Smart Object Security for Media Storage Decryption
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Solution Overview
Problem
Existing media storage technologies fail to effectively prevent unauthorized copying and decryption of encrypted content, as encryption keys can be extracted and used to decrypt content even when copied to another device.
Innovation Solution
A media storage device with a separate smart object attached, containing decryption information, which is not readable by standard media readers and can only be accessed by a special smart object reader, ensuring that security information is not copied with the content.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If encryption key is stored in the media storage, then decryption is enabled, but security is compromised as key can be extracted and copied
Solution Approach 1:
The system divides the storage into two separate components: media storage for content and a smart object for security information. This segmentation ensures that encryption keys are physically separated from the content they protect, preventing key extraction attacks while maintaining decryption capability through the smart object reader.
Solution Approach 2:
The security information (encryption key) is extracted from the media storage and placed in a separate smart object. This extraction eliminates the vulnerability of storing keys within the content storage, as the key now resides in a dedicated security module that can only be accessed through specific authentication protocols.
2Reliability
If smart object is attached on media storage, then security information is separated, but mechanical interference may occur in media reader
Solution Approach 1:
The smart object is embedded within a layer covering the surface of the media storage, making it substantially coplanar with the layer. This nesting approach allows the smart object to be physically attached for security purposes while remaining flush with the surface to avoid mechanical interference with the media reader's reading head.
Solution Approach 2:
The smart object is positioned on the rounded surface opposite to the burning/storage surface, utilizing the third dimension (depth/thickness) of the disc structure. This spatial arrangement allows simultaneous operation of the reading head on one side and the smart object reader on the other side without mechanical conflict.
3Adaptability or versatility
If smart object reader is added to media reader, then security information can be read, but device complexity increases
Solution Approach 1:
The media reader is designed with multi-functionality, incorporating both the traditional reading head for content retrieval and a smart object reader for security information extraction. This universal design allows a single device to handle both standard playback and secure decryption operations without requiring separate dedicated devices.
Data Source
AI summary
A media storage device may store content adapted to be inserted in a media reader for reading the content. The content may be encrypted, and the media storage may include a smart object physically attached to the media storage and arranged to be read by a smart object reader of the media reader. The smart object may include security information for decrypting the content in the smart object reader.