• 한국지능정보시스템학회:학술대회논문집
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• 한국지능정보시스템학회 2001년도 The Pacific Aisan Confrence On Intelligent Systems 2001
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• pp.298-309
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• 2001

This research aims to unravel the significant features of the human immune system, which would be successfully employed for a novel network intrusion detection model. Several salient features of the human immune system, which detects intruding pathogens, are carefully studied and the possibility and the advantages of adopting these features for network intrusion detection are reviewed and assessed.

• 한국정보보호학회:학술대회논문집
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• 한국정보보호학회 2001년도 종합학술발표회논문집
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• pp.147-152
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• 2001

This research aims to unravel the significant features of the human immune system, which would be successfully employed for a novel network intrusion detection model. Several salient features of the human immune system, which detects intruding pathogens, are carefully studied and the possibility and the advantages of adopting these features for network intrusion detection are reviewed and assessed.

• 한국산업정보학회논문지
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• 제12권3호
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• pp.104-115
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• 2007

커널 백도어로부터 공격이 탐지되는 즉시 해킹 피해를 입은 시스템에서 증거 손실을 최소화하고 안전하고 신뢰할 수 있는 증거 보존, 그리고 신속하게 대응하도록 함으로써 시스템 피해를 최소할 수 있는 백업 및 분석시스템을 설계 구현한다. 본 논문에서는 삭제된 로그파일을 복원하고 복원된 파일과 하드디스크의 이미지를 분석하여 해커의 위치를 찾을 수 있다.

• 디지털산업정보학회논문지
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• 제6권4호
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• pp.153-160
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• 2010

MANET composed mobile nodes without central concentration control like base station communicate through multi-hop route among nodes. Accordingly, it is hard to maintain stability of network because topology of network change at any time owing to movement of mobile nodes. MANET has security problems because of node mobility and needs intrusion detection system that can detect attack of malicious nodes. Therefore, system is protected from malicious attack of intruder in this environment and it has to correspond to attack immediately. In this paper, we propose intrusion detection system based on rules in order to more accurate intrusion detection. Cluster head perform role of monitor node to raise monitor efficiency of packet. In order to evaluate performance of proposed method, we used jamming attack, selective forwarding attack, repetition attack.

• 한국정보통신설비학회:학술대회논문집
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• 한국정보통신설비학회 2007년도 학술대회
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• pp.176-180
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• 2007

In this study, we deployed the cable tunnel inspection and monitoring system by wireless sensor network. It is shown that the wireless sensor network which is composed of sensor, wireless communication module, and gateway can be applied to cable tunnel monitoring system. Sensors considered herein are flame detection sensor, flood detection sensor, intruder detection sensor, and temperature sensor, etc. It is also found that the wireless sensor network can deliver sensing data reliably by wireless sensing technology. The gateway system that can transmit sensed data to server by CDMA is developed. Monitoring system is constructed by web service technology, and it is observed that this system can monitor the present state of tunnel without difficulties. The system provides an alternative to inspect and monitor the tunnel efficiently where the conventional wired system is infeasible.

• 한국방재학회:학술대회논문집
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• 한국방재학회 2008년도 정기총회 및 학술발표대회
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• pp.549-552
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• 2008

In this study, we deployed the cable tunnel inspection and monitoring system by wireless sensor network. It is shown that the wireless sensor network which is composed of sensor, wireless communication module, and gateway can be applied to cable tunnel monitoring system. Sensors considered herein are flame detection sensor, flood detection sensor, intruder detection sensor, and temperature sensor, etc. It is also found that the wireless sensor network can deliver sensing data reliably by wireless sensing technology. The gateway system that can transmit sensed data to server by CDMA is developed. Monitoring system is constructed by web service technology, and it is observed that this system can monitor the present state of tunnel without difficulties. The system provides an alternative to inspecting and monitoring the tunnel efficiently where the conventional wired system is infeasible.

