Mobile Node Registration Single Security Association
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Solution Overview
Problem
The existing Mobile Internet Protocol (Mobile IPv6) binding mechanism in cellular networks is susceptible to security attacks and incurs significant overhead in terms of network bandwidth, processor performance, and memory due to the need for multiple security associations and key management across distinct IPSec modes for different signaling types.
Innovation Solution
A method and apparatus for registering a mobile node with a home agent using a single security association for a security tunnel, which supports multiple data paths, reducing the overhead by consolidating security associations and key management across various data paths.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple security associations are established for different signaling types in Mobile IPv6, then security coverage is improved, but device complexity and processing overhead increase
Solution Approach 1:
The patent merges multiple security associations into a single security association that protects all signaling types (Binding Update, Binding Acknowledgment, Return Routability, Prefix Solicitation, Prefix Advertisement) between mobile node and home agent. This consolidation reduces the number of security associations from multiple to one, thereby reducing device complexity and processing overhead while maintaining comprehensive security coverage.
Solution Approach 2:
The patent creates a universal security association that serves multiple functions simultaneously - protecting different signaling types with different security requirements. This single security association acts as a multi-functional security mechanism, eliminating the need for separate security associations for each signaling type while maintaining appropriate security protection for all communications.
2Reliability
If multiple security associations are maintained for different data paths, then security policy enforcement is improved, but memory usage and processing overhead increase
Solution Approach 1:
The patent combines multiple security associations that would otherwise be maintained separately in memory into a single unified security association. This merging reduces the quantity of security-related data structures stored in memory, thereby reducing memory usage while maintaining the ability to enforce security policies across all signaling types through the unified association.
3Manufacturing precision
If separate security associations are used for binding updates and return routability signaling, then security management precision is improved, but processing overhead increases
Solution Approach 1:
The patent merges security management for binding updates and return routability signaling into a single security association, reducing the processing overhead associated with managing multiple separate associations. The unified association maintains the precision needed for security management by applying appropriate security parameters to different signaling types without requiring separate association structures.
Data Source
AI summary
Method, apparatus and software for registering a mobile node with a home agent. Registration occurs when a home agent is determined and a security tunnel having a single security association is established between the home agent and the mobile node. The mobile node is then registered with the mobile node using the security tunnel.