3D Signature Authentication Using Multi-Angle 2D Descriptions
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing authentication methods are limited in their ability to securely verify the authenticity of objects from various points of view, making them vulnerable to fraud and replay attacks, especially in online transactions.
Innovation Solution
The method establishes a plurality of original 2D descriptions from different adjacent points of view and compares a subsequent 2D description with the closest original description, using light-disturbing elements and algorithms to allow flexible camera placement and online identification, while incorporating a PIN code and random view sequence to prevent fraud.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a single original description is used for authentication, then the authentication process is simple, but the camera placement is restricted to a specific position
Solution Approach 1:
The patent segments the authentication process by creating multiple original descriptions from different adjacent points of view. Instead of relying on a single description, the system divides the authentication space into multiple viewing angles, allowing the camera to be placed flexibly while maintaining authentication accuracy through comparison with the nearest original description.
Solution Approach 2:
The patent transitions from a single-point authentication approach to a multi-dimensional approach by capturing descriptions from multiple adjacent points of view. This dimensional expansion creates a more robust authentication system that accommodates camera placement flexibility while maintaining security through algorithmic comparison.
2Reliability
If multiple original descriptions from different points of view are used, then fraud resistance increases, but the authentication complexity increases
Solution Approach 1:
The patent applies preliminary action by pre-establishing multiple original descriptions from different adjacent points of view before the actual authentication occurs. This preparation phase creates a comprehensive reference set that simplifies the actual authentication process, as the system only needs to compare the subsequent description with the pre-existing originals rather than generating references in real-time.
Solution Approach 2:
The system implements feedback through algorithmic comparison that automatically identifies and compares the subsequent description with the most appropriate original description based on point of view matching. This feedback mechanism ensures high reliability by selecting the best match while managing complexity through automated selection rather than manual comparison of all descriptions.
3Ease of operation
If fixed camera position is required, then authentication accuracy is maintained, but user convenience is reduced
Solution Approach 1:
The patent introduces dynamics by allowing the camera to be positioned at various adjacent points of view rather than requiring a fixed position. The system dynamically adapts by comparing the captured description with the most appropriate pre-established original description, thereby maintaining authentication accuracy while significantly improving user convenience and ease of operation.
4Reliability
If sequential view verification is used, then replay attacks are prevented, but processing time increases
Solution Approach 1:
The patent prevents replay attacks through preliminary action by pre-establishing multiple original descriptions with associated point of view metadata before authentication. During actual authentication, the system quickly identifies the nearest original description based on camera position and performs a single comparison, avoiding time-consuming sequential verification while maintaining security through the pre-prepared reference set.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This approach enhances user comfort by allowing authentication from a wide range of angles, significantly increases the difficulty of fraud by requiring multiple comparisons, and prevents replay attacks by using random view sequences and flash control, making transactions secure.
Implementation Method 1
a transparent layer in which a plurality of light-disturbing elements referred to as disrupters 111, 112 et seq. are embedded
Data Source
AI summary
An authentication method involves comparing a 2D description of an authentication device, referred to as a subsequent description, with an original 2D description by choosing, from several previously established original 2D descriptions, a 2D description established from a point of view similar to the one used to establish the subsequent 2D description. Advantageously, the optical characteristics of the authentication device vary so little when it is viewed from neighboring points of view that the device can be recognized from most of the points of view, and the original 2D descriptions have been established from neighboring points of view, which form a substantially continuous domain. In an improved version, a three-dimensional description of the authentication device, referred to as a 3D description, is reconstructed from several original 2D descriptions, which makes it possible to predict the appearance thereof from a plurality of different points of view.