Multimedia Configuration Access via Gateway-Issued Terminal Credentials
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Solution Overview
Problem
Existing multimedia equipment configurations are insecure when the service interface is unusable, particularly in nomadic situations, leading to unauthorized access to configuration modules.
Innovation Solution
A method and system for securely accessing multimedia equipment configuration modules through a terminal interface, involving authentication and exchange of identification parameters via a home gateway, ensuring secure access even when the multimedia equipment is not directly connected to the gateway.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the service interface is used for configuration access, then secure access is maintained when connected to home gateway, but access becomes impossible when multimedia equipment is disconnected (nomadic situation)
Solution Approach 1:
The home gateway acts as an intermediary that facilitates the exchange of identification parameters between the terminal and multimedia equipment. The terminal requests identification parameters through the gateway, which then forwards the request to the multimedia equipment and relays the response back to the terminal, enabling secure authentication without direct connection between terminal and multimedia equipment.
Solution Approach 2:
The identification parameters are obtained in advance during the initialization phase when the service interface is still functional. The terminal secures the necessary authentication credentials before the potential disconnection occurs, allowing it to later access the configuration module through the terminal interface using these pre-obtained parameters.
2Reliability
If identification parameters are transmitted through home gateway, then secure exchange is ensured, but additional communication steps increase complexity
Solution Approach 1:
The home gateway performs multiple functions: it serves as a communication router between devices, an authentication intermediary that validates requests, and a message relay that forwards identification parameters securely. This multi-functionality consolidates several security and communication tasks into a single existing device, avoiding the need for additional dedicated security infrastructure.
3Adaptability or versatility
If terminal interface is used for configuration access, then access is possible without home gateway connection, but security risk increases without authentication
Solution Approach 1:
The terminal obtains identification parameters in advance through the secure service interface before attempting to access the configuration module via the terminal interface. This preliminary authentication ensures that only authorized terminals with valid credentials can access the configuration, even when disconnected from the home gateway.
Solution Approach 2:
The identification parameters serve as an intermediary authentication mechanism that bridges the security gap when the service interface is unavailable. These parameters, originally obtained through secure gateway-mediated communication, enable the terminal to prove its authorization when accessing the configuration module directly through the terminal interface without real-time gateway verification.
Data Source
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AI summary
Method of configuring a multimedia device intended to be connected to an interconnection device (GW) by which it is authenticated, and to at least one terminal (UE1), said multimedia device comprising a service interface (IS) to the interconnection device (GW) and a terminal interface (IT) to said terminal (UE1), characterized in that it comprises in the course of an initialization phase: - a step of receiving, through the service interface (IS), a first request (RQ1) sent by the terminal (UE1) to obtain an identification parameter authorizing access to a configuration module for the multimedia device, said terminal (UE1) being authenticated with the interconnection device (GW), - a step of transmitting, through the service interface (IS), a message (MSG1) destined for the terminal (UE1) comprising the identification parameter requested, and in that it comprises in the course of a phase of configuration of the multimedia device: - a step of identifying the interface through which a second request (RQ2) sent by the terminal (UE1) to access the configuration module is received, - when the second request (RQ2) is received through the terminal interface (IT), a step of sending, through the terminal interface (IT), a third request (RQ3), destined for the terminal (UE1), for transmission of the identification parameter, - a step of receiving, through the terminal interface (IT), a message sent by the terminal (UE1) comprising said identification parameter.