Switching Node Activation Database for Legal Eavesdropping
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Solution Overview
Problem
In packet- and/or cell-switching communication networks, especially IP-based networks, eavesdropping measures face challenges in activating interception outside country-specific legal boundaries due to the dynamic routing of voice data and lack of country-specific identifiers for 'content handler' switching nodes, risking unauthorized data transmission.
Innovation Solution
Assigning activation databases to switching nodes with identifiers for authorized eavesdropping, ensuring that only nodes within legal guidelines are activated by matching identifiers, and using secure, encrypted activation information to verify and enable further interception measures.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If eavesdropping measures are activated in content handler switching nodes in packet-switching networks, then interception capability is improved, but legal compliance and security control deteriorate due to dynamic routing and lack of country-specific identifiers
Solution Approach 1:
The system performs preliminary actions by pre-configuring activation databases in content handler switching nodes with country-specific identifiers and authorized switching node identifiers before interception is needed. This allows the nodes to autonomously verify legal compliance and authorization status in advance, ensuring that eavesdropping measures are only activated in legally permissible jurisdictions and authorized nodes, thus resolving the contradiction between interception capability and legal compliance
Solution Approach 2:
The patent introduces an intermediary mechanism in the form of activation databases that mediate between the desire for broad interception capability and the need for legal compliance. These databases act as intermediaries by storing and verifying country-specific identifiers and authorization information, enabling content handler switching nodes to autonomously determine whether activation of eavesdropping measures is legally permitted in their jurisdiction, thus maintaining both interception capability and legal compliance
2Adaptability or versatility
If eavesdropping measures are activated in switching nodes outside country-specific legal boundaries, then global interception coverage is improved, but unauthorized data transmission and security risks increase
Solution Approach 1:
The patent applies local quality by implementing country-specific activation databases in content handler switching nodes that store and verify local legal and authorization information. Each switching node autonomously determines whether activation of eavesdropping measures is permitted in its specific jurisdiction by checking against its local activation database. This ensures that while the system can operate globally, each local instance only activates interception measures when compliant with local laws and authorization, thus expanding global coverage while preventing unauthorized data transmission in any specific jurisdiction
3Productivity
If dynamic routing is used for voice data in IP-based networks, then network flexibility and efficiency are improved, but the ability to locate and activate eavesdropping in specific nodes deteriorates
Solution Approach 1:
The patent implements feedback mechanisms where content handler switching nodes continuously monitor and detect their own network addresses and country-specific identifiers, and use this information to query their activation databases. The nodes receive feedback about their current routing status and legal compliance status, and autonomously adjust their behavior by activating or deactivating eavesdropping measures based on this feedback. This allows dynamic routing to continue for network efficiency while maintaining the ability to identify and activate eavesdropping in compliant nodes through continuous monitoring and feedback loops
Data Source
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AI summary
In a packet-switching and/or cell-switching communication network which comprises a plurality of switching nodes and in which the individual switching nodes in the communication network are each allocated a unique identification, eavesdropping measures are provided in order to eavesdrop on at least one data link that has been formed between two communication subscribers, in which case one of the two communication subscribers is identified by means of at least one eavesdropping measure as a communication subscriber to be eavesdropped on. The switching nodes which are intended for activation of eavesdropping measures are each allocated at least one activation database which has the identifications of the switching nodes which are enabled for activation of further eavesdropping measures. In this case, a further eavesdropping measure is activated in the switching node to be eavesdropped on only if the identification of the switching node to be eavesdropped on matches at least one identification which is contained in the activation database.