Mobile Phone Unauthorized Use Prevention via RFID Authentication

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Solution Overview

Problem

Existing mobile phone systems fail to effectively prevent unauthorized use after a device is stolen or lost, as SIM cards can be compromised, allowing unauthorized access and usage, leading to potential financial losses and security breaches.

Innovation Solution

A mobile phone system incorporating a Radio Frequency Identification (RFID) component and a decoding module that requires matching identifying data to be decrypted before the phone can be used, ensuring only authorized users can access the device's functions by using a portable object like a ring with the RFID component, which sends identifying data that must match stored identification data for the phone to function.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a SIM card is used for mobile phone authentication, then user identification and encryption are enabled, but the phone can still be compromised through SIM card theft or loss allowing unauthorized use

Engineering Contradiction:
Improveauthentication securityVSAvoidunauthorized use
Core Design Contradiction:
ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The authentication system is segmented into two independent parts: the SIM card containing authentication credentials and the portable object containing identification data. Both components are required simultaneously for phone access, creating a multi-factor authentication system that prevents unauthorized use even if one component is compromised

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

A portable object (such as a ring with RFID component) is introduced as an intermediary carrier for identification data. This intermediary serves as an additional authentication layer that must be present and verified alongside the SIM card, creating a physical barrier against unauthorized access

Inventive Principle:
Principle #24Intermediary (Mediator)

2Adaptability or versatility

If code writing and reading technology is used in PHS mobile phones, then the phone can be reinstalled or code removed, but stolen or lost phones can be easily taken over by unauthorized users

Engineering Contradiction:
Improvecode flexibilityVSAvoidownership security
Core Design Contradiction:
Adaptability or versatilityVSReliability

Solution Approach 1:

Identification data is pre-loaded into a portable object before the phone is handed to the user. This preliminary action ensures that the authentication credentials are already in place and cannot be easily removed or transferred, preventing code writing attacks on stolen devices

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

Instead of storing identification data directly in the phone's writable memory, a copy is made on a separate portable object. This copying strategy protects the original authentication credentials from being altered or removed through code writing operations on the phone itself

Inventive Principle:
Principle #26Copying

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

Prevents unauthorized use by ensuring the phone can only be activated and used with the correct identifying data, reducing the risk of theft-related financial losses and security breaches, while also providing a mechanism to locate the phone through periodic verification and beeping if not in use.

Implementation Method 1

a decoding module (3) and an identification data (20), wherein after the mobile phone (2) is turned on, the decoding module (3) sends out a radio signal

Methodology Applied
Scientific EffectRadio frequency identification: Electromagnetic Induction

Data Source

PatentUS7623845B2System for preventing unauthorized use of a mobile phone
Publication Date: 2009.11.24 INVECTEC APPLIANCES CORPORATION
  • US7623845B2 patent drawing
  • US7623845B2 patent drawing
  • US7623845B2 patent drawing

AI summary

The present invention is to provide a system for preventing unauthorized use of a mobile phone, which comprises a portable object having a radio frequency identification component installed therein and a mobile phone installed with a decoding module and an identification data, such that after the mobile phone is turned on, the radio frequency identification component and the mobile phone carry out the steps of sending out a radio signal from the decoding module; issuing an identifying data by the radio frequency identification component when being located in an effective range for receiving the radio signal; decrypting the identifying data by the decoding module after receiving the identifying data; and enabling the mobile phone to be used normally when the decrypted identifying data matches with the identification data.