IP Mobility Security Mode Adaptation for Dynamic Network Switching
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Solution Overview
Problem
Existing IP mobility systems fail to dynamically adapt security modes for mobile nodes when switching between secure and insecure access networks, leading to potential security vulnerabilities and inefficient resource usage.
Innovation Solution
A method and apparatus that establish an IP mobility binding with a security mode indication for mobile nodes, detect triggers to adapt the security mode, and dynamically adjust the security mode in response to changing network conditions, even if the mobile node's IP address remains unchanged, by using a security mode manager to enforce appropriate security protocols based on detected security requirements of the new access network.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the mobile node uses a static security mode configuration, then the system complexity is reduced and ease of operation is improved, but security reliability deteriorates when switching between secure and insecure access networks
Solution Approach 1:
The patent implements dynamic security mode adaptation by enabling the mobile node to automatically detect security characteristics of access networks and adjust security modes accordingly. The system transitions from static configuration to dynamic adaptation, where security parameters are modified in real-time based on network conditions, resolving the contradiction between reliability and complexity through automated dynamic management.
Solution Approach 2:
The mobile node performs self-service by autonomously detecting security characteristics of access networks and adapting its security mode without external intervention. The device monitors its own security state and automatically adjusts encryption and authentication parameters, eliminating the need for complex manual configuration while maintaining high security reliability.
2Reliability
If the mobile node dynamically adapts security modes when switching access networks, then security reliability is improved, but device complexity and processing overhead increase
Solution Approach 1:
The patent implements feedback mechanisms where the mobile node continuously monitors security characteristics of access networks and uses this information to adjust security modes. The system establishes a closed-loop control where security decisions are based on real-time feedback from network condition detection, automatically adapting encryption and authentication parameters without manual intervention.
Solution Approach 2:
The patent introduces security mode indication parameters as intermediaries that carry security requirement information between the mobile node and access networks. These parameters act as mediators that enable automatic security adaptation by conveying network security characteristics to the mobile node, which then adjusts its security mode accordingly without complex direct control mechanisms.
3Reliability
If IP mobility binding updates are performed frequently to maintain security, then security reliability is improved, but loss of time and productivity deteriorate
Solution Approach 1:
The patent applies partial action by updating security modes selectively rather than performing full IP mobility binding updates for every security parameter change. The system updates only the necessary security mode indication parameters when security characteristics change, avoiding unnecessary complete binding updates and reducing time loss while maintaining security reliability.
4Reliability
If encryption is always enabled for mobile node communications, then security reliability is improved, but use of energy and productivity worsen due to increased processing overhead
Solution Approach 1:
The patent implements dynamic encryption management where the mobile node adjusts encryption enabled/disabled status based on detected security characteristics of access networks. When transitioning from secure to insecure networks, the system dynamically modifies security modes to maintain protection while reducing unnecessary encryption overhead, thereby optimizing energy consumption while preserving security reliability.
Data Source
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AI summary
In a non-limiting and exemplary embodiment, a method is provided for adapting security level between a mobile node (10) and a mobility anchor (30). An IP mobility binding with an indication of a security mode is established for a mobile node (10) connected to an IP sub-network (40) and identified in the IP sub-network (40) by a care of address. A trigger to adapt the security mode for the mobile node (10) connected to the IP sub-network (40) is detected. The security mode for the mobile node (10) connected to the IP sub-network (40) and identified by the care of address is adapted in response to the trigger.