public async void GenerateKeyFromInput()
{
CalculationError = string.Empty;
IsCalculatingKey = true;
var keyType = KeyType.Bytejail;
if (BytejailFormat)
{
keyType = KeyType.Bytejail;
}
else if (CurveLockFormat)
{
keyType = KeyType.Curvelock;
}
else if (MiniLockFormat)
{
keyType = KeyType.Minilock;
}
if ((!string.IsNullOrEmpty(UserName)) && (!string.IsNullOrEmpty(UserPassword)))
{
if ((keyType == KeyType.Curvelock) || (keyType == KeyType.Minilock))
{
if (!StringHelper.IsValidEmail(UserName))
{
CalculationError = "miniLock and CurveLock requires a valid email address as first input.";
IsCalculatingKey = false;
return;
}
}
try
{
CalculatedKey = await CalculateNewKey(keyType, UserName, UserPassword);
TryClose(CalculatedKey != null);
}
catch (Exception)
{
CalculationError = "Key calculation failed.";
}
}
else
{
CalculationError = "Please enter something in both fields.";
}
IsCalculatingKey = false;
}
public void AddKey(Key key)
{
if (key == null) return;
var currentKeyStore = Keystore;
if (currentKeyStore.Keys == null)
{
currentKeyStore.Keys = new List<Key>();
}
currentKeyStore.Keys.Add(key);
Keystore = currentKeyStore;
}
public void RemoveKey(Key key)
{
var currentKeyStore = Keystore;
if (currentKeyStore.Keys != null)
{
for (var i = 0; i < currentKeyStore.Keys.Count; i++)
{
if (currentKeyStore.Keys[i].PublicKey.SequenceEqual(key.PublicKey))
{
currentKeyStore.Keys.RemoveAt(0);
}
}
Keystore = currentKeyStore;
}
}
/// <summary>
/// Calculate a new key.
/// </summary>
/// <returns>A calculated key.</returns>
private static async Task<Key> CalculateNewKey(KeyType keyType, string userInputOne, string userInputTwo)
{
var newKey = await Task.Run(() =>
{
var keyPair = KeyGenerator.GenerateBytejailKeyPair(userInputOne, userInputTwo);
var key = new Key
{
KeyType = keyType,
PrivateKey = keyPair.PrivateKey,
PublicKey = keyPair.PublicKey
};
return key;
}).ConfigureAwait(true);
return newKey;
}
/// <summary>
/// Remove a key from the store and the listview.
/// </summary>
/// <param name="key">The key to remove.</param>
private void RemoveKey(Key key)
{
_lageantCore.RemoveKey(key);
_keys.Remove(key);
}
/// <summary>
/// Add a key to the store and the listview.
/// </summary>
/// <param name="key">The key to add.</param>
private void AddKey(Key key)
{
_lageantCore.AddKey(key);
_keys.Add(key);
}
/// <summary>
/// Generate a new random key.
