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>
/// Load/Import a key from a file.
/// </summary>
public async void LoadKeyIntoKeystore()
{
MainViewError = string.Empty;
IsWorking = true;
string password;
var openFileDialog = new OpenFileDialog
{
DefaultExt = ".lkey",
Filter = "lkey files (.lkey)|*.lkey",
Multiselect = false
};
var result = openFileDialog.ShowDialog();
if (result == true)
{
var filename = openFileDialog.FileName;
try
{
var win = new PasswordInputViewModel {
DisplayName = "Enter key 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))
{
Key key;
using (var keyFileStream = File.OpenRead(filename))
{
key = Serializer.DeserializeWithLengthPrefix <Key>(keyFileStream, PrefixStyle.Base128, 0);
}
if (key != null)
{
var decryptionKey = await Task.Run(() =>
{
var tmpKey = new byte[32];
try
{
tmpKey =
PasswordHash.ScryptHashBinary(Encoding.UTF8.GetBytes(password),
key.KeySalt, PasswordHash.Strength.MediumSlow, 32);
}
catch (OutOfMemoryException)
{
MainViewError = "Could not load key (out of memory).";
}
catch (Exception)
{
MainViewError = "Could not load key (failure)";
}
return(tmpKey);
}).ConfigureAwait(true);
if (decryptionKey != null)
{
try
{
key.PrivateKey = SecretBox.Open(key.PrivateKey,
key.KeyNonce, decryptionKey);
// check if the key pair matches
AddKey(key);
}
catch (CryptographicException)
{
MainViewError = "Could not load key (wrong password?)";
}
}
else
{
MainViewError = "Could not load key (missing decryption key)";
}
}
else
{
MainViewError = "Could not load key (maybe not a lkey?)";
}
}
else
{
MainViewError = "Could not load key (missing password)";
}
}
else
{
MainViewError = "Could not load key (missing password)";
}
}
catch (Exception)
{
MainViewError = "Could not load key (exception)";
}
}
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;
}
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>
/// Load/Import a key from a file.
/// </summary>
public async void LoadKeyIntoKeystore()
{
MainViewError = string.Empty;
IsWorking = true;
string password;
var openFileDialog = new OpenFileDialog
{
DefaultExt = ".lkey",
Filter = "lkey files (.lkey)|*.lkey",
Multiselect = false
};
var result = openFileDialog.ShowDialog();
if (result == true)
{
var filename = openFileDialog.FileName;
try
{
var win = new PasswordInputViewModel {DisplayName = "Enter key 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))
{
Key key;
using (var keyFileStream = File.OpenRead(filename))
{
key = Serializer.DeserializeWithLengthPrefix<Key>(keyFileStream, PrefixStyle.Base128, 0);
}
if (key != null)
{
var decryptionKey = await Task.Run(() =>
{
var tmpKey = new byte[32];
try
{
tmpKey =
PasswordHash.ScryptHashBinary(Encoding.UTF8.GetBytes(password),
key.KeySalt, PasswordHash.Strength.MediumSlow, 32);
}
catch (OutOfMemoryException)
{
MainViewError = "Could not load key (out of memory).";
}
catch (Exception)
{
MainViewError = "Could not load key (failure)";
}
return tmpKey;
}).ConfigureAwait(true);
if (decryptionKey != null)
{
try
{
key.PrivateKey = SecretBox.Open(key.PrivateKey,
key.KeyNonce, decryptionKey);
// check if the key pair matches
AddKey(key);
}
catch (CryptographicException)
{
MainViewError = "Could not load key (wrong password?)";
}
}
else
{
MainViewError = "Could not load key (missing decryption key)";
}
}
else
{
MainViewError = "Could not load key (maybe not a lkey?)";
}
}
else
{
MainViewError = "Could not load key (missing password)";
}
}
else
{
MainViewError = "Could not load key (missing password)";
}
}
catch (Exception)
{
MainViewError = "Could not load key (exception)";
}
}
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;
}
