Trust-Indexed Service Subscription in Wireless Networks
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Solution Overview
Problem
Existing wireless networks lack effective mechanisms for user-aware, trustworthy subscription-based service interactions, particularly in managing trust indices to authenticate and authorize service requests.
Innovation Solution
A Function Entity Service Producer (FESP) hosts service functions and authenticates subscription requests based on a trust index received from a Trust Management Function (TMF), sending notifications only when the trust index exceeds a threshold, and updates the trust index upon meeting certain conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If trust index authentication is implemented for subscription requests, then security and reliability of service interactions are improved, but device complexity and authentication overhead increase
Solution Approach 1:
A trust management function is introduced as an intermediary component that handles trust index calculations and authentication decisions. This mediator separates the authentication logic from the service provider functions, reducing the complexity burden on individual service nodes while maintaining security. The trust management function centrally manages trust indices and coordinates authentication across the network.
Solution Approach 2:
Trust indices are calculated and updated in advance based on historical service interactions and user behavior patterns before actual service requests occur. This preliminary authentication preparation allows the system to make rapid authentication decisions during service interactions without performing complex real-time analysis, thus reducing operational complexity while maintaining high security standards.
2Measurement precision
If continuous trust index updates are performed, then user trust assessment accuracy is improved, but processing time and system latency increase
Solution Approach 1:
Instead of continuous real-time updates, the system implements periodic trust index calculations triggered by specific events such as successful service completions, user complaints, or scheduled intervals. This event-driven periodic approach maintains accurate trust assessments while significantly reducing processing overhead and latency compared to continuous monitoring and calculation.
Solution Approach 2:
The system establishes feedback loops where service interaction outcomes are fed back into the trust index calculation mechanism. Successful interactions reinforce positive trust scores, while failures or policy violations reduce trust indices. This feedback mechanism enables accurate trust assessment through accumulated historical data rather than continuous real-time computation, balancing precision with processing efficiency.
Data Source
AI summary
A function entity service producer (FESP) hosts a service function and receives a subscription request message from a function entity service consumer (FESC) including an indication of requested services and an indication of a condition that the service function is to apply when determining whether to send a service notification pursuant to the subscription. The FESP receives the FESC's a trust index from a trust management function (TMF). The trust index is at least one of a trust index of the FESC or of a user of the FESC The FESP determines to authenticate the subscription request if the trust index is greater than a threshold. The FESP receives an updated trust index of the FESC from the TMF when the condition is met and sends the service notification to the FESC when the updated trust index of the FESC is greater than the threshold.