Image Forming Apparatus Authentication Application Update Security

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Solution Overview

Problem

Existing image forming apparatuses face security risks when updating applications, particularly those providing authentication functions, as shutting down these applications can disable user authentication, allowing unauthorized access.

Innovation Solution

The system dynamically controls update processing based on the type of application, disabling and inhibiting operations for authentication-type applications during updates to maintain security, while allowing updates for non-authentication applications without user input restrictions.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the update target application is shut down to perform update processing, then the update can be executed, but user authentication is disabled allowing unauthorized access

Engineering Contradiction:
Improveauthentication securityVSAvoidupdate processing
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

A standby authentication application is introduced as an intermediary solution. When the primary authentication application is being updated and shut down, the standby application takes over to maintain authentication security. This mediator approach allows the update to proceed while preventing unauthorized access through the standby application's authentication services.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The system performs preliminary action by activating a standby authentication application before shutting down the primary authentication application for update. This advance preparation ensures that authentication security is already in place before the primary application stops functioning, preventing any security gap during the update process.

Inventive Principle:
Principle #10Preliminary action

2Adaptability or versatility

If update processing is performed on authentication applications, then the application can be updated, but device security is compromised

Engineering Contradiction:
Improveapplication update capabilityVSAvoidunauthorized access risk
Core Design Contradiction:
Adaptability or versatilityVSObject-affected harmful factors

Solution Approach 1:

The standby authentication application serves as a protective intermediary during the update of the primary authentication application. It continues to provide authentication services, thereby mediating between the need to update (adaptability) and the need to maintain security (preventing unauthorized access).

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The system provides beforehand cushioning by having a pre-prepared standby authentication application ready to take over. This cushioning mechanism ensures that even if the primary authentication application is shut down for updates, security is maintained through the standby application, cushioning against the harmful effect of unauthorized access.

Inventive Principle:
Principle #11Beforehand cushioning (Prior cushioning)

3Reliability

If authentication application updates require operator intervention, then security can be monitored, but operational costs and time increase

Engineering Contradiction:
Improvesecurity monitoringVSAvoidupdate processing time
Core Design Contradiction:
ReliabilityVSLoss of time

Solution Approach 1:

The system implements self-service by automatically managing the standby authentication application's activation and the update process. The control unit automatically detects when updates are needed, activates the standby application, and manages the transition without requiring operator intervention. This maintains security monitoring while eliminating the time loss associated with manual operations.

Inventive Principle:
Principle #25Self-service

Data Source

PatentEP3299981B1Image forming apparatus, method for controlling image forming apparatus, and storage medium
Publication Date: 2021.06.16 CANON KK
  • EP3299981B1 patent drawingFigure 1
  • EP3299981B1 patent drawingFigure 2
  • EP3299981B1 patent drawingFigure 3

AI summary

An image forming apparatus to which an application program for extending functions of the image forming apparatus is installed, the image forming apparatus includes an operation unit, at least one processor, when the processor executes instructions, which acts as an update unit configured to, in accordance with reception of an instruction for updating a login application, update the login application, the login application being an application program for authenticating a user who logs in to the image forming apparatus, and a control unit configured to, in accordance with the update unit performing processing for updating the login application, limit operations on the operation unit.