public static string DecodePassword(string encodedPassword, Process process)
{
byte[] encodedBytes;
using (TextAsStream _stream = new TextAsStream(encodedPassword))
using (TextCodedStream stream = new TextCodedStream(_stream, false, false))
{
List<byte> _encodedBytes = new List<byte>();
int bufferSize = 1;
byte[] buffer = new byte[bufferSize];
while (true)
{
int countRead = stream.Read(buffer, 0, bufferSize);
if (countRead != bufferSize)
{
break;
}
_encodedBytes.Add(buffer[0]);
}
encodedBytes = _encodedBytes.ToArray();
}
byte[] passwordBytes = MangleBytes(encodedBytes, process);
string password = ASCIIEncoding.ASCII.GetString(passwordBytes);
return password;
}
public static string EncodePassword(string password, Process process)
{
byte[] passwordBytes = ASCIIEncoding.ASCII.GetBytes(password);
byte[] encodedBytes = MangleBytes(passwordBytes, process);
string encodedPassword;
using (MemoryStream _stream = new MemoryStream())
{
using (TextCodedStream stream = new TextCodedStream(_stream, true, true))
{
stream.Write(encodedBytes, 0, encodedBytes.Length);
stream.Flush();
}
_stream.Position = 0;
encodedPassword = StreamFunctions.ToString(_stream);
}
return encodedPassword;
}
internal static string GeneratePasswordFileName(string prompt, Process process)
{
int encodeLength = 8;
byte[] encodedBytes = new byte[encodeLength];
byte[] promptBytes = ASCIIEncoding.ASCII.GetBytes(prompt);
byte[] idBytes = BitConverter.GetBytes((short)process.Id);
for (int byteIndex = 0; byteIndex < promptBytes.Length; byteIndex++)
{
byte value = (byte)(promptBytes[byteIndex] ^ idBytes[byteIndex % idBytes.Length] ^ encodedBytes[byteIndex % encodeLength]);
encodedBytes[byteIndex % encodeLength] = value;
}
string encodedFileName;
using (MemoryStream _stream = new MemoryStream())
{
using (TextCodedStream stream = new TextCodedStream(_stream, true, true))
{
stream.Write(encodedBytes, 0, encodeLength);
stream.Flush();
}
_stream.Position = 0;
encodedFileName = StreamFunctions.ToString(_stream);
}
return encodedFileName;
}
