Remote Attestation Service for Centralized Trustworthiness Measurement
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Solution Overview
Problem
Current trustworthiness measurement methods are limited to the NF layer and management plane, lacking a unified service for various network elements, especially terminals, and involve high complexity due to one-to-one attester-verifier interactions, leading to excessive resource consumption.
Innovation Solution
A centralized trustworthiness measurement service is provided by a Remote Attestation Service (RAS) network element that obtains and sends attestation results to other network elements, reducing the need for individual attester-verifier interactions and resource consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If centralized trustworthiness measurement service is implemented, then resource consumption and complexity are reduced, but system architecture complexity increases
Solution Approach 1:
The patent introduces a Remote Attestation Service (RAS) network element as an intermediary between attesters and verifiers. The RAS receives attestation requests from verifiers, interacts with attesters to obtain measurement information, and returns attestation results to verifiers. This mediator architecture consolidates the measurement workflow into a centralized service, reducing the need for direct one-to-one interactions between multiple attesters and verifiers, thereby lowering overall system complexity and resource consumption despite adding a coordination layer.
2Measurement precision
If one-to-one attester-verifier interaction is used, then measurement accuracy is maintained, but resource consumption and complexity increase
Solution Approach 1:
The patent merges multiple individual attester-verifier interaction instances into a single centralized Remote Attestation Service. Instead of having each verifier directly interact with each attester in one-to-one pairs, the RAS consolidates these interactions into unified measurement workflows. The RAS maintains the integrity and accuracy of individual attestation processes while managing them collectively, thereby preserving measurement precision while dramatically reducing interaction complexity from O(n²) to O(n).
Data Source
AI summary
Embodiments of this application provide a trustworthiness measurement method and apparatus, and a system. An example method includes: A remote attestation service RAS network element obtains an attestation result of a first remote attestation agency RAA network element. The RAS network element receives a first request from a second RAA network element, where the first request is used to request the attestation result of the first RAA network element. The RAS network element sends the attestation result of the first RAA network element to the second RAA network element.