Locked Print Module with Intruder Detection and Data Deletion
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Solution Overview
Problem
Conventional locked printing approaches fail to securely manage electronic documents on printing devices, as they are susceptible to unauthorized access until an authorized user prints them, posing risks with sensitive information.
Innovation Solution
Implementing a locked print module on printing devices that verifies password data with user identification, increments a fail count, and deletes locked print data if the maximum fail count is reached, thereby preventing unauthorized access.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If locked print data is stored on the printing device until authorized printing, then printing control is achieved, but unauthorized access susceptibility increases
Solution Approach 1:
The patent applies preliminary action by pre-storing encrypted locked print data on the printing device before authorization occurs. The data is prepared and secured in advance with encryption, and only decrypted and printed after proper authentication. This allows the system to maintain printing control while reducing unauthorized access risk through pre-implementation of security measures.
Solution Approach 2:
The patent implements preliminary anti-action through intruder detection mechanisms that monitor for unauthorized access attempts. When suspicious activity or failed authentication attempts are detected, the system proactively deletes the locked print data from the printing device before an actual breach can occur. This preventive approach counteracts potential unauthorized access before it can compromise the stored sensitive information.
2Reliability
If authentication verification is implemented, then access security is improved, but system complexity increases
Solution Approach 1:
The patent applies self-service by implementing authentication mechanisms that allow users to independently verify their own identities and authorize their own printing operations. The system provides self-contained authentication capabilities at the printing device, allowing users to authenticate themselves without requiring complex external verification systems. This reduces overall system complexity while maintaining strong access security through user-owned credentials.
3Reliability
If intruder detection with fail count is implemented, then security against unauthorized access is enhanced, but data loss risk increases
Solution Approach 1:
The patent applies parameter changes by implementing a configurable fail count threshold that determines when intruder detection triggers data deletion. The system allows adjustment of this parameter to balance security against data loss risk - setting higher thresholds reduces false positives and data loss from legitimate user errors, while maintaining security against determined intruders. This parametric approach enables optimization of the security-data loss tradeoff based on specific organizational needs.
Data Source
AI summary
A printing device includes a user interface, a print module and a locked print module. The locked print module is configured to examine a plurality of print data received by the printing device to determine whether locked printing is specified for any electronic documents contained in the plurality of print data. If locked printing is specified for any of the electronic documents contained in the plurality of print data, then the corresponding print data is stored on the printing device and not processed for printing. The locked print module is further configured to verify password data with respect to user identification data. If the password data is not successfully verified with respect to the user identification data, then the locked print module causes print data that is both stored on the printing device and associated with the user identification data to be deleted from the printing device.