GetBytes(Shared.Swap(enableTimeLimit)), 0, 4);
|
|||
|
|
|
|||
|
|
fireDebug(" Writing Time Limit... (Offset: 0x{0})", ms.Position.ToString("x8").ToUpper());
|
|||
|
|
ms.Write(BitConverter.GetBytes(Shared.Swap(timeLimit)), 0, 4);
|
|||
|
|
|
|||
|
|
fireDebug(" Writing Padding4... (Offset: 0x{0})", ms.Position.ToString("x8").ToUpper());
|
|||
|
|
ms.Write(padding4, 0, padding4.Length);
|
|||
|
|
|
|||
|
|
byte[] tik = ms.ToArray();
|
|||
|
|
ms.Dispose();
|
|||
|
|
|
|||
|
|
//fake Sign
|
|||
|
|
if (fakeSign)
|
|||
|
|
{
|
|||
|
|
fireDebug(" Fakesigning Ticket...");
|
|||
|
|
|
|||
|
|
byte[] hash = new byte[20];
|
|||
|
|
SHA1 s = SHA1.Create();
|
|||
|
|
|
|||
|
|
for (ushort i = 0; i < 0xFFFF; i++)
|
|||
|
|
{
|
|||
|
|
byte[] bytes = BitConverter.GetBytes(i);
|
|||
|
|
tik[498] = bytes[1]; tik[499] = bytes[0];
|
|||
|
|
|
|||
|
|
hash = s.ComputeHash(tik);
|
|||
|
|
if (hash[0] == 0x00)
|
|||
|
|
{ fireDebug(" -> Signed ({0})", i); break; } //Win! It's signed...
|
|||
|
|
|
|||
|
|
if (i == 0xFFFF - 1)
|
|||
|
|
{ fireDebug(" -> Signing Failed..."); throw new Exception("Fakesigning failed..."); }
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
s.Clear();
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
writeStream.Seek(0, SeekOrigin.Begin);
|
|||
|
|
writeStream.Write(tik, 0, tik.Length);
|
|||
|
|
|
|||
|
|
fireDebug("Writing Ticket Finished...");
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
private void parseTicket(Stream ticketFile)
|
|||
|
|
{
|
|||
|
|
fireDebug("Parsing Ticket...");
|
|||
|
|
|
|||
|
|
ticketFile.Seek(0, SeekOrigin.Begin);
|
|||
|
|
byte[] temp = new byte[8];
|
|||
|
|
|
|||
|
|
fireDebug(" Reading Signature Exponent... (Offset: 0x{0})", ticketFile.Position.ToString("x8").ToUpper());
|
|||
|
|
ticketFile.Read(temp, 0, 4);
|
|||
|
|
signatureExponent = Shared.Swap(BitConverter.ToUInt32(temp, 0));
|
|||
|
|
|
|||
|
|
fireDebug(" Reading Signature... (Offset: 0x{0})", ticketFile.Position.ToString("x8").ToUpper());
|
|||
|
|
ticketFile.Read(signature, 0, signature.Length);
|
|||
|
|
|
|||
|
|
fireDebug(" Reading Padding... (Offset: 0x{0})", ticketFile.Position.ToString("x8").ToUpper());
|
|||
|
|
ticketFile.Read(padding, 0, padding.Length);
|
|||
|
|
|
|||
|
|
fireDebug(" Reading Issuer... (Offset: 0x{0})", ticketFile.Position.ToString("x8").ToUpper());
|
|||
|
|
ticketFile.Read(issuer, 0, issuer.Length);
|
|||
|
|
|
|||
|
|
fireDebug(" Reading Unknown... (Offset: 0x{0})", ticketFile.Position.ToString("x8").ToUpper());
|
|||
|
|
ticketFile.Read(unknown, 0, unknown.Length);
|
|||
|
|
|
|||
|
|
fireDebug(" Reading Title Key... (Offset: 0x{0})", ticketFile.Position.ToString("x8").ToUpper());
|
|||
|
|
ticketFile.Read(encryptedTitleKey, 0, encryptedTitleKey.Length);
|
|||
|
|
|
|||
|
|
fireDebug(" Reading Unknown2... (Offset: 0x{0})", ticketFile.Position.ToString("x8").ToUpper());
|
|||
|
|
unknown2 = (byte)ticketFile.ReadByte();
|
|||
|
|
|
|||
|
|
