private void retrieve_Click(object sender, EventArgs e)
{
try
{
if (!File.Exists("success"))
{
MessageBox.Show("No passwords to retrieve!");
return;
}
//decrypt the privatekey.xml
Stream sm = new FileStream("privatekey.xml", FileMode.Open);
byte[] e_pvt = new byte[(int)sm.Length + 1];
sm.Read(e_pvt, 0, (int)sm.Length);
sm.Close();
char[] cp_pk = new char[e_pvt.Length + 1];
//convert byte array-e_pvt to char array and decrypt
i = 0;
while (i < e_pvt.Length)
{
cp_pk[i] = Convert.ToChar(e_pvt[i]);
i++;
}
encrypt_double ed = new encrypt_double();
char[] pt_pk = ed.decrypt(cp_pk, master_password.ToCharArray());
//convert pt_pk to byte array and write it
byte[] towrite = new byte[pt_pk.Length + 1];
i = 0;
while (i < pt_pk.Length)
{
towrite[i] = Convert.ToByte(pt_pk[i]);
i++;
}
Stream sm1 = new FileStream("privatekey.xml", FileMode.Create);
sm1.Write(towrite, 0, towrite.Length);
sm1.Close();
label5.Visible = true;
label4.Visible = false;
//code to deserialize the cipher class1
Stream stream = File.Open("string", FileMode.Open);
BinaryFormatter bformatter = new BinaryFormatter();
ob = (cipher)bformatter.Deserialize(stream);
stream.Close();
//MessageBox.Show(cr.DecryptData(ob.getstring()));
string plain = cr.DecryptData(ob.getstring());
string[] del = { "%DELIMITER&" };
string[] user = plain.Split(del, StringSplitOptions.RemoveEmptyEntries);
id.Text = user[0];
pwd.Text = user[1];
//again encrypt privatekey.xml
Stream sma = new FileStream("privatekey.xml", FileMode.Open);
byte[] pvt = new byte[(int)sma.Length + 1];
sma.Read(pvt, 0, (int)sma.Length);
sma.Close();
char[] plain_pka = new char[pvt.Length + 1];
//convert byte array-pvt to char array and encrypt
i = 0;
while (i < pvt.Length)
{
plain_pka[i] = Convert.ToChar(pvt[i]);
i++;
}
encrypt_double eda = new encrypt_double();
char[] cipher_pk = ed.encrypt(plain_pka, master_password.ToCharArray());
//convert cipher_pk to byte array and write it
byte[] towritea = new byte[cipher_pk.Length + 1];
i = 0;
while (i < cipher_pk.Length)
{
towritea[i] = Convert.ToByte(cipher_pk[i]);
i++;
}
Stream sm1a = new FileStream("privatekey.xml", FileMode.Create);
sm1a.Write(towritea, 0, towritea.Length);
sm1a.Close();
}
catch (Exception eb)
{
MessageBox.Show("An error occured while retrieving the password");
}
}
