Security Measure Determination Device for OT Systems
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Solution Overview
Problem
Existing security measure determination technologies struggle to effectively implement security measures that comply with security regulations while considering the unique constraint conditions of components in OT systems, leading to increased time and cost.
Innovation Solution
A security measure determination device that includes a processor and memory, holding rule information, constraint condition information, and measure plan information. The device associates security requirements with measure plans, selects plans that satisfy both requirements and constraint conditions, and generates data for displaying the selected measures.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If security measures are implemented to comply with security regulations, then security compliance is improved, but implementation time and cost increase
Solution Approach 1:
The system performs preliminary analysis by automatically extracting security requirements from regulation texts and pre-defining measure plans with their constraint conditions before actual security implementation. This advance preparation reduces the time needed during actual compliance implementation by having the analysis framework ready in advance.
Solution Approach 2:
The system introduces an intermediary automated analysis system that acts as a mediator between security regulations and implementation measures. This intermediary automatically extracts requirements, defines measures, and determines compliance, eliminating the need for manual analysis and reducing implementation time while maintaining compliance accuracy.
2Reliability
If security measures are implemented to comply with security regulations, then security compliance is improved, but implementation cost increases
Solution Approach 1:
The system enables self-service by automatically extracting security requirements from regulation texts and autonomously defining measure plans without requiring extensive manual expert analysis. This automation reduces implementation costs by eliminating or reducing the need for expensive manual security expertise while maintaining compliance quality.
Solution Approach 2:
The automated analysis system serves as an cost-effective intermediary that bridges security regulations and implementation measures, replacing expensive manual analysis processes with automated text processing and rule-based determination, thereby reducing implementation costs while maintaining compliance accuracy.
3Manufacturing precision
If measure plans are selected based on multiple constraint conditions, then constraint satisfaction is improved, but determination complexity increases
Solution Approach 1:
The system segments the complex determination process into distinct automated steps: extracting security requirements from texts, defining measure plans with associated constraint conditions, and automatically determining compliance. This segmentation manages complexity by breaking down the overall task into manageable automated sub-tasks that can be processed systematically.
Solution Approach 2:
The system incorporates feedback mechanisms where the automated analysis evaluates whether selected measure plans satisfy the extracted constraint conditions, and adjusts selections accordingly. This feedback loop ensures constraint satisfaction while managing determination complexity through systematic evaluation rather than trial-and-error approaches.
Data Source
AI summary
A security measure determination device holds: rule information indicating a requirement that is required, in a rule concerning security, of a component included in a subject system; constraint condition information indicating a plurality of constraint conditions about specifications of the component; and measure plan information indicating measure plans that satisfy the requirement and constraint conditions required to be satisfied in order to implement the measure plans, associates the requirement indicated by the rule information with the measure plans indicated by the measure plan information as measure plans that satisfy the requirement, selects, based on the constraint conditions that are indicated by the measure plan information of the measure plans associated with the requirement, and the plurality of constraint conditions that are indicated by the constraint condition information, a measure plan from the measure plans associated with the requirement; and displays the selected measure plan.