Secure P2P Document Transfer via Centralized Security State Verification
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Solution Overview
Problem
In peer-to-peer data transmission, there is a risk of information leakage due to differing information security states between transmission source and destination apparatuses, even when encryption is used, as the security states of these apparatuses may not be sufficient.
Innovation Solution
An information processing system that includes a management apparatus to verify the information security states of both the transmission source and destination apparatuses before allowing the transmission of an encrypted document, ensuring that both meet certain security requirements before granting permission for the transfer.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If peer-to-peer transmission is used to reduce data leakage risk, then transmission security is improved, but information security state verification becomes necessary to prevent transmission from insecure apparatuses
Solution Approach 1:
A management apparatus is introduced as an intermediary between the transmission source apparatus and transmission destination apparatus. The management apparatus receives security state information from both apparatuses, verifies whether they meet predetermined security requirements, and controls permission to transmit. This mediator approach resolves the contradiction by adding a centralized verification mechanism that enables secure peer-to-peer transmission without requiring complex distributed verification protocols between the communicating apparatuses.
2Reliability
If encryption is used in transmission, then data confidentiality is improved, but transmission can still occur from apparatuses with insufficient security states
Solution Approach 1:
The management apparatus performs preliminary verification of information security states before allowing transmission to occur. Both the transmission source apparatus and transmission destination apparatus must notify the management apparatus of their security states in advance, and the management apparatus verifies whether they meet predetermined security requirements before granting transmission permission. This preliminary action prevents transmission from or to apparatuses with insufficient security states, complementing encryption to provide end-to-end security.
3Object-affected harmful factors
If security state verification is implemented, then transmission from insecure apparatuses is prevented, but transmission permission control complexity increases
Solution Approach 1:
The management apparatus serves as a centralized intermediary that handles all security verification and permission control operations. Instead of implementing complex distributed permission control logic in each transmitting apparatus, the management apparatus receives security state information, performs verification against predetermined requirements, and sends back permission decisions. This centralization simplifies the control logic in individual apparatuses while maintaining comprehensive security verification.
Data Source
AI summary
An information processing system includes a first, second and management apparatus. The first apparatus stores an encrypted document, notifies the management apparatus of a first state of the first apparatus regarding information security requirements, sends information for specifying the first apparatus as a transmission source and information for specifying the second apparatus as a transmission destination to the management apparatus, requests transmission permission to the management apparatus, and transmits the encrypted document to the second apparatus when transmission permission is granted. The second apparatus notifies the management apparatus of a second state of the second apparatus regarding the information security requirements, and receives the encrypted document from the first apparatus. The management apparatus issues transmission permission for transmission of the encrypted document from the first to the second apparatus when both of the first and second states satisfy the information security requirements in response to the request for transmission permission.