Hybrid Media Distribution for Secure Content Delivery
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing digital content protection methods, such as encryption, are vulnerable if the encryption key is compromised, allowing unauthorized access and copying of content.
Innovation Solution
A hybrid media distribution scheme that separates digital content into two parts: a bulk, unsecured first portion that can be freely distributed and stored, and a smaller, essential second portion that is streamed securely over a network, making the content unusable without both parts.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If encryption is used to protect digital content, then security is improved, but vulnerability increases if the encryption key is compromised
Solution Approach 1:
The content is divided into two separate parts: a first portion that can be freely distributed and stored, and a second portion that is streamed securely online. Neither part alone can be used to reconstruct the complete content, eliminating the single point of failure that exists in traditional encryption schemes where compromising one key exposes all content.
Solution Approach 2:
The essential information needed to reconstruct content is extracted into a separate second portion that is kept online and streamed only when needed. This separates the bulk data storage from the critical reconstruction elements, allowing security updates to the online portion without affecting distributed copies of the first portion.
2Ease of operation
If content is distributed freely for convenience, then accessibility is improved, but copy protection deteriorates
Solution Approach 1:
By segmenting content into a distributable first portion and a protected second portion, the system enables free distribution of the first portion while maintaining protection through the controlled delivery of the second portion via secure streaming.
Solution Approach 2:
The system changes the delivery parameter of the second portion from permanent distribution to temporary streaming, allowing content to be made available for a limited amount of time only when needed for reconstruction, thereby maintaining protection while enabling accessibility.
3Reliability
If encryption keys are updated regularly to improve security, then protection is improved, but system compatibility worsens due to multiple key versions
Solution Approach 1:
By extracting the essential reconstruction information into a separately managed second portion that is streamed online, the system can update security methods and keys for this portion without affecting previously distributed first portions, maintaining both security and compatibility.
4Ease of operation
If all content data is distributed to users, then usability is improved, but security vulnerability increases
Solution Approach 1:
The system segments content so that only the first portion is distributed for storage, while the critical second portion remains online and is streamed temporarily only when needed for reconstruction, reducing the security vulnerability of distributed data.
Solution Approach 2:
The delivery mode of the second portion changes from permanent distribution to temporary streaming, allowing users to have full usability when needed while minimizing security vulnerability by not permanently storing the complete reconstructable content locally.
Data Source
AI summary
A method for use in providing content that is made up of data includes providing a first portion of the data making up the content to a user, and making available for a limited amount of time an ability to stream a second portion of the data making up the content to a device having the first portion of the data. The second portion of the data includes essential information for reconstructing the content from the first portion of the data. Also disclosed are a storage medium storing a computer program for causing a processor based system to assist with providing content, and a system for use in providing content.