Removable Medium ID Verification for Data Access Control
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
In a network environment with multiple computers and card readers, users who know the password for the card reader may inadvertently access and leak confidential data stored on memory cards, as the current systems do not ensure that only authorized users with the correct ID information can access the data.
Innovation Solution
A removable-medium apparatus with a judgment unit that verifies the entered ID information against the stored ID information on the medium, allowing data access only when the information matches, thereby preventing unauthorized access.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a password is set for the card reader to allow only users who know the password to access the card reader, then access security to the card reader is improved, but users who know the password may not always be authorized to access all data on the memory card, leading to potential data leakage
Solution Approach 1:
The authentication system is segmented into two independent layers: card reader access authentication (first password) and data access authentication (second password). This segmentation allows different users to have different levels of access rights - some users can access the card reader but not all data, while others can access both. The judgment unit separately verifies both passwords to determine the appropriate access level, preventing unauthorized data access while maintaining convenient card reader access.
2Ease of operation
If IC card is used to automatically set user name and password after one-time input, then convenience of operation is improved, but the system still lacks granular control over which users can access which data, leaving security vulnerabilities
Solution Approach 1:
The judgment unit acts as an intermediary between the authentication system and data access control. It receives both the first password (for card reader access) and the second password (for data access), verifies them against stored values, and based on the verification results, determines whether to allow data access. This intermediary layer enables fine-grained access control while maintaining the convenience of IC card-based authentication, as users can have their IC cards pre-configured with appropriate password combinations for their authorization level.
Data Source
AI summary
A removable-medium apparatus that outputs data, which is stored on a removable medium that can be freely mounted or removed. The removable-medium apparatus comprises: a judgment unit that determines whether or not ID information that is entered matches ID information that is stored on the removable medium; and a control unit that outputs the data stored on the removable medium when the judgment unit determines that the entered ID information matches the ID information stored on the removable medium, and does not output the data stored on the removable medium when the judgment unit determines that the ID entered information does not match the ID information stored on the removable medium.