Trust Level Assessment Profiles for Heterogeneous Network Interoperability
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Solution Overview
Problem
The challenge of ensuring network security and trustworthiness in heterogeneous networks, particularly in future networks like 6G, is exacerbated by the difficulty in unifying trust level assessment models across different scenarios, stakeholders, and domains, leading to interoperability issues.
Innovation Solution
A trust assessment method and system that utilizes a trust level assessor (TLA) to evaluate network devices based on customizable TLA profiles, incorporating claims such as software integrity and cryptographic algorithms, and generates certificates to ensure authenticity and tamper resistance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a unified trust classification model is used across different network scenarios and stakeholders, then network security management is simplified, but it cannot meet the diverse interests and requirements of different countries, regions, operators, and device vendors
Solution Approach 1:
The patent segments the trust assessment model into multiple dimensions including trust level, trust object, trustor, and trustee. Each dimension can be independently configured to meet different network scenarios, operators, and stakeholders while maintaining an overall unified framework. This allows the system to be divided into manageable parts that can be customized without compromising the entire system.
Solution Approach 2:
The trust assessment model is designed to be dynamic and configurable rather than static. Different trust levels and assessment criteria can be adjusted based on specific network scenarios, making the model adaptable to changing requirements of different countries, regions, operators, and device vendors while maintaining a unified underlying structure.
2Adaptability or versatility
If customized non-standard trust assessment models are used for specific scenarios, then specific trust assessment requirements are met, but cross-domain and cross-scenario interoperation becomes difficult
Solution Approach 1:
The patent creates a universal trust assessment framework that can serve multiple functions and scenarios. The standardized trust level definitions and assessment dimensions enable the same framework to be applied across different domains and scenarios while maintaining interoperability. The model is designed to be multi-functional, accommodating various trust assessment needs without requiring separate customized models for each scenario.
3Measurement precision
If multiple trust level criteria are verified for different network devices, then trust assessment accuracy is improved, but the verification process complexity increases
Solution Approach 1:
The verification process is segmented into distinct trust levels with specific criteria for each level. This segmentation allows the system to verify only the necessary criteria for the required trust level, rather than all possible criteria, thereby maintaining accuracy while reducing unnecessary complexity in the verification process.
Data Source
AI summary
The method includes: A trust level assessor TLA performs trust assessment on a trustee based on a first trust level assessment TLA profile and evidence submitted by the trustee, to obtain a trust level of the trustee. The evidence includes one or more claims, and the one or more claims are used to describe related information of the trustee. The first TLA profile includes a plurality of trust levels and an assessment model corresponding to each trust level. The assessment model corresponding to each trust level includes a verification result of one or more claims required by the trust level. The trust assessment system and method provided in this disclosure can be used for trust assessment of a network device in different network scenarios, to resolve a problem that trust level assessment models in different scenarios in a heterogeneous network cannot be unified.