Selective Encryption for Transmission Management
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Solution Overview
Problem
Existing teleconference systems face performance issues due to high hardware resource consumption from encryption and decryption processes, leading to reduced real-time performance and video or audio quality problems.
Innovation Solution
A transmission management system that selectively determines the need for encryption based on relay device configuration, reducing unnecessary encryption by using a database to associate terminal and relay device information with encryption necessity, and only encrypting data when necessary, particularly for external network transmissions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If encryption and decryption processes are applied to all transmitted data, then data security is improved, but hardware resource consumption increases
Solution Approach 1:
The patent applies encryption selectively based on the relay device's location and network segment. Data transmitted through relay devices in the same intranet segment is not encrypted, while data crossing network boundaries is encrypted. This local differentiation resolves the contradiction by applying security measures only where genuinely needed, reducing overall hardware resource consumption while maintaining adequate security.
Solution Approach 2:
Instead of applying encryption to all data transmissions (excessive action), the patent implements partial encryption based on specific conditions such as relay device location and network segment boundaries. This partial application of encryption maintains security for critical transmissions while avoiding unnecessary encryption overhead for intranet- confined data, thus reducing hardware resource consumption.
2Reliability
If encryption and decryption processes are applied to all transmitted data, then data security is improved, but real-time performance deteriorates
Solution Approach 1:
The patent differentiates encryption requirements based on the local network context and relay device position. By identifying that certain relay devices operate within the same secure intranet environment, the system eliminates encryption for these local transmissions, thereby maintaining real-time performance while preserving security for external communications.
Solution Approach 2:
The patent implements partial encryption rather than universal encryption. By applying encryption only to data transmissions that cross network boundaries or involve external relay devices, the system maintains security for critical paths while preserving real-time performance for internal communications, thus resolving the contradiction between security and performance.
3Reliability
If encryption and decryption processes are applied to all transmitted data, then data security is improved, but video loss or audio jumping occurs
Solution Approach 1:
The patent applies encryption selectively based on the relay device's network location. For relay devices within the same intranet segment as the terminal, encryption is omitted, ensuring smooth video and audio transmission without processing delays. For external relay devices, encryption is applied to maintain security. This local differentiation prevents video loss and audio jumping caused by excessive encryption processing.
Solution Approach 2:
The patent implements partial encryption to avoid the excessive processing that causes video and audio quality degradation. By applying encryption only where security is genuinely required (external transmissions) and omitting it for internal intranet communications, the system maintains high video and audio quality while preserving necessary security measures.
Data Source
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AI summary
A transmission management apparatus includes a receiving unit that receives, from a first transmission terminal 10, a communication request for a communication with a second transmission terminal 10; a fists storage unit that stores therein terminal identification information for identifying the transmission terminals 10 and relay device identification information for identifying a relay device 30 that relays data to be transmitted and received by the first transmission terminal 10, in an associated manner; a relay device selecting unit that selects the relay device 30 associated with the terminal identification information of the first transmission terminal 10 in the first storage unit; a second storage unit that stores therein the relay device identification information and encryption necessity information in an associated manner; and an encryption necessity determining unit that determines whether encryption is needed based on the encryption necessity information associated, in the second storage unit, with the relay device 30 selected by the relay device selecting unit.