Storage Device Reader Security Authentication Mechanism

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Solution Overview

Problem

Portable storage devices lack robust security features, leading to exposure and loss of sensitive data due to lack of effective identification and encryption methods, with existing security measures often burdening host computers and being difficult to implement.

Innovation Solution

A storage device reader with a data storage unit and control unit that securely identifies the reader and storage device through unique recognition information, passwords, and encryption/decryption processing, ensuring data access only when the correct reader is used and converting the storage area to a read-only format for enhanced security.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If separate security software is used to encrypt data, then encryption functionality is provided, but the host computer is heavily loaded and real-time encryption is limited

Engineering Contradiction:

Improvesecurity functionVSAvoidhost computer performance

Core Design Contradiction:

ReliabilityVSProductivity

Solution Approach 1:

The security function is extracted from the host computer and relocated to the portable storage device itself. The encryption/decryption processing unit and data storage unit are integrated into the portable storage device, allowing security operations to occur independently without burdening the host computer's processing resources.

Inventive Principle:

Principle #2Taking out (Extraction)

Solution Approach 2:

The portable storage device performs its own encryption and decryption operations autonomously using its dedicated encryption/decryption processing unit. The device manages its own security keys and cryptographic operations without requiring host computer intervention, enabling real-time security processing.

Inventive Principle:

Principle #25Self-service

2Reliability

If portable storage devices are made more secure with identification and encryption, then data security is improved, but device complexity increases

Engineering Contradiction:

Improvedata securityVSAvoidsecurity mechanism complexity

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

Multiple security functions are merged into a single integrated controller unit within the portable storage device. The controller unit combines the encryption/decryption processing unit, data storage unit, and authentication logic into one cohesive component, reducing overall system complexity while maintaining comprehensive security functionality.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The controller unit serves multiple security functions simultaneously: it manages authentication through reader recognition information, performs encryption/decryption of data, stores security credentials in the data storage unit, and controls file system operations. This multi-functionality reduces the need for separate dedicated components for each security task.

Inventive Principle:

Principle #6Universality (Multi-functionality)

Data Source

PatentUS9747427B2Storage device reader having security function and security method using thereof

Publication Date: 2017.08.29 CAMMSYS CORP

AI summary

Disclosed is a storage device reader for interfacing a storage device and a user terminal, which includes a storage unit and a control unit. The data storage unit stores reader recognition information uniquely assigned to the storage device reader. The control unit retrieves reader recognition information stored in the storage device, determines whether or not the retrieved reader recognition information matches reader recognition information stored in the data storage unit, and transferring a file list stored in the storage device to the user terminal if the retrieved reader recognition information matches the stored reader recognition information.