/// <summary>
/// Converts a password into mail information.
/// </summary>
/// <param name="password">The password to convert.</param>
/// <returns>Mail information from the password.</returns>
public static MissionMail Convert(string password)
{
if (string.IsNullOrEmpty(password))
{
throw new ArgumentNullException(nameof(password));
}
// Sanitaze and check password
password = password.Replace(" ", "");
password = password.Replace(Environment.NewLine, "");
password = password.ToUpper();
if (password.Length != PasswordLength)
{
throw new ArgumentException("Invalid password length");
}
// Do decryption rounds
// The last byte for "scramble" is ignored. It should be the null
// terminator 0x00.
password = Permutation.Decrypt(password, true);
byte[] binary = Substitution.Decrypt(password);
Scramble.Decrypt(binary[0], binary, 1, binary.Length - 2);
// Validate checksum
byte checksum = binary[0]; // The scramble key is the checksum too.
byte newChecksum = Checksum.Calculate(binary, 1, binary.Length - 1);
if (checksum != newChecksum)
{
throw new FormatException("Invalid checksum");
}
// Convert the binary password into the structure.
// Write the array into a stream to use the BitReader.
DataStream stream = new DataStream();
stream.Write(binary, 1, binary.Length - 1);
BitReader reader = new BitReader(stream);
MissionMail info = new MissionMail();
info.Type = (MissionState)reader.ReadByte(4);
info.LocationId = reader.ReadByte(7);
info.FloorNumber = reader.ReadByte(7);
info.Random = (info.Type == MissionState.Sos) ? reader.ReadUInt32(24) : 0x00;
info.UID = reader.ReadUInt64(64);
info.ClientLanguage = (GameLanguage)reader.ReadByte(4);
info.ClientName = reader.ReadString(80, EncodingName);
info.ObjectID1 = (info.Type == MissionState.Sos) ? (ushort)0x00 : reader.ReadUInt16(10);
info.ObjectID2 = (info.Type == MissionState.Sos) ? (ushort)0x00 : reader.ReadUInt16(10);
info.RescuerUID = reader.ReadUInt64(64);
info.GameType = (GameType)reader.ReadByte(2);
return(info);
}
/// <summary>
/// Converts a missiong information into a password.
/// </summary>
/// <param name="info">Mission to convert.</param>
/// <returns>The password.</returns>
public static string Convert(MissionMail info)
{
if (info == null)
{
throw new ArgumentNullException(nameof(info));
}
// Serialize the structure into a bit stream
DataStream stream = new DataStream();
BitWriter writer = new BitWriter(stream);
writer.Write((byte)info.Type, 4);
writer.Write(info.LocationId, 7);
writer.Write(info.FloorNumber, 7);
if (info.Type == MissionState.Sos)
{
writer.Write(info.Random, 24);
}
writer.Write(info.UID, 64);
writer.Write((byte)info.ClientLanguage, 4);
writer.Write(info.ClientName, 80, EncodingName);
if (info.Type != MissionState.Sos)
{
writer.Write(info.ObjectID1, 10);
writer.Write(info.ObjectID2, 10);
}
writer.Write(info.RescuerUID, 64);
writer.Write((byte)info.GameType, 2);
// Write the stream into an array for the rounds.
// We allocate an extra space for the checksum (first byte)
// and the null terminator (last byte).
byte[] binary = new byte[stream.Length + 2];
stream.Position = 0;
stream.Read(binary, 1, binary.Length - 2);
// Create checksum
byte checksum = Checksum.Calculate(binary, 1, binary.Length - 1);
binary[0] = checksum;
// Do encryption rounds
// The key is the checksum, we don't encrypt the null terminator.
Scramble.Encrypt(checksum, binary, 1, binary.Length - 2);
string password = Substitution.Encrypt(binary, PasswordLength);
password = Permutation.Encrypt(password, true);
return(password);
}
/// <summary>
/// Main entry point.
/// </summary>
/// <param name="args">Program arguments.</param>
static void Main(string[] args)
{
Console.WriteLine(
"DungeonKey v{0} -- KeyGen for Pokemon Mystery Dungeon ~~ by pleonex",
Assembly.GetExecutingAssembly().GetName().Version);
string password;
if (args.Length == 0)
{
Console.Write("SOS-mail password: "******"SOS-mail password: "******"Error converting password.");
Console.WriteLine("Make sure the password is valid.");
Exit(1);
}
sosMail.PrintInformation();
Console.WriteLine();
if (MissionMailConverter.Convert(sosMail) == password)
{
Console.WriteLine("\x1B[32m✔\x1B[0m EXACT password generated!");
}
else
{
Console.WriteLine("\x1B[91m✖\x1B[0m FAILED to generate pasword");
}
Console.WriteLine("Generating rescue mail");
AckMail ackMail = new AckMail(sosMail)
{
GameType = GameType.Time,
ClientLanguage = GameLanguage.English,
ClientName = "pleonex",
ObjectID1 = 0,
ObjectID2 = 0x25
};
ackMail.PrintInformation();
string ackPassword = MissionMailConverter.Convert(ackMail);
Console.WriteLine("Rescue password: "******"\x1B[32m✔\x1B[0m CORRECT password generated!");
}
else
{
Console.WriteLine("\x1B[91m✖\x1B[0m FAILED to generate pasword");
}
ThankYouMail thanksMail = new ThankYouMail(ackMail)
{
GameType = GameType.Sky,
ClientLanguage = GameLanguage.English,
ClientName = "pleonex!!",
ObjectID1 = 0,
ObjectID2 = 0x2C
};
thanksMail.PrintInformation();
string thanksPassword = MissionMailConverter.Convert(thanksMail);
Console.WriteLine("Thank-YOU password: "******"\x1B[32m✔\x1B[0m CORRECT password generated!");
}
else
{
Console.WriteLine("\x1B[91m✖\x1B[0m FAILED to generate pasword");
}
Exit(0);
}