Dynamic Image Grid Authentication System
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Solution Overview
Problem
Existing online transaction authentication methods lack robustness and user experience, particularly in verifying user identity over networks, as they often rely on static physical tokens or cumbersome processes.
Innovation Solution
A system that uses a grid of colored cells with images on a PC screen and a corresponding blank grid on a smartphone app, where users select and recognize images, with an optional terminator button, to authenticate through a series of interactive graphic objects, ensuring secure and dynamic verification.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If static physical tokens are used for authentication, then device complexity is reduced, but reliability of authentication is insufficient
Solution Approach 1:
The patent uses a digital copy of the physical grid on the smartphone screen to replace the need for physical tokens. The virtual grid replicates the authentication functionality of physical tokens while enabling dynamic image display and verification, thereby improving security without significantly increasing user-side device complexity
Solution Approach 2:
The patent transitions from static physical tokens to dynamic digital images that can change over time. The grid cells display different images (smileys, animals, objects) that are randomly selected and can be updated, making the authentication system adaptive and more secure while maintaining simplicity through software-based implementation
2Ease of operation
If traditional authentication methods are used, then ease of operation is maintained, but user experience is cumbersome
Solution Approach 1:
The system allows users to authenticate themselves by independently identifying images in the grid and entering coordinates without requiring external verification or complex interactions. The user autonomously completes the authentication process by matching observed images with their smartphone display, simplifying the user experience while maintaining security
Solution Approach 2:
The grid of images serves as an intermediary between the user and the authentication system. Instead of directly transmitting credentials, the system uses the visual grid as a medium that the user interacts with by identifying and reporting image positions, creating a simplified and more user-friendly authentication flow
3Reliability
If image recognition is implemented, then reliability of authentication is improved, but difficulty of detecting and measuring increases
Solution Approach 1:
The authentication grid is divided into discrete cells with specific coordinates, segmenting the image recognition task into manageable units. Users only need to identify which cell contains a specific image and report its coordinates, rather than analyzing entire images, thereby reducing the perceived complexity while maintaining verification reliability
Solution Approach 2:
Different grid cells contain different types of images (smileys, animals, objects) with distinct visual characteristics. This local differentiation allows users to easily distinguish between cells based on image content, making the detection task simpler while ensuring reliable identification and authentication
Data Source
AI summary
Authenticating method for a user of a service uses both a personal computer (PC) and a personal connectable device over a communications network. An enrollment phase must be fulfilled first, for determining a list of properties of the user. Request for a new session is accompanied by the submission of credentials by the user. Then, a type 1 graphic interactive object is evoked in which a grid of colored cells shows on the user PC screen and at least some of the cells of the grid contain images, and at least one was chosen by the user in the enrolment phase. Service continues with an assessment stage unless a type 2 graphic interactive object is employed. A type 2 graphic interactive object only at least one cell in which a color identical to the color appears in the cell on the PC in which a chosen image appeared before.