Stochastic Image Authentication Without Stored User Images

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Solution Overview

Problem

Existing authentication systems require users to remember passwords and pin codes, which can be compromised by unauthorized users, and storing user images raises storage and privacy concerns.

Innovation Solution

Utilizing stochastic models to generate images based on user account details, displayed alongside other images for authentication, without storing the generated images, making it difficult for malicious actors to predict the correct image.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If user images are stored for authentication, then authentication can be performed using familiar images, but storage requirements increase and privacy concerns arise

Engineering Contradiction:
Improveauthentication convenienceVSAvoiddata storage requirements
Core Design Contradiction:
Ease of operationVSQuantity of substance

Solution Approach 1:

The system generates stochastic copies of user account information that visually resemble the original data but contain no actual user information. These synthetic images serve as authentication tokens without requiring storage of real user images, thus maintaining authentication convenience while eliminating storage and privacy concerns

Inventive Principle:
Principle #26Copying

Solution Approach 2:

A stochastic model acts as an intermediary between user account information and authentication images. The model transforms sensitive account data into synthetic images that preserve recognizable patterns for user identification while removing actual sensitive information, thereby enabling authentication without storing user images

Inventive Principle:
Principle #24Intermediary (Mediator)

2Ease of operation

If static security details like passwords are used, then authentication is simple, but they can be learned or guessed by unauthorized users

Engineering Contradiction:
Improveauthentication simplicityVSAvoidsecurity against prediction
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The system transitions from static passwords to dynamic stochastic images that are generated fresh each authentication attempt. Each image is unique and unpredictable, yet remains recognizable to the account holder through preserved visual patterns, thereby maintaining simplicity while dramatically improving security against prediction and replay attacks

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The authentication mechanism changes from fixed-parameter passwords to variable-parameter stochastic images. The stochastic model introduces randomness in image generation while preserving key visual characteristics, creating authentication tokens that are both simple to recognize and impossible to predict, thus resolving the contradiction between simplicity and security

Inventive Principle:
Principle #35Parameter changes

Data Source

PatentUS12418416B2Facilitating authentication using stochastic-model-derived images
Publication Date: 2025.09.16 CAPITAL ONE SERVICES LLC
  • US12418416B2 patent drawing
  • US12418416B2 patent drawing
  • US12418416B2 patent drawing

AI summary

Methods and systems are described herein for facilitating token use authentication using stochastic-model-derived images. The system may detect an authentication request to authenticate use of an access token and retrieve operation data associated with the access token. The system may determine, based on the operation data, source data associated with a source of a network operation and alternative source data associated with an alternative source. The system may provide, to a stochastic machine learning model, the source data to obtain a first image for the network operation and the alternative source data to obtain a second image for the network operation. The system may then generate, for display, the first image and the second image and may receive a selection of the first image. Based on the selection of the first image, the system may grant the authentication request.