본 논문에서는 산업 애플리케이션을 위한 5G Non-Public Network에서의 보안 이슈를 다룬다. 일반 대중에게 모바일 네트워크 서비스를 제공하는 공공 네트워크와는 달리, 5G Non-Public Network는명확하게 정의된 사용자 조직이나 조직들의 그룹에게 5G 네트워크 서비스를 제공하며, 캠퍼스나 공장과 같이 사용자 조직이 지정한 영역 내에 구축된다. 본 논문의 주목적은 5G-ACIA (5G Alliance for Connected Industries and Automation)에서 제안한 네 가지 구축 모델에 따라 5G Non-Public Network가 이산 산업 및 공정 산업을 위하여 구축될 경우 고려되어야 할 보안 위협 및 잠재적 보안요구사항을 도출하는 것이다. 본 논문의 범위를 명확하게 하기 위해 먼저 5G Non-Public Network에적용할 보안 툴박스를 심층 방어 개념으로 표현한다. 일반적인 5G 이동통신 서비스와 관련된 보안이슈는 본 논문의 범위에 포함되지 않는다. 그 다음, 산업 도메인에 5G-ACIA의 구축 모델을 적용할때 고려해야 할 보안 이슈를 도출한다. 도출된 보안 이슈들은 세 가지 범주로 나뉘며 각각의 보안이슈들은 개요, 보안 위협 및 잠재적 보안 요구사항의 순서로 서술된다.
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