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");
}
}
private void store_Click(object sender, EventArgs e)
{
try
{
string s1, s2;
label4.Visible = true;
s1 = id.Text;
s2 = pwd.Text;
if (s1 == "" || s2 == "")
{
MessageBox.Show("Incorrect format. Empty values are not allowed!");
return;
}
string final = s1 + "%DELIMITER&" + s2;
//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();
//code to encrypt and serialize the objects
cr = new Crypography();
string cipher = cr.crypt(final);
if (cipher.CompareTo("Illegal Values") != 0)
{
//code to deserialize the cipher class1
Stream stream = File.Open("string", FileMode.Open);
BinaryFormatter bformatter = new BinaryFormatter();
ob = (cipher)bformatter.Deserialize(stream);
stream.Close();
ob.assign(cipher);
//serialize the cipher object
Stream streamc = new FileStream("string", FileMode.Create);
BinaryFormatter bformatterc = new BinaryFormatter();
bformatterc.Serialize(streamc, ob);
streamc.Close();
id.Text = "";
pwd.Text = "";
}
else
{
MessageBox.Show("Illegal Values. Click 'Retrieve Passwords' to retrieve your old values.");
}
//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();
Stream sss = new FileStream("success", FileMode.Create);
sss.Close();
}
catch (Exception ed)
{
MessageBox.Show("An error occured while storing the passwords");
}
}
private void ok_Click(object sender, EventArgs e)
{
if (master.Text == "")
{
MessageBox.Show("Enter a valid password");
return;
}
if (cnt.count == 0)
{
char[] plain_pk;
cnt.count++;
Stream streamc1 = new FileStream("count", FileMode.Create);
BinaryFormatter bformatterc1 = new BinaryFormatter();
bformatterc1.Serialize(streamc1, cnt);
streamc1.Close();
string ms = master.Text;
md5 ob = new md5();
Byte[] hash = ob.md(ms);
Stream fi = new FileStream("geeky", FileMode.Create);
fi.Write(hash, 0, hash.Length);
fi.Close();
cr.AssignNewKey();
//MessageBox.Show("wait!");
Stream sm = new FileStream("privatekey.xml", FileMode.Open);
byte[] pvt = new byte[(int)sm.Length + 1];
sm.Read(pvt, 0, (int)sm.Length);
sm.Close();
plain_pk = new char[pvt.Length + 1];
//convert byte array-pvt to char array and encrypt
i = 0;
while (i < pvt.Length)
{
plain_pk[i] = Convert.ToChar(pvt[i]);
i++;
}
encrypt_double ed = new encrypt_double();
char[] cipher_pk = ed.encrypt(plain_pk, ms.ToCharArray());
//convert cipher_pk to byte array and write it
byte[] towrite = new byte[cipher_pk.Length + 1];
i = 0;
while (i < cipher_pk.Length)
{
towrite[i] = Convert.ToByte(cipher_pk[i]);
i++;
}
Stream sm1 = new FileStream("privatekey.xml", FileMode.Create);
sm1.Write(towrite, 0, towrite.Length);
sm1.Close();
}
else
{
string ms = master.Text;
md5 ob = new md5();
Byte[] newhash = ob.md(ms);
Byte[] oldhash = new Byte[newhash.Length + 1];
Stream fi = new FileStream("geeky", FileMode.Open);
fi.Read(oldhash, 0, newhash.Length);
fi.Close();
int i = 0;
t = 0;
while (i < oldhash.Length && i < newhash.Length)
{
if (oldhash[i] != newhash[i])
{
t = 1;
MessageBox.Show("Wrong Password!");
break;
}
i++;
}
if (t == 0)
{
MessageBox.Show("Welcome");
}
}
if (t == 0)
{
ok.Visible = false;
master.Visible = false;
enter.Visible = false;
textBox1.Enabled = true;
insert.Enabled = true;
serialize.Enabled = true;
password.Enabled = true;
id.Visible = true;
pwd.Visible = true;
label2.Visible = true;
label3.Visible = true;
label4.Visible = true;
store.Enabled = true;
retrieve.Enabled = true;
master_password = master.Text;
}
}
