Portable Terminal Authentication for Secure Image Printing
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Solution Overview
Problem
In shared printing systems, users' sensitive identification information for image data files is inadvertently revealed to other users during the authentication process, compromising security.
Innovation Solution
An image recording system that includes an image recording apparatus and a portable terminal for secure data communication, where authentication information is used to determine if specific identification information should be transmitted and displayed only on the portable terminal, preventing exposure to other users.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If authentication information is transmitted to the printer and displayed on the operation panel, then authentication can be performed, but identification information becomes visible to other users
Solution Approach 1:
The display function is segmented between the printer operation panel and the portable terminal. The printer displays only authentication status (pass/fail) on its operation panel, while the portable terminal displays detailed identification information (file names, sizes) locally to the user. This segmentation prevents other users from viewing sensitive identification information on the printer's display while maintaining authentication security.
Solution Approach 2:
The portable terminal acts as an intermediary device between the user and the printer. Instead of displaying all identification information directly on the printer's operation panel, the terminal receives authentication information from the printer and selectively displays only necessary information to the authenticated user. This intermediary approach protects sensitive information from being viewed by other users while maintaining the authentication process.
2Ease of operation
If all identification information is displayed on the printer operation panel, then users can view file details, but security is compromised
Solution Approach 1:
Different display qualities are provided at different locations: the printer operation panel displays only basic authentication information (pass/fail status) visible to all users, while the portable terminal displays detailed identification information (file names, sizes, types) only to the authenticated user. This local quality differentiation ensures ease of operation for authenticated users while maintaining security by limiting sensitive information visibility.
Solution Approach 2:
Instead of the printer displaying all identification information to the user (conventional approach), the system inverts the approach by having the portable terminal display the information locally after authentication. The printer only provides authentication status, while the terminal handles the detailed information display. This inversion protects security while maintaining ease of operation through local display on the user's device.
Data Source
AI summary
When authentication information is input via an IC card reader and includes predetermined information. A portable terminal corresponding to the authentication information is identified, and specific identification information that identifies an image-data file associated with the authentication information is extracted. The extracted specific identification information is transmitted to the identified portable terminal, and the portable terminal displays a list of the received specific identification information on its touch panel. The operation of a printing mechanism is controlled, so that the image-data file corresponding to the specific identification information that selected with a touch panel on the portable terminal is accessed, and an image defined by the image-data file defines is printed on a sheet.