Two-Dimensional Grid Pattern Authentication for Password Security

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Solution Overview

Problem

Traditional password authentication methods are insecure, as simple passwords can be easily hacked using brute force attacks, while complex passwords are difficult for users to remember and may be forgotten or written down, compromising security.

Innovation Solution

The use of an associated pattern in a two-dimensional grid, where multiple symbols can be entered into each cell, and users can select from multiple grids for authentication, requiring correct grid selection and symbol placement to authenticate, thereby enhancing security without increasing user input complexity.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If a simple password is chosen, then ease of operation is improved, but security deteriorates

Engineering Contradiction:
Improveease of remembering passwordVSAvoidpassword security
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The patent transforms the traditional one-dimensional password input into a two-dimensional grid-based pattern system. Users draw patterns on a grid with multiple cells, where each cell can contain multiple symbols. This dimensional expansion increases the search space from MN to M(X*T*N), making brute force attacks significantly harder while allowing users to maintain simple passwords they can remember.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

Solution Approach 2:

The patent divides the password authentication process into multiple independent components: grid selection, pattern drawing, and symbol placement within cells. Each cell in the grid can independently contain multiple symbols, and users must correctly identify the grid, draw the pattern, and specify symbol positions. This segmentation creates multiple layers of security that work together to protect the password.

Inventive Principle:
Principle #1Segmentation

2Reliability

If a complex password is chosen, then security is improved, but ease of operation deteriorates

Engineering Contradiction:
Improvepassword securityVSAvoidease of remembering password
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

By moving to a two-dimensional grid interface with multiple cells and multiple symbols per cell, the system achieves high security without requiring users to remember complex password strings. The security comes from the combinatorial complexity of grid selection, pattern coordinates, and symbol placement rather than password complexity itself.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

Solution Approach 2:

The grid pattern system acts as an intermediary between the user and the actual password. Instead of directly protecting the password through complexity, the system uses the grid pattern as an additional authentication layer that mediates access control. The password remains simple and memorable, while the grid pattern provides the security enhancement.

Inventive Principle:
Principle #24Intermediary (Mediator)

3Device complexity

If traditional one-dimensional password input is used, then device complexity is reduced, but security deteriorates

Engineering Contradiction:
Improveinput interface simplicityVSAvoidauthentication security
Core Design Contradiction:
Device complexityVSReliability

Solution Approach 1:

The patent enhances the input interface by adding a spatial dimension to password authentication. The two-dimensional grid with multiple cells and multiple symbols per cell creates a rich authentication space without significantly increasing interface complexity. Users interact with familiar grid and drawing concepts, making the enhanced interface intuitive despite the increased security capabilities.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

Solution Approach 2:

The grid-based input system serves multiple functions: it provides visual feedback, enables pattern recognition, supports multiple symbol selection, and creates authentication complexity. This multi-functional design achieves high security while maintaining interface simplicity and user familiarity.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Data Source

PatentUS9117068B1Password protection using pattern
Publication Date: 2015.08.25 TREND MICRO INC
  • US9117068B1 patent drawing
  • US9117068B1 patent drawing
  • US9117068B1 patent drawing

AI summary

A user creates a pattern in a two-dimensional grid by entering a password and enters a user name. This user name, password and pattern are stored locally on a computing device or are transmitted to a remote computer server for later authentication. Upon authentication, a choice of input grids is displayed. The user chooses a grid, enters the password into the grid in the form of the pattern, and also enters the user name. The computer retrieves the previously stored pattern and password with the user name. A match with the stored password indicates authentication. Each cell of the input grid may contain more than one symbol of the password. The input grid may also be filled with random characters to improve security. A grid may be a rectangular matrix, a circular region, an asymmetrical region, or other.