private static void GetKeyByPassword(int regime, byte[] bytes, out byte[] key)
{
SHA3 sha = new SHA3(bytes.Length);
if (regime < 10)
{
sha.useOldDuplex = true;
}
int pc = 4;
var oiv = regime >= 20 ?
Convert.FromBase64String("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")
: new UTF8Encoding().GetBytes("passwordJjVjRyjcWwo7761qPBQUb3Sx8DACNpassword");
var dk = 1024;
if (regime >= 20)
{
dk = regime >= 30 ? 16 : 24;
if (regime >= 34)
{
dk = 8;
}
}
key = sha.getDerivatoKey(bytes, oiv, dk, ref pc, regime >= 20 ? bytes.Length << 1 : bytes.Length, regime / 10);
sha.Clear(true);
sha = null;
BytesBuilder.ToNull(bytes);
}
private static void GetPasswordAndDecryptFile(FileInfo fi, out byte[] bt, DoublePasswordForm pwdForm1)
{
byte[] key;
int regime;
using (var file = new FileStream(fi.FullName, FileMode.Open, FileAccess.Read, FileShare.Read))
{
file.Position = 1;
regime = file.ReadByte();
}
GetKeyByPassword(pwdForm1, out key, regime);
/*
#warning INSECURE
* File.AppendAllText("unsecure.log", "key: " + BitConverter.ToString(key).Replace("-", "") + "\r\n");
*/
pwdForm1.clearResultText();
var sha = new SHA3(fi.Length);
if (regime < 10)
{
sha.useOldDuplex = true;
}
var cbt = File.ReadAllBytes(fi.FullName);
try
{
bt = sha.multiDecryptLZMA(cbt, key);
}
catch (Exception e)
{
MessageBox.Show("Расшифрование не удалось, возможно файл не является файлом программы rtbd. " + e.Message, "Расшифрование не удалось", MessageBoxButtons.OK, MessageBoxIcon.Exclamation);
bt = null;
return;
}
finally
{
sha.Clear(true);
BytesBuilder.ToNull(key);
BytesBuilder.ToNull(cbt);
cbt = null;
key = null;
}
}
private void FileEncrypt(byte[] key, string FileName, int regime, int hashCount, bool LZMA)
{
GC.Collect();
var bytes = File.ReadAllBytes(FileName);
var sha = new SHA3(bytes.LongLength);
var crypted = sha.multiCryptLZMA(bytes, key, null, (byte)regime, LZMA, (byte)(LZMA ? 19 : 0), hashCount);
BytesBuilder.ToNull(key);
BytesBuilder.ToNull(bytes);
sha.Clear(true);
bytes = null;
key = null;
File.WriteAllBytes(CryptFileName, crypted);
BytesBuilder.ToNull(crypted);
crypted = null;
if (this.InvokeRequired)
{
try
{
this.Invoke(new postFileEncryptFunc(this.postFileEncrypt));
}
catch
{
postFileEncrypt();
}
}
else
{
postFileEncrypt();
}
// MessageBox.Show("Файл зашифрован\r\nПроверьте возможность расшифровки\r\nУдалите нешифрованный файл, если это требуется", "Шифрование файла " + FileName, MessageBoxButtons.OK, MessageBoxIcon.Information);
}