Network Node Encryption for Secure QoS Data Transmission
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Solution Overview
Problem
Existing communication networks fail to securely transmit quality-of-service data, as unencrypted information can be exploited by unauthorized users, compromising the security of authenticated users and allowing misuse of network resources.
Innovation Solution
Implementing network node devices with a central memory for storing quality-of-service data, where only subsets are stored in local memories on terminal and line control units, with an encryption module separating encrypted and unencrypted areas to ensure secure transmission and processing of quality-of-service data.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If quality of service information is transmitted in unencrypted form, then transmission speed and processing efficiency are improved, but security is worsened as unauthorized persons can extract and misuse the information
Solution Approach 1:
The patent divides the network device into multiple processing units (first processing unit, second processing unit, third processing unit) that handle different aspects of quality of service data. The first unit processes unencrypted data for speed, while the second unit encrypts data for security, and the third unit manages key distribution. This segmentation allows simultaneous optimization of both transmission speed and security.
Solution Approach 2:
The patent introduces encryption keys as an intermediary element between unencrypted quality of service data and secure storage. The encryption key acts as a mediator that transforms readable data into encrypted form for secure storage in the second memory, while allowing fast access to unencrypted data in the first memory for processing. This intermediary mechanism resolves the contradiction between speed and security.
2Loss of information
If all quality-of-service-specific data are stored in central memory, then data completeness is improved, but access speed is worsened due to distance and bus constraints
Solution Approach 1:
The patent segments the storage system into central memory for complete data storage and distributed local memories in processing units for fast access to subsets of data. Each processing unit maintains a local copy of relevant quality of service data, eliminating the need for frequent accesses to central memory and thus improving access speed while maintaining data completeness.
Solution Approach 2:
The patent implements preliminary action by pre-loading relevant subsets of quality of service data into local memories of processing units before they are needed for processing. This anticipatory loading ensures that when processing units need to access quality of service data, the information is already available locally, eliminating access delays and improving processing speed.
3Speed
If local memories store complete quality-of-service-specific data, then access speed is improved, but storage capacity requirements are worsened
Solution Approach 1:
The patent applies local quality by having each processing unit store only the specific subset of quality of service data that is relevant to its function, rather than storing complete data sets. The first processing unit stores data relevant to network interface management, while the second processing unit stores data relevant to encryption operations. This localized storage approach improves access speed for each unit while minimizing overall storage capacity requirements.
Data Source
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AI summary
The invention relates to a communications network comprising network node devices for data and speech communication, which network comprises integrated central devices and, for security reasons, carries out part of the local-mode data processing with encrypted data and especially with encrypted service quality-relevant data. The inventive network node device is meant to be used together with other similar network node devices in an encrypted communications network.