Partial Media Encryption for Multi-Format Storage Efficiency
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Solution Overview
Problem
Existing media systems face challenges in efficiently providing media content in different formats without requiring substantial computing resources for decryption and encryption, and they often necessitate storing multiple copies of encrypted media content, leading to high storage overhead.
Innovation Solution
A media system that stores a single copy of media content in an unencrypted state and multiple copies in format-specific encrypted states, allowing for efficient construction of requested representations by combining unencrypted and encrypted portions, reducing the need for real-time decryption and encryption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If media content is encrypted in multiple formats to support different devices, then format compatibility is improved, but storage space requirements increase substantially
Solution Approach 1:
The media content is segmented into two distinct portions: an encrypted portion and an unencrypted portion. The encrypted portion contains only the essential data needed for decryption and format conversion, while the unencrypted portion contains the remaining media content. This segmentation allows the system to store a single copy of the full content while supporting multiple encrypted formats, thereby reducing storage space requirements while maintaining format compatibility.
2Quantity of substance
If decryption and encryption are performed in real-time to transform content formats, then storage requirements are reduced, but computing resource consumption increases substantially
Solution Approach 1:
The system performs preliminary encryption of only the necessary portion of the media content during the initial content creation or upload process. By pre-encrypting only the essential portion in multiple formats and storing it alongside the unencrypted portion, the system eliminates the need for computationally intensive real-time decryption and re-encryption operations during content delivery, thereby reducing computing resource consumption while maintaining reduced storage requirements.
Data Source
AI summary
Techniques and mechanisms described herein facilitate the efficient common storage of partially encrypted content. According to various embodiments, a client device to transmit a designated representation of a media content item via a communications interface may be received. The media content item may be associated with a plurality of representations including the designated representation. The media content item may be associated with first media content data and second media content data. The first media content data may be shared among the plurality of representations. The second media content data may be specific to the designated representation. The first media content data may be combined with the second media content data to create a designated partially encrypted media content portion associated with the designated representation via a processor. The designated partially encrypted media content portion may be transmitted to the client device via the communications interface.