This ppt gives a perfect description about 3d passwords.There is not much known about it ,but i have tried my best to bring the most of the concepts to the front regarding this topic

1. 3-D Password Scheme For more secure authentication

2. Authentication Authentication is a process of validating who are you to whom you claimed to be Human authentication techniques are as follows: Knowledge Base (What you know) Token Based(what you have) Biometrics(what you are) Recognition Based(What you recognise)

3. Common Authentication Techniques used in computer world Textual Passwords(Recall Based)-:Recall what you have created before. Graphical Passwords: (Recall Based+Recognition Based) Biometric schemes (fingerprints,voice recognition etc)

4. Drawbacks Textual Password: Textual Passwords should be easy to remember at the same time hard to guess Full password space for 8 characters consisting of both numbers and characters is 2 X 10¹⁴ From an research 25% of the passwords out of 15,000 users can guessed correctly by using brute force dictionary

5. Drawbacks Graphical Password Graphical passwords can be easily recorded as these schemes take a long time. One main drawback of applying biometric is its intrusiveness upon a users personnel characteristics. They require special scanning device to authenticate the user which is not acceptable for remote and internet users.

6. 3D PASSWORD SCHEME The 3D Password scheme is a new authentication scheme that combine RECOGNITION + RECALL +TOKENS +BIOMETRIC In one authentication system

7. The 3D password presents a virtual environment containing various virtual objects. The user walks through the environment and interacts with the objects The 3d Password is simply the combination and sequence of user interactions that occur in the 3D environment

9. A fingerprint reader that requires users fingerprint

10. A paper or white board on which user can type

11. A Automated teller(ATM) machine that requires a token

12. A light that can be switched on/off

13. A television or radio

14. A car that can be driven

16. (10,24,91) Action=Close office door

17. (4,34,18) Action=Tpeine,”C”

18. (4,34,18) Action=Typing,”O”

19. (4,34,18)Action=Typing,”N”

20. (10,24,80)Action=Pick up the pen

25. Strength: This scenario provides almost unlimited passwords possibility.

26. Ease to Memorize: can be remembered in the form of short story.

28. Attacks and Countermeasures Brute Force Attack: The attack is very difficult because Time required to login may vary form 20s to 2 min therefore it is very time consuming. Cost of Attack: A 3D Virtual environment may contain biometric object ,the attacker has to forge all biometric information. Well Studied Attack: Attacker tries to get the most probable distribution of 3D Password. This is difficult because attacker has to perform customized attack fo different virtual environment .

29. Shoulder Surfing Attacks: Attacker uses camera to record the users 3D passwords.This attack is more succesful Timing Attack: The Attacker observes how long it takes the legitimate user to perform correct log in using 3D Password.which gives an indication of 3-D Passwords length.This attack cannot be succesful since it gives the attacker mere hints.

30. QUERIES ??...