• 한국군사과학기술학회지
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• 제14권6호
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• pp.1129-1137
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• 2011

This paper reports on a design of the footstep signal detection system using the seismic sensor. First, we analyzed the characteristics of seismic signal, seismic sensor, and the UGS(Unattended Ground Sensor) system with seismic sensors. In addition, we summarized the existing algorithms to detect footstep using the seismic sensors, and developed our low-power and high efficient footstep detection algorithm. In this paper, the sensor node operations are classified into three different steps and different resources and algorithms are applied to each step, not only to minimize the power consumption, but also to improve the performance.

• International Journal of Computer Science & Network Security
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• 제21권4호
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• pp.272-276
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• 2021

Presently, Online / Offline Users are facing cyber attacks every day. These cyber attacks affect user's performance, resources and various daily activities. Due to this critical situation, attention must be given to prevent such users through cyber attacks. The objective of this research paper is to improve the IDS systems by using machine learning approach to develop a hybrid model which controls the cyber attacks. This Hybrid model uses the available KDD 1999 intrusion detection dataset. In first step, Hybrid Model performs feature optimization by reducing the unimportant features of the dataset through decision tree, support vector machine, genetic algorithm, particle swarm optimization and principal component analysis techniques. In second step, Hybrid Model will find out the minimum number of features to point out accurate detection of cyber attacks. This hybrid model was developed by using machine learning algorithms like PSO, GA and ELM, which trained the system with available data to perform the predictions. The Hybrid Model had an accuracy of 99.94%, which states that it may be highly useful to prevent the users from cyber attacks.

• 한국정보과학회논문지:정보통신
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• 제28권4호
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• pp.489-497
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• 2001

차세대 정보전에서는 자신의 정보 시스템에 대한 침해방지, 복구 등의 수동적인 형태의 보호뿐만 아니라 상대방의 정보 기반구조(Information Infrastructure)에 대한 공격과 같은 적극적인 형태의 보호가 요구된다. 침입이 발생함과 동시에 시스템에 대한 피해를 최소화하고 침입자 추적 등의 즉각적인 대응을 하기 위해 정보보호시스템이 인간의 개입없이 자동적으로 대응하는 기능을 제공할 필요가 있다. 본 논문에서는 자기확장 모니터링 기법과 이를 기반으로 설계된 침입자동대응 모델을 제시한다. 또한 제안된 모델에 의해 설계, 구현된 침입자동대응 시스템인 ARTEMIS(Advanced Realtime Emergency Management Identification System)를 소개한다. 자기보호 기능을 가진 모니터링과 복제를 이용한 자기확장 모니터링은 모니터링 정보수집과 침입자 추적에 대한 공간적인 제약을 최소화하여 침입탐지와 침입자 추적의 정확도를 높인다.

• 한국정보통신학회논문지
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• 제16권6호
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• pp.1148-1152
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• 2012

본 논문에서는 퍼지 콘트라스트와 HOG 기법을 이용한 지능형 감시 시스템을 제안한다. 제안된 감시 시스템은 주로 침입자 탐지를 위한 것으로 감시 영상에서 명암 대비를 강조하기 위해 퍼지 콘트라스트 기법을 적용한 후, 감시 전/후 영상에 Substraction 기법을 적용한다. Substraction 기법이 적용된 영상에서 히스토그램의 변화가 큰 경우에는 침입자의 침입으로 간주한다. 침입으로 간주된 영상에서 감시 대상의 물체를 감시할 영상과 침입자를 실시간으로 추적하기 위한 영상으로 구분한다. 감시 대상의 물체를 감시할 영상에서는 퍼지 이진화를 적용한다. 퍼지 이진화를 적용한 영상에서 Blob 기법을 적용하여 객체화 한 후, 침입된 침입자의 영상을 저장한다. 침입자를 실시간으로 추적할 영상에서는 HOG 기법을 적용한 후, SVM 기법을 적용하여 움직이는 사람의 객체를 추적한다. 제안된 방법을 실제 실시간 영상에 적용한 결과, 제안된 감시 시스템이 효율적으로 침입자를 감시하는 것을 확인할 수 있었다.