• The Journal of Society for e-Business Studies
• /
• v.16 no.2
• /
• pp.129-142
• /
• 2011

Traditionally research in Service Oriented Architecture(SOA) security has focused primarily on exploiting standards and solutions separately. There exists no unified methodology for SOA security to manage risks at the enterprise level. It needs to analyze preliminarily security threats and to manage enterprise risks by identifying vulnerabilities of SOA. In this paper, we propose a metric-based vulnerability assessment method using dynamic properties of services in SOA. The method is to assess vulnerability at the architecture level as well as the service level by measuring run-time dependency between services. The run-time dependency between services is an important characteristic to understand which services are affected by a vulnerable service. All services which directly or indirectly depend on the vulnerable service are exposed to the risk. Thus run-time dependency is a good indicator of vulnerability of SOA.

• Journal of Korea Society of Industrial Information Systems
• /
• v.8 no.1
• /
• pp.62-74
• /
• 2003

Information security becomes a critical attribute to corporate information systems as increased strategic an operational reliance on information systems. Current proliferation of password requires more attention on information security because its nature of external connection with password user makes information systems more vulnerable from various threats are an important element of information systems management. This study focused on two issues : (1) the relationships between risk management factors(asset, threat, vulnerability) and risk level affected by threat, (2) the relationships between risk level and key password characteristics(length, composition, lifetime, selection method).

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

• The KIPS Transactions:PartC
• /
• v.8C no.5
• /
• pp.565-572
• /
• 2001

Recently, due to the open architecture of the internet and wide spread of internet users, the cyber terror threatens to the network\`s weak point are tending grow. Until now, information security solutions are passive on security host and particular security system. This passive information security solution is weak from the attacks through the networks connected worldwide internet systems, and has limitation on the defense against cyber terror attacks. Therefore, network level integrated security function must be provided. In this paper, we consider technology limitations on the information security problems and its environment. Then we present the architecture and functions of policy-based information security services for network level active information security function. This paper also includes design of target system, which provide information security services. Finally, we discuss network level system deployment direction and discuss with Network Security Simulation.

• Proceedings of the Korea Information Processing Society Conference
• /
• 2016.10a
• /
• pp.281-282
• /
• 2016

최근 사물인터넷(IoT)이 도래함에 따라 IT 산업을 중심으로 소프트웨어의 활용 용도가 컴퓨터 뿐 아니라, 의료, 교육, 금융, 자동차, 에너지 등 다양한 분야에서 활용되고 있다. 이처럼 소프트웨어 활용 분야가 본격적으로 확산됨에 따라 소프트웨어 보안 취약점을 이용한 공격위험 또한 증가하고 있으며, 이에 따라 시큐어코딩의 중요성이 부각되고 있다. 본 논문에서는 기존 시큐어코딩 관리 시스템 환경에서 효율적인 시큐어코딩 관리를 위해 운영서버와 Program Server를 이용한 시큐어코딩 관리 시스템 향상 방안을 제안한다. 제안하는 시스템을 시큐어코딩 프로그램에 적용한다면, 시큐어코딩 프로그램 성능향상과 효율적인 시큐어코딩 시스템 관리에 도움이 될 것으로 기대된다.

• Journal of Information Technology and Architecture
• /
• v.9 no.4
• /
• pp.401-411
• /
• 2012

There has been increased interest for cloud computing services that can promote cost savings while increasing investment in information resources. Cloud computing, however, has a disadvantage physically located in the external information resources to take advantage of the economic benefits, the advantages and increase the vulnerability of information protection and control of information assets. In this study, due to the unique properties of the new services, including vulnerability, the vulnerability of cloud computing derive the vulnerability of cloud computing and control items were derived through the mapping between vulnerability and control items, that are not being managed to identify vulnerabilities Cloud computing risk factors are presented.

• Proceedings of the Korean Institute of Navigation and Port Research Conference
• /
• 2023.11a
• /
• pp.95-97
• /
• 2023

자율운항선박(MASS)의 원격제어기술은 원격지에서 MASS를 원격제어자에 의해서 제어하기 위한 기술이다. 2023년도 현재 원격제어시스템의 통합구성이 완료되었고, 하반기부터는 해상실험을 통한 시스템 검증작업을 진행할 예정이다. 이러한 시스템 검증 이후에는 원격제어 시 발생할 수 있는 다양한 문제에 적극 대응할 수 있는 위기관리 기술의 개발이 필요하다. 현재 식별된 위기는 통신 두절에 따른 제어 불능, 간헐적 통신 불능에 따른 데이터 손실, 대용량 데이터 전송에 따른 제어명령과 제어응답 사이의 지연에 의한 선박조종의 어려움, 원격제어자의 인적오류에 의한 예상하지 못한 해양사고발생 가능성 등이다. 본 연구의 목적은 4가지 주요 요소(선박, 통신, 제어시스템, 원격 제어자)로 구성된 원격제어 시스템에서 발생 가능한 다양한 위기를 적극 억제할 수 있는 기법개발을 고찰하여 향후 원격제어기술 연구에 적용하기 위한 것이다. 특히, 통신 두절로 인한 암흑시간(blind time) 동안 원격제어 불능을 해결할 수 있는 위기대응 방법, 과도한 데이터 전송지연에 따른 위험수준 평가와 가시화 방법 등을 논의한다. 본 연구는 자율운항선박의 원격제어를 안전하게 지속가능한 상태에서 운영할 수 있는 기법의 적용할 수 있을 것으로 기대된다.

• Journal of Advanced Navigation Technology
• /
• v.18 no.4
• /
• pp.353-358
• /
• 2014

In the past, security on control system was guaranteed by isolation of control system networks from external networks. However as devices of the control systems became more various and interaction between the devices became necessary, effective management system for such network emerged and this triggered connection between control system networks and external system networks. This made management of control system easier but also made control system exposed to various cyber attack threats, Therefore researches on appending security measures on each protocols are in progress. This paper focused on DNP(distributed network protocol)3 protocol which is used for communication between control center and substations. It describes characteristics of DNP3 protocol and research on adding security elements to the protocol. It also analyzed known vulnerabilities of DNP3 protocol and proposed data mining methodology for detecting such vulnerabilities.

• Journal of the Korea Institute of Information and Communication Engineering
• /
• v.19 no.8
• /
• pp.1797-1804
• /
• 2015

Integrated log management system can help to predict the risk of security and contributes to improve the security level of the organization, and leads to prepare an appropriate security policy. In this paper, we have designed and implemented a Hadoop-based log analysis system by using distributed database model which can store large amount of data and reduce analysis time by automating log collecting procedure. In the proposed system, we use the HBase in order to store a large amount of data efficiently in the scale-out fashion and propose an easy data storing scheme for analysing data using a Hadoop-based normal expression, which results in improving data processing speed compared to the existing system.

• Journal of the Korea Computer Industry Society
• /
• v.2 no.11
• /
• pp.1383-1394
• /
• 2001

Through the extension of damages caused by hacking and computer virus, although security control has been emphasized, hackers' capability exceeded the security controllability. The basic security setup of server system will be free from the damages by primary and intermediate level which are the major group. It should be noted that security condition of most middle-sized and personal systems is widely open for hacker's intrusion. There is no perfect information system either software-wise or hardware-wise. It has to be recognized that our systems will be attacked easily by the hackers and computer virus. Computer users are demanded to be prepared for these types of surprise attacks. In this paper, I will propose a formation of Bastion server. This will protect risks from inside & outside intrusion which have been known till today.