Storage Device Network Identifier Access Control
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Solution Overview
Problem
There is no automated solution for managing access to portable storage devices when they are shared across different networks, requiring users to manually check and remove sensitive data before connecting them to a new network.
Innovation Solution
A method and device that retrieve and use network identifiers to differentiate between 'friendly' and 'foreign' networks, allowing access to private data only on recognized networks, while restricting access to private data on unfamiliar networks.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the storage device allows access to all data on any network, then ease of sharing is improved, but security of private data deteriorates
Solution Approach 1:
The patent segments data into public and private categories, and further segments access rights based on network identification. The storage device automatically identifies the network type (home/office vs. public) and applies different access policies accordingly, allowing full access on trusted networks while restricting access to only public data on untrusted networks.
Solution Approach 2:
The storage device performs preliminary network identification and classification before any data access occurs. By detecting network identifiers (SSID, MAC addresses, router IP) and comparing them against stored lists of trusted networks, the system pre-establishes appropriate access permissions, eliminating the need for manual user intervention before sharing.
2Object-affected harmful factors
If the user manually checks and removes sensitive data before connecting to a new network, then security of private data is improved, but ease of operation deteriorates
Solution Approach 1:
The storage device autonomously performs network identification, classification, and access control enforcement without requiring user action. The system automatically detects network characteristics, compares them against stored profiles, and adjusts data accessibility accordingly, freeing users from manual security management tasks.
Solution Approach 2:
The system continuously monitors network identification information and dynamically adjusts access permissions based on the detected network type. This closed-loop approach ensures that access control policies are automatically updated in response to changes in the network environment, maintaining security while enabling seamless connectivity.
3Ease of operation
If the storage device implements automated network identification and access control, then ease of operation is improved, but device complexity increases
Solution Approach 1:
The storage device leverages existing multi-functional components already present in modern portable storage devices: network interface cards capable of detecting various network identifiers (SSID, MAC addresses, router IP addresses), microprocessors for comparing data against stored lists, and memory for storing network profiles and access control policies. This approach enables sophisticated access control without adding dedicated hardware complexity.
Data Source
AI summary
A technique is provided for a personalized access to a storage device from a communication device through a local network, with public data and private data being stored in the storage device. The storage device is configured to retrieve an identifier of the local network, allow access to the public data and a set of private data if the retrieved identifier is included in a first list of local networks, and deny access to the set of private data if the retrieved identifier is not included in the first list of the local networks.