/// <summary>
/// Show passwors summary elements according password
/// </summary>
private void SetPasswordSummary()
{
Zxcvbn.Result passwordResult = PasswordEvaluatorEngine.EvaluatePassword(txtPassword.Text);
lblPasswordLengthValue.Text = string.Concat(txtPassword.Text.Length, " ch.");
lblPasswordCrackTimeValue.Text = passwordResult.CrackTimeDisplay;
lblPasswordEntropyValue.Text = string.Concat(Math.Round(passwordResult.Entropy), " bits");
cpbPasswordStrength.Value = passwordResult.Score + 1;
cpbPasswordStrength.Text = (passwordResult.Score + 1).ToString();
switch (passwordResult.Score)
{
case 0:
lblPasswordStrength.Text = "Very weak";
lblPasswordStrength.ForeColor = Color.Red;
cpbPasswordStrength.ForeColor = Color.Red;
cpbPasswordStrength.ProgressColor = Color.Red;
break;
case 1:
lblPasswordStrength.Text = "Weak";
lblPasswordStrength.ForeColor = ControlPaint.Light(Color.Red);
cpbPasswordStrength.ForeColor = ControlPaint.Light(Color.Red);
cpbPasswordStrength.ProgressColor = ControlPaint.Light(Color.Red);
break;
case 2:
lblPasswordStrength.Text = "Medium";
lblPasswordStrength.ForeColor = ControlPaint.Light(Color.Green);
cpbPasswordStrength.ForeColor = ControlPaint.Light(Color.Green);
cpbPasswordStrength.ProgressColor = ControlPaint.Light(Color.Green);
break;
case 3:
lblPasswordStrength.Text = "Good";
lblPasswordStrength.ForeColor = Color.Green;
cpbPasswordStrength.ForeColor = Color.Green;
cpbPasswordStrength.ProgressColor = Color.Green;
break;
case 4:
lblPasswordStrength.Text = "Strong";
lblPasswordStrength.ForeColor = Color.DarkGreen;
cpbPasswordStrength.ForeColor = Color.DarkGreen;
cpbPasswordStrength.ProgressColor = Color.DarkGreen;
break;
}
}
private bool IsPasswordTooWeak(Zxcvbn.Result result)
{
return(result.Score < MinScoreAlert);
}
public async Task VerifyPasswords()
{
var accounts = await App.PwdManager.GetPasswordList();
int itemId = 0, numItems = accounts.Count, numSkip = 0;
PasswordCheckDataList.Clear();
foreach (PwdListItem item in accounts)
{
try
{
if (item.SkipCheck)
{
numSkip++;
continue;
}
Zxcvbn.Result result = Checker.EvaluatePassword(item.Password);
bool bOld = IsPasswordToOld(item);
bool bWeak = IsPasswordTooWeak(result);
if (bOld || bWeak)
{
PasswordCheckData checkData = new PasswordCheckData
{
PwdId = item.Id,
LastChange = item.LastPwdChangeDateTime
};
if (bOld)
{
checkData.Issues.Add(PwdIssue.TooOld);
}
if (bWeak)
{
checkData.Issues.Add(PwdIssue.TooWeak);
}
checkData.StrengthData.CalcTime = result.CalcTime;
checkData.StrengthData.CrackTime = result.CrackTime;
checkData.StrengthData.Entropy = Math.Round(result.Entropy) - 1;
checkData.StrengthData.Score = result.Score;
PasswordCheckDataList.Add(checkData);
}
}
finally
{
Device.BeginInvokeOnMainThread(() =>
{
OnVerify?.Invoke(++itemId, numItems, item);
});
}
}
LastCheck = DateTime.Now;
NumberOfPassword = numItems;
NumberOfSkippedPassword = numSkip;
SaveCache();
}
