Handwriting Identity Registration Complexity Control

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Solution Overview

Problem

Current identity verification systems using handwriting information face security risks due to excessively simple or overly complex handwriting, leading to potential impersonation attacks and inefficient verification processes.

Innovation Solution

A method and device that determine the degree of complexity of handwriting information during registration, ensuring it meets preset conditions for minimum and maximum complexity thresholds, and provide standard characters as hints to users to facilitate input of suitable complexity.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If handwriting information is excessively simple, then ease of operation is improved, but security reliability deteriorates due to easy imitation

Engineering Contradiction:

Improveease of handwriting inputVSAvoidsecurity against impersonation

Core Design Contradiction:

Ease of operationVSReliability

Solution Approach 1:

The patent changes the parameter of handwriting complexity from uncontrolled to controlled by introducing complexity evaluation metrics (number of strokes, inflection points, spatial distribution, gradient distribution) and setting threshold values to ensure handwriting meets minimum complexity requirements for security while remaining operable

Inventive Principle:

Principle #35Parameter changes

2Reliability

If handwriting information is overly complex, then security reliability is improved, but ease of operation deteriorates causing false non-matches and repeated verification attempts

Engineering Contradiction:

Improvesecurity against impersonationVSAvoidease of handwriting input

Core Design Contradiction:

ReliabilityVSEase of operation

Solution Approach 1:

The patent applies parameter changes by establishing upper threshold limits for handwriting complexity parameters (number of strokes, inflection points, spatial distribution, gradient distribution) to prevent excessive complexity that would cause false non-matches, thereby maintaining both security and usability

Inventive Principle:

Principle #35Parameter changes

3Ease of operation

If handwriting complexity is not controlled, then ease of operation is maintained, but system resource consumption increases due to repeated verification attempts

Engineering Contradiction:

Improveease of handwriting inputVSAvoidsystem verification efficiency

Core Design Contradiction:

Ease of operationVSProductivity

Solution Approach 1:

The patent applies preliminary action by evaluating the complexity of handwriting during the registration phase and determining whether it meets preset conditions before storing it as identity verification information, preventing future verification failures and reducing system resource waste from repeated attempts

Inventive Principle:

Principle #10Preliminary action

Data Source

PatentEP3189472B1Managing registration of user identity using handwriting

Publication Date: 2021.09.01 ADVANCED NEW TECHNOLOGIES CO LTD

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AI summary

Embodiments of the present application relate to a method, apparatus, and system for registering a user identity. The method includes receiving handwriting information associated with handwriting entered by a user, computing a degree of complexity of the first handwriting information, and in the event that the degree of complexity of the first handwriting information satisfies one or more preset conditions, associating the first handwriting information with identity registration information corresponding to the user.