• Proceedings of the Korea Information Processing Society Conference
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• 2018.05a
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• pp.149-152
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• 2018

최근 국가기반시설을 제어하고 관리하는 산업제어시스템에 대한 사이버보안 위협이 증가함에 따라 보안의 중요성이 증가하고 있다. 산업제어시스템에서의 보안 기술은 일반적인 IT 시스템의 보안 기술과는 많은 차이가 있다. 산업제어시스템과 IT 시스템은 인간이 컴퓨터 시스템을 통해 정보를 처리하는 것은 같지만 IT 시스템은 정보 처리의 효율성을 위해 시스템을 사용하는 반면, 산업제어 시스템은 시스템의 효율성을 위해 정보를 처리하는 부분으로 이에 알맞은 새로운 보안 체계 구성이 필요하다. 초기에는 폐쇄망 위주로 구성되었던 산업제어시스템에서 ICT(Information & Communication Technology) 발전으로 외부로부터의 사이버 위협이 가중되었다. 편리성과 효율성이 증대된 만큼 ICT의 취약점 또한 산업제어시스템에서 문제가 발생하고 있지만, 현재 산업제어시스템의 보안 기술에 대해서는 국내에 널리 알려지지 않고 있다. 본 논문에서는 산업제어시스템 및 보안정책에 대해 논의한다. 관련 보안사고의 사례 및 보안 기술을 살펴봄으로써 미래 산업제어시스템의 발전과 보안 공격에 대한 충분한 보안체계를 구축하여 종합적이고, 적합한 보안 대책을 마련하는 것에 도움이 될 것이다.

• Journal of Advanced Navigation Technology
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• v.17 no.4
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• pp.442-448
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• 2013

I&C (Instrumentation & Control) system is different from information system and the security design of the two systems are also different. The modeling activity is needed based on the security control guide in order to build I&C system security control. In this paper, the role and by the security control, we designed the relationship (that is, the relation schema) between the documents for 'The system for supporting the cyber security control of I&C system design' based on the security control guide. The designed schema plans 'The system for supporting the cyber security control of I&C system' for observing the security control guide, and is used as the database and content that supports its design and implementation. The process and system of the proposed schema is utilized and designed. The design of the schema and system is intensified in the design phase with the proposed mode and supporting the I&C system cyber security design.

• Proceedings of the Korea Information Processing Society Conference
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• 2003.11c
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• pp.1815-1818
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• 2003

인터넷 사용의 급증으로 통신망 관리와 정보보호 시스템에 대한 연구 개발이 급속히 이루어지고 있으며, 정보보호를 위한 시스템이 개별적으로, 구축하고 있다. 구축된 정보보호 시스템은 사설망과 WAN에서 독립적인 시스템으로 운영관리 되고 있는바, 사설망과 공중망 간의 통합적인 정보보호 관련 정보공유의 부재 및 상호 호환성이 없는 실정으로 사이버 테러와 효율적인 정보보호 관리에 능동적인 대처를 하지 못하고 있다. 본 논문에서는 정책 기반의 방화벽, IDS, 라우터 등의 정보보호 시스템에서 보안정책 정보를 공유하여, 보안 시스템을 손쉽게 제어관리 가능한 보안정책 정보모델을 제시하였으며, UML를 사용하여 보안정책 객체들 간의 접속과 정보공유 모델을 확인하였다.

• Journal of Internet Computing and Services
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• v.25 no.1
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• pp.123-136
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• 2024

The U.S. Department of Defense, leading global cybersecurity policies, has two main cybersecurity frameworks: the Cybersecurity Maturity Model Certification (CMMC) for external defense industry certification, and the Risk Management Framework (RMF) for internal organizational security assessments. For Republic of Korea military, starting from 2026, the Korean version of RMF (K-RMF) will be fully implemented. Domestic defense industry companies participating in projects commissioned by the U.S. Department of Defense must obtain CMMC certification by October 2025. In this paper, a new standard compliance meta-model (R3C) development methodology that can simultaneously support CMMC and RMF security audit readiness tasks is introduced, along with the implementation results of a compliance solution based on the R3C meta-model. This research is based on practical experience with the U.S. Department of Defense's cybersecurity regulations gained during the joint project by the South Korean and U.S. defense ministries' joint chiefs of staff since 2022. The developed compliance solution functions are being utilized in joint South Korean-U.S. military exercises. The compliance solution developed through this research is expected to be available for sale in the private sector and is anticipated to be highly valuable for domestic defense industry companies that need immediate CMMC certification.

• Review of KIISC
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• v.32 no.3
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• pp.11-18
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• 2022

COVID-19로 인해 증가된 사이버 활동과 함께 랜섬웨어 공격으로 인한 피해사례도 증가하였다. 랜섬웨어 공격자들은 2021년 새로 발견된 취약점을 악용하고, 기업을 대상으로 공격하여 2차 피해를 야기하였다. 세계 각국에서는 이러한 피해를 줄이기 위해 랜섬웨어 대응을 위한 정책을 발표하였다. 본 논문에서는 2021년 큰 피해를 유발한 주요 랜섬웨어 공격을 정리한다. 관련된 2021년과 2022년 상반기까지 발표된 랜섬웨어 대응 정책을 조사하고 공통된 특징점을 찾아 4가지 유형으로 분류한다. 각 유형별로 최근 세계 정부 및 기관에서 제시하는 랜섬웨어 대응 동향에 대해 살펴본다.

