public async Task <bool> EncryptAsync(string publicKey, IList <byte> dataArray, IList <byte> localPassword)
{
IBuffer keyMaterial;
//if (await KeyCredentialManager.IsSupportedAsync())
//{
// var boh = await KeyCredentialManager.RequestCreateAsync(publicKey, KeyCredentialCreationOption.ReplaceExisting);
// if (boh.Status == KeyCredentialStatus.Success)
// {
// var boh2 = await boh.Credential.RequestSignAsync()
// }
//}
//else
{
var dialog = new SettingsPasscodeInputPopup();
var confirm = await dialog.ShowQueuedAsync();
if (confirm != ContentDialogResult.Primary)
{
return(false);
}
var secret = CryptographicBuffer.ConvertStringToBinary(dialog.Passcode, BinaryStringEncoding.Utf8);
var salt = CryptographicBuffer.GenerateRandom(32);
var material = PBKDF2(secret, salt);
var data = CryptographicBuffer.CreateFromByteArray(dataArray.ToArray());
var objAlg = SymmetricKeyAlgorithmProvider.OpenAlgorithm(SymmetricAlgorithmNames.AesEcbPkcs7);
var key = objAlg.CreateSymmetricKey(material);
var encrypt = CryptographicEngine.Encrypt(key, data, null);
var saltString = CryptographicBuffer.EncodeToHexString(salt);
var dataString = CryptographicBuffer.EncodeToHexString(encrypt);
var localPasswordBuffer = CryptographicBuffer.CreateFromByteArray(localPassword.ToArray());
var localPasswordString = CryptographicBuffer.EncodeToHexString(localPasswordBuffer);
var vault = new PasswordVault();
var password = $"{saltString};{dataString};{localPasswordString};{(dialog.IsSimple ? 1 : 2)}";
vault.Add(new PasswordCredential($"{_session}", publicKey, password));
}
return(true);
}
private async void EditExecute()
{
var timeout = _passcodeService.AutolockTimeout + 0;
var dialog = new SettingsPasscodeInputPopup();
dialog.IsSimple = _passcodeService.IsSimple;
var confirm = await dialog.ShowQueuedAsync();
if (confirm == ContentDialogResult.Primary)
{
var passcode = dialog.Passcode;
var simple = dialog.IsSimple;
_passcodeService.Set(passcode, simple, timeout);
InactivityHelper.Initialize(timeout);
}
}
public async Task TogglePasscode()
{
if (_passcodeService.IsEnabled)
{
_passcodeService.Reset();
}
else
{
var timeout = _passcodeService.AutolockTimeout + 0;
var dialog = new SettingsPasscodeInputPopup();
dialog.IsSimple = _passcodeService.IsSimple;
var confirm = await dialog.ShowQueuedAsync();
if (confirm == ContentDialogResult.Primary)
{
var passcode = dialog.Passcode;
var simple = dialog.IsSimple;
_passcodeService.Set(passcode, simple, timeout);
InactivityHelper.Initialize(timeout);
}
}
}
