Communication Terminal Device Authentication Verification

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Solution Overview

Problem

Existing communication systems fail to adequately verify the authenticity and validity of devices involved in transactions, leading to potential unauthorized use or leakage of communication information.

Innovation Solution

A communication terminal and method that transmit authentication information to a verification target device and verify its validity based on responses and associated information from an information processing device, ensuring authorized transactions by preventing unauthorized device usage.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If authentication is performed only between server and terminal, then mutual authentication is achieved, but device validity cannot be verified

Engineering Contradiction:

Improveauthentication securityVSAvoiddevice validity verification

Core Design Contradiction:

ReliabilityVSLoss of information

Solution Approach 1:

The authentication process is divided into multiple independent stages: individual authentication of user by terminal, mutual authentication between server and terminal, and individual authentication of user by server. Additionally, device validity verification is segmented as a separate check using first information and second information from the information processing device, ensuring comprehensive security without conflating different verification purposes.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The terminal acquires first information and second information from the information processing device before establishing the communication channel with the verification target device. This preliminary acquisition of verification data enables the terminal to independently verify device validity prior to allowing any information exchange, preventing unauthorized devices from participating in the communication.

Inventive Principle:

Principle #10Preliminary action

2Productivity

If communication channel is established without device verification, then communication efficiency is maintained, but unauthorized information exchange occurs

Engineering Contradiction:

Improvecommunication efficiencyVSAvoidunauthorized information leakage

Core Design Contradiction:

ProductivityVSObject-affected harmful factors

Solution Approach 1:

The terminal performs device validity verification using pre-acquired first information and second information before establishing the communication channel. This preliminary verification ensures that only authorized devices can communicate, preventing information leakage while maintaining efficiency by avoiding repeated authentication during the communication process.

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The verification target device responds to authentication information transmitted by the terminal. The terminal verifies this response against the previously acquired first information and second information to determine device validity. This feedback mechanism enables dynamic verification while maintaining communication efficiency through a single verification step.

Inventive Principle:

Principle #23Feedback

3Reliability

If device validity verification is implemented, then unauthorized device usage is prevented, but communication complexity increases

Engineering Contradiction:

Improvedevice authenticationVSAvoidverification process

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The information processing device acts as an intermediary that provides first information and second information to the terminal for verification purposes. This intermediary role simplifies the terminal's verification process by outsourcing the generation and management of verification data, reducing the terminal's computational burden while maintaining verification reliability.

Inventive Principle:

Principle #24Intermediary (Mediator)

Solution Approach 2:

The terminal acquires verification information (first information and second information) from the information processing device in advance, before the actual communication with the verification target device. This preliminary acquisition simplifies the verification process during communication by having all necessary verification data readily available, eliminating the need for complex real-time verification computations.

Inventive Principle:

Principle #10Preliminary action

Data Source

PatentUS10447687B2Communication terminal, communication method, and communication system

Publication Date: 2019.10.15 FELICA NETWORKS INC

AI summary

There is provided a communication terminal including a transmission controller configured to allow transmission of, to a verification target device, authentication information for authenticating the verification target device based on first information acquired from an information processing device, and a verification unit configured to verify validity of the verification target device based on a response to the authentication information and second information acquired from the information processing device, the second information being associated with the first information.