Reads a password from the console, but only displays "*" characters.

ReadPasswordFromConsole

private static string ReadPasswordFromConsole()
{
        Console.TreatControlCAsInput = true;
	var sb = new StringBuilder();
	while (Console.ReadKey(true) is ConsoleKeyInfo cki && cki.Key != ConsoleKey.Enter)
	{
                if (cki.Modifiers == ConsoleModifiers.Control && cki.Key == ConsoleKey.C)
	        {
			break;
		}
		else if (sb.Length > 0 && cki.Key == ConsoleKey.Backspace)
		{
			Console.Write("\b \b");
			sb.Length--;
			continue;
		}
		else
		{
			Console.Write('*');
			sb.Append(cki.KeyChar);
		}
	}
	Console.WriteLine();
	return sb.ToString();
}