* Must be between 6 and 16 characters long.
    * Must be between 6 and 16 characters long.
    * May not contain whitespace characters (i.e. space, tab, etc.).
    * May not contain whitespace characters (i.e. space, tab, etc.).
    * Must have at least 2 of the following characteristics: 1 digit,1 non alphanumeric character, 1 upper case letter, 1 lower case letter.
    * Must have at least 2 of the following characteristics: 1 digit,1 non alphanumeric character, 1 upper case letter, 1 lower case letter.
    * May not contain English dictionary words longer than 3 letters: matched case insensitive, matched forwards and backwards.
    * May not contain English dictionary words longer than 3 letters: matched case insensitive, matched forwards and backwards.
    * May not contain common keyboard sequences (eg. 12345, aaaaa): matched case insensitive, matched forwards and backwards.
    * May not contain your username: matched case insensitive, matched forwards and backwards.
    * May not contain common keyboard sequences (eg. 12345, aaaaa): matched case insensitive, matched forwards and backwards.
    * May not contain your username: matched case insensitive, matched forwards and backwards.
    * You may not re-use any of your 4 most recent passwords.
    * Examples of valid passwords (you MAY NOT use one of these as your password): IHmp2sy, mmisagc!, Tpi2h2r, 1cscmp, i1han4eticmp