fireDebug(" Reading Ticket ID.. (Offset: 0x{0})", ticketFile.Position.ToString("x8").ToUpper());
|
|||
|
|
ticketFile.Read(temp, 0, 8);
|
|||
|
|
ticketId = Shared.Swap(BitConverter.ToUInt64(temp, 0));
|
|||
|
|
|
|||
|
|
fireDebug(" Reading Console ID... (Offset: 0x{0})", ticketFile.Position.ToString("x8").ToUpper());
|
|||
|
|
ticketFile.Read(temp, 0, 4);
|
|||
|
|
consoleId = Shared.Swap(BitConverter.ToUInt32(temp, 0));
|
|||
|
|
|
|||
|
|
fireDebug(" Reading Title ID... (Offset: 0x{0})", ticketFile.Position.ToString("x8").ToUpper());
|
|||
|
|
ticketFile.Read(temp, 0, 8);
|
|||
|
|
titleId = Shared.Swap(BitConverter.ToUInt64(temp, 0));
|
|||
|
|
|
|||
|
|
fireDebug(" Reading Unknown3... (Offset: 0x{0})", ticketFile.Position.ToString("x8").ToUpper());
|
|||
|
|
fireDebug(" Reading NumOfDLC... (Offset: 0x{0})", ticketFile.Position.ToString("x8").ToUpper());
|
|||
|
|
ticketFile.Read(temp, 0, 4);
|
|||
|
|
unknown3 = Shared.Swap(BitConverter.ToUInt16(temp, 0));
|
|||
|
|
numOfDlc = Shared.Swap(BitConverter.ToUInt16(temp, 2));
|
|||
|
|
|
|||
|
|
fireDebug(" Reading Unknown4... (Offset: 0x{0})", ticketFile.Position.ToString("x8").ToUpper());
|
|||
|
|
ticketFile.Read(temp, 0, 8);
|
|||
|
|
unknown4 = Shared.Swap(BitConverter.ToUInt64(temp, 0));
|
|||
|
|
|
|||
|
|
fireDebug(" Reading Padding2... (Offset: 0x{0})", ticketFile.Position.ToString("x8").ToUpper());
|
|||
|
|
padding2 = (byte)ticketFile.ReadByte();
|
|||
|
|
|
|||
|
|
fireDebug(" Reading Common Key Index... (Offset: 0x{0})", ticketFile.Position.ToString("x8").ToUpper());
|
|||
|
|
commonKeyIndex = (byte)ticketFile.ReadByte();
|
|||
|
|
|
|||
|
|
newKeyIndex = commonKeyIndex;
|
|||
|
|
|
|||
|
|
fireDebug(" Reading Unknown5... (Offset: 0x{0})", ticketFile.Position.ToString("x8").ToUpper());
|
|||
|
|
ticketFile.Read(unknown5, 0, unknown5.Length);
|
|||
|
|
|
|||
|
|
fireDebug(" Reading Unknown6... (Offset: 0x{0})", ticketFile.Position.ToString("x8").ToUpper());
|
|||
|
|
ticketFile.Read(unknown6, 0, unknown6.Length);
|
|||
|
|
|
|||
|
|
fireDebug(" Reading Padding3... (Offset: 0x{0})", ticketFile.Position.ToString("x8").ToUpper());
|
|||
|
|
ticketFile.Read(temp, 0, 2);
|
|||
|
|
padding3 = Shared.Swap(BitConverter.ToUInt16(temp, 0));
|
|||
|
|
|
|||
|
|
fireDebug(" Reading Enable Time Limit... (Offset: 0x{0})", ticketFile.Position.ToString("x8").ToUpper());
|
|||
|
|
fireDebug(" Reading Time Limit... (Offset: 0x{0})", ticketFile.Position.ToString("x8").ToUpper());
|
|||
|
|
ticketFile.Read(temp, 0, 8);
|
|||
|
|
enableTimeLimit = Shared.Swap(BitConverter.ToUInt32(temp, 0));
|
|||
|
|
timeLimit = Shared.Swap(BitConverter.ToUInt32(temp, 4));
|
|||
|
|
|
|||
|
|
fireDebug(" Reading Padding4... (Offset: 0x{0})", ticketFile.Position.ToString("x8").ToUpper());
|
|||
|
|
ticketFile.Read(padding4, 0, padding4.Length);
|
|||
|
|
|
|||
|
|
fireDebug(" Decrypting Title Key...");
|
|||
|
|
decryptTitleKey();
|
|||
|
|
fireDebug(" -> Encrypted Title Key: {0}", Shared.ByteArrayToString(encryptedTitleKey));
