Mutual Authentication Routing With Wake-Up Relay and Low-Power Nodes
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Rerouting authentication requests over slow in-vehicle communication channels introduces latency and leads to inefficient energy consumption and reduced lifetime of authenticators, as they need to remain in High Power Mode to respond quickly.
Innovation Solution
The proposed method involves frontloading a first part of the authentication protocol to a second entity, allowing the third entity to turn into Low Power Mode, and then sending a wake-up signal to the third entity when needed to continue the mutual authentication based on the missing part of the protocol.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If the third entity remains in High Power Mode to respond quickly to authentication requests, then response time is improved, but energy consumption increases and lifetime is reduced
Solution Approach 1:
The third entity performs preliminary actions by frontloading the first part of the authentication protocol to the second entity before entering Low Power Mode. This includes generating and storing authentication data structures, cryptographic keys, and protocol parameters in advance, so that when a authentication request arrives, the entity can quickly process it from Low Power Mode without needing to remain continuously active.
Solution Approach 2:
The second entity acts as an intermediary that stores the frontloaded authentication protocol data and forwards authentication requests to the third entity. It buffers and manages the authentication data structures, allowing the third entity to remain in Low Power Mode while still providing timely responses through the intermediary's coordination.
2Adaptability or versatility
If authentication requests are rerouted over in-vehicle communication channels, then authentication can be performed via a second entity, but latency increases due to slow communication channels
Solution Approach 1:
The authentication protocol is frontloaded in advance to the second entity, with the first part of the protocol and associated data structures prepared beforehand. This preliminary preparation reduces the processing time required when authentication requests are rerouted through the slow in-vehicle communication channels, mitigating the latency issue.
Solution Approach 2:
The authentication protocol is segmented into a first part (frontloaded to the second entity) and a missing part (remaining at the third entity). This segmentation allows the second entity to handle initial authentication processing locally using the frontloaded data, reducing dependency on slow communication channels for the entire authentication process.
Data Source
AI summary
An authentication method and system for mutual authentication between a first entity and a third entity via a second entity, based on an authentication protocol used by the first entity and the third entity. The second entity forwards mutual authentication messages between the first entity and the third entity. An apparatus is configured to perform an authentication method for a mutual authentication between a first entity and a third entity via a second entity, based on an authentication protocol used by the first entity and the third entity, the second entity forwards mutual authentication messages between the first entity and the third entity.