• Convergence Security Journal
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• v.2 no.1
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• pp.69-76
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• 2002

Becoming Internet is public, various services using Web are created. Internet auction is not exceptional but make rapid progress. Internet auction system damages user because its security is not perfect and faultless. In this paper, we propose a design of internet auction system providing more secure and convenient environment.

• Informatization Policy
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• v.24 no.2
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• pp.20-42
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• 2017

In this paper, we focus on classification of security threats and definitions of security requirements for Internet banking service. Threats are classified based on the past and potential incidents, based upon which we will be able to propose security requirements. In order to identify security threats, the structure of the Internet banking service is classified into three sections - the financial institutions, the network, and the user-terminal - and we defined arising threats for each section. We focused the analysis especially on the user-terminal section, which is relatively vulnerable, causing difficulties in securing stability of the service as a whole. The analyzed security threats are expected to serve the foundation for safe configuration of various Internet banking services.

• International Journal of Computer Science & Network Security
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• v.21 no.1
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• pp.107-118
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• 2021

The term Internet of Things (IoTs) refers to the future where things are known daily through the Internet, whether in one way or another, as it is done by the method of collecting various information from various sensors to form a huge network through which people, things and machines are helped to make a link between them at all time and anywhere. The IoTs is everywhere around us such as connected appliances, smart homes security systems and wearable health monitors. However, the question is what if there is a malfunction or outside interference that affects the work of these IoTs based devises? This is the reason of the spread of security causes great concern with the widespread availability of the Internet and Internet devices that are subject to many attacks. Since there aren't many studies that combines requirements, mechanisms, and the attacks of the IoTs, this paper which explores recent published studies between 2017 and 2020 considering different security approaches of protection related to the authentication, integrity, availability and confidentiality Additionally, the paper addresses the different types of attacks in IoTs. We have also addressed the different approaches aim to prevention mechanisms according to several researchers' conclusions and recommendations.

• Convergence Security Journal
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• v.6 no.4
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• pp.59-66
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• 2006

There is a tendency that next-generation tactical information network for the military has been developed from tactical environment based on commercial Internet technology to Tactical Internet(TI) of which purpose is providing various informations such as data, voice and image. On the other side, with an introduction of commercial information communication technology onto Tactical Internet had progressed rapidly on the basis of U.S. Army, threats and attack patterns against Tactical Internet have changed into various types gradually. In this paper, we will examine security factors and technologies to be considered in case of accepting Tactical Internet as a next-generation tactical information network, and discuss its countermeasures with those technologies for a basis.

• The Journal of Society for e-Business Studies
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• v.25 no.1
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• pp.45-64
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• 2020

In the rapidly changing business environments, Internet companies have the characteristics of organizational culture that emphasize the flexible, open and autonomous nature of organizational culture, and are transforming into flexible smart working environment that is independent of time and place. Despite such an Internet business environment, the security management system still fails to reflect the business environment and organizational culture of the Internet company, and the control-focused security management system in the Internet company is facing limitations. Therefore, this study designed and developed Corporate members' autonomy-centered security items that considering the characteristics of the business environment and organizational culture of the Internet company. The results of this study are expected to be used to implement and operate corporate members' autonomy-centered security management system in internet companies with an agile business environment and an autonomous organizational culture.

• 제어로봇시스템학회:학술대회논문집
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• 2003.10a
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• pp.2174-2177
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• 2003

Internet is exposed to network attacks as Internet has a security weakness. Network attacks which are virus, system intrusion, and deny of service, put Internet in the risk of hacking, so the damage of public organization and banking facilities are more increased. So, it is necessary that the security technologies about intrusion detection and controlling attacks minimize the damage of hacking. Router is the network device of managing traffic between Internets or Intranets. The damage of router attack causes the problem of the entire network. The security technology about router is necessary to defend Internet against network attacks. Router has the need of access control and security skills that prevent from illegal attacks. We developed integrated security management framework for secure networking and kernel-level security engine that filters the network packets, detects the network intrusion, and reports the network intrusion. The security engine on the router protects router or gateway from the network attacks and provides secure networking environments. It manages the network with security policy and handles the network attacks dynamically.

