public static void ValidatePassword(string password)
{
var passwordHash = UserDataEncryption.Hash(password);
if (passwordHash != CrossSecureStorage.Current.GetValue(PasswordHash))
{
throw new InvalidUserInputException(new ExcInfo(), Details.AuthInvalidUserInputPassword);
}
}
public static void UpdateUser(string password)
{
ValidatePassword(password);
var encryptionSalt = CrossSecureStorage.Current.GetValue(EncryptionSalt);
var serializedUser = JsonConvert.SerializeObject(UserService.CurrentUser);
var encryptedUser = UserDataEncryption.Encrypt(serializedUser, password, encryptionSalt);
CrossSecureStorage.Current.SetValue(CurrentUser, encryptedUser);
}
public static async Task LoginUser(string password)
{
ValidatePassword(password);
var encryptionSalt = CrossSecureStorage.Current.GetValue(EncryptionSalt);
var encryptedUser = CrossSecureStorage.Current.GetValue(CurrentUser);
var decryptedUser = JsonConvert.DeserializeObject <User>(UserDataEncryption.Decrypt(encryptedUser, password, encryptionSalt));
decryptedUser.TangleMessenger = new TangleMessenger(new Seed(decryptedUser.Seed));
decryptedUser.NtruKeyPair = new NtruKex(true).CreateAsymmetricKeyPair(decryptedUser.Seed.ToLower(), decryptedUser.PublicKeyAddress);
UserService.SetCurrentUser(decryptedUser);
await GetUser();
}
public static void StoreUser(User user, string password)
{
if (!user.StoreSeed)
{
return;
}
var passwordHash = UserDataEncryption.Hash(password);
var encryptionSalt = Seed.Random().Value;
CrossSecureStorage.Current.SetValue(PasswordHash, passwordHash);
CrossSecureStorage.Current.SetValue(EncryptionSalt, encryptionSalt);
var serializedUser = JsonConvert.SerializeObject(user);
var encryptedUser = UserDataEncryption.Encrypt(serializedUser, password, encryptionSalt);
CrossSecureStorage.Current.SetValue(CurrentUser, encryptedUser);
}