Recognition-Based Authentication

A type of graphical authentication where users authenticate by recognizing and selecting previously registered images from a set that includes decoy images. Unlike recall-based systems that require users to remember and reproduce a pattern, recognition-based systems leverage the human ability to recognize familiar images—a cognitively easier task. This approach is particularly accessible for people with motor impairments because it requires only simple selection actions rather than precise gestures, and it can work with various assistive technologies including eye-gaze trackers, voice interfaces, and adaptive input devices.