|
|||
|
|
fireDebug(" -> Decrypted Title Key: {0}", Shared.ByteArrayToString(decryptedTitleKey));
|
|||
|
|
|
|||
|
|
fireDebug("Parsing Ticket Finished...");
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
private void decryptTitleKey()
|
|||
|
|
{
|
|||
|
|
byte[] ckey = (commonKeyIndex == 0x01) ? CommonKey.GetKoreanKey() : CommonKey.GetStandardKey();
|
|||
|
|
byte[] iv = BitConverter.GetBytes(Shared.Swap(titleId));
|
|||
|
|
Array.Resize(ref iv, 16);
|
|||
|
|
|
|||
|
|
RijndaelManaged rm = new RijndaelManaged();
|
|||
|
|
rm.Mode = CipherMode.CBC;
|
|||
|
|
rm.Padding = PaddingMode.None;
|
|||
|
|
rm.KeySize = 128;
|
|||
|
|
rm.BlockSize = 128;
|
|||
|
|
rm.Key = ckey;
|
|||
|
|
rm.IV = iv;
|
|||
|
|
|
|||
|
|
ICryptoTransform decryptor = rm.CreateDecryptor();
|
|||
|
|
|
|||
|
|
MemoryStream ms = new MemoryStream(encryptedTitleKey);
|
|||
|
|
CryptoStream cs = new CryptoStream(ms, decryptor, CryptoStreamMode.Read);
|
|||
|
|
|
|||
|
|
cs.Read(decryptedTitleKey, 0, decryptedTitleKey.Length);
|
|||
|
|
|
|||
|
|
cs.Dispose();
|
|||
|
|
ms.Dispose();
|
|||
|
|
decryptor.Dispose();
|
|||
|
|
rm.Clear();
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
private void encryptTitleKey()
|
|||
|
|
{
|
|||
|
|
commonKeyIndex = newKeyIndex;
|
|||
|
|
byte[] ckey = (commonKeyIndex == 0x01) ? CommonKey.GetKoreanKey() : CommonKey.GetStandardKey();
|
|||
|
|
byte[] iv = BitConverter.GetBytes(Shared.Swap(titleId));
|
|||
|
|
Array.Resize(ref iv, 16);
|
|||
|
|
|
|||
|
|
RijndaelManaged rm = new RijndaelManaged();
|
|||
|
|
rm.Mode = CipherMode.CBC;
|
|||
|
|
rm.Padding = PaddingMode.None;
|
|||
|
|
rm.KeySize = 128;
|
|||
|
|
rm.BlockSize = 128;
|
|||
|
|
rm.Key = ckey;
|
|||
|
|
rm.IV = iv;
|
|||
|
|
|
|||
|
|
ICryptoTransform encryptor = rm.CreateEncryptor();
|
|||
|
|
|
|||
|
|
MemoryStream ms = new MemoryStream(decryptedTitleKey);
|
|||
|
|
CryptoStream cs = new CryptoStream(ms, encryptor, CryptoStreamMode.Read);
|
|||
|
|
|
|||
|
|
cs.Read(encryptedTitleKey, 0, encryptedTitleKey.Length);
|
|||
|
|
|
|||
|
|
cs.Dispose();
|
|||
|
|
ms.Dispose();
|
|||
|
|
encryptor.Dispose();
|
|||
|
|
rm.Clear();
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
private void reDecryptTitleKey()
|
|||
|
|
{
|
|||
|
|
encryptedTitleKey = newEncryptedTitleKey;
|
|||
|
|
decryptTitleKey();
|
|||
|
|
}
|
|||
|
|
#endregion
|
|||
|
|
|
|||
|
|
#region Events
|
|||
|
|
/// <summary>
|
|||
|
|
/// Fires debugging messages. You may write them into a log file or log textbox.
|
|||
|
|
/// </summary>
|
|||
|
|
public event EventHandler<MessageEventArgs> Debug;
|
|||
|
|
|
|||
|
|
private void fireDebug(string debugMessage, params object[] args)
|
|||
|
|
{
|
|||
|
|
EventHandler<MessageEventArgs> debug = Debug;
|
|||
|
|
if (debug != null)
|
|||
|
|
debug(new object(), new MessageEventArgs(string.Format(debugMessage, args)));
|
|||
|
|
}
|
|||
|
|
#endregion
|
|||
|
|
}
|
|||
|
|
}
|