Portable Media Encryption Verification via Intermediary Controller
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Solution Overview
Problem
Current portable media systems lack a method for host computers to verify if attached external storage supports appropriate encryption levels, making it difficult to distinguish between encrypted and unencrypted drives, thereby risking confidential information leakage.
Innovation Solution
A portable media system with a controller that communicates clear information and an internal encryption system, allowing the host computer to decrypt cipher information, and using enhanced command sets and encryption keys to verify compatibility and ensure secure data exchange.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If portable media systems use internal encryption algorithms, then confidential information is protected, but host computer systems cannot verify encryption capabilities
Solution Approach 1:
The patent introduces an intermediary verification process where the portable media system acts as a mediator between the encryption algorithm and the host computer. The system provides verification mechanisms that allow the host to confirm encryption capabilities without exposing the internal encryption keys or algorithms, thus maintaining security while enabling verification.
Solution Approach 2:
The patent implements feedback mechanisms where the portable media system responds to host computer queries about encryption capabilities. The system provides feedback information that confirms its encryption status and capabilities without revealing sensitive internal details, allowing the host to make informed decisions about data security.
2Difficulty of detecting and measuring
If host computer systems query portable media for encryption capabilities, then verification is attempted, but the system can be easily spoofed
Solution Approach 1:
The patent applies preliminary action by pre-configuring the portable media system with verification-ready encryption mechanisms and authentication protocols before any host computer attempts to query it. The system is prepared in advance to provide cryptographic proof of its encryption capabilities, making spoofing difficult because the verification occurs through pre-established secure channels and protocols.
3Reliability
If companies restrict use of removable storage by policy, then sensitive information is protected, but usability and accessibility are reduced
Solution Approach 1:
The patent changes the parameter of verification capability, transforming removable storage from an unverified security risk to a verified secure device. By enabling host computers to verify encryption capabilities, the system allows organizations to relax restrictive policies while maintaining security, as users can confidently use verified encrypted drives without fear of data leakage.
Data Source
AI summary
A portable media system for a host computer system, and method of operation thereof, that includes: a controller in the portable media system for communicating clear information between the portable media system and the host computer system; and an encryption system in the portable media system for providing an encryption algorithm for the controller to decrypt cipher information for the host computer system.