/// </summary>
/// <returns>A random key.</returns>
private static Key GenerateNewKey()
{
var keyPair = PublicKeyBox.GenerateKeyPair();
var key = new Key
{
KeyType = KeyType.Lageant,
PrivateKey = keyPair.PrivateKey,
PublicKey = keyPair.PublicKey,
KeyId = SodiumCore.GetRandomBytes(8),
KeySalt = PasswordHash.GenerateSalt(),
KeyNonce = PublicKeyBox.GenerateNonce()
};
return key;
}
public async void LoadMinisignKeyIntoKeystore()
{
MainViewError = string.Empty;
IsWorking = true;
string filename;
string password;
var openFileDialog = new OpenFileDialog
{
DefaultExt = ".key",
Filter = "Minisign private key (.key)|*.key",
Multiselect = false
};
var result = openFileDialog.ShowDialog();
if (result == true)
{
filename = openFileDialog.FileName;
try
{
var win = new PasswordInputViewModel {DisplayName = "Enter minisign password"};
dynamic settings = new ExpandoObject();
settings.WindowStartupLocation = WindowStartupLocation.CenterOwner;
settings.Owner = GetView();
var inputOk = _windowManager.ShowDialog(win, null, settings);
if (inputOk == true)
{
password = win.UserPassword;
if (!string.IsNullOrEmpty(password))
{
var newKey = await Task.Run(() =>
{
var calculatedKey = new Key();
try
{
calculatedKey.KeyType = KeyType.Minisign;
var keyPair = Minisign.LoadPrivateKeyFromFile(filename, password);
calculatedKey.PublicKey = keyPair.PublicKey;
calculatedKey.PrivateKey = keyPair.SecretKey;
calculatedKey.KeyId = keyPair.KeyId;
}
catch (OutOfMemoryException)
{
MainViewError = "Could not load minisign key (out of memory).";
}
catch (Exception)
{
MainViewError = "Could not load minisign key.";
}
return calculatedKey;
}).ConfigureAwait(true);
if (newKey != null)
{
if (newKey.PrivateKey != null)
{
AddKey(newKey);
}
}
}
else
{
MainViewError = "Could not load minisign key (missing password)";
}
}
}
catch (Exception)
{
MainViewError = "Could not load minisign key (failure)";
}
}
else
{
MainViewError = "Could not load minisign key (missing password)";
}
IsWorking = false;
}
/// <summary>
/// Store/Export a key to file.
/// </summary>
public async void ExportKeyToFile()
{
MainViewError = string.Empty;
IsWorking = true;
string password;
if (SelectedKey != null)
{
var exportKey = new Key
{
PublicKey = SelectedKey.PublicKey,
PrivateKey = SelectedKey.PrivateKey,
KeyType = SelectedKey.KeyType,
KeyId = SelectedKey.KeyId ?? null,
KeySalt = SelectedKey.KeySalt ?? PasswordHash.GenerateSalt(),
KeyNonce = SelectedKey.KeyNonce ?? SecretBox.GenerateNonce()
};
var saveFileDialog = new SaveFileDialog
{
OverwritePrompt = true,
AddExtension = true,
DefaultExt = ".lkey"
};
if (exportKey.KeyId != null)
{
saveFileDialog.FileName = Utilities.BinaryToHex(exportKey.KeyId);
}
var result = saveFileDialog.ShowDialog();
if (result == true)
{
var filename = saveFileDialog.FileName;
try
{
var win = new PasswordInputViewModel {DisplayName = "Enter a new protection password"};
dynamic settings = new ExpandoObject();
settings.WindowStartupLocation = WindowStartupLocation.CenterOwner;
settings.Owner = GetView();
var inputOk = _windowManager.ShowDialog(win, null, settings);
if (inputOk == true)
{
password = win.UserPassword;
if (!string.IsNullOrEmpty(password))
{
var encryptionKey = await Task.Run(() =>
{
var tmpKey = new byte[32];
try
{
tmpKey = PasswordHash.ScryptHashBinary(Encoding.UTF8.GetBytes(password),
exportKey.KeySalt, PasswordHash.Strength.MediumSlow, 32);
}
catch (OutOfMemoryException)
{
MainViewError = "Could not export key (out of memory).";
}
catch (Exception)
{
MainViewError = "Could not export key.";
}
return tmpKey;
}).ConfigureAwait(true);
if (encryptionKey != null)
{
exportKey.PrivateKey = SecretBox.Create(exportKey.PrivateKey, exportKey.KeyNonce,
encryptionKey);
using (var keyFileStream = File.OpenWrite(filename))
{
Serializer.SerializeWithLengthPrefix(keyFileStream, exportKey,
PrefixStyle.Base128,
0);
}
}
else
{
MainViewError = "Could not export key (missing encryption key?)";
}
}
else
{
MainViewError = "Could not export key (missing password)";
}
}
}
catch (Exception)
{
MainViewError = "Could not export key (failure)";
}
}
else
{
MainViewError = "Could not export key (missing password)";
}
}
IsWorking = false;
}