• Proceedings of the Korea Information Processing Society Conference
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• 2015.10a
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• pp.646-647
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• 2015

정보통신의 발달로 개인의 모바일 기기를 업무에 활용하는 BYOD(Bring Your Own Device) 시대가 도래 하면서 기업들은 기밀정보 유출 방지, 접근 제어 및 효율적인 자원 관리를 위해 다양한 시스템을 도입하였다. 하지만 접근제어 정책은 획일화 되어 사용자에게 적용되고 있고, 기기의 잦은 분실과 도난, 낮은 보안성 등으로 인한 보안 위협이 존재하기 때문에 BYOD는 적극적으로 도입되지 못하고 있다. 따라서 개인화된 상황정보 수집을 통하여 유연한 정책 설정 및 비정상 사용자를 탐지 및 통제하는 방법이 필요하다. 본 논문에서는 BYOD 환경에서 발생할 수 있는 비정상 행위를 탐지하기 위해 사용자의 서비스 이용속도 분석하여 비정상 행위를 탐지하는 방안에 대해 논의한다.

• Proceedings of the Korea Information Processing Society Conference
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• 2015.10a
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• pp.771-772
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• 2015

사이버 침해사고 정보를 공유하는 체계가 전 세계적으로 확산되고 있는 추세이다. 상호 네트워크 통신을 위하여 필요한 인터넷기반정보와 사이버 침해사고 관련 정보를 획득하기 위한 채널 다양하게 존재하고 공공의 이익을 목적으로 공유되고 있으며 침해정보에 대한 세부적인 분석정보 또한 오픈소스 프로젝트를 통해 손쉽게 획득할 수 있다. 한국인터넷진흥원에서는 공인된 사용자 혹은 기관을 대상으로 침해사고에 활용된 악성정보를 공유하고 있다. 본 논문은 이러한 인터넷기반정와 침해사고와 관련된 연관정보를 활용한 사이버 침해정보 연관 그래프 구축방안에 대하여 논하며 그 활용방안이 어떠한 것이 있는지 제안한다.

• Proceedings of the Korea Information Processing Society Conference
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• 2015.10a
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• pp.872-874
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• 2015

최근 침해사고는 특정 목적을 지닌 공격자들은 자신의 목적을 달성하기 위해 공격을 지속적으로 감행하는 특징을 보인다. 하지만, 기존에 진행된 악성코드 감염 호스트 분석, 네트워크 행위기반 분석 등의 단일 침해사고에 대한 분석은 다른 침해사고와의 관계를 유기적으로 연결하지 못하기 때문에, 타 침해사고와의 연관성 분석, 동일 공격자의 특성 파악을 통한 표적형 공격 및 향후 공격예측을 지원하지 못한다는 단점이 있다. 본 논문에서는 이러한 문제점을 해결하기 위해서, 상용에서 서비스되고 있는 사이버 위협정보 공유 시스템의 정보를 기반으로 이와 연관된 정보의 이력 및 유사관계를 관리하여 침해사고간의 연관성을 파악하는 방법을 제시한다.

• Proceedings of the Korea Information Processing Society Conference
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• 2010.11a
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• pp.1285-1288
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• 2010

SIP 프로토콜은 멀티미디어 통신 세션을 생성, 삭제, 변경할 수 있는 프로토콜로 높은 간결성, 확장성 등 장점을 가지고 있다. 최근 인터넷전화의 대부분이 SIP 프로토콜을 사용하는 등 SIP 프로토콜의 사용이 많이 보편화 되었으나 그만큼 보안에 대한 위협 또한 중요한 문제가 되고있다. SIP는 응용계층 프로토콜로, 기존의 IP기반 보안 기술로는 공격 탐지/차단에 한계가 있을 수 있어 SIP 전용의 보안 기술 및 장비의 개발이 필요하다. 본 논문에서는 SIP 트래픽의 응용계층 정보 통계를 통하여 DDoS 공격트래픽 행위 특성을 분석하고 이를 정상 트래픽과 구분, 탐지하는 탐지 기법을 제안한다. 제안된 기법은 자체 테스트 망 구축과 SIP DDoS 공격 에뮬레이션을 통해 검증한다.