Sound-Based Authentication for Secure Electronic Material Distribution
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Solution Overview
Problem
Existing information processing systems fail to securely distribute and manage electronic materials within a predetermined space, as they can be leaked outside the intended area due to the lack of effective authentication and deletion mechanisms.
Innovation Solution
An information processing system that uses sound frequencies for authentication and deletion control, where a host apparatus outputs a predetermined sound, and client apparatuses respond to authenticate and receive data, with the system ensuring that material is only accessible within a specific space by converting passwords into sound and periodically checking for client apparatus presence.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If material is distributed to portable terminals using terminal IDs, then participants can read the material, but the material may be transferred outside the meeting room and leaked
Solution Approach 1:
The system performs preliminary authentication by detecting portable terminals within the meeting room before distributing material. This ensures that only authorized participants present in the meeting room receive the material, preventing unauthorized distribution and potential leakage.
Solution Approach 2:
The system continuously monitors the meeting room for portable terminals and provides feedback on participant presence. This feedback mechanism allows the system to control material access dynamically, ensuring that material can only be accessed when authorized terminals are detected in the meeting room.
2Reliability
If a server stores and manages participant terminal IDs, then material distribution can be controlled, but the system requires complex device and server infrastructure
Solution Approach 1:
The system uses the portable terminals themselves to perform authentication and material distribution functions. The terminals autonomously participate in the authentication process by responding to detection signals, eliminating the need for a centralized server to manage terminal IDs and reducing overall system complexity.
Solution Approach 2:
The portable terminals serve multiple functions: they act as both the detection target and the authentication device. The same terminal that is detected in the meeting room also performs the authentication process, reducing the need for separate authentication infrastructure and simplifying the system architecture.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This approach ensures that electronic materials are securely distributed and deleted within a predetermined space, preventing unauthorized access and leakage by using sound-based authentication and periodic checks for client apparatus presence.
Implementation Method 1
a first information processing apparatus which outputs a sound having a predetermined frequency (frequencies)
Implementation Method 2
a second information processing apparatus which collects the sound that is output by the first information processing apparatus
Data Source
AI summary
An information processing system includes a first information processing apparatus that outputs a sound of a predetermined frequency; and a second information processing apparatus that collects the sound that is output from the first information processing apparatus, and outputs a response to the sound of the predetermined frequency to the first information processing apparatus. The first information processing apparatus transmits predetermined data to the second information processing apparatus that has output the response to the sound of the predetermined frequency.


