Key Information Generation System for Shared Devices
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Solution Overview
Problem
Existing key information generation systems for shared apparatuses, such as lodging facilities, face security issues due to the transmission of highly confidential information over networks, which can lead to potential security breaches.
Innovation Solution
A key information generation system that assigns key information to a portable terminal based on usage information, where the key information generation code is obtained from a data center using individual and usage information associated during manufacturing and market registration, ensuring that only usage information is transmitted over the network during use, thereby maintaining security.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If highly confidential information is transmitted through the network to generate key information, then key information can be generated and assigned to portable terminals, but security issues arise due to potential data breaches
Solution Approach 1:
The patent extracts and separates confidential information (individual information and key information generation code) from the network transmission process. Only non-confidential usage information is transmitted over the network, while confidential data is obtained locally from the portable terminal. This eliminates the security risk of transmitting highly confidential information while maintaining the key information generation functionality.
Solution Approach 2:
The patent segments the information into three distinct categories: individual information (stored locally in authentication device), key information generation code (stored locally in authentication device), and usage information (transmitted over network). This segmentation allows the system to transmit only the necessary usage information while keeping sensitive data local, resolving the contradiction between operational ease and security.
2Reliability
If individual information and key information generation code are transmitted through the network, then complete key information can be generated, but the registration process becomes more complex and security is compromised
Solution Approach 1:
The patent applies preliminary action by pre-storing the individual information and key information generation code in the authentication device during manufacturing or initial setup. This eliminates the need to transmit these confidential information during the key generation process, simplifying the registration process while maintaining reliability through pre-established secure storage.
3Adaptability or versatility
If confidential information is stored and transmitted over the network, then key information can be generated for multiple apparatuses, but security vulnerabilities increase
Solution Approach 1:
The patent uses usage information as an intermediary that enables multi-apparatus support without transmitting confidential data. The usage information acts as a key that links the portable terminal to the specific apparatus, allowing the system to support multiple apparatuses while maintaining security by never transmitting the actual confidential information over the network.
Data Source
AI summary
This key information generation system generates key information necessary when using a shared device and imparts this key information to a mobile terminal. Authentication is performed between a mobile terminal which has imported key information, and an authentication device provided to the device, and if said authentication is successful, the mobile terminal enables operation of the device via the authentication device. The key information generation system includes: an information management unit which manages, by associating with one another, individual information for the authentication device, a key information generating code, and usage information pertaining to the use of the authentication device; and a key information generation unit which specifies a key information generation code from the individual information and usage information managed by being associated with one another by the information management unit, and generates key information on the basis of the key information generation code.