Sketch-Based User Authentication System
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Solution Overview
Problem
Text-based authentication methods are vulnerable to hackers, leading to security concerns and identity theft due to the need for cumbersome passwords and the risk of stolen passwords being misused.
Innovation Solution
A graphical, sketch-based authentication system that learns a user's sketching skills by prompting them to draw random subjects, comparing the sketches to a freehand model, and authenticating based on the similarity between the user's sketches and their predicted sketching patterns, eliminating the need for traditional passwords.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If text-based authentication using passwords is used, then authentication functionality is provided, but security vulnerability to hackers and identity theft increases
Solution Approach 1:
The patent replaces the mechanical/text-based password input system with a graphical sketching system. Instead of typing characters, users draw images or patterns on a graphical interface. This substitution fundamentally changes the authentication mechanism from text-based to visual-based, making it resistant to traditional hacking methods that target password databases and input methods.
Solution Approach 2:
The patent changes the parameter of authentication from textual information (passwords) to graphical information (sketches, drawings, patterns). This parameter change transforms the authentication space from something that can be easily stolen and reused (text passwords) to something that is unique, difficult to replicate, and resistant to theft (graphical sketches with specific stylistic characteristics).
2Ease of operation
If traditional password authentication is used, then authentication is provided, but the process becomes cumbersome and security concerns arise
Solution Approach 1:
The patent replaces the cumbersome mechanical action of remembering and typing complex passwords with the more natural and intuitive action of drawing or sketching. Users can authenticate by drawing simple images, patterns, or even their signature, which is generally easier and more memorable than complex password strings while maintaining or improving security.
3Reliability
If passwords are stolen, then authentication access is compromised, but the system lacks protection against misuse of stolen credentials
Solution Approach 1:
By changing authentication from text-based to graphical-based, the patent creates credentials that are inherently resistant to theft and misuse. Graphical sketches contain stylistic information (brush strokes, pressure patterns, timing) that is extremely difficult to replicate or steal, unlike text passwords that can be easily captured and reused. This parameter change directly addresses the vulnerability to stolen credentials.
Data Source
AI summary
Methods, systems, and products authenticate users for access to devices, applications, and services. Skills of a user are learned over time, such that an electronic model of random subject matter may be generated. The user is prompted to interpret the random subject matter, such as with an electronic drawing. The user's interpretation is then compared to the electronic model of the random subject matter. If the user's interpretation matches the electronic model, the user may be authenticated.