Fingerprint Authentication for Wireless Network Access Control

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Solution Overview

Problem

Existing wireless network access control methods are insecure, inconvenient, and inefficient, relying on account numbers and passwords, which can be compromised, and previous fingerprint authentication methods fail to effectively manage wireless network resources and ensure security.

Innovation Solution

A fingerprint authentication method that converts fingerprint data into matrix data compliant with wireless network authentication ciphers, stores it in a management information base database, and uses a threshold for pattern identification to authenticate users, thereby controlling wireless network access and enhancing security and reliability.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If account numbers and passwords are used for wireless network access control, then users can authenticate themselves, but the security is compromised and the system is vulnerable to misappropriation

Engineering Contradiction:

Improveauthentication securityVSAvoidrisk of account misappropriation

Core Design Contradiction:

ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The patent replaces the mechanical authentication system (account numbers and passwords) with a biometric authentication system using fingerprint recognition. The fingerprint sensor captures the user's fingerprint, which is then processed through matrix operations and compared against stored templates to verify identity, eliminating the vulnerabilities of traditional credential-based authentication

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The patent transforms the authentication parameter from textual credentials (account numbers and passwords) to biometric data (fingerprint patterns). The fingerprint image is converted into matrix data through specific mathematical operations, creating a new parameter space for authentication that is inherently more secure and difficult to compromise

Inventive Principle:

Principle #35Parameter changes

2Reliability

If continuous authentication messages are transmitted between initiator and responder, then authentication can be maintained, but system performance deteriorates and network bandwidth is consumed

Engineering Contradiction:

Improveauthentication continuityVSAvoidnetwork connection speed

Core Design Contradiction:

ReliabilityVSProductivity

Solution Approach 1:

The patent performs preliminary authentication actions by capturing and processing the fingerprint at the initiator side before transmission. The fingerprint image is converted to matrix data and compared against stored templates locally, so that when authentication messages are transmitted to the wireless network, the authentication process is already substantially complete, reducing the need for continuous back-and-forth communication

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The patent extracts the computationally intensive fingerprint processing and pattern recognition operations from the continuous authentication message exchange and performs them locally at the initiator side. This separates the heavy processing burden from the network communication, allowing authentication to be maintained without continuously consuming network bandwidth

Inventive Principle:

Principle #2Taking out (Extraction)

3Adaptability or versatility

If multiple users continuously request network connection, then all users can access the network, but the access point becomes paralyzed and connection quality for other users deteriorates

Engineering Contradiction:

Improvenetwork access availabilityVSAvoidnetwork connection quality

Core Design Contradiction:

Adaptability or versatilityVSProductivity

Solution Approach 1:

The patent enables users to perform preliminary authentication actions (fingerprint capture, matrix conversion, and template comparison) before attempting to connect to the wireless network. This pre-authentication process validates user credentials locally, so that when users request network connection, the access point only needs to verify pre-validated authentication tokens rather than processing complete authentication sequences for each connection request

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The patent implements periodic authentication where users authenticate at predetermined intervals or upon specific triggers (such as attempting to access the network). This periodic authentication approach reduces the frequency of authentication messages compared to continuous authentication, allowing multiple users to access the network without overwhelming the access point with simultaneous authentication requests

Inventive Principle:

Principle #19Periodic action

Data Source

PatentUS7818791B2Fingerprint authentication method for accessing wireless network systems

Publication Date: 2010.10.19 MITAC INT CORP

AI summary

This invention provides a fingerprint authentication mechanism for accessing the wireless network system that is applicable to a wireless network communications apparatus, the mechanism including the steps of inputting data of users' fingerprints and converting the same into matrix data compliant with wireless network authentication bit ciphers; setting thresholds for pattern identification with respect to the matrix data as an authentication basis for determining if the user has access rights to the network system upon receipt of a request signal for network connection sent from a user end; and analyzing if the captured fingerprint of the user matches with the preset authentication data to determine if the wireless network communications apparatus is to be started for network connection, thereby increasing the quality, usability and safety of the wireless network connection to achieve an easier scheme of information security management.