Design of authentication schemes based on graphical password and analysis of its security

To solve the conflict of security and memorability of password in authentication method.According to the significant drawbacks of alphanumerical passwords,new authentication schemes based on graphical password are proposed.Under the design requirement of graphical password,the recognition-based and recall-based graphical password authentication schemes are proposed.In addition,it's illustrated that graphical password has better memorability and security than text password.And it's shown graphical password has better resistance to most password attacks.Indicated that most graphical password authentication schems are better then traditional password.