/// <summary>
/// Reads password from console displaying substitute characters instead of real ones
/// into a sealed SecureBuffer
/// </summary>
public static SecureBuffer ReadPasswordToSecureBuffer(char substitute)
{
var result = new SecureBuffer();
while (true)
{
char c = System.Console.ReadKey(true).KeyChar;
if (Char.IsControl(c))
{
result.Seal();
return(result);
}
var buf = Encoding.UTF8.GetBytes(new char[] { c });
for (var i = 0; i < buf.Length; i++)
{
result.Push(buf[i]);
}
Array.Clear(buf, 0, buf.Length);
if (substitute != (char)0)
{
System.Console.Write(substitute);
}
}
}
private void tbPassword_TextChanged(object sender, EventArgs e)
{
var pm = App.SecurityManager.PasswordManager;
var bytes = Encoding.UTF8.GetBytes(tbPassword.Text);
using (var password = new SecureBuffer(bytes.Length))
{
foreach (var b in bytes)
{
password.Push(b);
}
Array.Clear(bytes, 0, bytes.Length);
password.Seal();
var hash = pm.ComputeHash(PasswordFamily.Text, password);
Text = "Score: {0} Easy%: {1} Normal%: {2} Hard%: {3}".Args(
pm.CalculateStrenghtScore(PasswordFamily.Text, password),
pm.CalculateStrenghtPercent(PasswordFamily.Text, password, DefaultPasswordManager.TOP_SCORE_MINIMUM),
pm.CalculateStrenghtPercent(PasswordFamily.Text, password, DefaultPasswordManager.TOP_SCORE_NORMAL),
pm.CalculateStrenghtPercent(PasswordFamily.Text, password, DefaultPasswordManager.TOP_SCORE_MAXIMUM));
tbJSON.Text = hash.ToString();
}
}