Tamper-Resistant Module Secure Group Communication
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Solution Overview
Problem
Current information management systems face challenges in preventing fraudulent activities, such as unauthorized processing and group formation, due to the lack of secure communication and tamper-resistant modules, which can lead to improper management of digital rights and licenses.
Innovation Solution
An information management system with a tamper-resistant module in terminal apparatuses and secure communication channels ensures that processing affecting management information is executed securely, and completion notifications are transmitted reliably, allowing the server to confirm the execution of processing and manage terminal groups accurately.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If terminal apparatuses use simple notification mechanisms to inform the server of processing completion, then communication simplicity is improved, but system reliability deteriorates due to fraudulent notifications
Solution Approach 1:
A secure communication channel acts as an intermediary between the terminal apparatus and the information management server. This channel includes authentication functionality that verifies the identity of the terminal before accepting completion notifications, thereby preventing fraudulent notifications while maintaining communication simplicity.
Solution Approach 2:
The system implements a feedback mechanism where the server sends requests to terminal apparatuses and receives completion notifications through the secure communication channel. The channel's authentication capability provides feedback verification to ensure the notification originates from a legitimate terminal, resolving the reliability issue.
2Reliability
If the system implements secure communication channels with authentication, then system security is improved, but device complexity increases
Solution Approach 1:
The secure communication channel is designed as a standardized intermediary component with built-in authentication capabilities. By treating it as a self-contained module, the complexity is encapsulated within the channel itself rather than distributed across the entire system, making the overall system easier to manage despite the enhanced security features.
Data Source
AI summary
A group management server in a group information management system includes: a group member terminal list storage unit for storing a group member terminal list; and a secure communication unit for establishing a secure communication channel with a plurality of terminal apparatuses and communicating with each of the terminal apparatuses via the communication channel. Each terminal apparatus includes a tamper-resistant module. The tamper-resistant module includes: a group information storage unit for storing group information securely; a deletion unit for securely executing deletion, which is processing that affects the group member terminal list, of the group information stored in the group information storage unit; and a secure communication unit for establishing a secure communication channel with the secure communication unit and transmitting a complete deletion notification message via the communication channel.