Information Sharing System Using Terminal-Specific Encryption

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Solution Overview

Problem

Existing information sharing systems risk leaking private user information when sharing user data between devices, as historical usage data can be inadvertently exposed to unintended parties.

Innovation Solution

An information sharing system that acquires specific information from user terminals, encrypts user data based on this information, and shares it only with authorized devices, ensuring secure and controlled data exchange by correlating user terminals and prioritizing data sharing based on intended access.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If user information is shared without limitation, then information sharing coverage is improved, but security and privacy protection deteriorate

Engineering Contradiction:

Improveinformation sharing coverageVSAvoidprivacy leakage risk

Core Design Contradiction:

Adaptability or versatilityVSObject-affected harmful factors

Solution Approach 1:

The system performs preliminary actions by acquiring specific information from user terminals before sharing user information, encrypts the data based on this specific information, and establishes authorization criteria in advance. This prevents privacy leakage by ensuring that only authorized devices can access the information, while still allowing broad sharing coverage when authorization is properly granted.

Inventive Principle:

Principle #10Preliminary action

2Object-affected harmful factors

If specific information verification is implemented, then security and privacy protection are improved, but system complexity increases

Engineering Contradiction:

Improveprivacy leakage riskVSAvoidsystem structure complexity

Core Design Contradiction:

Object-affected harmful factorsVSDevice complexity

Solution Approach 1:

The system segments the information sharing process into distinct functional modules: a specific information acquisition unit that collects device identifiers, a user information acquisition unit that gathers data to be shared, an information management unit that encrypts and manages the information, and a sharing unit that controls distribution. This modular segmentation reduces system complexity by making each component's function clear and manageable while maintaining comprehensive security verification.

Inventive Principle:

Principle #1Segmentation

Data Source

PatentUS11297491B2Information sharing system and information sharing method

Publication Date: 2022.04.05 HONDA MOTOR CO LTD

AI summary

Appropriately sharing user information. An information sharing system includes: a specific information acquisition unit that acquires specific information of each terminal from a plurality of user terminals which are carried by users; a user information acquisition unit that acquires user information from the plurality of user terminals; an information management unit that encrypts the user information that is acquired by the user information acquisition unit on the basis of the specific information that is acquired by the specific information acquisition unit; a state acquisition unit that acquires the specific information of a user terminal that accesses a network including a sharing device from the sharing device that is a terminal other than the user terminals; and a sharing unit that shares the user information by decoding the user information that is encrypted by the information management unit with the specific information that is acquired by the state acquisition unit.