Comparative Study of 3-D Password and Textual Password

Abstract

Now days, authentication system have many problems such as textual passwords can be easily identified either by using brute force technique or by choosing meaningful words from dictionaries. To achieve this limitation many graphical password are available which take less memory space as compared to textual password. Also biometric system is used which may automate the identification or verification of an individual by identifying human characteristics. Multi factor authentication scheme is called 3-D password which represents the 3-D virtual environment of the various virtual objects. Interaction with objects takes place by the user through this environment. In 3-D virtual environment there is a sequence and combination of user interaction which is defined as 3-D password. 3-D password key space is defined by the design of 3-D virtual environment and type of objects selected.