Active Optical Cable Authentication via Dual-End Storage Aggregation
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Solution Overview
Problem
Existing authentication methods for active optical modules in active optical cables are inadequate when the modules are not part of a matched pair, as they rely on pre-assigned identifiers, which is not feasible in scenarios with multiple segments of cabling and non-matched pairs.
Innovation Solution
A method and system that involve reading information from both active-end and passive-end storage devices of active optical modules, aggregating this information at a central point, and using it to authenticate the modules, allowing for the association of non-matched pairs and enabling secure communication paths between host devices.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If traditional authentication methods using pre-assigned identifiers are used for active optical modules, then authentication can be performed for matched pairs, but authentication cannot be performed for non-matched pairs or multiple segments of cabling
Solution Approach 1:
The patent divides the cabling system into multiple separable segments, each with its own storage device containing identification information. Instead of treating the entire cable as a single authenticated unit, each segment can be individually identified and tracked, enabling authentication across non-matched pairs and multiple segments while maintaining security.
Solution Approach 2:
The patent introduces passive optical interconnects and aggregation points as intermediary devices that collect and process identification information from multiple active optical modules. These intermediaries enable the system to associate modules across multiple segments without requiring direct matched-pair authentication, thus extending authentication capability to non-matched configurations.
2Adaptability or versatility
If active optical modules are designed as matched pairs for single-segment cables, then authentication is straightforward, but flexibility and adaptability for multiple segments and non-matched pairs are reduced
Solution Approach 1:
The patent implements a universal authentication system where each active optical module, regardless of whether it belongs to a matched pair or not, contains storage devices with identification information that can be read and processed by the authentication entity. This universal approach allows the same authentication mechanism to handle single-segment matched pairs, multi-segment configurations, and non-matched pairs uniformly, greatly enhancing cabling configuration flexibility.
3Reliability
If information is stored only in active-end storage devices, then authentication can be performed quickly, but the ability to authenticate multiple segments and verify complete cable paths is limited
Solution Approach 1:
The patent pre-stores identification information in both active-end and passive-end storage devices during manufacturing or cable assembly. This preliminary action ensures that when authentication is needed, the system can quickly retrieve pre-existing identification data from both ends of each cable segment without requiring time-consuming measurements or complex verification procedures, thus maintaining fast authentication while improving reliability.
Data Source
AI summary
First and second active optical modules that terminate first and second active optical cable segments, each of which having a respective active end and a respective passive end, can be authenticated by: reading information from active-end storage devices attached to the respective active ends of the first and second active optical modules; providing information read from the active-end storage devices to an aggregation point; reading information from passive-end storage devices attached to the respective passive ends of the first and second active optical cable segments; providing information read from passive-end storage devices to the aggregation point; and authenticating the first and second active optical modules using information provided to the aggregation point.