Dynamic Physics-Based Authentication Challenge System
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Solution Overview
Problem
Current user authentication methods, such as CAPTCHA programs, are often frustrating for human users while being easily bypassed by sophisticated agents, failing to prevent automated abuse of computer systems effectively.
Innovation Solution
A method and system for user authentication that presents challenges involving moving images or objects obeying gravity, orientation, visual properties, and complex interactions, making it difficult for agents to pass without significant labor, while being easy for humans to comply with.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If character-based CAPTCHA authentication programs are used, then automated agents are prevented from accessing the computer, but human users find it frustrating and tedious to read disguised characters
Solution Approach 1:
The patent transforms the authentication challenge from static character recognition to dynamic physics-based reasoning. By changing the parameter from 'recognize disguised text' to 'predict object motion under gravity', the system maintains security while improving usability, as humans naturally understand physics without needing to decipher obscured characters
Solution Approach 2:
The patent replaces the mechanical/visual system of character display and recognition with a physics simulation system. Instead of presenting static or disguised text elements, the system presents moving images of objects obeying gravitational laws, substituting visual pattern recognition with physics-based reasoning that is more intuitive for humans
2Reliability
If photo-based CAPTCHA authentication programs are used, then automated agents are prevented from accessing the computer, but human users find it frustrating and tedious to decide whether instructions apply to photographs with ambiguous contents
Solution Approach 1:
The patent changes the challenge parameter from 'categorize ambiguous image content' to 'predict motion outcome based on physics principles'. This transformation eliminates ambiguity by relying on universal physical laws (gravity, momentum) that produce clear, deterministic outcomes, making the task more intuitive for human users while maintaining agent deterrence
Solution Approach 2:
The patent replaces the static image classification system with a dynamic physics simulation system. Instead of presenting ambiguous photographs requiring semantic interpretation, the system presents controlled physics scenarios with clear initial conditions and observable outcomes, substituting image analysis with physics reasoning
3Reliability
If character-based or photo-based CAPTCHA authentication programs are used, then automated agents are prevented to some extent, but sophisticated agents can determine the answer despite the disguise
Solution Approach 1:
The patent fundamentally changes the challenge parameter from pattern recognition (characters, image classification) to physics simulation and prediction. This increases agent complexity requirements because agents must now simulate physical systems, calculate trajectories, and predict outcomes based on multiple interacting variables, rather than simply recognizing visual patterns
Solution Approach 2:
The patent replaces visual pattern recognition systems with physics-based reasoning systems. This substitution increases the computational complexity for agents, as they must implement physics engines and simulation logic rather than using simpler image recognition techniques, thereby raising the bar for successful bypass attempts
Data Source
AI summary
A method enables website providers to prohibit non-human users, such as programmed agents, from viewing their websites. According to a method for user authentication according to an embodiment, an authentication challenge is generated by a computing device, the authentication challenge including a number of challenge elements. The authentication challenge is presented to a user of a computing device and the user responds to the authentication challenge by selecting one or more challenge elements in accordance with an instruction provided to the user on how to complete the authentication challenge. The user is then notified whether they have successfully chosen the correct challenge element/s.