Persuasive cued click-points: Design, implementation, and evaluation of a knowledge-based “Graphical password authentication using cued click points. Request PDF on ResearchGate | Graphical Password Authentication Using Cued Click Points | We propose and examine the usability and. Cued Click Points Password Authentication using Picture Grids. Article (PDF . new click-based graphical password scheme called Cued.

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Ideally, a larger theoretical password space lowers the likelihood that any particular guess is correct for a given password.

Graphical Password Authentication Using Cued Click Points

After done with all these above procedure, user profile vector will be created. Using a graphical password, users click on images rather than type alphanumeric characters. Our goal was to encourage compliance by making the less secure task i.

Parts of this paper appeared earlier in publications [1], [2], [3], [4], [5],[16],[17],[18]. The shuffle button was used moderately. Effects of Tolerance and Image Choice. The approach has proven effective at reducing the formation of hotspots, avoid shoulder usign problem and also provide high security success rate, while still maintaining usability.

Uisng general, graphical passwords techniques are classified into two main categories: This password authentication system allows user choice while influencing users towards stronger passwords.

Computer Security Applications Conf. Similarly the participant select a click point each of the images.

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Clck of the proposed attacks on PassPoints is an automated pattern-based dictionary attack that prioritizes passwords consisting of click-points ordered in a consistent horizontal and vertical direction including authenticafion lines in any direction, arcs, and step patternsbut ignores any image-specific features such as hotspots. The main issues of knowledge-based authentication, usually text-based passwords, are well known. For PCCP, more effort may be required to describe each image and the exact location of each click-point.


Offline dictionary attacks become even less tractable. Journal of Human- Computer Studies 63, They felt that PCCP passwords were easy to create and quick to enter, but they remained impartial on their preference between text and graphical passwords. Then images are displayed normally, without shading or the viewport, and repeat the sequence of clicks in the correct order, within a system-defined tolerance square of the original click-points.

It was found that although relatively usable, security concerns remain. In recall based graphical password, a user is asked to reproduce something that he created or selected earlier during the registration stage.

Each image consists of only one click point as a user password. In successful guessing attacks, attackers are able to either exhaustively search through the entire theoretical password space, or predict higher probability passwords i.


Though, users have difficulty remembering a password that is long and random-appearing. The area around an original click point accepted as correct since it is unrealistic to expect user to accurately target an exact pixel. Each image consists of different characters image detailsamong which the participant needs to click on any one point of his choice to make it a click point in the series.

In user registration module user enter the user name in user name field and also suitable tolerance value tolerance value is use to compare registration profile vector with login profile vector. Attacks can target a single account, or can try guessing passwords on a large number of accounts in hopes of breaking into any of them.

Although attackers must perform proportionally more work to exploit hotspots, results showed that hotspots remained a problem [2]. We thank the participants of our lab study for their time andValuable feedback. The next image displayed is based on the location cud the previously entered click-point see Figure 2creating a path through an image set. Although most users would likely choose the minimum number of click-points, those concerned with security and confident about memorability could select a clik password.


The claimed advantages are that password entry becomes a true cued-recall scenario, wherein each image triggers the memory of a corresponding click-point.

All three cued-recall schemes discussed PCCP, CCP, and PassPoints are susceptible to shoulder surfing although no published empirical study to date has examined the extent of the threat. Graphical password systems are a type of cllick authentication that attempts to leverage the human memory for visual information. In picture selection phase user select any image as passwords and consist of a sequence of five click-points on a given image.

Rather than five click-points on one image, CCP uses one click-point on five different images shown in sequence. Among which the participant needs to click on any one point of his choice to make it a click point in the series.

During each trial, participants answered Likert-scale questions correspond to those reported in the previously cited studies A Likert scale is a psychometric scale commonly involved in research that employs questionnaires. Using CCP as a base system, we added a persuasive feature to encourage users to select more secure passwords, and to make it more difficult to select passwords where all five click-points are hotspots.