Current authentication systems suffer from many weaknesses. Textual passwords are commonly used. Users tend to choose common words from dictionaries and day to day life, which make textual passwords easy to crack and exposed to dictionary or basic force attacks. Smart cards or tokens can be stolen. Many biometric authentications have been proposed but some people hate the fact to carry around their cards, some refuse to undergo strong IR exposure to their retinas. The 3-D password is a multifactor authentication scheme.