Dual-Range Radio Authentication for Secure Mobile Data Transfer
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Solution Overview
Problem
Existing home network establishment via radio communication faces challenges in secure and easy mutual authentication, particularly for mobile electronic devices, as they can be easily authenticated by malicious third parties, risking personal information and data interception.
Innovation Solution
A communication system that uses multiple radio communicating portions with different ranges to perform authentication based on user operation, registering authentication data for secure communication, and switching to longer-range communication for data transfer, ensuring secure and easy mutual authentication between devices.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If electromagnetic induction authentication is used for mobile electronic apparatus, then mutual authentication can be achieved, but the apparatus can be authenticated by malicious third parties through bags in public places
Solution Approach 1:
The communication system is divided into two distinct communication portions: a first radio communicating portion for authentication with short communicable distance, and a second radio communicating portion for data communication with long communicable distance. This segmentation ensures that authentication only occurs when devices are physically close, preventing third-party authentication through bags while enabling secure data communication at longer ranges.
2Reliability
If authentication processing is performed using radio communication, then secure communication can be established, but the range of authentication is limited compared to data communication range
Solution Approach 1:
The system uses two separate radio communicating portions with different communicable distances. The first portion is optimized for short-range authentication to ensure security, while the second portion handles long-range data communication. This allows the system to achieve both secure authentication with limited range and efficient data communication with extended range.
Solution Approach 2:
The patent transitions from a single-range communication system to a multi-range system by adding another dimension of communication capability. The first radio communicating portion operates at a shorter range for authentication, while the second radio communicating portion operates at a longer range for data transfer, effectively solving the range limitation problem.
3Reliability
If multiple radio communicating portions with different ranges are used, then secure authentication and long-range data communication can be achieved, but device complexity increases
Solution Approach 1:
Each radio communicating portion is designed with specific functionality: the first portion handles authentication and the second portion handles data communication. Both portions can be used for mutual authentication when needed, making the system versatile. This multi-functionality approach allows the system to achieve secure authentication and long-range communication without requiring completely separate systems.
Data Source
AI summary
A portable server has an antenna and radio communicating portion having a receivable distance of several m to several tens of m and an authentication antenna and authentication radio communicating portion having a receivable distance of several mm to several cm, which is extremely shorter than the receivable distance of the radio communicating portion. When an authentication button is operated by a user and when another apparatus is arranged within a range of the receivable distance of the authentication radio communicating portion, the authentication radio communicating portion performs authentication processing with the other apparatus through the authentication antenna and registers authentication data resulting from the authentication with a memory. The radio communicating portion connects to the authenticated other apparatus through an antenna based on the authentication data and performs data communication. The invention is applicable to a radio communication system including a mobile terminal.