• Journal of the Korea Institute of Information Security & Cryptology
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• v.32 no.2
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• pp.309-327
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• 2022

As ICT convergence is progressing in all industrial fields and creating the global ecosystem of the supply chain is accelerating, supply chain risk related with cyber area are also increasing. In particular. the supply chain of ICT products is very complex in terms of technical and environmental factors to be managed, so it is vert difficult to transparently manage the entire life cycle. Accordingly, the US, UK, and EU, etc. are conducting and establishing cyber supply chainsecurity-related research and policies for ICT product supply chains. Korea also has the plan to establish management system to secure the supply chain of major ICT equipment as a task in the basic plan of the national cybersecurity strategy announced in 2019, but there is no concrete policy yet. So, In this paper, we review the cyber supply chain security management system in the United States and present a supplementary way to the National Information Security Manual in Korea from the perspective of cyber supply chain security. It is expected that this will serve as a reference material for cyber supply chain measures that can be introduced in domestic information security field.

• Korean Security Journal
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• no.51
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• pp.173-195
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• 2017

Recently, in South Korea, security management has been strengthened, but there have been an increasing number of cases where the main infrastructure of the country is hacked in the cyber space. South Korea is equipped with sophisticated information and communication technologies, such as Internet, but is threatened by cyber terrorism of North Korea and terrorist organizations. Nevertheless, there is a limit to how to develop a policy and strategic plan for the country, which is related to domestic terrorism and lacks legal and regulatory facilities, and therefore, in this study, proposed suggestions for building adaptive and efficient policy formulation. Based on the theoretical analysis framework of the Strategic Plan for achieving the objectives of the research, we compared the UK 's security strategy with the national security policy of the domestic government. As a result, several problems were derived: First, the domestic security strategy did not take into account the external environment. Secondly, lack of coordination with domestic cyber security goals setting and strategy is causing ambiguity and confusion. Third, the detailed plan of implementation of national security in each province is designed to ensure that there is a possibility that a mixed side effect between ministries and agencies will arise. Fourth, it was found that there was a limit to prepare the evaluation standards for the evaluation and return of domestic security policies in the country. Therefore, in order to establish a policy for the response of domestic cyber terrorism, we set up a vision from long-term perspectives and concrete targets based on the strategic approach of the security policy, It is necessary to present an assignment and formulate an efficient execution plan. It is necessary to maintain and improve the domestic safeguards in order to be able to complement the problems through evaluation and feedback.

• Convergence Security Journal
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• v.20 no.5
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• pp.19-26
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• 2020

The purpose of this paper is to ccompare and analyze North Korean cyber attacks and our responses by government, from the Roh Moo-hyun administration to the Moon Jae-in administration. The current conflict of interests on the Korean peninsula, such as the United States, China, and Russia, is leading to a conflict for the leadership of a new world order in cyberspace. Cyber attacks are accelerating and threats are rising. Cyber threats exhibit several characteristics. Above all, it is difficult to identify or track the subject of the threat. Also, with the development of information and communication technology, attack technology has become more intelligent, and it is not easy to prepare a means to respond. Therefore, it is necessary to improve continuous and preemptive response capacity for national cybersecurity, and to establish governance among various actors, such as international cooperation between countries or private experts.

• Convergence Security Journal
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• v.17 no.2
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• pp.145-151
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• 2017

The Cyberspace of the Republic of Korea Army is continuously threatened by enemies. Means for responding to such cyber threats are ultimately Military information security professional personnel. Currently, however, there are only a handful of advanced information security professional persons in Republic of Korea Army, and a lack of systematic training is inadequate. Therefore, in this thesis, we surveyed the information security professional human resource policies of USA, UK, Israel, and Japan. In addition, the policy to train professional human resources specialized in defense cyber security, we proposed training of specialist talent of 4 steps and medium and long term plan, step-by-step training system sizing, introduction of certification system.

• Proceedings of the Korea Information Processing Society Conference
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• 2015.04a
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• pp.456-459
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• 2015

인터넷 활용이 다양해짐에 따라서, 사이버 상의 특정 조직에 대한 표적공격에서부터 불특정 다수에 대한 공격까지 불법적인 경로를 통해 목적을 달성하거나 금전적인 이득을 취하기 위한 사이버 공격기법은 갈수록 그 경로가 다양해지고 치밀해지고 있다. 스마트폰의 등장과 함께 휴대용 기기의 사용은 급증하였고, 휴대성과 편리성은 많은 사람들의 서비스 이용환경을 데스크톱환경에서 이동환경으로 변화되고 있다. 이러한 환경의 변화는 보안위협 경로를 확장시킨다. 지능적이고 다양해진 보안 위협으로부터 조직의 시스템에 대한 통합적 가시성을 확보하는 일은 위협에 대비할 수 있는 방법을 제공할 수 있게 된다. 본 연구에서는 보안위협이 될 수 있는 상황을 탐지하기 위해서 조직의 특성에 맞는 보안정책을 수립하는 방법에 대해 정리하고 이에 따른 보안 관제와 운영을 할 수 있는 시스템 설계 방법을 제안하고자 한다.