24. GRAPHCAL PASSWORD AUTHENTICATION USING PASSPOINT SCEME

The use of passwords is the most common form of authentication, but it has its limitations, such as vulnerability to brute force attacks and difficulty in remembering complex passwords. Graphical password authentication systems offer an alternative to text-based passwords that are more secure and easier to remember. Graphical password authentication systems are becoming increasingly popular as an alternative to traditional text-based passwords. In this proposed system, we propose a novel graphical password authentication system that utilizes both images and RGB colored images for user authentication. The proposed system allows users to select a sequence of images and then the system assign a unique value to each image in the sequence. During authentication, users are required to recall the sequence of images to gain access to the system. During authentication, the user is presented with a grid of images and is required to click on the correct sequence of images. The system employs a unique image-selection algorithm that allows for dynamic image sequencing, thereby increasing password strength. The system employs a novel password strength metric that takes into account both the complexity of the image sequence and the RGB colored images. The performance of the proposed system is evaluated through user studies, and the results show that the system is both secure and easy to use. The proposed system has the potential to offer a higher level of security than traditional text-based passwords, while also addressing the issue of password memorability.