A Proposal for a Zero-Trust-Based Multi-Level Security Model and Its Security Controls

The rapid advancement of technology and increasing data utilisation have underscored the need for new models to manage and secure big data effectively. However, the constraints of isolated network environments and the limitations of existing security frameworks hinder the adoption of cutting-edge te...

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Main Authors: Jun-Hyung Park, Sung-Chae Park, Heung-Youl Youm
Format: Article
Language:English
Published: MDPI AG 2025-01-01
Series:Applied Sciences
Subjects:
Online Access:https://www.mdpi.com/2076-3417/15/2/785
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author Jun-Hyung Park
Sung-Chae Park
Heung-Youl Youm
author_facet Jun-Hyung Park
Sung-Chae Park
Heung-Youl Youm
author_sort Jun-Hyung Park
collection DOAJ
description The rapid advancement of technology and increasing data utilisation have underscored the need for new models to manage and secure big data effectively. However, the constraints of isolated network environments and the limitations of existing security frameworks hinder the adoption of cutting-edge technologies such as AI and cloud computing, as well as the safe utilisation of data. To address these challenges, this study proposes an enhanced security model that integrates the concepts of Multi-Level Security (MLS) and Zero Trust (ZT). The proposed model classifies data into the following three sensitivity levels: “Classified”, “Sensitive”, and “Open”. It applies tailored security requirements and dynamic controls to each level, enhancing both data security and usability. Furthermore, the model overcomes the static access control limitations of MLS by incorporating ZT’s automated dynamic access capabilities, significantly improving responsiveness to anomalous behaviours. This study contributes to the design and evaluation of a new security model that ensures secure data protection and utilisation, even in isolated network environments such as those of military and governmental organisations. It also provides a foundation for the future development of advanced security frameworks.
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spelling doaj-art-3c694089f9614d7c8fe9a47eaffe95172025-01-24T13:20:49ZengMDPI AGApplied Sciences2076-34172025-01-0115278510.3390/app15020785A Proposal for a Zero-Trust-Based Multi-Level Security Model and Its Security ControlsJun-Hyung Park0Sung-Chae Park1Heung-Youl Youm2Department of Information Security Engineering, Soonchunhyang University, Asan 31538, Republic of KoreaDepartment of Information Security Engineering, Soonchunhyang University, Asan 31538, Republic of KoreaDepartment of Information Security Engineering, Soonchunhyang University, Asan 31538, Republic of KoreaThe rapid advancement of technology and increasing data utilisation have underscored the need for new models to manage and secure big data effectively. However, the constraints of isolated network environments and the limitations of existing security frameworks hinder the adoption of cutting-edge technologies such as AI and cloud computing, as well as the safe utilisation of data. To address these challenges, this study proposes an enhanced security model that integrates the concepts of Multi-Level Security (MLS) and Zero Trust (ZT). The proposed model classifies data into the following three sensitivity levels: “Classified”, “Sensitive”, and “Open”. It applies tailored security requirements and dynamic controls to each level, enhancing both data security and usability. Furthermore, the model overcomes the static access control limitations of MLS by incorporating ZT’s automated dynamic access capabilities, significantly improving responsiveness to anomalous behaviours. This study contributes to the design and evaluation of a new security model that ensures secure data protection and utilisation, even in isolated network environments such as those of military and governmental organisations. It also provides a foundation for the future development of advanced security frameworks.https://www.mdpi.com/2076-3417/15/2/785cybersecurityzero trustmulti-level securitysecurity modelsecurity strategysecurity control
spellingShingle Jun-Hyung Park
Sung-Chae Park
Heung-Youl Youm
A Proposal for a Zero-Trust-Based Multi-Level Security Model and Its Security Controls
Applied Sciences
cybersecurity
zero trust
multi-level security
security model
security strategy
security control
title A Proposal for a Zero-Trust-Based Multi-Level Security Model and Its Security Controls
title_full A Proposal for a Zero-Trust-Based Multi-Level Security Model and Its Security Controls
title_fullStr A Proposal for a Zero-Trust-Based Multi-Level Security Model and Its Security Controls
title_full_unstemmed A Proposal for a Zero-Trust-Based Multi-Level Security Model and Its Security Controls
title_short A Proposal for a Zero-Trust-Based Multi-Level Security Model and Its Security Controls
title_sort proposal for a zero trust based multi level security model and its security controls
topic cybersecurity
zero trust
multi-level security
security model
security strategy
security control
url https://www.mdpi.com/2076-3417/15/2/785
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