Authentication Information Management for Multifunction Peripheral Security
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Solution Overview
Problem
Existing systems with multifunction peripherals (MFPs) connected to servers lack sufficient ingenuity in authentication mechanisms, leading to potential security and convenience issues.
Innovation Solution
A device with a communication interface and a controller that receives device identification and connection information from an intermediary server, connects to a target server, and performs authentication processes based on received authentication information, deciding whether to update or reuse this information based on specific conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the update process of authentication information is always performed, then security is improved, but convenience deteriorates
Solution Approach 1:
The system dynamically adjusts the authentication information management strategy based on the connection state. When a device connects to a target server for the first time, the system performs an update process to generate new authentication information, enhancing security. When the device connects again, the system reuses the existing authentication information, maintaining convenience. This dynamic switching between update and reuse modes resolves the contradiction between security and convenience.
2Ease of operation
If the update process of authentication information is never performed, then convenience is improved, but security deteriorates
Solution Approach 1:
The system performs the update process of authentication information in advance during the first connection to the target server. This preliminary action ensures that fresh authentication information is established before the device needs to connect again. By preparing the authentication information update beforehand, the system maintains both security (through initial update) and convenience (through subsequent reuse without repeated updates).
Data Source
AI summary
A controller of a device is configured to receive, via a communication interface, device identification information indicating the device and connection information for connecting to a target server from an intermediary server; connect, via the communication interface, to the target server by using the connection information; after connecting to the target server, perform a particular process including communication with the target server, the particular process including: receiving, via the communication interface, authentication information from the target server; verifying whether the authentication information is authentic; in response to determining that the authentication information is authentic and that a particular condition is satisfied, performing a post-authentication process without performing an update process of updating the authentication information; and in response to determining that the authentication information is authentic and that the particular condition is not satisfied, performing the update process and the post-authentication process.