Removable Bridge for Custom Storage Security
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Solution Overview
Problem
Storage devices, such as HDDs and SSDs, face challenges in customization for security-conscious organizations, as manufacturers can only produce devices according to limited product lines, making it difficult for organizations to implement custom security measures without revealing security details to the manufacturer.
Innovation Solution
Incorporating a removable bridge with a common interface and authentication process that allows third-party programming, enabling organizations to implement secure access protocols independently and customize storage devices for enhanced security, while maintaining secrecy around security implementation details.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If storage devices are produced according to limited product lines by manufacturers, then manufacturing efficiency is improved, but customization capability for security measures deteriorates
Solution Approach 1:
The storage device is divided into two independent parts: a standard storage device manufactured by the manufacturer and a separate removable bridge that can be programmed with custom security measures. This segmentation allows the storage device to be produced efficiently in standard configurations while enabling organizations to implement customized security protocols through the independently programmable bridge, resolving the contradiction between manufacturing efficiency and customization capability.
Solution Approach 2:
A removable bridge is introduced as an intermediary component between the storage device and the host system. This bridge acts as a mediator that can be programmed with custom security measures by third parties without requiring the storage device manufacturer to implement those measures. The bridge interfaces with both the storage device and the host, enabling customized security functionality while keeping the standard storage device manufacturing process unchanged.
2Adaptability or versatility
If manufacturers implement custom security measures, then security customization is improved, but secrecy of security implementation details deteriorates
Solution Approach 1:
The security implementation details are extracted from the storage device itself and placed into a separate removable bridge. This extraction allows organizations to implement custom security measures while keeping the security implementation details confidential, as the bridge can be programmed by trusted third parties and removed or replaced without exposing the storage device manufacturer to security secrets. The storage device remains generic while the security logic resides in the removable bridge.
3Ease of manufacture
If a removable bridge with common interface is used, then ease of manufacture is improved, but device complexity increases
Solution Approach 1:
The removable bridge is designed with a common interface that can work with multiple storage devices from different manufacturers. This universal interface simplifies manufacturing by using standardized components while the bridge's programmable nature allows it to perform multiple functions including security authentication, data processing, and compression. The standardization of the bridge interface reduces manufacturing complexity despite adding functional capabilities.
Data Source
AI summary
A storage device comprises a storage medium, storage controller, a host interface, and a bridge slot. The storage controller is configured to control read and write operations to the storage medium and operates according to a firmware written by a storage device manufacturer. The bridge slot is configured to receive a removable bridge storing software written by a third-party different from the storage device manufacturer. The removable bridge is configured to intercept a first command sent from the host system to the storage controller, modify the first command according to the software stored on removable bridge, and transmit the first command to the storage controller.