Roaming Credential Authentication for VPN Session Establishment
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Solution Overview
Problem
In Wi-Fi roaming scenarios, users face cumbersome and duplicative processes when attempting to access secure information, requiring repeated input of usernames and passwords to establish VPN sessions across different networks.
Innovation Solution
The system employs a secure communication tunnel, such as EAP-TTLS, between the client and the AAA server, allowing for authentication without resubmitting credentials, and utilizes a key package with dual encryption keys and an access control list to secure communications, with the AAA agent managing authentication and key distribution to ensure security and reduce user burden.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the client inputs username and password for Wi-Fi authentication at the partner network, then the client gains access to the partner network services, but the client must re-submit the same credentials to establish a VPN session to access secure information at the home network
Solution Approach 1:
The system performs preliminary action by capturing and storing the username and password during the initial Wi-Fi authentication process at the partner network. These credentials are then reused for the VPN session establishment without requiring the user to re-input them, thereby eliminating redundant authentication steps while maintaining security through the use of captured credentials in the appropriate context
2Reliability
If the system requires separate authentication for Wi-Fi access and VPN session establishment, then security is maintained through multiple verification steps, but the user experience becomes cumbersome and processing load increases
Solution Approach 1:
The system merges the Wi-Fi authentication process and VPN session establishment process by using the same username and password credentials for both purposes. The captured credentials from Wi-Fi authentication are directly utilized for VPN authentication, combining what were previously separate authentication flows into a unified process that reduces complexity while maintaining security through consistent credential verification across both access types
3Adaptability or versatility
If the client stores and transmits credentials multiple times across different authentication processes, then access is enabled across multiple networks and services, but the exposure of credentials increases and processing demands on the client increase
Solution Approach 1:
The system performs preliminary action by capturing the credentials during the initial Wi-Fi authentication process and storing them securely for subsequent use. This preliminary capture and storage eliminates the need for repeated credential transmission and input in later VPN authentication processes, thereby reducing credential exposure opportunities and processing demands while maintaining adaptability for access across different networks and services
Data Source
AI summary
Providing virtual private network (VPN) sessions or other types of secure or private access to data when a client authorized to access the data travels or otherwise roams from a home network to a partner network is contemplated. The VPN session may be established as part of or as a result of an authentication process undertaken by the client when gaining access to the partner network, such as but not necessarily limited to a home network authentication process undertaken at the partner network to authenticate the client to access partner network services.