RCM Server Cross-Domain Authentication for LAN Security

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Solution Overview

Problem

Current systems for data transmission across local area networks face challenges in securely accessing and communicating with content providers across different domains, leading to security compromises and limitations in cross-domain access.

Innovation Solution

Establishing a secure two-way communication channel between a digital content control device and a remote content management (RCM) server using authentication codes, allowing for seamless and secure data transmission and content management across local area networks without requiring special hardware or software, while complying with cross-domain browser communication protocols.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If cross domain access is allowed between different LANs, then data transmission capability is improved, but security is compromised

Engineering Contradiction:
Improvecross domain access capabilityVSAvoidsecurity
Core Design Contradiction:
Adaptability or versatilityVSReliability

Solution Approach 1:

A proxy server is introduced as an intermediary between devices on different LANs. The proxy server receives requests from the first LAN, forwards them to the second LAN, and returns responses. This mediator enables cross-domain communication while maintaining security boundaries, as the proxy server controls and monitors all cross-LAN traffic according to authentication credentials and security policies.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Reliability

If cross domain access is denied between different LANs, then security is maintained, but data transmission capability is limited

Engineering Contradiction:
ImprovesecurityVSAvoidcross domain access capability
Core Design Contradiction:
ReliabilityVSAdaptability or versatility

Solution Approach 1:

The proxy server acts as a controlled gateway that enables selective cross-domain access. It authenticates devices using credentials, maintains security policies, and permits or denies specific cross-LAN communications. This resolves the contradiction by providing both security (through authentication and policy enforcement) and adaptability (through controlled access to specific domains).

Inventive Principle:
Principle #24Intermediary (Mediator)

3Ease of operation

If known control boxes are used to access websites, then basic network access is achieved, but access to websites not on the LAN is restricted

Engineering Contradiction:
Improvenetwork access simplicityVSAvoidexternal website access capability
Core Design Contradiction:
Ease of operationVSAdaptability or versatility

Solution Approach 1:

The proxy server extends the control box functionality by providing an intermediary service that handles external website access. Devices can continue to use simple local network operations, while the proxy server transparently manages communications with external websites, maintaining both ease of operation and external access capability.

Inventive Principle:
Principle #24Intermediary (Mediator)

Data Source

PatentUS12132969B2Systems, apparatus and methods for secure and efficient data transmission across local area networks
Publication Date: 2024.10.29 DIGITAL TECH SERVICES LLC
  • US12132969B2 patent drawing
  • US12132969B2 patent drawing
  • US12132969B2 patent drawing

AI summary

In some embodiments, a method includes establishing a connection between a digital content control device that is part of a first LAN and an RCM server. A first authentication code is transmitted from the digital content control device to the RCM server via the network connection such that the RCM server: a) validates the first authentication code, and b) transmits a second authentication code to the digital content control device via the network connection. Using the first authentication code and the second authentication code, a secure two-way communication channel is established between the digital content control device and the RCM server. A set of auxiliary content is received at the digital content control device and from a content provider of a second LAN via the RCM server to be presented with the available programming content on the at least one media device.