Secure Video Distribution via Firewall Mediation
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Solution Overview
Problem
Existing security systems face challenges in securely sharing live video from restricted IP camera networks with external parties without compromising the security of the camera network.
Innovation Solution
A secure video data network system that includes a secure network with an ingestion node for normalizing and generating UDP/RTP video streams, and a distribution network with a distribution node that receives these streams through a firewall, allowing external users to access the video streams without direct communication with the secure network.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If traditional streaming protocols (RTSP, RTMP) are used to access live video from cameras, then video distribution is enabled, but security vulnerabilities are introduced as compromised distribution servers could be used as jumping points to gain unauthorized access to the secure camera network
Solution Approach 1:
The patent introduces a firewall as an intermediary component between the secure camera network and the distribution server. The firewall acts as a mediator that allows video streams to pass through while blocking unauthorized access attempts. This resolves the contradiction by enabling video distribution functionality while maintaining security through the intermediary firewall layer that prevents the distribution server from becoming a jumping point for unauthorized access.
2Productivity
If firewall rules are opened to allow distribution server connections to cameras, then video streaming is enabled, but security is compromised as the distribution server could potentially access the secure network
Solution Approach 1:
The firewall serves as an intermediary that enables live video streaming by allowing specific traffic (video streams) to pass through while blocking unauthorized access attempts. This resolves the contradiction by distinguishing between legitimate video streaming traffic and harmful unauthorized access, allowing productivity to improve while preventing harmful factors through selective filtering.
Solution Approach 2:
The network architecture is segmented into distinct zones: the secure camera network, the firewall layer, and the distribution server. This segmentation isolates the distribution server from direct access to the secure network, allowing video streaming functionality while preventing the distribution server from becoming a vector for unauthorized network access.
3Device complexity
If direct connections are established between distribution server and cameras, then video access is simplified, but security is weakened as the distribution server gains direct access to the secure network
Solution Approach 1:
The firewall is introduced as an intermediary between the distribution server and cameras, adding a layer of security while maintaining connection simplicity. The firewall handles the complexity of secure communication protocols and traffic filtering, allowing the distribution server to access video feeds without establishing direct connections to the secure network, thus maintaining both simplicity and security.
Data Source
AI summary
A secure video transmission system and method comprises a secure network that is connected to a distribution network through a firewall. The secure network is adapted to transmit video data to the distribution network that can in turn transmit the video data to an end user after receiving a request for video URL. Video data can be accessed by an external user without directly accessing the video data sources. The firewall does not permit any devices in the distribution network to initiate a connection to any devices on the secure network.