Content Transmission Authentication Timer for Copyright Protection
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing technologies fail to effectively restrict the transmission and duplication of copyrighted visual-audio content within a household network, allowing unauthorized access and copying when content is shared via wired or wireless LAN, potentially extending beyond personal use.
Innovation Solution
Implementing a content transmitting and receiving device system that includes authentication and encryption mechanisms, using a timer to ensure secure communication and prevent unauthorized access by measuring the time for authentication responses, thereby limiting content transmission to within the household network.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If content is transmitted via wired/wireless LAN to enable playback anywhere in the house, then portability and accessibility of visual-audio information is improved, but copyright protection deteriorates as content can be freely copied and stored in other devices
Solution Approach 1:
The patent applies preliminary anti-action by implementing authentication and encryption mechanisms before content transmission occurs. The transmitting device authenticates the receiving device and encrypts the content with a shared secret key beforehand, preventing unauthorized copying and ensuring that only authenticated devices can access the content, thus countering potential copyright infringement before it can happen
Solution Approach 2:
The patent uses encryption keys and authentication protocols as intermediaries between the transmitting and receiving devices. These intermediaries facilitate secure content transmission by establishing trusted communication channels, allowing content to be shared across the network while maintaining copyright protection through the mediating security layer
2Reliability
If authentication and encryption mechanisms are implemented for copyright protection, then copyright protection is improved, but device complexity and processing overhead increase
Solution Approach 1:
The patent applies preliminary action by establishing authentication and sharing secret keys between devices before actual content transmission occurs. This preliminary setup phase handles the complexity of key management and authentication, allowing subsequent content transmissions to proceed more efficiently with already-established security parameters
Solution Approach 2:
The patent utilizes parameter changes by dynamically generating and managing encryption keys based on authentication outcomes. The system changes security parameters (keys, authentication states) according to the transmission context, allowing flexible copyright protection that adapts to different receiving devices and content types without requiring a completely different system architecture
Data Source
AI summary
Before content transmission, the content transmitting device and the content receiving device mutually authenticate each other to verify that the other device respects copyright and rightfully handles content, and then content is encrypted by shared key data and transmitted. It is arranged that in an authentication process, a time from transmission of an authentication request or a time from transmission of an authentication response until arrival of receipt acknowledgement data is measured and only when a measured time is less than a fixed upper-limit value, content is transmitted.