Printer Authentication Memory Segmentation for Controlled Access
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Solution Overview
Problem
Current printer technologies cannot restrict the combinations of ID numbers and biometrics data stored during the preparation process, leading to uncontrolled access to specific functions.
Innovation Solution
A function performing apparatus with a processor and memory that receives authentication information from a portable device, determines registration based on administrator-designated conditions, and changes its state from non-permission to permission mode upon valid authentication, allowing restricted access to specific functions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If authentication information is freely registered during preparation process, then ease of operation is improved, but security and control of function access deteriorates
Solution Approach 1:
The system performs preliminary registration of authentication information during a preparation process before actual function usage. The portable device's authentication information is registered in advance in the authentication memory, and the correspondence between portable device IDs and authentication information is stored in advance in the storage unit, enabling controlled access later without requiring registration at the moment of use.
Solution Approach 2:
The system dynamically changes the state of function access based on authentication verification. When authentication information matching the portable device ID is found in the authentication memory, the system transitions from a non-permission state to a permission state, allowing the function to be executed. This dynamic state change enables flexible control between ease of use and security.
2Reliability
If authentication information is restricted based on administrator conditions, then access control is improved, but device complexity increases
Solution Approach 1:
The system segments authentication control into two independent parts: authentication memory for storing authentication information and storage unit for storing the correspondence between portable device IDs and authentication information. This segmentation allows the administrator to set registration conditions independently while maintaining a relatively simple overall structure.
Solution Approach 2:
The system uses an intermediary mechanism where the processor compares the portable device ID with stored correspondence data and verifies authentication information against the authentication memory. This intermediary verification process enables controlled access without requiring complex administrative intervention during each authentication event.
3Adaptability or versatility
If multiple authentication methods are supported, then adaptability is improved, but difficulty of detecting and measuring increases
Solution Approach 1:
The system provides universal authentication capability by supporting multiple authentication methods including portable IC terminals and other portable devices. The authentication memory and storage unit work together to verify different types of authentication information, allowing the system to adapt to various authentication scenarios while maintaining a unified verification process through the processor.
Data Source
AI summary
A function performing apparatus includes a function performing unit, an operation unit, a processor and memory. The function performing apparatus receives a first instruction from a portable device, determines whether first authentication information is to be registered in an authentication memory, registers the first authentication information in authentication the memory, transmits the first authentication information, receives a second instruction including the first authentication information from the portable device, changes a state of the function performing apparatus from a non-permission state to a permission state if the second instruction is received while the first authentication information is registered in the authentication memory and changes the state from the non-permission state to the permission state if second authentication information is input to the function performing apparatus by the operation unit while the second authentication information is registered in the authentication memory.