private void button1_Click(object sender, EventArgs e)
{
int edrpou_32 = Int32.Parse(tb_edrpou.Text);
byte[] edrpou = { (byte)edrpou_32, (byte)(edrpou_32 >> 8), (byte)(edrpou_32 >> 16), (byte)(edrpou_32 >> 24) };
RSACryptoServiceProvider RSA = new RSACryptoServiceProvider(384);
RSA.FromXmlString("<RSAKeyValue><Modulus>7RXWNpO6yVx03AZ/eeJabvA0Of35a32jsBFiM+tV2T09Hevfl5pEnssDpKI8/wbP</Modulus><Exponent>AQAB</Exponent><P>+FS4QNrkEHAJB2xaLw2lMbl6TNMj8IeR</P><Q>9Gg1ym8VljXLwLhKsVUj2tzotjFPRThf</Q><DP>SdrQbaFsAKOBW+7Sp3nUboRuJhkJcEix</DP><DQ>EOD5hgdx6DPC5IZVsjV9CmpjL+Hr5Y3l</DQ><InverseQ>D56vb9fyeVkLIK2zhkfj523cf4GsFtOc</InverseQ><D>4I3TRAQuYXQxtwhsiwwKbZMTVG4qZFYs9e4yyxzyT3S6vKwj/88MOpGgJxNlQT/h</D></RSAKeyValue>");
string s = RSA.ToXmlString(false);
byte[] result = RSA.Encrypt(edrpou, false);
tb_Serial.Text = Protection.ArrayToString(Protection.ByteArrayToUInt(result));
result = Protection.UIntArrayToByte(Protection.StringToArray(tb_Serial.Text));
byte[] test = RSA.Decrypt(result, false);
int testedrpou = (int)test[0] | ((int)test[1] << 8) | ((int)test[2] << 16) | ((int)test[3] << 24);
}