Intermediate Attestation Verification Across Complex Network Topologies
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Solution Overview
Problem
Existing attestation methods are inflexible and may not be applicable in complex network topologies or security domains where central verifiers lack access to all reference values or cannot process verification due to protocol incompatibilities, necessitating a more adaptable and secure verification process.
Innovation Solution
An intermediate verifier is introduced to handle verification tasks, forwarding only the verification result and ensuring secure communication, even when reference values are not accessible or protocols are incompatible, thus supporting a hierarchical and flexible attestation architecture.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a central verifier is used for attestation verification, then the verification process is simplified, but the system cannot adapt to complex network topologies where reference values are not accessible
Solution Approach 1:
The verification process is segmented into multiple hierarchical levels with intermediate verifiers operating at different network positions. Each verifier handles a specific segment of the attestation chain, allowing the system to adapt to complex topologies while maintaining manageable verification complexity at each level.
Solution Approach 2:
Intermediate verifiers are introduced as mediators between the central verifier and end devices. These intermediaries forward verification requests and results, enabling the system to navigate complex network topologies where direct communication between central verifier and devices is not feasible.
2Ease of operation
If protocol standardization is enforced for seamless communication, then integration is simplified, but devices with different communication protocols cannot be integrated
Solution Approach 1:
The intermediate verifier is designed with multi-functional capability to handle multiple communication protocols. It can receive attestation data in various protocols, perform verification, and forward results using appropriate protocols, thus enabling seamless integration of diverse devices without requiring universal protocol standardization.
3Reliability
If the entire attestation report is forwarded for verification, then complete verification information is available, but data transmission volume and processing load increase
Solution Approach 1:
The intermediate verifier extracts only the essential verification result from the complete attestation report for forwarding to higher-level verifiers. This extraction approach maintains verification reliability by preserving critical verification outcomes while significantly reducing data transmission volume and processing load on upper-level components.
4Reliability
If a hierarchical verification structure is implemented, then system flexibility and security are improved, but the device complexity and coordination overhead increase
Solution Approach 1:
The hierarchical verification structure is segmented into clearly defined levels with standardized interfaces between them. Each level performs specific verification functions, which reduces the perceived complexity at each node while maintaining overall system security and flexibility through the modular architecture.
Data Source
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AI summary
In the method for verifying attestation in a network, verifying is conducted with an intermediate verifier (IV) that is configured to verify an intermediate attestation report from an immediate verifier and configured to then forward the verification result and receiving the verification result. The network is configured to carry out this method.