OpenRoaming EAP Failure Codes for Smarter Wi-Fi Reauthentication
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Solution Overview
Problem
Current wireless networks fail to provide detailed reasons for authentication and authorization failures, leading to inefficient repetitive attempts by devices, which waste network bandwidth and resources.
Innovation Solution
Implement methods to securely transmit failure codes or reasons to supplicant devices, identifying why authentication or authorization processes failed, allowing devices to make informed decisions on retrying, switching profiles, or seeking alternative actions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If wireless networks do not transmit failure reasons to supplicant devices, then network security is maintained by not exposing failure details, but devices cannot optimize their access strategies and continue repetitive failed attempts
Solution Approach 1:
The patent introduces an intermediary mechanism (the authenticator) that receives detailed failure reasons from the AAA server and selectively transmits appropriate failure cause codes to supplicant devices. This intermediary role allows the system to provide useful failure information to devices while maintaining security by filtering and encoding the information appropriately, thus resolving the contradiction between providing failure reasons and maintaining security.
Solution Approach 2:
The patent transforms the detailed failure reason information into standardized failure cause codes with specific parameter values. By changing the parameter representation from detailed textual reasons to coded values, the system enables devices to understand failure causes and optimize their behavior while preventing exposure of sensitive information that could compromise security.
2Loss of energy
If devices continue repetitive authentication attempts without knowing failure reasons, then they maintain simple access logic, but network bandwidth and resources are wasted
Solution Approach 1:
The patent implements a feedback mechanism where the authenticator provides failure cause codes to supplicant devices based on authentication failure reasons. This feedback enables devices to adjust their access strategies intelligently - such as switching authentication methods or delaying retry attempts - thereby reducing unnecessary network traffic and resource consumption while maintaining relatively simple device logic through standardized code interpretation.
3Reliability
If detailed failure reasons are transmitted to devices, then devices can make informed decisions about retrying or switching profiles, but security is compromised by exposing failure information
Solution Approach 1:
The patent applies local quality by providing different levels of failure information to different devices based on their specific failure scenarios. The authenticator analyzes the failure reason and selects appropriate failure cause codes to transmit, ensuring that devices receive sufficient information to resolve their specific authentication issues without exposing sensitive security information that could be exploited by malicious actors.
Solution Approach 2:
The patent uses disposable failure cause codes that are specific to individual authentication attempts and can be safely disclosed. These coded failure reasons are designed to be informative for the specific device attempting authentication but do not reveal long-term security patterns or sensitive system information, making them safe to transmit without compromising overall system security.
Data Source
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AI summary
The presently claimed disclosure is directed to methods that may be implemented at a computer. Methods and systems consistent with the present disclosure may include extending protocols associated with authenticating client (i.e. supplicant) devices and with authorizing those supplicant devices to access a wireless network. These methods may include sending data relating to the failure of an authentication and/or an authorization process to a supplicant device attempting to access a wireless network. Methods discussed within may include securely sending failure codes or reasons to a supplicant device that identify why an authentication or authorization process failed. These methods may include sending messages between a supplicant device, an authenticator device, and an authentication and authorization server. After a first failure, the supplicant device may be able to access the wireless network after a reason or code of that failure has been reported to the supplicant device.