fetion Decrypt password

private void button1_Click(object sender, EventArgs e){ XmlDocument doc = new XmlDocument(); doc.Load(Environment.GetFolderPath(Environment.SpecialFolder.ApplicationData) + @"/Fetion/Configuration.dat"); doc.InnerXml = XMLDecodeHelper.DecodeXML(doc); XmlNode node = doc.SelectSingleNode("/ImpsConfiguration/AccountsData/Accounts"); XmlNode node2 = doc.SelectSingleNode("/ImpsConfiguration/AccountsData/Mappings"); this.listView1.Items.Clear(); foreach (XmlNode node3 in node.ChildNodes) { ListViewItem item = new ListViewItem(); string str = node3.Attributes["id"].Value; item.Text = str; this.listView1.Items.Add(item); foreach (XmlNode node4 in node2.ChildNodes) { if (node4.Attributes["mobile-no"].Value == str) { item.SubItems.Add(node4.Attributes["sid"].Value); break; } } if (node3.Attributes["password"] != null) { item.SubItems.Add(SecurityHelper.DecryptPassword(node3.Attributes["password"].Value)); continue; } item.SubItems.Add("(password not saved)"); }}

 

public static class SecurityHelper{ // Fields private static string _secToken = WindowsIdentity.GetCurrent().User.Value; public static readonly byte[] RgbIV = new byte[] { 0x1f, 0x4e, 0x81, 12, 0xa8, 0x20, 0xfe, 0x42 }; // Methods public static string DecryptPassword(string text) { if (text.Length <= 0) { return string.Empty; } return InnerDecrypt(Convert.FromBase64String(text), _secToken); } public static string EncryptPass(string sid, string domain, string oldPass, string newPass) { string s = sid + ":" + domain + ":" + oldPass; byte[] bytes = Encoding.UTF8.GetBytes(s); byte[] buffer2 = new MD5CryptoServiceProvider().ComputeHash(bytes); string str2 = StringHelper.Hex2Str(buffer2) + ":" + newPass; TripleDESCryptoServiceProvider provider = new TripleDESCryptoServiceProvider(); provider.Key = buffer2; MemoryStream stream = new MemoryStream(); using (CryptoStream stream2 = new CryptoStream(stream, new TripleDESCryptoServiceProvider().CreateEncryptor(buffer2, RgbIV), CryptoStreamMode.Write)) { byte[] buffer = Encoding.UTF8.GetBytes(str2); stream2.Write(buffer, 0, buffer.Length); stream2.FlushFinalBlock(); stream2.Close(); } byte[] buffer4 = stream.ToArray(); stream.Close(); return StringHelper.Hex2Str(buffer4); } public static string EncryptPassword(string plain) { if (plain.Length <= 0) { return string.Empty; } return Convert.ToBase64String(InnerEncrypt(plain, _secToken)); } private static string InnerDecrypt(byte[] buffer, string keyToken) { byte[] bytes = Encoding.UTF8.GetBytes(keyToken); byte[] rgbKey = new MD5CryptoServiceProvider().ComputeHash(bytes); MemoryStream stream = new MemoryStream(buffer, false); using (CryptoStream stream2 = new CryptoStream(stream, new TripleDESCryptoServiceProvider().CreateDecryptor(rgbKey, RgbIV), CryptoStreamMode.Read)) { StreamReader reader = new StreamReader(stream2); return reader.ReadToEnd(); } } private static byte[] InnerEncrypt(string text, string keyToken) { byte[] bytes = Encoding.UTF8.GetBytes(keyToken); byte[] rgbKey = new MD5CryptoServiceProvider().ComputeHash(bytes); MemoryStream stream = new MemoryStream(); using (CryptoStream stream2 = new CryptoStream(stream, new TripleDESCryptoServiceProvider().CreateEncryptor(rgbKey, RgbIV), CryptoStreamMode.Write)) { byte[] buffer = Encoding.UTF8.GetBytes(text); stream2.Write(buffer, 0, buffer.Length); stream2.FlushFinalBlock(); stream2.Close(); } return stream.ToArray(); }}

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