Storage Device Multi-Identifier Authentication Segmentation
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Solution Overview
Problem
Existing storage devices, such as SD cards and Blu-ray discs, are rendered unusable if their identifiers are discarded due to illegal use, leading to a loss of functionality for all purposes.
Innovation Solution
A method and device that provide multiple identifiers encoded according to different uses of the storage device, allowing individual authentication and verification for each use, enabling the storage device to continue functioning for other purposes even if one identifier's authentication fails.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single identifier is used for storage device authentication, then authentication is simplified, but the entire device becomes unusable if that identifier is discarded due to illegal use
Solution Approach 1:
The storage device is divided into multiple functional areas, each with its own identifier. The first identifier is stored in a read-only area for basic authentication, while the second identifier is stored in a writable area for additional functionality. This segmentation allows independent authentication for different uses, so if one identifier is discarded, the device can still function with the other identifier.
Solution Approach 2:
The storage device is designed to support multiple identifiers and authentication methods, enabling it to serve multiple purposes. The device can be authenticated using either the first identifier or the second identifier depending on the intended use, making it universally applicable across different scenarios even after one authentication path is blocked.
2Adaptability or versatility
If multiple identifiers are stored in the storage device, then the device can continue functioning for other purposes after one identifier is discarded, but the device complexity increases
Solution Approach 1:
The storage device is divided into multiple functional areas, each with its own identifier. The first identifier is stored in a read-only area for basic authentication, while the second identifier is stored in a writable area for additional functionality. This segmentation allows independent authentication for different uses, so if one identifier is discarded, the device can still function with the other identifier.
Solution Approach 2:
Different areas of the storage device have different qualities and purposes. The read-only area contains the first identifier for basic, immutable authentication, while the writable area contains the second identifier for flexible, changeable authentication. This local differentiation optimizes each area for its specific function while maintaining overall system simplicity.
3Reliability
If an identifier is stored in a read-only area, then the identifier cannot be altered or tampered with, but the storage device cannot adapt to different uses or have the identifier changed
Solution Approach 1:
The storage device is divided into multiple functional areas, each with its own identifier. The first identifier is stored in a read-only area for basic authentication, while the second identifier is stored in a writable area for additional functionality. This segmentation allows independent authentication for different uses, so if one identifier is discarded, the device can still function with the other identifier.
Solution Approach 2:
The storage device is designed to support multiple identifiers and authentication methods, enabling it to serve multiple purposes. The device can be authenticated using either the first identifier or the second identifier depending on the intended use, making it universally applicable across different scenarios even after one authentication path is blocked.
4Adaptability or versatility
If the second identifier is stored in a writable area, then the identifier can be modified or updated, but the identifier may be vulnerable to tampering or illegal changes
Solution Approach 1:
The storage device is divided into multiple functional areas, each with its own identifier. The first identifier is stored in a read-only area for basic authentication, while the second identifier is stored in a writable area for additional functionality. This segmentation allows independent authentication for different uses, so if one identifier is discarded, the device can still function with the other identifier.
Solution Approach 2:
The authentication device performs verification of the second identifier before allowing it to be used for authentication. This preliminary verification action ensures that even though the identifier is stored in a writable area and can be modified, any changes must pass verification, preventing unauthorized tampering while maintaining flexibility.
Data Source
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Figure 3
AI summary
An authentication method of a storage device includes requesting an EID (Encoded IDentifer) to the storage device by an authentication device for authenticating the storage device, receiving the EID by the authentication device, restoring original ID information by decoding the received EID, and verifying individual ID information corresponding to use of the storage device included in ID information by using ID authentication information received from the storage device, wherein the ID information includes multiple pieces of individual ID information corresponding to the use of the storage device.